US926838A - Car-truck. - Google Patents

Description

W. S. ADAMS.

GAR TRUCK.

APPLIOATION FILED SEPT. 18, 1908.

Patented July 6, 1909.

4 SHEETS-SHEET 1.

W. S. ADAMS.

GAR TRUCK. APPLICATION FILED SEPT. 18, 1908.

Patented July 6, 1909.

4 SHEBTB-SHEET 2.

W. S. ADAMS.

GAB. TRUCK.

APPLIOATION FILED SEPT. 1a, 1908.

Patented July-6, 1909.

4 SHEETS-BHEET 3.

W. S. ADAMS.

GAR TRUCK. APPLICATION FILED SEPT. 18, 1908.

Patented July 6, 1909. 4 SHEETS-SHEET 4.

5 m llllpl LIIINFII...

elliptic spring holder.

"UNITED stra ns PATENT OFFICE.

WALTER S. ADAMS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE J. G. BRILL COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

CAR-TRUCK.

Specification of Letters Patent.

Application filed September Patented July 6, 1909. 1a, 1908. Serial No. 453,679.

To all whom it may concern:

Be it known that I, WALTER S. ADAMS, a citizen of the United States, and a resident of the city and county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Car-Trucks, of which the following is a specification.

The object of my invention is to simplify of construction. L Fig. 7 is a side view of the axle box shown in Fig. 3. Fig. 8 is a front end elevation of'the same. Fig. 9 is a sec tional view taken on the line 9-9 of Fig. 1, looking in the direction of the arrows, some parts being omitted to simplify the illustra-' tion. Fig. 10 is a sectional view taken on the line 1010 of Fi 9, looking in the direction of the arrows. Figs. 11, 12 and 13 are end and side elevations and a plan view respec-' tively, of the equalizing spring cap and semi- Figs. 14 and 15 are a side elevation and plan view respectively, of the equalizing s ring seat.

Throughout t e various views of the draw ings, similar reference characters designate similar parts. v 7

My improved truck 1 is provided with the usual car wheels 2 united by axles 3 which run in axle boxes 4 in the conventional manner. These axle boxes support the frame of the truck 5 as well as the equalizing bars 6. The equalizing bars 6 carry the equalizing springs 7 which carr by a special form of caps 8, the upwardy arched semi-elliptic.

springs 9 from which the bolster 10 is suported by means which will be described beow. By this construction, the load upon The details by which this iscarried out will now be pointed out;

The axle boxes 4 are each provided with a downwardly extending lug 11 which is perforated and adapted to be secured to a bracket 12 by a bolt 13 and the bracket 12 is riveted to a tie-bar 14 which unites the ears 11 of the two axle boxes on the same side of the truck. The bolt 13 is preferably provided with a suitable lock-nut 15, and washer 16,- a coil spring 17 and a second washer 18 so that the bracket 12 is firmly held against the lug 1 1.

each provided with a cylindrical surface as shown in dotted lines in Figs. 2 and 8 and on these cylindrical surfaces are saddles 19 which are brackets to which equalizing bars 6 are riveted by rivets 2.0.

the equalizing bars fi'and it is, in part, downwardly disposed close to the axle boxes 4 but does not touch the same except to rub against the sides thereof and the lowerends of the frame 5 areturned horizontally and as stated above, the frame 5 carries no load, but is made so as to resist horizontal stresses. The frame 5 may terminate here or may be side of the truck whereby additional strength and stiffness are acquired and also additional weight. l

It is obvious that if desired, the tie bars14 may be duplicated, one being placed on each side of the lugs 11. This also gives additional strength, as well as additional weight. The equalizing bars 6 do not terminate with the axle boxes 4, but extend downwardly beyond the same and then horizon tally to form extensions 23 on which rest the motor supports 24.

chords 25 united by crossings or transoms 26 and these crossings or transoms 26 rest flat on the top chords 25 and run on these to points near the axle boxes. The transoms 26 and to chords 25 are preferably riveted together y rivets 27 so that under no circumstances canxthese arts become separated or work loose. either the transoms nor the to chords require any vertical webs extended around so as to joinwith the other The frame 5 of the truck consists of top because t ese parts aresubjected to hori-- The upper surfaces of the axle box 4 are The frame 5 of the truck 1 passes between i bolted to extensions 21 of the tie bars 14 by boltsv 22. This is sufficiently strong because i wear plate which engages the bolster 1O.

The holes are disposed on the segment of a circle, so that by moving the wear plates to and from the bolster and securing the wear plate by the bolts providedv for, the adjustment of the wear plates to and from the sides of the bolsterv may be accomplished.

