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This ad was released roughly around 1948, advertising the Mobil Directo air raid siren. I’ve posted an ad for this siren previously, which only featured the Mobil Directo’s gas engine-driven BN52 model. This ad introduced a new variant of the Mobil-Directo, driven by a 10HP electric motor instead of the 25HP Wisconsin...
The Model M was an early electric siren first developed in 1920 by the Inter-State Machine Products Company, who would later rebrand to the Sterling Siren Fire Alarm Company based out of Rochester, NY. The Model M was perhaps the most popular and widespread fire siren sold in North America, with units being sold across the US...
The ads about a typewriter. Feel nostale. I wish i can acquire a newly product typewriter with good price (pricing as an device to be use rather than an ancient rare decor)....
Source: Life Magazine - November 23, 1936 link
The Thunderbolt was one of the more unique designs for an outdoor warning siren. Instead of using a large chopper (the part that makes the noise in mechanical sirens) the Thunderbolt uses a small chopper through which pressurized air is fed from a Roots blower at the base of the siren. Because the feed of air is constant from...
https://discuss.online/pictrs/image/f4c91d3c-929f-48be-baf6-2729a01b4ac2.jpeg...
The “Denver Quadruplex” was a very early example of an electric siren, first invented and sold in 1914. The company who built these, the Denver CO-bssed William A. Box Iron Works Company , is generally credited for inventing the first practical electric outdoor warning siren, the Denver Type A, a few years earlier....
https://sh.itjust.works/pictrs/image/6a49d2c9-4031-41e2-8a04-8ce4653f6dda.jpeg https://sh.itjust.works/pictrs/image/fe3710b1-9b84-4a6d-9bf6-7ce10dc08cda.jpeg
I don’t care that she’s decades older than me I’ve had a crush on her since I was a child.
Takeaway: everyone’s a clown
A friend of mine posted this to a Discord server I’m in and thought it was interesting. It’s for the Peterbilt 451, a very unique and short-lived truck design that appears to have only been sold to a few companies and is now extinct. It appears to have combined a box truck with a semi truck.
This is a 1952 ad for the engine-driven BN52 model Mobil Directo air raid siren, which used a 25HP Wisconsin air-cooled engine to drive both the chopper (the noisemaker) and two belt-driven pulleys to spin the siren around. Later BN44E models would switch the engine to an electric motor. It was one of the first rotational...
