US1336989A

US1336989A - Printing device

Info

Publication number: US1336989A
Application number: US147837A
Authority: US
Inventors: Lester A Stanley
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-02-10
Filing date: 1917-02-10
Publication date: 1920-04-13
Anticipated expiration: 1937-04-13

Description

Patented Apr. 13, 1920.

6 SHEETS-SHEET I.

L. A. STANLEY.

PRINTING DEVICE.

APPLICATION FILED FEB. I0, I9I7. 1,336,989.

L. A. STANLEY.

PRINTING DEVICE.

APPLICATION FILED FEB. Iol I9I7.

Patented Apr. 13, 1920.

6 SHEETS-SHEET 2.

L. A. STANLEY.

PRINTING DEVICE.

APPLIc/moN msn FEB. lo. 1917.

Patented Apr. 13, 1920.

6 SHEETS-SHEET 3.

f III I IIIIIIIIIIII da 5?/ L. A. STANLEY.

PRINTING DEVICE.

APPLICATION FlLED FEB. I0. 1917.

1,336,989. Patented Apr. 13, 1920.

6 SHEETS-SHEET 4.

/50 /Q MM A449 /4/ L. A. STANLEY.

PRINTING DEVICE.

APPLICATION FILED IEB. I0. I9I7.

1,336,989. Patented Apr. 13, 1920.

e SHEETS-SHEET 5. 2

nz 5 n $9.15.

Al.. A. STANLEY.

PRINTING DEVICE. APPLICATION EILED FEB. I0. 1917.

PatentedvApr. 13, 1920.

6 SHEETS-SHEET 6.

LESTER A. STANLEY, OF WASHINGTON, DISTRICT 0F COLUMBIA.

PRINTING DEVICE.

Specicaton of Letters Patent.

Patented Apr. 13, 1920.

Application led February 10. 1917. Serial No. 147.837.

To ZZ whom vit may con/fern Be it known that I. LESTER A. STANLEY. a citizen of the Fnited States. and a resident of the citT of 'ashington. in the District of Columbia. have invented a certain new and useful Improvement in Printing Devices. of which the following is a specification.

)I v invention relates to photographic vprinting devices, and it consists in the combinations. constructions and arrangements herein described and claimed.

An object of m v invention is to provide a device b v means of which a number of prints ma v be automaticallv made from a single negative after the machine is started. said prints being arranged in rows and columns on a single plate.

A further object is to provide a device which, will space the prints symmetrically on the sensitized plate.

A further object is to provide an automatic printing device which ma v be also operated manually if desired.

A further object is to provide means for automaticallyv returning the printing mechanism to its initial position when certain indicating devices have been manuallyr reset at the end of the printing operation.

@ther objects and advantages will appear in the following specification. and the novel features of the invention will be particularlgr pointed out in the appended claims.

M v invention is illustrated in the accompanying drawings which form a part of the application. and in which:

Figure 1 is a longitudinal section through the device, along the line 1 1 of Fig. 2.

Fig. 2 is a transverse section on the line 2 2 of Fig. 1.

Fig. 3 is a plan view of the holder for the sensitized plate.

Fig. 4 is an enlarged section on the line -1--4 of Fig. 2.

Fig. 5 is a section on Fig. 4.

Fig. 6 is an enlarged section on the line 6 6 of Fig. 2.

Fig. 7 is a section through a switch or circuit closing device.

Fig. 8 is a face view o a step-b v-step switch.

Fig. 9 is an end view of the switch shown in Fig. 8.

the line 5 5 of Fig. 10 is a sectional view of a time-retarded solenoid.

Fig. 11 is a detail view showing the contacts controlled b v the eccentric shaft.

Fig. 12 is an enlarged section on the line 12 12 of Fig. 2.

Fig. 13 is a detail sectional view on the line 13 13 of Fig. 1.

Fig. 14 is a detail sectional view on the line 14- 1-1 of Fig. 1.

Fig. 15 is a diagrammatic-al view showing the successive printing positions. f

Fig. 16 is a face view of a double-acting switch. Y

Fig. 1T is a sectional view of the carriage.

