US1451182A - Reading appliance - Google Patents

Description

A r. 10, 1923. 1,451,182 R. M. SEARLE READING APPLIANCE Original Filed Mar. 24, 1920 s sheets-sheet 1 z Fl n 6 4 j I 5g, i

INVENTOR Apr. 10,1923. 1,451,182

R. M. SEARLE READING APPLIANCE Original Filed Mar. 24, 1920 1 47 if 4a INVENTOR W W v z -41, ATTORNEYS I 5 sheets-sheet 5 Q-FFICE.

ROBERT M. SEARLE, OF ROCHESTER, NEW YORK.

READING APPLIANCE.

Continuation in part of application Eerial No. 368,311 filed March 24, 1920. This application filed April To all whom it may concern:

Be it known that I, ROBERT M. SEARLE, a citizen of the United States, and resident of Rochester, in the county of lilionroe and State of New York, have invented certain new and. useful Improvements in Reading Appliances, of which the following is a specification.

The present invention relates to reading appliances and this application is a continuation in part of an application filed by me on March 24, 1920, Serial No. 368,311. An object of this invention is to provide a reading appliance in which the field to be read is illuminated by an artificial means such as an electric light, and the eye strain of the reader is reduced to a minimum. Another object of this invention is to provide an improved mounting for a lens to magnify the field, this mounting permitting a ready adjustment of the lens toward and from the reading matter t obtain the properfocal distance. Another object of the invention isto provide a lamp housing with a shutter through which the a-mountor quantity of illumination of the field may be controlled. A further object of the invention is to provide a novel means of ren'ioving the red rays from the light before the rays strike the reading surface. A still further object of the invention is to remove the ultra violet rays from the reflected rays leading from the reading surface. Still another object of the invention is to provide an improved line guide which may be adjusted both parallel and angularly with relation to a line of reading. thus permitting the line guide to correspond to the position of a line of reading. A still further object of the invention is to. provide in a reading appliance of the type in which the work is fed vertically with reference to a line guide, an adjustment which will permit the line guide to occupy different positions with reference to the horizontal. Another and still further object of the invention is to provide in connection with a reading appliance having a line guide and a work support which are relatively adjustable, an ironing device which will. during the relative adjustment. maintain a substantially fixed relation with reference to the line guide. Still another and further object of the invention is to provide two ironing devices, one for cooperating with the work Serial No. 459,741.

above the line guide, and the other for cooperating with the work below the line guide, so that the work adjacent the line guide is held in a flattened condition. An-. other and still further object of the invention is to provide an ironing device of the type in which a line guide and a work support are relatively movable in a vertical direction through a suitable mechanism, an ironing device which will be controlled through said elevating mechanism to move automatically into and out of cooperation with the work support.

To these and other ends the invention consists of certain parts and combinations of parts, all of which will be hereinafter described, the novel features being pointed out in the appended claims.

In the drawings:

' Fig. 1 shows in elevation, a copy holder embodying this invention;

Fig. 2 is a detail view of a combined shutter and ray filtering tube used in connection with the lamp;

Fig. 3 is a section on the line 3-3, Fig. 2;

Fig. 4- shows in side elevation the lamp used in this invention;

Fig. 5 shows the embodiment illustrated in Fig. l in front elevation with parts broken away, the work support being in lowered position;

Fig. 6 is a view of the invention in side elevation;

Fig. 7 is a fragmentary view showing the manner in which the flattening .or ironing bars support the work guides;

Fig. 8 is an enlarged fragmentary plan view of parts seen to the right with reference to Fig. 1;

Fig. 9 is a section on the line 9-79, Fig. 8;

Fig. 10 is a fragmentary section of the carriage which supports the lens, the light filter and the lamp;

Fig. 11 is a fragmentary sectional view of one end of the light filter; and I V Fig. 12 shows in fragmentary side elevation. one of the arms which supports-the carriage. I

While the invention is herein shown as embodied in a copy holder, it will be understood that features hereof are capable of being embodied in other reading appliances and as to these features the invention is not of the work holder.

apparent that the invention is not limited to feeding the work with reference to the line guide and magnifying lens as any relative movement between these two parts is within the scope of this invention.

