US1558156A - Fabric-delivering mechanism for embossing presses - Google Patents

Description

Oct. 20,1925. v 1,558,156

' S. H. FORD FABRIC DELIVERING MEGHANISM FOR BIIBOSSING rnsssns med May 2, 1918 M4 MTORIIEV .r.

Patented Oct. 20, 1925.

UNITED STATES PATENT OFFICE.

STUART M. FORD, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO DURATEX CORPORA- TION, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

FABRIC-DELIVERING MECHANISM FOR EMBOS'SING FRESSES.

Application filed May 2, 1918.

To all whom it may concern:

Be it known that I, STUART M. FORD, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Fabric- Delivering Mechanism for Embossing Presses, of which the following is a specifi cation.

My invention relates to an embossing press, and more particularly to a mechanism for delivering the fabric in a loop to the press to enable the operator on the opposite side of the press to pull the fabric through easily between successive impressions, and also to guide the fabric so as to keep it always under the embossing plate.

The invention will be understood by reference to the accompanying drawings in which Figure 1 is a front elevation of an embossing press with the feeding mechanism attached, and Fig. 2 a side elevation showing a part of the press, the feeding mechanism, and a loop of the fabric to be embossed.

Referring to the drawings the numeral 1 designates a driven shaft on which is keyed a cam 2, which cam in rotating, operates a follower 3 in a vertical direction. The follower 3 is mounted on a shaft 1 which shaft is supported in blocks 5 adapted to move in guides 6. Pivoted to the base 7 of the press are toggle arms 8 which arms are also pivoted to arms 9 and 10 by pins 11. The upper ends of the toggle arms 10 are pivoted by pins 12 to the bed 13 of the press. The inner ends of arms 9 are pivoted on the shaft 4:. The head 14% of the the bed 13 against the embossing plate 15 fastened to. the head 14. Further rotation of the cam 2 causes the reverse action to take place when the bed 13 falls to its lowermost position. When the bed 13 is lowered, the fabric is drawn between it and the plate 15by the operator who stands on the opposite side of the press to that shown in Fig. 1, and to the left as shown in Fig. 2.

Serial No. 232,189.

The raising of the bed 13 presses the fabric between the bed and the plate thereby embossing the design on the fabric. Asv the bed again falls the fabric is pulled through and presents an uneinbossed section to the plate to receive the next impression.

The fabric delivery mechanism comprises a card-covered roll whose shaft 21 is supported in suitable bearings several feet in front of the press and somewhat above the level of the plate 15'. Running idly on shaft 21 is a sprocket wheel 22 which carries dogs 23, said dogs being held by springs 24 against the teeth of ratchet wheel 25 keyed on shaft 21. A chain 26 passes over sprocket wheel 22 and supports a weight 27 at one end. At its other end the chain 26 passes through a ring 28 over grooved idlers 29, 30, 31, and 32, through a ring 33, and at its end supports a weight 34 smaller than that of the weight 27. The idlers 29, 30 and 32, and the rings 23 and 33 are fastened to stationary parts of the press. The stud upon which idler 31 rotates is screwed into the slide block 5.

The weight 27 being heavier than the weight 34, the latter will be normally held against ring 33 thus serving to hold fast one end of chain 26. As the bed 13 of the press is lowered, the slide block 5, carrying with it the grooved idler 31, will also be lowered. This movement will draw down the chain 26 thereby rotating sprocket wheel 22 in a counter-clockwise direction so that the weight 27 will be raised. The rotation of sprocket wheel 22 rotates the roll 20 through dogs 23, ratchet wheel 25 and shaft 21, and thus feeds the fabric into a loop, as indicated in the drawing, between the roll 20 and the press. lVith the subsequent raising of the press bed 13, the slide block 5 is raised and with it idler 31. The slack in chain 26 thus formed, will be taken up by weight 27, rotating the sprocket wheel 22 in a clockwise direction, and causing the dogs 23 to pass idly over the teeth of ratchet wheel 25. Thus with each cycle of the press an amount of fabric is fed into a loop 36 equal to the amount drawn through the press at each impression.

To adjust the exact amount of fabric delivered at each cycle of the mechanism, an adjustable collar 35 is placed on chain 26 below the ring 28. With the raising of idler 81, the chain 26 will travel in the direction of weight 27 until collar 35 strikes against the ring 28, and any further slack in the chain 26 will be taken up by the falling of weight 3a. This also limits the number of teeth of ratchet wheel 25 over which the. dogs 23 will pass, and hence the extent of rotation of the ratchet wheel 25 and feeding roll 20 on the next lowering of slide block 5.

By reason of the slack in loop 36, the operator standing at the back of the press can easily draw the fabric through the opening between the bed 13 and the plate 15, or slide it sidewise to adjust any misalinement without the aid of a helper at the front of the press.

The rolls of fabric to be embossed run from sixty (60) to three hundred (300) yards and are relatively heavy, and the work of pulling directly from the roll through the press is not only irksome to the operator, but it requires more or less skill to properly manipulate the fabric to bring it into proper alinement. The present attachment, therefore, not only serves to pull the cloth from the roll by maintaining a constant loop or surplus at the front of the press of relatively small weight, so that it can be easily manipulated and alined by the operator standing at the back of the press, as being necessary for the operator to pull through the press an amount of fabric equal to the width of the plate. The adjustable stop 35, which cooperates with the lived stop 28, does not, of course, determine the amount of fabric which the operator pulls through the press at each cycle, but it does determine the amount of fabric in the loop 36, that is, there is maintained, when the stop 35 is once adjusted, a constant amount of fabric in the loop What I claim and desire to secure by Letters Patent of the United States is z 1. An embossing press having a fabricdelivering mechanism comprising a roll fast on a shaft, a ratchet wheel also fast on said shaft, a sprocket wheel loosely mounted on said shaft, ratchet feed dogs carried by said sprocket wheel, a freely suspended chain passing over said sprocket wheel, and means for moving said chain connected to the press bed for feeding the roll forward as the bed is lowered.

2. An embossing press having a fabricdelivering mechanism, said mechanism comprising a roll and a ratchet wheel fast on the same shaft, a sprocket wheel loose on said shaft, feed dogs carried by said sprocket wheel and engaging the ratchet teeth, a freely suspended chain passing over said sprocket wheel, a movable idler roll around which said chain also passes, said idler roll being mounted on the press bed, and means for raising and lowering said idler roll whereby as the press bed is lowered the said chain will be moved to feed the fabric forward.

.3. In an embossing press having a fabricdelivering roll and a reciprocating bed, mechanism connected to the bed of the press for intermittently actuating the roll to deliver predetermined quantities of fabric from the roll to the press, comprising a sprocket wheel loosely mounted on the roll shaft, clutch mechanism between the sprocket and shaft, an idler roll moving with the bed and a chain trained over the idler roll having one end relatively fixed and the other end passing over the sprocket wheel.

In testimony whereof I lnwe hereunto signed my name.

STUART M. FORD.

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