Fig. 18 is a sectional view of one of the transmission gearings.

Fig. 19 is a diagrammatical view of the electrical circuits.

Fig. 20 is a section on the line 2.0 20 of Fig. 18'.

Fig. 21 is a section on the line 21 21 of Fig. 20. and

Fig. 22 is a section through the base of the carriage and the movable frame at right angles to Fig. 2.

In carrying out my invention I provide a box or casing 1. having a cover portion 2. which is hinged at 3. and whose front portion extends downwardly. (see Fig. 2.) where it rests on the casing 1. The latter is provided with a lug 4 which is slotted to receive a screw bolt 5. pivotally secured to the cover portion at 6. A thumb nut 7 is provided b v means of which the cover portion 2 ma v be fastened securely. In practice as man v of these fastening devices as are necessary ma v be used.

The holder for the sensitized plate is shown in Figs. 1. 2 and 3. It consists of a backing plate 8. *preferably of metal. having a laterall)v extending flange 9 at one end. A rectangular opening 10 is provided in the plate 8 adjacent to the flange 9. Grooves 11 are provided in the plate at the ends of the opening 10. these grooves being at right angles to the flange 9. A slidable metal strip 12 has tongues 13 which enter the grooves 11 f so that the strip 12 ma v slide in the opening 10. A clamping plate 14 is provided having openings 15 through which ears 16. carried b v the strip 12. project. Hinged to the ears 16 are screw bolts 17 which are adapted 'to enter slots 18 in the flange 9, thumb nuts 19 being provided to tighten up on the screw bolts. At the opposite end of the holder is a clamping plate 20. Thumb screws 21 clamp the sensitized plate 22 securely at both ends. lWhen the Vsensitized plate is made of metal it may be stretched flat by tightening up on 'the nuts 19. The backing plate 8 is secured to the cover 2 by means of the screws 23.

Referring now particularly to Fig. 2, it will be seen that the casing 1 has portions 24 extending inwardly from opposite sides. These portions have V shaped grooves 25 near their inner edges which run longitudinally with respect to the edges. A travelinfr frame 26 has V shaped runners 2T whic slide in the grooves so as to permit the frame to travel back and forth. As will be seen from Fig. 2, this frame 26 extends above and below the supports 24.

Journaled in the ends of the slidable frame 26, are the reduced end portions of a screw shaft 28 which passes through the base 29 of a slidable carriage 30. As will be seen from Fig. 22 the base has V shaped runners 31, arranged to slide in V shaped grooves 32 in the walls of the frame 26 in a direction at right angles to the movement of the frame itself. The movement of the carriage is effected by revolving the screw shaft 28, and by reversing the rotation of the shaft the carriafre will be moved in the reverse direction. shaft E is also journaled in the ends of the frame 26. The main portion of the shaft E is enlarged and is preferably cylindrical, but is eccentric with respect to its journaled end portions. It passes freely through the carriage 30 itself but is always in engagement with the adjustable end 33 of a plunger 33, (see Fig. 1T) which is borne by the carriage and which is raised or lowered as the eccentric shaft E is turned by the means hereinafter described. The adjustable end Y or head 33a may be turned so as to vary the effective length of the plunger, a lock nut 33') being provided to retain the head in its adjusted position. A spiral spring 34 bears on a collar 33K carried by the plunger so as to keep the head 33a in engagement with the shaft E.

The plunger 33 has a bore of square or other angular cross section extending downwardly. and at the bottom of this bore is a spring 33X. A second plunger 35 is slid v,bly disposed in the bore and rests on the sp ing 33". A feather 33Z keeps the plunger 33 from turning. The upper end of the plunger 35 bears a light tight chamber 36, in which is disposed an electric light L. The top of the chamber 36 is covered by a plate of glass 37, and the negative 38 surmounts this glass plate. being held in place by adjustable clamps 39. The plunger 35 fits the bore in the plunger 33 snugly and the plunger33 is provided with a feather' 33z to prevent rotative movement of the negative. 1t will be seen that when the eccentric shaft E is turned so as to raise the plunger 33 the negative will be pressed against the sensitized plate 22. The spring 33y holds the negative firmly in contact with the sensitized plate but will prevent the pressure from breaking the negative. When the shaft E is turned, the negative will be withdrawn from the plate 22 so as to permit the carriage 30 to be shifted to another printing position. One end of the spring 33y may be secured to the end of the plunger 35 and the other end to the plunger 33. so that the negative will be positively drawn away from the plate 22 by the spring 34. The pressure may be varied by means of the screw head 33a.

