US1076009A - Car-truck. - Google Patents

Description

W. S. ADAMS.

GAR TRUCK.

R APPLIUATION FILED JUNE 18, 1913. M7) JGQQQQ Patented Oct. 14, 1913.

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m)- 1 I v Q giiiixlm v I 6/??? l3? 15. 9M 1 13 QQ W. S. ADAMS.

GAR TRUCK.

APPLICATION FILED JUNE 18, 1913.

Patented Oct. 14, 1913.

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W. S. ADAMS.

OAR TRUCK.

APPLIOATION FILED JUNE 18, 1913.

LWG QQQ, Patented 001114, 1913.

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WALTER S. ADAMS, F PHILADELPHIA, PENNSYLVANIA, ASSIGNOE TO THE 5. G.

BRILL 439., OF PHILADELPHIA. PENNSYLVANIA, A CORPGEATION 0F PENNSYL- VMTIA.

CAR-TE'UCK.

not/once.

To aid whom it may concern Be it known that I, l/VALTER S. ADAMS, a citizen of the United States, and a resident of the city and county of Philadelphia, State of Pennsylvania, have invented new and useful Improvements in Gar-Trucks, of which the following is a specification.

My invention has relation to improvements in the bolster support in maximumtraction or eccentrically pivoted trucks, in which, among other things, considerable clear space within the truck frame is required for the mounting of the truck bolster, etc., near the driving wheels; although iny improvements may be advantageously employed in other relations, and other forms of trucks. I

One of the objects of my invention is to provide a suitable bolster support in car trucks, so that it may be suitably supported tiring all the conditions of service. To obain this result it is desirable to use both ear and spiral springs, so that the slow acion of the leaf springs will be combined with the quick action of the coiled springs to produce an easy riding truck.

Particularly, the object or my invention is in part to provide a combination of this sort where the links for supporting the leai springs are preferably outwardly splayed to obtain a long or extended spring base, and coil spring is placed between the bolster the leai spring, and suitable mechanism is provided which will keep the coil sp from being subjected to excessive stre which will tend to deform or injure it, or to interfere with its proper action. This, and other objects, are accomplished by my invention, one embodiment of which is hereinafter set forth.

For more particular description of my invention, reference is to be had to the acnying drawings, forming a partheren whichure l a side elevation of a portion L rovided with my improvement. a plan view of a part f the sa= a sectional view taken o the line Fi 2, looking in the re arrows; i is a sections 11 the line l-4 of 2, loot ection of the arrows; v 1' taken on the line 5 g in the direction or" the arro Specification of Letters Patent.

Application tiled June 18, 1913.

suitable wheels 2 Patented @ct. Ml, 15913.

Serial No. 774,286.

a sectional view taken on the line 6-6 of Fig. 5, looking in the direction of the arrows; Fig. 7 is an inverted plan view of a portion of the bolster; Fig. 8 is a plan view of a portion of the bolster; Fig. 9 is a sectional View taken on the line 99 of Fig. 8, looking in the direction of the arrows; and Fig. 10 is a sectional view, taken on the line 1010 of Fig. 5, looking in the direction of the arrows.

Throughout the various views or" the drawings, similar reference characters designate similar parts.

My improved truck 1 is provided with and 3 which, in the em: bodiment shown, are suitable wheels for a maximum traction truck, it being understood that for any other form of truck, suitable wheels will be provided. These wheels are mounted on the usual axles and 5 respectively, which are connected by journal boxes of the conventional form to the pedestals 6 and 7 of the usual type, and these edestals are connected by a suitable top cord and a tie-bar 9, or by any other suitable means. The top cord 8 has seats 10 which carry links 11, of the usual type, preferably splayed outwardly to increase the lateral spring base) and these links connected by a leaf spring 12 provided with a strap 1 which may be of any desired form. The ends of the spring lie on and engage blocks 11 which are flanged to engage the links ll, and inclined at 11 to allow for the (lefiection oi" the spring 12.

