US2350365A

US2350365A - Copyholder

Info

Publication number: US2350365A
Application number: US406527A
Authority: US
Inventors: Raymond J Miller
Original assignee: AMERICAN PATTERN AND Manufacturing CO
Current assignee: AMERICAN PATTERN AND Manufacturing CO
Priority date: 1941-08-12
Filing date: 1941-08-12
Publication date: 1944-06-06
Anticipated expiration: 1961-06-06

Description

June 6, 1944.

(ENIMH!!!Hyggllllflglllll!! R. J. MILLER 2,350,365

COPYHOLDER 5 sheets-sheet 1 Filed Aug. l2., 1941 new l .mamans INVENTOR. Y En wvo/vo J /V/Lz. :e

Jurne 6, y1944. R. J. MILLER 21,350,365

' v coPYHoLDER I I Filed Aug. 12, 1941 5 Sheet's-Sheet 2 -HQ' 33a v I d 332 .7H--

1 NV ENTOR.

June s, 1944.. R MILLER 2,350,365

COPYHOLDER i Filed Aug. 12, 1941 5 Sheets-Sheet 3 1N VENTOR.

Y Bya'rMo/vo ZM/z. fe

June 6, 1944. R. L M|| ER 2,350,365

COPYHOLDER Filed Aug. l2, 1941V 5 Sheets-Sheet 4 2/2 32 2/6 /24I 68 250 /ze /fz U46 244 ,l /20 fl 2o 00]/ o I o l 202 58 /0 02| I .9a vos /5 IN VENTOR.

Patented June 6, 1944 t COPYHOLDER Raymond J. Miller, Detroit, Mich., assignor to American Pattern and Manufacturing Co., a copartnership consisting of said Miller and Alfred E. Wilson, Detroit, Mich.

Application August 12, 1941, Serial No. 406,527

25 Claims.

This invention relates to copyholders for supporting material to be copied and more particularly to a holder of the type wherein relatively movable copy carrying and sighting members are movable relatively to each other by novel and irnproved manually operable means.

Copyholders of the types heretofore developed have not been entirely satisfactory for a number of reasons. For example, some of the more ob- `iectionable features are that the adjustments for controlling the line spacing movements of the relatively movable members are so complicated that they are used by only a few operators; the devices are not of such compact form that they can be stored in an operative position with a typewriter in the compartment of a desk; they cannot be collapsed to a compact form whereby they can be readily carried; one of the relatively movable members does not disengage the copy before the copy is returned to a rst line indicating position and therefore care must be eX- ercised to avoid ruling the pages being copied; and it is diflicult to clamp the material being copied to the copy carrying member.

An object of this invention is therefore to provide a copyholder of improved and simplified design which may be readily used by inexperienced operators to accurately follow line spacings of varying dimensions.

A further object of the invention is to provide a copyholder of compact and rugged design which may be readily stored in an operative position with a typewriter, and which may be collapsed to a compact inoperative position of generally rectangular shape whereby it may be readily carried.

` Another object is to provide an improved actuating mechanism for a copy carrying member whereby substantially equal forces are applied at spaced points through improved motion transmitting means to actuate opposite sides of the copy carrying member in unison.

Yet a further object of the invention resides in the provision of readily accessible manually operable means for adjusting the movement of the copy carrying member to correspond with varying line spacings of material being copied, and separate manually operable control means to permit movement of the copy carrying member a single line space or a plurality of line spaces by actuation of a conveniently located operating lever.

Still another object .is to provide interconnected oppositely extending motion transmitting means for supporting a vertically adjustable sighting bar in such a manner that in any vertically ad' sighting bar' remains horimembers in such a mannerth'at'the supporting members are moved angularly relative to the copy carryingmember to space the sighting bar from the copy carrying member before vthe copy carrying member is released to return toa first line position.

Yet a further object of theinvention is to pro# vide a copyholder having spaced interconnected rigid motion transmitting means for elevating and lowering a copy carrying member relativeto a sighting bar.

Still another object isto provide a copyholder having nested telescoping vtubes forv supporting and controllingl the vertical position oi a copy carrying member, the tubes" being pivotally mounted on a supporting member in such a manner that they maybe folded to a collapsed inf-m operative position to facilitate carrying the device.

Another object of the inventionresides in provision of an improved copyholder havingrelatively movable copy carrying and sighting members controlled by novel interconnected motion transmitting means in such a lmanner1 that as the copy carrying member is returnedto a starting position-the sighting and copy'carrying members move apart to avoid rullling of the material carried by the copy carrying member.

A further object of the invention is to provide positively actuatedspaced simultaneously controlled motion transmitting means for actuating spaced supporting' columns for a copy carrying member of a copyholder, n

Still another object is to provide an improved copyholder of simplied design which may be economically manufactured.

Other objects and advantages of this invention will be apparent from the following detailed description -considered in connection with the accompanying drawings, submitted for purposes of illustration only, and not intendedV to define the scope of the invention, reference being had for that purpose to the subjoinedclaims.

'In the ldrawings wherein similar reference characters refer to similar parts throughout the several views:

Fig. 1 is a perspective view of the complete copyholder in the operative position.

Fig. 2 is a front elevation, partly in section, of a copyholder, taken substantially on the line 2-2 of Fig. 3 looking in the direction of the arrows.

Fig. 3 is a side elevation, partly in section, taken substantially on the line 8 3 of Fig. 2 looking in the direction of the arrows'.

Fig. 4 is also a side elevation, partly in section,

taken substantially on the line 4-4 of Fig. 2

looking in the direction of the arrows.

Fig. 5 is a sectional view, partly in elevation..

taken substantially on the line 5 5 of' Fig. 3', looking in the direction of the arrows.

Fig. 6 is a .sectional view taken substantially' on the line 6--6 of Fig. 4, looking in the direction of the arrows.

Fig. 7 is a sectional view taken substantially'on the line I--'I of Fig. 2, looking in the direction of the arrows.

Fig. 8is a sectional'view taken substantially on the line 8-8 of Fig. 5, looking in the direction of the arrows.v

Fig..9 is a sectional view taken substantially on ther line 9-9 of'Fig. 2, looking downwardly in the direction of the arrows.

