US3260240A

US3260240A - Copyholder and paper support

Info

Publication number: US3260240A
Application number: US431253A
Authority: US
Inventors: August A Holfelder; Frederick E List
Original assignee: G AND H MECHANICAL LAB Inc
Current assignee: G AND H MECHANICAL LABS Inc; G AND H MECHANICAL LAB Inc
Priority date: 1965-02-09
Filing date: 1965-02-09
Publication date: 1966-07-12
Anticipated expiration: 1983-07-12

Description

7 y 1 1966 A. HOLE-ELDER ETAL 3,260,240

COPYHOLDER AND PAPER SUPPORT led Fvb. 9,1965

5 Sheets-Sheet l AUGUSTA. HOLFELDER FREDERICK E. LIST INVENTORS AGENT y 12, 9 A. A. HOLFELDER ETAL 3,260,240

COPYHOLDER AND PAPER SUPPORT Filed Feb. 9, 1965 5 Sheets-Sheet 2 AUGUST A. HOLFELDE R FREDERICK E. L l ST INVENTORS A GEN T July 12, 1966 A. A. HOLFELDER ETAL 3,260,240

COPYHOLDER AND PAPER SUPPORT "llOd Feb. 9, 1965 5 Sheets-Sheet 5 EigL AUGUST A. HOLFELDER FREDERICK E. LIST INVENTOR-S iii DA 7672M AGENT y 1966 A. A. HOLFELDER ETAL 3,

COPYHOLDER AND PAPER SUPPORT Filed Feb. 9, 1965 5 Sheets-Sheet 4 AUGUSTAHOLFELDER FREDERICK E. LIST INVENTORS 47 Fi g Pm/PL [at AGENT y 1966 A. A. HOLFELDER ETAL 3,250,240

COPYHOLDER AND PAPER SUPPORT 5 Sheets-Sheet 5 Vi 10d Feb.

AUGUST A. HOLFELDER FREDERICK E. LIST IT\'\ 'ENTORS United States Patent Office 3,260,240 Patented July 12, 19,66

3,260,240 COPYHOLDER AND PAPER SUPPQRT August A. Holfelder, North Caldwell, and Frederick E.

List, Upper Montclair, N.J., assignors to G & H Mechanical Laboratory, Inc., a corporation of New Jersey Filed Feb. 9, 1965, Ser. No. 431,253 13 Claims. (Cl. 12032) This invention pertains to copyholders having a paper support. More particularly this invention pertains to copyholders of the portable type having selectable advancing mechanism.

Even more particularly this invention pertains to portable copyholders having a scroll-type paper retainer, a one-way clutch mechanism driving a paper advancing means in response to a lever actuation and an adjustable sight guide and paper support.

Even more particularly this invention relates to a portable copyholder having easy settable means for varying the length of incremental movement of a paper advancing mechanism and means for jogging the advance mechanism to advance the same paper copy a relatively small proportion of the incremental movement of the copy.

Copyholders of conventional construction have provided mechanism that has been subject to the slightest variation in the manufacture of feeding wheels and other commercial tolerances required in the manufacture of the machine. These copyholders have been satisfactory in that line adjustments of some difliculty have often been experienced, this annoyance and loss of time by the copyist has resulted in the reduction ofuse of the copyholders.

It is an object of this invention to provide a copyholder of a light, portable type, the copyholder providing a scroll-type paper retainer, a one-way clutch mechanism driving a pair of rollers in response to a lever actuation, the lever actuation having an easy settable means of producing incremental movement in equal multiples, as for example thirds, which movement may correspond to the single, double and triple spacing provided by a typewriter, the one-way clutch mechanism also providing a means for jogging the advance mechanism to advance the paper copy a fraction of a standard incremental movement and by this means to bring the line of copy into a desired relationship to a sight guide.

It is a further object of this invention to provide a copyholder of high reliability and economical of manufacture, said copyholder having an adjustable paper support, an adjustable sight guide and means for easy mounting and retaining of an enlarging unit.

In the attainment of these and other objects that will become apparent in the following detailed description, We provide a copyholder having a housing providing a support for a hinged base and lever carrying a pivotmounted scroll-type paper holder, the paper holder being spring-biased to urge the paper being dispensed from the holder against a pair of spaced rollers. The lever providing means to move the holder away from the rollers andthe pivot mount providing a simple and effective means for self-alignment of the scroll-type paper holder against the rollers. These rollers are carried by a shaft rotatably driven by a one-way clutch mechanism moved by a lever and link to produce an incremental movement which may be predetermined by an easily seltable lever and stop mechanism. A paper support comprising a pair of adjustable arms is pivotally attached to the paper holder. A sight guide having guide continuation bars is provided to define a line-of-sight or reference. guide and to support a removable magnification memLer.

The most important features of the present invention have been outlined rather broadly in order that the detailed description thereof which follows may be appreciated. There are, of course, additional features of the invention which will be described hereafter and which will also form the subject of claims appended hereto. Those persons skilled in the art will appreciate that the conception on which the present disclosure is based may readily be utilized as the basis for designing other structures for carrying out the several purposes of this invention. It is important, therefore, that the claims be regarded as including such equivalent constructions as do not depart from the concept and scope of this invention.

