What is the Triangle Symbol on Hoppers

Wed Sep 30 14:45:05 EDT 2020

Matt:

To address your question about sleeve (or cartridge) bearings for 
freight car axle journals, I am attaching scans of two pages in the 1957 
Car Builders' Cyclopedia showing details of the Clevite brand of that 
type bearing.

Gordon Hamilton

On 9/26/2020 8:37 PM, NW Mailing List via NW-Mailing-List wrote:
> I have not heard of these types of bearings before. Did they work 
> similarly to sleeved rod bearings.
>
> Off to the internet I go.
>
> Matt Goodman
> Columbus, Ohio, US
>
> On Sep 25, 2020, at 9:36 PM, NW Mailing List <nw-mailing-list at nwhs.org 
> <mailto:nw-mailing-list at nwhs.org>> wrote:
>
> OK; here is the story.
> In the pre-rollerbearing era, various experimental journal devices 
> were tried.  One of these was an aluminum sleeve bearing that was 
> applied to some covered hoppers.  One of these ran a hotbox up on the 
> Shenandoan Valley someplace and had to be set out.  Since there were 
> no sleeve bearing equipped wheels, a wheelset had to be shipped from 
> Shaffers.
> They took a G-1 gon out of storage somewhere and spotted it for 
> loading a pair of wheels.  The car men loaded it and blocked it 
> properly and it was ready to go.  I OK’d the car and it left.
> Unfortunately I neglected to look at the G-1’s journals.  Turns out 
> that every box was full of dirt and I think it made about 25 miles or 
> so before it had to be set out.  Like I say, eight hotboxes, a record 
> that will never be broken.  And it wasn’t like the car was heavily 
> loaded; the G-1 was a fifty-ton car and the wheel set might have 
> weighed 17 or 18 hundred pounds.
> So that is how ol’ Ed won his ig-Nobel prize.
> -Ed King
> *From:* NW Mailing List
> *Sent:* Friday, September 25, 2020 6:14 PM
> *To:* NW Mailing List
> *Subject:* Re: What is the Triangle Symbol on Hoppers
>
> Ed,
>
> Baggart!  You must had OK'd a car without any pads in any of the 
> journal boxes.  Even though we worked on the Shaffers Crossing Shop 
> Track together in those days, don't try to shift the blame for these 
> hot boxes onto me!
>
> Gordon Hamilton
>
> On 9/25/2020 5:08 PM, NW Mailing List wrote:
>> These pads were not limited to hopper cars. They applied them to box 
>> cars, gons, you name it.  I’ve seen these triangles on the ends of 
>> tenders that used the pads.
>> The pads were an improvement on waste packing; waste could travel up 
>> the side of the journal and catch under the brass, causeing a lack of 
>> lubrication in that area and thus a hotbox.  The pads bridged the gap 
>> between “friction” journals and roller bearings, which started to 
>> come in about 1960.  N8w was hell on hotbox elimination; anything 
>> that stopped a train got into the Gross Ton Miles per Train Hour and 
>> was thus undesirable.
>> Working in Shaffers Crossing Car Department, there was a lot of 
>> pressure about hotboxes on eastbound coal trains; the speeds were 
>> higher and that increased the possibility of hotboxes.
>> BTW – I hold the record for the number of hotboxes on a four-axle 
>> freightt car, and it will never be broken.  Eight.  I still remember 
>> it and will tell anybody interested how it came about.
>> - Ed King
>> *From:* NW Mailing List
>> *Sent:* Friday, September 25, 2020 2:41 PM
>> *To:* N&W Mailing List
>> *Subject:* Re: What is the Triangle Symbol on Hoppers
>> The lettering in the triangle said, BOXES PACKED WITH PADS.
>> Stencilling was on the upper left corner of car sides, as I recall.
>> That was applied when lubricating journal pads came around.  The 
>> lettering was used in the 1950s and 1960s.  Once all the friction 
>> bearing cas had journal pads, the triangles went away.  Of course, by 
>> the 1960s, roller bearings were coming on the property in increasing 
>> numbers.
>> -- abram burnett
>> Puh-sizhun Sked-youled Turnips
>> ------------------------------------------------------------------------
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