In the illustrated embodiment the work support moves vertically with reference to the line guide and to this end there is provided. a stationary or supporting frame 1 on which the work support 2 is vertically guided through the medium of guide rods 3 supported on said frame. Movement of the work support on the frame 1 may be effected through any suitable mechanism. In this instance, a double arm lever 4 is provided pivoted at 5 and having one arm projected forwardly to provide a finger piece and its rear arm connected by a loose joint 6 with a lever 7 which in turn is pivoted at 8 to the frame 1. This lever 7 is in turn pivotally connected at 9 to the lower end of a lifting rod 10 which through a clutch device 11 connects with a rod 13 secured to the rear face of the work holder 2. When the lever 4 is depressed at its outer end, the lifting and lowering rod 10 is moved upwardly and on this upward movement lifts the work holder 2 through the clutch 11. The work holder is held in this adjusted position by a retaining clutch 12 which is pivotally mounted on a fulcrum piece 14 and held downwardly into clutching relation with the rod 13 by a spring 15. The lowering of the work holder is effected through an upward movement of the outer end of the lever 4 which pulls downwardly on the rod 10 to straighten the clutch de vice 11 due to the cooperation with the frame of the portion of such device 11 adjacent the rod 13 and also effects the straightening of the clutch device 12 due to the shoulder 16 on the rod 10 cooperating with the clutch device and moving the latter on the fulcrum 14 against the action of the spring 15. The work holder then descends under the action of its own weight and the weight of any work thereon.

The work may be held on the work holder in any suitable manner. In this instance. a spring pressed clamping bar 17 is provided having arms 18 at its ends ournalled at 19 in the work holding frame 2 and adapted to permit the swinging of the clamping member 17 toward and from the front face helical spring 20 is anchored at its opposite ends 21 to the work holder and. serves to retain these sheets of the work which may he swung over the upper edge of the work holder. The foregoing parts are not claimed per se in this invention" as they are already well-known.

With the end in view of flattening or ironing the work below the work holding clamp 17 there may be provided two spaced ironing devices in the forms of rods 22 and and 23 having their laterally turned ends each secured in sockets 24 of two gear members and 26, these gear members being pivoted at 27 and 23 resoectively, and having interlocking portions 29 and 30. It is apparent that the movement of these two members together will effect the simultaneous movement of the ironing devices 22 and 23 toward and from each other. Simultaneous movement of the ironing derices may be effected by providing one of the gear members 25 with an arm 31 to which a link 32 may be pivotally connected at To this link one arm of double arm lever 34 is pivotally connected at 35, the double arm lever in turn being pivoted at 36 to the frame 1. and having its other arm provided with an extension 37 which is adapted to be engaged by the collar 16 on the push and pull rod 10 when said push and pull rod is lowered through the lever 7, this lowering movement effecting an automatic movement of the ironing devices 22 and away from the work support. A spring which is secured to the lever 39 and to the frame .1 tends to shift the lever 34 in direction to move the ironing devices toward the work. -The connection 37 between the lever 34 and the push and pull rod 10 permits the latter to be raised to elevate the work support without effecting the lever 34 or the ironing devices. It is apparent that the invention is not limited to the use of two ironing devices.

To the end that the ironing devices 22 and 23 may be held away from the work support during the lowering of the latter the lever 7 carries a detent 39 which is pivoted at 40 to the lever 7 and is adapted to cooperate with a keeper 41 secured to the frame 1. This detent 39 is held in the position shown in Fig. 1 by a spring 39. upward movement of the forward end of the lever to effect the descent of the work support 2, also effects the movement of the ironing devices 22 and 23 away from the work support and free of the work. This same upward movement of the lever 4 also effects the downward movement of the lever 7. thereby causin the free end of the detent to engage with the keeper 41 to move the detent against the action of the spring 39, in order that the keeper 41 may enter into the notch 39 in the detent and thereby efi'ect connection between the detent 39 and the keeper 41 so that the ironing devices 22 and 23 are held away from the work support until the lever 4 is again depressed to elevate the work support and elevate the lever 7, the wall of the notch 39 being such that the detent shifts on such upward movement of the lever '7 and becomes detached from the keeper 41. The spring, 38 will upon such depression return the ironing devices 22 into cooperation with the work in The v the lens.

order that the ironing or flattening out of the work will occur duringthe elevation of the "work support.

lVith the purposeln View of guiding or directing the work beneath the ironing devices while the latter are moving away from the work support, guiding clevices may be employed which are mounted upon the ironing devicesfand preferably move toward and from the work with said ironing devices.