A preferred embodiment and modification thereof has been chosen for purposes of illustration and description and is shown in the accompanying drawings forming a part of the specification wherein:

FIG. 1 represents an isometric front view of the copyholder of this invention;

FIG. 2 represents a sectional view taken on the line 2-2 of FIG. 1;

FIG. 3 represents a sectional view taken on the line 3-3 of FIG. 1;

FIG. 4 represents a somewhat diagrammatic plan view of the spring release lever;

FIG. 5 represents a somewhat diagrammatic of the advance lever assembly;

FIG. 6 represents a somewhat diagrammatic plan view of the advance control lever;

FIG. 7 represents a somewhat diagrammatic bottom view of the copyholder of FIG. 1;

FIG. 8 represents a somewhat exploded isometric View of the clutch, drive rollers and drive link assembly;

FIG. 9 represents a sectional view of the clutch mechanism with the shaft shown in phantom outline;

FIG. 9A represents a fragmentary sectional view of an alternate clutch body mechanism similar to the clutch body of FIG. 9;

FIG. 10 represents an exploded isometric view of the components of the clutch assembly;

FIG. 11 represents a fragmentary front view showing the advance control lever and its preferred means of releasable engagement with the housing;

FIG. 12 represents a fragmentary front view showing a portion of the paper scroll and the mounting thereon of the movable support arm;

FIG. 13 represents a fragmentary sectional view of the paper scroll and the attached movable paper support arm taken on the line 13-13 of FIG. 12;

FIG. 14 represents a fragmentary side view of the eye guide assembly;

FIG. 15 represents a fragmentary top sectional view of the eye guide assembly taken on the line 1515 of FIG. 14;

FIG. 16 represents a fragmentary and somewhat diagrammatic view of the method of assembly of the eye guide; I

FIG. 17 represents a plan view of an alternate embodiment of eye guide channel member;

plan view FIG. 18 represents a front view of the eye guide channel member of FIG. 17;

FIG. 19 represents an enlarged sectional view of the alternate channel member taken on the line 19-19 of FIG. 17;

FIG. 20 represents an enlarged fragmentary view showing a portion of the side wall of the main housing and the eye guide channel member receiving notch formed in said housing side wall;

FIG. 21 represents a side view of an alternate form of the eye guide extension bars;

FIG. 22 represents an enlarged sectional view of the extension bar as taken on the line 22-22 of FIG. 21;

FIG. 23 represents a somewhat diagrammatical and fragmentary sectional view showing the assembly of extension bars in the channel member, the view being taken on the line 23-23 of FIG. 24; and

FIG. 24 represents a sectional view taken on the line 2424 of the fragmentary view of FIG. 23. 7 Referring now particularly to the drawings wherein similar characters designate corresponding parts throughout, the general arrangement of the components forming the preferred embodiment of the copyholder includes a housing 20 which as seen in FIGS. 1, 2, 3 and- 7 is preferably made of a die cut and shaped piece of sheet steeL In the preferred embodiment shown, the housing 20 is formed with a sloped front face 22 and right and

left sides

23 and 24. Extending outwardly from the front face and through appropriately cut openings in this face is in advance control or limiting lever 26, an advance lever 28 and a spring release lever 30.

Carried by release lever 30 is paper scroll 32 which, as best shown in FIGS. 1-4, is generally a steel tube with both ends open. This tube as reduced to practice is about three and one-half inches in diameter and is about four and one-eighth inches long. This tube is further longitudinally split with a lip portion 34 being of a straight extent and on a tangent with the tube portion and extending at generally right angles to a radius line from the theoretical center of the tube. As seen in FIG. 2 and at about seventy or eighty degress clockwise from the end of lip 34 there is a stud 36 fixedly attached to the scroll 32. Lever 30 as reduced to practice and seen in FIGS. 2 and 4 is formed with a longer finger grasping leg 37, and oppositely disposed and parallel short supporting leg 38 and a transverse beam 39 connecting the legs 37 and 38. Intermediate the legs and extending forwardly as a part of the beam are

brackets

40a and 40b with .aligned hole 41 through both brackets. Stud 36 is inserted in hole 41 and is then riveted in place so that scroll 32 is pivotally carried by the lever 30. By precisely spacing

brackets

40a and 40b and controlling the planing of the stud end of stud 36, the brackets can be caused to act as biased beams so that scroll 32 can be turned around the axis of the stud but will be frictionally retained from freely swinging around the stud axis. The lever 30 is pivotally attached to

sides

23 and 24 by means of rivets 42.

As seen in FIGS. 2, 3 and 8 there is mounted a short distance below the upper edge of housing 20 a roller shaft assembly 44. This assembly 44 is rotatably mounted in bearings 45 in the

sides

23 and 24. A shaft 46 which may have reduced end portions 47 for mounting in the bearings 45 also has fixedly attached and adjacent each end portion 47 a roller 49 which preferably has a round rubber tire 50 mounted thereon. Intermediate the rollers 49 is a clutch 52 which is a one-way clutch to be more fully described below. As seen in FIG. 2 a spring 54 extends from finger leg 37 to a spring tab 55 attached to or otherwise made a part of right side 24. This spring 54 urges lever 30 to move clockwise around rivets 42 and to move scroll 32 into contact with rubber tires 50 of rollers 49. As scroll 32. is pivotally mounted, as described above, the scroll 32 will align itself to contact the tires 50 on both rollers 49.

clockwise rotate without similarly rotating the shaft.

The clutch 52 mounted on shaft 46 is a spring type torsion clutch which as installed and used is adapted to operate the shaft in only one direction. As reduced to practice, the clutch includes a housing 58 which is rotatably mounted on shaft 46. A shouldered bore 59 is adapted to slidably and to snugly retain a closely wound spring 60 which, as shown and reduced to practice, is wound left-handed. The spring 60 shown is tightly wound and is intended to lightly grip the shaft 46 with the spring wound about a one to three thousandths of an inch lesser inside diameter than the diameter of the shaft 46. The bore 59 in the housing 58 and as reduced to practice is approximately five thousandths of an inch larger than the outside diameter of the mounted spring and the length of bore 59 is such that when mounted, spring 60 is retained with each coil contacting each adjacent coil.