The bolster 10 is supported in the followin manner. The equalizing bars 6 near the '1 same.

a e boxes 4, shown in Fig. 2, are provided with equalizing spring seats 29 made of the ordinary construction or they may be pro vided with perforated lugs 30 and 31 to enable these seats to be secured to the equalizing bars as firmly as desired. These seats are also provided with central perforations 32 through which a tie bolt 33 extends as shown in Fig. 10. The spring seats 29 each carry a coil spring 7 which corresponds to the ordinary equalizing spring ofa Master Gar Builders truck. The springs 7 are covered with spring caps 8 each of which is as follows: Each is provided with a central perforation 34 through which the tie-bolt 33 passes and they are provided with perforated ears 34 adapted to surround pins, not shown, on the lower surfaces of the top chord 25 so that these caps will always be guided to a certain extent in their vertical movement. These caps 8 are also provided with projecting lugs 35 reinforced by webs 36 as shown in Figs. 11 12 and 13 and at their upper ends they are provided-with seats 37 for the pins 38 of the stirrup 39 which carry the ends of the upwardly'arched semi-'elli tic springs 9. This mounting of the semi-e1 iptic springs permits them to spread slightly at their supports, as is obvious. Each semi-elliptic spring 9 is provided with a band 40 which has two ears 41 through which extend bolts-42 and each bolt 42 carries two links 43, one link at each end of each car 41. Springs 44 are placed on each bolt 42 adjacent to the nut 45 so that an desired pressure may be placed on the links 43 which will prevent a too free movement of said links. Thelower ends of said links 43 are united by a plate 46 which has ears 47 corresponding to the ears 41 and bolts 48 connect these ears and'links 43, as shown, so that the plate 46 is always parallel to' the band 40 and has a parallel movement therewith, transversely of the truck. The

bolster 10 issecured to said plate 46 by means of bolts 49 which extend through the This 'bolsterlO consists of a lower bar 50 with upturned ends 51 against which abuts the-upperbar 52. Above each plate 46 the bars 50jand 52 are parallel and be-' tween the plates 46 these bars are separated -by-the filler 53 and all parts are held to- 6 gether by means 'of bolts 54. The upper bar 52 is also provided with aside bearing 55 I proved truck will be readily understood.

The car body rests on the bolsters of the trucks; each bolster carrying one-half the weight in the following manner: The bolster transmits this weight to the plates 46 which transmit the stresses through the four links 43 to the band and from thence to the upwardly arched leaf-springs 9 which are somewhat straightened in consequence and spread the stirrup 39 to some extent. I The stresses not taken up by the springs 9 are transferred to the equa izing springs 7 through the-caps 8. From thence the weight is transmitted through the spring. seats to the equalizing bars 6 and from thence to the axle boxes 4, axles 3 and wheels 2. The axle boxes 4 have connections without s rings with the equalizing bars 6 through t e cylindrical bearings and they are connected to the frame 5 and to each other by the bars 14 which are pivotally connected with said axle boxes.

his permits a certain flexibility of movement of the axle boxes to corres 0nd to the inequalities of the track and it a so provides that the motors and brake gear may be sup ported from the equalizing bars so as to inde endent of the sprlng system of the true The truck frame'is also independent of the spring system of the truck and the bolster transmits the stresses incidentto its use, through the spring system of the car to equalizing bars without disturbing in any Way any other portion of the truck,

While I have shown and described one embodiment of myinvention, it is obvious that it is not restricted thereto, but is broad enough to cover all structures that come Within the scope of the annexed claims.

Having described my invention what I claim is:

1. In a truck of the class described, axle boxes and means for sup ortingthe same, tie bars connecting said alse' boxes and a top frame secured to said tie-bars resting on said axle boxes, equalizing bars supported by said axle boxes, equalizing springs su ported by said equalizing bars, a bolster and carrying said ,bolster from said e ualizing springs and independent of said truc frame.

2. n a truck of the class described, axle boxes and means for sup orting the same, tie bars connecting said axle boxes, equalizing bars supported. bysaid axle boxes, a truck frame secured to said tie bars, a bolster, and

means for means for supporting the same from said equalizing bars and independent of the truck ame. Y

3. In a truck of the class described, equalizing bars and means for supporting the carrying said bo ster from said leaf springs.

4. In a truck of the, class described, a frame com osed of top chords extending downwar 1y on one side of each pedestal, tie bars uniting said top chords and transoms resting on said top chords and secured thereto.

5. In a truck of the class described, equalizing springs and means for supporting the same, caps on said springsand a truck frarne above parts of said caps and between other parts, u wardly arched leaf springs having their en s mountedon stirrups supported by saidcaps, bands on said springs, hnks pivotally cdnnected with said bands and plates connecting the lower ends of said links and a bolster carried by said plates.

6. In a truck of the class described, -semi-- elliptic springs and means for s same, bands on said springs, lin ivotally connected with said bands and b0 ster and means for supporting said bolster from said links, and springs for regulating the pressure of said links a ainst said bands.

7. In a true of the class described, equalu porting the izing bars with saddles, axle boxes with cylindrical surfaces on which said saddles rest, v

downwardly exending lugs on said axle boxes and tie bars connecting the. lugs of axle boxes on the same side, of the truck whereby said axle boxes will always be kept in pro er relation.

8, n a truck of the class described, equalizing bars, saddles having cylindrical seats supporting said bars, axle boxeshaving cylindrical surfaces on which said seats rest,- downwardly extending lugs, tie-bars con-. necting said lugs on said axle boxes, and a truck rame sup orted by said tie-bars.

9. A truck o ,-the class described, axle boxes having depending lugs, tie bars, brackets connecting said tie bars and lugs and bolts with springs thereonadapted to hold said brackets and lugs in their proper relations. I

Si ned at the city and county of Philadel his, State of Pennsylvania, this 14th day of eptember, 1908.

' WALTER S. ADAMS.

Witnesses: HENRY C. EsLmG, H. F. MCKILLIP.

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