US1488555A - Printing machine - Google Patents

Description

April 1, 1924',

P. E. nlomes PRINTING umcumn Filed March 31 1921 4 Sheets-Sheet 1 J V i gi y/gal??? Wall/111M104 Plfza'zvds 8V 7 6 A T TURN E Y8 INVENTUR April 1, 1924. 1,488,555

' P. E. RIDINGS PRINTING MACHINE File'd March 31 1921 4 Sheets-Sheet 2 April 1', 1924. 4 1,488,555

' P. E. RIDINGS PRINTING MACHINE Filed March :51. 192i- 4 Sheets-Sheet a ll ITORNEYS April I, 1924, 1,488,555

P. E. mamas PRINTING MACHINE Filed March 31 1921 4 Sheets-Sheet 4 A ITORNEIS Patented Apr. 1 1924.

UNITED STATES PAUL ELGIN RIDINGS, OF TARKIO, MONTANA.

rnm'rnie mcnmn Application and "am-en $1, 1921. Serial No. 451,177.

To all whom it may concern:

Be it known that I, PAUL E. Rmmos, a citizen of the United States, and a resident of Tarkio, in the county of Mineral and Stateof Montana, haveinvented a new and useful Improvement in 'Pri'ntin Machines, of iwhichgthe renewing is 'a. -ful clear, and exact-description; 1

My invention relates to machines for printing-photographicprints from film negatives and it consists in the "combinations, constructions andarrangements herein described and claimed. v

.An object of m'y-invention is to provide ade'viee designed for use articularly in the printing commercially 0 prints from film negatives-and having means by which the prtiiaing operation may be greatly facili Afurther object of my invention is to provide a. device of the typedescribed that is adapted to accommodate film negatives and p'rint papers of various sizes.

A further object of'my invention is to provide a device of ,the' typedescribcd" that has means ca able of being adjusted to vary as desired t e widths of the margins'on the completed prints.

A further object of my invention is to provide a device of the t pe described that is adapted to acc'ommo ate se arate film negatives or a strip of connecte film nega' tives.

A further object 0t my invention is to provide a pri'ntin' device having a mechanism arranged to operated automatically when the prints are made to number each print, if desired.

A further object of my invention is to provide a printing device having means for holding the paper to be printed in operative position until the paper has been printed and then for releasing the printed paper. A further object of my invention is to provide a device of the ty described, in which a platen carrying tie paper to be printed and means of controlling the operation of the light producing means in the device are arranged so that the li ht producing means can only be energized after perfect contact between paper and film is made, and 'is de-energized before contact between paper and film is released.

A further object of my invention is to provide a device of the type described that is thoroughly eil'ective for the purpose intended, can be operated readily, and is not likely to et out of order easily.

ther objects andadvan'tages will appear in the following specification, and the novel features of the invention will be particularlypointed out inthe appended claims.

My invention is illustratedin the accompanymg drawings, forming part ofthis ap pl ti tw c Fi re '1 is a'longitudinal section through the evice, portions bein -shown in section and other portions being roken away,

Figure 2 is a plan view of the device, Figure 3 is a plan view, showing the top portion of the device in raised position,

Figure 4: is a side elevation, partly in section, showing a fragmentary portion of the device.

Figure 5 is a sectional view through a ortion of the devicealong the line 5-5 of i ure 2,

ignre 6 is a'sirnilar view of another portion of the device along the line 6-6 of Figure 2,

. igure 7 is a similar view throu h still another ortionofthe device along the line 7-7 of igure 2,

Figure 8 is a detail of a fragmentary portion" of the device,

Figure 9 is a section along the line 9--9 of Figure 2,

Figure 10 is a side elevation of a fragmentary portion of the mechanism shown in Figure 1,

t Figure 11 is a section along the line 11l1 of Figure 1, and

Figure 12 is a section along the line 12-12 of Figure 3.

In carrying out my invention, I provide a frame having side members 11, end members 2 and 3, respectively, and a top consisting of a horizontal section 4 at the forward end of the frame and an inclined section 5 hinged at 6 to the end member 3 at its upper edge and adapted to rest upon the upper edges of the side frame members 11. The frame is made of any suitable material, preferably wood, and in the present instance is sup orted by a flat member, such as a table top having a cavity 8 in its upper surface to which the frame is adapted so that movement of the latter relative to the table 7 will be prevented. The frame members ll, 2, 3 and 4 are secured together in any suitable manner.

