US3495530A - Hand duplicator - Google Patents

Description

Feb. 17, 1970 R. GLENN ET AL HAND DUPLICATOR Filed Aug 10, 1967 EDI/HT3EIM Wave 54 0a wave azzv/ MSW 4rraeA/iy United States Patent 3,495,530 HAND DUPLICATOR Robert Glenn, 7020 108th St., Forest Hills, N. 11375, and Victor Barouh, 935 Plum Tree Road, Westbury, N.Y. 11590 Filed Aug. 10, 1967, Ser. No. 659,671 Int. Cl. B41l11/08 US. Cl. 101-131 2 Claims ABSTRACT OF THE DISCLOSURE A hand duplicator for use in hectographing, employing spirit duplicating fluid and a master sheet secured to a roller by a pressure sensitive adhesive. The duplicator includes an applicator head secured to a squeeze bottle. The applicator head has a roller mounted thereon and a wick is so mounted on the applicator head so when placed over a surface at an acute angle', the spirit 'duplicating fluid is released onto the surface of a copy sheet, thereby wetting the sheet when the master sheet is passed over the moistened area it will release ink to give the desired effect.

This invention relates to a hand duplicator for hectographing and to a spirit master sheet adapted to be used with the hand duplicator which is attached thereto by means of a pressure sensitive adhesive.

The concept of this invention features the use of a hand duplicator for hectographing employing spirit duplicator fluid and a spirit master sheet secured to a roller on the applicator head of the hand duplicator by suitable means such as a pressure sensitive adhesive. The hand duplicator utilizes as a handle a squeeze bottle having an enlarged bottom.

It is an object of the invention to facilitate the hectographing of comparatively large numbers of copies while eliminating the necessity for complex mechanisms and for facilitating the typing directly onto a spirit master sheet which is then afiixed to a roller in a simple time saving manner by means of a pressure sensitive adhesive.

A further object of the invention resides in the pro-,

vision of a hand duplicator employing a squeeze bottle for a spirit duplicator fiuid which has an enlarged base so as to permit the convenient storage of the hand duplicator in a vertical position thereby preventing the spilling of fluid and the need for protecting the spirit master mounted on the roller.

Yet another object of the invention resides in the provision of a hand duplicator having novel means for transferring spirit fluid to the copy paper. In carrying out the invention, a wick is inserted in the mouth of a hand duplicator and contacts the copy paper in advance of travel thereof with the wick facing the surface of the copy paper in such a position as to assure the correct amount of fluid deposit on surface of said copy paper.

Still further objects and features of this invention reside in the provision of a hand duplicator especially adapted for addressing, maintenance of record cards, shipping and mailing activities, noticing meetings for associations, clubs, churches, or like organizations and otherwise adapted for use by commercial or private organizations for maintaining records and for sending out duplicate messages.

These, together with the various ancillary objects and features of this invention which will become apparent as the following description proceeds are attained by this hand duplicator, a preferred embodiment of which is illustrated in the accompanying drawing, by way of example only, wherein:

FIG. 1 is a vertical sectional view of the hand duplicator with parts thereof being shown in side elevation;

FIG. 2 is a front elevational view of the invention;

FIG. 3 is a plan view of a stencil sheet utilized as an important element of the invention;

FIG. 4 is an enlarged sectional detail view illustrating the spirit carbon mounted on the roller;

FIG. 5 is a perspective view illustrating the manner of operation of the invention; and,

FIG. 6 is an enlarged sectional detail view taken along the plane of line 6--6 in FIG. 3.

With continuing reference to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, reference numeral 10 is used to generally designate a hand duplicator embodying the concepts of the present invention. The hand duplicator includes a container 12 and an applicator head 14. The container 12 is preferably formed of any suitable plastic material such as polyurethane or polyethylene, and is in the form of a squeeze bottle 16 and having external threads 18 thereon for threaded reception with the internal threads 20 of the open end 22 of the applicator head 14. The squeeze bottle 16 is of a generally truncated conical shape and has an enlarged base or bottom 24 on which the hand duplicator may be placed when not in use. The squeeze bottle 16 is filled with a suitable spirit hectographing fluid 26 such as alcohol or the like.

The applicator head 14 has a mouth portion 28 which extends downwardly and forwardly at an angle of about 45 relative to the bottle 16 and end portion 22 and communicates with the open end 22 by means of a conduit 30. Within the head 14 there is a reservoir portion 32 of generally conical shape with which the conduit 30 communicates. The mouth 28 is provided with a recess 34 communicating with the conduit 30 and a wick 36 having a free end 38 and an end 40 is fitted in the recess 34. The wick 36 is bent back upon itself so that a bent portion 42 is immediately adjacent the conduit 30 so that within the mouth a double thickness of the fluid is present. This permits for optimum adjustment of the wick and also permits increased absorption of the spirit duplicator fluid by the wick at the conjunction with the conduit 30' and insures optimum delivery of fluid to the free end 38 of the wick. By means of a screw 44 a leaf spring 46 of an arcuate shape is arranged so as to resiliently engage the wick 36 and urge the wick 36 against the copy paper or the surface on which it is desired to print.

The roller 50 is mounted on a shaft 52 which is journalled in a pair of bifurcation 54 integral with the head 14 and depending below the mouth. The roller 50 is preferably made from hard rubber or a synthetic plastic substance having similar qualities and may be slotted as at 56 to receive the ends of the spirit master sheet 48 if such is desired. The slot 56 can be eliminated due to the fact that the master sheet 48 is secured on the roller by means of a pressure sensitive adhesive 58 which is provided on one side of the master sheet 60, the other side being coated with a suitable spirit carbon. A protective comparative thin plastic sheet 64 is initially secured in overlying position with respect to the pressure sensitive adhesve 58, and is removed after the desired material has been stencilled, preferably by a typewriter or other suitable means onto the master sheet 48.

In operation, after typing the suitable indicia or other material onto the master sheet 48, the plastic sheet 64 is removed and the master sheet is adhesively secured on the roller. Then, it is merely necessary to move the hand duplicator in the direction of the arrow 70, FIG. 5 so that the indicia 72 on the master sheet is transferred onto the card or sheet 74. After use, the hand duplicator may be placed on the base 24 of the squeeze bottle 16 until further use is necessary without fear of any leakage of fluid.

We claim:

1. A hand duplicator comprising a container for spirit duplicating fluid, an applicator head secured to said container, said head having an open mouth extending outwardly at an angle of substantially 45 degrees to the vertical, a wick mounted in said mouth, said head having conduit means therein communicating said mouth with said container for delivering fluid to said wick, a roller, means rotatably mounting said roller on said head, a master sheet, means for attaching said master sheet to said roller, and leaf spring means attached to said head and engaging said wick for urging said wick against a surface to be printed in advance of and simultaneously operable with said roller and master sheet.

2. A hand duplicator according to claim 1, wherein said means for attaching said master sheet to said roller includes a pressure-sensitive adhesive, said head being threadedly secured to said container, said container being a squeeze bottle having an enlarged base remote from said roller, said roller being disposed above said bottle.

References Cited UNITED STATES PATENTS SchWab 401-198 Schreyer 401198 Ostrander 401-198 Burke 101--131 Heyer et al 101--131 Parker 101131 Braznell et al. 101-395 X Schwartzman 401183 ROBERT E. PULFREY, Primary Examiner 15 C. D. CROWDER, Assistant Examiner US. Cl. X.R.

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