US1251076A - Photogenic copying apparatus. - Google Patents

Description

J. L. M'AUCH.'

PHOTOGENIC COPYING APPARATUS.

APPLICATION FILED SEPT. 22. 1915.

Patented Dec. 25, 1917.

3 SHEETS-SHEET 1 J. L. mucm PHOTOGENIC COPY!NG APPARATUS.

uwucmou ru.sn SEPT. 22. uns.

1251,076. Patented Beo. 251917 3 SHEETS-SHEET 2.

J. L. MAUCH.

PHOTOGENIC COPYING APPARATUS.

urucAnon mm SEPT. 22. was.

Patenfxad Dec. 25, 1917.

3 SHEETS-SHEET 3.

JOHN I4. HAUCH, 015" LOS ANGELES, CALIEOENI.

IHQTQGENIC COPYING A1PAEATUS.

Specification of Letters Patent.

Application filecl September 22, 1915. Serial Io. 52,053.

T0 all whom z' may conce7n:

Be it known (hat I, JOHN L. MIAUCH, a citizcn of ihe Unibecl States, residing at Los Angeles, in the count.y of Los Angeles and Stute 0'l California, have invented or disc0vered rertain new nnd useful Improvements in Photogenic Copying A paratus, 0f which the foilow ing is a speci1cation, ref erence being had therein t0 the accompanying' clrnwings.

"ll1is invention relates to apparatus for pr0rlucing plmtogenic c0pies 0f surfaoes, such 215 writing, pri nt-ing, designs, pictures etc. in accorrlance. with the method which consists in interposing 21 transparent 01 translucent lightsensitive medium between the snrface E0 be copied, and substantiully in contact therewith, ancl u source oft light, the rays from Whicla p%1ss .tlzrouglr Said sensitized mediurn to sai l surface, said rays being absorhml by cl1e darker portions 0f sald surface and being reflected frorn the lighter portions tlxere'of into th e sensitized medium again, whereby said medium Will be aflecteol t0 agreater degree at points adjacent t-he lighter portions of said surface lmn atpoints adjaceno the darker portions thereof. More particularly tl1e, invention relates t0 photogenic apparatus of tl1e general character shown and describerl in Leters Patent of the Unlted States N0. 1,097120 granted. May 19, 1914, to Henry H. Curtiss.

'lhe invention has f0r its generul object 130 improve the construction and arrangement ol apparatus of this character' and render the Same more c0nvenient, reliable, accurate an'cl eflicient in its operation ancl results.

The foregoing and other objects of tl1e invention, together with means whereby fixe Same may be carried into efl"et Will besi; be understood from the follow' .criptiun 0f one f0rm er emboclimen .;ne0f illustrated in the accompanying drawing. lt will be. understood, however. that tha pmr ticular constructlon desoribed 21ml shown has been chosen 1"0r illustrative purposes merely.- und that tl1e nvention. as clefined by th cluizns hereunto appencled, mit}! be otherwise prnciisenl withoul departing frnm the spirit :zml sc0pe therwn.

In saicl drmvingst--- l'ignre l is a snbstnntiully centrnl trans- YEIS; vercal secton of the machine,

Fig. 2 is an eml eleval.ion partly brnlcen away, looking frnm the left in Fig. 3.

Fig. 3 is a vertical lsngitudlnul section.

Fig. sl is an und elevation of the mucl1inc as viewed frr m the right in Fig. 8.

Fig. 5 is a sectional view of tl1e c'ap f0r closing the open mouth 0f. the casing when the appa'rzfius is n0i; in use.

Fig. 6 is a partia'i front elevation. gxmlzly broken away.

Referring o Fig. 1 lx comprises a n=; having an open lower end 01 m 11, closecl, when the device is nnt in use, by a cap 19 (Fig. 5). 12

.valy ol tl1e clevice dan0ies a glass 01 ot her transparent 0r translucent roller journaled wit-l1in the mouth 11 (see also Fig. 3), the lowermost portion 0f the surface of said roller being npproximately flush with, or projecting slightly be yond the eclges 0f said mouth. 13 und M cle note spools or rollers rotatnbly mounted within the casing; und upon whch is wound a sensitized srip 01' film 15. The film 15 is witl1drawn from the sp00l 13, passes zxb0ut the roller 1:2, und is wound up on the spool 14. Suitable lension cle.'ic'es hereinafter clescribed. are pyovi lcd wlrereby unwinclingof the film frnm the spool 13. except us withdra.\\*n by tl1e roller 12, is yieldingly prevented, thereby maintaining 21 suituble tensi0n between sai .l sp00l und r0ller, und Whereby said film. after leaving said rollar, isimmedintely wmmd up OH tl1e spo0l. 14 under a continuous tension. Within the lnwer part of t-he main casing is a lamp casing, designated 215 a Wh0le by tl1e numerul 16, and hfl.V

ing an open l0wer end 0r mouth adjacent the roller 12. Supported Within said lamp cusing 16 is 21 suitnble nurnber (one 01 more) 0;r electric lamps 17 suppliacl witn current, through connections hereinafter rlescribeml, from a battery er other source 0%E elsetric energy 18.

