US1070325A - Car-truck. - Google Patents

Description

C. J. W. GLASEN.

' GAR TRUCK.

APPLICA AYB, 1913. 1,070,325, Patented Aug. 12,1918.

.. 3 EEEEEEEEEEEE 1.

//ifnesea y .KW f/@W Q M.

- /Zfforney C. J. W. GLASEN.

CAR TRUCK.

APPLICATION FILED MAY 8, 191s 1,070,325, i Patented Aug.`12, 1913.

3 SHEETS-SHEET 2 C. J. W. CLASEN.

GAR TRUCK.

1913. 1,070,325, Patented Aug.12,1913.

fmfenfozf.

f @Img/@Sent /zver/q@./f\

forney- UNITED sTATns PATENT OFFICE.'

CLAUS J. WERNER CLASEN, OE DAVENPORT, IOWA, ASSIGNOR TO THE BETTENDORF .COMPANYQ OF BETTEVNDORF, IOWA, A CORPORATION F IOWA.

CAR-TRUCK.

1 070,32 Specification of Letters Patent. Patented Aug, v12a 19,13,

Application tiled May 8, 1913. Serial No. 766,278.

To all lwhom it mag/ concern Be it known that I, CLAUS J. IVERNER CLAsnN, a citizen of the United States of America, and resident of Davenport, Iowa, have invented a certainnew and useful Improvement in Car-Trucks, of which the following is a specification.

My invention relates to improvements in trucks for railway cars and especially to that type of trucks in which the side frames'lncluding the top and bottom arch bars, columns and'journal boxes are made of a single integral piece, and is directed more particularly to the manner of connecting the bolster to the truck frames with the view of greatly increasing the carrying capacity of the truck as a whole, without materially increasing the size or weight of its component parts. U

.The primary objectof my invention is to provide means whereby the superimposed loadv is carried by the truck frames at points widely separated and at adistance from the center thereof, Where'it Iis usuallycarried. vAnother object is to dispense with the usual spring plank and provide a truck wherein its component parts are held in proper and operative relation without the use of bolts or rivets.

There are other objects which as will hereinafter appear are attained by the structure illustrated in the accompaning drawings, in which Figu're l is a perspective view of the truck, lessythe wheels and axles, with my improvements in place. front elevation vof improved t-ruck side frame. plan view thereof.

Fig. 4. isa plan view of the truck bolster.

Fig. 5. is a side elevation thereof. Figs. 6 and 7, 8 and 9 are side and end. views of detail parts. Fig."l0

is a perspective 'vi'ew` of the truck showing my invent-ion ina modified form.

Similar numerals refer to similar parts throughout the several views.

In the drawings l indicates the side frames which are preferably vmade of cast steel and provided .with boxes 2 and columns 3. These columns together Wit-h the top and bottom members of the side frame form the rectangular bolster' opening 3*1 for the reception of the 'ends of the bolster et which of castl steel and providedwith the'usual :at each end, forward Fig. 2. Ais aa preferred .form ofny Fig. 3. is av ynear the axles.

integral4 journal is also preferably made center bearing 4a and side bearings 4b. The bolster is also provided with the rectangular transverse slots 5 near each end. wall of these slots beingrounded as shown ata. These slots are. engaged by the bolster carriers or slings 6 and 6a which pass through them, their upper edge being struck on a circle coinciding with the convex surface 51 slings are four in number, two at each end of the bolster, one passing through the bolster forward of the side frame one aft thereof. Formed integral with the lower arch b ar of the side frame, ata distance from each side of the bolster opening are the spring pockets 7, in which are located the bolster springs 8. Fitted over the upper end of the springs are the spring caps 9 provided with the laterally extending trunnions l0 forming supports for and engaging the outerends of the bolster slings 6 and 611. The trunnions l() may be made integralpwith the spring cap 9 or a removable pin may be used.

As is clearly shown in the drawings the bolster is passed through the bolster opening in the side frames position its ends extend suiliciently beyond each side frame to bring one of the slots 5 of the side frame and thereof, so'that when and 6a are passed the other to the rear the bolster slings 6 through the openings trunnion 10, they closely embrace the ,front and vrear sides of the truck side framesV locking the bolster againstv longitudinal movement, therev performing" the function of the usual bolster guilde lugs 'and making unnecessary the use of the usual spring plank.

