US2006609A - Copyholder - Google Patents

Description

y 1935. R; v. STREETER 2,006 609 COPYHOLDER Filed Aug; 27, 1934 r INVENTOI? g 9 RALPH 14577255752 I if BYHIJ' ATTORNEYS Patented July 2, 1935 UNITED STATES COPYHOLDER 7 Ralph v. Streeter, St. Paul, Minn. Application August 27, 1934, Serial Ne. 741,644

6 Claims; ((1120-32) My invention relates to devices for holding a copy sheet and particularly to a device for successively bringing various portions of such a sheet into view.

It is an object of my invention to provide a novel, compact copy holding device capable of being conveniently operated to successively bring into view lines of written or typewritten matter on a sheet.

Another object is to provide such a device having a sheet carrying roller in which means is provided for gripping one end of a sheet.

Stillanother object is to provide such a device having key operated means for rotating the roller through a predetermined angle for each operation of the key wherein the roller is free for rotation when the key is in its normal position.

Yet another object is to provide such a device 1 wherein all movement of the roller will be positively stopped at the termination of an operation regardless of how violently or how gently the operating means is manipulated;

A further object is to provide such a device including means for spotting lines of written or typewritten matter on a sheet and exerting a frictional drag on the sheet to keep the same tightly stretched about the periphery of the roller.

A still further object is to produce such a device of simple, rugged and inexpensive construction and adapted for use in close cooperation with a keyboard such as the keyboard of a lino type machine.

These and other objects and advantages of the invention will be more fully set forth in the following description made in connection with the accompanying drawing, in which like reference characters refer to similar parts through out the several views, and in which:-

Fig. 1 is a top view of my copy holder;

Fig. 2 is a vertical transverse sectional View, drawn to an enlarged scale;

Fig. 3 is an end view with the end cover removed, drawn to a slightly enlarged scale and showing the operating mechanism in normal position; l

Fig. 4 is a similar view to Fig. 3 except that the operating mechanism is shown in operated position, and

Fig. 5 is a perspective view of my copy holder; drawn to a reduced scale, in cooperative relation with the keyboard of a linotype machine.

Referring to the drawing, my copy holder includes a cylindrical roller 6, means for housing and revolubly supporting the roller, means for rotating the roller and means for attaching sheet of paper to the roller.

A combined frame and housing is constructed as follows: A'pair of similar, relatively heavy end walls or plates 1 and 8, shaped as shown in Figs. 2, 3 and 4, are vertically disposed in parallel relation to each other spaced apart a dis- ATE OFFICE? 1 tance slightly. greater than the length of the roller 6. A front plate 9 extends between and. is securedto the slightly curved front edges of the respective end plates 1 and 8 and a rear plate l8 extends between and is secured tothe curved rear edges of the respective end plates 1 and 8..

The front and rear plates 9 and I0 obviously rigidly maintain the end plates 1 and 8 in the relative positions thereof previously described.

At the respective ends of the roller 6, outwardly projecting shafts or journals H and I2 are formed integrally and coaxially with the roller 6. The shafts H and I2 are respectively 'journaled. in

substantially centrally located apertured' por-' tions ofthe end plates 1 and 8 with roller fidisposed between the end plates 1 and 8 and between.

the frontand rear plates 9 and ID. The endplates 1 and 8 are of such dimensions that the front and rear plates 9 and 18 are spaced from the periphery-of the roller 6.. The journal ll' projects ashort distance outwardly of the end.

plate 1 for a purpose to be described and the journal 12 terminates substantially flush with the outer side of the end plate 8. A knob 13 is mounted on a small shaft I4 secured in an aperture in the shaft I2 in coaxial and outwardly extending relation to the shaft l2.

Between'the upper edges of the front and rear plates!) and [8 the upper portions of the end. plates 1 and 8 are cut away to leave curved edges inclined for counterclockwise rotation of the curved periphery of the roller 6.

A step by step operating mechanism for rotating the roller 6 through successive equal predetermined angles is mounted on the end plate 1 and. associated with the projecting portion of the shaft l l. A ratchet l5is mouted on the projecting portion of the shaft l I with its teeth suitably inclined for counterclockwise rotation of the ratchet as viewed in Figs. 3 and 4.

Anoperating lever 18 having a finger piece IBa formed on its free end is pivotally mounted at its rear or remaining end on a headed pivot screw Ifib projecting outwardly from the lowerv rear portion of the end plate I. The lever 16 is lo-- cated below the ratchet I5, is swingable in a vertical plane between an upwardly and forwardly extending normal position and a substantially horizontal operated position. A stop screw. I'l extending outwardly from the end plate 1 and having a compressible shock absorbing collar Ila thereon isv suitably positioned to limit upward movement of the lever l6 as shown in Fig. 3. A second stop screw l8 extending outwardly from the end plate .1 is suitably positioned to limit. downward movement of the lever l6 as shown in Fig 4, Obviously, the stopscrews H and. I8

limit the movement of the lever I6 to movement within a fixed predetermined angle.

relative thereto. The pawl extends upwardly.

and somewhat rearwardly from the pivot pin H and at its upper end has a tooth 20b normally closely adjacent the toothed periphery of the ratchet. I5 and adapted for engagement therewith. l

' A helical tension'sprin'g 22. is connected at its respective ends to' a spring. anchoring eye 26c formed on theupper end of the pawl 20 .and a spring anchoring element 23 projecting from the outer side of the upper rearportion of the end plate 1. Thespring anchoring element 23 issolocated that the spring 22 will pull the pawl.

