Posted on 02/09/2020 12:05:22 PM PST by Java4Jay
I was watching an old movie 'Come and Get Me' with Lloyd Bridges and noticed the jail cell had bars with two ridges. I recalled from my youth seeing the same type bars and had wondered why the ridges. I searched the net with no answer to my question. See picture attached, feedback welcome, thanks.
Extrusion would be my guess also as to how they are made. I suspect the notches cut in the horizontal flat bar to accomodate the spline on the rod bars keep it from rotating so prisoners cant rotate them making a huge amount of noise.
Agent 1: "Three t!ts. Awesome.
Agent 2: "Maybe she should have four t!ts"
Graeme Willy: "That's just sick!"
Steel bars are rolled through a forming mill. Softer metals can be extruded: aluminum, brass/bronze, copper. The ridge is to lock the vertical bar into the crossbar, like a key on a rotating shaft.
Why only 2 ridges and not 3? Because it’s like the 3 strikes rule. If you have 3 ridges and you miss shooting the escapees after they get over first two, you then have to let them go if they get past the third ridge....it’s the rules! /sarc…;)
Why only 2 ridges and not 3? Because it’s like the 3 strikes rule. If you have 3 ridges and you miss shooting the escapees after they get past the first two, you then have to let them go if they get past the third ridge....it’s the rules! /sarc…;)
they could’ve been made by ruffles...
THE VISUAL JOURNAL
Route 66 preservation groups have joined local efforts to restore and reopen the 1869 Macoupin County Jail, known as the Cannonball Jail, in Carlinville, Ill.
http://visuals.sj-r.com/cannonball-jail-in-carlinville-ill-april-21-2017/?rq=carlinville
Fluting is more elegant. :)
It might also be less of a problem to photograph than an unbroken smooth surface. Motion picture camera movement wouldn’t be captured as easily.
While we are answering r.e. odd details in physical objects, why are the slots on 30-packs of beer offset from center?
That would be my guess.
It prevents rotating the bars in order to loosen them.
A piece of rebar has two ridges as well, so it will not twist within the concrete that the rebar is reinforcing. Maybe the theory is the same with the bars of a jail cell. If the bars did not have ridges, an inmate could twist them, and progressively weaken the concrete surrounding the bars.
Ed
Jeeze! 35 responses and still no one got it right.
The welded line makes it impossible to use a pipe cutter.
Old parking meters have the same welded lines.
#19 this is a personal photo of Java4Jay : )
Which do you prefer?
Because R-R-R-Ruffles have R-R-R-R-Ridges.
My guess is it makes the fit sturdier when used with concrete, makes the bars less apt to loosen with age and rotate. Also, the flat horizontal bars are likely fitted to the ribbed shape increasing stability.
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