Fig. 10 isa top plan viewl taken substantially on the line I U'-I Il of Fig. 2.

Fig. 11 is a perspectivev view of the copyholder in the fully collapsedV and folded position.

Fig. 12 is a sectional view taken substantially on the line I2^I2 of Fig. 2, looking in the direction of the arrows and showing theY manually operable means whereby the copy carrying member may be returned to a rst line indicating position.

Fig. 13 is a fragmentary sectional view of a portion of the interconnected sighting bar-actuating mechanism.

Fig. 14 isa sectional View of an improved attaching bracket employed to clamp the copyholder to a table or desk;

Fig. 15 isa-rear elevational view of the attaching bracket taken substantially on the line I5-I 5 of Fig. 14, looking in the direction of the arrows.

Before explaining in detail the present invention it i-s to be understood that theV invention is not limited in its application` to the details of construction and. arrangement-of parts illustrated. in the accompanying drawings. since the invention is capable of other embodiments and of being practiced or carried out in' various ways. Also itis to be understood. thatthe phraseology or terminology employed herein is for the purpose of description and not. of limitation. and it is not intended to limit the invention claimed herein beyondthe requirements of the prior art.

Referring. now to Fig. l, it will be observedV that the copyholder comprises a copy holding member I0 detachably connected to spaced right and left supporting elbows I2 and I4. The elbows I2 and I4 are carried by laterally spaced groups of nested right and left telescoping tubes I6 and I8 pivotally mounted in a generally rectangularly shaped housing 20. The vertical position of the copy carrying memberv Il) may be controlled by an actuating lever 22 projecting from the housing and operably connected to control the vertical movement of the groups of telescoping tubes I 6 and I8v by novel motion transmitting mechanism.

The lever 2-2 is hinged at 24 and is provided with a slide locking mechanism 25 whereby it may be folded across the front of the housing 2!)v as 75 illustrated in Fig. 11 wherein the copyholder is illustrated in the collapsed and folded position. The housing 20 has spaced supporting feet 28 of suitable resilient material, and a rigidifying arm 30 hingedly connected to the housing 20 by a hinge 32.

A backing shield 34 formed of any suitable material such for example as heavy fabric treated to prevent the now of light therethrough may be provided to shield the space between the copy carrying member I0 and the housing 20. 'Ihe shield 34 is provided with reinforced apertures to receive spaced pins 3B carried by the copy carrying member II) rto operably connect the shield to the copyv carrying member.

A preferably transparent sighting bar 38 having a reading line 39 is carried by spaced right and left supporting

members

40 and 42 projecting from the housing 20. The supporting

members

40 and 42 are vertically adjustable to position the sighting bar 38 at any desired vertical elevation above the housing 20 and to position it to engage or lie adjacent the material supported on the copy carrying member IU.

As illustrated infFig. 2, the groups of telescoping tubes IB and I3 preferably include rotatable right and left external master tubes 44 and 45 and

internal tubes

48 and 50 held against rotation by the elbowsV I2 and I4 respectively supporting the copy carrying member I 0. The

external tubes

44 and 46 each has an actuating pin 52 xed adjacent its upper ends, and each of the

internal tubes

48 and 50 has an actuating pin 54 iixed adjacent itsv lower end.

Duplex actuating members having external and

internal tubes

56 and 58 respectively may be interposed between the

external master tubes

44 and 46 and the internal,

tubes

48 and 50 of each group of tubes IS and I8 respectively. Each of the external tubes 56 of each of the duplex members has a, helical groove 60 to receive the actuating pin 52 of each of the

external master tubes

44 and 46, and each internal tube 58 of each duplex member has av helical groove 62 to receive the actuating pin 54 of each of the internal

non-rotatable tubes

48 and 50.

The helical grooves 60. and 62 of the external and internal tubes 5S and 58 respectively of each of the duplex actuating members are of equal pitch and are preferably staggered with reference to each other at one end. If desired, the tubes 5B and 58 of the duplex members may carry the actuating pins, and the helical grooves may be formed in the

externalmaster tubes

44 and 46 and in the

internal tubes

48 and 50. It will be apparent that, the duplex actuating members may be provided with one actuating pin and one helical groove positioned to cooperate with actuating pins and helical grooves associated with the internal and external tubes.

If greater lengthrof travel of the copy carrying member is required than can be procured with single duplex actuating members, an additional actuating tube having an actuating pin or a helical groove or one or more duplex actuating members having actuating pins or helical `grooves may be provided` Such additional actuating members may be positioned either inside or outside of the illustrated tubes. It will also be apparent that if desired a single group of telescoping actuating members may be provided and the copy carrying member may be guided by telescoping guide rods pivotally mounted in the housing 28.

Means may be provided to control the rotation ofthe rightandleft

external master tubes

44 and 46 to cause them to rotate in unison to controlvthe vertical position of the copy carrying member l0. One desirable form of such control means comprises rightand left actuating members 66( and 68 operably connected to the external master tubes 44 and l46.

The

actuating members

66 and 68 are carried by laterally spaced right and left brackets 10 and i2 pivotally mounted by means of the pivots 'H and-,i3 oni-laterally spaced supports 14 and 'I6 respectively carried by a backbone member 18 of the main frame 80 of the copyholder.

The right and left brackets I and 12 have upper and lower anges 82 and 84 respectively in vwhich-the

external master tubes

44 and 46 are rotatably journalled. Each of the right and left actuating

members

66 and 68 has a radially extending driving

ange

86 and 88 adapted to be clamped to the right and left external master tubes 44'and 46 respectively by means of axially extendingbushings 90 and threaded plugs 92 (Fig.v

.Spaced right and left driving

disks

94 and 96 areprovided to drive the

flanges

36 and 88 respectively. The driving

disks

94 and 96 are fixed to'right'and left sleeves 98 concentrically mounted on' axially extending bushings |00 interposed between the right and left hand external tubes 44 and/45 and the lower flanges 84 of the right and left'brackets 10 andIZ.

As illustrated in Figs. 4, 5, `'7 and 8, the surfaces of the right and left

hand driving disks

94 and 96 adjacent the respective driving flanges 86v and 88 are contoured to provide V-shaped surfaces'between the respective disks and flanges to receive aplurality of spaced rollers |02 to rotate the

ilanges

86 and 88 and the master tubes 44 and '46 when the right and left disks 94 and 96eme rotated in one direction.