These guiding devices, in this instance, each comprise a metal strip secured at one end at42 about the upper ironing bar 22, bowed inwardly to provide a resilient portion 43, extended in rear of the lower ironing bar 23 and having a portion 44 deflected downwardly and forwardly from the lower bar 23,

the metal being looped to form this deflected portion and also to form aspace 45 in which the lower ironing bar 23 may operate due to the fact that a relative movement between the ironing bars 22 and 23 occurs as the bars are moved through the 7 gears 25. The

bowed portion 43 acts to produce pressure which is provided near opposite ends with gears 49 arranged to roll'upon racks 50 formed on the arms 46, straps 51 being secured to the arms over the gears and serving to hold the gears 49 on the shaft 48 to the racks 50. The shaft 48 'is journalled in and connects two arms 52, each of these arms being provided with a slot in which a headed screw 54, secured :in an opening 55 in an arm 46 operates, the shaft'and the walls of the slots with the headedscrews serving to guide the carriage toward and so from the work support on the arms 46,

Each arm 52 may have a portion turned laterally at 52 to which an elongated lens 56 is preferably detachably secured. Any other suitable means may be employed for detachably securing the'lens to the carriage. In this embodiment, the lens is provided at opposite ends with substantially U' shaped metal clips 57 which have their opposed faces covered with a soft yielding material such as cloth .58 to engage opposite faces of These clips project beyond the ends of the lens and, in theirprojecting' portions are provided with slots 59 leading from the. lower side of the clips These slotsare adapted to receive headedsc'rew's 60 projecting from the laterally turned porthe amount of illumination'j tions"52"".- It is apparent "thatthisarrangement permits the lens to be readlly moved 'by lifting upwardly on the same.

With the end in view of illuminating the work support in rear of the lens 56, an 11-.

luminating device may be provided. This illuminating device comprises, in thisflinstan'ce, an llluminating lamp 61 which is so enclosed that the eyes of the user are pro-' tectetl from the direct rays of the illuminating device, while at the same time proper illumination of the work is-cobtained. This result is .secured, in the presentembodiment,

by providing two brackets 62, each having an arm secured at 63 to the rear faceof a laterally turned portion 52 and an arm 52 projected upwardly in front of the lens The two brackets are connected by a lamp housing which preferably is formed,

from a single piece of metal rolled to form an open ended member67 substantially of a tube like structure, one edge of'the sheet of metal being secured at 64 to the forward arm of the bracket 62 and the rear edge er the metal being secured at 65 to the rear (arm of they bracket 62. Between itssecured portions 65 the metal is cut away at-66 to" provide an opening which will permit the 'raysfrom the lamp 61 to pass 'rearwardly on the work support'2. The lamp 61 is opening 66 in the'lamp casing. This shutter,

in this instance, is in the form of a longituend which fits 'r'otatab ly in the endof the lamp casing 67 about the lamp bulb 61.- It is l apparent that the turnin of this tube so that the longitudinal slot 72 thereof isopposite the opening 66, rays from the lamp will pass to the work; whereas the larger'the amount "ofthe wall of the tubefwhi 'ch is interposed reduce between the lamp and the slot 66 will vsupported in the casing by pro'vidingthe I socket 68' of'such lamp with a sleeve 69 of dinally slotted tube 7 0 having a cap 71 at one i 4 In order to-reduceeye strain'o't' the user 1 of the machine, the red rays from the. lamp 61 may be taken out or eliminated and to this end, an open ended blue glass tube 73 is provided which fits tightly within the shutter. tube 70 about the lamp 61, so that reading surface may beeliminated, and to this end an elongatedlens or bar 74 of white Crookesglass may be arranged in the lineo'f vision, preferably a; front of the mig tymain frame 1, while at the same time per-- mitting the work support to adjust vertically with reference to the line guide. This result, in this embodiment, is secured by supporting the. line guide on the carriage which supports the lens 56, ray filter 74L and lamp 61.