In use (1116 nppamtus iss placerl Wi'lh llS opcn m0uth 11 udjacent tl1e surfuce 20 250 b-e copiecl 01' photograplxed and with u pur; .m of'the film 15 interpo:-:erl bet\veen saifi sur ia0e 2U.(l Lhe rollr:r und. in contact Willi tlm formen As Um (levice is m( V{zal over fne surfaca 20 tl1ev filrn. grippe l l ez.ween sni::l surfa0e and tl1e roller 12. is grudunlly Wilhdrawn from lue spoul 13 und re-revlerl 11=, m tl1e spool 14:. As sucr9sslve porfihs nf .s-zai(l film are thus presented to successive 'portions of the surface 20, light from the lamp 01 lamps 17 is transn1itted through the roller 12 and film 15 to the surface 20, whence it is reflected to a greater 01 less extent back into said film, thereby causing said film bo receive a photogenic impression of the portion of the surface traversed in accordance With the methocl above referred. to.

The general organization and operation of the apparatus having thus been indicated.

the construction of the various parts a1qd 'mechanisrns Will now be describedin dta1l.

The main casing is composed of end members 21-and 22 which are suitably grooved to receiw the end edge's of longitudmal members 23, 24 ancl 25, the latter being firmly clamped in position between the end members by means of bolts 26. The longitudinal member 24 forms ehe top and front of the casing. The upper und lower edges of the member 25 are received in suitable grooves 01 rabbets in the member 24, between which the corresponding pox:tion of said. member 24 is spaced from the member 25 t0 form a, chamber or housing 27 f01 0ertain mechanism hereinafter described. The lower portion of the, member 24 is spaced from the member 23, which forms the lower part 0f the back 0f ehe Casing, the lower endfs of said members 23 and'24 being separated to provicle the open mouth 11. By this cou- .rear edge of the top portion of the member 24. .Said cover 28 is normally held in the closed position shown in Fig. 1 by means of a mmable catch 30 which, when released, permits said cover to be raised, thereby affording access to the interior of the casing for changing the film or sensitized strip, and for other purposes.

The casing is preferably provided at suitable points with observation windows 31 fitted with glass or other transparent medium of a suitable non-actinic color and pr0vided With opaque covers 32', said Windows being for the purpose of pennitting observation of the strip or film. One of the windows 31 is preferably located at the top of the casing in such a position as t0 permit observation of the film on the spool 13, thereby determining the am0unt of unexposed film remaining on said spool. Another window is preferably provided in the lower part of the member 24 to permii: obsewation of the unexposed film between the spool 13 and the roller 12, o1 point of application bo the surface 20.

The end members 21 and 22 are preferably provided with suitably forrned projections and recesses 76, 7 7, 78 and 79 afiording the operator a firm hold When pressing the machine upon and moving the same over the surface 20.

The transparent roller 12 is fitted at its ends with caps 33 and'34 (see Fig. 3) provided With studs rotatably mounted in the lower ends of th end members 21 and 22,

respectively, whereby said roller is j ournaled l in said members ab the 0 n mouth 11 of ehe casing, as above descr1bed. By the use of th e roller .12 concentrated pressure is brought 'to' bear upon the sensitized strip at the poin't where the light is concentrated,

which preventathese parts from slipping with reference t0 one another When the apparaqus is moved over the surface. At the same time the roller 12 provides an antifriction support for the sensitized strip with reference to the casing, am]. a rolling contact be tween the strip and surface, thereby further reducing the tendency of said strip to move with respectto the surface. It will of course be understood that, in order to secure a sharp anal accurate opy it is necessary that s'aid strip be held against slipping With respect to said surface ab the time 0f ex osure.

in order to obtain an evenly perfect copy it is necessary that the apparatus be moVed over the surface 20 at a velocity not greater than a certain maximum, and that this ve- 1ocity be uniform. For th purpose of thus controllin the speed of. travel 0f the device the ollowing mechanism is provided. The cap 34 (see Fig. 3) at one end of the roller 12 has secured thereto 01 forrned thereon a spiral gear 35 Which meshes with a spiral gear 36 secured to an inclined shaft 37 journaled in a suitable bearing 38 (see also Fig. -4) formed on o1 secured to the end member 22. Secured the upper end of the shaft 37 is a spiral gear 39 which meshes with a spiral gear 40 on a shaft 41 journaledin the encl mernber 22 and in a bracket 42 (see Fig. l) projecting f1om the casing member 25 within fhe housing 27. Secured t0 the shaft 41 is a second spiral gear 43 which 'meshes With a spiral gear 44 on the hub 46 of a fiy wheel 45 (See also Fig. 6), said hub and fly wheel being rigid] y connected for rotation in unison. The hub 46 is rotatably mounted n a rod or axle 47 rigidly secured ab its ends t0 the members 24 and 25 forming the awa1ls 0f the h0using 27.

By means of the gearing and connections lastdescribed, rotation of the fly wheel 45 is communicated to the roller 12, said fly wheel being of a suitable Weight to provide the necessary momentum or inertia eifec tively 130 control the velocity 0f rotation 0f said roller and consequently the speed of trave1 of the machine over the surface 20. In order to sei; the fly whee1 and roller 12 in motion at a predetermined speed in accordance with the reqi1irements the following mechanisrn is provided, reference being had particularly to Figs. 1 and 6.

