US2208694A - Shoe channel cementing machine - Google Patents

Description

July 23, 1940. J A' 2,208,694

SHOE CHANNEL CEMENTING MACHINE Filed May 16, 1938 2 Sheets-Sheet l @AL I M 8% y 3, 1940. J. BARBATI 2,208,694

SHOE CHANNEL CEMENTING MACHINE Filed May l6, 1938 2 sheets sheet 2 WVE/VTUF- varies. Channels of the so-called English type; having a curved base and as illustrated in Fig. 5

Patented July 23, 1940 UNITED STATES PATENT OFFICE Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application May 16, 1938, Serial No. 208,140

t 7 Claims. (!..12-80) This invention relates to machines for applying cement to the channel of a shoe in order to attach the channel flap to the sole. It is herein illustrated as embodied in a machine of the extrusion type in which the work is manually presented to a depending nozzle and moved to carry successive portions of the channel past the nozzle.

Channel-cementing machines of the extrusion type are being successfully employed for the application of cement to shoe channels through a depending, tapered, rigid nozzle. 1 It will be understood, however, that the channel-forming knives employed in different styles of shoes and by difierent manufacturers are not uniform. Furthermore, the depth of the channel varies between the forepart and the shank portions of the shoe. For the correction of the first difiiculty, a variety of nozzles is provided but shoe manufacturers are sometimes reluctant to stock a supply of difierently shaped nozzles and frequently the operator isunwilling to take the time to change from one nozzle to another as the class of work of Letters Patent of the United States No. 1,901,140, granted March 14, 1933, on the application of Arthur Bates, are difficult to coat properly with a rigid nozzle.

In order to meet these conditions and to provide a machine which may successfully be employed with a wide variety of shoes, my invention pro- Vides, in accordance with one feature thereof, a

specially positioned and shaped drag brush for spreading the cement after 'it has been applied by a machine of this type. This brush, as illustrated, is pointed to enter thechannel and is supported on the machine in position pointing down wardly and rearwardly in a direction opposed tothe direction of movement of the 'work. As a consequence, the bristles are radically deflected during use and always spring back sufficiently to be operative in treating successive shoes, regardless of the tendency of the sticky cement to hold the bristles in their deflected position.

Another feature of the invention resides in the provision of a crease-entering guide finger by which the operator is enabled readily to hold the work in proper relation to the extruding nozzle. 1

This finger is illustrated as yieldably supported for movement toward and away from the nozzle thereby to accommodate varying thicknesses of stock in the sole and associated welt. Furthermore, the pivoted support for thefinger is yieldably urged toward the Work and, hence,"enables the finger to accommodate itself to varying depths of crease between the upper and the welt.

These and other features of the invention Will be described in the following specification, taken in connection with the accompanying drawings, 5 in which Fig. 1 is a side elevation of the machine with a portion of the frame removed to show the interior mechanism;

Fig. 2 is a detail angular view on a larger scale of the crease-entering guide finger, showing the way in which it is supported;

Fig. 3 is an angular view on a much larger scaleshowing the nozzle and the drag brush;

Fig. 4 is another view of the support for the drag brush, taken in the opposite direction from Fig. 3, and

Fig. 5 shows the action of the nozzle and brush in coating the channel of a shoe sole.

The invention is illustrated as embodied in a machine of the type shown in Letters Patent of the United States No. 2,098,253, granted November 9, 1937, on an application of W. L. MacKenzie, for Channel cementing machines, but it will be clear that it may be embodied in other machines having different coating mechanism. The ma, chine comprises a hollow frame l0 mounted on a suitable pedestal l2 and is provided with an applying nozzle M to which cement is delivered, when permitted by a control valve [6, through a flexiblepipe l8 from a receptacle under the pressure provided by a pump 22. This pump is driven by power imparted by a drive shaft 24 and the opening of the valve [6 is effected by alever 26 operated indirectly, as described in the abovementioned patent, by a treadle rod 30 connected to a treadle ,(not shown) and adapted to be depressed to a position determined by the engage ment of a pivoted arm 32 with a fixed stop 34/ The machine is also provided with a flap-engaging finger 36 mounted for oscillation toward and away from the side of the nozzle l 4-by a camactuated lever 38 under the control of a toggle mechanism 40 which is brought to the operative position shown on depression of the treadle rod 30. J i

'.It will be understood that shoes, held in inverted position, are presented to .the nozzle M by the operator, who moves the shoes with respect to the nozzle topresent successive portions of the channel thereto. In so doing, it is important that the pointed lower end 42 ofthenozzle be held at theroot 44 (Fig. 5) of the channel of a shoe S. This positioning of the shoe is facilitated by a crease-entering guide finger adapted to be in- '55 serted in the crease 52 (Fig. 1) between the upper and the sole or welt, as the case may be. This finger has a rounded thin end 54 and is pivotally mounted at 56 on an arm 60 arranged to swivel on the drive shaft 24 to accommodate variations in the depth of Welt crease. When the treadle is depressed, the arm 65 is swung toward the shoe by a link 62 connected to a bell crank 64, the end 88 of which is forked to surround the treadle rod and is engaged by a washer 68 against which rests a spring it under compression. The weight of the arm 58 is supported by a spring 12 which, when the treadle is released, returns the arm to an inoperative position, away from the work. It will be noted that the finger 59 is adjustable as to length by a screw-and-slot connection l4 and that it is yieldable up and down with respect to the nozzle to accommodate various thicknesses of the stock in the sole and/or welt by reason of the pivotal mounting around the pin 56. Movement around this pin is controlled by a spring is and a stop screw l8.

