L. C. SOHWENSEN. PERFDRATING MACHINE, APPLICATION FILED MAR.14. 191.5.
Patented Dec. 1, 19%
L. C. SGHWENSEN. PERFORATING MACHINE.
APPLICATION FILED MAR.14,1913.
1,1 19,460. r Patented Dec. 1,1914.
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LOUIS C. SCHWENSEN, OF NEW YORK, N. Y.
Application filed March 14, 1913.
To all whom it may concern:
Be it known that I, LOUIS C. Scnwnxsnn, a citizen of the United States, residing in the city of New York, borough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in' Perforating-lllachines, of which the following is a specification.
While applicable for the formation of perforation for various purposes, and in various materials, my a paratus is designed more particularly to afford simple and effective means for making the stencil patterns used in the manufacture of clothing, embroidery, &c., and in stencils for decorative purposes and designs generally.
The invention consists in the construction and arrangement of parts herein described and claimed specifically, and illustrated in the accompanying drawings, in which,
Figure 1, is a side elevation of the apparatus; Fig. 2, a plan thereof; Fig. 3, a front elevation, partly broken away; Fig. 4, a View of the under side of the appar'atus; Fig. 5, a view of the lower end of the plunger and punch; Fig. 6, an end view of the punch; Fig. 7 a cent al longitudinal section thereof; Fig. 8, a section upon line 8--8 Fig. 4; Fig. 9, a detail of the electric controller.
The frame or carriage C, has a plurality of ball rollers 72, b, b, I), mounted in its base to facilitate travel freely in all directions over the surface of the aper or other material to be perforated. f our of these anti-friction rollers b, I), b, b, are used in the construction shown in the drawings, seated in recesses a, c, in the base (2, of the carriage C, and being held therein by a foot plate f, screwed to the under side of said base, as will be seen more particularly by reference to Figs. 4 and 8 of the drawings.
Springing from the base 0, of the carriage is the standard 0 on which the operative parts are mounted, the rear portion of said standard 0 being shaped in the form of a handle 0 with the finger opening 0*, in front thereof. Above the handle the standard is formed with a shelf or table 0', to which a small electric motor M, is attached; and mounted in bearings c, c, on the upper part of the standard infront of the motor table a", is a counter shaft 8, (see Fig. 1) to which is rigidlvattached a spur gear a, meshing with a driving pinion m,
Specification of Letters Patent.
Patented Dec. it, Serial No. 754,268.
mounted on the armature shaft m, of the electric motor M.
T9 the forward end of the counter shaft is rigidly secured a crank disk, (1, formed with a crank pin d, which carries a sliding block (2, positioned between ways 0', e, of the cross head 0, attached to the plunger p, mounted in guide bearings 0 0 on the front of the standard. The lower end of the plunger 77, is screw tapped to receive the threaded shank g, of the perforator Q, a lock nut being used to adjust and hold the perforator in )osition on the plunger 72, the perforator eing formed with the central passage 9, and lateral. extension thereof g, for the accommodation and discharge of the material detached from the paper or other material during the perforation there of, as will be clearly understood by reference to Fig. 7.
The rear anti-friction rollers b, I)", are preferably positioned substantially in line with the central transverse plane of the elec tric motor M, above, so that the weight of the latter maybe utilized as a counter-poise in tilting the carriage baclnvard on said rear balls I), b, for the purpose of withdrawing the perforator Q, from the material under treatment; and this tilting backward of the apparatus as indicated in dotted lines in Fig. 1, is provided for by making the heel c of the base 0, curved upward and backward as shown more particularly in said Fig. 1, so that the curved heel o not only admits of the rocking backward of the carriage C, but may be utilized as a support or rest for the same when so tilted in position.
The foot plate f, of course conforms at the rear to the shape of the heel c", of the base 0; and its front edge is formed with stripper toes f, f, which straddle the lower end of the perforator Q, when the latter is lowered, and act as retainers to prevent the material under treatment from following the upward movements ofsaid perforator Q.
