US1439615A - Perforating machine - Google Patents

Description

Dec. 19, 1922. 1,439,615. A. DE MARQUEZ. PERFORATING MACHINE.

FILED JULY 21.1921- I v Inlllll INVENTOR.

Patented fies. l9, lQZZ.

ii s iii.

ALBERTO DE MARQUEZ, or NEW YORK, 1v.

riinroaar'ilvfe MACHINE.

Application filedJuly 27, 1921. Serial No. 487,845.

To all whom it may concern Be it known that I, ALBERTO DE MAR UEZ, a citizen of Colombia, South America, residing at New York, in the county of New 5 York and State of New York, have invented certain new and useful Improvements in Perforating Machines, of which the following is a specification.

This invention relates to an electrical vibratorymachine for perforating paper and other materialparticularly for the purpose of forming stencil designs adapted for reproduction on fabrics which are to be embroidered.

The present machine is not limited to the foregoing use as it can be employed as a check protector, check writer, attached to a pantograph for making stencils to be used in reproducing maps and to put to other uses.

Heretofore electrical vibratory perforating devices have relied solely upon the puncturing action of a needle. in paper such as is commonly used for the making of stencils for the reproducing of designs cause a pressing up of the paper on its under side. Consequently, after the stencil has been used a few times, the pushed up margins of the punctures formed by the 30pneedle become pressed together and practically close the punctures, thereby preventing the stenciling effect from occurring at a number of points of the design and resulting in the stencil soon becoming worthless.

My invention dispenses entirely with the use of a pointed needle which merely punctures without forming clean cut perforations and in lieu of the well known pointed needle heretofore used, I provide a punch which forms a clean cut perforation or punch hole in the paper each time the punch vibrates. These perforations, while minute, are, nevertheless, clean cut and there are no pressed up margins which fill the holes. On the other hand, once the stencil is made according to the desireddesign, it is a permanent stencil which may be used for a large number of times and will enable a large number of stencils, all complete and distinct, to be had be- 50 fore the stencil wears out.

The punch is hollow and provided with an automatic clearing device to prevent the accumulation of punchings' and may be combined with a spring actuated presser foot adapted to bearon the paper to hold the paper down.

Needle punctures 1 v The machine may run directly on the surface of the paper whilethe latter is supported on a suitable bed such, for instance, as a piece of felt.

The presser foot may be provided with suitable guide faces which can run along the straight edge or rule so that straight lines may be accurately arranged.

Any suitable electrical vibratory means 5 may be employed for affording the reciprocatory or vibratory motion to the punch Any means may be employed to regulate the rate and amplitude of vibration of the punch. Electrical resistances, spring means, etc., may be used for that purpose.

It is to be understood, however, that the invention may be embodied in other formsv than the one shown anddescribed without departing from the essential principle involved and the disclosure is to be considered as illustrative, instead of restrictive, of the scope of the invention.

In the accompanying drawings:

Figure 1 is a vertical section of an embodiment of the machine which is adapted to run directly on the paper.

Fig. 2 is a plan view with certain parts in section, as indicated by the line 22, Fig. 1.

Fig. 3 is an enlarged section of the chuck,

punch, and clearing device of Figs. 1 and 2.

Fig. 4 is a detail view of the presser foot. The machine is carried by a base 1 having anti-friction ball casters 2 and a removable cover 3. The electrical vibrator comprises a magnet 4, an interrupter 5, and an armature 6 provided with contact spring 7, of

well known construction. The electrical vibrator is mounted on the base 1 and enclosed within the removable casing 3. Suitable binding posts 8 having circuit connections with the electrical vibrator. afford means for connecting the machine to-wires to a battery or to an ordinary electric lamp :socket, in which latter case a transformer may be employed but in each instance the punch is vibrated by the arm. 10.

The shank or stem of the punch appears at 11, the upper end of which has a detachable screw and socket connection 12 toaball and socket joint 13 by which the complete punch is connected to the arm 10. The detachable connection 12 permits quick and easy attachment of the stem 11 or removal from the arm 10. The stem 11 is provided with a chuck 13. ii. hollow punch 14 is held by the chuck 13. The lower end of this punch may be concave, as shown at 15. The stem 11 works in a-guide 16 which has an adjustalixle connection 1? with base 1.

For the purpose or clearing the punch 14 from the punchings made out of the paper from which the stem is being formed, 1 providea clearing pin 18 workig inside of the punch 14: and having a ball and socket con nection 19 with an arm 20 which is fastened. at 21 to an adjustable bracket 22.

The arm 10 and stem 11 may be enclosed in a suitable tubular casing if desired.

The bracket is adjust-ably connected to the base 1 at 24k so that like the guide 16, it may be moved outwardly or inwardly as desired and secured where positioned by the screw shown.

To the bracket 22 is hinged at 25, a presser foot 26 which has a guide 27 through which the punch l i operates. A suitable spring 28 bearing on the bracket and the presser foot 26, holds the latter down upon the paper so that as the machine is moved. over the paper (which may be considered to be represented by the line 29, Fig. 1), the presse toot holds down the area of paper defined by the opening arounc the guide 27 whi l'i areais to be punched, thus insuring against any pulling upwardly or displacement of the paper while the punching ogeration is go mg on.

The presscr foot 26 is provided with a polygonal edge composed of a plurality of straight surtaccs. By placing rule or straightedge R on the paper, any one of the edges 26 of the presser toot may be used to guide the inacl'iine so that itwill term a straight line extending in any desired di rection.

The lorni ot the invention shown is particularly adapted for use when the machine is to run ilireclly on the paper bci. a made into a stencil. ihe ball casters 2 ena le machine to be readily pushed by hand over the paper and the presser :loot 2b holds the paper down on the table. To enable the punch to readily pass through the paper, the paper may be laid upon a piece oi telt.

l l hat I claim is:

1. In a machine for perforating paper or other material, the combination with a movably mounted supporting base, of an electrical vibrator carried thereby, a punch operated by the vibrator and movable with the base, said punch being adapted for cutting the perforations in the paper or other material, a presser toot having a. movable connection to the supporting base atoresaid and mounted for up and down movement for engaging the paper or other material in the region where the punch operates thereon, and spring means for holding said foot down on the material being perforated.

2. In machine for perforating paper or other material, the combination with a movably mounted supporting base,-oi" an electrical. vibrator ca ried thereby, a punch operated by the vib 'ator and mo rable with the base, said punch being adapted for cutting the perforations in the paper or other material, a clearing device which is connected to the base and is stationary in relation to said punch and is adapted for removing the cuttings from said punch, and a presser toot through which the punch operates.

in a machine for perforating .paper or other materiahthe combination with a movably mounted supporting base, of an electrical vibrator, a punch operated thereby adapted for cutting the perforations in the paper or other material, and a clearing device which is stationarily mounted in relation to said punch and is adapted tor removing the cuttings from said punch.

4c. in a machine for perforating paper or other iterial, the combination with an electrical vibrator, ot a punch operated thereby tor cutting the perforations in the paper or other material, and a stationarily inoi'inted clearing device in relation to which the punch is slidable, adapted tor removing the cuttings from said punch.

in a machine for perforating paper or other material, the :ombination with an electrical vibrator, ot a hollow punch operated therebyadapted for cutting the perforations in the paper or other material, and a 'EliilOllarilv mounted clearing (i vice located inside ol the punch and in relation to which the punch is slidablc, said clearing device being adaptei'l for r running the cuttings from said punch.

In testimony whereof I ai'iiX my signature.

; ALBERTO on hlr-rRQUEZ.

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