US634602A - Cloth-rest for cloth-shearing machines. - Google Patents

Description

Patented Oct. |n,. r399. v

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w. F. AMBAcK & L. c. HOLLI CLOTH BEST FOR CLOTH SHE ARIN (Application Med, F025. 9, 1889.)

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UNITED STATES PATENT OFFICE.

WILLIAM F. AMBACK AND LEONARD o. HOLLINGWORTH, or rnovinnnon,

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CLOTH-REST FOR CLOTH-SHEARING MACHINES.

SPECIFICATION forming part of -I.etters Patent No. 634,602, dated October 10, 1899. Application filed February 9, 1899. Serial N0. 705,027. (No 11.0.1.

To all whom it may concern: I I Be it known that we, WILLIAMF. AMBAoK and LEONARD O. HoLmNewoRTH, of ]3rovideuce, in the county of Providence and State of Rhode Island, have. invented anew and useful Improvement in Cloth-Rests for Cloth- Shearing Machines; and we hereby 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 improvement inthe cloth-support in connection with feelers extending beyond the normal line of the stretched cloth in its passage over the cloth-rest.

In the automatically-adj ustable cloth-rests I of cloth-shearing machines the cloth has heretofore been depressed by arms or rolls and was at the opposite sides near the selvage brought in contact with serrated feelers by which the adj usting mechanism was operated.

These arms or rolls extended in front of the cloth, prevented free access to the cloth, obstructed the view of the cloth, and were liable to be lifted by the cloth, thereby preventing the reliable action of the feelers and accurate adjustment ofthe rest .to the selvage,

so as to prevent injury to the selvage by the cutters.

We have devised and constructed a cloth-.

rest in which the clothis not bent or guided out of the normal straight path as it passes to the cloth-rest, in which the rolls or arms are dispensed with, and in which the serrated feelers extend beyond the normal straight line in which the cloth passes to the cloth-rest, so

. as to raise the cloth sufficiently to secure the contact of the cloth and of the selvage with the feelers and insure the prompt and reliable action of the adjusting mechanism of the cloth-rest.

The object of the invention is to dispense with the rolls or arms used to depress .the cloth, secure a clear view of the cloth, simplify the construction, and secure a more prompt and reliable action of the automatic adjusting mechanism of the cloth-rest.

The invention consists in the peculiar and novel construction and'the combination of the parts whereby the selvage edges of the cloth are supported and made to operate the adjusting mechanism of the cloth-rest. Figure 1 is a side view of one end of a clothrest and selvage-guide for a cloth-"shearing machine, showing the improvement, Fig. 2 isa transverse sectional view of the same. Fig. 3 is a transverse sectional view of the same, showing modifications of construction. Fig. 4. is a side view of the ,selvage-guide adapted .to be secured to the bracket. Fig. 5 is an end view, and Fig. 6 a longitudinal sectional view, of a selvage-guide secured to the casing.

Similar marks of reference indicate corresponding parts in all the figures.

In the drawings, A indicates the slide by which the adjustable parts A at the ends of the cloth-rest are operated; B, the bracket secured to the slide A and forming the support for the cam-disk 0. The reciprocating'bar D is provided along its sides with ratchet-teeth, with which the cam-disk G engages on one side or the other to carry the bracket B and slide A outward to extend the cloth-rest or inward to contract the cloth-rest, as the variation of the selvage requires.

' E indicates in a broken line the path of the cloth as it passes (usually from a stretching-rolnto the cloth-rest; F F, the serrated feelers connected with the cam-disk (J. The serrated edges of these feelers extend beyond theline E against the cloth and against the selvage of the cloth and are carried by the cloth to swing upward and turn the cam-disk C to engage the same with the upper ratchet on the reciprocating bar D, thereby causing the slide A to be carried outward to extend the cloth-rest and selvage-support. When the selvage or edge eof the cloth leaves the feelers F F, the same drop down and cause the cam-disk O to engage with the lower ratchet 'on the reciprocating bar D, and thereby cause the slide A, the bracket B, the cam-disk C, and the feelers F F to be moved inward to contract the width of the cloth-rest.

InFig. 2 the feelers F are shown as made in one piece, while in Fig. 3 the feelers are shown provided with a slotted extensible outer piece secured by a clamp-screw, so that the serrated edges may be adj us ted to bear on the cloth and on the selvage more or less.

This modification forms the subject of a separate application, Serial No.705,088 ,filed February 9, 189.).

WVith the feelers constructed to extend beyond the normal line of the moving stretched cloth the edge of the cloth cannot move laterally over the feelers. To overcome this, we provide an inclined selvage-guide G in close proximity to the serrated edge of the innerof the feelers and connect this guide G with the bracket 13, as shown in Fig. 2, or with the cover H, as shown in Fig. 3, so as to move with the slide A and the'operative mechanism with every variation of the Width of the cloth. By this construction the strain on the cloth acts directly on the serrated edges of the feelers and insures the prompt and accurate adjustment of the cloth-rest.

Having thus described our invention, we claim as new and desire to secure by Letters Patent 1. In a cloth-rest and selvage-guide for cloth-shearing machines, in combination, a selvage-guide supported on the adjustable ends of the cloth-rest, said selvage-guide having an inclined surface extending above the normal path of the cloth and feelers extending beyond the normal line of the cloth; whereby the selvage-guide and the feelers move together with the selvage, as described.

2. In a cloth-rest for cloth-shearing machines, the combination of the following instrumentalities: a slide controlling the extensible ends of the cloth-rest, a reciprocating ratchet-bar, a cam-disk engaging with the ratchet-bar, a selvage-guide having an inclined surface extending above the normal line of the passing cloth and feelers connected with the cam-disk and extending beyond the normal line of the cloth; whereby the feelers act against the strained cloth andoperate the adjusting mechanism, as described.

In witness whereof We have hereunto set our hands.

Witnesses:

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

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