It is to be noted that spring 69 is formed with an outwardly directed tab end 62 which engages and is rotationally retained by a groove 64 formed in housing 58. To retain the spring 60 in the bore 59, there is provided a spacer washer 66 retained in the housing by a snap-ring 68 mounted in a snap-ring groove 69 formed in the enlarged end of the housing. The housing 58 is preferably made with two flanged ends which provide a recess for the end of a drive link 70. Aligned pin holes 72 are drilled in the flanges, and a connecting pin '73 is inserted in each of the holes 72 while at the same time passing pivotally through the end of link 70.

In use, as to be more fully described hereafter, the drive link 70 is caused by other mechanism to move downwardly. This downward movement of link 70 in turn causes the housing 58 to move clockwise as shown by the arrows, the tab 62 of the spring 60.is also moved clockwise, and the spring 60 already snugly around shaft 46 is caused to be more tightly wound around the shaft. This additional tightening of the spring is sufficient for it to grip the shaft 46 and to clockwise rotate this shaft an amount substantially equal to the rotational movement of the housing 58. After the clockwise rotation has been completed, the housing 58 is moved back to its original position by an upward movement of drive link 70 to its normal up position. This movement of link 70 is by means to be described below. As the housing is moved counterclockwise, the tab 72 of the spring is also moved therewith causing the spring to move and slightly unwind. This slight unwinding of the spring as the housing is moved in the counter-clockwise direction releases the grip of the spring on the shaft 46 and allows the housing to counter- It is to be noted that the shaft is maintained under a slight frictional load so as to prevent any unwanted shaft rotation. In the present instance it is preferred to provide this low friction by applying a light load against the shoulders of the reduced end portions 47 of the shaft 46.

In FIG. 9A is shown an alternate clutch body mechanism which in many respects is the same as the clutch 52 of FIGS. 9 and 10. This alternate clutch is a modification of the above described clutch and is simplified in construction to provide certain manufacturing economies. This modification renders this clutch less foolproof than the clutch of FIGS. 9 and 10, however the backlash that may sometimes occur is of such a small percentage that in most applications of this copyholder the amount of developed backlash can be ignored. This alternate clutch designated 152 includes a housing 158 which may be identical to housing 58 except that a less expensive bore is provided, this bore having no undercuts may be molded in a housing of plastic or a metal die casting. Bore 159 may have a chamfered inlet and then a constant diameter portion of less extent than bore 59. This bore 159 snugly retains a closely wound spring 160 which as shown is wound lefthanded and has about half as many turns as spring 60. 7 Spring 160 is of a lesser length than bore 159. A short transition may be formed from bore 159 to a reduced rear bore 161 which is a rotating fit upon shaft 46. This bore 161 is of sufficient length to provide a bearing surface which will reduce wobble of the housing on the rotating shaft. A tab 162 on spring 160 is engagable in a groove 164 formed in the flange of housing 158. This tab 162 is attached or retained in groove 164 by glue, solder, or by closing the groove 164 by deformation of the flange. By one of these means, the spring 160 is maintained within bore 159. As spring 160 is not longitudinally retained within the bore 159, the spring may flex a slight amount before gripping the shaft, thus creating a small amount of backlash. The maintenance of a spring and bore relationship in clutch 152 which is about the same as in cluch 52 provides for a backlash which is usually less than one or two degrees of rotation.

Referring now to FIGS. 3, 5 and 7, there is provided an advance lever assembly 28 which includes a right and left pivot arm 74 and 75, pivot pins 76 and 77 each extending from the end portions of an arm 74 or 75. Intermediate the arms and as formed from the same sheet of metal is the finger plate 78. A portion of this plate 78 extends through an opening in the front 22 of the housing 20. Extending upwardly from a portion of this plate is a pair of link brackets 80 and 81 having holes therein to carry a lower connecting link pin 82. As shown in FIG. 3 the lower end of link 70 is disposed between brackets 80 and 81 and by means of pin 82 is pivotally attached to this advance lever assembly 28. A tension spring 84 extending from the inner edge of finger plate 78 to the shaft 46 provides a bias to move and maintain the lever assembly 28 in an upward position. It is to be noted that the pivot pins 76 and 77 are carried by brackets 85 formed from the sides of the housing.

Upward movement of the advance lever assembly is regulated by the advance control lever 26 which as seen in FIGS. -3, 6 and 7 is preferably a single sheet metal stamping having a :beam portion '88 with a pivot hole 89 formed on the inner end thereof. Adjacent this pivot hole there is in the preferred instance an embossed dimple portion 90 for a purpose to be described below. Approximately one third of the way from the outer end of beam portion 88 there is provided a stop arm 92 having its outer end bent so as to provide a stop surface for engaging the finger plate 78 of the advance lever 28. Out wardly from arm 92 and adapted to lie in the plane of front plate 22 there is embossed in the beam 88 a longitudinal protrusion 94. As assembled for use the control lever 26 is mounted on pivot pin 77 of advance lever 28. The inner surface of the beam end is slidably engaged and retained by bracket 85, and the dimple 90 engages the inner surface of the housing side 23. The beam 88 then extends upwardly and outwardly to and through an appropriate cutout 96 formed in cover 22. The beam 88 is bowed or bent so that when mounted on pin 77 as shown in FIG. 7 the dimple 90 will engage the inner surface of the housing side 23 and the outer portion of the beam carrying protrusion 94 will engage the inner longitudinal surface of the cutout 96, FIG. 11. It is to be further noted that the inner longitudinal surface of cutout 96 has a series of semicircular serrations 97 formed therein. In the present instance these serrations total three and are indicated by numerical indici-a applied to the surface of the front face 22. In use the serrations 97 are so spaced and numbered that when the lever 26 is placed with protrusion 94 at serration 1 as seen in FIG. 11, the stop arm 92 will engage plate 78 so as to limit the up-and-down travel of advance lever 28. This limit of travel is translated into rotational movement of shaft 46 so as to correspond with a total circumferential equivalent linear movement of tire 50 equal to the space of one line of typewritten copy. Accordingly, when the lever 26 is placed with protrusion 94 at serration 2 the stop arm 92 will move upwardly increasing the upper limit of travel of advance lever 28.