I may state here that in the specific form of the invention disclosed herein I make use of three separate power devices for drivin the screw shaft 28, the eccentric shaft and another screw shaft 109 (which moves the slidable frame 26) respectively. Each power device consists of a motor, a speedreducing gearing and a transmission mechanism. ince the power devices are precisely alike, a description of one will suffice for all. The motor for driving the shaft E is shown in Figs. 1 and 2 at M1 on a platform 40 carried by the slidable frame 26. The motor shaft has a pinion 42 meshing with a gear 43 on a shaft 44 bearing a worm 45 which in turn meshes with a worm gear 46 on the drive shaft 47 of the transmission gearing T1.

The specific form of the transmission forms no part of the present invention, since any suitable form having a drive shaft with means for imparting direct or reverse motion to a driven shaft through the shifting of a clutch lever may be used. The means by which the clutch lever is actuated however is a feature of the invention. The transmission is best illustrated in Fig. 18 and includes the drive shaft 47 mentioned which is journaled in the plate 48, and which has at its inner end an integral cylindrical head 49 having a bore 50 extending inwardly from the end, into which the end of the driven shaft is disposed. A gear 51 is loosely mounted on the head 49, one

side of the gear having clutch members 52 adapted to engage clutch members 53 on a slidable collar 54 which is feathered at 55 to slide longitudinally with respect to the head 49 but to rotate with it. The collar 54 has clutch members 56 adapted to engage the clutch members of a collar 57 which is fixed on the driven shaft 28. An auxiliary shaft 58 has a gear 59 which meshes with the loose gear 51. It also bears a gear 60 which meshes with an idler 61, this idler in turn meshing with a gear 62 fixed on the driven shaft. It is obvious that either the drive or the driven shaft may serve the purpose of the other shaft. The means for shifting the clutch collar 51 is shown in Figs. 20 and 21. It consists of a pair of'solenoids R9 and R10 respectively, vvhose cores are joined together, both being connected to a rock arm 68 by a pin and slot connection. The arm 63 bears an arm 61 whichl fits in a groove in the clutch collar 5l. Then the solenoid R1" is energized the arm 63 will be moved into the position shown in Figs. 1 and 18, thusbringing the clutch 54 into engagement with the gear 51 and imparting to the driven shaft 2h' a movement in a reverse direction from that of the drive shaft flT, through the medium of the gearing on the auxiliary shaft 58. Then the solenoid R9 is energized the shaft 28 will be driven in the same direction as the drive shaft T by means of the fixed collar 5T. The gears are so arranged that the forvvard and reverse speeds are the same. When neither of the solenoids is energized the arm 63- will be held by the

springs

65 and 66 in a central position. This will hold the clutch 54: in a neutral position so that no movement will be imparted to the driven shaft.

The transmission gearing described above is duplicated for several portions of the apparatus and these I have indicated generally b v the reference characters T1. T2, T3, T4 and T5.