26 and the lever I6 to their upper limits of move-. ment and will normally hold the tooth 20b out of engagement with but closely adjacent to the ratchet I5 as shown in Fig. 3.

' As the lever I6 is depressed against the tension Iof the spring 22 the pawl tooth 20b is brought into engagement withtheratchet I5 and completionof movement of. the lever I6 toward its lower limit ofi'movement results fin the-pawl 20 being drawn downwardly torotate' the-ratchet I5 throughan angle correspondingto thedistance between adjacentteeth of. the ratchet. An abut ment element 20d is formed on'the rearside of the pawl 20 for cooperationewith asecond abut-- ment element I9a comprising the rear portion of the upper side. of thelugIQ. The. abutment elements 20d and I9a..are arranged to abut each other as shown in Fig. 4 when the lever I6reaches its lower limit of movement so as to then prevent rearward swinging of the pawl 26 relative to the lever I6. Restraint of the pawl 20 from. rear-v ward movement causesthe tooth 26bof. the pawl 20 to be positively retainedin a position between two adjacent teeth of the ratchet I5 so as to positively. prevent further rotation of the ratchet I5 after the lever I6 hasreached its lower limit of movement even though thelever I6 has been swung downwardly with sufiicient violence to store considerable energy in the roller 6.

When the lever I6 is released after an operation thereof the spring 22 returns the lever I6 and the pawl20 to-their normal positions shown in Fig. 3. The pawlI20, when in its normal position, is completely out of eng'agementwith the ratchet I5 andihence the roller 6 .is free for rotation by means of the knob I3 if desired. r

Obviously the above described roller rotating mechanism positively limits the roller 6 to rotation through only a fixed predetermined angle.

for eachoperation of the lever I6and, when the lever I6 is in its normal position, leaves. the roller 6 free for rotation by means of the knob I3 through any desired angle.

A cover 24 of suitable shapeandsecured to the end plate I is provided to enclose the entire step by step roller operating mechanism except the finger piece I6a of the lever- I6 and the lower stop screw I6. The cover 24, is, of course, suitably cut away to permit free movementof the lever At one portion of its periphery the roIIer 61isaxis of the roller.

provided with means for holding one end of a sheet of paper which is wrapped about the periphery of the roller. At the portion referred to on its periphery the roller 6 is provided with a groove 25 of substantial width and depth and extending through the greater portion of the length of the roller parallel to the longitudinal stepped as at 25a so that the rear portion of the -groove25 (when the grooved portion of the roller 6- is uppermost) is slightly less in length than the.

front portion. A rock shaft 26extends in and longitudinally of the groove 25.just forward of the step 25a and is journaled at its respective ends in apertures in the respective end portions of the roller beyond the endsof the groove-25.

I A clamping plate 21', lying in groove 25. and hav-- ing a shape similar to but slightly smaller. than the groove, is secured to the shaft 26 alonga line parallel to and slightlyrearwardly of. the

longitudinal center line of the plate 21 by means. of ears 21a formed integrally with the plate 21 and bent to encircle the shaft 26. A helical torsion spring 28 is wound about the shaft 26 and anchored at its respective ends to the plate 21 and the portion of the roller 6 defining the bottom of. the groove 25 so as to urge the forward portionof the clamping plate 21 towardtheiroller 6. Pressing the rear portion of the plate 21 to-' ward the. roller, 6 will raise the forward portion thereof outwardly'away from the roller 6 againstthe tension of the spring 28.

A block 29 of compressiblematerial suchias spotting a line of indicia such as written or type-.

written matter on the sheet is provided. A rod 30 extending parallel and closely adjacent to and just inwardly of the upper edge portion of the front plate 9 isjournaled at its respective ends in suitable apertures in the end plates 1 and 6 for rocking movement therein. A rearwardly and upwardly curved guide plate 3| extending through'substantially the entire distance between the end plates 1 and Bis, secured along its lower and forward edge to'the rod 30. The upper and rear portion of the curved plate 3| bears against the periphery of theroller 6 or against, a sheet of paper P wrapped about the roller 6 as shown. in Fig. 2. A helical torsion spring 32 is wrapped about the medial portion of the rod 30 and bears at its respective ends against the guide plate 3|. and the front plate 9 to urge the rear portion of the guide plate 3I toward the roller 6. An operating element or finger plate ,33, formed inte-, grally with the guide plate 3| extends substantially upwardly from the rod 30 for use in rocking the guide plate away from the roller 6.

