US1615639A

US1615639A - Copyholding device for typewriting machines

Info

Publication number: US1615639A
Application number: US14596A
Authority: US
Inventors: Lindburg Joseph
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1925-03-11
Filing date: 1925-03-11
Publication date: 1927-01-25
Anticipated expiration: 1944-01-25

Description

J. LINDBURG 7 Jan. 25, 1927; 1,615,639

CQPYHOLDING DEVICE FOR TYPEWRITING MACHINES Filed March 11, 1925 Patented Jan. 25, 1927.

UNITED srarss PATENTDFFICEQ JOSEPH LINDBURG, or BROOKLYN. new YORK, AssreNo To nnnnnwoon TYPE- WRITER COMPANY, OF NEW YORK, N. r, A CORPORATION OF DELAWARE.

GOPYHOLDING DEVICE FOR TYZPEWRITING MACHINES;

Application filed March 11, 1925. 'S'erial no. 14;.596.

sheet is fed line byline past a guidingplate.

In the applicat1on of J. A. B. Smith, Scrial No. 748,554, filed November 8, 1924, there is illustrated a copy-holder in which a copy sheet is inserted around a cylinder and is fed line by line by means of co-operating feed-rolls, past. a fixed guide plate at the dclivery side of said cylinder.

In this invention, there is provided a sectional cylinder designed to grip a copy-sheet at the leading edge thereof, which copy-sheet is then wound around the cylinder to brlng into view fresh lines'of copy past a line finding device in front of the cylinder.

One 01 the features of this invention relates to meanswhereby the copy-sheet may be quickly handled, by inserting the leading edge of the sheet between two sectlons of the cylinder, one of which is rockably mounted and forms a grippingjaw which bears upon the fixed section of the cylinder to grip the sheet. The fixed section of the cyllnder is revolubly mounted upon brackets Wl11Cl1 may straddle the machine to raise the copyholder near the eyes of the operator. The gripping jaw is normally held closed by the action of a spring and is provlded with mechanism'whereby the jaw may be swung open by depressing a lever operatively con-' nected to said jaw. There is provided a retwining spring to prevent accidental displace ment of the cylinder, said spring being shown in the form of aspider having prongs bearing upon the end of the cylinder.

Another feature of this invention relates to means tor squaring the copy-sheet previous to gripping the same between the jaws. To this end there is provided a step in the jaws which extends the full width of the cylinder and against which the leading edge of the (:opysheet is squared. The step in the jaws forms a straight edge which is parallel to the guiding edge of the front plate and thus provides an ahgmng base line for the copy-sheet; the-lines of print are presumably parallel to the leading edge. Othe1ffeziti1resand advantages will hereinafter appear.

In the accompanying drawmgs- Figure 1 is a fragmentary side view; in elevation, showing the copy-holder as applied to an Underwood combined typewriting and computing machine having a fantold attachment.

Figure 2 is a front View, in elevation, showing the copyholder straddling the machine and'the fan-fold attachment.

Figure 3 is a cross-sectional view through the line 3-3 of Figure 2,showing the gripping jaws in the open position.

Figure 4 is a diagrammatic View or the cylinder in its half turned position, showing the copy-sheet swung to the rear of the cylinder.

Figure-5 is an end view of the cylinder 011 the line 55 of Figure 2, showing the gripping jaw operating mechanism. I

Figure 6 is a fragmentary plan view, showing the gripping jaw operating mechanism.

This invention is illustrated in connection with an Underwood combined typewriting and computing machine having a fanfold attachment, such as that disclosed in the application of VVQF. Helmond, Serial No. 609,560, filed December 29, 1922, in which the copy-holder is mounted considerably higher than the machine, straddling the machine and the taii fold attachment in order to raise a copy-sheet 10 to a position in the path of the line of vision of the operator.

Said Underwood machine comprises a typewriter'll mounted upon a computing machine (not shown) which is operatively connected to the typewriter by means of a selecting mechanism 12. At the rear of the machine there is provided a'fan-fo1d attachment, which includessupport-ing brackets 18, a carbon carrier 14 and a handle 15 for operating the latter.

A cylinder 16 upon which the copy-sheet is wound is provided with a rockable section 17 extending longitudinally the full length of the cylinder. Said rockable section is builtinto the cylinder forming a part'thereof and is mounted upon supports 9.1 it will first be necessary to swing open the rock-able section as shown in Figure 3, and to this end, mechanism is provided which includes a lever 23 rockably mounted upon a stud 24: fast to the plate 19. The lever 23 is provided with a finger piece 25 forn'iing an integral part thereof and is 0peratively connected to a stud 27 by means of a slot 26.- The stud 27 is fast to the rockable section 17 through a clearance slot 28 in the plate 19, and is provided with a groove 29 carrying the spring 22 which is held under tension by a stud 30 fast to the plate 19.