As will be seen by reference to Fig. l, the handle 0 of the carriage C, is inclined forward, which fact not only adapts it to be conveniently and naturally grasped by the right hand of the operator, but also en-- ables the latter to exert forward pressure on the perforator if necessary in the treatment of thick material. Thus the carriage may be conveniently and naturally tilted forward or backward during manipulation in tit) fit)
perforating, facilitating the operators control of the apparatus under all conditions of use; and'in order to render this control still'more complete and perfect, I mount in the carriage C, underneath the motor table '0 a power-controlling switch R, operated means R, and I do not limit myself in this respect, the device shown in Fig. 9 being a simple illustration of means controlled by a single push button r, for alternately throwing the motor M, into and out of operative circuit, consisting in interposing in said circuit a ratchet wheel 7, having arms r (one for every other ratchet tooth) adapted to contact intermittently and alternately with a contact point a to close the circuit,the circuit being open during the interim i. e., between successive contacts of the arms 7, with the point r By this means the convenient and perfect control of the apparatus bythe right hand of the operator is rendered absolute so that most eitective results can be attained, and errors or imperfections in perforation avoided without the exercise of any special skill or experience on the part of the operator.
By my invention individual patterns heretofore used in the laying out of parts of garments, 620., may be dispensed with, the traced patterns or designs being marked oil on a large sheet of suitable material by means of perforations which admit of the use of powdered chalk or other suitable material in marking off the goods to be cut to pattern,
and the stencil thus produced being capable of use indefinitely. The application of the device to the production of flexible stencils for artistic and industrial designs forre production is also obvious.
What I claim as my invention and desire to secure by Letters Patent is,
1. In a perforating device of the character designated, the combination of a base provided with stripper toes extending in rent of the base to keep the paper down, a reciprocating perforator mounted thereon, a motor, a hand grip located on the base on a line with the axis of the motor, said base.
having a curved heel for the purpose of enabling the base-to be rocked to prevent perforating.
2.1m a perforating device of the charac-- ter designated, the combination of a base,
almanac a motor detachably mounted on said base, a countershaft supported on said base, a reciprocating perforator mounted on said base, a hand grip located on the base on a line with the axis of the motor, and means interposed between said motor and perforator including said counter-shaft for reciprocating the said perforator.
3. In perforating apparatus of the character designated, the combination of a carriage, a reciprocating perforator mounted thereon, an electric motor mounted thereon, and means interposed between said mo tor and said perforator for reciprocating the latter, said carriage being formed with. a base having a curved heel, and being provided with anti-friction ball bearings, two of which are in alinement with the transverse axis of the electric motor, for the purpose described.
4. In perforating apparatus of the character designated, a carriage, a reciprocatorye perforator mounted therein, a motor, means interposed between the motor and perforator for reciprocating the latter, said carriage having one end curved upward and backward and constructed to admit of the rocking backward of the carriage and to form a rest for the same when tilted.
5. In perforating apparatus of the character designated, a carriage, a reciprocatory perforator mounted therein, a motor, means interposed between the motor and perforator for reciprocating the latter, said carriage having one end constructed to admit of the rocking backward of the carriage and to form a rest for the same when tilted, and anti-friction ball bearings on said base two of which are in alinement with the transverse axis of the motor.
5. In perforating apparatus of the character designated, the combination of a carriage formed with a forwardly inclined rear handle with a finger opening in front thereof, a, reciprocating perforator mounted on said carriage, anti-friction ball hearings on said carriage two of which arein alinement with the transverse axis of the motor, an electric motor mounted thereon, and means intermediate between said motor and said perforator for reciprocating the latter, said carriage having one end formed to admit of the carriage rocking backward, and constructed to form a support for the same in tilted position, for the purpose described;
LOUIS .C. .SCHVVENSEN,
Geo. WM. MIATT, Lninmn Miami.