US1096341A - Car-truck. - Google Patents

Description

W. S. ADAMS 6:: A. F. H. HEAD.

GAR TRUCK. I APPLICATION FILED FEB. 13, 1911. RENEWED JAN. 5, 1914.

Patented May 12, 1914.

5 BHEETB-SHEBT 1.

71 mix/(M11119 W. S. ADAMS & A. F. H. HEAD.

GAR TRUCK. APPLIOATION FILED FEB. 13, 1911. RENEWED JAN. 5, 1914.

1,096,341.. Patented May 12, 1914.

5 SHEETS-SHEET 2.

W. s. ADAMS & A. F. H. HEAD.

GAR TRUCK. APPLICATION FILED iEB. 13, 1911. RENEWED JAN. 6, 1914.

Patented May 12, 1914.

5 SHEBTS-SHBET 3.

W. S. ADAMS & A. F. H. HEAD.

GAR TRUCK. APPLICATION FILED 123.13, 1911. RENEWED JAN. 6. 1914.

1 ,O96,341 Patented May 12,1914.

5 SHEETS-BHEBT 4.

3 n-uc n fou W. S. ADAMS & A. F. H. HEAD.

OAR TRUCK. APPLICATION FILED FEB.13,1911. RENEWED JAN,5,1914.

4 -Nv mwm ys n m m m P 6 i 7 2 A II. .r f 1:5 1% V 3 z Z f W U L 4 3, mm 5 0 A A1 I n i i Witnesses:

UNITED STATES PATENT OFFICE.

WALTER S. ADAMS AND ARTHUR F. H. HEAD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNORS TO THE J. G. BRILL COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A

CORPORATION OF PENNSYLVANIA.

CAR-TRUCK.

Specification of Letters Patent.

Patented May 12, 1914.

Application filed February 13, 1911, Serial No. 608,287. Renewed January 5', 1914. Serial No. 810,513.

1 '0 all whom it may concern:

Be it known that we, WALTER S. ADAMS and ARTHUR F. H. HEAD, a citizen of the United States and a subject of the King of Great Britain, respectively, and both residents ot' the city and county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Cl1-'PI11CkS, of which the following is a specification.

Heretofore cars have been carried by trucks mounted so as to radiate thereunder when passing around a curve, the trucks being known as bogies and being pivotally connected with said car. This is a common practice where large cars are employed. As a rule this practice requires two trucks of four wheels each. It has also been common to mount a shorter car on a single truck which is fixed thereto. The usual practice is to have an axle-box mounted in pedestals so as to have a vertical movement only with regard to the truck frame. The disadvantage of this system is that it requires the wheel-base to be short so that the car may take a curve and remain on the track.

The object of our invention is to provide a truck for each end of a car which is fixed thereto but provided with flexible connections between the car-body and axle-box so that a car-body of intermediate length may be carried and the axles may radiate sufficiently to permit the car to take the usual curves. Obviously, this truck is not applicable to cars of excessive length for the reason'that the axles cannot radiate sufficiently and for the additional reason that an excessive weight on two axles is inconsistent with good practice. However, for cars which are too long for fixed trucks and too short for ordinary four-wheel bo-gies, there is a demand for the trucks made as hereinafter described and claimed. This demand is met by our improved truck of which the following is a specification.

For the purposes of illustration and description only one of a pair of trucks is shown anddescribed, it being understood that the said trucks are used in pairs, one at each end of a car-body;

For a more particular description of our invention, reference is to be had to the accompanying drawing, forming a part hereof, in which Figure 1 is a side elevation showing one of our improved trucks and a portion of a car-body, and some connecting parts. Fig. 2 is a plan view of the structure shown in Fig. 1 parts being omitted to avoid duplication. Fig. 3 is a view taken at right angles to Fig. 1 to show a portion of the spring system. Fig. 4 is a side elevation partially in section, showing one of our improved trucks. Figs. 5, 6 and 7 show details of a modified structure, Fig. 6 being a sectional view taken on the line 6-6 of Fig. 5 looking in the direction of the arrows, and Fig. 7 being an inverted plan view of the spring and link connections shown in Fig. 5. Fi 8 is a plan view of a portion of the truer shown in Fig. 4, parts being shown in section to more clearly reveal the structure. Figs. 9 and 10 are sectional views of the lower end of the spring posts, Fig. 9 being taken on the line 9-9 of Fig. 10, and Fig. 10 being taken on the line 1010 of Fig. 9, looking in the direction of the arrows. Fig. 11 is an end elevation showing modified forms of springs, the full line showing one form and the dotted lines another. Fig. 12 is a side elevation, partially in section of a further modification. The structure is similar to that shown in Fig. 4. Figs. 13 and 14 are views of a modification, Fig. 13 being a sectional view taken on the median line of the car and Fig. 14 being a sectional view taken on the line 14.--14 of Fig. 13, looking in the direction of the arrows.

Throughout the various views of the drawings. similar reference characters designate similar parts.

Our improved truck 1 is provided with a substantially rectangular .frame 2, carwheels 3 and an axle 4, as well as springs 5 and 6 which support the car-body 7.

