US1922140A - Channel cementing machine - Google Patents

Description

Aug. 15, 1933. F. RICKS CHANNEL CEMENTING MACHINE Filed Sept. 27, 1932 Patented Au 15,1933

UNITED STATES PATENT OFFICE CHANNEL consume meme Application September 27, 1932, Serial No. 635,083, and in Great Britain October 21,

13 Claims.

This invention relates to channel cementing machines and is herein illustrated as embodied in a machine well adapted for the application of such channels are turned back by the channel opening machine so that they will not interfere with the sewing machine. This channel opening is usually performed while the sole is in temper,

but before the time arrives for cementing down the channel flap again, the flap has usually become dry and hard and frequently wrinkled or crimped. Because of the irregular nature of the surface to which the cement is to be applied it has been the more usual practice to apply the cement to the channels, including the flaps, by means of a rotary brush, although machines have been provided for this purpose which employ solid rolls. When this is done, the problem of bringingthe wrinkled flap into contact with the applying roll becomes more acute. Accordingly, an important object of the present invention is to provide an improved machine for coating channels by means of an applying roll in which provision will be made for still better application of the cement, especially to the irregular surface of the channel flap.

To get adequate contact between the applying roll and the wrinkled channel flap, provision should be made for holding the flap against the roll. Accordingly, a feature of the invention resides in a machine organization comprising a channel-flap lifting or engaging tool and means 4 for imparting vibratory movement to the tool transversely of the channel. In the illustrated arrangement the flap lifting tool is oscillated rapidly toward and away from the flap so as better to coact with a wrinkled and curled flap gs ofa shoe sole. Provision is also made in the illustrated machine, in accordance with other features of the invention, for controlling the oscillations of the flap engaging tool,'for regulating the amplitude of oscillations thereof, for moving so the 'flap lifting tool bodily to an inoperative positionwhen' desired, and for permitting the flap engaging tool to yield bodily vertically to accommodate various positions of, or styles of, shoes.

In order to facilitate the application of cement both tc'the channelflap and to the channel bed,-

(Cl. 1H0) the applying roll of the illustrated machine is made as a ridged roll the angularly related peripheral surfaces of which are adapted to coat the flap and the bed of the channel respectively. Still another feature of the invention resides in the provision of a thread or stitch receiving groove around a ridged applying roll at the apex of the ridge therein. This avoids any possibility of the applying faces of the roll being held away from the surfaces to be coated by the stitches at the bottom of the channel.

These and other features of the. invention are described in the following specification and shown in the accompanying drawing in which Fig. 1 is a front elevation of the head of a machine, and

Fig. 2 is a view of the applying roll, taken on a larger scale.

The illustrated machine for coating the channels in the soles of shoes is of the type .shown in Letters Patent of the United States No. 1,851,162, granted March 29, 1932, upon an application filed in the name of John W. Cosgrove, deceased, to which reference may be had for a description of parts of the machine not herein fully shown and described. The application of cement such as latex to the channel 10 of the sole of a shoe 12 is effected by an applying roll 14 having upon its periphery two faces 15 and 17 (Fig. 2) at an angle to one another, each face sloping toward the roll axis and forming a ridge between them. This roll is mounted upon a shaft 16 journaled in a bracket 18 pivoted at 20 in the frame 22 of the machine. Power is supplied for driving the shaft through a train of gears 24 meshing with a gear 26 which is secured to the shaft 16 by a floating joint 28. The power for driving the train of gears 24 is delivered to the machine'through a shaft 30 having fast and loose pulleys 32 and 34.

Cement is supplied to the applying roll 14 by means of a grooved intermediate roll complementary to the roll 14 which ccacts with another ridged pick-up roll 42 which takes cement from a tray 44. The cement is kept at a constant level in the tray 44 by means 'of a barometric supply bottle 46, and a doctor roll (not shown) is provided as in the patented machine for controlling the thickness of the film of adhesive on the pickup roll, this doctor roll being grooved in the same way as the intermediate roll. The quantity of adhesive applied by the roll 14 may also be controlled by moving the bracket 18 carrying the roll 14 toward and away from the intermediate transfer 'roll 40. This substantially vertical movement of the applying roll is effected by adjustment of a hand screw 48 threaded through a depending arm 50 upon the bracket 18, the screw abutting against a stop 52 in the frame. The limit of upward movement is determined by a hand-adjusted stop screw 54 which is set by a hand wheel 56.

By means of the mechanism thus far described cement is applied both to the channel flap 58 and to the channel bed 59 of the sole of the shoe 12, the V-shaped formation of the roll 14 permitting it to be forced well into the corner between the flap and the channel bed or surface from which the flap was raised. If desired, the applying roll 14 may be corrugated or pocketed in order thereby to facilitate the application of just the required quantity of latex as the shoe is traversed past the applying roll by the operator.

