Showing posts with label timekeeping. Show all posts
Showing posts with label timekeeping. Show all posts

Monday, July 6, 2020

Radium Dial Painters in Ottawa, IL

Because radium-based paint was used to paint numbers on watch and clock dials from 1910-1978, the EPA identified 16 Superfund sites in Ottawa,IL. The radium caused the numbers on the dials to glow in the dark.  In 2019, the last of these 16 sites were processed. [1430wcmy] The women who painted the dials would frequently lick the tip of their brush to keep a fine tip on the end. Because radium is absorbed into bones like calcium, the women who painted the numbers on watch dials went "on to lose their teeth, jaws, and limbs to the radium poisoning. Many died." And residents of the town have suffered rare cancers and birth defects. [TheAtlantic]

Thomas Webb Jr., May 2017
[A statue in the northwest quadrant of the intersection of Jefferson & Clinton.]
As we can see in this street view, there is a sign  North of the statue.
Street View
[It looks like a Google privacy AI blurred the face of the statue.]
If you save the image and look at it with your favorite photo viewer, you should be able to zoom in to a more readable copy.
Ute Yi, Aug 2018

Ute Yi, Agu 2018

The Radium Dial Company started in 1910 and supplied dials to other manufactures such as Westclox. At that time the dangers of radium were unknown. In fact, it was used in "health products."
Rochelle Flagg Township Museum posted ten images with the comment:
Radium and the Rochelle Clock and Watch Manufacturing Company. With the pending release of the new movie, "The Radium Girls" , it is natural that questions would arise about any old clock factory and possible radium contamination. The Rochelle Clock and Watch Manufacturing Company operated from 1906 and ended in 1910, well before the introduction of radium painted dials for time pieces which first appeared during World War I (1914-1918). The first Radium Dial Company factory in Illinois appears to have begun operating in Chicago in 1918 and moved to Ottawa, Illinois by 1922 where the infamous "Radium Girls" story would unfold years later. There is virtually no chance that radium dials were ever used in the Rochelle factory. Radium was extremely expensive ($120,000 per gram) and before WW I the only known use seems to have been for medical treatment of cancer. Later as new sources of radium were found in Colorado and Utah mixed in with Uranium deposits the price would come down to a mere $38,000 per gram. The only real risk to Rochelle citizens from radium exposure would be from patent medicines who claimed health benefits from ingesting radium laced water or cosmetics laced with the radio active material. https://www.nprillinois.org/…/radium-girls-illinois-tragedy…
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In addition to frequently licking the brush tip, they were surrounded all day with paint vials and glowing dials. They also took paint vials home to have "glow in the dark" parties were they painted fingernails, eyelids and lips. [nprillinois]

By the 1920s, management knew that they were killing the Radium Girls. (An Affirmative Action meeting at work taught us that female workers are not "girls," they are women. So now when I go into a doctor's office and they tell me that one of the girls will see me soon, I cringe. But politically correct terms like "associate" also rub me the wrong way. However, Radium Girls is appropriate because some started at 11 or 13 years old.) The company provided a hospital and doctor. This sounds good. But it becomes apparent that the doctor's job was not to cure the girls, but to hide the fact that they died of radium poisoning. They would not allow family to visit patients, and when they died they wanted to bury them right away. When Margaret Looney died, the family insisted on an autopsy, but it was finished before the family doctor could arrive. Margaret started work at 17 and was dead by 24. In 1978, with permission from the family, Argonne National Laboratory near Lemont exhumed her body as part of a study of the effect of radiation on humans. They sent her back encased in lead because she was still so radioactive. [nprillinois]