The line guide is indicated at 76 and has slots 77 near opposite ends in which headed pivots 78 operate, these pivots being carried by the free ends of arms 7 9 which are pivoted at 80 to the brackets 62, the pivots being extended to provide finger pieces." This arrangement permits the line guide to be raised and lowered and also to assume a-slight angle to the horizontal in order that it may corres-pondto the line of work when such line is not positioned horizontally on the work support, this movement of the line guide being eii'ected through the headed pivots 78. The line guide preferably has a widthsufiicient: to cover the ray filter 74 between the upper edge of the line guide and the lamp casing for any adjusted position of such line guide, thereby preventing any of the work below the upper edge of the line guide'being visible. v

In operation, the work holder 2 is moved to its lowermost position and the detent 39 is caused to engage with the keeper 41 to hold the ironers 22 and 23.0ut of cooperation. The guides formed by the parts 42, 4L3 and 44 are adjusted to correspond to the width of the work and the work is introduced below the lower ends ofthe guides between the ironers and the work support 2, the clamping bar 17 being employed for engaging the upper portion of the work. After the work is properly positioned, a depression of the lever t will release theironers and permit them to be held with yielding pressure aga'nst the work through the spring 38. Each depression of the lever effects through the lifting clutch 11- an upward movement of the work support 2, the position of the work support being maintained through the holding clutch 12. The line guide76 is, of course, adjustedto correspond with the angle of the line which it is desired to read. The line guide may be so positioned with reference to the lenses that a number of lines may be viewed simultaneously through the magnifying lens. The magnifying lens is adjustable toward and from the work so that the desired magnificaa y be ned The W91 i? is illurni nated bythe lamp and the amount or quantity of this illumination is controlled through the shutter 70. The blue glass which surrounds the lamp takes out the red reference to the lenses and the line guide and are automatically, controlled through the mechanism which effects relative movement between the llne gulde and the work support.

to secure byLetters Patent is:

1.. In a copy holder, the combination with a work support and a line guide, one of.

which is movable vertically relatively to the other; of an ironing device for flattening the work directly abovethe line guide, and an elongated lens for viewing the work flattened by the ironing device.

' 2. In a copy holder, the combination with a line guide and a, work support movable vertically relatively to the line guide, oi an ironing device havinga fined relation to the line guide during the movement of the work support for flattening the work above said line guide. a 3. In a copy holder, the combination with a line guide and a work sup-port movable vertically relatively to the line guide, of an ironing device having a fixed relation to the line guideduring the movement of the work J support for flattenlng the work above said line guide, and an elongated lens for viewing the work flattened by the ironing device and having a fixed relation to the line guide.

4c. In a copy holder, the combination with a line guide and a work support movable vertically relatively to the line guide, of an ironing device having a fixed relation to the line guide during the movement of the work support forflattening the work above said line guide, and means for supporting the ironing device so that it may be moved out of cooperation with the work on the work support to permit the movement of the work support to its lowered position.

5. In a copy holder, thecombination with awork support, a line guide, and mechanism for effecting vertical movement of one of said parts relatively to the other to cause the line guide to traverse the work support from the upper to the lower portion of said support, said mechanism being controllable to cause the line guide to cooperate with the upper portion of the work support after any raversing; action. for the narrate W] hat I claim as my invention and desire another traversing action, of an ironing devicettor flattening the work above the line guide, and meansitor moving the ironing de vice automatically out of cooperation with the work support when the mechanism is op erated to effect cooperation between the line guide and upper portion of the work support for a new traversing action.