The shaft 2 8, as has been stated before, is for the purpose of y moving the carriage which bears the' negative from one printing positiongtol v.the next. The prolonged reduced yportion of this shaft constitutes the driven shaft of the transmission gearing.r T2 which is operated .-bv the motor M2. The latter Ais carried on a platform l1 supported b v the slidable frame '26. 'hen the end of the roxv or column of prints thus made is reached. the frame 26 is moved so as to bring the carriage to the next row or column andv the jmovement of the carriage is reversed.'v The` carriage therefore. takes the path-shownv in Fig. 15, the printing positions beingindicated at P. The means for stopping the carriage in its movement from one printing position to the next. inthe same row or columnis as follows. A gear 6T on thescrew shaft Q8 is in lnesh with a gear 68 on "a drive shaft 69 of a transmission mechanism T4r of the type alread)v described. The driven shaft T0 has a gear T1 in lnesh with a gear T2 on a screvv shaft T3. As will be seen'fromFig, 5. the shaft T3 has an unthreaded portion provided with an integral collar T-f. nutT is arranged to travel along the shaft T3 a\va v from the collar T4, when the shaft is'turned in one direction, and toivard the collar when it is turned in the opposite direction. .'It will be observed,

however, that there is an unthreaded portion of the shaft T3 on the opposite side of the collar T1 from the gear T2 which the nut will reach in its movement toward the collar. when this position is reached the nut will stop. having cleared the threads, even when the shaft keeps on turning. The nut bears an insulated arm T6 arranged to close spring contacts Av1 carried by a block TT rigidly secured to casing of the transmission gearing T4. when the nut is in the position shovvn in Fig. 5 it is under spring tension in holding the contacts v1 closed so that on the first movement of the shaft T3 in the opposite direction the nut will be forced onto the threaded position and ivill be caused to move awa)y from the contacts therebjv permitting them to separate. The nut is recessed so as to fit over the collar ivhich centers the nutivhen it is on the unthreaded portion and insures its immediate start when the motion of the shaft is such as to move the nut avvav from the collar. The nut has a lug T5a having an opening arranged to receive a rod T8 by means of which the nut is prevented from turning.

The screw shaft T3 is jonrnaled at one end in a plate T9. A second screw shaft is journaled at one end in the plate T9 and at the other in the casing of the transmission T4. Disposed on the shaft 80 is a travcling contact bearing nut or block 81 provided vvith spring -contacts z". The block 81, (see Fig. 6) is preferabl)v madefof insulating material having embedded therein a. metal sleeve 8'2. threaded internall)Y to receive the screw shaft 80. The spring contacts are in electrical'connection with the arms 83 which bear against rods 8l which are suitably insulated at their ends. .The

members

83 and 84 serve the double function of being means for preventing the turning of the block 81 as the screvv 80 is turned and also as conductors which ma v be used instead of attaching flexible cables to the spring contacts.

The arm T6 is caused to travel back and forth and engages the contacts r1 and r2 which control the svvitch that cuts off or on the current of thel motor M2 and thus starts or stops Ithe carriage 30 as vill be explained later. By setting the block 81 and its contacts r2 at predetermined distances from the contacts r1, the desired distance between the printing positions majv be secured. The means b v which the block 81 is adjusted or moved is as follows. A gear 85 on the end of the` shaft 80 is in mesh with a gear 86 on a shaft 8T (see Fig. 13) which bears a Vgear S8 in mesh with a gear 89 on a shaft 90. The shaft 90 projects through the end of the traveling frame Q6 and bears a handle 91 which is arranged to move over a dial 92 having holes into which the spring pressed locking member 93 can enter so as to lock the shaft 90 in any position in which it is set. It is obvious that by moving the crank handle 91 the screw shaft 80 may be turned to cause 'the contact bearing block 81 to move to any desired position. The dial 92 is provided with any suitable scale.

It is convenient in making prints to be able to locate the center of those prints which are at the ends of the row or column at any desired distance from the edge of the sensitized plate; in other words, to leave as large a margin as desired. To accomplish this I provide a screw shaft 94 upon which are located two contact bearing nuts or blocks 95 and 96 respectively. The screw shaft 94 is threaded in opposite directions from its center, so that when the shaft is turned the blocks approach each other or recede from each other according to the direction in which the shaft is turned. The shaft 94 is of the same size as the screw shaft 28 and has the same number of threads to the inch. When the carriage 30 is in its initial position, 'z'. e, as far to the right in F ig. as