Yielding means such for example as a spring |04 ccncentrically mounted on each of'the right and'left

master tubes

44 and 46 are interposed between each of the

disks

94 and 96 and the lower anges 84 ofthe right and left hand brackets 'l0-and 1.2. The springs |04 urge the

disks

94 and 96 towards a predetermined position wherein the pins |08 fixed in the bushings |00 move in horizontally extending slots |09 aligned with an gularly inclined slots |08 formed in the sleeves 98. as illustrated in Fig. '7.

The rollers |02 are yieldingly urged towards a `driviuig position'in engagement with the right and

left hand disks

94 and 96 and the flanges 86 and '88 by springs ||0 projecting from the

disks

94 and 96 and extending around the edges of sleeves 98 as illustrated in Fig. 8.

spaced right and left auxiliary driving disks ||2 and A| |4 are provided to hold the right and left-

flanges

86 and 88 against backward rotation when the driving

disks

94 and 96 are being returned to their normal position under the influence of the springs |04 associated with the right and left

master tubes

44 and 46 respectively.

The auxiliary disks 2 and ||4 are iixed to right and left sleeves ||6 surrounding axially extending-bushings ||8 interposed between the upper flanges 62 of the right and left hand brackets I0 and '|2 and the master tubes 44 and 4-6 (Fig. 5). Spaced rollers |20 interposed between contoured portions of the auxiliary disks H2 and ||4 and the right and

left hand flanges

86 and 88 produce a wedging force on the

flanges

86 and 88 to prevent them from rotating back wardly when the driving disks'94 and 96 are released.

Stop pins |22 carried by the right and left hand bushings ||8 project into angularly inclined slots |24 of the sleeves ||6 to limit rotational movement ofthe right and left hand auxiliary disks ||2 and ||4 in one direction. Yielding means such for example as springs |26 concentrically mounted on the

tubes

44 and 46 engage the auxiliary disks ||2- and ||4 and the right and left hand Iianges 82 to yieldingly urge the auxiliary disks towards a predetermined position with the pins |22 engaging the material dening the end of the slots |24 as illustrated in Fig. 7.

Means may be provided to simultaneously.

rotate the right and left driving disks 94 and 96A to actuate the right and left

hand driving anges

86 and 88 and

tubes

Means may be provided to release the driving and auxiliary disks to permit the right and left

master tubes

44 and 46 to rotate in the opposite direction to lower the copy carrying member l0.

The links |36 and |38 operably connected to the right and left driving

disks

The right and left auxiliary holding disks ||2 and |4 are connected with the right and left hand arms |32 and |34 of the actuating rod |30 by links |44 and |46 projecting into the auxiliary disks ||2 and ||4. The links |44 and |46 are provided with releasing stop members |48 positioned to be engaged by the arms |32 and |34 when the actuating rod |30 is rotated in the clockwise directionas viewed in Fig. '7.

Backward` movement of the arms |32 and |84 by rotation of the actuating rod |30 in the clockwise direction as viewed in Figs. 3 and 7 is transmitted through the releasing stop members to subject the links |38 and |38 operably connected to the driving disks to tension and also to subject the links |44 and |46 operably connected 'Y to the auxiliary disks to tensio-n. The driving

disks

leftY hand anges

86 and 88.

In a similar manner the links |44 and |46 cause auxiliary disks away from the

flanges

86 and 88 against the resistance of the spring |26 to interrupt the driving connection of the rollers with the

flanges

86 and 88. v`

The actuating shaft is provided with a downwardly extending arm having an enlarged aperture to receive a rod |52 fixed to the backbone member 18 of the main frame 80. The rod |50 carries a plurality of spaced springs |54 and |56 which exert a force onthe arm |50 to yieldingly urge the actuating shaft |30 to return to a substantially predetermined inoperative position.

Manually operable means may be provided to vary the extent of vertical movement of the copy carrying member |0 by movement of the actuating lever 22 to readily accommodate the device for use with copy material having lines spaced at varying distances apart.

If the bracket |62 is moved to position the stop member |60 farther from the actuating shaft |30, it will obstruct angular movement of the actuating lever 22 sooner than it will if it is spaced closer to the actuating shaft. The rotational movement of the actuating shaft |30 controlling the vertical position of the copy carrying member |0 can therefore readily be changed by varying the distance between the stop member |60 and the actuating shaft |30 by movement of the bracket |62.

Means may be provided to indicate the extent of vertical movement of the copy carrying member by predetermined movement of the actuating lever 22. One desirable form of such indicating means comprises cooperating scales |14 and |16 carried by the sighting bar 38 (Figs. 1 and 2) and the end of the housing 20 respectively (Fig. l1)

The sighting bar 38 may be formed of transparent material or may have a transparent section to carry the scale |14. Y

The bracket |62 is provided with a lug |18 having a reference line adapted to cooperate with the graduations of the scale |16 ofthe housing 20 (Figs. 9 and 11) to indicate the vertical movement of the copy' carrying member I0 relative to the scale |14 on the sighting bar 38 upon actuation of the lever 22.

To adjust the stop member |60 to control the vertical movement of the copy carrying member I0, the reading line 39 of the sighting bar 38 may be aligned with the bottom of a line of type of material mounted on the copy carrying member I0. One of the graduations of the scale |14 on the sighting bar 38 is aligned with the bottom cf the next line of type of the material to be copied (Figs. 1 and 2). This indicates the desired position of the reference line |80 of the bracket |62 relative to the graduations of the scale |16 (Figs.

9 and 11) to permit movement of the copy carrying member |0 a Vertical distance corresponding to the vertical distance between the lines of the material to be copied.

