US363435A - Chaelbs e - Google Patents

Description

2 Sheet3-'Sheet 1.

G. E. TEED. AUTOMATIO WAGON BRAKE.

(No Model.)

Patented May 24, 18873 aHozme-L wfliwasoao 3 3 N, PETiRs FhclWLillmgmphen Washin ton, 0,6

2 SheetsSheet 2.

(No Model.)

' ,0. E. TEED.

AUTOMATIC WAGON BRAKE.

No. 363,435. Patented May 24, 1887.

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OI-IARLES E. TEED, OF GRIFFINS CORNERS, NEW YORK.

AUTOMATIC WAGON-BRAKE.

SPECIFICATION forming part Of Letters Patent NO. 363,435, dated RIay 24, 1887.

Application filed J anuary 13, 1887 Serial No. 224,247. (No model.)

To aZZ whom it may concern: I Beit known that I, OnARLEs E. TEED, a citizen of the United States residing at Grifiins Corners, in the county of Delaware and State of New York, have invented certain new and useful Improvements in Automatic Wagon Brakes; 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.

This invention relates to that class of wagonbrakes in which the brake-shoes are automate.

ically applied to and released from the wheels by the holding back and pulling of the team,

I such action of the team serving to operate the brakes through the medium of a longitudinallymovable draft-tongue.

The objects of the invention are to simplify and strengthen the connections between the draft-tongue and the brake-bar, and to so arrange such connections as to permit a free pivotal movement of the tongue; and furthermore, to insure the quick application and release of the brake-shoes, and also a powerful grip or holding action of they shoes upon the wheels.

To the above purposes the invention consists, first, in the combination, with a tonguecarrying frame pivoted between the wagon hounds and a draft-tongue arranged to slide longitudinally upon the pivot-bolt of the frame, of a pair of levers pivoted upon the hounds directly above the pivot-bolt and connected with the tongue and with a brake-bar, so as to operate the latter by the movements of the tongue, as hereinafter described and claimed.

The invention further consists in the combination, with the brake-beam, of a pair of triangular or wedge-shaped brake-shoes arranged to slide vertically at the ends of the beam or bar and normally sustained in their lowermost position by spring action, as hereinafter described and claimed.

The invention consists, finally, in certain peculiar and novel features of general construction and arrangement, as hereinafter described, and specifically pointed out in the claims.

In order that the invention may be fully understood I will proceed to describe it with reference to the accompanying drawings, in which Figure 1 is a plan view of the front axle of a lumber-wagon with my improvements applied. Fig. 2 is an inverted plan view of the same. Fig. 3 is a central longitudinal section of the same on the lines 3 3 of Figs. 1 and 2. Fig. 4 is a detached view of one end of the brake-bar and one of the brake-shoes.

In the said drawings, A designates the front axle of a lumber-wagon, or of any other similar vehicle; and B B designate the wheels thereof. -Upon the upper side of the axle A are secured two bars, 0 C, which converge toward their front ends, and the rear ends of which are shown as connected by a curved bar, C. The bars 0 O are the hounds of the wagon, and are connected together about midway of their length, directly above their axle, by a cross-bar, C, as shown.

Between the ends 0 c of the hounds G, extending in front of the axle, is placed the tonguecarrying frame, which consists of two peculiarly curved bars, D D, connected together at their rear ends by metal bars-d d above and below the bars D, and at their front ends bysimilar metal plates or bars, d d and (1 d*. In order to strengthen this frame and toincreaseits'durability the edges or sides of the bars D are bound with metal strips (1 as shown. As previously stated this frame is placed between the front ends of the hounds, and said frame is held in position by a bolt, E, which passes laterally through the front ends of the hounds and also through the bars D.

F designates the draft-tongue,which extends between the front extremities of the barsD, at which point it is confined by the bars d d and thence between the plates or bars d,where it is confined between blocks (2* d, which are in turn held between said plates 01. The parts of the tongue,whioh lie thus within the tonguecarrying frame, are protected by metal plates 0 e 6 and the plates 6 and the corresponding portion of the tongue are formed with elongated slots 6 through which the pivot-bolt E passes, so as to permit an endwise movement of the tongue. The plate 0, which covers the upper side of the tongue F, carries a U shaped loop, e, beneath which lie the inner ends of two levers, G G, a pin, 6 extending downward through said loop and into the tongue, and also passing through elongated slots or eyes 9 in the levers G. The said levers G are piv: oted by pins it within loops H, similar to the loop a, which are secured upon the upper sides of the ends 0 of the hounds and directly over the pivot-bolt E, as shown. It will be observed that the relative position of thepivotal points of the tongue-carrying frame and of the lovers G, as well as the pin 6 are such as to prevent any impediment to the pivotal movement of the tongue by the levers relative to the hounds, so that the levers can be freely operated under all circumstances by thetongue. The outer ends of the levers G are extended beyond the outer sides of the hounds, and to these ends are connected the front ends of rods I I, which extend rearwardly between the axle and the crossbar O to the brake-bar J. The rear ends of therods I are screw-threaded, and pass through the ends of the brake-bar, the said end of the bars being held adjustabiy between two binding-nuts, 11, on ach rod for the purpose of varying the throw of the bar and to compensate for wear of the shoes.

The brake-shoes K consist each of a triangular or wedge shaped block, it, the three sides of which are inclosed by a metal plate, 7a. The front part of each plate It constitutes the face of the shoe, while the rear part is sprung away from the block, as shown at as, so as to enter a recess, j, in the front side of the brake-bar near its end. A metal plate, j, is secured to the front side of the brake-bar J at each end thereof, so as to overlie the recess j, and each of these plates extends between the rear sides of the corresponding block, k, and the portion 00 of the plate so as to support the brakeshoe upon the beam. These shoes are placed upon the brake-bar with their bases downward, as shown, and the base of each shoe is formed with a notch or recess, 70, within which enters the end of a spring-rod, L, which is secured to the under side of the brake-beam J by staples Z, the tendency of the spring-rod being to hold the brake-shoes in their lowermost position. By virtue of this arrangement of the brake-shoes, whenever the team holds back so as to force the tongue backward, the consequent forward movement of the brakebar will bring the brakeshoes against the wheels, and the latter will, by their revolution, move the shoes upward, and cause them to be firmly wedged between the tires of the Wheels and the brake-bars, thus giving afirm grip to the shoes.

A pair of metal. strips, m extend along the upper sides of the bars 0, and a similar pair of strips, m, extend along the under sides of said bars, said strips overlying the cross-bars C O, and underlying the axle A, so as to securely unite the parts. At their rear ends the strips m are bent to form loops m, in which the brake-beams J are supported and work.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

1. The combination, with the pivoted tongue frame, the sliding tongue confined therein, and the brakelevers pivoted upon the frame and connected pivotally to the said tongue, of the brake-bar J, havingthe recesses j and their covering-plates j, and carrying the spring-rod L of the triangular brake-shoes K, having the plates is sprung away, as at x, and the recesses 70 at their lower ends to receive the ends of the rod L, substantially as specified.

2. The combination, with the wagon-hounds O and the tongue-carrying frame composed of the bars D and cross-bars d d d, of the pivot bolt E, extending through said frame andhounds, the longitudinally moving tongue having the loop 6* and pin 6 the levers G, having elongated slots 9 g and pivoted in loops Hand in thesaid loop 6*, the rods I, and the barJ, connected to said rods by the nuts i, substantially as set forth,

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

' CHARLES E. TEED.

Witnesses:

DANIEL SMITH, AUGUSTUS H. TODD.

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