The up-and-down movement of lever 28 is now intended to be translated into a circumferential linear movement of tire 50 equal to two lines of typewritten copy. Further, when the lever 26 is moved to place protrusion 94 at serration 3, the stop arm 92 will have been moved additional-1y upward to permit the movement of advance lever 28 to translate the circumferential linear movement of tire 50 into a movement equal to three lines of typewritten copy.

Attention'is now directed to the preferred sight guide apparatus and particularly to the apparatus as shown in FIGS. 1-3 and 12-16. It is to be noted that there is no top for the housing 20 as formed in the "blanking and bending of the front face 22 and

sides

23 and 24, hence to furnish a top or cover for the housing there is provided a channel guide 98. This channel guide serves not only as a cover for the open top of the housing but also provides an alignment or sight guide for the convenience of the operator of the apparatus. As illustrated, this channel giude is intended to be snapped in place on the top of the housing 20. A preferred arrangement utilizes a plurality of holes 100 which are drilled or punched in the front face and which are located near the upper edge of the face 22. In the front leg 102 of guide 98 there are formed dimpled portions 103 which are of such a size and spacing as to mate and seat in the holes 100 in the front face 22 while the front leg 102 lies thereon.

An intermediate portion 104 of guide 98 is formed so.

as to be substantially at right angles to leg 102. This portion 104 is adapted to lie on the upper ends of

sides

23 and 24. Portion 104 terminates in a channel 106 which in the present instance is a three-sided bent continuation of the sheet metal forming the guide 98. Engaging tabs 108 (FIGS. 2 and. 14) are also formed from this sheet metal. These ta'bs are of short extent and are in the plane of the lower wall of the channel 106. As reduced to practice, there are two tabs 108 which are spaced so as to engage the

sides

23 and 24. As seen in FIGS. 2 and 3, the upper inner corner of the side 24 is cut to receive this channel 106 and a notch 109 is also formed to accept and retain tab 108. Side 23 is cut in a manner similar to side 24 so as to receive the portion of channel 106 and the tab 108 corresponding to that side. To mount guide 98 to the housing 20, the tabs 108 are slid into the appropriately formed notches 109 in

sides

23 and 24, the forward wall of the channel 106 is brought into engagement with the

sides

23 and 24, and front leg 102 is brought over and lightly sprung outwardly while being pushed down the outer surface of front face 22 until dimpled portions 103 engage and are seated in holes 100, by which means the guide 98 is brought downwardly into snug engagement with the housing 20. In this manner there is provided a biased retention of the removably mounted guide 98 to the housing 20.

The channel guide 98 provides with its portion 104 a straight surfaced edge which provides a line-of-sight or a reference guide or point. The extended. channel 106 which is a continuation of portion 104 is also a retaining guide for the retention of guide continuation bars 110 which are particularly seen in FIGS. 1, 14, 15 and 16.

' In the present instance rectangular aluminum bar stock is cut to a predetermined length. An end portion 112 is bent with a ninety degree twist and a ninety degree bend to a main beam portion 114 comprising the remainder of the bar 110. Disposed adjacent the unbent end of beam portion 114 there is formed an engaging means. In the preferred embodiment as seen in FIGS. 14-16, this engaging means is provided in the form of a tongue 116 which is lanced or pushed out from the main beam 114. This tongue 116 has the spring bias and deforming characteristics of the metal of the beam, and in the forming of the tongue it is bent so that the unattached or free end is caused to project beyond the face of the beam portion 114. The tongue is formed with its attached end dis posed adjacent to the unbent end of the main beam 114.

The channel 106 (FIGS. 14-16) is formed with end guides 118 which provide an opening of such size as to slidably retain the rectangular cross-sectional construction of the beam 114. It is to be noted in FIG. 16 that, as illustrated, the left end guide 118 is formed so that the opening for the left beam 114 is adjacent the rear wall of channel 106. The right end guide 118 is formed so that the opening for the right beam 114 is adjacent the forward wall of the channel 106. As seen in FIG. 15, the guide bar 110 is easily mounted in the channel 106; the end of the main beam 114 is inserted in the end opening in the channel 106, and the :beam is pushed into the channel. As tongue 116 approaches the end guide 118, it is deflected by the guide into the plane of the beam. After passing the guide and moving into the channel, the bias of the tongue causes it to once again spring into the bent position shown in FIG. 15.

