US805947A - Car part. - Google Patents

Description

.PATENTED NOV. 28, 1905.

" B. I. DODDS.

YG'AR PART.

APPL IUATION FILED PI 1B- 23. 1904.

l VNT OR I UNITED STATES PATENT OFFICE.

ETHAN I. DODDS, OF AVALON, PENNSYLVANIA, ASSIGNOR TO PRESSED STEEL OAR COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORA- TION OF NEW JERSEY.

Specification of Letters Patent.

CAR PART.

Patented Nov. 28, 1905.

Application filed February 23, 1904:- Serial No. 194,645-

To will whom it may concern.-

'Be it known that I, ETHAN I. DODDS, of Avalon, Alle heny county, Pennsylvania, have invente a new and useful Improvement in Car Parts, of which the following is a full, clear, and exact description, reference being had to the accom anying drawings, forming part of this spec-i cation, in which' Figure 1 shows a blank from which a bolster is made in accordance with my invention. Fig. 2 is a longitudinal section showing the bolster, the section being'on the line II II of Fig. .3. Fig. 3 is a plan'view of the bolster. the line IV IV of Fig. 3, but on a larger scale. Fig. 5 is a similar section illustrating a modification, and Fi 6 is a side elevation of a modification of ig. 3.

The pur ose of my invention is to provide a truck-b0 ster having great strength in proportion to its weight, which can be made cheaply, and with a minimum waste of metal. In'Fig. 1 I show the blank 2 fromflwhich the bolster is made. It is a flanged beamsection, either an I -beam or a channel,- beam, preferably a channel, which is slit along the web by two cuts 1) I), thus dividing the flanged blank into three membersnamely, a middle or tension member 3 and two com ress on members 4 4, which have along thelr outer edges the original flanges of the channel-section. Then by means of suitable dies I press the middlemember 3 inone direction and the two outer flanged mem-,

bers 4 4 in the opposite direction, thus bringing the blank into the condition shown in Fig. v2 and making the frame or body of the bolster. The bolster thus constituted is strengthened by the interposition of a suitable strut or member 5 between the members 4 4 and the middle member 3, and the member 3 is reinforced and strengthened by applying to it reinforcing angle-pieces 6 6, as

shown in Fig. 4, thus imparting to it great rigidity and strength. The members 4 4 may be further strengthened by a tielate 7, extending from end to end of the b0 ster, as

shown in Figs. 4 and 6.

Fig. 4 is a vertical cross-section on' In Figs. 2, 3, 4, and 6 I show the bolster made with the original flanges 8 8 of the blank directed inwardly toward ,the member 3. The dies, however, may be constructed to press the member 3 in the opposite direction, and thus to leave the original flanges 8 8 of the blank outwardly directed, as in Fig. 5.

Instead of the reinforcing-angles 6 6 (shown in Fig. 4) I may employ the reinforcing channelsection 6 along the outer face of the member. 3. This reinforcing-channel 6 may be either pressed or rolled, as desired. 1

The skilled car constructor will be able to modify the construction of the bolster in many ways without departing fromthe princi le of my invention, since What I claim is 1. A bolster comprising outer members havin rolled flanges in a lurality of planes at ang es to each other and a middle member bent away from said outer members; substantially as described.

2. A bolster comprising outer members having lateral flanges for the attachment of a strut, a middle member bent away from two members, said middle member being reinforced by an lattached flange or flanges; substantially as described.

4. A bolster having two members, the outer edges of which have rolled flanges, and a middle member bent away from said two members, said middle member being reinforced by an attached flange or flanges, and

connected with the other -members by a strut; substantially as described.

In testimony whereof I have hereunto set my hand February 20, 1904.

1 ETHAN I. DODDS.

Witnesses JOHN MILLER, I-I. M.'O0RWIN.

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