Assume for example that when. the reading line 30 of the sighting bar 38 is' aligned with the bottom of one line of material to be copied, the bottom of the next line of material is in alignment with the horizontal line indicated by the numeral 3 of the scale |14. The bracket |62 should then be positioned so that the reference line |80 of the lug |18 is aligned with the numeral 3 of the scale |16 carried by the housing 20 as illustrated in Fig. 11. The clamping screw |10 should then be tightened to clamp the bracket 62 in a fixed position relative to the end member of the main frame 80. The copy carrying member I0 will then be elevated a distance corresponding with the distance between lines of type or the distance between the ruling linev 38 and the graduation indicated by the numeral 3 of the scale |14 each time the lever 22 is actuated. Means may be provided to permit vertical movement of the copy carrying member I0 corresponding with single, double or triple spacing of the distance indicated by the reference -line |80 relative to the graduations of the scale |16.

The arm |6| can be moved angularly on the pin |64 to move all of the stop members |60, |06 and 88 out of alignment with the path of travel of the actuating lever 22 to permit unlimited vertical movement of the copy carrying member I0 by actuation of the lever 22.

The housing 20 adjacentthe aperture |92 may be provided with a scale |94 to indicate the position of the lever |90 to selectively align one of the stops |60, |86 or |88 with the path of movement of the actuating lever 22 to permit single, double or triple spacing. A reference character is also provided to indicate the position of the lever |90 when none of the stops are in the path of movement of the actuating lever 22 to permit innite movement of the copyv carrying member I0.

Means may be provided to permit vertical adjustment cf the sighting bar 38 to suit the convenience of different operators. v

The supporting

members

40 and 42 for the sighting bar 38 are preferably flexible, and are interconnected in such a manner as to maintain the sighting bar horizontal in anyvertical position to which it may be moved.

As more clearly illustrated in Figs. 2, v9 and 13, the supporting

members

40 and 42 are formed of closely wound coils of spring wire slidably mounted in

parallel tubes

200 and 202 respectively. It will be noted that the tube 202 has a curved section 204 connecting with a tube 206 extending parallel with the tube 200.

The supporting

members

40 and 42 are interconnected by a bracket 208 as illustrated in Fig.

13. The side walls of the

tubes

200 and 206 are cut away as illustrated at 209 in Fig. '1 whereby the bracket 208 may slide longitudinally of the

tubes

200 and 206. This movement of the bracket 208 operates to feed the supporting

members

40 and 42 equally through the

tubes

200 and 202. "

I'he tubes

200 and 202 are aligned with angularly vinclined directing nozzles 2|0 and 2|2 carried by brackets 2|4 and 2|6 respectively. The

tures 2i8 and 220 formed in the top of the housing 20.

The upper ends of the supporting members :40 and 42 are provided with angularly extending

projections

222 and 224 respectively adapted to receive

spring clamping brackets

226 and 228.

yThe spring brackets 226- and 228 engage horizon-

Itally extending projections

230 and 232 respectively carried by the sighting bar 38. The spring vbrackets 226 and 228v yieldingly engage the projections 230'and 232 of the sighting bar 38 to `yieldingly hold it in any desired angular position relative to the material clamped to the copy carrying member |0.

The supporting

members

40 and 42 may be telescoped into the

tubes

200 and 202 to extendtransversely within the housing 20 and per- Amit the sighting bar 38 to be lowered to a collapsed position to' lie on the top'of the housing 20.

Thespring brackets

226 and 228 permit 'the sighting bar 38 to 'rotate on the horizontally 'extending portions. of the projections 222 and Motion transmitting means may be provided to separate the'sighting bar 38 from the material supported on the copy carrying member before the actuating members are released to permit lowering of the copy carrying member |0 to avoid ruiiiing of the material being copied.

One desirable form of such motion transmitting means is illustrated in Figs. 2, 7 and 9.` The actuating shaft |30 is provided with an arm 240 adapted to receive a link 242. The link 242 has a contoured end portion 244 of a radiusl corresponding with the length ofthe arm 240 whereby the arm 240 may move freely on the contoured portion of the link when the shaft |30 is actuated in the counterclockwise direction as viewed in Fig. '1 to elevate the copy carrying member l0. The link 242 is provided with a stop memj ber 246 positioned to be engaged bythe arm 240 to actuate the link 242 when the shaft |30 is rotated in the clockwise direction as viewed in Fig. 'l to release the

actuating members

66 and 68.

The link 242 is operably connected to an arm 248 fixed to the tube 200 in such a manner as to oscillate the tube 200 when the actuating shaft |30 is rotated to release the copy carrying member I0. Oscillation of the tube 200 is transmitted 'through the

tubes

202 and 206 to move the directing nozzles 2 0 and 2 2 angularly in the counterclockwise direction about the pivot points 2|5 and 2|1 of the brackets 2|4 and 2|6 on the main frame member. Angular movement of the directmay be provided to yieldingly urge the supporting members -40 and 42 in the clockwise direction as viewed in Figs. 3 and 7 to yieldingly maintain the sighting bar 38 in engage-ment with the material supported on the copy carrying vmember I0. The spring 250 also maintains the link 242 in the forward position illustrated in Fig. 7 wherein it does not interfere with counterclockwise movement of the arm 240 and actuating shaft |30. The aperture in the arm 240 which receives the contoured portion 244 of the link 242 is'of sufficient size to prevent binding of the arm on the link due to angular displacement of the link 242 caused by material clamped to the copy carrying member I0.

The sighting bar actuating linkage is so proportioned that the sighting bar 38 is released from the copy material supported on the copy carrying member |0 before the actuating mechanism controlling the vertical position of the copy carrying member is released. The possibility of ruling the copy material supported onthe copy carrying member or causing binding of material between the copy carrying member and the sighting bar is thus eliminated.

The shield 34 which as previously stated may be formed of any suitable material such as heavy fabric may be attached to a roll. 260. The roll 260 is supported in

brackets

262 and 264 carried by the main frame (Figs. 2 and 9). The roll-260 has an internal spring to exert a force to wind the shield 34 on the roll, and to assist the force of gravity acting on the copy carrying member I0 and telescoping tubes to return the copy carrying member to the retracted position.

Means may be provided `to adjustably vary the retracted position of the copy carrying member l0 to permit it to return to a rst line position when the actuating mechanisms 66 and 60 are released.