6. In a copy holder, the combination with a line guide, a work support movable verti cally relatively to the line guide, and mechanism for eilecting the vertical movement of the work support controllable to permit the lowering of the work support; of an ironing device for cooperating with the work on the work support above the line guide, and means permitting said ironing device to be moved out of cooperation with the work-sup port when said mechanism is operated to permit the lowering of the work support.

7, In a cop-y holder,jthe combination with a line guide, a work support movable vertically with reference to the, line guide, and mechanism for effecting the vertical movement of the line guide having an operating member movable in one cire'ction to elevate the work support and in the other direction to effect the lowering of the work support; of an ironing device for cooperation with the work support, and means for moving said ironing device out of such cooperation with the work support when the operating member is moved to effect the lowering ot the worksupport and into such cooperation when the operating member is next moved to effect the elevation of said work support.

8. In a copy'holder, the combination with a line guide, a vertically movable work support, mechanism for effecting the vertical movement of the work support relatively to the-line guide; of an ironing devlce, and

means controlled by saidmechanism to move sald ironing device out of cooperation with the work support when the mechanism is operated to lower the work support and to move "said ironing device into cooperation with the work supportwhen the mechanism is next operated to elevate the work" support.

9. In a copy holder, the combination with a line guide *and'a work support movable relatively to-the line guide; oi an ironing device extending transversely of the work support adjacent to the line guide. e

10. In a copy holder, the combination with a line guide and awork support movable vertically relatively to said line guide; of an ironing device comprising a bar extending transversely of the work support adjacent to the line guide and movable toward and from the plane of operation of the work support.

11. In a copy holder, the combination with a line guide and a work support movable vertically with reference to the line guide; ofan ironing device comprising a bar extending transversely of the work supmoved toward and fr om'theplane ofoper'a-f tion of the work support. 12. In a copy holder, the

mechanism {or eiiecjting the vertical movecombination with" a line guide, a work supportmovab'le verf tically with'reference to'the line guide, and

ment oi the work support with reterencetof" the line guide; of an ironingclevi'ce comprising a bar extending'transversely'of the work support adjacent to the line guide and having arms at opposite ends pivotally mounted, and a connection between one of said arms and saidmechamsm for effecting the movement of the ironing bar away from the plane of operation of the work support j upon the lowering of thejwo'rk supportg '13. In a copy holder, the combination with i a line guide and a' work supportmovable' vertically with reference to the line guide? 01"" an ironing'device for cooperating with the work support, mounted in proximity to .5 i

the line guide and'movable toward and from the plane of operation or thework support, a detent for holding theironing devlce ou't of cooperation with the work support, and

mechanism for effecting vertical movement of the'work support re'lati'vely'to the linfill guide, said mechanism 'being controllable to eiiect the lowering ofthe' work support and having connection with the ironing device to move the latter out of cooperationwith the work support to a position where it will be held by the detent, said, mechanism hav-,

ing provision which upon the next operation f port, releases the ironing device from the" of the mechanism to elevate the worksup detent and effects cooperation'between thejj} ironing device and the work support. v

14:. A copy holdercompr slng a line gulde,

a work support movable verticallyfwith reference to said line guide, an operating rod clutching connection between said operating rod and the work support v fl 'ecting the movement ot'thework support upwardly when theoperating rod is moving in 0 6 direction from a normal posit-ion and releasmg sald 'worksupport when the operating rod is moved in the other direction from its normal posltlon, an lroning devlce for;

cooperation with the work support movable;

toward andfrom the plane ofjoperation of such work support, and connection between said operating rod and said ironingldevice for moving the ironing dev cel'away'trom' the work support when the operating rod is moved to release the work support and moving said ironingdevice toward the work support when the operatingrod is next moved to elevate the work support.

15. A copy holder comprising a line guide,

a work supportmovable vertically with ref erence to said line guide, an operating.rod,

clutch connection between said "operating rod and the work support for effecting the movement of the work support upwardly when the operating rod is moving in one direction from a normal position and releasing said work support when the operating rod is moved in the other direction from its normal position, an ironing device for cooperation with the work support movable toward and from the plane of operation of such work support, connection between said operating rod and said ironing device for moving the ironing device away from the work support when the operating rod is moved to release the work support and moving said ironing device toward the work support when the operating rod is next moved to elevate the work support, and a detentfor retaining said operating rod away from normal position after it has been moved to release the work support.