The right guide bar 110 is similarly mounted in the channel 106. After both right and left guide bars 110 are mounted in the channel, they are pushed further inwardly until they meet, and then in the manner shown in FIG. 16 they are manipulated so that the inner ends pass each other, the tongues 116 of each bar deflecting to allow the other to pass. When the tongues have passed each other in the manner shown in FIG. "16, the tongues provide limiting means for the outward movement of or Withdrawal of the guide bars 110. As reduced to practice the approximate length of the channel is twelve and three-quarters inches, while the main beam 114 of each guide continuation bar 110 is about twelve and one-half inches. The free end of the tongue 116 is twelve inches from the bent end portion 112, which arrangement permits the bars 110 to be pushed into the channel 106 until the bent end portions 112 engage the end guides 118. When fully inserted or in the closed. position the end portions 112 will then be about twelve and one-half inches apart. When fully extended and with the ends of the tongues 116 engaging each other, the end portions 112 of the guide :bars 110 will be twenty-four inches apart. By making the internal width of the channel 106 of limited extent so as to accommodate the two thicknesses of beams 114 and to further accommodate less than the free projection of the combined tongues 116, the positive engagement of the tongues 116 to each other is assured. In the embodiment shown and reduced to practice, the internal width of the channel is one hundred sixty thousandths of an inch; the thickness of the beam 114 is seventy thousandths of an inch, while the projection of each tongue is fifteen thousandths of an inch. As thus proportioned the bars 110 can be freely moved longitudinally in the channel 106 without undue engagement of a tongue 116 with an oppositely disposed main beam 114. A desirable light frictional engagement of the bars 110 to each other and to the walls of the channel 106 is provided by the lack of accurate straightness in the main beam 114 which is achieved by utilizing only commercial- 1y straight extended bars and the inadvertent bending of the beam 114 while the beam is grasped in dies as tongue 116 is being formed. The resulting beam 114 has a slight how or deviation from a true plane, said deviation providing all the light friction necessary to maintain the guide bars 110 in the adjusted position.

In FIGS. 1-3, 12 and 13 is shown a preferred paper support means. Said paper support means include a plurality of movable arms which in the present instance are ,two and which may be moved from a generally horizontal storage or repose position to a generally vertical operating or paper-supporting position. there are cut and bent two lug supports 120, each having therein a. hole for the insertion and retention of a rivet 122. An arm 124 is, in the present embodiment, formed with a hole in one end thereof. This hole is additionally formed at the apex of a conically formed portion 125 which is further distinguished by having this conical por- -tion radially cut at a plurality of points 126. This result- For paper scroll 32 ing resilient washer construction,-similar to a Belleville type washer, provides a shake-free, resilient, rotatable mounting of the arm 124 to the lug support when the rivet 122 is mounted in the respective holes and the small end of the rivet is precisely headed or turned over.

It is to be noted in FIGS. 1, 2 and 3 that th rear edge of

sides

23 and 24 are formed with an arcuate shape 128 which is so disposed that when tire 50 of the roller 49 engages the paper scroll 32 the arcuate shape 128 lies forwardly of the exterior of the paper scroll and by an amount greater than the thickness of heavy paper.

It is to be further noted in FIGS. 1, 2 and 3 that an accessory enlarging or magnifying unit 130 is readily mountable on th channel guide assembly 98. As shown, the magnifying unit 130 has a plano-convex cross section and is preferably made of acrylic plastic. This unit 130 is cut or formed of a selected length, and in each of the ends there are formed grooves parallel to the plano surface, the grooves being of a depth and width to accept and retain the end portions 112 of guide bars 110.

An alternate embodiment of sight guide apparatus is shown in FIGS. 1724 in which a channel guid is similar in form and use to the guide 98 and provides a cover for a slightly modified housing designated 20a. This guide 150 similarly snaps in place on a housing 20a which is the same as housing 20, but instead of having the notches 109 shaped as seen in FIGS. 2 and 3, has notches 152 which have sloped sides and a hook portion 153 adapted to engage the underside 154 of tab 155 formed in guide 150. In the front leg 156 of guid 150 there are formed dimpled portions 158 which are of such a size and spacing as to mate in holes 100 in the front face 22 of housing 20a while the front leg 156 lies thereon.

An intermediate portion 160 of guide 150 is formed so as to be substantially at right angles to leg 156. This portion is adapted to lie on the upper ends of

sides

23 and 24. Portion 160 terminates in a channel 162 which, as shown, is a four-sided bent continuation of the sheet metal forming the guide 150. Engaging tabs 155 (FIG. 19) are also formed from the sheet metal. These tabs are of short extent and are pushed downwardly from the plane of the lower wall of the channel 162 and intermediate portion 160. As reduced to practice, there are two tabs 155 which are spaced so as to engage the hook portions 153 of

sides

23 and 24. To mount guide 150 on the housing 20a, the tabs 155 are slid into the notch 152, the underside 154 of tab 155 engaging the hook 1 portion 153 of the sides. The front leg 156 is brought over and lightly sprung outwardly while being pushed down the outer surface of front face 22 until dimpled portions 158 engage and are seated in holes 100, as described in conjunction with guide 98 above.

In channel 162 there are disposed two guide continuation bars as particularly seen in FIGS. 21-24. In this embodiment a rectangular steel bar is cut and bent as in the manner of bar 110, however the tongue 116 of bar 110 is replaced with a dimple 172 disposed in th flat portion 174 and formed by embossing dies. As particularly seen in the sectional view FIG. 22, the dimple 172 is essentially extruded or displaced from the plane of the flat portion 174 and forms a smooth rounded protuberance extending therefrom. Extending at right angles to portion 174 is end portion 112a which is identical to end portion 112.