Catherine Donohue got fired in 1931 because her limping was bad publicity. It wasn't just the company doctor that was hiding the truth. "Donohue's maladies increased and worsened. She lost half of her body weight. Parts of her jaw fell out. She couldn't eat and became nearly bedridden. A local doctor couldn't diagnose her, but denied that Donohue had radium poisoning. Later, a Chicago doctor confirmed she did." She and other ghastly sick dial painters formed what became known as "the society of the living dead." They had trouble finding a lawyer because they were poor. But Leonard Grossman Sr. took their case for free. During the trail, Catherine learned that her condition was fatal and collapsed. The trail continued at her home because she was too weak to travel. The townspeople shunned the girls because Radium Dial was providing well-paying jobs during the depression. The girls won, but it was a small settlement and the company dodged most payments by moving to New York where Illinois law had no jurisdiction. [nprillinois]

Radium Dial's president, Joseph Kelly, was ousted in 1934. He started Luminous Processes just a few blocks away hiring a lot of the painters so Radium Dial went out of business in 1936. The Nuclear Regulatory Commission finally fined it in 1976 for having radiation levels 1,666 times the allowable amount. So the executives of Luminous Processes moved corporate assets to other holdings and closed the business in 1978. [nprillinois]

Grossman Jr. has followed in his Dad's footsteps. The many gruesome deaths caused by radiation poisoning "had helped start a 'movement that ultimately led, not until 1971, to the adoption of the federal OSHA (Occupational Safety and Health Administration) Act, which was the big change in having federal workers' safety laws,' Grossman Jr. says. He worked for the U.S. Department of Labor for 30 years on workers' rights cases." Unfortunately, industries such as asbestos, coal mining and construction (e.g. Hard Rock Hotel Collapse) continued to prove that government oversight is needed to offset greed for the almighty dollar. [nprillinois]

Lost Illinois Manufacturing posted:
 


Saturday, October 21, 2017

Rockford Watch Company

(Satellite)
RAILROAD HISTORY BUFFS OF ILLINOIS posted
The Rockford Watch Company was at 300 South Madison Street: originally built in 1876.
On May 1st in 1876 the first key-wind 18" watch was on the market.
By the year 1877 Rockford was producing their highest grade of watches. Those were watches were engraved with: Ruby, Ruby Jewels and then eventually R.
Three railroads went through Rockford during that time and so railroad men were fond of them.
The watches made in the years after were engraved with "RG," meaning railroad grade.
They were closed by 1915.
( source: Rockford library, digital archives; Illinois and pocket watch repair )
Street View
It looks like the factory originally occupied the two blocks between Grove and Walnut Streets.

1939 Aerial Photo from ILHAP

I was aware that Rockford had a time museum. But I notice the operative word is "had." "It was closed in March, 1999. The collection then moved to Chicago's Museum of Science and Industry, where it was viewed by over two million visitors from January 2001 through February 2004. This exhibition is now closed, and the collection has been sold." [TimeMuseum] It has been on my todo list since the 1970s to go see it. When it comes to history and preservation, one needs to do stuff sooner instead of later. I wonder if the collection was sold intact and who got the money.

(On the satellite image I noticed Ingersoll Centennial Park. I wonder what Ingersoll used to make here. Update: Ingersoll is still in town and it makes milling machines.)

David Charles Lindberg posted three photos with the comment:
I've been spending the last few months photograhing the old commerical buildings in Rockford, which document the cities industrial past. This is the former Rockford Watch Company factory near the downtown. The building was completed in 1876. This is one of several old buildings the city now owns, in the hopes that a developer will buy them for redevelopment.
Jean DeSanto Campbell Wonder if it is contaminated by the illumination paint for the clocks.
Eva Marchese Jean DeSanto Campbell , I was told that the Elgin Watch building in Elgin was highly contaminated by a number of different contaminates, including from the illumination products...
Rob Wilhelmi Jean DeSanto Campbell Thankfully the Rockford Watch Co. was out of business before radioluminescent paint became a staple in the industry.
Rob Wilhelmi The City recently completed a 3D interior scan of the entire building for marketing purposes. Enjoy all https://my.matterport.com/show/?m=SKDktLn54Qp&brand=0
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Monday, April 3, 2017

American Waltham Watch Factory

I originally saved this photo as an example of using line shafts. But since John identified it as Waltham Watch, I dug deeper.

