US2216608A - Paper guiding and holding mechanism for accounting machines - Google Patents

Description

Oct. 1, 1940. w ANDERSON 2,216,608

PAPER GUIDING AND HOLDING MECHANISM FOR ACCOUNTING MACHINES Filed Dec.- 30, 1938 2 Sheets-Sheet 1 INVENTOR.

WALTER A. ANDERSON ATTORNEY Oct. 1, 1940. I w A, ANDERSON 2,216,608

PAPER GUIDING AND HOLDING MECHANISM FOR ACCOUNTING MACHINES Filed Dec. 30, 1938 2 Sheets-Sheet 2 lll INVENTOR WALTER )LANDERSON t ATTO R N EY Patented Oct. 1, 1940 UNITED STATES PAPER GUIDING AND HOLDING MECHA- NISM FOR ACCOUNTING MACHINES Walter A. Anderson, Bridgeport, Conm, assignor 2;; to Underwood Elliott Fisher Company,

York, N. Y., a corporation of Delaware New Application December 30, 1938, Serial No. 248,427

1 Claim. 1 (c1. 197-139) This inventionrelates to paper carriages for accounting machines, and more particularly to means for guiding and holding the paper around the platen.

Frequently during insertion of rear fed paper around the platen, the paper catches on parts of the carriage. 7

It is an object of this invention, therefore, to provide a simple, inexpensive and effective means for insuring smooth feeding of work sheets around the platen.

Another object is to provide such a means, that is readily adjustable laterally of the platen to suit forms of different widths, and also adjustable toward or away from the platen to accommodate insertion of multiple forms.

With these and incidental objects in view, the invention consists in certain novel features of construction and combinations of parts, the

essential elements of which are set forth in appended claim, and preferred embodiments of which are hereinafter described with reference to the drawings which accompany and form part of the specification.

In the drawings:

Figure 1 is a perspective View of a carriage embodying the invention,

Figure 2 is a right side elevation showing a paper guide band adjusted to receive and hold a single Work sheet,

Figure 3 is a view similar to Figure 2, but with the band adjusted to accommodate a plurality of work sheets,

Figure 4 is an exploded perspective of the ad- 35 justable upper attaching means,

Figure 5 is a fragmental detail perspective of the adjustable lower attaching means,

Figure 6 is a fragmental perspective showing a modified form of the invention, and

Figure '7 is a detail sectional view of this modified form.

The invention is illustrated in connection with the type of carriage used on the machine disclosed in the application of Oscar J. Sundstrand, 45 Serial No. 581,800, filed December 18, 1931, and

is adaptable for use on the type of carriage disclosed in United States Patent No. 2,060,954, issued to Oscar J. Sundstrand on November 17, 1936, or on that disclosed in United States applications of Walter A. Anderson, Serial Nos. 92,164 and 192,675, filed July 23, 1936, and February 26, 1938, respectively.

Carriage in general 55 Referring to Figure 1, the carriage is mounted for movement along a track I. As the carriage moves from right to left, it is stopped in various columnar positions so that type bars (not shown) on the accounting machine may print on work sheets fed around a platen 2. The mechanism for tabulating the carriage from column to column and for returning it to its initial position is disclosed in application Serial No. 581,800. The plat-en may be rotated manually by knobs 3 secured to each'end of a platen shaft 4, and may be rotated automatically during operations of the machine by a feed pawl (not shown) cooperating with teeth on a rachet wheel 5 secured to shaft 4. The pawl and its operating mechanism is disclosed in Patent No. 2,060,954.

Mechanism for guiding and holding the paper In introducing the paper, it is passed downwardly over a paper table 6 suitably secured between the carriage side walls and having its lower edge terminating a short distance in back of the platen (Figures 2 and 3). The lower edge of the paper engages between the platen and paper feed rolls I mounted in cradles such as 8 pivoted on brackets such as 9 secured to the rear side of paper table 6. Rolls 1 are tensioned clockwise against the platen by springs such as I0. Upon a slight turn of the platen by knobs 3, the paper is advanced between rollers I and platen 2, and upon further rotation of the platen is guided under and around the platen by bands I I, preferably formed of narrow, thin, and yielding material. Bands II encircle the lower and forward portions of the platen and are secured at their lower ends to hooks I2 (Figure 2) slidably embracing a rod I3 secured between the carriage side walls. Each hook has a slot I4 in which is inserted a spring ring I5 that frictionally embraces shaft I3 to hold the bands in their laterally adjusted positions.

The upper ends of the bands fit within slots I6 provided in brackets I! (Figure 4) and are each provided with a pair of slots I8 through which pass screws I9 that thread into apertures 20 in brackets I1. Plates 2| of tempered spring material are secured on brackets I1 by rivets 22, and are each formed at their upper ends with lugs such as 23 and at their lower ends with clips such as 24 that embrace the upper and lower edges of a pap-er tear plate 25 (Figure 2). The tear plate is secured on a rod 26 pivoted at its opposite ends in the carriage side walls, and is provided at each end of its lower edge with a stud 21 that rests against a paper guide plate 28. The guide plate is provided at its opposite ends with rearwardly projecting lugs 30 that rest against paper table 6. Upstanding ears 29 on the ends of plate 28 are pivoted on rod 26 adja cent the carriage side plates. Lugs 30 and studs 21 serve to hold the plates in spaced relation and at proper angles (Figures 2 and 3) for deflecting the paper upwardly as it leaves the platen.

When single forms are to be inserted around the platen, bands II are adjusted by the screw and slot adjustment above described so that the clearance between the inner sides of the bands and the platen is just sufficient to permit smooth, easy insertion of a single sheet, as shown in Figure 2. When it is desirable to perform operations requiring joint insertion of several sheets, the bands are adjusted in the following manner. Brackets I! are removed from tear plate 25 by slightly depressing clips 24, then screws H) are loosened and the brackets slid upwardly in slots 16 a sufiicient' distance so that when the screws are retightened and the brackets replaced on the tear plate, the clearance between the platen and thebands accommodates the number of sheets to be inserted. Adjustment of the bands laterally, to suit the requirements of different width forms, is readily accomplished by detaching brackets l1, sliding the bands along rod l3 in accordance with the width of the form to be used, and replacing the brackets on the tear plate at the new locations.

In the modified form of the invention shown in Figure 6, the only variation in the structure from that above described is in the method of attaching the lower ends of the bands to rod l3, and in the provision of means which permits simultaneous adjustment of the bands around the platen. In this form of the invention, the lower ends of the bands are riveted to collars such as 3|, which are slidable on the shaft but feathered to it for rotation therewith. Upon rotation of shaft I3, each of the bands are simultaneously moved toward or away from the platen to provide the necessary clearance in accordance with the number of forms to be inserted. In this form of the invention, shaft l3 extends through the right carriage side wall and has fixed on its end a knob 32 for manual adjustment. A serrated disk 34, also fixed on the "shaft adjacent the right side wall, cooperates witha spring detent 35 to hold the bands in adjusted position.

While the form of mechanism herein shown and described is admirablyadapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form of embodiment herein disclosed, for it is susceptible of embodiment in various forms, all coming within the scope of the claim which follows.

What is'claimed is: f In a paper carriage, aplaten, a rotatable rod under the platen, a tear plate above the platen, a plurality of paper guides lying around the platen and having their upper ends supported on the tear plate, their lower ends being connected'to the rotatable rod so that rotation of the rod moves the guides toward or away from the platen to accommodate varying thicknesses of formsinserted around the platen, and manipulative means for rotating the rod.

WALTER A. ANDERSON.

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