US313644A - Stockton bartron - Google Patents

Description

(No Model.)

S. BARTRON.

FRICTION GLUTGH. No. 313,644.

N Patented Mar. 10, 1 885.

,INVENTOR NlTE Starts arnrvr region.

STOCKTON BARTRON, OF PORTLAND, PENNSYLVANIA.

FRICTION-CLUTCH.

SPECIFICATION forming part of Letters Patent No. 313,6M, dated March 10, 1885.

Application filed August 22, 1884.

To all whom it may concern:

Be it known that I, STOCKTON BARIRON, of Portland, in the county of Northampton and State of Pennsylvania, have invented a new and Improved Friction-Clutch, of which the following is a full, clear, and exact description.

My invention consists of an improved contrivance of expanding and contracting frietion-segments carried on the side of a wheel fitted loosely on the shaft, in combination with the inner periphery of a rim or flange of a pulley or hoisting-drum keyed fast to the shaft, making simple and efficient friction devices for hoisting and other machinery, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of referenee'indicate corresponding parts in all the figures.

Figure 1 is asection of the shaft and side elevation ofmy improved friction-clutch. Fig.2 is a section of the clutch on the line 00 a" of Fig. 1. Fig. 3 is a section of the clutch on the line yg of Fig. 1. Fig.4. is a detail of the frictionrim and the devices for expanding and contracting it. Fig. 5 is a detail of the contrivance for eonnectin g the mechanism for expanding the friction-rim to the loose wheel, and Fig. 6 is a detail of the contrivance for mount ing the friction-rim on the loose wheel.

The drivingpulley a (or it may be a hoistingdrum or other device to be driven) is designed to be keyed fast to the shaft 1), and has a flange or rim, 0, to the inner periphery of which the sectional expanding friction-rim cl, having wood faces 6, is fitted, so as to be ex panded against the rim and slackened away fromit, said rim being connected by tongued lugs f, formed on er attached to it, with ra dially-grooved lugs 9, east on arms h of the toothed wheel t, fitted loosely on the shaft 1), the rim d being madein two segments of semicircular form, each of which" has a connect ing-lug, f, at the middle, so that they are connected to the wheel '5 by grooved lugs g, located opposite to each other on the wheel, to be shifted radially and oppositely to each other for applying the clutch and detaching it.

The two segments of the friction-rim are (No model.)

jointed about midway between their ends and the center to extension-arms j, which are jointed to the sliding head k, tongued and grooved into a bar, Z, supported by a couple of the arms h of the wheel i, and connected by a link, on, with a sliding collar, n, fitted on the hub of the wheel 2', to be shifted forward and backward along the wheel-hub by a forked shipper, (not shown,) to expand and contract the friction-rim by thrusting out and drawing in the heads is radially in the manner to thrust out and pull back the arms j.

The arms j and sliding head 76 form togglejointed levers connecting the two segments 01 together, and the links at and'sliding collar a form toggle-levers connecting the two toggle-lcversj k in a double-toggle jointed meehanism adapted for thrusting out the frictionbrakes with great power. The collar a is connected by rods 0, extending through the wheel to a sliding collar, 1), on the shaft b,outside of the wheel, for a means of connecting the forked shipper to said collar n, which is located between the wheel z and the pulley or drum a, where the shipper cannot be connected directly to it.

The rims d have a flange, q, at each end, to hold the wood faces against being forced around the rims more effectually than they can be riveted onto the faces of the rims cl.

It is immaterial to the operation of the clutch whether the pulley a or the wheel 2' be the driver.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a frictiolrcluteh, the expanding segmental seetions having at their ends outwardly-projecting flanges or stops, whereby the frictional face-strips are held thereon, substantially as and for the purpose set forth.

2. The toggle devices j it", having support on the arms of the wheel 1' by bars Z, said devices or levers 7t and the bars Z being tongued and grooved together, a11d said levers sliding or moving in a plane transversely to the length of said bars, in combination with the expanding friction-rims d, also mounted on wheel 6, and the shipper-collar n, substantially as described.

3. The combination of the shipper-collar p and rods 0 with the collar n, located between the loose wheel 2' and the fast pulley a, and connected with the friction-rims d by toggle mechanism m and j k, said rods 0 extending through the wheel i, substantially as described.

4. In a friction-clutch, the friction-rims d, combined with the rims c of the fast pulley, and connected to the loose wheel 2 by the radially tongned and grooved lugs f 9, said tongucd lugs being formed upon levers k, and I0 said grooved lugs being made in bars I of the connection, and said friction-rims having means for expanding and contracting them, substantiallylas described.

STOCKTON BARTRON.

Witnesses:

J NO. BUZZARD, SAMUEL GooD.

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