John Abbott posted
Waltham Watch Factory line shafting
Please see PocketWatchRepair for a history of the company and a page of links to photo albums such as screw making machines. The photos were taken by Wm. A. Webster. The estimate for the time frame of the photos is early 1890's.
There are three and one-half miles of work benches most of which are cherry plank two feet wide and two inches thick, 4,700 pulleys, 8,000 feet of wall rods, 10,600 feet main shafting, 39,000 feet of belting, ranging in widths from two inches to two feet. More than 200,000 gallons of water are used daily and the pipes for water, gas and steam aggregate about 24 miles in length. An ordinary watch movement is composed of upwards of 160 pieces requiring for their production about 3,750 distinct operations. [Wm. A. Webster]

I am happy to discover that the factory buildings have been re-purposed. Google Map has 47 photos, some of which are historic views. I think I found some men working in at least one of the factory scenes.

3D Satellite

Monday, November 28, 2016

Illinois Watch Company: Springfield Factory

From posting in Lost Illinois Manufacturing
This factory in Springfield was built by Illinois Watch Company. As the watch business declined, the Sangamo Electric Company grew to fully occupy the factory. By 1962 Sangamo "employed 2,800 workers making electric transformers, meters, time switches and speedometers. In 1978 a French company bought Sangamo and closed the Springfield plant." Sangamo's contribution to WWII was "anti-submarine sonar and mica and paper capacitors, as well as watt-hour meters." [Lost Illinois Manufacturing posting]

In case the Facebook "posting" link is not permanent, I include the first two photos from the posting and summarize the posting.

This 1927 advertisement explains why an "electricity" company got started in a watch factory. In the 1920s electricity was unreliable and the 60-hertz frequency was not accurate, so they used electricity to wind a 24-hour mainspring of a clock that used "a precision jeweled lever escapement as the heart of the movement."

As electricity became reliable and accurate, the mechanical escape clock became obsolete. But the company had already started making watt-hour meters and other products and continued to grow.

(One of the first commercial atomic clocks was bought by a power company so that they could make small adjustments in their 60-hertz power so that over a period of time a day would average, with atomic precision, 60cycles*60seconds*60minutes*24hour cycles.)

By 1970, the company had four other plants in the US and 6 other plants in the world. So when Schlumberger bought the company in 1975, they closed the Springfield plant in 1978 by moving its production to other plants.

Satellite
The factory site now has the Illinois Environmental Protection Agency and a McDonalds.

At the end of the posting are the links: county and company.
Update: It is a 52:08 long silent film. The You Tube comments are extensive.




Springfield Rewind posted
Sangamo Electric 11th St - Nov 1967

Friday, October 14, 2016

Elgin National Watch Factory

(Satellite, The factory has been replaced by yet another parking lot and strip mall.):

Lost Illinois Manufacturing posted a long write up with pictures and a trade chart.)

Brian Morgan posted
The year was 1955 and the Roarin Elgins clock is beginning to wind down. This an ironic photo of car # 401 racing past the Elgin Watch manufacturing plant in Elgin, Illinois on a brisk cloudy day. This photo say's a lot about irony in both transportation and business.
Bob Bresse-Rodenkirk Business at the watch factory was also winding down.
What caught my eye in this photo was the "Elgin Watches" sign.

1939 Aerial Photo from ILHAP
Because the Watch Factory Depot still exists, I was able to find where the factory was in 1938. It was south of National St. The railroad that went by the depot on the east side was a branch of the UP/C&NW. The Chicago, Aurora  & Elgin interurban used to run along the river. It is now the Fox River Trail.