In opposite walls of channel 162 there are formed outwardly extending

groove portions

176a and 176b, each groove of a determined length and terminating substantially before the end of the channel 162.

The channel 162 is formed with appropriate end openings to slidably retain the rectangular cross-sectional construction of the beam portion 174. To assemble th two bars 170 within the channel 162, the bars 170 are arranged with the dimpled portions 172 dispose-d outwardly in the manner as seen in FIGS. 23 and 24. The channel 162 may be sprung open an amount sufiicient to accept these bars, or the bars may be placed in the channel immediately prior to the forming of the last closing bend and the channel then bent to final form. The bars 170 when thus assembled are restrained in longitudinal movement by the extent of the groove portions 176a or 1761;, the length of flat portion 174, the location of dimple 172 therein, and the extent of groove 176 being arranged by construction to provide th amount of longitudinal travel desired. Other details of this sight guide assembly are similar to the sight guide apparatus of FIGS. 1-3 and 12-16 described above. The use and operation of this assembly will be described below.

Use and operation To use the copholder shown and described above requires three very simple manipulations. The operator grasps in on hand the piece of paper or similar material which is to be copied; meanwhile with the other hand the operator grasps spring release lever 36 and moves the lever upwardly to the position shown in the phantom outline in FIG. 2. As lever 30 is moved, so also is paper scroll 32 moved to the position indicated by the phanton outline. Placing the paper forwardly of arms 124 and behind guide bars 118 or 170 (with or without magnifying unit 130 therein) the paper is slid downwardly between scroll 32 and rollers 4-2. As the paper is continued to be fed downwardly the forward edge of the paper will engage lip portion 34 and will be guided into the inner portion of the scroll 32, and following the direction of the arrows of FIG. 2 the paper will be rolled upon itself into a scroll.

After the paper has been advanced into the scroll 32 an amount sufficient for the top line of copy to just be visible above the intermediate portion 104, the lever 30 is released so that spring 54 will bring the lever 30 and scroll 32 to the position shown in solid lines in FIG. 2. The paper carrying the copy has one side thereof retained in sliding relationship with the smooth outer surface of scroll 32 and with the other side of the paper engaging the rubber tires 50 of rollers 49.

Referring now to FIGS. 3 and 5, the lever 26 is placed so that protrusion 94 is engaged in that serration 97 which is numbered to correspond with the spacing of the copy. As for example, if the copy is doubled spaced, the protrusion 94 is adjusted to seat in the middle serration which is numbered two. To advance the paper being copied, the advance lever 28 is moved downwardly until stopped by the inward turned lower lip 131 of front face 22. This lower lip may have a rubber bumper 132 mounted thereon so as to reduce the noise of contact of lever 28 against lip 131. As described above, drive link 70 is moved downwardly an amount as controlled in the upper extent by the stop arm 92 and in the lower extent by lower lip 131 or bumper 132. This downward movement causes clutch 52 to engage and rotate shaft 46 in a clockwise direction and in an amount as controlled by the upper and lower limited movement of advance lever 28. As shaft 46 revolves, the rubber tire 50 'frictionally engages and drives the copy paper upwardly and draws said paper from the paper scroll 32 in the direction of the arrows as seen in FIG. 3.

It is to be noted that a light tapping of the finger on the advance lever 28 will cause small downward movements of the drive link 70 resulting in short rotational movements of the shaft 46 and rubber tire 50. This permits the paper to be joggedupwardly when desired to correct for irregular spaced copy or to otherwise move the paper upwardly for irregular distances.

The convenience of the user is accommodated in the support of the expelled or exposed port-ion of paper copy. To suit the particular copy being'copied, the arms 124 are pivotally swung to any desired position extending from horizontal to the vertical position shown in FIG. 1.

The sight guide formed from channel 106 and'the guide continuation bars 110 are adjustable by the user from an inner limit as controlled by the length of channel 106 and to an outer limit as controlled by the engagement of each tongue 116 with each other. The alternate embodiment in which is used the channel 162 and bars 170 is adjustable within the limits imposed by dimples 172 residing and moving in enclosed groove portion 176, or may be limited in its inward movement by the engagement of the twist in the bar 170 with the outer end of the channel 162.

The magnifying unit is mounted for use by adjusting guide bars 110 or so that end portions 112 engage each end and longitudinally retain unit 130. End slots in unit 130 engage end portions 112 or 112a which are seated therein to provide alignment and vertical support While

channel

106 or 162 provides the bottom support for the removable magnifying unit.

The copyholder shown and described above is of light weight and is readily portable for movement to any desired location, hence in the foregoing description the terms right, left, up, down, front, rear and similar terms are applicable to the apparatus as described in conjunction with the accompanying drawing, and it is to be noted that such terms are merely for the purpose of description and do not necessarily apply to a position in which the apparatus may be constructed or used.

While we have herein shown and described our invention in what we have conceived to be the most practical and preferred embodiment, it is recognized that departures may be made therefrom within the scope of our invention, which is not to be limited to the details disclosed herein but is to be accorded the full scope of the claims so as to embrace any and all equivalent devices.