The inclined top section 5 is formed with an opening-'9 therethrough, the walls of which have an i nwardly egctending continuous rib 10. K platen of transparentmaterial, such as 'a pane of glass, 1s mounted in the opening to rest upon the rib 10, being secured in position in :anyzsuitablmmanner so that the upper surface thereof is flush with the upper surface of the top-section 5.-

A metal case or cabinet 12 that is open at upper end is formed with alatera'lly extend ing flange 13 at its upperedge secured at 14 to the under surface jfof the top sect on '5 aroundthe opening 9 'so'thatrays of ;h ht from illuminativnfi means disposed wit m t cabinet b f'pr i c e up f e' through the' transpareilt member 1'1, the inner walls of sau a being preferably finished ffl shtup a y- The cabinet is p e .-with a Kiwi E215 that consists of a portionjoffa.sidewall-{of the, cabinet hingedjtojthebottomflat 16 normally maintained in; blosed position; by a catch 17 engagin with the stationary portion of thef side #51. It-will be noted that 2 the cabinet 12 depends within anopening 18 throughthe tab e top 7 and that access to the interior of the cab net may be had'when the closure is open so'that illuminating means maybe operatiyely installed within the cabinet. The illuminating means embodied in thedevice'and'the'means' ro'vided for controlling the operation of ejsa'me will be described in detailhereinafter.

In the operation 'of'the device; the film negative is disposed across the transparency 11 and asensltized paper upon'which the photographic inipiessionis'to be made is moved into the roper-position' relative to the negative to printed therefrom when the rays of light from the illuminating means within the'cabinet are projectedupwardly through the transparent plate 11. To move the sensitized pa er into'po'sition to be printed, I provide a p aten' 19 (see Fig ures 1, 2 and 7) that is formed of an suitable material, such as wood and is fas ioned with parallel extensions 20 20 to the rear edge thereof, which form hinge .members that are connected at 2121' by a spring joint to cooperating hinge members 2222 secured adjacent their rear ends by screws 23 or the like to the inclined top section 5. A bolt 24 is projected through eacho'f the hinge members 22-22. adjacent its forward end and through the section 5, as shown best in Fi re 7. A spring 25 is mounted on the be t 24 between a washer 26 thrust upwardly thereby against the under surface of the section 5 and a washer 27 that rests upon a nut 28 screwed on the bolt 24 so that the forward ends of the hinge members 2222 may be raised upwardly against the tension of the springs 25 and the face or under surface of the platen 19 will thus contact evenly along its entire surface with the surface of. the suitable mater-1a such as felt 31 that is sufextensions 2020 and the hinge members 22 22 tend to maintain the platen 19 in its raised position against a platen rest 29 that is secured at 3030 to the section 5 adjacent the rear edge thereof. The face of the under laten 19 is covered with a ficiently yieldable to closely contact with the entire surface of the work engaged.

The laten 19 is designed to be operated manually and so that the same 'may be quickly and easily moved from the osition indicated by the dotted lines in igure 7 to the position illustrated in Fi ure 1, I provide a handle 32 that is carrie between the arms of a U-shaped frame 33 that is hingedly secured at 34 to the reverse side of the platen 19 alon its forward edge. The hinge 34 is provided with a stop lug 35 arranged to prevent movement of the handle 32 from the position illustrated in Figure 7 toward the rear end of the platen while permitting movement of the handle in the opposite direction or forwardly.

The sensitized paper to be printed is carried by the platen 19. In order that the same, may be maintained in adjusted position until the printing thereof has been completed, I provide a paper clamp carrier 36 comprising a substantially U-shaped body portion having the web thereof disposed transversely across the upper surface of the pllaten along its rear edge and having para el arms 37 extendmg across the side walls of the'platen and formed integral with laterally extending illillS 3S38 which are pivoted at 3939 to the side walls of the platen adjacent the forward end thereof. The paper clamp carrier 36 has three integra clips 40, 40' and 41 extending transversely across the rear end wall of the platen so that lateral extensions 42, 42' and 43 res ectively thereof are moved into contact wit the face or under surface of the platen 19 along its rear edge to clamp work to the under surface of the platen when the paper clamp carrier 36 is in a. certain position relative to the platen. A plurality of bolts 44am projected through the platen 19 so that the ends thereof extend through the openings in the web 36, the heads of the bolts being counter-sunk in the under surface of the platen. Springs 45 mounted on the bolts 44 and seated in sockets 46 in the upper side of the platen react against the under surface of the web of the paper clamp carrier 36, tending to move the latter upwardly against nuts 47 screwed on the ends of the bolts 44 and maintaining the integral clips in position to clamp the paper to the platen. it fourth paper clamping clip 48 is disposed contiguous to one of the side walls of the platen and has the form of ajbell crank lever pivoted between lugs 49 secured to one of the extensions 38 to the paper clamping member. One of the arms of the. bell crank lever 48 normally abuts the ad'acent arm 38 while the other arm of the crank' lever extends at r'ht angles thereto aindhas'p'rojected throug an-opem ing therein, a bolt 50 that engages a threaded opening 'in ajlug 51 secured .to the platen in an "su table manner at .52. 7 second bo tj5 3 has'jits end frojected'through the arm j'o'fthe bell crankilever 48 that normall abutsthe' adjacent '38 and is fasten at its end in thelatter. Aspirin 54: diap edf he bo t,fi ilbetvee itsfiead and the 0f the lever. normally hQIdsthg'Iattei -the position indicated by thefujll lines' 9.. r

