US99474A - Improved oil-cloth cotter - Google Patents

Description

door sans @wat @titille Letters Patent No. 99,47 4, dated February 1, 1870.

IMPROVED OIL-CLOTH CUTTER.

*wb-H The Schedule referred to in these Letters Patent.and making part of the same To all whom, it may con-cern Befit known that I, J oNAs RAUCH, of Selins Grove, in the eourity of Snyder, and State 'of Pennsylvania, have invented a new and valuable Improvement in Oil-Cloth iCutters; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation ofthe saine, reference being had to the annexed drawings, making apart of this specification, and to the letters and tigures'of reference marked thereon. v

Figure 1, ofthe drawings, is a side View of my iure'ntion;

Figure 2 is a top View; and

Figure 3 is a vertical longitudinal section ot' same.

Figure 4 is a transverse section.

My h iventionrelates to oil-cloth cutters, and consists, mainly, in the construction and novel arrangement ofderices, wherebyr apiece of oil-cloth may be secured to a platform, having a groove in it, to guide the dividingknile or cutter, which is arranged with pivoted guards or bars, oireach side of the blade, to v prevent the saine from beyond a certain depth.

The letter A, of the'drawings, designates the platform or groved plank. I

The groove `in which the knife-blade moves is marked e. 4

B represents a forked spring-plate, secured to the head ofthe board by a set-screw, b, and arranged to penetrating into the groove hold' that edge of the oil-cloth, at which 'the incisiony is commenced.

\Vith a view to keep the spring-plate B separated om the surface of the board A, two rubber cushionsr yr l1' areseated oneach side of the groove e. Thus the plate will always, when not pressed down by the thumb-screw, be raised sufficiently to admit of a ready insertion of the loil-cloth edge. In order to hold the platform, and prevent it from being drawn along by the traction ofthe-knife in the oil-cloth, the small spike a is fixed in` the end thereof.

To prevent the oil-cloth from turning sidewise, a second clamp, C, ,is employed, arranged to operate in the slot c' of Vthe platform, whereby it can be accomlinodated to oil-cloth of any width. l

The slot is expanded on the under side of the platform at n, and the llower plate of the clamp Gplays in this expanded portion ofthe slot.

The upper plate of the clamp is connected to the 'l Pivoted to the knife, y'on each side, are the guardbars c t', bevelled at their front lower corners, so that they willI not catch in any roughness 01' projection in the oil-cloth, but will slide readily on its surface. By

the use ofthese bars, the' bevelled end of the blade is kept from scraping the bottom of the groove, while, at the same time, the knife is prevented from penetrating too far in the oil-cloth, which is very apt to happen, on account of the great force and pressure necessarily exerted in cutting such material.

rlhe bars are pivoted, so that whatever be theangle at which the knife is held, they will lie iiat on the snr-V face ofthe oil-cloth.

\Vhat Iclaim'as my invention, and desire to secure by Letters Patent, is-

l. Incoiubinatiou with a platform,A,.having forked clamp B, clamp (1and guide-channel e', the knife K, provided with the guards r'r, pivoted to the sides of the blade, .and toothed back 1", for cleaning ont the groove of the platform, as specified.

2. The forked spring-clamp B, operated by a thumbsei-ew, and resting partially on the rubber cushions r o', as specied.

3. 'lhe knife K, provided with toothed back fr, and having the guard-bars 1,- r pivoted to the sides of the blade, as specified.

In testimony that I claim the above, I have here-l unto subscribed my name, in thepresence. of'two witnesses.

' Witnesses SAML. ALLEMAN, HORACE'ALLEMAN.

JONAS RAUCH.

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