US634603A - Rest for cloth-shearing machines. - Google Patents

Description

No. 634,603. Patented Oct. [0, I899. W. F. AHBABK G. L. C. HULLINGWORTH.

REST FDR fiLOTH SHEARING MACHINES.

(Applicution filed Feb. 9, 1890.)

(llo Model.)

IN VENT 5E5.

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UNITED ST TES PATENT OFFICE.

WILLIAM F. AMBACK AND LEONARD C. I'IOLLINGW'ORTH, OF PROVIDENCE,

RHODE ISLAND.

' REST FOR GLOTH -SHE'ARlNG MACHlNESr srncrrlon'rron r mhing int of statement nojes gcoe, dated October 10, 1899.

" Application filed February a 1839. s en No. 705,088 m mas.

To aZZ whom it may concern.- Be it known that we, WILLIAM F. AMBAOK and LEONARD O. HOLLINGWORTH, of Provi-' 'dence, in the county of Providence and State of Rhode Island, have invented 'a' new and useful Improvement in Rests for Oloth-Shearing Machines; and wehereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to an im provement in the mechanism by which the ends of the cloth-rest are automatically adjusted to the width of the cloth, so that the whole width of the cloth is exposed to the cutter, while the selvage of the cloth is .kept from contact withthe cutters.

As heretofore constructed the cloth was guided onto the feelers operating the adj ustable rest and held against the same by arms or rollers and the serrated edges of the feelers moved in the same segmental path below the normal line of the cloth. As theeondition of the selvage differs in different weaves, some selvage being more slack than others, the feelers as heretofore constructed did not control the rest as promptly as is desired to secure the shearing of the cloth uniformly up to and along the edge of the selvage.

One object of this invention is to dispense with the arms or rollers for holding the cloth to the feelers and secure a clear view of the cloth as it passes over the rest.

Another object of the invention is to ad just the feelers to the varying condition'of the selvage.

The invention consists in the peculiar and novel construction whereby the feelersmay be adjusted to the cloth and the selvage and to move in a path beyond the normal path of the stretched cloth.

Figure 1 is a front view of the automatically-adjustablev cloth-rest, showing the same with the cover removed. Fig. 2 is a transverse sectional view of the same, showing the feelers adapted ,to swing above the normal line of the cloth and the selvage. Fig. 8 is a side view of the cam-plate, showing the serrated feeler-plates cooperating with the same. Fig. 4 is a side view of the cam-plate and the serrated feeler-plates as viewed from the side opposite to the View of Fig. 3. Fig. 5 is a sectional .view of the cam-plate and the adj ustable feelers cooperating with the same.

Inthe"drawing's,A indicates the sliding sections of the cloth-rest controlled by the slide B. The bracket Ois adj ustablysecured to the slide B. A ratchet-barD, provided with ratchet-teeth on each edge, is placed in ways on each end of the rest, and these ratchet-bars are connected with mechanism by which they are continuously reciprocated. The cam-disk Eis pivotally supported on the bracket 0, so that the cams may engage with the ratchets on the opposite sides of the ratchet-bar D. The casing F incloses the mechanism and forms the support of the cloth. The broken line f indicates the line of the cloth as it passes to the cloth-rest.

So far as above described the cloth-rest is in construction and operation the same as the cloth-rest shown and described in United States Patent No. 598,264, of February1,1898, to Leonard O. Hollingworth, with the arms bywhich the cloth is held against the feelers segmental convex shield G, so that the selvage is guided onto the serrated feeler G and prevented from entering the space between the two feelers.

By the use of the extended feelers the serrations of the feelers are brought in contact with the stretched cloth as it passes to the rest without the use of the rollers or arms extending across the front of the cloth and without deflecting the cloth, the view of the cloth is unobstructed, and the cloth may be more readily placed on the machine.

By the use of the independently-adj ustable feelers the serrated edgesof the feelers can be adjusted to the condition of the selvage,

the feeler G being projected beyond the feeler E for loosely-woven selvage, so as to maintain the desired contact with the selvage, and the cloth-rest may be adapted to secure the best results with cloth having tight or slack selvage. I

Having thus described our invention, we claim as new and desire to secure by Letters Patent-- 1. In a cloth-rest for cloth-shearing machines, the combination with the reciprocating ratchet-bar and the cam-disk, of two serrated feelers, adjustable toward or from their pivotal support, independent of each other and adapted to swing into the normal path of the cloth as it passes to the rest; whereby the feeler may be adjusted to the cloth and the selvage, as described.

2. In a cloth-rest for cloth-shearing machines, the combination with the mechanism In Witness whereof We have hereunto set our hands.

WILLIAM F. AMBACK. LEONARD O. HOLLINGWORTH. Witnesses:

J. A. MILLER, J r., B. M. SIMMs.

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