The paper "claingcaiiriertiifi is maintained in the position re tiye tothe platen illustrated in; Figure 9 when. the latter is in raised or lowered positions. 'When the platen 19 is 'moved from the osition shown in, Figure 2 toward the position indicated by the'dotted line sin Figure 7, a lug 55 that is integral with the web'of .the paper holding clamp is ,,engaged bywla thrust member 56 that is 'pivotally'connected at 57 to an armff'58. The, Iatteris pivoted at one end .at59 to a lug .60 secured to the section 5 of the top as atfil is connected by a link 62 at itsother end to an upstanding lug 63 that is secured at 64 to the upper sur ace of the platen Q19. stated, the thrust member 56 engages the lug 55 when the platen is moved upwardly from the position illustrated in Figure 2 and the paper clamp carrier 36 isthereupon moved into the position shown in Figure 7 against the tension of the springs 45 so that. the clips 40, 40' 41 and 48 no longer en'gage the ,work which is free to move onaccount of gravity along the inclined section 5 .toward the section 4 of the top. A tension spring 65 has a connection at 66 with the arm 58 and a connection at its other end with the thrust member 56 so that the thrust member is moved out of engagement with the lug 55 when the platen has been moved into the osition indicated by the dotted lines in *igure 7 and will be maintained out of enagement with the lug 55 until the platen has been moved into the sition shown in Figure 1. At that time, t e thrust member 56 will engage the lug 5 5 but obviously no pressure will be exerted on the latter until the platen is raised. A second thrust mem ber 67 that is similar to the thrust member 56 is pivoted at 68 to a lug carried by the platen rest 29 and is maintained by a spring 69 against a stop 70 integral with the platen rest so that the thrust member 67 will engage the lug 55 when the platen is moved into the position indicated by the dotted lines in Figure 7 to force the paper clam ing member 36 into the position indicate by the dotted lines in Figure 7 so that the paper to be printed may be placed in adjusted posi tion and will be firmly clamped by the clips when the platen is moved forwardly.

It is important in order that the printing operation may be facilitated that the illuminating means be actuated coincidently with the operation of the platen. I therefore mount in sockets 71 secured within the case 5 to the bottom thereof, a plurality of incandescent lamps 72 arranged about an auxiliary incandescent lamp 73. The latter is continuously energized while the device is in use to allow film n ativcs to be properly adjusted. The incaii gescent lamps 72 are operatively connected in a circuit having e ectrical conducting wires 71 74 extending through the wallof the case 12 and connecting with spaced apart contacts 7 5 and 76, the connection being effected by means of binding posts 77 and a suitable insulation 78 being interposed between the wall of the case 12 and the contacts and 76. Coopcrating contacts 79 and 80 are spaced apart and connected by a suitable insulating member 81 to which is secured a clamp 82 having a push rod 90 projecting through a cross bar 83 that is slidably mounted on upstanding parallel rods 84 and 85 and is normally maintained in elevated position by the action of compression springs 86 disposed on the rods 84 and 85 between the cross bar 83 and the insulation 78 with which the rods 84 and 85 engage at their lower ends. The action of the springs 86-86 therethrough tend to maintain the connectors 7 9 and 80 out of engagement with the contacts 75 and 76 and the cooperating contacts 87 and 88 which are secured to the insulating material 78 in position to be engaged by the connectors 79 and 80 coincidently with the engagement of the latter with the contacts 75 and 76. An electrical conducting member, such as the insulating wire 89 connects the contacts 87 and 88.