One illustrative form of such control means comprises

adjustable stops

210 and 212 carried by the

internal tubes

48 and 50 respectively (Figs. 1 to 3). As more clearlyillustrated in Fig. 12,v the adjustable stops are provided with a spring clip 214 mountedon a pin 216 in such a manner that parallel bars 218 may lie within spaced slots 2180 formed in the inner tubes y48 and'. lBy actuating manually operable'clips`282 the

adjustable stops

210 and 212 may be moved to any-desired vertical position on the tubes '48 .and 50. Each of the adjustable stops. 210 and 212 isprovided with resilient bushings 284 positioned to engage the upper end of the duplex actuating members of the vtelescoping tubes |6 and .|8. When the actuating lever 22 is manipulated to release the actuating members 66an`d 68 the

stops

210 and 212 engage the duplex members to prevent the copy carrying member` |0 from moving downwardly beyond a predetermined irst line indicating position.

The copy carrying member l0 is provided with a pair of oppositely extending

lugs

290 and 292 adapted to clampingly engage the elbows |2 and ing nozzles 2| 0 and 2|2 moves the supporting :

members

40 and 42 angularly in the counterclockwise direction as viewed in Figs. 3 and '7 to separate the sighting bar 38 from the material carried by the copy carrying member |0.

A spring Y250 interposed between the arm 248 I and the front member 252 0f the main frame B0 |4 respectively. The copy carrying member I0 is also provided with an upper rolled bead 286 forming horizontally `extending( tubes 298r adapted to receive the horizontally extending portions ofthe elbow members I2 and |-4 whereby the copy carrying member |0 may be securely-mounted on the telescoping tube members |6 and I8 respectively. y Y Y Means may be provided to permit clamping Yof copy material to the copy carrying member |0at a plurali-ty of spaced points. One desirable form of such clamping means includes a pair of spaced bails 3I6 and 3I2. The bail 3I6 is pivotally connected to the back of the copy carrying member I 6 by means lof brackets 3 I 4 and 3 I 6 riveted thereto (Fig. 10) The bail 3I2 is pivotally mounted on the copy carrying member by means of brackets 3I8 and 326 respectively. Each of the bails 3I6 and 3I2 is provided with

coiled springs

322 and 324 respectively whereby the front portions ofthe bails are yieldingly urged into engagement with the face of the copy carrying member I6 to releasably clamp material to be copied to the face of the member I6. Spaced actuating means 326 and 328 may be provided to permit separate movement of the bails 3I 6 and 3 I 2 to selectively clamp material to the face of the copy carrying member.

Auxiliary bails 336 and 332 (Figs. 1, 2 and 10) may be provided to engage material such for example as a stenographers notebook where the pages turn over longitudinally to lie adjacent the rear portion of the copy carrying member I6. The

bails

336 and 332 are carried by

brackets

334 and 336 respectively pivotally mounted on

brackets

338 and 346 riveted or otherwise suitably secured to the copy carrying member I6. Yielding means such for example as

springs

342 and 344 may be provided to yieldingly urge the auxiliary bails 336 and 332 into engagement with the material to be copied.

It will be noted that the :

brackets

334 and 336 are pivotally mounted to the

brackets

338 and 346 in such a manner that the

bails

336 and 332 may be moved to any desired angular position relative to the copy carrying member I6. Manually

operable means

346 and 348 may be provided te actuate the

bails

330 and 332.

Adjustable right and left clamping brackets 366 and 362 may be provided to clamp the copy carrying member to a table or desk. Referring to Fig. 14, it will be observed that the clamps 366 and 362 have a horizontally extending portion 364 having resilient pads 365"adapted to underlie a surface 366 to be engaged. The clamps 366 and 362 include staggered vertically extending

portions

368 and 316 positioned to lie outside and inside respectively of the housing 26. A manually operable handle 312 is provided to move the bracket downwardly against the resistance of a spring 314 carried by a bracket 315 to move the horizontally extending portion 364 and pad 365 into engaging position with the bottom of the surface 366. The bracket 315 is pivoted to the housing 26 by means of a rivet 311 whereby the bracket can move angularly relative to the housing 26.

Referring to Fig. 15, it Will be observed that a pair of oppositely extending

slots

314 and 316 are provided in the housing 26 to permit movement of the brackets 366 and 3'62 to an inoperative position as shown in dot and dash lines wherein the portion 364 of each clamping bracket lies within the space between the supporting feet 28 and the bottom of the housing 26.

The operation of this device -is as follows:

Assume that the copy holder is in the fully collapsed and folded position illustrated in Fig. 11, and that it is desired to actuate it. The rigidifying arm 30 hingedly mounted to the casing 26 is rotated on the hinge to align it with the end of the casing 26 as illustrated in Fig. 1. The copyholder is then positioned on whatever surface it is desired to attach it to and the manually operable levers 312 are actuated to position the attaching clamps -in the position indicated in full lines in Fig. 15. The levers 312 are then depressed to position the horizontal portions 364 and pads 365 to underlie the surface 366 to which itis desired to clamp the copyholder.

The guide arms 29| and 283 engaging the lugs 266 and 262 and extending into the head 296 of the copy carrying member I6 are rotated outwardly to release the copy carrying member.

The copy carrying member I6 may then be removed from the top of the housing 20 and the telescoping tubes I6 and I8 pivoted about their respective angularly inclined pivot points 1I and 13 on the

brackets

14 and 16 to move them from the inoperative dotted line position of Fig. 10 to the elevated operative position. The links v|36 and |44 provided to actuate the telescoping tubes I6, and the links |38 and |46 which actua'te the tubes I3 are twisted relative to each other as more clearly illustrated in Figs. 4, '7, 8 and 9. This twisting of the actuating links permits them to open up or separate as the tubes are moved to the horizontal or inoperative position illustrated in Fig.l 10 and to assume the twisted operative position when the tubes are moved to the upright or operative position. The horizontal portions of the elbow members I2 and I4 carried by the telescoping tubes should then be projected into the tubular portion 268 formed at the upper portion of the copy carrying member I6 and the spring clips 286 and 292 of the copy carrying member I6 moved into engaging position with the vertically extending portion of the elbow members I2 and I 5l. The shield 34 should then be partially with- 'drawn from the housing 26 and its reinforced apertures placed over the spaced pins 36 of the .copy carrying member to secure the shield to the movable copy carrying member I6.