it can go, for reasons explained later, an insulating lug 97 engages and closes the contacts r1 carried by the block 96. The opposite end of the screw shaft 94 bears a wide gear 98, while the screw shaft 28 bears a gear 99 of the same diameter but of less width: Anintermediate gear 100 is rotatably carried on a shaft 101 and is in constant mesh with the gear 98. The shaft 101 is slidably mounted in the end of the frame 26 and may be moved to bring the gear 100 into mesh with the gear 99 by grasping a handle 102 and pulling outwardly. The handle 102 has a spring locking pin 103 arranged to enter holes in a dial plate 104. With the

gears

98,99 and 100 in mesh the handle is rotated so as to cause the

blocks

95 and 96 to approach each other any given distance. The carriage 30 will be moved toward the center of the sensitized plate the same distance, the contacts r1 moving with the carriage and still remaining closed.

The automatic means by which the eccentric shaft E is turned to press the negative against the sensitized plate includes the electric motor M1 which operates the transmission gearing T1 of the type already described. This gearing is connected by means of a shaft 105 bearing a gear 106 meshing with a gear 107 on the shaft E (see Fig. 2).

The frame 26 is provided with a downwardly extending arm 108 which is threaded to receive a screw shaft 109 which is journaled at one end of the casing 1 and at the other end in ,the wall of the transmission gearing T3. motor M3 is connected with the transmission gearing and drives the screw shaft 109 in the mannerhereinafter described. The means for stopping the motor M3 after a predetermined movement of the frame 26 is as follows. The screw shaft 109 is connected with a transmission gearing T5 by means of which motion is transmitted to a screw shaft 110. This bears a traveling nut or block 111 like the block 7 5 (see Figs. 2 and 5) which has an insulated arm 112 arranged to engage and close contacts l carried by a fixed block 113 and also the contacts m2 carried by the adjustable nut or block 114 on the screw shaft 115. The block 115 has arms 116 arranged to engage rods 117 to keep the nut from turning, and also to serve as conductors. The means for stopping the motor M3 is precisely the same as that set forth in detail for stopping the motor M2 with the exception that the shaft 115 is extended through the casing 1 and is provided with a crank handle 118 having a spring pin 119 arranged to enter holes in a dial 120. The position of the block 114 is determined by rotating the handle 118 a definite number of times or to a given position on thedial. The pin 119 locks the shaft 115 in os1tion.

he initial position of the movable frame 26 may be set at any desired place by turning the screw shaft 109 manually. This can be done without interfering in any way with the subsequent automatic driving of the screw shaft because of the fact that the clutches of the transmission gearings T3 and T5 are in their neutral or disconnected positions until their solenoids are energized. A removable crank handle 121 is applied to the projecting squared end of the shaft 109 and the shaft may be turned luntil the dial 122 indicates the desired position, after which the handle is preferably removed. The means for automatically stopping the printing operation at any desired position, that is to say after a predetermined number of rows or columns have been printed, comprises a screw shaft 123 which is journaled in the opposite ends of the casing. One end is provided with a crank handle 124 and dial 125 like that shown in Fig. 1. The other end is threaded as far as desired and is provided with a traveling switch of the form shown in Fig. 7. This switch has a casing H the bottom of which is threaded to receive the screw shaft. An arm 127 is provided which receives a rod 128 to keep the casing from turning. A push rod h extends through the casing from one side -to the other. The rod 7L has a spring pressed pawl 130 which engages a ratchet 131 on a shaft 132. Secured to the ratchet is a square lug 133 upon which a leaf spring 134 presses. A disk 135 is provided with insulating lugs 136. lVhen the rod z of the switch H is engaged by the lug 138 on the forwardly moving frame 26- (see Fig. 1) it is pushed inwardly, turning the ratchet-'131. The spring 134 at first tends to resist this movement but after the lug 132 has passed its dotted line position in Fig.