The push rod 90 extends through an opening in the housing 91 for the switch mechanism described and as stated, extends through a. registering opening in the cross arm 83. A disk 92 rigidly mounted on the push rod 90 abuts the cross arm 83 so that movement of the push rod inwardly will occasion a like movement of the cross arm against the tension of the springs S686 and thereby cause the engagement of the connectors 79 and 80 respectively, with the cooperating contacts 75 and 87, and 76 and 88, thereby closing a circuit and energizing the incandescent lamps 72. It is to be understood that the lamps 72 and the lamps 73 are connected by electrical conducting means (not shown) with any convenient source of electric current supply. An operating arm 93 that 'is intermediately pivoted at 94 to a lug 95 secured to the under surface of the section 5 and extends through a slot 97 in the latter is arranged with its lower end portion engaging the push rod 90 and with its upper end portion engaging a thrust rod 98 that IS slidabile in openings through upstanding arms of a guide member 99 secured to the upper surface of the section 5 and is formed at its other end for engagement with a second push rod 100. The latter is slidable in a guideway 101 extending through the platen 19 intermediate the upperand lowerwalls thereof and projecting beyond the forward end thereof m position to be engaged by a cam member 102 that is integral with'the frame 33 for the handle 32. A spring 103 disposed on the push rod 101- and seated in a socket 104 reacts against-thejhead 105 of the pushrod 100 that is engaged bythe cam member 102 so that the' pushrod 100 is n0rmally maintained out'of engagement with the push nod 98. Obviously, when the bandle 32 is moved forwardly, the push rod 100 will be slidably moved along the guideway 101 to occasion a like movement of the push rod 98 and the operating arm 93 will be rocked about its pivotal connection sothat the switch mechanism which has been described in detail will be actuated to close a circuit and energize the incandescent lamps 72. 1

The film ne ative from which the prints are made its disposed across the transparency 11 so that the rays of light from the incandescent lamps 72- -72 are projected therethrough to occasion the printing of the sensitized paper that is moved into contact therewith by the platen 19, I provide means ofmaintaining individual film negatives or film negatives connected in strips in operative position and included in such means is a clip 106 that is pivoted at 107 for movement above the section 5 of the top and has an arm 108 rigidly connecting therewith to extend through a slot in the section 5 for pivotal connection with a link 109. The link 109 is connected by a rocker arm 110 with a: rock shaft 111 that is journalled in brackets 112 secured to the under surface of the section 5. A spring 113 connects the arm 108 with a lug 114 secured to the under surface of the section 5 and exerts a tension on the clip 106 that tends to maintain the downwardly curved end 115 thereof in position to clamp the film negative in adjusted position on a template 116 that is disposed on the upper surface of the section 5 and is special in construction as will be hereinafter set forth. The rock shaft 111 is bent downwardly at 117 in position to be engaged by a laterally extending pin 118 (see 1* igures 1 and 6) carried by an arm 119 that 18 formed with an integral extension 120 pivoted at 121 to a bell crank lever 122 pivoted to a lug 122' at 123' secured to the under surface of the section 5.-"A"link' 123 connects the'bell crank lever 122 at its free end with a flexible cable 124 that'is passed around guide pulleys 125 and connected we pedal (not shown). The pedal'is' positioned for operation by an operator standing or sitting in front of the section 4and when thepedal is depressed to pull the cable 124 downwardly, the lever 122 will 'be 'r0ckedabout its pivotal connection 123', the pin118 will thereupon be moved into *enga emenc with the down-turned end of the I roc (shaft 111, rocking the latter and raising the clip 106 against the tension of the spring1'13to release thefilm negative.

- The'cl'ip 1061s operated at each operation of the' pedal I provide an auxiliary. clip 126"(see Figures 1 and.4) that is rigidly mounted on a shaft1'27 'ournalled in a bearing that-"is securedtdtlie upper surface of the section 5' .to project into an angular opening 129 through the section 5. The shaft 127' has rigidly mounted thereon an operating arm 130 so that the clip" 126 may be moved into inoperative position as indicated by the dotted lines in Figure 4; A second arm 131 is'rigidly mounted on a shaft 127 to project through the opening 129 for pivotal connection at 132 with .a link 133 which'is pivotally connected at 134 to a second link 135.1 Thelatter is pivoted at 136 to a hanger bi acket 137 secured to the under surface of the section 5. 'A spring 138 connects at'one end with a lug or bracket 139 secured to the under surface of the section 5 and edits other end to the pivot in 134 connectin the links 133 and so t at the tension 0' the spring tends to maintain the clip 126 either operative or inoperative position, as clearly shown in Figure 4 When the clip 126 is in operative position as indicated by the full lines in Figure 4, a cam member 140 that is formed integral with the extension 120 .to the arm 119 will contact with the link 135 at each operation of the arm 119 so that the clip 126 will be raised at each operation of the arm 119 00- casioned by'use of the pedal hereinbefore mentioned. The cam member 1 10 will not contact with the link 135 when the clip 126 is in inoperative position as indicated by the dotte lines in Figure 4.