The company was founded in 1864. Elgin donated 35 acres of land so that it would operate in that city. "The Elgin National Watch Company was for a time, one of the largest industrial concerns in the world." Elgin was one of the first watch manufactures to use the principles of mass production such as special tooling and interchangeable parts. This allowed them to make high-quality watches in great numbers at relatively affordable prices. They also had organized quality control. These practices are now considered standard practice, but in 1864 they were still revolutionary. The interchangeable parts also made them easy to repair. "The company introduced more than half the watches made in America from 1920-1928. An Elgin advertisement in 1928 claimed that there were more than 14,418 retail jewelers in the United States and all but 12 carried Elgin watches." The photo below is the final stage of the plant's growth. "At its peak it employed over 4500 people, more than half of which were women." The plant was vertically integrated. "Trainloads of raw material - iron ore, gold, brass, leather, rubber, oil, everything - came in, and finished watches came out. The Elgin shops literally made the machines that made the machines that made watches, from the most basic materials, all under one roof." The entire complex was destroyed in 1966 because jeweled watches were replaced by battery operated quartz watches. [ElginTime] (I could believe they received iron, but I find it hard to believe that they received iron ore. That would mean they also had to receive coal and limestone and have a blast furnace.) They made just watch movements. Up until the 1920s it was common for the local watchmaker or jeweler to fit the movement into a customer selected watch case.

PocketWatchRepair
The building for the Watchmakers' College has also been torn down. But the observatory built in 1910 to set their two chronographs that could keep time within 10-hundredths of a second still stands. It is owned by the city and operated by the school district. [ElginTime]

This looks like a different colorization of the same photo.
safe_image for Celebrating local history with Gail Borden Library
"What was it like to work at the Elgin National Watch Company in Elgin?  Elgin historian Bill Briska and Museum Educator Rebecca Miller will take  you back in time at 7 p.m. on Tuesday, June 6 at the Main Library Elgin  Room. The "Elgin Watch Factory: A Worker's Life" program is provided in  partnership with the Elgin History Museum."


During their production run of over 100 years, they produced almost 60 million watches, which is nearly half of all the jeweled watches produced by American watch companies. During their peak years the were producing over a million watches. [PocketWatchRepair]

Since 1910 was long before atomic clocks were developed, the effort to achieve an accuracy within a tenth of a second is worth noting. An operator would set at the telescope and watch for the transit of a particular star across, I presume, a line placed in the field of view.
At the moment of the transit, the observer would press a button activating an electrical relay and setting two Riefler chronographs to exact time. 
The chronographs were kept in a separate room which only two people were allowed to enter at a time in order to avoid temperature shifts. The room was heated to a constant 81 degrees by dozens of light bulbs all around the room. Each light bulb had an individual thermostat turning it on and off as needed to maintain temperature. To control air pressure, each chronograph was sealed in a glass enclosure connected to an apparatus allowing air to be pumped in or out as needed.. Each clock was mounted on a concrete pier that extended down into the ground 60 feet. The exact time, within 10-hundredths of a second, was transmitted electrically from this facility to the factory.  Thus, using this facility, Elgin was able to accurately measure time to within hundredths of a seconds, and update clocks in the main building. Elgin operated this system until 1958 when technology began providing better methods. [ElginTime]
A 60-foot concrete pier would not be needed to hold the weight of the Rieflier Clock. I assume the purpose of a deep pier is to avoid movement due to surface vibrations such as a train passing by or lightning striking close by. A Riefler Clock was a pendulum clock and the National Institute of Standards and Technology purchased one in 1904 as its first technology for accurate time keeping. The "better methods" was an atomic clock: "1958 -- Commercial cesium clocks become available, costing $20,000 each." "1967 -- The 13th General Conference on Weights and Measures defines the second on the basis of vibrations of the cesium atom; the world’s timekeeping system no longer has an astronomical basis." [NSIT timeline]

I include this engraving because it is another example that black smoke was considered a symbol of prosperity in the 1800s.

