US762254A - Machine for applying cement to stock. - Google Patents

Description

y No. 762,254- PATENTED JUNE 7,l 1904.

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UNITED STATES Patented June 7, 1904.

PATENT OFFICE,

REIBBU@ MACHINE FOR APPLYING CEMENT TO STOCK- SPECIFICATION forming part of Letters Patent No. 762,254, dated June '7, 1904.

Application filed October 26, 1903.

To @ZZ whom it may concern:

Be it known that 1, GEORGE LORENZO ROL- LINs, a citizen of the United States, residing at Bridgewater, in the county of Plymouth and State of Massachusetts, have invented an Improvement in Machines for Applying Cement to Stock, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention is an improvement on the apparatus shown in United States Patent No. 7 43,929, dated November 10, 1903.

rlhe application shows a revolving brush provided with a projecting guardv to enter a channel in an outer sole as ashoe is being fed under the wheel, brushes at opposite sides of the guide applying india-rubber cement to the channel and to the overturned channel-flap.

Herein I have provided novel means for supplying the brush with just the proper quantity of cement, which is'expensive, and therefore any means for controlling the quantity of cement used is of great importance.

The cement-outlet in the tank is normally closed by a valve carried by a manually-con-v trolled lever that may be opened when cement is to be let out onto the brush, a strong spring acting instantly to close the outlet when the lever is released by the operator. I have also provided a stripper to remove from the bristles any excess of cement.

Figure l in front elevation with the column broken out shows one of my improved cementapplying machines. Fig. 2 is a side elevation of the tank and brush .looking at the right of Fig. l. Fig. 3 is a partial section in the line re, Fig. l; and Fig. 4 is a perspective view of the stripper detached.

The foot-piece A has a column A', to which is attached by bolts B a tank B' for containing the liquid or india-rubber cement, (shown at B2,) said tank having at its lower end (see Fig. 3) a hole B3, that is in communication with an outlet O and a block C,shown as connected with the tank by a bolt O2. rlhe block has a lug a, that receives a stop a', shown as a screw, and a screw or stud a2, that constitutes the Julcrum for a lever D, having a toe d, that is guided Serial No. 178,540. (1T/111105,61.)

in a slot behind a plate (Z, held in place by suitable screws (Z2. The lever carries a sliding valve-plate D', that is faced smoothly and is slidable. over the faced outer side ot' the block O. By setting up the screw-stud t2 the closeness of iit of the valve with the block C rmay be regulated. The valve is shown as ap'- plied loosely to the lever, which constitutes a manually-controlled valve-actuator by prongs of thevalve forking over the lever and entering notches in the upper and lower edges thereof. (See Fig. l.)

rlfhe lever D is normally held in such position by a spring E as to close the valve over the outlet and prevent the escape ot' cement from the tank, and the strength of the spring may be regulated by the adjusting-bolt E.

The lever D (see Fig. 3) has a socket in which is located a spring DX, that acts constantly to press the valve-plate D in close contact with the seat O.

rlhe stop al' by its position determines the extent of opening movement of the lever D, and consequently regulates the quantity ot' cement, and by adjusting said stop the extent of movement oi' the valve may be regulated to a nicety and only a predetermined amount of cementbe permitted to escape from the tank onto the brush to be described.

The lever D is moved in a direction to uncover the outlet by a lever D2, having` its fulcrum at D3, the opposite end ot' said lever having, as shown, a hole that embraces loosely the outer end ot' the lever D, the spring E beingconnected directly with the lever D2.

The lever D2 has attached to it a rod b, attached at its lower end toa lever Z2', pivotedat one end to one of the feet,'and when the operator depresses the lever bf the valve is moved to uncover the outlet and at the same time the stress ofthe closing-spring is increased. The mechanism described for controlling the movement of the valve may be moved so quickly and accurately that thinner cement than usual may be used without danger of losing the same. I have ascertained by experiment that with the apparatus herein described it is possible to cement the channel and'fiaps of a stated number of shoes with about one-half the quantity of cement usually required when the cement is applied to the channel and its flap by means now used.

The bottom of the tank is shown as provided with depending' ears e, that with straps e', united thereto by bolts e2, form bearings for a brush-shaft e3, that at its t' ront end has secured to it the brush F, which, as shown, consists of two circular blocks 2, of wood, and a central piece 4, of metal, the central piece being of larger diameter than the blocks 2 that it lmay extend beyond the blocks and constitute a guide to enter a channel in a sole, the guide serving to insure the directing ot' the shoe in the proper path as the latter is moved under the brush by hand, while the bristles 3 of the brush, located at opposite sides of the guide and supplied with cement, apply the latter in in the channel at one side of the guide and on the exposed face of the overturned channeliap, as provided for in the machine shown in said application.