48 denotes a shaft journaled at its inner end in a, boss 49 on the casing member 25, said shaft having fixed to its outer end an armbr lever 50 located outside the casing and. having a hub 51 journaled in a suitable opening in the casing member 24. Fast 0n the shaft 48 is an arm 52 to which is se cured one end of a spring 53 hzwing its opposite end secured, as .at 54, to the casing, said spring and arm acting normally t-o hold the shaft 48 and parts thereon in the position shown in Fig. 6. 55 denotes a gear segment fast on the sh5ft 48 and adapted 130 mesh with a pinion. 56 fast onthe hub 46 of the fly whee1.

Movement of the arm or lever 50 from the position shown in Fig. 6 in the direction 01: the arrow on said figure causes the gear segment 55, which is normally out of ei1gagement with th e pinion 56, t-o engage and turn the same, and also causes 1:he spring 53 10 be placed under tension. When the arm 50 is released and returns t0 normal position under the, influence 0f the spring 53 rotation is imparted t0 the fly whee1' 45 through the pinion 56 und segment 55, the velocity imparted to said wheel depending upon the distance through which the arm 50 was initially moved. As the arm 50 returns to normal position the segment 55 moves out of. mesh with the pinion 56, permitting the fly wheel to continue its rotation, which rotati0nis communicated to Ehe roller 12 as above explained.

As a convenient rneans for measuring the distance through which the arm 50 is moved, and the consequent velocity imparted to the fly wheel, there is provided a. Segment-a1 scale 57 over which said arm 1noves, said scale being secured to the exterior 0f the front wall-of the casing and having upwardly turned ends 58 to ser.ve as stops for the arm.

59 denotes a brake shoe carried by a 1eaf spring 60 secured t0 ehe inside 0f the bottom Wall of the housing 27 and provided with a bubton 61 proje0ting through said wall, whereby said bmke shoe may be moved into engagement With the fly wheel 45 to stop the rotati0n thereof at Will.

In order t0 insure the proper angular positioning of the fiy wheel 130 permit engagement Qf the teeth of the segment 55 With the teeth 0f the pinion 56, When the arm 50 is moved to cause such engagement, the followirigmechanism is provided. 62 denotes a positioning lever pivoted ab 63 to the in ner side of the front wal1 of the housing 27, the pivotal mounting of said lever being 0f such character as yieldingly to resist turning of said lever, so as to cause the s'ame to remain in any position into which it is turned, aS by the provision of a spring washer 64. The lever 62 is provided with an operating stud 65 which projects through a short slot in the casing Wall and by which 'said lever may be turned 0n its pivot. A1; its free end the 1ever 62 is provided with a spring finger 66 adapted to engage and turn the pinion 56, When said lever is moved upwardly, and also with a stop shoulder 67 adapted to engage the. 1ower edge of the pinion 56 to limit the upward movement of said lever. The arrangement is such that When the 1ever 62 is moved uPwardly t0 the limit of its movement, determlned by the en-"' gagement of the shoulder 67 With the pinion 56, the spring finger 66 Will have turned said pinion into a proper angular position for engagement by the segment 55. The operating arm 50is provided with a cam head 68 adapted, When said 1ever is moved, '00 engage the stud 65 and move the lever 62 into its normal positi0n as shown in Fig. 6.

Prior to starting the machine the operator, by manipulation of the stud 65, moves the 1ever 62 upwardly, thereby positioning the pinion 56 as above explained, the frictional character of the pivot 63 causing said lever to remain in its upper position and holding said pinion in the pdsition in which it has been turned. As the arm 50 is moved in the direction of the arrow on Fig. 6, and after the segment 55 has been br'o1ight into ful1 engagement with the pinion 56, the cam is composed 01 insulating material and is' formed ab its lower edges with groov ed flanges 74 in which a lamp supporting platze 71, also 0f insulating material, is slidably mounted. The fianges 7 1 are in turn received within channels 75 formed ab the upper edges :i' he side sections E0, whereby said top and side sections are connected. 72 denotes lamp contacts carried by the top section 69 cf the 1amp casing, and 73 1amp Sockets carried by the 1amp supporting plate 71. As herein shown four 1amps, lamp sockets, and ]amp contacts -are provided. The soekets 73 are all electricalb; connected with one another by a conductor 80. Thetwo con'li'acts 72 shown at the left in Fig. 3 are electrically connected 01 grounded t0 the end member 21 01 the casing by a conductor 81. The tWo contacts 72 at the right in Fig. 3 are electricz'zlly connected by a conductor 82 to a terminal 83 which passes through an jnsulating bushing 81 in the end mexnber 22 and is provided outside the casing with a binding post 01 equivalent connector 85 (see Fig. 4) T0 the binding post 01 connector 85 is coinected one of the wires 01 terminals 01= the battery 18 the other wire 0r terminal of which is connected to a similar binding post 01 connector86, also mounted in the insulating bushing 84 ancl provided with a spring contact member 87. 88 denotes a circuit closer cornprising a in or plunger s1idably mounted in a boss 'ormed on the end member 22 and adapted, when A forced inwardly 0r toward the right in Fig. 4, to engage the contact member 87, thereby completing the circuia by grounding said contact member to ha casing and C011- sequently electrically connecting the same through the casing with the conductor 81. 89 denotes a leaf spring normally holding the plunger 88 in circuit breaking position. The plunger 88 is pr0videc1 with a headl 90 preferablylocated adjacent one of the recesses 78, whereby said plunger may c0nveniently be held in circuit closing osition against the*tension of the spring 89 by the band of the operator grasping che machine when in use.

