US1080279A - Buffing-gear for draw-bars. - Google Patents

Description

APPLICATION FILED DEG. 16 1912.

Patented Dec. 2, 1913.

2 SHEETS-SHEET 1.

J. HOOK. BUFPING GEAR FOR DRAW BARS. APPLICATION FILED DEC. 16, 1912.

Patented Dec. 2, 1913.

2 SHEETS-SHEET 2.

Snodvtoz JAMES Hoov 4 JAMES HOOK, OF KANILLA, IOWA.

BUrFING-GEAR non. DRAW-BARS.

Specification of LettersPatent.

Patented Dec. 2, 1913.

Application filed. December 16, 1912. Serial No. 737,146.

To all whom it may concern:

Be it known that I, J AMES HOOK, a citizen of the United States, residing at Manilla, in the county of Crawford and State of Iowa, have invented certain new and useful Improvements in Bufling-Gear for Draw-Bars, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in bufiing gear for draw bars, and an object thereof is the provision of a device of this character in which the draw bar may move longitudinally to relieve the coupler of the strain which is usually imposed thereupon incident to the starting and stopping of the cars.

A further object of this invention is the provision of a device of this character comarrangements, and combinations of parts to prising a draw bar' having a longitudinally extending stem, the stem extending through a stationary block, and springs mounted upon the stem on either side of the block whereb the draw bar is cushioned upon movement in either direction.

With these and other objects in View, my invention resides in the novel constructions,

be hereinafter more fully described, claimed and illustrated in the accompanying drawings, in which,

Figure 1 is a side elevation of my invention illustrating the application of the same; 2 is a bottom plan view; Fig. 3 is a section taken on theline 33 of Fig. 2 with the springs and the draw bar removed; Fig. 4: is a section takenvon the line H of Fig. 1 showing the springs and the draw bar removed; Fig. 5 is a section taken on'the line 5-5 of Fig. 1 showing'the springs removed,

and Fig. 6 is a section taken on the line 6.6'

of Fig. 1 showing the springs and the draw bar removed; Fig. 7 is a fragmentary elevation partly in sectionshowing the connection between the draw bar and the draw bar stem.

Referring more particularly to the drawing, the numerals 1 and 2 designate the upper and lower supporting plates respectively which are secured to the car frame at the ends thereof by suitable bolts 3 or other fastening means, the plate 2 being ofi'set near its inner end asat 4 and extending outwardly as at 5 in spaced parallel relation withthe plate 1. The plates are formed near their forward ends with centrally arranged longitudinal slots 6, and the draw bar 7, which may be of any desired construction, is arranged between the plates and the bolts 8 are passed'through the inner end of the draw bar and through the longitudinal slots 6, the bolts being maintained in position by suitable nuts 9. It will be seen that the draw bar is capable of longitudinal movement in the plates, by reason of the engagementof'the bolts 8 in the longitudinal slots 6 of the plates.

An abutment plate 10 is fixed to the inner end of the draw bar 7 and extending rearwardly from the central portion of the draw bar between the spaced portions 1 and 5 of the plates, is the draw bar stem 11 which extends through the center block 12 which is held stationary in the plates by rivets 13. The inner end of the draw bar stem 11 is threaded as at 14, and mounted thereon is the rear abutment plate 15 which is held in position thereon by the nut 16 threaded upon the end of the stem. Abutment plates 17 and 18 are arranged upon either side of the center block 12 and arranged around the stem 11 between the bearing plates 10 and 17 are suitable coiled expansion springs 19 and 20, the spring 20 being arranged within the spring 19. are arranged on the inner end of thestem 11 between the bearing plates 15 and 18, the springs being arranged upon the stem, so

that an equal portion of the stem will be disposed upon either side of the center block 12 Whenthe draw bar is in normal position. The tension of the springs on the stem 11 may be regulated by adjustment of the nut 16 on the threaded end 14 of the stem, according to the weight of the load carried in the cars.

While the construction illustrated in the accompanying drawings is the preferred embodiment of my invention it will be understood that minor changes in construction may be made without departing from the spirit thereof, or sacrificing any of its advantages as determined by the scopeof the appended claim.

Having thus described my invention what I desire to claim and secure by Letters Patent is:

A device of the character described comprising a pair of plates secured together at one end, one of said plates being oifset and extending in spaced parallel relation with the other of said plates, each of said plates being formed in its free end with a longitudinal slot, a draw bar disposed between the free ends of said plates, bolts passing through the inner end of said draw bar and through said slots whereby said draw bar is slidab'ly maintained between said plates, an apertured block seured between said plates inwardly of said draw bar, a stem extending longitudinally from said draw bar and disposed through the aperture in said block,

and springs mounted on said stem on'either 10 side of said blockas and for the purpose described. a 1

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.-

JAMES HOOK.

Witnesses: I

B. O. WILKINSON, V H. P. WAHL.

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