US1509278A - Device for coating pulleys with composition - Google Patents

Description

Sept. 23 1924.

I J. AGERUP DEVICE FOR COATING PULLEYS WITH COMPOSITION Filed July 19 1923 Patented s r.

JOHN AGERUP, OF LONDON, ENGLAND.

DEVICE FOR COATING PULLEYS WITH COMPOSITION.

Application filed July 19, i

To all whom it may concern.

Be it known that I, JOHN AGERUP, a subject of the King of Great Britain and Ireland, residing at 53 Haymarket, London, S. W. 1, En land, have invented a Device for Coating Pulleys with Composition, of which the following is a specification.

In the coating of pulleys with compositions, as for preventing belt slip, it is necessary or desirable that the material should be distributed evenly, and in some cases at least it is essential to success that the thickness of the layer should be substantially accurately determined and maintained. This can be readily done in a lathe before the pulleys leave the workshop but afterwards the performance of the coating is much more difficult.

The object of the present invention is to provide a simple device which will enable the coating of a pulley as aforesaid to be effected in a reliable and comparatively easy fashion after it has been mounted upon its shafting.

To this end the device consists broadly of a member having a strickle edge and equipped with means whereby upon the device being advanced towards a pulley engagement is made with the peripheral margins of the latter on the flank and circumferential surfaces in such wise as to maintain a uniform gap between the strickle edge and pulley face which determines the form of the coating in course of production.

A further feature of the invention consists in an assemblage of holder and means as referred to such as to enable pulleys of various widths to be treated.

Another feature of the invention consists in forming a holder so that by altering the angle at which it is held in relation to the pulley, flat as well as crown faces can be coated.

In some cases the production of the requisite layer of material upon the pulley necessitates the application of a lubricant, and a still further feature of the invention consists in the provision of a strickle member of, or having. incorporated therein, india rubber which when di ped into water for instance is wetted uniformly, said strickle' member being say clamped within a metal holder.

These and other features are combined in the implement of which a description is now about to be given with the aid of the accom- 1923. Serial nacsaeos.

panying drawings which illustrate one convenient embodiment of the invention.

Of the said drawings Fig. 1 is a perspective view of the device complete. Fig. 2 is an elevation, Fig. 3 a plan and Fig. 4 a section on the line 4-l of Fig. 2 of one member of the device. Figs. 5 and 6 are eleva tions at right angles tor one another of another member of the device and Fig. 7 is an undersideplan of Fig. 5.

As here shown, the instrument comprises a holder 1 having a slotted way the entrance edges to which whilst they occupy a plane tangential to a cylindrical surface when the implement is held in a position radial thereto are yet arched or curved in such plane so that as the holder is tilted in one direction into a position approaching the tangential plane the slotted way rises intermediate of its length. In this manner by appropriate manipulation, the edge of the strickle means, protruding uniformly through the slotted way can be made to sweep out over the pulley a path the surface of which is substantially flat or curved.

The holder 1 may be of metal having opposed walls 2 integral with one another leaving a hollow region constituting the slot ted way referred to so that a rubber or like strickle member 3 can be inserted therein where it may be fastened as by screws 4.

Adapted to be clamped upon the holder 1 at varying positions, as by binding screws 5, are a pair of blocks 6 each having a finger 7 stepped or provided with a shoulder 8 so that the holder can be applied to a pulley with the fingers acting as positioning means, the said shoulders resting upon the peripheral surface of the pulley and part of the fingers engaging the flanks thereof. As will be seen the shoulders 8 which determine the thickness of the coating that can be applied are curved so that the thickness of such coating does not materially vary when the angle at which the implement is held in relation to the pulley is altered. If, as in the case of fast and loose pulleys, one has been coated and the other is about to be, the finger block 6 nearest the pulley already coated is clamped near that ,end of the holder and the other block spaced at the requisite distance therefrom, this arrangement assuring that the coating of the already treated pulley shall not be interfered with, the strickle 3 for the same reason not being extended quite to the ends of the holder as clearly seen in Fig. l. lfhe aperture 9 in each block 6 is of a width such as to afford sufficient play to enable the blocks to be adjusted upon the holder so that the fingers at every position can be arranged in planes parallel to the plane of the pulley, the binding screws 5 being sufliciently powerful to hold I the blocks against movement when set. The curvature of the holder I have found by experiinent maybe conveniently struck to a radius of thirty-seven inches to deal with all Widths of pulley up to say eight or nine inches. I

What I claim is 1 1 A. device ofthe kind herein referred to, comprising a laterally curved holding bar provided With a longitudinal slot open at one edge of" the bar, said bar being U-shaped in cross-section, and a strickle member secured in the said slot and projecting beyond the said edge of the bar.

2; A device as set forth in claim 1, the said strickle member being formed of india rubber material.

3; A device of the kind herein referred to, comprising a member having a strickle edge andmeans adjustable upon said menr be'r 'having positioning fingers adapted to en gage the peripheral margins of pulleys of different Widths on the flank and circumferential surfaces thereof, substantially as deof block members ad-aptedto slide upon the said holder and means for clamping the same to the holder, said block members having stepped fingers adapted to engage the peripheral margins of a pulley on the flank and circumferential surfaces thereof substantially as described.

Signed at London England, this of June 1923.

26th day JOHN AGER'UP.

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