Sui-mounting the strap 18 is a spring-seat it of a novel form. This scat i a laterally and adially intend ng perforated car 15, the purpose or whiciiwill be described below. in the seat of this spring cap or seat l i is a suitable coiled spring 16 which is surmounted by a second cap or seat 17 fixed to a bolster l8.' This bolster 18 is preterably provided with a top flange 19 and a bottom flange 20 connected by a suitable web 21. whichextends from one spring cap 1? to other. The other flange 19 is surmounted by suitable sidc bearings 22 and a center bearing 23, and a suitable opening 24: is made in the webs 21, 19 and 20 for the king bolt.

Each side bearing 22 has suitable rubbino surface to support the car and other surraces which are adapted to engage suit- Cit able rub plates 26 carried by the transom 27, and other parts which engage a U iron 28 secured to the transoms 27 adjacent to the top cord 8. The transoms 27 and top cord 28 are reinforced by means of suitable gusset plates 29, which are bolted or otherwise secured in place.

The perforated lugs 15 receive pins 30, which pins 30 engage paired links 31 which run to corresponding perforated lugs 32 which are integral with the web 20 in the.

preferred embodiment of my invention. These lugs 32 areprovided with suitable pins or bolts 33 which also pass through suitable registering perforations in the links 81 and pivotally connect these links with their respective lugs. The links 31 prevent the spring-seats 1e from approaching each other, or otherwise becoming displaced but do not interfere with the slight vertical movement of these seats when the truck is in use or the endwise movement of the bolster, 18 as they move laterally in unison with the bolster. The omission of these bars 31 would cause the springs 16 to become unduly distorted when the device is in use, because of the play of the hangers 11 and bolster.

When one of my improved trucks, made as above described, is in use, the load on the bolster is transmitted to the springs 16 and from thence to the'springs 12 and thence to the hangers 11. When there is any shifting due to irregularities in the track or load, there is no tendency on the part of the bolster to unevenly twist the spring 16, because the bars 31 force the spring 12, 16, to remain in parallel relation with each other and in proper relation to the bolster 18.

As above stated, the particular combination of the leaf spring and superposed spiral spring entering into the support of the bolster is advantageous; but for the full realization of all the benefits that I desire to secure from the construction described, I prefer to so design the spiral springs 16 that they will normally support the load of the car body and seated passengers, or a normal car-load, without undue settling, leaving a sufficient range of release or expansion in them to accommodate variations in the excess of the above load. The reason for doing this is that the capacity and resiliency of these springs, as spiral springs, will be present under all conditions of normal load. In order to avoid the possibility of these springs going solid under the existence of excessive load, they are so arranged that the spring seat 17 may come into contact with the seat 14, under an excess load which will relieve the spiral springs of the .excess of the load, which will then be borne by the slower acting leaf spring 12. When this happens, the coils of the springs 16, as designed, are not closed. If the coils came together solid, there would be a tendency for the springs to *3 crystallize and break; Whereas, by so a portion ing their range of compression wit the ran'ge of movement between the two spring seats that the latter will come together and bear the excess of the load, before the springs have becomesolid, the designed capacity of these springs is retained and their capacity for coming back into the above duty automatically arranged for. I believe this arrangement to be entirely new and, therefore, do not limit myself to the exact details of construction or combination of elements shown and described herein.

While I have shown and described one embodiment of my invention, 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.

What I claim is: k

1. In a car truck, the combination with a truckframe, paired bolster-supports at each side of the truck and carried by the by the hangers, spiral springs mounted on I said leaf springs, and a bolster supported on said spiral springs.

3. In a car truck, the combination with a truck frame having side bars, hangers thereon, longitudinally disposed leaf springs supported from the side bars by the hangers, springs on the leaf springs and a bolster supported on the latter springs.

1. Ina car truck, thecomblnation with a truck frame having side bars, hangers thereon, leaf springs supported by the hangers and longitudinally disposed with their arch upward, springs on the arch of the leaf springs, and a bolster supported onthelatter springs.