By providing a series 0f lamps 17 suitab1y spaced longitudinally 011 the lamp oasing and consequently of ehe mouth 01" exposure opening 11, a proper uniform dis- Tribution 0f ]ight is insured. Also, by thus disposing the light giving filameni; in a series 0f short units, probability 0f filamen breakage, due t0 mechanical shocks 150 the apparatus, rnay be reduced 130 a minimum.

The side members o1 sections 70 of the 1amp casing 16 extend downwardly and partly around the transparent toller 12, thereby preventing light from within said 1amp casing f10m entering that portion 0f 60 the 1nain casing containing the exposed and unexposed film. Intermediate their upper und lower edges the side members 01' seetions 70 am formed with grooves or chan ne1s 91 and 92 for supporting respectively lighfi; lter 93 und. a 1ens 9%, ahe ens 01 aaamaa which lter and lens are supporte ably located grooves 01 recasses in en .membrs 21 l The light ber 91 is composed 0f g'iass or other transparent material 01 any suitab1e C0101. in accorance wih the requiremens, and is I"or tne purpose 01" abtaining greater contrast when cepying inscriptions, designs 01 the like of various colors an various1y co'lored surfaces. Also greater nontrast can be obtained when copying black and white designs with Certain kinds 0f sensit ized strip by using a light filter of the proper color.

The lens 94 is of cylindrical forma anal cooperates wit.h the transparent roher 12 in refracti'ng the projected light so as to noncentrate the 1ight rays and cause them w fal1 upon the film 15 and surface 20 in the form 0f a relatively narrow strip 0f 1igh'b 01 great brilliancy located at substantially the line of engagement 0f the wich tha sur face.

The end member 21 is proviclie with an opening 95 throngh which the 1aznp supporting plate 71 may be renaove, by s1iding the same in the grooves in the fianges 7 1 for the purpose 0f changing 01 replacing the lamps 17. Said end member 21 is furthe1* provided With a s10o 0r opening 96 through which che light lter 98 1nay be removed by sliding the same in its channa-ls Q1 guida ways 91, whenever it may be dc-sired *a0 change filters. The openings anci 90 am closed by a cover 97 having ajacent its upper edge a hooked 1ug 150 engage i7he upper edge 0f the opening 95, said eover neing retained in position by means @15 a pimte Catch 98 whieh engages a groove stuf: projecting from i;he en membar 21 tfu*ough a suitably locaied opaning in c0ver.

A1: the edges 01 th mmih 11 is a 1ight sea1 designated as a Wh0ia by the numara! 100. Said 1ight saal comprises a ved attaching member o1 c1ip 101 ca! in shape 130 the edges 03 the moutn 11 an composed 0f res1hent matenai, sa1* attaching member having a covering 102 013 p1ush or other soft, flexible, elastic OI' yieldina material adapteci t0 excluc"ie iight witham injury to ehe film 15 or surface 20, with both of which it comes in contact. The resilian: c1ip 01 att-aching member 101 detachab1v gages the edges 0f Ehe Walls 0f tha 11, permit-ting the 1ight sea3. r from the machine f0r itha purposa 01 faci1b tating the insertion. 01" the fiim an sans"' strip and also Eo? the purpose 053 rena the covering 102 if' ;ne 1ativar bacomas WG111 01 'injured.

The 1ight seal c0mprisas an per tion a, an inner pazriion Z), an, m'a-er partion c. The pmrion a prevants ane0us 1ight from striking; -';hat poran 0'E' tna 15 11e1c1 in engagemen; with "uha surface during the gop ving operation. The Portion b prevents light from entering vlight from enwring the machine when not in use and also, by reasn of the yielding character of the covering l02',gassistS in retaining said cap in place, therb'y. preventing imury to the film from any cause.

The spools 01 rollers 13 al'1d 14 comprise wenden or ot-her suitable cores diametrically slotted to receive the ends of the film 15, whereby said film is attachedto said cores, and provided adjacent their ends with flanges 103. As heretofore statedfthe unexposed film is stored on the sp0ol 13 from which Said film passes to the roller 12, the exposed portion being subsequently wound upon the roller 14. Fo'r the purpose of 0btaining 'sharp definitioh in the c opy the film 15 is preferably so disposed that, in passing about the roher 12, the sensiti2ed S11Iface thereof will be downward or in engagement with the surfaoe 20. Intermediate the roller 12 and spools 13 and 14 the film igguided at suitable points by certain 0f the bolts 26- and by guiding ribs 01 flanges 104 seeured to 01' formed' iritegral with the end members 21 und 22, said ribs er fianges facilitating the insertion of the film. The spools or rollers 13 and 14 are similar and interchangeable as will be familiar to those skil1ed in the art.