Having gripped the copy-sheet by its leading edge, the cylinder is then rotated by means of a finger-wheel 31 fast at the end of a shaft 32 upon which the. cylinder is 1'0- tatably mounted. On the first half turn, the cylinder is swung from a position shown in Figure 3 to that shown in Figure 4. Atthis position of the cylinder the copy-sheet is thrown backwardly over a guide plate 33 which is provided with a half round edge 34 to prevent damaging the copy-sheet. The guide plate 33 extends the full width of the cylinder and is formed half round to guide the copy-sheet close to the cylinder up to the line-finding edge 35 which in this instance is the extreme edge of the plate 33, and is placed in front of the cylinder directly in the line of vision of the operative. The plate extends at the rear of the cylinder, upwardly and rearwardly, forming an inclined portion 36, and terminates with the downwardly turned round edge 34. Supporting the plate 33 there are provided brackets 37 at the ends thereof, which brackets are fastened to the plate by means of fasteners 38 and are in turn fastened to the supports 39 straddling the machine. As shown in the drawings the plate 33 may be ren'ioved from the main brackets by loosening the screws 40 normally holding the two brackets together.

liy further rotating the cylinder the first lines of copy will be brought to view past the finding edge 35 of the plate 33 as shown in Figure 5, and then successively new lines of copy may be fed as needed, either by means of the lingeawheel 31 or by mechanism coni'iecting the cylinder to another finger-wheel (not shown) but fully illustrated in said application of J. A. B. Smith. Said mechanism comprises a pair of bevel gears 4-1 and a second pair of bevel gears operatively connecting the shaft 42 to a second shaft upon which a finger-wheel near the keyboard of the typewriter is mounted.

In order to square the sheet previous to winding it around the cylinder so that the lines of print upon the sheet will appear parallel to the edge 35 and thus facilitate the finding of the line being copied, there is provided a longitudinal step 43 extending the full length of the cylinder which serves as a straight edge against which the lead-- ing edge of the copy-sheet is located.

The cylinder is prevented from accidentally rotating by a spider-spring lt at the end of the cylinder, which spider may be mounted fast upon one of the supporting brackets 37 and held against rotation on a shaft 45 supporting the cylinder. The prongs of the spring 44- bear upon the plate 19, thereby causing a retarding friction thereon and preventing the rotation of the cylinder unless this friction is overcome by a greater rotating force, such as' may be exerted by the linger-wheels when operated to advance the copy-sheet.

To facilitate the opening of the rockable section 17 and to prevent the cylinder from being rotated when depressing the finger piece 25 there is provided a second fing piece a6 fast to the plate 19 by means of screws 457, said finger piece i7 serving as a backing or support to prevent the rotation of the cylinder when the finger piece 25 is depressed.

It will be noted that means are provided in this invention to feed a copy-sheet around cylinder to successively bring into view lines of the copy past a line tinder, by winding the copy-sheet on the cylinder, and that means are provided to square and grip the copy-sheet by its leading edge upon the cylinder.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. A copy holder comprising a sectional cylinder with main and gripping sections, supports therefor in which the main section is pivoted, a plate rigidly attached to the end of the main section, the gripping section being pivoted on one side of. said plate, and means on the other side of the plate for oscillating the gripping section.

2. A copy holder comprising a substantial- .ly solid sectional cylinder with main and gripping sections, supports therefor in which the main section is pivoted, one of said sections having a step in its gripping face to square an inserted sheet preparatory for the gripping action, and means whereby the gripping section may be oscillated to receive and. grip a sheet of paper insertml against said stop.

3. A copy holder comprising divided. into a main section and a gripping section, a plate rigidly attached to one end of the main section and pivotally carrying the gripping section, a hand lever pivoted on the outer side of the plate and connected to the gripping section for operating it on its pivot.

4;, A copy holder comprising a cylinder a cylinder divided into a main section and a gripping section, supports for the cylinder, a plate on the end of the cylinder, a hand lever pivoted on the plate and connected to the gripping section for operating it, a finger piece rigid with the plate whereby oscillation of the gripping section without turning the cylinder is facilitated.

5. A copy holder comprising a substantially solid cylinder made up of a main section and a gripping section, supports for the cylinder and a pivoted connection between the main section and supports, a plate rigidly attached to the end of the main section and on which the gripping section is pivoted, a hand lever pivoted on the exterior of the plate and connections between said lever and the gripping section whereby operation of the lever may separate the sections, and resilient means with connections to the plate and gripping section for gripping a sheet of paper between said sections.

6. A copy holder comprising a plate, a sectional cylinder on one side of the plate, and means on the other side of the plate manually operable to operate the sections, said means including a spring to resiliently hold the sections in gripping relation.

7. A copy holder comprising a plate having a slot therein, a sectional cylinder consisting of a. main section and a gripping section on one side of the plate, and means on the other side of the plate manually operable to separate the sections, said means extending through said slot in the plate and including means to resiliently hold the sections in gripping relation.

8. In a copy-holder including a cylinder and means for supporting said cylinder over typewriting machine or the like, means for gripping a copy-sheet by its leading edge upon said cylinder, and means for squaring said copy-sheet by its leading edge.

9. In a copy-holder including a cylinder and means for supporting said cylinder over a typewriting machine or the like, means for gripping a copy-sheet by its leading edge upon said cylinder, and means for squaring said copy-sheet by its leading edge, said lastmentioned means including a slot in said cylinder forming a grip for the copy-sheet and the bottom of the slot forming a straight surface parallel to an axle upon which the cylinder is rotatably mounted.

10. In a copy-holder including a cylinder and means for supporting said cylinder over a typewriting machine or the like, means for gripping a copy-sheet by its leading edge upon said cylinder, means for squaring said copy-sheet by, its leading edge, said lastinentioned means including a slot in said cylinder forming a grip for the copy-sheet and the bottom of the slot forming a straight surface parallel to an axle upon which the cylinder is rotatably mounted, and means for rotating the cylinder to Wind the copysheet therearound to successively bring into view new lines of copy, past a linefinding device in front of the cylinder.

JOSEPH LINDBURG.