US864058A - Safety appliance for railroad-cars. - Google Patents

Description

No. 864,058. PATENTED AUG. 2o, 1907.

` l J. T. ANDREW.-

SAPETY APPLMNGE FOR RAILRUAD GARS.

APPLIUTIN FILED DBO. 27, 1906- 2 SHEETS-SHEET l Swim-wko@ f No'. 864,053. Y PATRNTRD AUG. zo, 1907. v J. T. ANDREW. SAFETY APPLIANGR PoR RAILROAD GARS.

APPLICATION FILED DEO. 27, 1906.

2 SHEETS-SHEET Z.

Il" l n" UNITED Y STATES JAMES T. ANDREW,

OF MONTGOMERY, ALABAMA.

SAFETY APPLIANCE FOR RAILROAD-CARS.

Specication of Letters I|?a1 :ent.

Patented Aug. 20, 1907.

Application iiled December 27,1906. Serial No. 349,727.

To all whom 'it may concern:

Be it known that l, JAMES T. ANDREW, a citizen of the United States, residing at Montgomery, in the .county of Montgomery and State of Alabama, have invented certainA new and useful lmprovements in Safety Appliances for Railroad-Cars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertainsto make and use the same.

My invention relates to improvements in safety appliances for railroad cars, and the object of my invention is to provide means whereby derailment ol a train, with the injurious effects resulting therefrom, shall be rendered practically impossible, this application being in the nature of an improvement upon my former application, Serial No. 317 ,578, led- May 18, 1906.

My invention is applicable not 'only to railroad cars, but also to electric cars of all descriptions, and to locomotives. l

kWith this object in view, my invention consistsin the construction and combinations of parts as herein#- after described and claimed.

In thel accompanying drawing; Figure l represents a side view of a railway truck showing my invention applied'thereto, and aportion of the track. Fig. 2 is an end view of the same with the plow removed. Fig. 3 is a side view partly in section of a portion ofmy device on an enlarged scale with the plow omitted, Fig. 4 is a view similar to Fig. 3 showing the position assumed when a derailment of the car wheels occurs.

In Fig. l of the drawings is represented the truck of -an ordinary passenger car with my improvements applied thereto. i

la represents the truck side frame, b the pedestal tie bar, c the equalizer, d the equalizer springs, e the spring band, f the pedestal, g the axle box, and l1. the axle carrying the wheels fi, these parts being of the usual,- or any preferred, construction.y Between the equalizer and the pedestal tie bar are mounted springs j to produce a cushioning effect or destroy the shock when the guide rollers, hereinafter referred to, come into play. These guide rollers 1c, which take the place of the sliding shoes, shown in my prior application, above referred to, are mounted in the extension frame m bolted to the pedestals. There are two of these rollers for every car wheel, one on the inside and one on the outside thereof, or eight rollers for every ordinary four-wheeled truck. As shown in Fig. 2, these rollers each have a ridge a, and this ridge is always located on the inside part of the roller. These rollers k `are mounted on axles o, which slide freely in slots p in the extensions m fastened to the pedestal. These slots are inclined from the center downwardly in each direction, as shown in Fig. 1. These rollers are normally held at the top of this inverted V slot p, by

event of a derailment, in which case the rollers would assume the position shown in Fig. 4, I provide additional supporting springs 3 connected to the frame m and to the upper part of each brake block r respecl tively. These springs are weaker than the springs q, and the brake blocks r are held up against the rollers k and held against saidrollers under all conditions by means of the springs q and 3. To preventratmng each I of the slots p at its upper highest point is preferably provided with a slight depression s, in which the axle o of the corresponding roller rests, the construction being the same on each side of the roller. Under ordinary c'onditions, therefore, the rollers will keep the position shown in Figs. 1 and 3.

To the main frame of thetruck are attached depending beams tand u in which the inner rollers of each set 'are journaled, and to this frame is also attached a depending center beam '11, to which is attached an approximately triangular brace w, passing through which, and attached to the beams tand u, is a casing x, which surrounds the axle h, but does not contact therewith or form a bearing therefor,this casing being previded to prevent injliry 'to the truck in case of a broken axle. Snow plows y are preferably attached, one at each end of said truck, to prevent the snow from reaching the rollers 1c and displacing them. i

The operation is as follows. In case the train leaves the track for any reason, as, for example, if the track is spread, and especially while traveling around a curve, ,some 'part of the truck willl drop slightly, and one or more o'f the eight rollers c will strike the rail. The result will be that this roller 'Will be displaced from its highest position, as shown in Fig. 3, and thrown down so that its axle rests in the lowest portion of the slots p,

as shown in Fig. 4, for example, compressing the corresponding springs q. y The compression of the springs q causes the meniscus' shaped part r-to press against theV roller, 'thus acting as a brake and gradually converting the roller into a sliding shoe. The downward movement of the roller, or rollers, in the slots p, will, at the same time, lift the truck and cause the car wheels to be lifted over any obstacles, such as frogs or switches.

