US484954A - Robert l - Google Patents

Description

(No Model.)

R. L. FOSBURGH & J. P. MILLIGAN. BRAKE HANDLE.

No. 484,954. Patented 001;. 25, 1892.

UNITED" STATES ROBERT L. FOSBURGH AND JOHN F.

PATENT OFFICE...

MILLIGAN, QF ST. LOUIS, MISSOURI.

BRAKE-HANDLE.

SPECIFICATION forming part of Letters Patent No. 484,954, dated October 25, 1892.

Serial No. 420,307. (No model.)

To all whom it may concern.-

Beit known that we, ROBERT L. FOSBURGH and J OHN F.1VIILLIGAN, citizens of the United States, residing in the city of St. Louis, and State of Missouri, have invented certain new and useful Improvements in Brake-Handles, of which the following is a full, clear, and exact description.

Our invention relates to certain new and useful improvements in ratchet-brake-handles, the subject-matter, in part, of an application Which was filed in the Office on June 8, 1891, Serial No. 395,609, by us, and a patent for which was allowed on September 18,1891, except as to such part as related to a modification therein shown and described, and for which the Office required a separate application, which is the subject-matterofthis specification.

The invention herein described and claimed consists in certain modified construction of the device the subject of the above-named application, which was by amendment thereto reserved for the subject-matter of a further application.

It has for its object, in addition to the features of improvement described and claimed in the above-named application, a special form of construction peculiarly adapting the said improvement to be applied to already-existing brake-shafts without materially modifying their form of construction.

In the accompanying drawings, in which like letters of reference denote like parts in the several figures, Figure 1 is a vertical section taken diametrically through our improved brake head-piece, or, as on the line 1 1 in Fig. 2, showing the handle proper in elevation. Fig. 2 is a plan View of the same, and Fig. 3 is a side elevation or a sectional view taken as on the line 3 3 in Fig. 1.

A is the brake-shaft, to the upper end of which (see Fig. 1) is rigidly secured, preferably by the transverse pin 0, the ratchet headpiece B. The head-piece B is bored out longitudinally concentrically to two different diameters, the opening in the lower end being made to fit the upper end of the brake-shaft. Into the upper relatively-enlarged central opening is fitted the pivotal plug D, which is bored out centrally at its lower end to fit over the upwardly-extending end of the brakeshaft A. The head-piece B is formed with a laterally extending flange portion, on the outer edge of the upper fiat surface of which (see Figs. 1 and 3) are formed the radially-extending ratchet-teeth E. The ratchet-teeth E are formed so as to be inclined to the surface of the plate in which they are out, being relatively deepest in the radially outer edge of the plate. (See Fig. 1.)

The upper end of the pivotal plug D is slotted out diametrically to receive the fiattened or laterally-reduced end of the brakehandle F, which is pivotally secured therein,

preferably, by the pivot-pin G.

The under side of the handle F is formed with a lug or projection H, which in the operation of ourimprovedbrake handle, as here inafter described, is so shaped as to adapt it to engage with the ratchet-teeth E when the handle is turned in one direction, (that of the arrow in Fig. 2,) being formed with an inclined shoulder on the other side, so that it will slip over the teeth when the handle is turned in the reverse direction.

The pivotal plug D is formed with a circumferential recess 1, into which when the parts are assembled the inner end of screw K projects, permitting the rotation of the plug D, but preventing its removal from the headpiece B.

It is designed to'use our improved brakein connection with the ordinary foot-ratchet by which the brake-shaft is held against a return rotation when it is desired to get a new bight with the handle.

The operation is as follows: The handle F is turned in the direction of the arrow in Fig. 2, carrying with it the brake-shaft A by the lug I-I, engaging with the ratchet-teeth E. When the handle is pushed as far as it is desired in this direction, the foot-ratchet is applied, when the handle F can be turned in the reverse direction, as shown in dotted lines in Fig. 2. When it is desired to release the brake, the outer end of the handleF is simply raised, as shown in dotted lines in Fig. 1, when the shaft A will be free to rotate independently of the brake-handle, unwinding the brakechainthat is, the brake can be released without the brake-shaft carrying the brake-handle in this reverse motion.

The main features of advantage of this particular form of construction consist in the peculiar adaptability to already -existing the handle is piv'dtally secured, revglnbiy fitted in said relatively-enlarged hollow space within the said head-piece and around the inwardly-projecting end of said brake-shaft, combined and operating substantially in the manner and for the purposes specified.

In testimony whereof we have affixed our signatures, in presence of two witnesses, this 26th day of January, 1892.

ROBERT L. FOSBURGH. JOHN F.- MILLIGAN. Witnesses:

ALFRED RAMEL, J. W. Cnooxns.

Images