PocketWatchDatabase
Update:
David Hahn posted
CA&E National Street Platform, Elgin, IL - Beside the Elgin National Watch Factory
Jerry Hund Did the name National Street station (CA&E and Metra Milwaukee West Line) come from the Elgin National Watch Company?
David Hahn I believe so. On a non railfan note, one of the cool things about the watch factory was the observatory they had to set the time according to the stars. It's still there and is now a planetarium fir the school district.
Jim Kelling You can ride in a car like this at the Illinois Railroad Museum.
Metra posted
The top photo was taken at National Street in Elgin in 1959 and shows a commuter train passing by the Elgin National Watch Company. The bottom picture was taken at the same location in 2016 with Metra Locomotive 215 carrying passengers along the Milwaukee District West line.
William Shapotkin posted
Recently found this undated photo of what appears to be a W/B MILW Scoot stopping at National St Station in Elgin, IL. Elgin Watch Factory visible across-the-Fox River. View looks east. Might anyone be able to date this photo? Also, do not recall ever seeing pix of streamlined baggage cars on suburban trains. (From the facebook page "Elgin Nostalgia & History.")
Alfred Fickensher The date that the UP moved it’s City trains to the MILW was October 30, 1955 so the yellow painted combine guarantees that this pic post dates that date. The second car being a heavyweight commuter coach guarantees that this is a westward commuter train arriving in Elgin. The colors of the various grasses about do not look like late fall November but they do look more like summery grass so I think we could assume this is no earlier than the mid summer of 1956 if not the nect summer of 1957. I can’t remember which model year that chocolate brown Oldsmobile is. If it’s a ‘57 (which my poor memory of things automotive thinks it may be) than we’re looking at no earlier than summer 1957. As for the combine car on a commuter train. . . I grew up in Medinah and remember milk cans (loads out and empties back) being loaded into commuter train combines at the Medinah station. Old George Benhart kept the big MILW baggage wagon chained up to a post under the canopy on the outbound (westward trains) track platform. I apologize that I can’t remember when that milk handling business ended.
Bob Lalich The Olds is a 1957 model.
Mitch Markovitz The Aurora-Elgin tracks may be seen across the river.
Dennis DeBruler Metra dates it as 1959
https://www.facebook.com/MetraRail/posts/925672587569785
Michael Dayton Baggage cars and combines would handle papers from Chicago
William Shapotkin posted
Sj Nelson Hello Bruce, Nope, it was when the Milwaukee painted it's units in UP yellow, so some period after 1955. It is definitely on the Milwaukee mainline. The CNW is behind the photographer.
David Hahn The building in the background was the watch factory, torn down before 1970.
Ed Christ David Hahn 1966

Chuck Edmonson posted
When the Elgin Watch Co. began operations in the Fox River town of Elgin after moving from Chicago around 1866, the village became known as the 'Geneva of the West,' as it was felt it was the answer to the great Swiss watchmakers. From a 1873 publication, this drawing of the early plant. Sorry for the poor quality of the photo, it comes from a rather large old volume.
Hayden B. Baldwin One of the inventors that worked for the Elgin Watch Company was a man named Fed Francis from Kewanee, IL. He had so many patents while working at the Elgin Watch Co. that he retired at 32 ! More about him here, https://dreamstreamr.wordpress.com/tag/elgin-watch-co/Rich Behrends During WWII they made parts for 4.2 mortar rounds fuzes that were assembled at Fenzel Fuse in Huntley.

Steve OConnor The Elgin National Watch Company was the largest site dedicated to watchmaking in the world. At its peak it employed over 4500 people, more than half of which were women. By the end of the '20's the American watch industry was in trouble. Domestic production had dropped from 1,815,438 movements in 1923 to 1,757,282 in 1928. Imports, mainly from Switzerland, Jumped during this same period from 2,019,000 to 4,375,000. Of the thirty-five manufacturers which had once been in production, only five-Elgin, Waltham, Hamilton, Illinois, and Howard were left. In 1929 daily production at the watch factory was cut back from four thousand movements to thirty-five hundred, and the Saturday half-day was eliminated, reducing hours to forty per week for the first time in years.

In the spring of 1931, when local unemployment was estimated at 2,500, the chairman of the committee reported enough destitution to "bring tears to the eyes of men." One case had already shaken the community. A watch worker whose time had been reduced couldn't meet the payments on his St. Charles Street home. It was foreclosed, and the day before the property was to be surrendered, he and his wife committed suicide.