The spoo1 13 is rotatably, mounted on. pins or centers 100 which project through openings in the end pieces 21 and 22 and engage suitable axially disposed recesses in. the ends of sa.id spooi. Said ping axe normally held in engagement with the spool v by means of flat springs 107 und are pro vided with suitable 'handles whereby they may be withdrawn forthe purpose of releasing the spool. The spool 14 is rotatably supported at one end bv a pin or center 108 .similar to the centers 106 und is e11gaged at the opposite end by a dog 109, said spool. and dog being connected for rotation in unison, as by forming the end of said spool with a diametric groove 2idapted to receive a flange or rib 110 on said dog. The dog 109 is rotatably and slidably mounted in a suitabljr disposed opening in the end member 21 and is fast upon a spindle 111 slidab1y and rotatably mounted in the wa1l 01 a housing 112 secured to the end member 21, as by means of screws 113. 114 denotes a spring interposed between the dog 109 und the Wall of the housing 112 and normally holding said dbg in operative engagement with the end of the spool 14. The spindle 111 is provided with a head 115 outside the housing 112 Whereby the dog 109 may be withdrawn against the tension 0f the spring 114 in order to re1ease ehe spoo1 14.

a spring For the purpose of facilitating the'insen I tion of the spools 13 und 14 tghe end memfaces with projeeting ledges er rib3 116 30 formed and disposedas t0" act as guides andst0ps fqr positioning said spools with refer-; er1ce t0 the centers 106 and 108 und dog 109."

Withii1 the housing 112 is a spring motor .which, for the purposes of thepresent inve'ntion, may be of any usua1 or welL known type capable o'f applying a 'continuous turn ing force t0 a gear 127 which meshes with a pin'ion 128 mbunted on the dog 109101 rotation therewith, thereby tra;nsm1tting the force of Iihe spring'motor to the spool 14'in the form of a continuous torsional tension tending to Wind up the film 15 an said spool. 122 denotes a winding post for the m0tor sprin seid Winding ost being pro'vided outsi e the motor housin with an operatiilg key or -knob 123. Pre erably the connections are such as t0 permit winding of the motor spring withoutturning t he gear 127,

but as such connections are common in tending to the exterior of said hou'sing,

whereby said pawl may be released wheufi desired.

117 denotes torsional springs prefeiflblj m0unted 011 a convenientone of the bolts 26 and carrying a shoe ll8fada ted to engiage the roll of film on the spoo '13,said sh'oef' being covered or fac'ed with a uita ble ma terial, such as plush, adapted to interpose a frictional resistanee against the unwinding of the film fr0mthe spool 13 without injuring the fade of s'.id film. Seid frictional resist ance, while permitting a. ositive withdrawal of the film by the, ro er 12 when pressed against the surfae 20, is preferably suflicient to neu'tralize 01' overcome the spring tension app'lied tb the spool 14 by the spring motor.

In order t0 keep the tensionof the spring mbor within the limits necessary to prevent accidental withdmw-al 0f the film 15 from the spool 13 aga.inst the resistance of the friction slioe 118, and ab the same time 00 insure a torsional moment at least suflicient to Wind up said film upon the spool 14 when positively withdrawn from the spool 13 by the roller 12 and subsequently releaised by the Iatter, there is provided a Geneva stop device comprising a wheel 137 mounted on a square portion of the winding post 122 and having a tooth periodieally engaging a wheel 138 rotatably mounted on the housing 112. The wheel 188 rotates intermittently,

advancing one segment for each rotation of the wheel 137, 311d is preferably so coustr ucted as to be limited in its rotation, as will be familiar t0 those skilled in the art. The segments of the wheel 138 may, if desired, be provided with numerals or other marks wh1ch pas a fixed mark on the hausing 112 as the Wheel rotates f0r the purpose of approximately indicating the number of rotations of the winding Post 122 whioh have been made or which are still possible without rewinding.

The complete operation of the apparatus is as follows:

T0 load the device the slide or'cover 28 and light Saal 100 are removed and the cas' ing turned with its back 01 open side up. The spool 13, having wound thereon the sensitized strip or film 15 (which preferably terminates at eah end in a suitable length of attached non-sensitized strip) i-s inserted into the casing und engaged by the centers 106. The non-sensitized strip is sufliciently unwound to pass around the roller 12 t0 the spool 14, and this portionis so inserted, this operation being assisted by the guiding ribs 104. The free end of the strip having been assed through the Slot in the spool 14, the liztter spool is now inserted into the casing, and suitably engaged, a;t its 0pposite ends,

by the center 108 and (10g 109, respeotively.

If necessary the spoo1 14 is now 'turned, by mean;s of the handle 115, in order t0 wind up the slack ortion of the -strip, and the shde 28 and l1ght seal 100 2ue replaced.

The battery 18 having been connected to the apparatus, and the spring motor in the housing 112 having been wound, the fly Wheel und roller 12 are caused to rotate at a definite, uniform speed by pulling the lever to the proper point 0n the scale 57 and releasing the sa.me, as heretofore ex- Plained. The apparatus is now firmly pressed upon and passed over said page 0r surfaee, the head 90 of the circuit breaker at this time being depressed to close the circuit t0 the lamps 17, thus causing the light to be' projeoted, through the light filter 93, lens'94, and roller 12, upon the page while the apparatus is being moved 0ver the same.

During this movement the film or strip 15, gripped between the page and the roller 12, is gradually withclrawn from the spool 13 against the resistance 0f the friction shoe 118, anal, when released by the roller 12, is immediately wound up upon the spool 14 under the influence of the spring motor. As

successive portions of the film are thus presented to 'suocessive portions of the page, said film is causecl 130 receive a, photogenic impression of the portion of the surface traversed, as heretofore explained. Should a certain portion of unexposed space be required on the film, in order to omit certain portions of the matter copied, 01' f0r the purpose of inscribing a title or other notes, 1ts 1s only necessary 130 release the head 90 of the circuit breaker at the time of passing over such spaee.