16. A copy holder comprising a line guide, a work support movable vertically with reference to said line guide, an operating rod, clutching connectionbetween said operating rod and the work support effecting the movement of the work support upwardly when the operatingrod is moving in one direction from a normal position and releasing said work support when the operating rod is moved in the other direction from its normal position, an ironing device for cooperation with the work support movable toward and from the plane of operation of such work support, connection between said operating rod andsaid ironing device for moving the ironing device away from the work support when the operating rod is moved to release the work support and moving said ironin device toward the work support when Fhe operating rod is next moved to elevate the work support, a lever to which said operating rod is pivotally connected, a detent carried by said lever, and

.a keeper for the detent arranged to co operate with .the detent when said operating rod is moved by the lever away from its normal position to effect the lowering of the work support. a

17. The combination with a field to be viewed, of racks suitably supported, a frame adjustable toward'and from the field to be viewed, a lens carried by the last mentioned frame, and a shaft mounted to turn on said frame and having pinions thereon meshing with the racks.

18. A copy holder comprising a frame, a work support vertically movable on the frame, arms projecting from the frame in front of the work support,'racks on said arms, a frame guided on said arms, shaft provided with pinions meshing with said racks, and a lens supported by said second mentioned frame. A

19. The combination with a field to be viewed, arms projecting from opposite sides of the field, a frame guided on said arms, a shaft carried by the frame and having connection with the arms whereby turning of the shaft will move the frame toward and from the work support, and a lens carried by the frame. I Y

20. A copy holder comprising a frame, a work support vertically movable on the frame, arms carried by said frame and projecting on opposite sides of the Work support, a second frame guided on said arms, a shaft carried by the second mentioned frame and having connection with the arms whereby turning of the shaft will move the second mentioned fr me toward and from the work support, a lens carried by the sec-. ond'mentioned frame, and a light filter supported on the framean d movable into and out of cooperation with the lens.

21. A copy holder comprising a frame, a work support vertically movable on the frame, arms projected. from the frame on opposite sides of the work support, a frame movable on said arms toward and from the 1 work support and provided with a lamp housing and a line guide, a lens carried by the second mentioned frame, and a shaft mounted to turn on the "second mentioned frame and having connection with the arms whereby the turning of the shaft moves the second mentioned frame toward and from the work support. A

22. A copy holder comprising a. frame,. work support vertically movable on the frame, arms projected from the frame on opposite sides of the work support, a second frame movable on said arms toward and from the work support, a lens carried by the second mentioned frame, a shaft on the second mentioned frame and having connection with the arms whereby the turning of the shaft moves the second mentioned frame toward and from the wor: support on the able on said frame, a line guide, and supx ports at opposite cndsof the line guidebar relatively adjustable to permit the line guide to assume different angular positions with reference to the line of adjustment of the work support. r

24. A. copy holder comprising a. stationary frame, a work support vertically adjustable on said frame, a line guide. and supports at opposite ends of the line guide bar relatively adjustable to permit the line guide to assume different an ular positions with reference to the line of adjustment of the work support. each of said supports comprising a swinging arm adjustably connected to theline guide.

25. A copy holder comprising a stationary frame, a work support movable on said I frame, a line guide provided with slots near opposite ends, and two swinging arms, each having pins operating in said slots, said arms being supported by the stationary frame. I

26. A copy holder comprising a stationary frame, a work support movable on the stationary frame, a line guide supported by said stationary frame, and a pair of ironing devices arranged one below and the other above said line guide to cooperate with work on the'work support.

27. A copyholder comprising a stationary frame, a work support movable on the stationary frame, a line guide supported by said stationary frame, a pair of ironing devices arranged one below and the other above said line'guide to cooperate with work on the work support, and means for effect ing a simultaneous movement of the ironing devices toward and from the work support.