To worsen the situation the Swiss producers began evading customs. In 1932, for example, federal inspectors uncovered twenty-two bales of duty-free rabbit skins, each containing at its center from one thousand to fifteen hundred Swiss timepieces. Duties could be evaded by importing movements without an essential part. In that condition, the rate was lower and the missing part later could be restored at a small cost. After entry eighteen-jewel plates could be substituted for plates with a smaller number of jewels, a process called upjeweling.

A reciprocal trade agreement with Switzerland went into effect on February 15, 1936. Duties on watches were cut an average of thirty-four percent below the 1930 rates, but the tariff still amounted to fifty-three percent ad valorem. Above seventeen jewels, the tariff of $10.75 remained unchanged. The Swiss, in turn, lowered their tariffs and quotas on American goods, including wheat, lard, canned vegetables, chewing gum, typewriters and office equipment. Prior to this agreement, the domestic industry had about fifty-three percent of the American jeweled watch market; from 1936 to 1941, the U. S. manufacturers' share of the market declined to about thirty-nine percent. Aided by government subsidies, the Swiss led in technological innovations.
With the start of WW II the U.S. watch industry was ordered by the government to stop all watch production and switch to war production. During this time, Switzerland was neutral and thus spared the ordeal of committing its own industry to war production and due to the U.S. governments' inaction, flooded the American market and gained a monopoly. Beginning in March, 1944, the American producers petitioned the government for relief from this avalanche of Swiss imports who had devalued their currency on top of having labor rates that were 2-1/2 times less than American labor rates. For 25 months, Washington did nothing, during which the Swiss had captured over 95% control of the U.S. watch market and a complete monopoly of the machinery needed to make watches. After this 25 month delay, in April, 1946 the governments' only action was to "limit" the Swiss importation to the highest level they had attained during the war.


Steve OConnor To add further insult to injury and make a mockery of the U.S. governments' responsibility to safeguard American industry, Washington did nothing when the Swiss government refused to allow the sale of watch producing machinery to the United States. During the war, the U.S. industry had worn out its equipment for war production and now needed to replace it but the Swiss would only "lease" that new equipment. In June, 1946 the Report of the Chamber of Swiss Horology stated -
"Switzerland has no intention of selling horological machines. She intends to rent them under set conditions which conform to the aim of our general horological policy. She will then be able to exert a certain control over foreign watch industries."
Yet the U.S. government put no such conditions on the sale of American machine tools that the Swiss needed to make their watch machinery.
The domestic industry faltered before this aggressive competition. At the end of 1948, Waltham laid off its twenty-three hundred workers and attempted a financial reorganization. In April 1950, Elgin laid off about three hundred, evenly divided between Elgin and Lincoln, and went on a four-day week schedule.
"How far can you shrink?" asked Walter Cenerazzo, president of the American Watch Workers Union when pleading for a higher tariff before a congressional committee. "We are going to die." Waltham went into receivership in 1949, reorganized and was bankrupt again the next year.

A company built on time was winding down. Each year, a part ceased to function. The observatory was abandoned in 1955. The Watch Word stopped publication in 1956. The last dividend was paid in 1957. In 1958, the Lincoln plant, which then employed eight hundred fifty, was shut down and its operations consolidated at Elgin. The Watchmakers College closed its doors in 1960. In an attempt to cut costs, an assembly plant was opened in Blaney, South Carolina, in 1963. The town was so eager to get the factory that it changed its name to Elgin. The main plant in Illinois supplied the southern operation with parts. When the company observed its centennial in 1964, only about 900 were still on watch work in Elgin.

