Vintage work crew photos

**Ralphxyz** · Apr 5, 2019, 06:57 AM

and just what are all of those people looking for? They are not dressed like assembly line workers.

Ralph

**Frank S** · Apr 9, 2019, 12:45 PM

they are inspecting serial numbers, as everyone knows a bomb or shell won't work without the correct serial number printed on it.

**Toolmaker51** · Apr 10, 2019, 07:37 PM

Originally Posted by Frank S

they are inspecting serial numbers, as everyone knows a bomb or shell won't work without the correct serial number printed on it.

Try as I might, have other tasks this evening, can't produce legit references/ justification for ordnance serials.
Large naval gun barrels have a predetermined lifespan, even with chromium plating in the first ~2/3rds of length. The hygroscopic nature of black powder causes erosion, combined with the heat and friction produced in firing. Compensating for bore erosion is incremental sizing, as projectiles were 'custom' lots, made suitable for a particular ship, and more specifically condition of bores.

Occasionally, the used micrometers appear on auction sites. The frames are near fully rubber insulated to guard expansion when held in the hand. When in the market for larger micrometer's with tenths [10,000] verniers, these are a good choice.

Hare-hole! US-NAV-WEPS related material. USA 16"/50 (40.6 cm) Mark 7 - NavWeaps

**Jon** · Apr 9, 2019, 12:15 AM

Four Wheel Drive Auto Co. Washington, D.C., circa 1927.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...w_fullsize.jpg

**hemmjo** · Apr 9, 2019, 05:31 AM

I bet the slick tires on the front of that one on the left really help with traction.

**volodar** · Apr 9, 2019, 10:20 PM

¨I bet the slick tires on the front of that one on the left really help with traction¨

Depending on conditions, they give the ultimate in traction. Have a look at Formula One wheels.

**hemmjo** · Apr 10, 2019, 05:50 AM

Originally Posted by volodar

Depending on conditions, they give the ultimate in traction. Have a look at Formula One wheels.

Ah yes, but even F1 has tread for use when the conditions degrade.

**mr mikey** · May 25, 2024, 04:52 AM

They look like solid rubber tires like a Hilo, that will rattle your brains.

**mklotz** · May 25, 2024, 11:49 AM

Originally Posted by mr mikey

They look like solid rubber tires like a Hilo, that will rattle your brains.

What does "they" refer to. I fail to see anything that looks like tires.

**mklotz** · May 25, 2024, 01:45 PM

Originally Posted by mr mikey

They look like solid rubber tires like a Hilo, that will rattle your brains.

According to Inthegroove you're referring to post # 616.

That post was made more than five years ago.

If one is going to comment on a post that far back in a thread this long at least have the courtesy to identify what one is referring to - either a quote or the post number.