It Will of Course be understood that the rate 015 travel of the apparatus over the page is controlled and rendered constant by the rate of rotation of the roller 12, which is in tui*n' determined by the fly wheel 45, so that all portions of the strip are given a substantially uniform exposure; The tend- 'encyon the part 0f the operator should be to movethe apparatus a, little faster than the roller 12 travels, without, however, causing the strip t0 Slip upon the page, but a1 ways mai'ntaining a firm pressure, thus ca using eonsiderable frictional resistance against slipping, all for the purpose 0f aiding the fly wheel in maintainmg its initia.l velocity by overooming the frictional resistance in the gears 01 other conneotions by means of the manual power so supplied.

After the desired copy has been made the head '0f the circuit breaker is releasod and the apparatus lifted from the p-2tge. Rotati0n of the fly wheel may now be stopped by applying brake 59 by means of the button 61, und the eover 19 plaoed over the mouth of the apparatus -t0 protect the strip from injury and exclude extraneous light.

Having thus described my invention I claim and desire to seci1re by Letters Patent:

1. A photogenic copying machine comprising means for applying a sensitized strip to a surface to be copied, means for projectfing light through s'aid strip upon said surface, and means to obtain a substantially uniform exposure of said strip.

2. In a photogenic copying inachine, means for applying asensitized strip to a surface t0 be copied, said machine being movable over said s1irface to present successive portions of said strip to successive portibns 0f said surface, and means for regulating the speed of travel of said machine over said surface.

3. In a photogerfic copying machine, a-

roller for applying a sensitized strip to a snrface tobe copied, a fly wheel qperatively connec ted with the said roller, a pinion counected with said fly wheel, and a spring impelled gear segment coperating with sa1d pinion.

6. In a photogenic copying mach1ne, a

' casing havin an open mouth, a roller jourconnected with said roller, a pinion connected with said fly wheel, a spring impelled gear segment normally disengaged from said pinion 'but adapted to engage and turn the same, and means for angularly positioning said pinion for engagement by said segment.

8. In a photogenic -copying machine, a roller for applying a sensitized strip to a surface 130 be copied; a fly Whee1 operatively connected with said roller, a pinion connected with said fly whee1, a springimpelled gear segment norma1ly disengaged from said pinion but adapted to engage and turn the same, a 1ever, and a spring finger on 'said lever for angularly positioning said pinion for engagement by said segment.

9. In a photogenic copying machine, a roller for applying eisensitized strip to a surface t0 be copied, a fly wheel operatively connected with said roller, a pinion.connected with said fly wheel, a spring impelled gear segment normally disengaged from said pinion but adapted to engage and turn the same, a lever, an operating stud for said lever, and a spring finger 0n said lever for angularly positioning said pinion for engagement by said segment.

10. In a photogenic copying machine, a ro11er for applying a sensitized strip t0 a surface to be copied, a fly wheel operatively connected with said roller, a pinion Connected with said fly wheel, a spring impelled gear segment normally disengaged from said pinion but adapted to engage and turn the same, a 1ever, a frictional pivot f0r said lever, and a spring finger on said 1ever for angularly positioning said pinion for engagement by said segment.

11. In a photogenic copying machine a roller for applying a sensitized' strip t0 a surface to be copied, a fly wheel operatively connected with said roller, a pinion connected with suid fly wheel, a spring impelied i ge'ar Segment normall v d1sengaged from said surface to be copied, afly wheel operatively connected with said roller, a pimon connected with said fly wheel, a spring impelied gear segment normally disengag*ed from said pinion but adapted to engage and turn the same, an operating arm for said Segment, a lever, an operating spring finger on sa1d lever for engaging and stud for said lever, a

angularly positioning said pinion. and a cam head on said operatlng arm for engaging said stud t0 disengagesaid finger frdm said 86 pinion.

13. In a photogenic copying machine, a

roller for applyin asensitized strip to a surface to be copie a fly wheel operatively connected with' Said roller, and operating means for said fly wheel adapted t0 cause' rotation thereof at diflerent predetermined speeds.

14. In a photogenic copying machine, a

roller for applying a sensitized strip to a 90 surface 130 be copied, a fly-wheel operatively connected with said roller, operating means for said fly whee1, an operating arm for said operating means movable to difierent positions t0 cause rotation of said fly wheel at difi'erent speeds, and a graduated Segment over-which said arm is movable, said segment being provided with stops to limit the move ment of said. arm.

15. In a photogenic copying machine, casing havii1g an open mouth, a roller journaled in said casing at said mouth for applying a sensitized stri copied, a fly wheel Wit in said casin and operatively connected with said r01 er, a;=

pinion connected with said fly wheel, a% spring impelled gear segment coperating with said pinion, an operating arm for sa1d segment outside said ca'sing, and a graduated segment secured 'to the exterior of said casing and over which said arm is movable,

said segment bei ng provided With stops t0 1imit the movement 0f said arm. 16. A photogenic copying machine comprising means for applyinga sensitized strip 1 15 17. A photogenic copying machine comprising a transparent roller for applying a sensitized strip t0 a surface 130 be copied and means for projecting light through said roller and strip upon said surface.

