US681583A - Whiffletree. - Google Patents

Description

No. 681,583. Patented Aug. 27, |901.

A. C. SCARR.

WHIFFLETREE (Application led June 22, 1901.)

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UNTTnD STATES PATENT ABRAHAM CALVERT SCARR, OF HARRISTON, CANADA.

WHIFFLETREE.

SPECIFICATION forming part of Letters Patent No. 681,583, dated August 27, 1901.

Application tiled June 22, 1901. Serial No. 65,615. (No model.)

T0 all whom it may concern:

Be it known that I, ABRAHAM CALVERT SCARR, a subject of the King of Great Britain, and a resident of Harriston, in the Province of Ontario and Dominion of Canada, have invented a new and Improved iVhiftletree, of which the followingvia full, clear, and exact description.

The object of this invention is to provide a whiffletree of simple novel construction which is inexpensive to construct, is very durable and strong, and that may be varied in dimensions to suit the service it is to perform.

rlhe invention consists in the novel construction and combination of parts, as will be hereinafter described, and defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both figures.

Figure 1 is a plan view of4 the improved whiffletree; and Fig. 2 is a transverse sectional view, substantially on the line 2 2 in Fig. 1.

The improved whifiietree is mainly constructed of metal bars that are so combined and arranged as to afford a very light, strong, and durable pull-bar or whiflietree for a vehicle designed to be drawn by horses or other draft-animals, as will now be specifically described.

10 and 11 respectively represent a rear bar and afront bar of the whiffletree, and said bars as shown are duplicates of each other, separately consisting of a straight piece having suitable length, the sides thereof being parallel with each other, as are also the edges.

A truss-bar 12 is a coacting member with the flat bars 10 11 and is located between said bars, as shown in Fig. 1. At an equal distance from each end of the truss-bar 12 two obtuse-angular bends a d are formed thereon, aording a flat intervening portion at and near the longitudinal center ofthe same, as shown at h in Fig. 1, which portion is seated upon the inner side of the front bar 11 of the whiftletree. A spacing-block 13 is introduced between the flat portion b of the truss-bar 12 and rear parallel bar 10, consistin g of an oblong rectangular billet, preferably of hard wood. A loop-plate 14 is provided as a coupling member for the whiiiietree, consistin g of a metal strip having substantially a V shape, providing an eye c at its longitudinal center and two flat limbs extended oppositely from said eye, as shown in Fig.'1. The loopplate 14 is imposed upon the front bar 11 opposite the spacing-block 13 and is secured in place by two rivet-bolts d, that are inserted through alined perforations in the loop-plate limbs, bars 10, 11, and 12, and the spacingblock 13, whch disposes the eye c at the longitudinal center of the Whifiietree, projecting from the front side thereof. Near each extremity of the truss-bar 12 an obtuse-angular bend e is formed reversely of the bends o and of such degree as to provide two end portions h thereon, which are imposed upon corresponding end portions of the rear bar 10 and have level contact with the inner suface thereof. Between the portions h of the trussbar 12 and the forward surface of the front bar 11, at and near each end of the same, two like spacing-blocks 15 are inserted. Two similar loop-plates 16 are completing members of the improved whiftletree,and each comprises a flat metal barbent to produce a loop g thereon at its center of length. The loop-plates 16 are held upon the rear surface of the bar 10 respectively at and near its ends by two rivetbolts t' for each of said loop-plates, these pairs of rivet-bolts passing through spaced perforations that extend through the limbs of the loopplates, the rear bar 10, portions 7L of the trussbar 12, spacing-blocks 13, and front bar 11, the ends of the bolts being riveted or otherwise secured from longitudinal displacement.

It will be seen that the peculiar construction of the improved whifiictree affords great strength and adapts it to withstand Very heavy draft strains applied upon the two loop-plates 16 and the central loop-plate 14. Furthermore, the body of the whiffletree is very light and may be manufactured without using forge heat, which evidently cheapens its production.

In constructing the truss-bar 12 I preferably turn up the edges at a right angle, which renders said bar very stiff and strong.

Having described my invention, I claim as new and desire to secure by Letters Patent- 1. A whiifletree, comprising two straight and parallel metal bars, an intervening bent IOO truss-bar, two spaeingbloeks at respective ends of said bars, a central spacing-block between the truss-bar and one straight bar, and means to secure the bars and spacingbloeks together.

2. A Whiletree, comprising two straight and parallel bars, a truss-bar bent at two points nearthe center, and also reversely at two points near the ends thereof, a spacingblock near eae'h end of the bent truss-bar intervening it and the front straight bar, a spacing-block between the middle portion of the truss-bar and the rear straight bar, and means to secure the bars. and spacing-blocks together.

3. A whiffletree comprising two straight and parallel lbars, that are front and rear members of the Whiftletree, a truss-bar bent at two points near the center, and also re- Versely at two points near the ends thereof, a spacing-block near each end of the trussbar intervening it and the front straight bar, a spacing-block between the middle portion of the truss-bar, a loop-plate near each end of the rear bar, a loop-plate near the center of the rear bar, and means to secure the loopplates, bars and spacing-blocks together.

ABRAHAM CALVERT SCARR.

W'itnesses:

JAMES SMITH, THOMAS GRILLS.

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