The arrow, Fig. 1, shows the direction in which the'brush is turned by the shat't c3 by, it may be, a driving-belt applied to a pulley e4, secured to said shaft.

A depending' portion of the framework has secured thereto by a screw fa wiperf',(shown in Fig. 1 and detached in Fig.. 4,) said screw entering a slot f2 in the shank f 3 of the wiper. rI`he wiper is arranged on a chord of the circular path of the brush and has two like arms 5, that are tapered at their under sides, as shown, so as to wipe the cement toward the periphery of the brush. These arms near their under edges have inwardly-projecting ribs 6, inclined downwardly and backwardly, as shown by dotted lines, Fig. 1, and by full lines, Fig. 4, said ribs being wider as they approach the upright wall 7 of the wiper, so as to leave a V-shaped space in which the bristles of the brush in the rotation of the latter may travel, the edges 6 of the wiper gradually hugging the bristlesmore closely and wiping the cement from the hub of the brush toward the ends of the bristles that said cement may be applied to the channel and its fiap to properly cement the same that the flap when turned back into the channel to conceal the Jastenings therein may securely hold the ap in place.

`The application of an excessive quantity of cement to the channel and the fiap,or to either, besides being wasteful of expensive cement is also injurious to the shoe. By my machine the best cement in controlled quantity will be used, and the shoes having their channel-flaps cemented by my machine will wear better and longer.

The tank has a cover G, so thatthe cement therein is not exposed to the atmosphere, and consequently the rapid evaporation of the naphtha in the cement is obviated.

The central part or guiding member of the wheel has a series of projections g, (see Fig. 1,) that act against the partially-overturned channel-flap and wipe the same farther back, so that the brushes may act more lthoroughly in the channel and on the iap in covering the same with cement.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a machine for applying cement to stock, a rotatable brush, a tank having a valve, means to open the valve to discharge cement on the brush, and a wiper arranged between the valve and the axis of rotation of the brush on a chord of the circular path of the brush and slotted that the bristles at the upper edge of the brush may travel therethrough, the wiper wiping from the bristles excess of cement toward the periphery of the brush, substantially as described.

2. In a machine for applying cement to stock, a rotatable brush, means to discharge cement thereon in regulated quantities, and a wiper having inturned lips to act on the bristles of the vbrush from near the center of rotation thereofl toward the edges of the brush as the brush travels ,through the wiper to carry cement toward the periphery of the brush.

3. In a machine Afor applying cement to stock, a rotatable brush, means to discharge cement thereon in regulated quantities, a boxlike wiper arranged on a chord of the circular path of the brush and having slotted and inturned lips, some of the bristles above the center of rotation lof the brush traveling through said box and between its inturned edges, `the latter contacting with the outer sides of the bristles and wiping over the same outwardly toward their outer ends.

4. In a machine for applying cement to stock, a rotatable brush, means to provide the same with cement, and a box-like wiper having inturned downwardly-extending lips, said wiper being arranged on the chord of the circular path of the brush to wipe cement toward the periphery of the brush.

5. In a machine for applying cement to stock, a rotatable brush, means to supply it with cement, and a box-like wiper having inturned lips disposed on a chord of the` circular path of the brush and presenting a U-shaped opening between the same through lwhich the bristles of the brush above the center of rotation of the brush travel.

6. In a machine for applying cement to stock, a rotatable brush, means to supply cementto the brush, an adjustable box-shaped wiper interposed between the center of rotation of said brush, and the means for supplying cement to the brush, said box havingI inturned lips `to act against the sides of the bristles to wipe the same from near their inner ends outwardly, excess of cement being retained by said lips in said box-shaped wiper.

7 In a machine for applying cement to stock, a rotatable brush, a lever having a loosely-sustained valve, a tank for holding ce- IOO IIO

ment, said tank having an outlet with which said valve eoaets, means to ad Just said lever in a line parallel with said outlet, and a wiper interposed between said valve and the center of rotation of the brush, said Wiper having inturned, downwardly-inclined lips presenting a slot between the same in which part of the bristles above the axis of rotation of the brush travel when the brush is applying cement to

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