In the event it'is desired to print from uncut film negatives connected in a strip, an additional clamping member or clip 141 is provided (see Figures 1 and 5). The clamping'member 141 is disposed in a slot 142 through the section 5 and is pivoted intermcdiately at 143 to a lug 144 secured to the under surface of the section 5 so that the clamping member 141 may be moved about itspivot as illustrated in Figure 5. A pair of springs 145 connecting at one end with a pin 145' through the free end of the clamping member 141 have their other ends secured at 1 46.to the. lug !14$;-, and.tl ius tend to maintain theclamping member; 1&1 in either operative. position or, inoperatigqe position. When the clamping member 1'41js' in operative position, .the lo er-endther Qf is .in positionoto be .engagedhy. midi-5st portion 1470f the. rockshaft 11,1. that the clamping member 141 wilhhe .raised into thehposit-ionindicated-by; the fu ll lines in Figure 5 when the rock. shaft; 1-11 is aotuated by means of the-pedalq livhen-thqclampilrg member 141 is'. 1'n inoperative'positiomr it will. not be 147. 'of the 15- .;t e ee't a me w r 'o 'capable of, producing prints ot-commercial .4. sizes'andlhaving margins val-yin v in width 1 de ei-ff lle' sa lkr ri Ml e-t m- ..plate ,116" which has the substantially .-Y. shaped form illustratcd theqangle at 148 y, portion of the template 116 i ittman 14am an opman e-m- 150 that ris ivotedatan end thereof to thefu'pper sur ace of'the section 5 as at 151.. The arm150 extends thro h a. guide member 152 and-,iszformed. wit a pointer 153 for p'ositioningin l alinement with graduation marks carried bythe scale 1 plate 154. ;The graduations areiapgropriatelyv designated to indicatethe .w'

i ths of the margins that will he rovided when the template 116 is cpositione ..b -,operating the arm 150, as in icated b e .pointer 153. The template 116 has a p urality of holts or pins 155 each countersunk therein to extend through openings 156, in the wall of the section 5. Theopenin s 156 are each enlarged at 157 to provide the socket for a disk or washer 158, having a guide slot, and a washer 159 slidableon the rod or bolt 155 g is forced upwardly "ainst the disk 158 by :1 sprin 160 dispo on the bolt 155 between tie washer 159 and a cooperating washer 161 on the bolt adjacent its lower 'end so that the template 116 will contact avasher lfil in evenly and closely with the upper surface of the section 5. A nut 162 maintains the lace and provides a means for adjusting tl i e tension on the spring. A. cooperating template 163 that has the eneral form of a rectangle cut away along t ie-line 164 so that the angle at 165 is a. right angle is formed with aplurality of openings 166 arranged in rowsadjacent one end of. the

template 'and alined with slots 167 through the template adjacentits opposite end. The

template 163 is supported on pins or bolts 168 and 169 which are similar to the bolts 155 and project upwardly through slots 170 and 171 in the section 5. The bolts 168 and 169 have their lower ends countersunk in an o crating arm-172 which .is'irregular in smpe, as clearly shown'in Figure 3 and 1marked?appropriatelyvtodenote the various isizesf of:commercialtprintszl' Itwill be unsthat graduated late 182 iisidenticali witlifithe' p1&t&:154: an that the graduationsa thfeoni'zcorrespond" in value 'l.dr-nfltr that [is he ninedontigu-ityito the under surface '61? ,thesection i5 'hyctlie guide'hangeirs 1'13 (and 2175 i will be maintained a theresgainstb 1isl:s indicated at =183-since these "mechanisms =arer e'xactly 5 identical with that pneviously r i |described-.:as maintaining the 'iemplatefllfiiin contact with the upper-sur- ;-faee?of lthefsection 5'.