The supporting

members

46 and 42 should then be elevated to position the sighting bar 38 at whatever vertical position the particlular operator desires to observe the material being copied. The interconnection of the supporting members induces them to move vertically in unison thereby maintaining the sighting bar 38 horizontal in any elevated position to which it may be moved. The sighting bar 38 may be rotated on the spring clamps 226 and 228 to a vertical position in substantial alignment with the copy carrying member I6 and shield 34.

The actuating bar 22 should then be pivoted about the hinge 24 from the position illustrated in Fig. 11 to the position illustrated in Fig. l, and the locking mechanism 26 moved to lock the spaced portions of the actuating member 22 as illustrated in Figs. l and 3.

If sheet material is to be copied, the manually operable means 326 and 328 (Fig. 10) may be actuated to pivot the spaced bails 3I6 and 3I2 Aabout their respective brackets whereby the material to be copied may be projected under the forward portions of the bails and yieldingly engaged when the bails are released. It will be noted that the bails 3I6 and 3I2 may be actuated separately whereby material to be copied may be clamped by one of the bails to permit adjustment of the material relative to the other bail. Greater exibility of control of the material to be copied is thus provided.

IfV the material to be copied is in the form of an open-ended notebook such for example as a shorthand book, the cover or portion of the notebook to be folded back is passed under the bail 3I6, and the book is held by the bail 3I6. In order to prevent the flexible pages from falling back in front of the work being copied the bail 330 may be rotated on its pivot/ed bracket 334 to ,engage the foldedA pages from the front and slightly above the bail 3|0 to yieldingly maintain them out of the line of vision with respect/to the material being copied. The

bails

338 and 332 `being'pivotedpermit of considerable flexibility in controlling the position of various types of material' being' copied. If desired, they may be used as separator or indexing markers in con- `nection with the material being copied.

vIf the material to be copied is in the form of 'an open-ended notebook which is too large to be engaged by the bail 3|0, the actuating

members

346 and 348 may be manually moved downwardly to elevate the bails 33|) and 332 vand the notebook in the open position may be laid over the top of the copy carrying member I8. The t bails 330`and 332 may then be released to yieldingly engage the notebook or other material to be copied to prevent displacement thereof.

The

adjustable stop members

218 and 2`|2v should be adjusted on the right and left

tubes

48 and 50 to position the copy carrying member I0 v at a desired elevation or 'lrst line indicating posiftion relative to thesighting bar 38.

"elevated by partial strokes of the actuating member'22 to position the reading line 38 of the 'sighting bar 38 adjacent the bottom of one of the'linesof material to be copied. The horizontal lines of the scale |74 carried by the transparent sight bar. A38 should be observed to detervmine which of the horizontal lines of the scale lies adjacent the bottom of the next line to be copied and the numeral opposite such line noted; The clamping nut Ill] (Figs. 3 and 1l) shouldY then be loosened and the bracket |62 moved foriwardly or backwardly relatively to the end of the housing 28 to'align the reference line |80 oi the lug |18 with the numeral of the scale |76 corresponding with the numeral referred to above of the scale |74. The clamping screw nut |70 should thenv be .tightened to clamp the bracket |62 to `the end member of the frame 80.

If single spaced' lines of the material to be.v H,copied are desired, the manually operable mem- If double.

, The copy carrying member |0 may then be in alignment with the actuating member |22. If unlimited movement of the copy .carrying member is desired, the arm |6| is rotated on the pivot |64 to the extreme right hand position to vmove all of the stops out of alignment with the actuating member 22. Downward movement of the actuating member 22 oscillates the actuating shaft |30 from the neutral position illustrated in Figs. 8, 4 and '7. The shaft |30 is operably connected by means of the arms |32 and |34 and links |36 and |38 with the

actuating disks

84 and 86. Oscillationof the shaft |30 in the counterclockwise direction as viewed in Figs. 3, 4 and 7 rotates the right and left

actuating disks

94 and 96 in the clockwise direction as viewed in Fig. 8.

lMovement of the

actuating disks

94 and 96 is transmitted through the spaced rollers |02 to rotate the

ilanges

86 and 88 Xed tothe outer master tubes 44L and 46A respectively. Rotation of the

tubes

44 and 46 is transmitted through the duplex actuating member and actuating pins 54 to elevate the

internal tubes

48 and 50 and the copy carrying member I0. When the actuating lever is released, the springs |04 and |54 return the actuating disks 94. and 96 and the actuating shaft |30 and the lever 22 to their inoperative positions.

When the

actuating disks

94 and 98 release the

anges

86 and 88 to return to their inoperative positions, the auxiliary disks ||2 and ||4 yieldingly, urged by their springs |26, position vtheir spaced rollers |20 inengagement with the l Aiianges 86 and 88 to prevent backward rotation of the flanges and the

master tubes

44 and 46.

h When the

external master tubes

44 and 46 have thus been actuated a suicient number of times to elevate the

internal tubes

48 and 5 0 the full length of the` internal tubes 58, the actuating pin 52 carriedby the

external tubes

44 and 46 engaging the helical slot of the tubes 56 of the duplex actuating members-elevate the tubes 56 and158 `to further elevate the copy carrying clockwise direction as viewed in Figs. 3, 4 and '7.

This movement'of the actuating shaft |30 is transmitted 'through thestop members |42 of the 'links |36l and |38 operablyconnected to the "actuatingdi-sks 94 and 96, and through the stop members |48 carried by the links |44 and |46 operably connected to the auxiliary disks ||2 vand ||4.j This movement of the -actuatingand auxiliary disksrotates them in the counterclockwise direction as viewed -in Figs. 8 and 9. Re-

ferring to Figs. 5 and 7, it will be noted that the pins |138 `and |22 carriedby the bushings y|00 and ||8 slidewithin the slots |08 and .|24

j of the sleeves 98 ,and I6 to separate the actuating and auxiliary disks from the

lactuating flanges

86 and 88 respectively.

.The Aforce of gravity acting on the copy carrying memberl and the elevated tubes, together with the weight of the material being copied and the force exerted by the spring in the roll 268 carrying the shield 34,.moves the telescoping tubes toward the collapsed position thereby returning the copy carrying member to the first line indicating position. When the lever f22 is 'released'the spring |56 returns the shaft |30 to the neutral o r inoperative position.