Inasmuch as the opened channel flap of a leather sole is usually stiff, rather hard and crinkled, provision has been made in the illustrated machine for holding the flap 58 in firm contact with the outer face of the periphery of the applying roll by means of a flap lifting tool 60 mounted in a vibrating tool carrier 62 and movable toward and away from the flap and in a direction transversely of the channel 10. This tool carrier 62 is pivoted at 64 in an extension 66 of a bracket 68 secured by screws 70 to the upper face of the frame 22. The extension 66 is hinged to the bracket 68 by a pivot '72 and is held in normal or in inoperative position by a removable pin 74 passing through holes in the extension 66 of the bracket 68; When it is desired to move the flap lifting tool 60 entirely away from the applying roll 14 in order to clean the roll or to make adjustments to the machine, the pin '74 may be removed, allowing the extension 66 to belifted, after which the pin is replaced in the extension in a position to rest upon a notch in a projecting lug '76 formed upon the bracket 68, the parts then assuming the positions shown in dash lines.

Vibration of the carrier 62 to force the wrinkled fia; into firm contact with the lateral applying face 15 of the roll 14 is eifected by means of an actuating lever having at its lower end a roll 82 for engagement with a wavy cam face 84 on the driving pulley 32. The rapidity of the oscillations imparted insures contact of all portions of the flap with the applying roll while at the same time withdrawing the tool from the flap often enough so that there is no impediment to the feeding of the work. The lever 80 is connected to the tool carrier by a rigid link 86 and the amplitude ,of movement of the tool carrier may be changed by adjusting a pin 88 at the left end of the link 86 in a slot 90 in the tool carrier 62.

The connection of the rod 86 to the lever 80 is a yielding one, a spring 81 being housed between a collar 83 on the rod and the end of the lever 80. A nut on the end of the rod 86 holds the lever 80 against the spring 81. This yielding connection allows the tool 60 to yield in its vibrating movement should the thickness of a flap 58 between the tool 60 and the roll 14 require it. A spring 92 interconnecting the actuating lever 80 and a fixed point holds the roll 82 normally in engagement with the cam 84 and the design is such that when the machine is operated at the preferred speed the flap lifting tool 60 receives 1750 vibrations per minute. The actuating lever 80 is pivoted at 94 upon a second bracket 96 secured to the frame of the machine.

When it is desired to interrupt the vibrations of the flap lifting tool 60, or when it is desired to move the tool away from the applying roll 14 to facilitate the introduction of a piece of work, the operator employs a treadle 100 normally held in raised position by means of a spring 102, the treadle being shown in depressed position under the weight of the operators foot 104. The movement of this treadle is communicated to a bell crank lever 106 through a treadle rod 108. The bell crank lever is pivoted upon a second bracket 96 and provided with a link 110 slotted at its outer end loosely to engage a pin 112 upon the actuating lever 80. When the treadle is depressed as shown, the link 110, because of its slotted end, does not interfere with the oscillation of the actuating lever 80. When, however, the treadle is raised by the spring 102, then the link 110 draws the roll 82 of the actuating lever away from the cam face 84. The range of movement of the bell crank lever 106 is limited by the interengagement of a stop 114 thereon with 2. lug 116 on the bracket 96 or with an adjustable stop screw 118 also carried on an extension of said bracket.

Inasmuch as the angle of presentation of the shoe to the applying tool will be somewhat different in the shank of the shoe from what it is in the forepart and will also be different when the channel is of the American type, i. e., cut in from the peripheral edge of the sole, provision is made for mounting the flap lifting tool 60 so that it is bodily yieldable by providing in the tool supporting lever an elongated slot 120 through which the pivot pin 64 passes and providing in this slot a sliding bearing block 122 held up against the pin 64 by a spring 12 1 resting against an abutment screw 126.

Referring now to Fig. 2 the channel engaging roll shown has its front face 15 and its rear face 17 respectively at angles of 60 and 30 to the axis of the roll, this angular disposition being found generally convenient. The surfaces 15 and 1'7 are preferably broken up, so as better to convey coating material such as rubber latex and the like, by having, as shown, narrow grooves 130 out into them both radially across the sur faces and in circles concentric with the roll axis. The width of the surface 1'7 may vary according to the work being treated. soles being treated should have been channelled so that some measurable margin of sole be left outside the channel it usually is desirable to avoid the application of coating to such margin, in which case a roll having a rear face of lesser width will be employed.

