US390316A - Elmee ellsvvoeth snydee - Google Patents

Description

(No Model) E. E. SNYDBR.

BRAKE No. 390,31'6. Patented Oct. 2, 1888.

y Thymian Smarts ELMER ELLSWORTH SNYDER, F LANCASTER, PENNSYLVANIA, ASSIGNOR OF PART TO BERNARD J. MOGRANN, CHARLES V. ROTE, AND EUGENE G. SMITH, ALL OF SAME PLACE.

BRAKE.

SPECIFICATION forming part of Letters Patent No. 390,316, dated October 2, 1883.

Application filed Drccmbcr 3, 1887. Serial Nn. 257.287'.

To @ZZ whom it may concern.'

Be it known that I, ELMER ELLswoR'rH SNYDER,a citizen of the United States, residing 1n Lancaster, in the county of Lancaster and 5 State of Pennsylvania, have invented certain Improvements in Brakes, of which the following` is a specification.

The object of my invention is to produce a brake in which the action of the wheel shall ro itself act as the motive ofthe force employed.

It consists in the employment of a lever located above the wheel to which the brake is applied. An ordinary shoe is hung to the longer arm of the lever and brought into engagement with the wheel by any suitable means. The short arm of said lever carries a second shoe, which also engages the same wheel, the downward tendency of the first brake engendered by the revolution of the 2o wheel bringing about the action of the second.

In the accompanying drawings, Figure l is a side view of my invention as applied to a pulley upon the shaft of any combination of machinery, and Fig. 2 a top view of the same bc- 2-5 low the line x a: of Fig. l.

As this brake can be attached to any and all forms of appliances in which a brake can be used the illustrationspresented are intended simply to show the applicability of the prin- 5) ciple of the revolution of the wheel acting as the power by which it shall be checked.

The drawings show the attachment of the device to a shaft connected with any shop ma chinery.

-In the drawings, A represents a lever, supported by therod I) and located above the wheel or pulley B to be acted upon. The longer end, a, of the lever carries a shoe, C, connected with it by a hanger, c. The shorter 4o end, c', is connected with ashoe, E, upon the opposite side of the wheel, in asimilar manner.

.Carrying-bars F support the shoe E, and are pivot-ally connected therewith by the same pin, P, by which the hanger is attached. This bar is pivoted to the post G. 1Where more than one wheel B is to be acted, on the rod F may connect with another brake shoe suspended to act on such -other wheel as shoe C acts on wheel B.

(No model.)

The spring H serves to uphold the longer 5o end of the lever and overcome any undue pressure resulting from the revolution of the wheel or excessive weight of the attachments of the shoe C.

Rods R, pivoted at r, apply the force nccessary to bring the shoe C into action, the rods being operated by the hand-lever L.

Operation: Bringing the first shoe, C, into engagement with the wheel B causes a downward movement of that end of the lever, and 6o the other shoe is thereby brought into contact with the wheel with a force in proportion to the relative lengths of the levcrarms.

The arms supporting the shoe E can be located in any position which, in connection with its hanger, will serve to bring it in counection with the Wheel.

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

I. The combination, with a wheel or pulley, of the brake-shoes suspended on opposite sides of said wheel and a pivoted support 'for said brakeshoes, whereby the friction of the wheel upon one brake-shoe is made to assistin drawing the opposing brake-shoe into action, substantially as described.

2. The combination of the wheel,I the opposing brake-shoes operating thereon, and the pivoted bar or lever from which said brake- 8o shoes are suspended and through which they are connected for joint operation,substantially as described.

3. rIhe combination of the wheel B, the pivoted bar or lever A, the brake-shoes C and E, 8 5 pivotally suspended from said lever, and the pivoted rod or brace F, operating substan tiaily as described.

4. The combination ofthe wheel, the pivoted brakesupporting bar or lever, the opposing 9o brake-shoes pivotally suspended from said lever, the pivoted rod or brace F, and means, substantially as described, for th rowing one of the brake-shoes into frictional engagement with the Wheel, and thereby operating the lever and rod or brace to force the opposing brake-shoe into engagement with said wheel, substantially as described.

5. The eombinatomwith the wheel B, of the b1ake-Sh0es,aml operating substantially as de pvoted bar 01' lever A, the brake-shoes pivscribed. otally suspended from said lever ou opposite 1 T sides of the Wheel, the spring operating on ELMBR ELLSWORTH SNS DER 5 said lever to release the brakes and hold them W'itfuesses:

out of engagement with the Wheel, and the NV. J. FORDNEY, pivoted rod or brace connected to one of said WM. R. GERHART.

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