5. In a car truck, the combination with a truck frame having side bars, hangers thereon, longitudinally disposed leaf springs supported by the hangers from the side bars, spiral springs on the leaf springs and a bolster supported on said spiral springs.

6. In a car truck, the combination with a truck frame, hangers, leaf springs carried adapted to carry a predetermined load and load without closing the bolster and leaf the excess of said yield to an excessive and means carried by springs for taking up .load.

9. In a car truck, the combination with a truck frame, hangers thereon, longitudinally disposed leaf springs supported by the hangers, spiral springs supported upon the crowns of said leaf springs, a cross truck bolster supported on said spiral springs and means combined with the leaf springs and bolster for taking up the excess load imposed on the spiral springs. 10. In a'car truck, the combination with a truck frame, bolster-supports carried by the truck frame, springs supported by said bolster supports, springs mounted on said first mentioned springs, a bolster supported on the latter springs, and means for movably securing the bolster and the first mentioned springs together and restraining them from transverse displacement while permitting a relative movement between the bolster and said first mentioned springs in a plane perpendicular to the longitudinal axis of the bolster.

11. In a car truck, the combination with a truck frame, hangers thereon, longitudinally disposed leaf springs carried by the hangers spring seats on the crowns of the lea springs, spiral springs seated in said seats,- a cross bolster, spring seats thereon for receiving the spiral springs, and means for movably connecting the leaf springseats and bolster spring seats.

12. in a car truck, longitudinally disposed leaf springs, hangers supporting the same, means for supporting the hangers, a cross bolster, spring seats on the leaf springs, means for movably connecting the bolster and spring seats together and other springs interposed between the bolster and said spring seats.

13. In a car truck, the combination with a truck frame, hangers, longitudinally disposed leaf springs supported on the hangers, spring seats on the leaf springs, a bolster, articulated devices connecting the bolster and spring seats and springs interposed between the spring seats and the bolster.

l l. in a device of the class described, splayed links and means for supporting the same, leaf springs connecting some of id of said seats, a coile links, a bolster, springs between said bolster and the leafsprings, and means connecting said bolster and leaf springs whereby said springs are prevented from approaching each other.

15. In a device of the class described, splayed links and means for supporting the same, leaf springs connecting said links, spring seats onsaid springs, a coiled spring on each of said seats, a bolster supported bysaid coiled springs, and means connectin said bolster and leaf springs, so that sai leaf springs are prevented from approaching each other.

. 16. In a device of the class described, a leaf spring, a bolster, and a bar connecting said spring and bolster so that said leaf spring is prevented from approaching the center of the bolster.

17. lin a device of the class described, splayed links and means for supporting ,the same, leaf springs connecting said links, bands on said springs, a spring seat on each of said bands, a lu extending from each spring on each of said seats, a bolster supported by said; coiled springs, and bars connecting said bolster with a pivotal connection with said first mentioned seat so that said leaf springs are prevented from swinging toward each other,

and the links or hangers are held in a splayed position. I 18. lln a device of the class described, splayed links and means for supporting the same, leaf springs connecting said' links, bands on said leaf springs, spring seats on said bands, a coiled spring on each of said seats and a bolster supported by said coiled springs, and means connecting said bolster and leaf springs so that the coiled springs are kept from undue stresses when the device is in use.

19. lfn a device of the class described, a bolster with a downwardly dependin lug, a spring seat with a laterally and ra ially extending lug, a bar connecting said lugs and bolts passin through said lugs and bar.

90. In a device of the class described, a pairof' splayed links and means for supporting the same, a leaf spring connecting said links, a bolster, a coiled spring carried by said leaf spring and supporting one end of said bolster, and means for preventing said coiled spring from being twisted when the device is in use.

Signed at the city of Philadelphia, county of Philadelphia, and State of Pennsylvania,

Witnesses H. 19. McKinnrr,

HENRY (1- Examine.

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