Death throes of the company began in 1965, symbolically marked by a stoppage of the tower clock due to freezing temperatures. Losses for the fiscal year were a staggering $6.8 million. The remaining local employees dropped to about 400. The main plant, declared obsolete, was sold. The clock mechanism was dismantled and shipped to a museum. The abandoned plant was opened to the public for the sale of fixtures. Throngs of former employees, many with tear-filled eyes, took a last, sad walk through once-busy rooms now in disarray. A wrecking crew began razing the plant in the early summer of 1966, working from the back toward the front, a century after the first building had been erected on the site. One by one, the sections collapsed into rubble, until only the tower remained. Then, on Sunday morning, October 3rd, dynamite charges brought the landmark crashing down into a pile of bricks, mortar and twisted metal. Only the main entrance posts were left standing to remind passers-by of what had once been the world's largest watch producer.


Chuck Edmonson posted eight photos with the comment: "From the October 1873 edition of The Land Owner, a series of drawings depicting skilled workers plying their trade at the Elgin Watch Co."

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Mark Llanuza posted
Its 1959 at Elgin IL National street with the famous Elgin watch company in the back ground with Milwaukee Rd commuter train .I went back to try to match everything back up again same location with new Metra train on the former Milwaukee Rd tracks .The famous Elgin watch company at one time had over 4000 employees working there.


John Smith posted a Sanborn Map of the building and four historical photos.

Thursday, August 20, 2015

Westclox Clock Company in Peru, IL


In addition to steel, coal, farm machinery, glass, and candy, I'm discovering that timekeeping was another important industry in Illinois.

20150809 3932
Peru, IL, gives real meaning to the phrases "high road" and "low road". After doing a couple of trips east from Peru to La Salle using the low road of Water/Brunner Street to check out the railroads and industrial buildings, I took a trip east on the high road of US-6. When I spotted an obviously old industrial building on the south side of the road, I stopped to take a picture even though it was (lightly) raining.

Since it was a long building, I stopped more than once to take pictures.


And I got some pictures of this complex from the low road (south or river side) as well. The building is long enough that I had to take the picture in two segments with my 18mm setting.

East end of South side
East end
West end of South side


It was the Westclox Clock Co. building and it manufactured clocks and watches. During its peak in 1956 it employed 4,000 workers who annually produced nearly 2 million clocks and watches (Wikipedia). Employment was down to 900 in 1980 when it closed.  "Since then, the roughly 800,000-square-foot complex has been mostly vacant." (ChicagoTribune) According to a 1916 Sanborn Map (Sheet 13), the buildings occupied 3 square blocks. Now they occupied about 11 square blocks.
 
Barriger

If you compare the 1939 aerial photo below with a current satellite image, you will notice that some of the buildings are gone.
Photo by News Tribune Amanda Whitlock Associated Press

The missing buildings is because a couple of bored teenagers were playing with gasoline and caused a big fire on Jan 1, 2012. "It took about 40 fire departments, 200 firefighters and 3 million gallons of water to get the fire under control." (ChicagoTribune)
Bird's Eye View
To verify that the buildings existed before the fire, I once again use the Bing maps as a time machine.

Update: 
Andy Zukowski posted
Vintage Westclox Big Ben Alarm Clock Assembly Photograph From Peru Illinois Factory
Mary Kaszynski Outain: I worked on the Big Ben clocks, including the Woody Woodpecker clocks during the years 58 thru 64.i was quite young then, around 17 or so.

Darryl Glubczynski commented on Andy's post
My oldest one is from 1927.
 
Another example of line-shaft power distribution.
Andy Zukowski posted
Employees of the Western Clock Company (Westclox) in Peru pause from their duties to pose for this turn-of-the-twentieth-century photo. Although women entered the workforce in large numbers during World War II, it is evident in this illustration that women worked outside the home well before World War I.
Bill Crossman: This was the Tesla of the era imo

Andy Zukowski posted
The 200,000,000th Big Ben Alarm clock at Westclox in 1948.  This is now on display in the Westclox Museum.
Bob Thompson: And the line still looked like that in 1974 when i worked there…..lol

With a line-shaft belt to each machine. 
Andy Zukowski posted
Anthony Kastigar, a Westclox employee of more than 40 years operates a Brown & Sharpe Automatic Screw Machine in our Auto Screw Department. Westclox in Peru, Illinois 1966
Jerry Eick: That was noisy department.
[Someone else commented on the noise and the smell of oil.]