The train sliding along the track will soon be brought to a stand still, but preferably an arrangement is used whereby the -forcible displacement of the rollers from i,

the position shown in Fig. 3 to that shown in' Eg. 4, will automaticalliset the air brakes, such connections being illustrated Figs. 6 and 7 of my application,

above referred to, Yit being deemed unnecessary to rev senese 1. In a safety appliance for cars and locomotives, thecombination of trucks and means' carried thereby fr automatically lifting said t'rucks elidjapplylng u braking action in cnse of accident, said means including spring` supported rollers, and frames' provided with slotsv in which the axes of `said rollers are mounted, said 4frames p being. carried on the scribed. v v

2. In a safety appliance lfor c ars and lcomotives, 'the combination of trucks and rn'eanscarried thereby for automatically lifting sald'trucks and setting the brakes incase of accidentfwith snow plows mounted on sa'id trucks, substantially as described. 2D 3.In a.v safety appliance,for Acars and locomotives, the .combination of trucks having depending side beams and .pedestls, slotted frames attached thereto, a roller carried in 'cachot said frames, springs supporting said roller, brake shoes held against said. rollers h yfeald springs, und a casing including the carfarxle, the whole structure being braced together, substantially as described. 4. In a safety appliance for curs and loc0motives,` the combination of trucks, frames Icarried thereby .provided with .slots of inverted V-shape, rollers'whose axles are `'iO-mounted in said slots, nsprings for normally holding said vrollers at the highest point of said slots, said, rollers y beingl provided with anges corresponding to the gage I of the rolls, substantially as described. 5. Ina safetyappiiance for cars and locomotives,l the combination of .trucks, slotted frames carried by said trucks,:each of said slot's being in the shape of nn inverted V, rollers whoseaxles are mounted in said slots, l each of said rollers being provided with a ange, and the iianges on the pairs 'of rollers corresponding to the gage 40' of the rails, a brake shoe, one on each side of said rollers, ,and' springs bearing against sold brake shoes, and normally holding the axles of the rollers at the highest points of the slotsfsubstantiall. as described.-

6. In ,a safety appliance for cars and locomotives, the combination of a truck and a plurality of paired rollers, one palrior each wheel, the onte and inner'rollers of truckframe, .substantla1ly as Vdeesci cori'espondingpiir being df theisame gage as the railroad, slottedfromescarrled by the car trackl in which the axles o fsaid rollers ,are mounted, and tension springs normally holding th'e axles' of said roilersnt the highest' point ofsad slots-'while allowing said axles to slide down in either direction -to the lower endsofy the 'slots in case loi? accident, .thereby .lifting the car wheels above the level of the rails, substantially vas described 7. In a ssietyapplince for carsand locomotives, the colnhinationwith a truck, of a pair ot'` rollers for each wheel, slotted frames carried by said truclg, in which slots the axles f the.. rollers are mounted, said slots being shaped like en inverted V, andsuid rollers beingeach provided With harige, the fianges on corresponding rollers Correspending to the gageoi th'e railroad, a brake block bearing on euch side of cach oi' said rollers, a' spring connected to each brake block und the supporting frame, whereby the axles of the rollerswill bc normally held :it the highest point of.' said slots, and a snow plow located at each end of sai'd truck, substantially is described.

8. In a safety appliance for cars und locomotives, the combination ottrucks, supportingfrnmes carried thereby, each frame' being provided vWith slots made 'like :1n inverted V but having a cut avvay'portion :it the highest point on its lower side,,iisnged rollers whose axles are located in' said slots, two brake vshoes bearing on each roller, one at each side' thereof, :md springs, one end of each of which bears gainstone. of the brake shoes und the other end against the slotted frame, substantially as described. l

9. In n safety appliance for cars and locomotives, the combination with a truck frame including the cqnaiizers, and pedestels,'springs. between the equalizers and pedestals, slotted frames carried by said pedestals, and beams depending from said truck, and a plurality' of rollers.

. Witnesses:

E? WAGNER, S; E. WAsnBUnN.

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