US134096A - Improvement in brakes for vehicles - Google Patents

Improvement in brakes for vehicles Download PDF

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US134096A
US134096A US134096DA US134096A US 134096 A US134096 A US 134096A US 134096D A US134096D A US 134096DA US 134096 A US134096 A US 134096A
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brake
beam
brakes
wheels
spring
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00Brake-action initiating means
    • B60T7/12Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/20Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer

Description

W. A. PIER.

Brakes for Vehicles.

No. 134,096. Patented Dec.17,1872.

a tact or not:

I ranged parallel with the reach, with its closed I NITED STATES PATENT- OFFICE.

' WILLIAM A. PIER, or .CORRY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF HIS RIGHT TO -H.:A. OATLIN,O F sA E PLACE.

IMPROVEM E'NT IN BRAKES FOR VEHICLES.

Specification forming part of Letters Patent No: 134,096, dated December 17, 1872.

To all whom it may concern:

Be it known that I, WILLIAM A. PIER, of Corry, in the county of Erie and State of Pennsylvania, have invented certain Improvements in Wagon-Brakes, of which the following is a specification:

My invention consists in a certain new combination of devices by means of which a brake is automatically applied to the wheels of a wagon, buggy, coach, or other vehicle, or to a car drawn by either steam or horse power, when'moving down a grade.

In the drawing, which is a perspective View of a wagon having my invention applied thereto, A represents the wheels; B, the axles; G, the tongue; and D, the reach; these parts being of any usual or approved construction, except that the tongue is slotted. E is a brakebeam provided with shoes 0, and supported upon the reach in such manner as to slide freely backward and forward. F is a spring secured centrally to the reach a short distance in rear of the brake-beam. The ends of the spring are connected with the beam by means fined to the reach by means of straps screwed to the rear hounds or braces. G are levers pivoted to the hounds, and connected to the brake-beam by links 6 E are scrapers to clean the mud from the tires of the wheels. They may be mounted either on the brakebeam or on the shoes, and should be sufiiciently elastic to keep their upper ends in contact with the wheels, whether the shoes are in con- H is a double-armed link arend projecting a short distance in front of the K front axle, the rear ends of its arms being connected with the free ends of levers G. H

is the evener or double-tree. H is a second double-armed link connecting the evener with .link H. One arm of link H passes above the arm of link H, then through the evener, then through a slot, c, in the tongue, and then the vehicle.

pivoted to the reach at i. The rock-shaft I is mounted on the brake-beam in such position that the free end of latch I rests upon the crank at the inner end of the shaft.

When the parts are in the position repre sented in the drawing, the brakes are held firmly against the wheels by the spring F. If, however, the horses move forward the first effect of the draft upon the evener is to draw the brakes from the wheels, through the action of links H H, levers G, and links 6 A further forward movement of the team will bring the hammer-bolt in contact with the tongue at the end of the slot 0, so as to move Of course the spring F will, as soon as the draft upon the evener ceases, press the brake upon the wheels; hence as soon as thevehicle begins to go down a hill the brake is brought into action automatically; and the amount of tension of the spring may be made such as to hold a heavy load without operating injuriously with an entirely empty wagon, because, when the wagon is brought to a stand going down hill, a very slight draft upon the evener will sufficiently release the brake.

As shown in the drawing, the latch I is raised by the crank of the shaft I so that the brake-beam is free to move backward and forward without coming in contact with the shoulder i of the latch; but if I desire to back the vehicle, I turn the crank down so that it lies flat upon the brake-beam, thus letting the latch I also rest upon said beam. If, now, the beam be moved forward so as to draw the brake from the wheels, the shoulder i will drop down behind the brake-beam and lock it, so that when the team backs up, thus releasin g the evener, the spring cannot press the brake against the wheels, as will be readily understood without further explanation.

My invention can be readily applied to either street-cars or railway cars by connecting the brake-beam with the draw-head, in which case one link can ordinarily be dispensed with, my object in using two in this construction being to permit the desired swiveling motion of the front axle on the kin g-bolt. r

I might use two separate springs attached to the brake-beam by the links f or I might arrange the spring or springs in frontof said beam without departing from the spirit of my invention; or I might operate the link H by 3. The combination of whiffletrees H links hand. Hence I do not wish to be confined to H and H levers G G, links e and a, spring the exact construction shown; but F, links f f, latch I, and crank I with the run- What I do claim isning-gear and brake-beam E, substantially as WILLIAM A. PIER.

1. In combination with the brake-beam E described. and spring F, a latch or stop to lock the brake from the wheels when backing the wagon, substantially as described.

2. The combination of the brake E, spring F, latch I, crank I, and their connecting devices, substantially as set forth.

Witnesses:

H. H. DOUBLEDAY, J. S. WILLIAMS.

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