28. A copy holder comprising a stationary frame, a work support vertically adjustable on said frame, arms projected from said support on opposite sides of the work support, a pair of intermeshing gears pivoted to each of said arms, a pair of ironing devices each connected to one of the gears of each pair, and means for operating said gears to effect the movement of the ironing devices simultaneously toward and from the work support.

29. A copy holder comprising a stationary frame, a work support adjustable on said frame, an elongated lens supported by said frame, and ironing devices cooperating with the work support at opposite sides of the field of the lens. I

30. A copy holder comprising a stationary frame, a work support vertically adjustable on the stationary frame, two ironing devices carried by the stationaryframe in parallel relation, and work guides extending between said ironing devices.

31. A copy holder comprising a stationary frame, a work support vertically adjustable on the stationary frame, two ironing devices carried by the stationary frame in parallel relation, and work guides extending between said ironing devices and having their lower ends deflected away from the work support 1 to direct the work between the guides and the work support.

32. A copy holder comprising a stationary frame, a work support vertically movable on the stationary frame, two ironing devices arranged inparallel relation and carried by the stationary frame for flattening the work on the work support, and work guides extending between the ironing devices and relatively adjustable toward and from each other for cooperating with work of difierent widths.

A copy holder comprising a stationary frame, a. work support vertically movable on the stationary frame, two ironing devices arranged inparallel relation and cooperating with work on the work support, two guides mounted on said ironing devicesv and adjustable toward and from each other, the lower ends of said guides: projecting below the lowermost ironingdevices and be ing'del'lected away from the 'work support.

34. A copy holder comprisinga stationary frame, a work support vertically adjustable on the stationary fran i-e, two ironing bar'sextending transversely of the work support, one above the other, means for effecting. the

simultaneous,movementof the ironing bars" toward or from; the work support, two guides mounted upon the ironing bars and adjustable toward and from each other on said bars, each guide having between. thebars, a bowed portion for cooperating with the work. I a

35. A copy holder comprising a stationary frame, a work support vertically movable on the stationary frame. two ironing bars extending transversely of the work sup-,

port, one abovethe other, and work guides lamp arranged in said housing, and a rotary tubular shutter surrounding the lamp within the housing and adapted to control the amount of light issuing from said lamp housing.

38. In combination with a field to be viewed, a lens: for viewing said. field, an elongated open ended lamp housing. for illuminating said field in rear ofthe lens,

an elongated. lamp fitting inone end of the housing, a tubular shutter having anelongated slot fitted in the opposite end of the housing about the lamp and rotatable to control the amount of light issuing from the-housing. g

39. A copy holder comprising a stationary frame, a work support vertically movable on the stationary frame, a lamp housing supported by the frame, an elongated lamp arranged in said housing and a light filter tube arranged aboutsaid lamp.

40. A copy holder comprising a stationary frame, a work support vertically adjustable on said stationary frame, a. lens supported by said stationary frame, and a line guide also supported by said stationary frame and adjustable s ngularly with reference to the lens.

41. In combination with a field to be viewed, a lens through which a View of said field may be obtained, a lamp housing opening to throw rays between the lens and the field, a lamp arranged in said housing, and means controlling the amount of rays issuingfrom said housing from said lamp.

4:2. In combination with a field to be viewed, lens for obtaining a View of the field, a lamp housing having an opening for throwing rays between the lens and the field, a lamp in said housing, and a light filter associated withsaid lamp for removing certain of the rays'from the light projected by said lens.

43. In combination with a field to be viewed, a lens for viewing said field, a lamp housing opening to throw rays between the lens and the field, a. lamp arranged in said housing, a. rotary shutter surrounding said lamp and adapted to control the amount of rays of light issuing from the housing.

A. In combination with a field to be viewed, a lens associated with the field, a.

lamp housing arranged to throw light rays between the lens and the field, a lamp in said housing, a blue glass associated with thelamp to remove the red rays from the light thrown by said, lamp, and a light filter associated with said lens so that the ultra violet rays from the reading surface will not pass to the eyes of the user of the machine.

ROBERT lVI. SEARLE.

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