The wheels 3 and axles 4 are of the conventional kind so that no description of them is necessary. The axle box 8 at each end of said axle 4 is the same as in our application No. 581,382. filed September 10th, 1910. and is provided with laterally extend ing cars 9 on which are Inlllll springs 10 surmounted by caps 11 and from the caps 11 hang the spring-posts 152 as therein set forth.

The lower ends' of these posts 12 pass through the side frame 13 of the frame 2 which is perforated and enlarged for this purpose. The lower ends of the posts 12 are connected to the side frames 13, as set forth in said application, so that the axis of the pivots 14 at the lower ends of these posts, point toward the king-bolt 15 which is secured to the car-body 7 and suitably braced by bracings 16 as shown. This bracing may be extended to another kin -bolt, not shown, where a rigid connection is desired.

The outer crossing 17 of the frame 2 carries an elliptic spring 5 which supports the ear-body on its center 18. The springs 6 which are coiled springs, are on side frames 13 and carry the car-body so that each truck 1 carries the ear-body from three points and the frame 2'always remains so that it does not radiate with regard to the car-body, and, if desired, the springs may be connected to the car-body the same as the truck.

The precise manner in which the springs 5 and 6 are secured to the frame 2 is not material provided it is sufiieient. In the embodiment of our invention shown, the spring 5 is secured by bolts 19 as shown and the spring 6 is on a seat 20 and mounted by a cap 21;

The king bolt 15' is provided with a suitable slide, 23, on which are laterally extending lugs or trunnions, 24, pivotally connect ed to a. bracket, 25, that is fixed to the L-shaped plates, 26. These plates are rigidly attached to end crossing, 28, of the truck frame and act as supports for pivot pin, 23. This pivot pin 23, supports, preferably through a universal joint, suitable cross bars, 29 and 30, which are fixed to a motor casing 31, which is sleeved on the axle in the conventional manner, and these bars, 29 and 30,

support at their outer ends, suitable brackets 32, from which the brake mechanism may be suspended. By means of this construction the accelerating or retarding efforts of the wheels are communicated through the motor casing to the king pin without passing. through the frame of the truck.

The precise manner in which the side frames 13 are secured to the crossings 17 and 28 is' not material provided that it is sufficient. The crossings are referably I beams which are bolted to the si e frames.

From the foregoing the operation of our improved trucks will be readily understood; when the car carried by them runs on a straight track the axles 4 will remain parallel; when the car takes a curve the axles 4 will radiate about the pivot 33 as a center, the frame 13 remaining in its normal position with regard to the car-body and the spring posts 12 are shifted from a vertical position so that the entire weight of the car body is borne by one or the other of the pivots 14 at the lower end of each post, but not by surmounted by caps 11.

vided with suitable cups on their upper surfaces to support coiled springs 10 which are Each cap is provided with a socket at its upper surface in which fits the ball end 39 of a spring-post 12 and the post hangs from said ball and passes through a coiled spring and a perforation 37 and extends downwardly through a suitable perforation in a yoke-bar 40 of the frame 41 of the truck 35. The lower end of each post 12 is bifurcated and provided with transverse pins 42 (see Figs. 9 and 10) that support a small bar 43 which has trunnions 44 at each end and these trunnions 44 engage suitable bearings 45 which are preferably formed integral with the yoke-bar 40. These bearings 45 are so placed that they are concentric with the king-bolt as will appear below.

The frame 41 is upwardly bent at 46 to form a guide for theguide castings 47 which are fixed to a bar 48 that is adapted to be bolted to the sills of the, car to which the truck 35 is attached. The bar 48 is supported from the frame 41 by suitable springs 49 and 50 which may be of any suitable form, size or shape. It is not material just 110w they are formed or where they are placed provided they are sufiicient as in any event, they will act together so as to produce the same effect that they would produce if they were located immediately above the axle, and were supported in such a way as not to interfere with the radiation of the axle, as will appear below.

In Fig. 11 a modified spring system is shown wherein elliptic springs 51 or downwardly arched semi-elliptic springs 52 are placed on suitable crossings 53 in front and rear-of the axle 4. If desired, these springs may be secured to the car-body. One of the crossings 53 is connected to the motor casing 54 by means of a suitable king-bolt 55 and the parts connected therewith. In the embodiment shown in Figs. 4 and 8 the crossing,

trunnions 59 which are in turn supported by suitable blocks 60 that are fixed in between cross-bars 61 which are in turn fixed tothe motor caslng 54 by means of suitable brackets 62. The brake-rigging is also carried by the bars 61 and is mounted therefrom in any suitable manner. This rigging is designated generically by the character 63.

The structure shown in Fig. 12 differs from that above described in that the yoke 40 is omitted and the side frame 64 instead of passing over the axle-box and axle passes under the same and the bearings 45 are placed thereunder as above described. The other parts are substantially the same except that the guide casings 47 rub against projections 65 made for the purpose, instead of the bent portion 46.