5.... um sforegoihg description of the 'vanrimlsdiparts 'lqf' sthesdevice, the :operation' :thereof -1'nay .zeadilj understood. The templates :116. andi 163 are adj usted relative Zto ,each-othento provide a: rectangular openqing; of e a-.-suitab1e :sizeas making a selected +'sizc of prints ZPhis-is accomplished 'as fol: -;1o ws The itemplatei; 163 is: fashioned with an I indicator 184mb one corner thereof. A P13110185, is seciiied to the upper surface of r thensection; 5 in a 'ipre'determined position relativeto the rectangular opening provided by the templates 1'16 and 163. The late 185 has marked thereon a: plurality of c iaracters indicating-the various sizes of commercial ;prints3and. the template is. adjusted relative ato1the supporting'bolts-orpins 168'and 169, so that the indicator 184 points to a selected jone-of the characters on the plate 185, thereby insuring the; desired size of print. Adjustments gto vary the margin of the mints; of an inch at a' time is aocom- 1 In (service, the sensitized sheets to be ,printedaref-placedionthe upper surface of cut.- l lhe'nirregular arm '172 ;the'; section :4 which-is referablysupported at a distance from the cor so thatthe operjatorstandingor sitting in front of the de- .rs"-ice-can :joperatethe pedal -(not shown) 7 which has been: hereinbefore referred to,and at ;the-- same time conveniently manipulate the gvarious elements of the'mechanism carried by, the section 5.: Sheets of paper are successively .placedgin-j position: "on the template 19 and will be maintained thereon 20 the platen 19ismoved upw 55 against a a shoul be pressed against -a-filmrnegativethat has been placed in position Fontheuppersurface ate of-the glass -11 landi's maintained in that. position y. the clip-106 when thetem- {plate 19 has. been moved: into the position illustrated in Figurewlii The'- =handle 3 2 is then pulledforwardl to-adtuato thearm 93, thereby closingt e-zswitch mechaliism shown in Figure1-1,: which= has been'decribed. in detail, :and closing-acircuit to energize the incandescent ilamps The rays of light from the 'latten' are projected :u wardly through'thc glass plate toaccoiir p' h, ,the Pof ,the' sheet of paper hel against the filni ne tizfi;

y carrying; member-.36 a'novedfiOWar the position "indicated-(in Figure; 7, 'thereby causing the clips 40, 40, 41 and 4,8' to 'disengage the printed-sheet 'of paper which moves along the inclined upper surface of the section 5, throughanwopenin '--186"provided therein (see Figure L)i"i 'hetop- 7 of the supporting table is provided with an opening 187 beneath-;:thez;openin'g 11-86 and the. print falls throughthe opening 187 into -a drawer 188 in the tab1e.-=- Auclos'ure 1'89 is provided for thexopenifi i186 and' this-clo- 1a art parallel rocker arms "190 '-whic 1 are rigidly moimtedat one end one :rock shaft 191. lThe -la'tte'r ist journalledih ha er bearings 192 which are secured tothe un er surface of the section 5. :The rock-shaft 191 is bent laterally at 193 and curved into a 4' substantially semi-elliptical shape, as"best seen in Figure 1.v A spring194 secured to the under. Surface 0f the section 5 i5 .81" ranged to react agamst=the curved and portion of the rock shaft 191 to maintainthe latter in constant engagement with a, pivot pin 19 that engages a link 196 that' -is pivoted at 195 at one end to a lug 197 secured to the under surface of the section 5, The pivot pin 198 connects the link--196at its other end to the adjacent end of the arm 119. When the arm 119 is movedby operation of the pedal, the link 196-wi1l be moved fromthe position illustrated into a vertical position, therelzly moving the closure 189 er199 or in closed position so that the upper-surface of the closure is flush with the corresponding s'urfaceof the section 5.

The 'film negative is usually held in adjusted position by the clip 106. In case 05 upper surface of the section 5, in the man- 203 is arranged to through an opening ner which has hereinbefore been set forth.

The auxiliary clips. 126 and 141 will then be operated by-the edal by means of which end with a lug-202 secured to the under surface :of the section 5, returns the arm 119 to original position.

'commerci'al printing, it is desirable that/the rints-from each ne ative bear a Hike nu'm r. In theembodiment of the invention illustrated, a type carrying frame enter an openmg'204 through the platen 19 so that the surface thereof. carrying the type 205' is pressed *againsteaeh pnnt' at the time "of the prina in'g"operi'iltij'f "to impress a, selected number on-fthat-printf The type ca ing frame s03 has a nandleorrerm soc rigidly secured 'theretoiat one end andthishandle is rigidly 'mouiited"at"'its other end on a rock shaft f207 that' is journalled in lugs 208 secured to the upper surface of the laten. A spring 209mounted 'onithe rock s aft 207 exerts a tension thereon to maintain the rock shaft in the posit-ion'illustratcd in Figure 2, and move' the frame 203 from the position forchanging the type as when the laterally extending portion 210 of the rock shaft 207 has beenlswungforwardly through 1.80 dej grees irom theposition in which illustrated Sure has rigidly. secured 't eneto'twos aced mounted thereon' a link 211 which is pivoted at'its other end as at 212m a curved arm'213'that' is pivoted .at 214 ton lug 215 secured to the I'upper surface of the section 5. A substantially U-shaped thrust member 216 has an en portion 217 projected 218 in the link 211 so that the body portion of the member 216 is disposed in contact with the arm 206 that is rigid with the type carrying frame 203 when the type carrym fram 203 is in the position illustrated in Figure 2. When the U-shaped member 216 is in the position shown in Fi re 10, the lug on the end of this member is not in contact with the type frame arm 206 and allows the type frame to functionproperly, but if it is desired to make the numberer inoperative, then the member 216 is moved forward tothe position' shown in Figure 2. This causes the lug to raise the arm 206 and prevents the type frame 203 from descending far enough into the opening 204 to make contact with the paper. Likewise, this same movement of the member 216 prevents contactof type with the ink pad 219 when the platen is m dotted position as shown in Figure 7. When the platen is raised, the type carrying frame 203 will be moved from the posit-ion illustrated in Figure 2 on account of the thrustof the rod 216 thereagainst into the positions illustrated in Figure 7 so that Ill-5 amazes when. the platen 19 is moved ainst the platen rest 29; 'the type2() willf ni'oy'e'd against an Iinkfpad 2llthat is disposed within a holder220 havingaficentral verti:

