US478033A - Whiffletree-center - Google Patents

Description

`(N0 Model.)

' H. SWAN. WHIPPLETREB CENTER.

No. 478,033. Patented June 28, 1892.

, UNITED STATES PATENT OFFICE.

HORACE SWAN, RUTLANJ), VERMONT.

WHIFFLETRE'E-CENTER.'

` SPECIFICATION forming part of Letters ZPatent No. 478,033, dated June 28, 1892.

Application filed April 2, 1892- Serial No. 427,531. (No model.) l

To all whom it may concern,-

Be it known that I, HORACE SWAN, a citizen of the United States, residing at Rutland, in the county of Rutland and State of Vermont, have invented certain new and useful Improvements in Whiffletree-Fastenings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to whiiietree and other analogous fasteningsof that type usedas substitutes for the king pin or bolt; and its object is to simplify and cheapen as well as improve the operation and effectiveness thereof,

and also afford increased convenience and facility for repairing the same.

My invention consists in certain novel constructions, combinations, and arrangements of parts forming the whiiiletree-fastening, as will be hereinafter described.

In the drawings, Figure 1 is a rear view of the whiiiletree-supporting cross-bar, whifdetree, and its fastening.v Fig. 2 is a horizontal section of the fastening in the line ma: of Fig. 1. Fig. 3 is a perspective view of a portion of the cross-bar and that partl of the fastening which is screwed to the cross-bar. Fig. 4 isa perspective view of that partof the fastening which is attached to the whiftletree as viewed from the under side and rear. Fig. 5 is a vertical cross-section of the cross-bar, whiiiietree, and fastening as seen in Fig. l;

and Fig. 6 is a top view of the cross-bar, whifdetree, and fastening, the dotted lines illustrating the vibrator-y movements of the singletree. I7/

A in the drawings is the cross-bar; B, the whiftletree; C, the lower part of thefastening, and D the upper part; E, the packing, of

leather or molded or stamped paper-stock,

and F the plate by which the parts C and D are secured together and the part D, with the whiftletree, permitted to vibrate Without separating. The part C is a metal casting with flanges a, by which it is screwed to the crossbar A, and with a vertical bearing recessed portion of segmental shape, being a portion of a circle a little greater than a half-circle and open at its rear, as indicated at c, and be- ;low this segmental recessed portion it has a *horizontal segmental recess d of greater diameter than the recess l), said recess being z overhun g by the metal portion in which the recess Z) is formed.

.surface of the bottom e interlocking sustaining-lugs f are formed on the rear edge of the Vplate outside the recesses b d, as shown, fora purpose presently described. The part D is also a metal casting, and it is formed with flanges b', by which it is screwed to the Whittlet-ree, and a segmental neck g and a segmental head h, the neck and head being, respectively, portions of circles a little greater than halfcircles. The neck and head form an inverted- T coupling portion, which concentrically and closely fits the recesses b and d, and when the parts C and D areconnected by horizontally inserting C into D through the open back of the plate C a separation thereof by a vertical movement cannot take place, but a horizontal vibratory movement in a back and forward direction of the plate D upon the plate C is permitted, as illustrated by dotted lines in Fig. 6. The packing of leather or stamped or molded paper-stock E may be in several pieces or molded in one piece, and it is inserted at the open back of the fastening, so as to lie upon the bottom of plate C and against all of the surfaces where friction'and rattling contact would take place if the kpacking was not interposed between the plates C and D. This packing remainslike a pillar and can be Vreadily withdrawn and new packing introduced at the rear of the fastening parts. The plate F is formed with afront face, which is curved or beveled, as at m, and at the junction of the bevels, `which is midway of the plate, a` scale-beam-like bearing-edge fm vis formed, as shown, and opposite this bearingedge a piece of packing-leather or paper-stock E is applied upon the rear surface of theplate D, and against the same the Vedge m bears, and thus wear of the plates F and D' and rattling are prevented. The plate F is also formed with two bearing-lugs fn, and below these lugs are ianges b2, by which it is IOO secured to the cross-bar. The lugs n rest upon the lugs f of the plate D and prevent the plate F from descending, and they also form a horizontal bearing for the plate D to vibrate upon outside the back edge of the packing on a plane with the bottom portion of the upper surface of that part of the packing which rests on the bottom of the plate D.

By constructing the Whiiietree-fastenin g in the manner herein described the bearing portions can be made of about one-half the metall segmental bearing-recesses b and d, open at back, the plate D, having segmental neck g and segmental head h, and the confining-stop and bearing-plate F, having curved or beveled surfaces with a scale-beaIn-like bearing-edge between them, substantially as described.

2. The plate C, having segmental bearingrecesses Z) and d and open at back, the plate D, having segmental neck g and head h, packing E, applied between the points of contact of the plates with one another, and the confining-stop and bearing-plate F, substantially as described.

3. The combination, with the plates D and F, of the removable confining-stop and bearing-plate F, fastened on the cross-bar, formed with beveled surfaces and a bearing-edge at the back of the plates C and D, andpacked at E, substantially as described.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

HORACE SWAN. Witnesees:

E. S. WHITTAKER, FRED Il, HYDE.

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