Andy Zukowski posted
Eugene Kalman is operating a vertical mill in the Tooling Department at Westclox in Peru, Illinois. 1963
David Schmitt: My step-dad, Bill Fitzsimmons, was a tool and die maker at Westclox, and he worked his way up to (I think) superintendent. He was transferred to Alabama when the Peru plant closed, and not long after they closed the Alabama plant.

Christie Pasieka posted two photos with the comment: "Two more older views. The one on the left is from 1940 looking away from the river. Other one looking towards the river.  Let me know what you see."
Ruth Spayer: Both photos I see Westclox, L-P football stadium, and other areas around the east end of Peru. The 1940 photo has the smoke stacks and east section of the factory, coal mine on the east end of the plant, Orleans St. heading north, past the football stadium, and proceeding north in Central Park on Westclox Ave. to connect to 9th St. in LaSalle. In the other photo I see L-P High School on the left, the football Stadium in the center and Westclox factory, office building, and other businesses along the Illinois River. A lot of homes north of here probably around 9th St. in LaSalle and usually west of Chartres St. (LaSalle). Thank you for the good pictures.
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Lost Illinois Manufacturing posted
1955 ad.
Courtesy of David Delden and the Local History Project from Then & Now: Westclox Company – LaSalle-Peru [This link is well worth clicking. It has some of the earlier history.]
Bill Molony shared
Tim M. Hickernell I lived in Ottawa from 85-90 and used drive by the old Lasalle-Peru factory. It was quite a sight. I even picked up an old alarm clock made there at an auction. The Illinois Valley was a watch and clock manufacturing center for some time, including radium dial painting in Ottawa. Many a young woman died of cancer in later years from imbibing radioactive radium when "tipping:" their brushes to a point using their tongues. The Ottawa factory was a supplier of radium dials to Westclox.
Jerry Heien Same for Elgin Watch . The old Elgin Watch tower is still standing..... in Elgin (IL)

The Joliet Herald-News posting
Although the company employed thousands of LaSalle-Peru residents by the early 1950s, a series of mergers caused the LaSalle plant to close by 1980.

Matt Overstake posted
Westclox Factory in Peru, IL

LaSalle County Historical Society Museum posted
Kathy Thomas: Look at all that public transportation.
Davis Shroomberg shared
Westclox. Peru, IL.
Dennis DeBruler: Thanks for identifying the location. It looks like the tipple of the Union Coal Mine is peaking over the left end of the buildings.
John Crawford: Radium girls
Jim Schlosser: John Crawford You are 100% correct.
Jim Schlosser: His photo and the mating photo of the men leaving Westclox in the afternoon was found in the files of the Westclox offices after the plant closing in 1980.ac
Ruth Spayer posted
DO YOU KNOW THAT WESTCLOX HAD ITS OWN FIRE DEPARTMENT FROM 1909 - 1980?

Scot Seaton posted
Earl Seaton at his lathe at Westclox, 1955ish
Mark Nickel: Pretty big clock parts
Scot Seaton: Well he made the tools that made the tools. I think he was turning a crankshaft here.

Andy Zukowski posted
Joyce Bierbrodt is examining wrist watch movements with a microscope to make sure they have been properly oiled at Westclox in 1964.

Lost Illinois Manufacturing has a posting describing the history of the plant that includes 12 photos.

A post with 16 photos
Davis Shroomberg It was originally built as 3 separate buildings, as the clock production expanded. They were connected with hallways. This separate construction is what saved most of the factory complex. It was the largest section, the middle second section, that was burned by arson on the earliest hours of January 1st, 2012.

Wikepedia provides some interesting links:
A silent video about how the factory functions. The women do the "finger work." I wonder how many of them suffered from carpel tunnel. Given the repetitiveness and speed of many of those jobs, it is hard to imagine doing that all day long.

Felicia Carboni commented on at post: "My grandmother worked at Westclox where they made aviation devices, compasses and fuses for bombs etc."