7 the

spring

134,4 aided by a spring 139, gives the ratchet a sudden throw causing the disk to bring one of the studs past the contacts f7' momentarily closing them. The closing of the contacts j operates a switch which controls the circuit of the motor MF' thereby stopping the latter. ow when the crank handle is reversed to bring the switch back to its normal. position at the end of the casing the projecting end of the rod h shown in dotted lines in Fig. 7 will engage the casing. wall and will be pushed back into its operative position, the pawl 130 riding over the teeth of the ratchet. When the switch H reaches its normal position the insulating arm 137 closes the contacts lc. Any other suitable form of switch for effecting a momentary closure of the contacts j might be used in lieu of that shown.

ln Fig. 19 which shows the circuit connet-tions, the switches A, B, C, F and are of the step-by-step type shown in Figs. 8 and 9. A plate 141 bears a magnet 142 whose armature 143 is at the end of a lever 144 which is normally retracted by means of a spring 145. The lever bears a pawl 146 which engages a ratchet 147 having an arm 148 which engages contacts 149 carried by a plate 150, a stop pawl 151 being provided. vhen the magnet is energized the arm is stepped around to the next contact. and when the ycircuit is broken the armature resumes its normal position. Any other suitable step-by-step switch might be used in lieu of that shown.

The switches A, B and C each has a double ring of contacts, the contacts designated by the same reference character being electrically7 connected together. This is merely for the purpose of providing a short instead of a long throw of the switch arm. The switch D takes a step each time the magnet d is energized and each time it is denergized. rI`his is effected by providing an arrangement like that shown in Fig. 16 in which the lever arm 152 pivoted at 152x. has two

pawls

153 and 154 arranged to engage the

ratchets

155 and 156 respectively so that when the magnet 157 is energized the ratchet 155 is turned and when the magnet is denergized and the lever is retracted by the spring the ratchet 156 is turned. The ratchet 156 is on a shaft 158 bearing a gear 159 in mesh with a gear 160 loosely mounted on a shaft 161 which bears the contact arm 162 arranged to engage contacts 163. The ratchet 155 isA loosely mounted on the shaft 161 and has a pawl 164 arranged to engage a ratchet 165 fast on the shaft 161. The gear 160 has a pawl 166 also engaging the ratchet 165. It will thus be seen that each upward and each downward movement of the lever will actuate the shaft 161 so as to step the arm 162 to the next contact.

In Fig. 10 I have shown a time retarded solenoid S which controls the time that the lamp L is lighted. It consists of a coil 167 whose core 168 has a plun er head 169 disposed in a cylinder 170. he cylinder has an'opening 171 into which the needle valve 172 extends. The core tits loosely in the coil so that when the latter is denergized it descends by gravity. lVhen the coil is energized it pulls up slowly, the valve 172 regulating the escape of air and hence the time of movement of the core. The latter has an insulating arm 173 arranged to open the various parts'of the device the operation thereof may be readily understood.

Let us assume that a sensitized plateA 24 inches wide by 36 inches long is to have designs printed thereon, the centers of the designs of the outer rows being 4 inches from the side edges of the plate and the centers of the designs of the outer columns being 6 inches from the ends of the plate, the columns running the shorter dimension of the plate and the rows the longer. Assume that the distance between centers of the designs ot' any column is 4 inches and that the columns are 6 inches apart. There will be five designs in each column and five columns. The normal or initial positions of the various parts of the apparatus are those shown in Fig. 19. The switch Y. is open. The contacts at r1, e1, c1, w1, t2, and p2 are closed. All other contacts are open. The arm gx is on point ge of the switch G. The arm 0X is on point c1 of the switch c. The arm a* is on points a6 and a7 of switch A. The arm bx is on points b2 and b3 of switch B. The arm (ZX is on point d1 of switch D. The arm fx is on point f1 ofV switch F.