18. A photogenic copymg machine comprising means for applying a sensitized strip t0 a surface t0 be copied, a source of light, and a 1ehs interposed between said source of Iight and said strip.

19. A photogenic copying machine com- 130 a surfaice t0 be iprisi ng a transparent rllef foi .applyin to a surfaee to be copied', a. s0urce of light,

sensit ized strip' t0 asurface t0j be -copie a 'sourceof light, and;a 1ens int6rp'osed between sziid source of light and said rollen 20. A photogem'c copying magh ine con oprisin'g means for applying a sens1t1zed str1p '21. A photogen1c copymg machi'ne .00mprising a casin provided with means for applying a sens1 tized strip to a surface 130 be kund a light filter within smid casir1g between copi0d, a source of light .within said cais ing .said source of light and said strip, said casv ing hzlving an ope ning to .p'ermit the remo val 22. A photogeni0 copying ma0h i ne 00111- prising a cain provided with means for apply1ng a sens1ti2ed strip to q snrfacg to be c0Pied and a source of light w1th1n sa1d cas fing, said casing being provided with, an

opening to perm1t the nemoval 0f said source Of light.

. applying a, sensitized strip to a suiface to be copied, a lam supporting platze slidably moun'ted in sai casing, and. one or more lamps carried by said plate, said casing being provided with an opening to permit the removal of said plate. v

25. A photogenic copying machine' comprising means for applying a sensitized strip prising a casing havmg an open mouth,-

to a surface to be copied and a plurality of spacedelectric lamps for pr0jecting light upon said strip and surface.

26. A photogenic copyi ng machine ganprising a, main casing having an open mouth,

a transparent roller journaled in said easing -at said mouth for applying a sensitized strip to a, surface t0 be copied, a lunp' casing within said main casing and having a portion partial1y inclosing said roller, and a source of light within said lamp casing.

27. A photogenic copying machine comprising a main casing provid d with .means for applying a sensitized strip to a surface to be copied, a lamp casing within said main casing, a source of light within said lamp casing, and a 1ens supported by said lamp casing betvveen said source 0f light and said strip.

28. A phot0genic copylng machine comprising a main casi.ng provided with means To r applying asensitize0l strip to a surfa0e to be copied, a'1amp casing within saidmain casing, a source of light within s'id lamp casing, and a 1ight filter supported by said lamp casing between said source f light and said strip.

29. A photogenic copying machine comprising a main casing having an open mouth, 1

a 1312LI1SP31'8110101181 ournaled in said casing at S5p id' mouth for applying a sensitized strip t0 a surface to be copied, a lamp casing within saiid main casing and having a portion par- =tia'lly inclosing sai roller, a s01'1rce 0'f light ;yvithin said lamp casing, and a lens and a light filter supported by said 1amp casing.

betweenSaid. source of light an'd said. strip.

30. A photogenic copying machine comprising means for applying a sensitized strip toa surface to be copied, an electric lamp for 'projec'ting lig ht through said strip upon s'aid surf ace and a manually0perated circuit controller for said 1amp operable to control the circuit t0 said lamp independ- {ently of the applioati Of Said p Q .Sflidsurface. 1

31. A photogenic cdpying machi he comapply1ng asen sitized strip to a surface to b'e copied and means within said e asing for winding saidstrip, said casing being provided with flanges 01' ribs for guiding said strip between said applying means and said prising a ca sing pro-vided with means f0r lighi; upon said.strip, and a light seal surrounding said mouth and engag1n said sur- 'face for preventing extraneous hght from striking the ortion 0f said strip in engagement With saidsurface.

33. A photogenic cqpying machine com rounding said mouth and engaging said sur-* face for preventing extraneous light from striking the portion of said strip in engagement with said surface, said light sea1 having a covering of soft, elastic, material to prevent injury to' said surface.

34. A photogenic copying machine. comprising a casing having an open mouth, means located at said mouth f0r applying a sensitized strip t0 a surface.to be copied, means within said casing for projecting light upon said strip, and a light seal adjacent said mouth and engaging said strip, said 1ight sea1 having a covering 015 soft elastic material to prevent injury to said strip.

35. A photogenic copying machine comprising a casing having an open mouth, means Iocated at said mouth for applying a sensitized strip to a surface to be copied, means within said casing for projectin light upon said strip, and a light seal a jacent said mouth and detachably connected with said casing.

36. A photogenic copying machine comprising a casing having an open mouth, means located at said mouth forapplying a sensitized strip to a surfaoe to be oopied, means within said casing for projectin light upon said. strip, and a light seal a jacent said mouth and engaging Said strip, said light s'eal being detachably connected with said casing to facilitate the insertion of said strip.

37. A photogehic copying machine 00mprising a. casin having an open mouth, means located at sa.id mouth for applying a.

Sensitized strip t0 a. surfsvce to be copied,

means within said casing for winding said strip, means within said casing for pr0- jecting light upon said strip, and -a 1ight sea1 adjacent said mouth and engaging said strip, said light sea1 being detachably 0011- nected with said c2 1sing and said casing being provided with flanges or ribs f0r guiding said strip between said applying means and sa.id winding means t0 faeilitate the insertion of said strip.