In the roll shown in Fig. 2 the ridge portion between the faces 15 and 1'7 is provided with a semicircular hollow groove 132. When the work to be treated has been simply channelled, without a thread-receiving groove having been cut at its bottom, the thread used for stitching the sole generally stands up in the channel bottom (that is the apex of the angle formed between the sole margin or channel bed and the channel flap) as a bead, and in such an instance the groove 132 will receive the upstanding stitches of thread and, by bridging over them, will facilitate the even engagement of the faces 15 and 1'7 with the parts to be coated. Where the work has been grooved as well as channelled a groove such as 132 is usually If the channelled not necessary or even desirable, and a roll may the pedal 100 to allow the flap lifting tool 60 to be moved into contact with the work and to be rapidly vibrated by the cam face 84 on the pulley 32. The limit of downward movement of the treadle is determined by engagement of the lug 114 on the bell crank 106 with the lug 116 on the bracket 96, and in this position of the bell crank the slotted link 110-will not interfere with the oscillations of the actuating lever 80. The operator will cause the shoe to traverse the tool, moving it in one direction or the other depending upon whether he finds it more desirable to move the shoe contrary to the direction of movement of the lower face of the applying roll or in the same direction. Control of the quantity of cement applied is effected both by adjustment of the hand screw 48 and of the position of the doctor roll (not shown) whichcontrols the quantity of cement delivered to the intermediate roll 40 by the pick-up roll 42.

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

1. 'In a machine for cementing the channels of shoe soles, a coating applying member, a channel flap engaging tool, and means for imparting to the tool vibratory movement in a direction transversely of a channel engaged by the coating member.

2. In a machine for cementing the channels of shoe soles, a rigid coating applying member having surfaces adapted for simultaneous engagement with the flap and the bed of a channel in a sole respectively, and bodily yieldable vibratory means for forcing the channel flap into engagement with one of the surfaces of the applying member.

3. In a machine for cementing the channels of shoe soles, a rigid coating applying member having surfaces adapted for simultaneous engagement with the flap and the bed of the channel in a sole respectively, and a vibratory flap engaging tool movable toward and away from said flap adapted to force the channel flap into contact with one of the surfaces of said coating applying member.

4. In a machine for cementing the channels of shoe soles, a rigid coating applying member having surfaces adapted for simultaneous engagement with the flap and the bed of the channel in a sole respectively, a vibratory flap engaging tool movable toward and away from'said flap adapted to force the channel flap into contact with one of the surfaces of said coating applying member, and operator-controlled means for moving the channel flap engaging tool into and out of operative position independently of the manipulation of the shoe being presented to the machine.

5. In a machine for coating the channels of boots and shoes, an applying roll having angularly related peripheral surfaces and a power driven oscillatory flap engaging tool movable toward and away from a side peripheral surface of the applying roll to hold the flap in contact with said roll as the shoe is moved past the tool.

6. In a cementing machine, an applying roll for coating the channel of a shoe sole, a vibrating flap engaging tool for holding the flap in engagement with the applying roll, means for vibrating said tool comprising a spring for moving the tool into engagement with the flap, and a cam for drawing the tool away from the flap.

7. In a cementing machine, an applying roll for coating the channel of a shoe sole, a vibrating flap engaging tool for holding the flap in engagement with the applying roll, means for vibrating said tool comprising a spring for moving the tool into engagement with the flap, a cam for drawing the tool away from the flap, and operator-controlled means for rendering said cam ineffective.

8. In a machine for cementing the channels of shoe soles, an applying roll having angularly related peripheral surfaces adapted to coat the flap and the bed of the channel respectively, an oscillatory flap engaging tool movable toward and away from said flap, means for oscillating said tool, and means for varying the amplitude of the oscillations.

9. In a machine for cementing the channels of shoe soles, an applying roll having angularly related peripheral surfaces adapted to coat the flap and the bed of the channel respectively, an oscillatory flap engaging tool movable toward and away from said flap, means for oscillating said tool comprising a cam and a spring, and operator-controlled means movable between fixed limits to two positions, said means being operative in one position to permit oscillatory movement to be imparted to the tool and in the other position to interrupt the oscillatory movement.

10. In a machine for cementing the channels of shoe soles, an applying roll having angularly related peripheral surfaces adapted to coat the flap and the bed of the channel respectively, an oscillatory flap engaging tool movable toward and away from said flap, said tool being mounted upon a pivoted carrier, displaceable means for supporting said carrier, and means for holding said displaceable means in operative and in inoperative positions.

11. In a machine for cementing the channels of shoe soles; an applying roll having angularly related peripheral surfaces adapted to coat the flap and the bed of the channel respectively, an oscillatory flap engaging tool movable toward and away from said flap substantially in the plane of the axis of said applying roll, means for supporting said tool comprising a pivoted carrier, and a vertically yieldable pivotal support for said carrier.

12. In a machine for cementing the channels of shoe soles, a ridged applying roll having angularly related peripheral faces adapted to coat the flap and the bed of the channel respectively, said applying roll being provided with a peripheral thread receiving groove between the adjacent edges of said angularly related surfaces at the apex of the ridge, and means for supplying cement to said roll.

13. In a machine for cementing the channels of shoe soles, an applying roll having angularly related peripheral surfaces adapted to coat the flap and the bed of the channel respectively and a narrow peripheral surface interposed between said angularly related surfaces and forming an angle with each of them, and means for supplying cement to said roll.

FRED RICKS.

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