5 cal sha-ft221 rotatably mounted laterally extehdhigllugs-222 thatare with a bracket 223. The latter-is positioned on the upper surface of thesection 5, being secured. thereto at 224. A spring 225 mounted .on

the shaft 221 between thenpper ofthelngs 222 and the h'older'220 press'esriiflie latter 31p wardl .so that the type carrying frame and the inliing' pad 219 Wlll operativfelycontact with one another. A nut 22 6 or thelike carried at the endof theshaft 221 li'mitis the movement of. the lattefupwai tlly; I,

thatthe yr 'w s et'thaau nr ferent portions of 'theinkpad at SI ICCBSSI V G o'perations of'the'device;

It will be fibserve'd the cabinet 12 is I formed with entilafting openings '22? :and 228.

I claim! 1. A printing machineeoniprising a work support ng memberformed w th an opening therethrou'g'h, a platen arranged formove ment into position to covers'aid 9pen 1n"', 'a handle pivotally ,carried'by" tlie free and of said platen, normall" fie-energized means for projecting rays of iglit fupwardl gr through said opening, 'andfa switch operable com nected to said handle only when said platen is in closed position whereby said handle may be swung for acmatingaie light projecting eans," H

2. A printing r'na'chin'e comprising a work supporting member ,formed with an openin therethrough, a transparent plate mounted in said opening, means for holding a film negative on said work ,"supporting member in adjusted position relative to said transparent plate, means for moving a sheet into operative position with respect to said film negative, means for automatically releasing the sheet' when said last named means is moved into inoperative position, means for conveying the sheet into, 'a'compartment, means for'projecting raysoi light through said negative to occasion'tlie printing of the sensitized sheet. and nieanscarried by the said means -forino'vin" the sensitized sheet for energizing the lig 'tprojecting means, said last named means being operable only whenfs'aid means fol-moving the sensitized sheet is in a certain position with respect to saidfilm'negative. p

-3. A printing-machine comprising a table formed with anppeniffg theretlirough and -with 'a transparent 'plate" nioiihted Q in the p n g; nt e a s a r I h setite in adjusted-"position on said transparent; plate, platen" movable i'n'to' position Ito c'oveir said transparent plate, mean'"carried *b'y said platen fonclamping a sensitized sheet to the facethereofin position to operatively contact with the film negative, said means being operated automatically to release the sheet'w en the platen is moved out of operative position,-means for conveying the sheet into a, compartment, and means for projecting raysof light upwardly through said transparent glate to occasion the printing of the sensitize sheet when superposed on the film negative.

4. A printing machine comprising a table formed with'an opening therethrough and with a transparent plate mounted in the opening, means for holding a film negative in adjusted position on said transparent plate,a' platen movable into position to cover said transparent plate, means carriedby 'saidplat'en for; clamping a sensitized sheet to the facethereof in position to operatively contactuwith the film negative and for releasing the sheet when the platen is .moved out o operativeposition, normally de-energized means for projecting rays, of light upwardly. through said transparent plate,

means operable to occasion the energization of said ight rejecting means, and being a handle carrie by the free end of said platen and operably connected to said means only when the platen superposed on the transparent plate gwhereby the movement of said andle occasions the energization of the lightlprojecting means. I 5. printing machine comprising an inclined tablehaving an opening therethrough and asecond opening at a lower level than the first named o enin g, a transparent plate mounted in said st named opening, means for holding a film negative in adjusted position on saidtransparent plate, means operable to' project rays of light upwardly "throu h said transparent sheet, a platen mova le into position to cover said transparent plate, and means carried by said platen for clamping a sensitized sheet to the face thereof in position to o eratively contact with the film negative n hen the platen is superposed on the transparent plate and for releasing the printed sheet when the platen is moved away from the transparentplate, so that the printed sheet will move along the inclined table and fall through the sccondnamed o ening in the table, means for releasing sai film negative holding means, and a door for sald second named opening adapted to close when said last named means s actuated.

