Union Pacific Copula Caboose UP25496

@ Brooke Clarke 2013

Union Pacific Copula
          Caboose UP25496
Background
Photos
Technical
    What keeps a train on the track?
    Air Brakes
    Coupler
    Katie's Coupla Caboose
    Tapered roller bearing
Related
Links

Background

Attended an anniversary party for the Caboose 5 Oct 2013 and took some photos of it and of a 1942 Ford script GPW Jeep that was also there.

Unlike the other cabooses I've seen, this one has the original interior, i.e. it has not been remodeled.

Also at this party there was a 1942 Ford script GPW Jeep.

Photos

Fig 1
Union Pacific
                Copula Caboose UP25496
Fig 2
Union Pacific
                Copula Caboose UP25496
Fig 3
Union Pacific
                Copula Caboose UP25496
Fig 5
Union Pacific
                Copula Caboose UP25496
Fig 6
Union Pacific
                Copula Caboose UP25496
Fig 7
Union Pacific
                Copula Caboose UP25496
Fig 8
Union Pacific
                Copula Caboose UP25496
Fig 10
Union Pacific
                Copula Caboose UP25496
Fig 11
Union Pacific
                Copula Caboose UP25496
Fig 12
Union Pacific
                Copula Caboose UP25496
Fig 13
Union Pacific
                Copula Caboose UP25496
Fig 14
Union Pacific
                Copula Caboose UP25496
Fig 16
Union Pacific
                Copula Caboose UP25496
Fig 17
Union Pacific
                Copula Caboose UP25496
Fig 18
Union Pacific
                Copula Caboose UP25496
Fig 19
Union Pacific
                Copula Caboose UP25496
Fig 20
Union Pacific
                Copula Caboose UP25496
Fig 21
Union Pacific
                Copula Caboose UP25496
Fig 22
Union Pacific
                Copula Caboose UP25496
Fig 23
Union Pacific
                Copula Caboose UP25496
Fig 24
Union Pacific
                Copula Caboose UP25496
Fig 25
Union Pacific
                Copula Caboose UP25496
Fig 29
Union Pacific
                Copula Caboose UP25496
Fig 30
Union Pacific
                Copula Caboose UP25496

3285375 Slack Adjuster -adjusts to compensate for brake
wear and for the installation of new brake shoes.
Fig 31
Union Pacific
                Copula Caboose UP25496
Fig 32
Union Pacific
                Copula Caboose UP25496
Fig 33
Union Pacific
                Copula Caboose UP25496
Fig 34
Union Pacific
                Copula Caboose UP25496
Fig 35
Union Pacific
                Copula Caboose UP25496
Fig 36
Union Pacific
                Copula Caboose UP25496
Fig 37
Union Pacific
                Copula Caboose UP25496


Technical

Richard Feynman: What keeps a train on the track?

-----

-----

Wiki: Directional stability and hunting instability, Hunting oscillation (with animation) (Note: the turning radius of tracks is determined by the way the cone wheel section is dimensioned.)

256571 Car Truck, C.W. Hunt, Apr 18, 1882, - "conical rolling-surface".

Air Brakes

One of the reasons for the caboose was so that the "brakemen" had a place to rest.  Brakemen were required to manually apply the brakes (the big steering wheel at the end of each train car) in order to slow and stop the train.  They were replaced when the Westinghouse Automatic Air Brake (Wiki) was developed.

88929 Steam-power-brake device, George Westinghouse, Apr 13, 1869, B60T13/36 -

These air brakes stop the train when air pressure is applied from the engine. If the brakes are engaged and a coupling breaks, like when a car goes off the tracks, then the valve in the coupling closes so that the cars still on the track have braking air pressure.
This system was later reversed making the "automatic air brake" where the brakes are automatically applied if there is an air leak in the system.
Engine or Tender
Steam-power-brake device, George
                      Westinghouse
Car
Steam-power-brake device, George
                      Westinghouse

609484 Fluid-Pressure Automatic Brake, George Westinghouse, Aug 23, 1898, B60T17/18 - dual system with pressure tanks on each car and two hoses between cars.
Engine or Tender
Fluid-Pressure Automatic Brake, George
                    Westinghouse
Car
Fluid-Pressure Automatic Brake, George
                    Westinghouse

Later brakes work with a single hose between cars that's pressurized for rolling and has atmospheric air pressure for braking.

Knuckle Coupler

Invented by Eli Janney (Wiki) in 1873.
138405 Car-Couplings, Eli H. Janney, Apr 29, 1873, B61G3/04 -
Railroad
                Knuckle Coupler

Katie's Coupla Caboose

This coupler is on a different, but very similar UP capola caboose.  This one has been remodeled inside to be suitable to live in (bath but no kitchen).
Union Pacific Caboose Coupler
Union Pacific Caboose Coupler Union Pacific Caboose Coupler
Union Pacific Caboose Coupler Union Pacific Caboose Coupler Union Pacific coupla caboose remodled with
                    bathroom


Tapered roller bearing (Wiki)

Henry Timken (Wiki) invented the tapered roller bearing used on train axles and pretty much anything with wheels.

Related

Southern Pacific Bay Window Caboose No. 1345  that was for sale, now sold.

Links

Back to Brooke's PRC68, Products for Sale, Alphanumeric Index of Web Pages, End 2 Party Government - Issues
Page created 6 Oct 2013