US993083A - Car-truck. - Google Patents

Description

c. A. LINDSTRM.

GAR TRUCK,

APPLIUATION FILED r1:11.4.1911.

101 lllilllll c. A. LINDSTR'O'M.

GAR TRUGK. I APPLICATION FILED FIIBA, 19H.

Patented May 23, 191] 3 BHEETB-SHEET Z.

witnmeo C. A. LINDSTRM.

GAR TRUCK.

APPIJGATION FILED rEB.4,1911.

Patented May 23, 1911.

3 SHEETS-SHEET 3.

UNTED STATES PATENT OFFTCE.

CHARLES A. LINDSTRM, F PITTSBURG, ENNSYLVANIA, ASSIGNOR TO PRESSED STEEL CAR COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION O F NEW JERSEY.

CAR-TRUCK.

Specication of Letters Patent.

`Patented May M, 1911.

Application tiled February 4, 1911. Serial No. 606,513.

To oZZ 'whom it may concern.:

Be it known "that I, Quilmes LIND- s'rnM, a citizen oli the lilnited States, residing at No. 13S Stratford avenue, Pittsburg, E. ll., in the county otl A\llegheny and State of lennsvlvania, have invented certain new and use/ful Tniproveulcnts in Car- Trucks, ot' which the following is a specification.

My 'invention relates to railway car trucks but more 'particularly to trucks of the type in Which the bolster is swingingly supported as by means o'lE links, hails, or the like, whereby the holsters and car body have a limited sidewise swing or movement laterally of thc car when it passies around a curve 'or over an uneven portion olI the tracks.

The principal object et my present'invention is to modify the usual and customary construction so as to .facilitate the removal of the bolster and other parts.

Heretofore the bolster has generally been supported'directly by the truck side :t'ranjies or transoms by means ot' links`or the like., connected 'to the side frames or transoms and also to the bolster by means of pin or bolt connections, and an object of `my invention is to dispense with said pin or bolt connections, thus reducing the number of loose parts, the liability of these parts to work out of place and get lost, and also in a reduction of cost of manufacture of such trucks.

In the accompanying. drawings, forming a part of this specitication, and in which like reference characters indicate 'like parts throughout the several Iignres, I have illustrated the application of my invention to a truck of what is known as the Forl type.

Referring to the drawings: Figure 1- is a side elevation of a car truck in which my-invention is embodied. Fig. 2 shows in the left hand halt un end elevation, and in the right hand half a vertical section, takenat la point midway between the transoms, the

l adapted to support the springs, and also cngagethe lower ends ot the hanger arms.

In the construction i1lust1rated,1 indicates` the side "trame et' the truck, formed ot. pressed steel, having a central opening for the accommoiflz'xtion oli the projecting ends ot the springs 3, which support the bolster 4, and openings 5 'lfor the accommodation o the pedcstals t3, t5. The side trames 1, are connected together' at the required distance apart by transoms 7, 7, which are illustrated as flanged members formed of pressed steel. Y t

S designates thc springplank, and t), t) the spring plank end castinf-,s attached thereto and illustrated in detail in Figs. 8, t) and l0. The .spring plank is swingingly supported .by the hanger arms 1.0, which are provided "at both thclr upper and lower ends with laterally projecting pivot bosses 11, ot the saine dimensions, which seat. in the concave recesses in castings shown in Figs. 5-10. At the outer ends of the projecting pivot bosses are projecting lips 1Q, which when in position extend beyond the concave recesses in the said castings, and serve to prevent the portions 1l from becoming displaced froin their respective recesses. These pivot bosses provide for the suspension of the spring plank and spring scat end castings in such a manner as to permit the members-to swing transversely of the truck side frames in order that the truck bolster, which is supported above the spring seats on the springs 3, may artake of a lateral swinging motion relative to the truck ot' which it forms a part.

The projecting pivot bosses 11, of the so called hanger arms 10, are so shaped that when they are seated in the recessed bearings 13, in castings 24, the hanger is capable of a certain amount ,of swinging motion. "hese castings are formed with a flat portion 14 and topiiange 15, for the purpose of [attachment to the transoms 7, arcuate beared to be secured to the end of the spring plank 8.

From the foregoing description it will be understood that the endsiand projecting pivot bosses of the hangenanms l are alike and that the whole hanger arm is reversible end for end. l

It is evident that many changes might be resorted to in the relative arrangement of parts shown and described without departing from the spirit and scopenf my invention; "hence, I would have it understood that I do not wish to @online myself to the exact construction and arrangement of parts shown, but,

Having fully described my invention what I claiih as neuw and desire to secure by Letters Patent is Y l. An integral hanger arm for swing niotion trucks provided with projecting pivot bosses, and lips thereon to prevent displacement from their bearing supports; substantially as described. g

Q. An integral hanger arm for swing motion trucks consisting of a vertical portion, projecting pivot bosses at each end and on opposite sides thercot, and lips on the pivot bosses to prevent displacement from their bearings; substantially as described.

3. In a. car truck,.the combination with reversible Z shaped hanger arms pivotally connected to the transoms thereof, of a spring plank supported by said hanger arms for endwise movement: transversely of the truck; substantially as described.

4. In a car truck, the combination with reversible Z shaped hanger arms pivotally connected at their upper ends to the transoms thereof, and a- Sprin plank pivotally vconnected to the low-er en s of said hanger arms, of a truck bolster, and springs interposed between said truck bolster and spring plank, whereby said truck bolster is supported with freedom for limited en'dwise movement transversely of the truck.

5. In a car truck, reversible Z shaped' hanger arms pivoted thereto, a spring plank supported by said hanger arms, springs supported by said spring plank, and a bolster

Images