Having described our invention herein, what we claim as new and desire to secure by Letters Patent is:

1. A copyholder and paper support in combination comprising: (1) a housing having spaced sides and a front face; (2) a paper drive mechanism having a .shaft rotatably carried by the housing, said drive including a pair of spaced rollers mounted on the shaft; (3) a oneway ratchetless clutch drive carried on the shaft; (4) a lever, link connected to the clutch providing means for activating the clutch by manipulation of the lever; (5) a paper holder adapted to hold a sheet of copy, the holder having a paper slide surface disposed in front of the spaced rollers of the paper drive mechanism; (6) a support beam rotatably mounted in and carried by the sides of the housing, the beam arranged to carry the paper holder and as the beam is rotated in the housing, the paper holder is caused to be carried toward and away from the rollers; (7) a spring adapted to urge the paper holder toward the rollers and provide a bias whereby the paper holder is normally retained against the rollers and when the paper holder is moved away from the rollers the bias of the spring is overcome; (8) a pivot connection of the paper holder to the support beam to provide self-aligning means for the rollers and slide surface to accommodate any uneven thickness of paper and to enable the spring pressure on the paper holder to be applied equally to each of the rollers; (9) means for moving the paper holder away from the rollers to provide a path for inserting the paper into the holder; (10) a sight guide mounted on and extending from the top of the housing; and 11) means for supporting the portion of the paper copy disposed above the sight guide to maintain this portion in viewing position.

2. A copyholder and paper support as in claim 1 in which there is a lever attached to the support beam, the free end of the lever disposed so as to be grasped and manipulated to move the support beam and paper holder to overcome the spring bias and .move the holder away from the rollers to permit insertion of the paper copy.

3. A copyholder and paper support as in claim 2 in which the one-way ratchetless clutch includes a housing body rotatably mounted on the shaft, a tight-wind spring carried in a bore in the body and disposed to lightly grip the shaft and to be slidably retained in the bore, the spring having a tab which is disposed to be engaged and rotationally retained by a groove in the body, so that as the body is moved in the direction of the wind of the spring, the spring coils are tightened on the shaft to rotate the shaft, and as the body is moved in a direction counter to the wind of the spring, the spring coils will loosen on the shaft to slip on the shaft without causing a rotation of the shaft.

4. A copyholder and paper support as in claim 3 in which the clutch housing body has a shouldered bore disposed to restrain the spring on one end, the body further having a recess adapted to accept a washer, means to maintain this washer in the recess, said washer when mounted in the body restraining the other end of the spring, so that as the body is rotated in a direction counter to the wind of the spring, the spring coils will be prevented from separating in a longitudinal manner.

5. A copyholder and paper support in combination comprising: (1) a housing having spaced sides and a front, the sides having contoured portions to permit a paper copy to be carried adjacent the housing and to extend beyond the sides thereof; (2) a paper drive mechanism having a shaft rotatably carried by the housing and having a plurality of spaced, friction-surfaced rollers mounted on the shaft; (3) a one-way springwound clutch disposed on the shaft to rotate the shaft and rollers in only one direction, the clutch having a housing body rotatably mounted on the shaft, a tightwound spring carried in a bore in the body and disposed to lightly grip the shaft and to be slidably retained in the bore, the spring having an extended tab engaging and being rotationally retained by a groove in the body, so that as the body is moved in the direction of the wind of the spring, the spring coils will tighten on the shaft to grip the shaft and cause the shaft and rollers to rotate, and as the body is moved in the other direction counter to the wind of the spring, the spring coils wiil loosen on the shaft so as to slip on the shaft without rotating the shaft; (4) an advance lever pivotally attached to the housing and biased by a spring so that the free end of the lever is normally at the upper limit of a controlled movement path; (5) a link connecting the housing body of the clutch and the advance lever so as to rotate said housing body of the clutch as the free end of this lever is urged downwardly to cause the clutch to rotate in shaft-engaging movement, and as the lever end is released, the spring will return the lever end to the upper limit and the clutch will be rotated in shaft-nonengaging movement; (6) a scroll-type paper holder adapted to hold a substantial portion of paper copy, the scroll adapted to present a paper slide surface to the friction-surfaced rollers to permit paper to be mover over said slide surface by the rotation of the rollers; (7) a support bar hingedly attached to the sides of the housing, the bar arranged to carry the paper holder toward and away from the rollers; (8) a spring means adapted to engage the support bar and to urge the support bar to rotate to move the paper holder toward the rollers; -(9) a pivot connection of the paper holder to the support bar to provide self-aligning means of the paper slide surface to the rollers so as to accommodate uneven thicknesses of paper and to enable the pressure of the spring means urging the paper holder toward the rollers to be applied equally to each of the rollers; (10) a release lever having one end attached to the support bar and having the free end disposed so as to be grasped and manipulated to move the support bar and paper holder to overcome the spring bias and move the holder away from the rollers to permit insertion of paper copy into the scroll of the holder; (11) a sight guide removably attached to the ends of the sides and front face of the housing, the upper edge of the guide in alignment with the shaft of the rollers; and (12) a paper support including a plurality of rotatably mounted arms attached to and extending from the paper holder, the arms disposed to be movable from a first position adjacent the paper holder to a normal use position at about a right angle to the first position.

6. A copyholder and paper support as in claim 5 in which there is provided a setting lever pivotally attached to the housing and having its free end extending through an opening in the front face of the housing, the opening having a plurality of spaced notches formed therein and the setting lever having a notch-engaging protuberance formed thereon, the protuberance adapted to selectively engage one of each of the notches when the setting lever is moved in the opening, the lever being bowed to pro- Vide a bias urging the protuberance into the selected notch, the lever further having a stop portion adapted to engage the advance lever activating the clutch to limit the upward movement of the clutch-controlling advance lever, the notches providing a settable stop to precisely limit the clutch rotation to cause the paper-engaging rollers to advance the copy paper a selected amount.

