US400321A - Machine foe creasing and cutting window shade cloth - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1 P. GAETH.

MACHINE FOR GRBASING AND CUTTING WINDOW SHADE OLOTEL. No. 400,821. Patented Mar. 26, 1889.

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F. GAETH. MAOHINE FOR ORITQASING AND GUTTINGVWINDOW SHADE CLOTH. No. 400,321. Patented Mar. 26, 1889.

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' NITED STATES PATENT OFFICE.

FRITZ GAETl-l, OF N EXV YORK, N. Y., ASSIGNOR TO F. L. HUN NINGHAUS &

CO., OF SAME PLACE.

MACHINE FOR CREASING AND CUTTING WINDOW-SHADE CLOTH.

SPECIFICATION forming part of Letters Patent No. 400,321, dated March 26, 1889.

Application filed August 1, 1888. Serial No. 281,638. (No model.)

.To aZZ whom it may concern.-

Be it known that I, FRITZ GAETH, of the city, county, and State of New York, have invented certain new and useful Improvements in Machines for Creasing and Cutting VVin- (low-Shade Cloth, of which the following is a specification.

The object of my invention is to furnish an improved machine for creasing and cutting window shade cloth, so as to prepare it for the hemming operation.

Heretofore window-shades were cut off from a roll of cloth and one edge of the same folded over and then hemmed on the machine at that end into which the shade-bar is to be inserted. Folding by the hand not only consumed time, but could not be made so regular that one shade was of equal length with the other. By my improved machine the creasing of one end of each shade as the same is cut off from the roll is accomplished immediately before cutting off the next following shade.

The invention consists of a machine for creasing and cutting window-shade cloth, which comprises a table provided with transverse grooves respectively for the folding and cutting knife, a transverse guide-frame, a vertically-reciproeating creaser having two edges, and a vertically-reciprocating cuttingknife located sidewisc of and parallel with said folder.

In the accompanying drawings, Figure 1 represents an elevation of one side of my improved machine for creasing and cutting window-shade cloth. Fig. 2 is an elevation of the other side. Fig. 3 is a plan; Fig. 4, a vertical transverse section on line 00 as, Fig. 3, drawn on a larger scale; and Figs. 5 and 6, respectively, a top view of the creased end of a window shade and a vertical section of the same, showing it folded up by the hemmer.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a table of any suitable length, over which the cloth from which the window-shades are to be cut is fed. At the center of the table A is arranged a transverse yoke-shaped supporting-frame,B, which is composed of upright end standards, I), and connecting top pieces, I), which are provided with a central re-enforcing rib, b and slotted guide-openings at both sides of the same. At one end of the table A are arranged suitable bearings for the roll of window-shade cloth, and near the opposite end of the table an adjustable gage, by which the proper length of the shades to be cut off from the cloth is regulated. These features are well known and are not illustrated in the drawings, as they form no part of this invention.

The transverse supporting-frame B serves to guide a vertically-reciprocating creaser, C, which is provided with two beveled creasingknives, d d, at such a distance from each other equal to the width of the creaser at the end of the shade, so as to provide a pocket ofsufficient width for the window-shade bar. The creaser C is guided in the end standards, I), and is provided with lugs at its upper edge,

said lugs being provided with pivots, which are engaged by the slotted lower ends of the elbow-levers C, which are, fulcrumed to the top part, b, and connected at their upper ends by a pivotrlink, C one of said elbow-levers being provided with a handle, C that is connected by a strong spiral spring, C, with the fixed stud of the top bar, I), as shown clearly in Figs. 1 and 3. By taking hold of the handle C and pulling it over toward the edge of the table the creaser C is lowered and the cloth provided with transverse creases by the creasing-blades. Below the creasing-knives is provided the bar E, having the transverse grooves d (1, into which the cloth is pressed by the creasing-knives. Parallel to and at a distance equal to the width of the hem to be produced at the end of the shade is arranged a vertically guided and oscillating cuttingknife, D, which is pivoted at one end to the supporting-frame B and guided at the oppo site end in a corresponding guide=opening of the standard b. The oscillating knife D is operated by a handle-lever, D, which is fulcrumed to the top part, b, the lower slotted inclined end of'the lever engaging a headed stud of the cutting knife D, as shown in Fig. 2. A spiral spring, D connects the handlelever, D, with a fixed stud on the top part, b.

By moving the handle 1) toward the edge of the table the knife is lowered and cuts off the shade, a transverse groove, 6, in the bar E furnishing a cutting-edge for the knife D.

The operation of my improved machine for creasing and cutting window-shades is as follows: The cloth is passed through below the creaser and cutter until the length of the shade is set oit in connection with the gage at one end of the table. The handle C for operating the creaser is then moved by the attendant and the creases imparted to the end of the next adjoining shade. The spiral spring connected to the handle returns the creaser into raised position, and the other handle is then operated and the shade cut off. The shade is then folded, as shown in Fig. 6, and hemmed on a sewing-machine; or the cut-off length or shades may be sold without hcmming, in which case the creases serve for finishing, folding, and hemmingat the end of the shade by the purchaser.

My impro\'*ed machine has the advantage that the creasing of the end of the next adjoining shade is done almost simultaneously with the cutting off of a shade, so that in the manipulation of creasing a preparatory folding is accomplished in a quicker and more reliable manner than by hand, so that the huishing of the end of the shade by folding and hennning is easily accomplished.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A machine for creasing and cutting window-shades, which consists of a supportingta-ble having a transverse bar provided in its upper surface with two parallel longitudinal grooves, a verticallyreciprocating creaser above said bar, and provided with two parallel creasing-blades that can pass into the grooves of the bar, and a vertically-reciproeating cutting-knife, all combined substan tially as set forth.

2. A machine for creasing and cutting window-shades,consisting of a supporting-table having a grooved transverse bar, a yokeshaped supporting-frame having guide-recesses, a vertically-reciprocati11g creaser, and a vertically-reciprocating cutter sidewise of and parallel to said creaser, substantially as set forth.

3. The combination, with a supporting-table having a grooved transverse bar, a transverse yoke-shaped supporting-frame, a vertically-reciprocating creaser, elbow-levers for operating said creaser, and a vertically-oscillating cutting-knife operated by a fulcrumed and spring-actuated elbowlever, said knife being located sidewise of and parallel to the creaser, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

. FRITZ GAETIEI.

\Vitnesses:

PAUL GOEPEL, CARL KARI

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