6. A printing machme com rising a work supporting member formed with an openm therethrongh, a transparent plate mounte insaid openmg, means for holding a film negative onsa d work, supporting member in ad usted position relative to sand translparent plate, means operable to project rays of light" upwardly through said transparent plate, a platen movable into position to cover said transparent plate, means carried bysaid platen for clamping a sensitized sheet to the surface of the platen contacting the transparent plate, and means supported on said work supporting member relative to the transparent plate for determining the size of the exposed portion of the sensitizedsheet superposed thereon when the platen is oper ated and for indicatin the S128 on' a 'scale, means for automatica 1y disengaging said sheet when said platen is swung into inoperative position, a compartment, a door adapted to guide the released sheet into'the compartment, and means for releasin the filnuiega tive, said last named 'meansc o singsaid doo'r when operated. A

7, A' printing machine comprising a work supporting member formed w th anopqnm therethrough, a transparent late mounte in said opening, means for" olding a film negativeon said work supporting member in adjusted position relative to saidtransparent plate, means operable 'to proj'e trays of light upwardly through said transparent plate, a platen movable into posit1on to cover said transparent plate, means carried by said platen for clamping a sensltized sheet to the surface of the platen cpntacting the transparent plate, me'ans coverin marginal portions of the transparent p ate to determine the size of the exposed portion of the sensitized print, and for indicating the size on a scale and means for mdv'ably supporting the margin defining means relative.

to the transparent plate so that 'thesizepf the opening defined thereby'may bevarl ed at will, means for automatically disengaging said sheet when said platen is swung into inoperative position, a compartment, a door adapted to guide the released sheet into the compartment, and means for releasing the film negative, said last named means closing said door when operated. h l

8. In a device of the type described, a frame, a platen pivotally carried by said frame, said platen adapted to be swung from a horizontal positioninto a vertical position, paper holding clips disposed on the outer edge of said platen and on a radially extendin edge with respect to thepivotal axis of t e platen, said clips being bent insupporting frame, a platen auxiliary trigger carried by said s'ur'faoe of said platen at points adjacent to the, edge nearest the ivotal axis of said platen, an auxiliary cl1 carried by. said second named framean being adapted to yieldingly engage: with the inner surface of said platen ad aoentlto, a radially extendmg side thereof, and means ,forl releasing sa d cllps from sai ;platen,'said lastnamed chp'beingj'adapted. also swing out of alinement wit the inner'surface of 'said platen whe ilele 'sed l printing" machine comprising a work supporting member, means. for holding a; film negative to said member, a platen isposed beflrriedby the 'm'emberfor normally clampthe film negative ,to the surface underlying ,th same, ,ianauxil iary clamping clip, me l ld y, he e ber r supp r the auxiliary clamping. clip 'so that the latter 'w'illlbe normally maintained. in either oper' ati'veor inoperative position, and-means carried by the mern er and operable to -niove said first named clip end said auxiliary clip when the latter is in operative position to occasionthe' released the film negative.

12. ,In a device of the type described,l,a supportin board havingan opening therein, a platen a apted to be swung over said .'open- -1ng,tapered retaining clips carried by said platen, means; actuated by the swinging of said platen for moving said clips into in- 0, erative position. immediately when said p aten is.,m0ved away .from said opening, and means carried by said boardand being adapted ,to move said, clips .into inoperative position when said. platen is moved into its furthestopen position. v

13, In a device of the typ'e described, a

supporting board, ,a' platen hinged to. said adapted to hold a piece of paper to the inner surface of, said laten, a trigger carri ed by said platen an being adapted to instantly swing said clips into inoperative position when said platenvis swung, and an oardand being adapted to engage, with said clips to throwsaid clips into inoperative position when said platen is swung in to its furthest p resi e. A

board,clips carriedbysaid platenand being 14. In a device of the type described, :1 plates, bolts slidably disposed in said openbase, two plates havin spring qualities, 2. ings, and springs mounted on the lower ends platen hinged to said p ates, screws for rigof said bolts for yieldingly holding the idly securing the outer ends of said plates plates against the upper surface of the base. 10

6 to said base, said plates having openings therein adjacent to the other ends of the PAUL ELGIN RIDINGS.

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