7. A copyholder and paper support as in claim 6 in which the clutch shaft is retained in the housing so as to apply a light frictional drag to the shaft rotation so that the shaft will rotate in response to the clutch forward rotation and will be restrained by the frictional drag from moving in the reverse direction as the clutch is released and moved back to the starting position.

8. A copyholder and paper support as in claim 7 in which the sight guide includes a channel adapted to retain a pair of continuation bars.

9. A copyholder and paper support as in claim 8 in which the channel portion of the sight guide is formed to retain the pair of continuation bars in parallel side-by side sliding relationship, the channel having each end partially closed to slidably retain a continuation bar, each bar having an end portion disposed at right angles to a main beam portion, each beam portion having a defiectable tongue formed therein, the tongue being formed so that the free end of the tongue projects from the plane of one side of the beam, the attached end of the tongue being disposed adajcent the end of the unbent end of the beam, the bars when assembled in the channel being confined therein, so that when the tongue portions are disposed face-to-face and are pushed past each other, the ends of the tongues will deflect to permit passing and after passing will return to their formed position and will project each into the path of the other, so that when the bars are moved outwardly in the channel, the tongue ends will abut each other to prevent unwanted or accidental withdrawal of the bars from the channel.

10. A copyholder and paper support as in claim 8 in which the channel portion of the sight guide is formed so as to retain the pair of continuation bars in parallel sideby-side sliding relationship, the channel having each end partially reduced so as to retain a single continuation bar, each bar having an end portion disposed at right angles to a main beam portion, each beam portion having a dimpled protuberance formed therein, the protuberance adapted to slide in and be contained in a guide means formed in each side wall of the channel, each guide means of a determinate length and defining the selected outward movement limit of the continuation bar Whose protuberance is confined in the guide means.

11. A copyholder and paper support as in claim 10 in which the guide means in each channel wall of the sight guide is an outwardly extending groove of determinate length.

12. A copyholder and paper support as in claim 9 in which the sight guide has a front leg having a plurality 13 of dimpled portions adapted to mate and seat in holes formed in the front face, an intermediate portion substantially at right angles to the front leg and adapted to lie on the top of the sides of the housing and a pair of engaging tabs formed from the channel and adapted to engage notches formed in the sides of the housing.

13. A copyholder and paper support as in claim 12 in which an enlarging unit is mountable in the sight guide, the enlarging unit having a lano-convex cross section and having a groove formed in each end, each groove having a depth and width adapted to retain the end portion of a continuation bar.

References Cited by the Examiner UNITED STATES PATENTS 2,273,841 2/1942 Dodds 120-32 2,596,239 5/1952 Halstead 12032 2,620,771 12/1952 Lewis 120-32 2,647,491 8/ 1953 Toggenburger 12032 FOREIGN PATENTS 520,402 1/ 1956 Canada. 487,336 12/ 1929 Germany.

LAWRENCE CHARLES, Primary Examiner.

Claims

1. A COPYHOLDER AND PAPER SUPPORT IN COMBINATION COMPRISING: (1) A HOUSING HAVING SPACED SIDES AND A FRONT FACE; (2) A PAPER DRIVE MECHANISM HAVING A SHAFT ROTATABLY CARRIED BY THE HOUSING, SAID DRIVE INCLUDING A PAIR OF SPACED ROLLERS MOUNTED ON THE SHAFT; (3) A ONEWAY RATCHLESS CLUTCH DRIVE CARRIED ON THE SHAFT; (4) A LEVER, LINK CONNECTED TO THE CLUTCH PROVIDING MEANS FOR ACTIVATING THE CLUTCH BY MANIPULATION OF THE LEVER; (5) A PAPER HOLDER ADAPTED TO HOLD A SHEET OF COPY, THE HOLDER HAVING A PAPER SLIDE SURFACE DISPOSED IN FRONT OF THE SPACED ROLLERS OF THE PAPER DRIVE MECHANISM; (6) A SUPPORT BEAM ROTATABLY MOUNTED IN AND CARRIED BY THE SIDES OF THE HOUSING, THE BEAM ARRANGED TO CARRY THE PAPER HOLDER AND AS THE BEAM IS ROTATED IN THE HOUSING, THE PAPER HOLDER IS CAUSED TO BE CARRIED TOWARD AND AWAY FROM THE ROLLERS; (7) A SPRING ADAPTED TO URGE THE PAPER HOLDER TOWARD THE ROLLERS AND PROVIDE A BIAS WHEREBY THE PAPER HOLDER IS NORMALLY RETAINED AGAINST THE ROLLERS AND WHEN THE PAPER HOLDER IS MOVED AWAY FROM THE ROLLERS THE BIAS OF THE SPRING IS OVERCOME; (8) A PIVOT CONNECTION OF THE PAPER HOLDER TO THE SUPPORT BEAM TO PROVIDE SELF-ALIGNING MEANS FOR THE ROLLERS AND SLIDE SURFACE TO ACCOMMODATE ANY UNEVEN THICKNESS OF PAPER AND TO ENABLE THE SPRING PRESSURE ON THE PAPER HOLDER TO BE APPLIED EQUALLY TO EACH OF THE ROLLERS; (9) MEANS FOR MOVING THE PAPER HOLDER AWAY FROM THE ROLLERS TO PROVIDE A PATH FOR INSERTING THE PAPER INTO THE HOLDER; (10) A SIGHT GUIDE MOUNTED ON AND EXTENDING FROM THE TOP OF THE HOUSING; AND (11) MEANS FOR SUPPORTING THE PORTION OF THE PAPER COPY DISPOSED ABOVE THE SIGHT GUIDE TO MAINTAIN THIS PORTION IN VIEWING POSITION.