US133745A

US133745A - Improvement in clearer-bars for horse-rakes

Info

Publication number: US133745A
Authority: US
Publication date: 1872-12-10
Anticipated expiration: 1889-12-10

Description

D. E. BRISTOL.

Clearer-Bar for Horse-Rakes.

N0.133,745. Patented D e-c.10,1872.

Miivesses. v I. I

4M. PHUTD-LITHOGHAPHIC CDJVJC (OSBOHNE S PIFGCESS) UNITED STATES DAVID E. BRISTOL, OF ALBANY, NEW YORK, ASSIGNOB TO HIMSELF AND PATENT OFFICE.

JOHN A. BUBNAP, OF SAME PLACE.

IMPROVEMENT m CLEARER-BARS FOR HIORSE-RAKAES.

Specification forming part of Letters Patent No. 133,745, dated DecemberlO, 1872.

To all whom it may concern:

Be-it known that I, DAVID E. BRISTOL, of the city and county of Albany,.State of New York, have invented certain new and useful Improvements in Olearin g-Bars for Horse Hay- Rakes; and I do hereby declare that the folsame parts.

My invention relates to certain improvements in clearing-bars of horse hay-rakes by which the said bar is made more still to resist any vertical or lateral strain that may be exerted on the same, and will be made more firm at its juncture with the axle or frame of the I rake, and will be capable of receiving the thimble-bar,which heretofore was supported by special pieces; and it consists in forming the said bar in its longitudinal direction with a taper, and in its cross-sectional structure ribbed o1. fluted, and providing it at its head, at its attaching device, with a broad bearing-flange,

whereby the said bar will be rendered greatly stifl'ened without having its weight materially increased, and will be better supported at its point of attachment with the frame of the rake,

and therefore be better able to withstand the great pressure exerted on the bar by the hay, either in a vertical or lateral direction, than the clearing-bars, as they have heretofore been made.

In the drawing, A represents the clearingbar, made, preferably, of cast malleable iron. The said bar is about three feet long,-more or less, and is made tapering from its head A to made round, square, or of other solid form,I form it with ribs to a or flutings b b, as shown stantially in the same manner- The said flutings or ribs are made to commence at the head A and are continued to the tip A, as shown in Figs. 1 and 5. Atthe head A is formed a flange, 0, extending outward beyond the ribs, and forming a shoulder, c, from which the said ribs or a start in one direction, while the attaching-bolt 01 connects with it, as shown. When the bar is attached to the frame of the rake the bolt at will be made to pass through the frame-piece B, and the said shoulder 0 'will have its support against the timber, and be tightly drawn into its surface by the screwthreaded nut 0 working on the bolt 0?, as shown in Figs. 5 and 6.

Being thus constructed with the taper form and the ribbing or flutin g elements, and prothe extensive flange-shoulder, thebar is not only rendered stiff in its lightness between its head and tip, but it is also made firm at its junction with the timber, and all tendency to being bent, deflected, or sprung in either its length or at its base will be measurably overcome.

An eye, :0, located on the upper side of the bar A, about five inches (more or less) from the shoulder c, is made to receive the thimble-bar z, carrying the fingers of the rake.

Having described my invention, what I claim is-- The tapering clearing-bar A, having ribs a, flange c, and attaching-bolt d, substantially as and for the purpose set forth. I

' DAVID E. BRISTOL.

Witnesses:

ALEX. SELKIRK, (ll-ms. SELKIRK.

its tip A, as shown; and instead of being.

in Fig. 3, which is preferred, though the ribbin gs or fiutings in Fig. 4 would operate subvided with abroad base support, as is given by