The upper' or convex forming a bearing. These and when in proper 5 and hungon the Hanging the bolster'in thismanner on the bolster slings, the entire weight 0f the superimposed load is transferred from the ,center of the truck frames (where it usually is carried) to points widely separated and The maximum carrying capacity.` of a truck frame is' thus y greatly increased withoutimaterially and proportionately increasing the size of the parts.`

lThe present maximum carrying'capacit;r of freightl car trucks is 50 tons. the growing demand for 60 andv l 70 tor. trucks, the common practlcewould be that and consequently the size of the truck gen- Tor meet i .of simply increasing the size of the parts erally, in doing which, however, the M. C. B. regulations regarding center plate height and coupler height would be violated. Therefore to preserve the M. C. B. requirements and yet use springs of 70 ton capacity (which must be much larger and heavier than the former ton springs) and not approach the rails closer With't-he lower side of the truck frame, nor the car body with the upper side, the novelty and utility of my method of transferring the load to pointsdistant from the center of the truck frame becomes apparent. By locating the springs in the special spring pockets near the axles a" much larger and heavier spring can he used. It would be impossible to use the same size spring under the bolster at the. center of the truck :frame Without greatly increasing the height and size of the frame. j

Fig. 10 shows a modified form of construction. in which, instead of passing the holster slings or carriers through the bolster they may be made to' pass under it as shown at 12. When constructed in this manner stop lugs 13 and 13 would be provided on the underside of the bolster, engaging the outer surface of the slings or carriers thus locking the bolster against longitudinal movement.

It is to be understood that side frames with removable journal boxes as Well as integral boxes could be employed Without departing from the spirit of my invention.

What. I claim as new is- 1. In a car truck, the combination with side frames, each having a bolster opening mediate the ends thereof; a bolster the ends of which extend through said openings; bolster springs seated -in said side frames on each side of said opening; bolster carrying members supported by said springs and directly engaging said bolster and adapted to form the sole support of the bolster and its superimposed load in said openings.

2. In a car truck, the Vcombination With side frames, each having a bolster opening mediate the ends thereof; a bolster, the ends` of which extend through said openings; bolster springs seated in said side frames on ,each side of said openings; combined, sole load carrying and bolster controlling members supported by said springs and directly engaging theends of said bolster.

3. In a car truck,the combination with side frames, each having a'bolster Opening mediate their ends, a bolster extending through said openings, and means yieldingly supported by the side frame at points distant from said opening adapted to lock said side frames in operative position.

4f. In a car truck, the combination with side frames, each having journal `boxes at the ends thereof; a bolster opening mediate said journal boxes; load carrying .springs applied tothe said side frames at each side of said opening; bolster supporting and guiding bars directly engaging the bolster and resting on said load carrying springs; a bolster, the ends of which pass through said bolster openings, said supporting bars in conjunction With said bolster adapted to lock said side frames in operative relation.

5. In a ear truck, the combination with side frames each having journal boxes at the ends thereof; a bolster o ening mediate said journal boxes; a pair o load carrying springs on each side of said opening arranged longitudinally of the side frame in the plane of the web thereof; springs caps on said springs provided With'laterally extending trunnions; pairs of bolster supporting and guiding bars supported at their ends by said trunnions and on both sides of said side frames; a bolsterguided by and locked in operative relation to the side frames by said bars.

6. In a car truck, the combination With side frames each having a bolster opening therein; spring seats in said side frame on each side of said opening; springs on said spring seats, a bolster, the ends of Which extend through and beyond said openings; pairs of bolster carriers supported by said springs and directly engaging the ends et said bolster-fore and aft the side frames.

7. In a car truck, the combination with side frames each having a bolster opening therein; a'bolster, the ends of which pass through and beyond said opening, lateral slots throu h the ends of said bolster fore and aft o the side frames and adjacent thereto; means passing through said slots

Images