38. A photgenic copying machine com-' prising a casing ha.ving an open mouth, means located at said mouth for applying a sensitized strip to a surface to be copied, means within said casing for projecting 1ight upon said strip, and a 1ight seal adjacent said mouth, said 1ight sea1 comprising a grooved attaching member conforming in shape to the edges of sa.id mouth, composed 0f resilient material, und having a covering of soft, elastic material.

39. A photogenie copying mag:hine comprising a casing having an open mouth, means located at said mouth for applyin a sensitized strip to a surface to be copie and a movable cap for closing said mouth for protecting the portion of said strip adjacent thereto when said machin n0t in use.

40. A photogenic copying machi'ne com prising a casing having an open mouth, means located at said mouth for applying a sensitized strip to a surface 120 be copied, a movabl'e cap for closing said mouth for protecting the portion of said strip adjacent theret0 when said machine is not m 1'1se, and a 1ight seal surrounding sa.id mouth und cooperating with saidcap.

41. In a photogenic copying machine, a casing, rollers within said u1sing for winding a sensitized strip, means for rotatabiy which the unexposed portion of said strip is wound, and means to resist turning of said spool o1 roller to unwind said strip.

43. In a photogenic copying machine, means for applying successive portions of a sensitized strip to successive portions of a surface to be copied, a spool or roller upon which the unexposedportion of said strip is wound, and a spring pressed friction sh0e engaging the strip on said spool 01 roller, said shoe being covered with a soft material to prevent injury to said strip.

44:. In a phonogenic copying machine, means for applying successive portions 01 a sensitized strip to successive portions of a surface to be copied, a. spool or roller on .which the-exposed portion of said strip is wound, and means for Preventing rotation of said roller in a direction to unwind said strip.

45. In a photogenic copying machine,

means for applying successive portions of a sensitized stnp to successive portions of a v surface to be copied, a' spo0l or roller on surface t0 be copied, a spool 0r roller on which the exposed ortion of said strip is wound, a pimon operatively connected with said rol1er, a pawl coperating with said pinion for preventing rotation of said roller in a direction to 'unwind said strip, and means whereby said pa.wl may be disengaged from said pinion.

47. In a photogeniccopying machine, means for applying successive portions of a sensitized strip to successive portions of a surface t0 be copied, a spool or roller on which the exposed portion of said strip is wound, and means for applying, a continuous turning force to said spool or roller tending to Wind up said strip.

48. In a. photogenic copying machine, Ineans for applying successive portions of a sensitized strip t0 successive portions of a surface 130 be copied, a spool or roller upon which the unexposed ortion of said strip is wound, means t0 resist turning cf said spool 01' toller t unwind said strip, a second spool o1 roher on which the exposed portion of said strip is Wound,- and means for apply- 20 which the exposed portion f said strip is named spoo1 or rollen tending to Wind up said strip.

49. A phongenio copying machine comprising a transparent roller f0r applying successive portions er? sensitized strip to successive portions 0'f a surface t0 be copied, means for prnjecting light through said roller and strip u 0n said surface a spool or roller upon whnzh the unexposed portion of said str1p is wound, means t0 resist turning of said spool or rollen to unwind said strip, a second spool er roller on which the exposed portion of snid strip is wound, and means for applying a continuous turning force to said last-named spool 01 rol1er tending to wind up said strip.

50. In a photogenic copying machine, means I"or applying successive porbions of a sensitized strip to suecessive portions of a surface 130 be copied, a spool or roller on wound, and n manually Wound spring and connect1ons for applymg a cont1nnous turning force to said spool or roller tending to Wind, up said strip.

5L In a photogemc copying machine, means for applying successive portions of a sensitized strip to successive porti0ns of a surface to be copied, a spool or roller 0n' which the expoed portion of said 'strip is wound, a spring, connections intermed1ate said Spring and roller for winding said spring and for applying a continuous turning force to said spool or roller -tending to Wind up S8id strip, said connections permitting said spring to be wound without turning said spool or rollen 52. In a photogenic copying machine, means for applying snccessivs pnrttions of a sensitized strip to successive portions of a v surface to be copied, a spool 0r roller 011 which the exposed portion 025 said strip is Wound, means f0r preventing ro"aiaion oft said spoo1 01 roller in a direction t0 emwind said strip, a springwonnections interpermitting said spring to be Wound without turning said spool o1 roller.

53. In a photogenic copying machine,

means for applying successive portions of a.

sensitized str1p to successive portions of a. surface t0 be copied, a spool o1 roller on Which the exposed portion 'of said strip is wound, a manually Wound spring an connections for applying a c'ontinuous turning force to said spool or roller tending to Wind up said strip, nnd means 130 indicate the available energy 0f said spring.

54. In a photogenic copying machine, means for applying successive portions of a. sensitized strip to successive portions 0f a surface to be copied, a spool or roller 011 which the exposed ortion of said strip is wound, a, manually wound spring and connections for applying a continuous turning force to said spool or roller tendin to Wind up said strip. and means for linnting the minimum and maximum tension of said spring.

55. In a photogenic copying machine, means for applying successive portions 0f a sensitized strip to successive portions of a surfnce to be copied, a spool 0r roller on which the exposed porti'on of said strip is wound, a manually wound spring and con-- 'nect1ons for applymg a eontnnuous turn1ng JOHN L. MAUCH.

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