The guide plate 3| functions to frictionally en-; gage a sheet of paper P disposed on' the roller 6 and to yieldingly restrainthe sheet against movement with the roller 6 as the roller 6 isrotated thus keeping the sheet relatively tightly stretched over the periphery of the roller 6. The upper rear edge 3Ia of the guide plate 3| functions as a guide edge to setoff or mark a line of written; or typewritten matter on the sheet P.

' The lower side of my device is suitably shaped to permit placing, the device onra .linotype ma:

'I'he'ends of the groove 25 are chine just above and behind the keyboard K thereof as shown in Fig. 5, whereby the portion of a sheet P on the upper side of the roller 6 is clearly visible to the operator of the machine and the finger piece a and knob 13 are conveniently accessible to the operator.

In normal use of my copy holding device the top marginal portion of a sheet upon which copy is written is clamped between the forward end of the clamping plate 21 and the knob I3 is turned to rotate the roller 6. The roller 6 is turned through approximately one revolution to wrap the sheet around the roller 6 and bring the uppermost line of copy into a position just rearwardly of the guide edge 3la. The next following line of copy is obviously concealed from view by the guide plate 3| and the remaining lines of copy are concealed within the device. When the linotype operator has finished copying the first line of copy he depresses and then releases the finger piece [6a to rotate the roller 6 through the predetermined angle previously referred to and thus brings the next line of copy out of concealment under the guide plate 3| into view immediately rearwardly of the guide edge 3 la. This procedure is repeated for each successive line of copy.

To remove the sheet from the device when all the matter thereon has been copied the knob I3 is manipulated to bring the roller 6 into the position shown in Fig. 2. Then by pressing the rear portion of the clamping plate 21 the sheet is released and may be withdrawn from the device. Depressing the finger plate 33 will raise the guide plate 3| from engagement with the sheet and facilitate removal thereof from the device.

It is apparent that I have invented a novel and simple copy holder adapted for close cooperation with a keyboard such as that of a linotype machine and capable of convenient and positive operation to bring into view one line of copy at a time. It is also apparent that my device is well adapted for use with keyboards other than those of linotype machines and with equipment other than keyboards.

It will, of course, be understood that various changes may be made in the form, details, proportions and arrangement of the parts, without departing from the scope of my invention, which generally stated, consists in a device capable of carrying out the objects above set forth and in the novel parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:-

1. In a copy holder, a revoluble member, a ratchet secured thereon, a pawl engageable with said ratchet, means for engaging said pawl with said ratchet and moving said pawl through a predetermined distance to rotate said ratchet through a predetermined angle and locking means rendered operative by said pawl moving means at completion of its movement for positively holding said pawl in engagement with said ratchet until said pawl moving means has been moved toward its initial position.

2. In a copy holder, a revoluble member, a ratchet secured thereon, a pawl engageable with said ratchet, means for engaging said pawl with said ratchet and moving said pawl through a predetermined distance to rotate said ratchet through a predetermined angle and a pair of cooperating abutment elements one of which-is located on said pawl, said abutment elements being arranged to abut each other when said pawl has been moved through said predetermined distance to hold said pawl in engagement with said ratchet until said pawl moving means has been moved toward its initial position.

3. In a copy holder, a revoluble member, a ratchet connected thereto, an operating lever mounted for swinging movement through a predetermined angle, a pawl connected with said lever and positioned for engagement with said ratchet as said lever is operated and to rotate said ratchet as movement of said lever is completed, and a pair of abutment elements associated with said pawl and arranged to abut each other as movement of said lever is completed to hold said pawl in engagement with said ratchet until said lever has been moved toward its unoperated position. a

4. In a copy holder, a revoluble member, a ratchet connected thereto, an operating lever mounted for swinging movement through a predetermined angle, a pawl connected with said lever and positioned for engagement with said ratchet as said lever is operated and to rotate said ratchet as movement of said lever is completed, and a pair of abutment elements one located on said pawl and the other located on said lever, said abutment elements being arranged to abut each other as movement of said lever is completed to hold said pawl in engagement with said ratchet until said lever has been moved toward its unoperated position.

5. In a copy holder, at revoluble member, a ratchet secured thereon, an operating lever mounted for swinging movement between predetermined limits, a pawl swingably mounted on said lever and positioned and arranged for engagement with said ratchet as said lever is moved toward its operated position, yieldable means urging said pawl out of engagement with said ratchet and said lever, toward its unoperated position, and a pair of abutment elements located respectively on said pawl and said lever and arranged to abut each other as said lever approaches its operated position to hold said pawl in engagement with said ratchet until said lever has been moved toward its unoperated position.

6. In a copy holder, a revoluble member, a ratchet secured thereon, an operating lever mounted for swinging movement between predetermined limits, a pawl swingably mounted on the medial portion of said lever and extending away therefrom at substantially right angles in the plane in which said lever swings, said pawl being positioned for engagement with said ratchet, resilient means urging said pawl longitudinally in a direction away from said lever and acting to normally maintain said lever in an initial position at one of its limits of movement and a pair of cooperating abutment elements respectively formed on said pawl and said lever and arranged to abut one another as said lever approaches its operated position so as to hold said pawl in 'engagement with said ratchet until said lever has been moved toward its initial position.

RALPH V. STREETER.

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