In Figs. 5, 6 and 7 is shown a further modification. Here the side frames are done away with entirely, and insteadthereof are placed suitable projections 66 which extend downwardly from a car-body A and which are rigidly fixed to the sills thereof. These projections 66 are united by suitable leafsprings 67 which have suitable seats 68 corresponding to the seats 45 secured thereto as indicated in Figs. 6 and 7, that is by means of a suitable perforated plate 69 as shown. The spring-posts 12 and axle-box 8 with the trunnions thereon are all as above described. When this structure is employed it is necessary to carry the kingbolt from the car-body and this is done by means of a suitable bracket 7 O which may be of any suitable form and which carries the king-bolt 71. and on this king-bolt 71 are coiled springs 7 2 and 7 3 and between these coiled springs is placed a suitable slide 74 that is fixed to brackets 75 on the motor casing 54 which are sleeved on the axle 4 in the usual manner so that this axle can radiate about the king-bolt 71, the upper end of the king-bolt passes through a suitable socket 76 fixed to a crossing 71 on the under side of a car-body. In the preferred structure, the frame 7 0 is braced and connects one king-bolt with the other, but this is not essential as it may be secured to the car-body in any other way if desired. vThis method of carrying the king-bolt may be used in conjunction with the form of construction shown in Fig. 12.

It is obvious that various other embodiments of our invention may be made all of which come within the scope of the annexed claims.

llaving described our invention, what we claim is:

1. In a device of the class described, a carbody, a frame, an axle, wheels, axle-boxes, king-bolt, connections between said bolt and axle whereby said axle may radiate about said king bolt attached to said car-body and connections between said axle-boxes and frame which permit sueh'radiation but op pose it with the entire weight of the car car- 2. In a device of the class described, a carbody, a king-bolt fixed to said car-body, an

axle, wheels on said axle, a motor casing sleeved on said axle and connected to said king-bolt whereby said axle can radiate about said king-bolt as a center, axle boxes, laterally extending ears running from said axle-boxes, coiled springs on said ears, caps on said springs, posts suspended from said caps with laterally extending pivots at their lower ends, a frame carried by said pivots and springs between said frame and carbody.

3. In a device of the class described a car provided at each end with a truck composed of a single-axle, a pair of wheels mounted thereon, axle-boxes carried by said axle, springs carried by said axle-boxes, a frame supported by said springs with a flexible connection, a king-bolt and connections between said axle and king-bolt whereby said axle can radiate in said frame, springs, guides and a bar resting on said springs and connected to said frame by said guides and adapted to be fixed to a car-body.

4. In a device of the class described, a car-body with a pair of trucks, each composed of a single axle with wheels mounted thereon, axle boxes mounted on said axle, a pair of springs on each of said axle boxes, a truck frame flexible connections between said frame and springs whereby said springs carry the weight of the frame and load thereon, a king-bolt secured to said frame and also connected with said axle whereby said axle can radiate in said frame, springs carried by said frame, guides, a top-bar fixed to said guides and resting on said springs and adapted to be secured to the sills of the car-body whereby the frame has a vertical movement only with regard to said car-body and said axle may radiate under said car-body when passing around a curve.

5. In a device of the class described, a carbody with a pair of trucks, each composed of an axle, wheels mounted on said axle, axlerboxcs mounted on said axle, laterally extending ears running from said axleboxes, springs mounted on said ears, caps on said springs, posts supported by said caps, connections between said posts and frame, a king-bolt, connections between said axle and king-bolt so that said axle may radiate about said king-bolt as a center and connections between said frame and posts so that the lower ends of said posts have unstable connection with said frame.

6. In a device of the class described, a car-body with a pair of trucks, each composed of an axle, wheels carried by said axle, axle-boxes carried by said axle, laterally extending ears running from said axlebox, coiled springs carried by said ears, caps on said springs, posts suspended from said caps and running through said springs and ears, laterally extending trunnions near the lower ends of said posts, bearings engaging said trunnions concentric with the kingbolt, a frame, a king-bolt carried by said frame, flexible connections between said king-bolt and axle and means for supporta ing the car body carried by said frame so that said frame will have a ertical move ment only with regard to said car body and said axle may radiate when going around curves.

7. In a device'of the class described, an axle, wheels mounted thereon, axle-boxes carried by said axle, a truck frame, flexible connections between said axle-box and frame, springs on the crossings of said frame and means for supporting a car-body from said springs and over said frame.

8. In a device of the class described, an axle, wheels mounted thereon, axle boxes mounted on said axle, laterally extending guides on each side of said axle-boxes adapted to engage sliding parts secured to a bar.

9. In a truck of the class described, a car body, a king-bolt attached thereto, an axle with a pair of wheels mounted thereon, a motor casing sleeved on said axle with its other end supported by said king pin, and means to allow said axle to radiate, whereby the horizontal forces developed by the wheels resting on the rails is communicated to the car body without passing through the truck frame.

WALTER s. ADAMS. ARTHUR F. H. HEAD.

Witnesses:

WM. R. MARTIN, HARRY F, MCKILLIP.

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