, As the actuating, lever 22.is elevated to release the copycarry'ing member to permit it to move to fthelretractedposition, the link 242 actuatedby the` arm 240 oscillates the arm 248 fixed to the tubfe'1`200 in the 'counterclockwise direction as viewed in Fig. 7. Oscillation of the tube 200 operatesthrough

theassociated tubes

202 and 206 topivot the directing nozzles 2|0 and 2| 2 car- `movable member comprising rotatable telescopin'g tubes, and motion transmitting means for rotating the telescoping tubes. l

2. In a copyholder, a sighting bar, a copy car- 'rying'memben motion transmitting means comprising nested rotatable telescoping tubes for supporting and moving the copy carrying member relative to the sighting bar, and manually operable means for rotating the rotatable tubes.

43. A' copyholder comprising a generally hori- `zontally extending sighting bar, a copy carrying member movable vertically relative to the sighting bar, transversely spaced groups of telescoping tubes supporting the copy carrying member, and motion transmitting means for actuating said groups of telescoping tubes in unison to move the copy carrying member.

4. A copyholder comprising a copy carrying member movable vertically from ya retracted .po-

sition, means to elevate the copy carrying member comprising transversely spaced groups of nested telescoping tubes including rotatable and non-rotatable tubes operably connected to the copy carrying member, cooperating motion transmitting means between said tubes operable by rotative movement of the rotatable tubes, means including rotatable radially extending flanges to actuate the rotatable tubes, an actuating shaft rotatable in opposite directions from a neutral position, means engaging said anges and operable by rotation of 'the shalt in one direction from the neutral position to rotate said flanges in unison to elevate the copy carrying member, means engaging said flanges and operable upon release of said shaft to hold the copy carrying member against downward movement, and means operable upon reverse rotation of said shaft from the neutral position to release the flanges to enable the copy carrying member to return to the retracted position.

5. In a copyholder, a support, a copy carrying member, motion transmitting means comprising telescoping rotatable and non-rotatable tubes interposed between the support and the copy carrying member whereby the copy carrying member may be moved vertically from a retracted position relative to the support upon rotation of a rotatable tube, a flange operably connected to said rotatable tube, an actuating shaft rotatable in opposite directions from a neutral position, actuating and holding disks spaced on opposite sides of the flange, driving means between said disks and the ange, yielding means urging the disks towards the flange, connecting means between the .actuating disk and shaft to rotate the flange and the rotatable tube upon rotation of the shaft in one direction from the neutral 'position to move the copy carrying member vertically 'relative to "the support, and connecting means `between said act-uating and holding disks and the shaft to move said disks axially in opposite directions rel- 'ative to the ilange upon reverse rotation `of the shaft from the neutral position Ito release the ilange to enable the rotatable tube to `rotate lin the opposite direction to return the copy carrying member to the retracted position.

6. In a copyholder, a housing, a sighting bar,

transversely spaced vertically adjustable interconnected exible members projecting from 'the housing for supporting the sighting bar substantially horizontally in any vertical position to which it is moved relative to the housing.

n 7. In a copyholder, a housing, a sighting bar, a pair of vertically movable spaced exible supports for the sighting bar, and motion transmitting means interconnecting said supports to induce the sighting bar to maintain a substantially horizontal position regardless of its vertical elevation relative to the housing.

8. In a copyholder, a housing, a sighting bar, means to support the sighting bar above the housing comprising spaced flexible supports projecting from the housing, guiding means for the flexible supports extending longitudinally in the housing, and means associated with the guiding means and interconnecting the flexible supports to induce the Ilexible supports to move in unison relative to the housing to maintain the sighting bar substantially horizontal in any vertical position to which it is moved relative to the housing.

9. In a copyholder, a vertically movable copy carrying member, a sighting bar positioned to lie adjacent the copy carrying member, motion transmitting means to elevate the copy carrying member relative to the sighting bar and to release it to return to a retracted position relative to the sighting bar, and connecting means between said motion transmitting means and sighting bar to space the sighting bar from the copy carrying member when the copy carrying member is released to return to said retracted position.

10. A copyholder comprising a housing, a copy carrying member movable vertically relative to the housing, motion transmitting means controlling the vertical movement of the copy carrying member in opposite directions, a sighting bar, means to support the sighting bar adjacent the copy carrying member, and connecting means between said motion transmitting means and the supporting means for the sighting bar to separate the sighting bar from the copy carrying member when the motion transmitting 'means 'is actuatedto permit a 'lowering ofthe copy carrying lmember relative to the housing.

11. A copyholder comprising a housing having 'a -frame, a vertically movable copy carrying member, motion transmitting means to intermittently elevate the copy carrying member relative to the housing and to release it to `4return 'to a retracted position, a sighting bar,means lto support the sighting bar adjacent the copy carrying member comprising spaced supportspivotally mounted on the frame and projecting from the housing, and connecting means "beltween'tlie Vpivotal supports and said lmotion transmitting means to move the supports angularly to space the sighting bar from vthe copy carrying member when the motion transmitting means is actuated to release the copy carrying member to return to said retracted position.

12. A copyholder comprising a vertically movablefcopy carrying member, motion transmitting -elevation of the copycarryinglmember.

13, A copyholder 'having 'a frame member. na

copy carrying member, means for intermittently elevating the copy-carrying member relative to theframe member a line space at a time, motion transmittingmeans comprising a shaft for actuating said elevating means, an actuating lever operably connected to the shaft, a bracket adjustably lmountedv on the frame and movable towards and away from the shaft, stop means including an arm pivotally mounted on the bracket, a plurality of substantially equally spaced stop members carried by the arm and selectively movable into alignment with the actuating lever, manually operable means controlling the position of the bracket on the frame to vary the distance between the stop means 'and the shaft to vary the intermittent movement of the copy carrying member upon actuation of the actuating lever to correspond with variously spaced lines, and manually operable means controlling the angular movement of said arm to successively align different of said stop members with the actuating lever to vary the intermittent movement of the copy carrying member upon actuation of said lever to provide movement of the copy carrying member corresponding with'single, doubleV or triple spacing of lines.