The nozzle illustrated is of the construction shown in Figs. 9 and 10 of the above-mentioned patent, being provided with a tapered end having a rounded rear edge 83 .to facilitate movement of the work with respect to the nozzle. The nozzle is also provided with outlet slots, at its lower end, such as that shown at 8B for coating the inner side of the flap F, and formed between the body of the nozzle and a removable plate 82 which, as the nozzle is positioned in the machine, is in a substantially vertical plane. The other outlet slot for coating the base B of the channel is not shown in the drawing. It will be noted that this nozzle M is positioned in a depending relation to the machine and is inclined downwardly and forwardly with respect to the direction of movement of the work, as indicated by the arrow in Fig. 5. The flap is held against one side of the nozzle by the oscillating finger 36 and the operator must hold the bed B of the channel against the other side of the nozzle. This he is enabled to do with greater facility with the assistance of the creaseentering guide finger 59 which is able to follow variations in the thickness of the work and in the depth of the crease by reason of its mounting on the machine.

After the cement has been extruded from the nozzle 64, it is spread by a drag brush 9!), the bristles of which are trimmed to form a point 92; This brush is carried on an arm 94 which depends from the machine and is pointed downwardly and rearwardly in a direction opposed to the direction of movement of the work. As a consequence, the engagement of the work with the brush deflects the bristles radically, as shown in Fig. 5, so that they are held in firm engagement with the various portions of the channel and become more efiective in spreading the cement. It has been found by trial that brushes mounted in other positions with respect to the nozzle. do not spring back to the proper relation with respect to the nozzle after they have been utilized for a comparatively short length of time and, as a consequence, they become ineffective. With my novel arrangement, however, the bris tles are so radically deflected by engagement with the work that they readily spring back to their original position, shown in Fig. 3, when a piece of work is withdrawn and, consequently, are

equally effective on subsequent pieces of -work.-

This is true regardless of the effect of the sticky cement tending to hold the bristles in their defiected position. The bristles are held within a casing 96 having an upstanding shank 98 which is received within a recess in the arm 94 and held therein by a positioning pin I and a leaf spring I02. This arrangement, by allowing the brush to be deflected slightly, prevents jamming of the brush in the work and facilitates the presentation of the work to the machine. The shank 94 of the brush support may be adjusted vertically on a block I04 by a screw-and-slot connection I06 and the block H14, in turn, may be adjusted horizontally on a subframe by which the nozzle l4 and the flap-engaging finger 35: are carried, by a slot-and-screw connection l IIJ. These two adjustments, therefore, enable the brush to be brought to just the desired position with respect to the nozzle and permit this position to be changed when the bristles become worn.

In the use of the machine, the work will be presented to the nozzle i l with the flap F between the side of the nozzle and the finger 35. The operator will then. depress the treadle connected to the treadle rod 30, thereby bringing the guide finger 50 into the crease 52 of the shoe, starting the oscillation of the finger 36 and opening the valve I 6, as described in the above-mentioned patent. Movement of the shoe by the operator in the direction indicated by the arrow in Fig. 5 will cause successive portions of the channel to be presented to the nozzle and the deflected drag brush 9!], thereby eiiecting a complete and uniformdistribution of cement on the work.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a channel-cementing machine, a depending nozzle past which the work is moved progressively in a forward direction, means for extruding cement through said nozzle, and a spre brush associated with the nozzle on the forv. rd side thereof and pointed downwardly and rearwardly in a direction opposed to the direction of movement of the work.

2. In a channel-cementing machine, a tapered nozzle positioned on the machine to point downwardly and forwardly with respect to the direction of movement of the work presented progressively to the nozzle, means to extrude cement through the nozzle, a brush support on the machine, and a brush carried bysaid support pointed. downwardly and rearwardly in a direction opposedto the direction of movement of the work and toward the forward side of the nozzle.

3. In a channel-cementing machine, a rigid nozzle having outlet slots, means for extruding cement through said nozzle upon work moved forwardly past the nozzle, said slots being positioned-substantially vertically adjacent to the forward side at the end of the nozzle, and a pointed brush supported on the machine and inclined downwardly and inwardly toward that side of the nozzle farthest away from that side of the nozzle toward which the work approaches whereby the brush bristles will be radically defiected by contact with the work and will spread the cement applied by the nozzle over the whole area of the channel.

I4. In a channel-cementing machine, a rigid nozzlesupported on the machine in depending position with an outlet near its lower end, means for extruding cement through said nozzle as a piece of work is presented to it, a crease-entering work-guiding finger adjacent to said nozzle, and

means for supporting said finger for movement downwardly away from the nozzle end.

5. In a channel-cementing machine, a rigid finger, as the work advances, in accordance with the varying depth of the crease.

6. In a channel-cementing machine, a rigidly supported tapered nozzle, means for extruding cement through the tapered portion of said nozzle, a Work-guiding crease-entering finger, movable means for supporting said finger yieldably to permit automatic adjustment for variations in the thickness of the channeled sole, and operator-controlled means for yieldably moving said movable supporting means toward the work.

7. In a channel-cementing machine, a tapered nozzle inclined downwardly and forwardly with respect to the direction of movement of the work, means including a control valve for extruding cement through said nozzle, a drag brush associated with the forward side of the nozzle and pointed downwardly and rearwardly with respect to the direction of movement of the work; a pivoted support, a work-guiding crease-entering finger yieldably mounted on said support, and operator-controlled means for urging said support toward the work and for opening said valve.

JOSEPH BARBATI. 15

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