US703993A - Bolster. - Google Patents

Description

No. 703,993. Patented July s, |902. E. cAnLsoN & FERME, BOLSTER.

(Application filed Mar. 7, 1002.)

(No Modal.)

UNITED STATES PATENT OFFICE..

EDWARD CARLSON AND PERRIE, OF CHICAGO, ILLINOIS.

BOLSTER.

SPECIFICATION forming part of Letters Patent No. 703,993, dated July 8, 1902.

Application iiled March 7, 1902. Serial No. 97,150. (No-model.)

T0 @ZZ whom it may concern,.-

Beit known that we, EDWARD CARLSON and JAMES PERRIE, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and usefnllmprovements in Bolsterspf which the following is a description.

Our invention relates to bolsters, both car and truck holsters as to general characteristics and to truck-holsters as to certain hereinafter-described special characteristics.

The object of such invention is to provide a bolster simple in construction, having lightness commensurate with great strength, and capable of ready assembling and of convenient repairing, all of which advantages and points of utility will be apparent from the description hereinafter given.

In the accompanying drawings, Figure l is a side elevation of a truck and car or body bolster with a portion thereof broken away to illustrate certain features of our invention; Fig. 2, aplan view of the truck-bolster; Fig. 3, a perspective of one end ofthe lower or tension member of the truck-bolster, illustrating the manner of gibbing both web and ilanges of the channel-bars Vand-Fig. 4,a fragmentary view of a bolster, illustrating a modied form of construction. f

Describing first the truck-bolster, 'the same comprises in general terms the compression member, tension' member, side plates, and the central support or post. The compression and tension members are made from channel-bars, which in the instance shown i-n Fig. 1 are arranged web to web, with their flanges directed away from each other, while in Fig. 4E the flanges are directed in the same direction. The compression member has a web 1 and iianges 2, and the tension member has a web 3 and flanges 4, a suitable central support or post 'being arranged betweensaid members. Suitable side plates 6 are riveted or otherwise secured along the sides of such members. The usual column-plates 7 `are also riveted to the sides thereof'. The side plates 6 are desirable, but might in some instances be dispensed with. By preference the webs of the compression and tension members are brought together into contact for a short distance near their ends, which are gibbed as to both their webs and anges, whereby all lateral movement of one member on the other is prevented and the strain properly provided for. lfo this end in the form shown'in Fig. 1 each endof the web 3 of the tension member is upset-so as to have an upward ange 8 and downward-flange 9. The web 1 ofthe compression -member has a double-angled ange 10forming a recess to receive the fiange 8. As clearly shown in Fig. 3, the lower corners of the anges are cut away at 2, so as to permit the end of the bar asto its entire width, including flanges, tobe turned up in the form of the flange 10 and be folded into such cut-away portion and to receive the flange 8, extending full width of the tension member. The function of the depending flange 9 is to prevent lateral displacement of the spring-seat 11 for the usual springs 9, which seat bears on the under side of web 3 and has a flange or shoulder 13 snugly fitting the flange 9. If desired, an end plate 14 may be secured to each end of the bolster.

Referring next to the car or body bolster, the same comprises a compression member made of channel-bar having a web 15 and flanges 16 and a tension member, also made ot' channel-bar having a web 17 and anges 1S. The said members are also arranged Web to web, and the bars are gibbed as to both web and ange; but the ends here need but a single flange 19, received by the double-angled iiange 2O on the other web. It is obvious that the Webs 1 and 3 of the truck-bolster might be similarly fianged-that is, that the flange 9 might be dispensed with, such flange'being desirable, so as to furnish an abutment'or stop for the spring-seat 11.

In Fig. I is illust-rated a modified form of body-bolster, in which the flanges 21 and 22 of the upper and lower members or channelbars, respectively,ektend in the same direction-that is, downwardlyinstead of in opposite directions, as shown in Fig. l-and such bars have the webs 23 and 24, corresponding to the webs 17 and 15. (Shown in Fig. 1.)

The ends of the channel-bars aregibbed in the same manner as those hereinbefore described. A

By reason of the construction hereinbefore described, particularly the end gibbing `as to both the web and ange, we provide a practical and serviceable bolster possessing great strength, and, moreover, such bolster is sim.- ple in its construction and easy of assembling and repair.

We claiml. A bolsterhaving its compression and tension members formed of two bars or plates, one of which is provided with end flanges and the other one of which is provided at its ends with double-angled flanges engaging said rstnamed flanges; substantially as described.

2. A bolster having its compression and tension members formed of channel-bars gibbed at their 'meeting ends as to both their Webs and flanges; substantially as described.

3. A bolster having its compression and tension members formed of channel-bars arranged web to web with their flanges outwardly directed, said members being gibbed as to their ends.

4. Abolsterhavingits compression and tension members arranged web to web, the ends of said members being gibbed; substantially as described.

5. Abolsterhavingitscompressionandtension members arranged web to web with their meeting ends gibbedand plates secured to the sides of said members; substantially as described.

G. Abolsterhavingts compression and tension members arranged web to web, the web of one member having a fiange and the web of' the other member having adouble-angled ange receiving the first-mentioned fiange; substantially as described.

7. A truck-bolster having compression and tension members gibbed together' at their ends, spring-seats, and means on the ends of each tension member to hold said seats in place; substantially as described.

f 8. A truck-bolster having its compression and tension members gibbed together at their ends, spring-seats, and a flange on the ends of each tension member to hold said seats in place; substantially as described.

9. A truck-bolster having a compression and a tension member formed of channelbars, and` spring-seats, the end of the Web of the tension member being upset to form a flange both above and below the web, the end of the other web bearing against the upper flange whereby the said members are gibbed together at their ends and the spring-seats bearing against the lower flange and held in place thereby; substantially as described.

10. A truck-bolster having a compression and a tension member, and spring-seats, the end of the web of the tension member being upset to form a liange both above and below the web,the end of the web having a doubleangled flange receiving the upper flange of the tension member and the spring-seats bearing against the lower ange; substantially as described.

` 11. A truck-bolster comprising a compression member having a web l and flanges 2, a tension member having a web 3 and flanges 4, the members being arranged web to web, a central support, the web 3 being upset to form upper and lower flanges 8 and 9 and the web 1 having a double-angled flange 10 t0 fit the flange 8, and a spring-seat 11 bearing against the under side of the web and having a fiange 13 fitting against the flange 9; substantially as described.

EDWARD CARLSON. JAMES PERRIE.

Witnesses:

S. E. HIBBEN, Lonrs B. ERWIN.V

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