14. In a copyholder, a copy carrying member, a generally horizontally extending sighting bar having a transparent portion including a reading line and vertically spaced graduations to indicate the Vertical spacing of lines of material supported on the copy carrying member, motion transmitting means including a manually operable lever and a rotatable member to intermittently move the copy carrying member vertically relative to the sighting bar, manually adjustable stop means movable relative to said rotatable member to vary the vertical movement of the copy carrying member upon actuation of the manually operable lever, and spaced graduations associated with the adjustable stop means and cooperating with the spaced graduations on the sighting bar to indicate the extent of vertical movement of the copy carrying member relative e to the sighting bar.

15. A copyholder comprising a copy carrying member, means including telescoping tubes for supporting and intermittently elevating the copy holding member, motion transmitting means for releasing the copy holding member for return movement, and manually operable adjustable stop means associated with the telescoping tubes to arrest downward movement of the copy carrying member at a first line indicating position.

16. In a copyholder, a vertically movable copy carrying member, motion transmitting means for intermittently elevating the copy holding member, means for releasing the copy holding member for return movement, a sighting bar, means to support the sighting bar adjacent the copy carrying member, connecting means between the releasing means for the copy carrying member and the supporting means for the sighting bar to move the sighting bar away from the copy carrying member when said releasing means is actuated, and manually operable adjustable stop means associated with said motion transmitting means to arrest return movement of the copy carrying member at a rst line indicating position relative to the sighting bar.

17. A collapsible copyholder comprising a frame, a housing carried by the frame, a copy carrying member, spaced columns supporting the copy carrying member, hinge connecting means between the frame and said spaced columns whereby the columns may be folded from la substantially vertical operative position to a substantially horizontal inoperative position within the housing, a sighting bar, and spaced supports for the sighting bar comprising exible shafts movable from substantially vertical operative positions' to substantially horizontal inoperative positions within the housing.

18. A copyholder comprising a frame, a copy carrying member, spaced supports `for the copy carrying member, detachable connecting means between the copy carrying member andthe supports, angularly inclined hinge connecting means between the supports and frame whereby the supports may pivot about the hinge connections to a collapsed inoperative position, a sighting bar, spaced supports for'the sighting bar operably connected to the frame, and means associated with the sighting bar supports and frame whereby said supports may occupyv an inoperative collapsed position. Y

19. A copyholder comprising' members' movable vertically relative to each other, telescoping tubes supporting one of said members, motion transmitting means including relativelymovable actuating -and'holding disks toV move one of rsaid members vertically relative to the other, and a lever movable in opposite directions for controlling said disks, e

20. In a copyholder, a sighting bar, a copy carrying member, means controlling vertical movement of the copy carrying member in opposite directions relative to the sighting bar, and means responsive to downward movement of the copy carrying member to space the sighting bar from the copy carrying member,

21. A copyholder comprising a sighting bar, a

`copy carrying member movable relative to the sighting bar, motion transmitting means to elevate the copy carrying member relative to the sighting bar, means to release the copy carrying member to move downwardly relative to the sighting bar, and means operable upon actuation of the last named means to space the sighting bar from the copy carrying member.

22. A collapsible copyholder comprising a housing, a copy-carrying member, spaced supports for the copy-carrying member, hinged connecting means between the supports and the housing whereby the supports may be moved between upright operative and collapsed inoperative positions, detachable connecting means between the copy-carrying member and the spaced supports, a flexible light shield interposed between the copy-carrying member and the housing, detachable connecting means between the light shield and the copy-carrying member, a reel for the light shield rotatably mounted in the housing, a sighting bar, and connecting means between the sighting bar and the housing whereby the sighting bar may be adjusted vertically relative to the housing and may occupy an inoperative collapsed position relative to the housing.

23. In a copyholder, a frame, relatively-movable copy-carrying and sighting bar members, motion-transmitting means to intermittently move one of said members relative to the other, an angularly movable lever for actuating the motion-transmitting means, stop-carrying means comprising a bracket associated with the frame and movable longitudinally of the lever to vary the angular movement of the lever to change the movement of one of said members relative to the other to correspond with the vertical spacing between lines of copy material carried by the copycarrying member, ele-mp.lr.l .ff means; tof: lockel the; bracket aealrrstzmovement:,lengltuelinalbf relwtivef 'co-theeleveri, and;:means-.pvate1lyfmounedznrn the: brelelier anflheving: a: plurality-of selectively-owereblefstopfseemens adapted te bezseleetiyelylfper Slterledrlnlhe. nath of*movement-01meangulere. lsf-movable aetutng; leverv to; permit.: moylrxgzthe; movable member az distance; cerrespendpg: with: the.: speci-ngz' between: ell-:plurality: of lines ef; the copy-materiel.

2f1;.. Irl- 21;. Copy-helder: hav-ine; reletelxmovable; Copy-carrying end;;s ehtingrb.arn members, arf seele keying vertically-spaced greduetie. calmed-1w the;Slghtngrbarfmember-to: infllceiaesthe vertical-i spacing.betweendinee.oifcopy material1centri.efhbyf` the; Copy-carrying: member; el: framef. motion?` transmittingrmeens to intermittentl 0f seid@members-relative-fto:theeothe anfengu larly-movablea lever for: actuating: the@ rrllotioneA transmitting' means, stopfcarryjngzmeans.` comfM Y tions ande pointer) associated.; with; the'framef ande bracket-'f to indicate the; extent ofmovemenbI 0f?mesonsaisi;members:relative1:0-rizheothem.thet grwduatiensf of. cheflalstrnaunedscale-I corresponds inleg. withxthewerticallyspacedegraduations zothel Sealer carrledfby the sightingebar,and;c1amping. memset@lleeksthefbracket against;movement.1ongli:ucliaxralllyjz relfadziveto r thee actuating lever;

2.5..Im af conxholden having@v relatively, movable` cogmrcrryingandfsighting;barmembersg ausca-lev heyi-ngg-vertica11ly-spaced: graduationse carried, by@` the; Sightinggbar member@ to: ind-Vicatemhefverticale speeingf.; between. lines oiA copy, materiali carried'. byythelcopyeeanylnggmember; a..frame,mo.tionf transnntting-.gf meamsfy to .intermittently move. oner r; ofisadimembexjsfrelativetoftheother; stopfmeemnsv