The operator first loosens the set screws 174 and 175 (see Fig. 2) on the hubs of the worm gears 176 and 177 respectively so that the shafts 28 and E may turn freely. Now by means of the handle 102 he moves the carriage 30 inwardly four inches as noted on the dial 104. The arm 180 on the carriage 30, see Fig. 2, which holds the contacts p2 closed when the carriage is in its initial position7 permits the contacts p1 to close and the contact p2 to open. The contact blocks 95 and 96 will also be moved inwardly. When the operator lets go of the handle 102 a 'spring 178, (seeFigs. 1 and 14) will take the gear 100 out of mesh with the gear 99 so that the shaft 28 will rotate freely when the motor M2 is energized. Now by means of the handle 121, (see Fig. 1) he moves the frame 26 six inches as noted by the dial 122, afterward removing the handle. The movement of the lug 18,1 on

the frame 26, (see F ig. 1) away from the spring contacts closes the contacts t1 and opens the contacts 152. By means of the handle 124 he moves the switch H six inches inwardly as noted by the dial 125. By means of the handle 91 the contacts 'U2 are set to space the designs four inches apart as noted by the dial 92 and by means of the handle 118 he moves the contacts x2 to space the columnsix inches apart as noted by the dial 118. lt is immaterial as to the order of these operations.

The switch Y is now closed. The arm gx of the switch G is moved by means of the key 179, (see Fig. 1) from gG to g1. This arm first engages the elongated contact g7 before it reaches g1 whereupon a circuit is established from wire 1', through 3', arm g", contact gl, wire 8', wire 11'` wire 111, contacts s2, wire 4', contacts e1, 5', contacts o1, 6', core a of step switch A, and by wire 7' to lead wire 21. Arm a1 is moved by step switch to points a and a2. Current also flows from the wire 11 through coil of step switch B, 9', contacts w1, 10', contacts r1 to lead 2. The armv b1 is thereupon moved from points 52-63 to point b1.

lVhen the arm gX reaches the contact g1 of the switch G, current flows from wire 1 through 3', arm g1, g1., 12', arm a1 to a through 13', 14', motor M1 and 15' to wire 2'. It also iows from a2 through 16', con` trolling transmission T1 and wire' 17' to wire 2'.

The motor M1 starts up and turns eccentric shaft E breaking contact at e1 and pressing plunger 33 upwardly. When e1 is broken, coil a is denergized and its armature drops back. When arm e1 reaches contacts c2 it closes them and causes the coil a to become energized, since contacts e1 and e2 are in multiple. Step switch A now moves arm aX to a3, breaking the motor circuit. Current now flows from a2 through 18', lamp L, 19', solenoid S, and 2O to wire 2. The lamp is lighted and the core of the solenoid slowly pulls up. After a predetermined time it breaks the contacts at r2 and since the latter contacts are in series with the contacts e2 the energizing circuit of the coil a is broken and its armature drops back.

Further movement of the solenoid core causes the closing of the contacts at S1, thus energizing the coil a and the arm a1 is stepped around to a1 a5, breaking the light circuit. Current now fiows from a4 through wire 21', reversing coil R2, controlling transmission T1, and by wire 17 to wire 2'. also flows from a5 through 14', M1, and to wire 2', by way of wire 15'. The motor M1 starts up but the eccentric shaft E is reversed. lts first movement breaks the circuit of coil a. whose armature drops back. The movement of the shaft E continues assenso until the arm e1 again closes the contacts at e1, when the arm a1 will `,be moved to the contacts a a1, stopping the motor.

Current now flows from a through wire 22', arm 0X, to one of the contacts c1 (all ci these contacts c1 being connected together by a common conductor) thence by wire 23', through coil R2, controlling transmission T2, and by wire 17"to wire 2'. Current also flows from a7 by wire 24 to arm 3x1 of step switch B, then through b1 (all of the contacts b1 are connected together by common conductor) wire 25', motor M2, and by wire 2G' to wire 2'. The coil df of the step switch D being in multiple with the motor M2, is energized and the arm (1 is moved from Z1 to d2. The motor M2 starts up, moving the carriage forwardly. The engagement of the contact Z2 by the arm (ZX causes current to flow from wire 1' through wire 27', arm d1, (Z1, and by wire 28' through coil R2 of transmission T1 and wire 29' to wire 2'. The coil R3 controls the clutch which causes the arm 76 (see Fig. 2`) to move forwardly and at the first movement of this arm the spring contacts at n1 open, thereby causing the coil a to become denergized and its armature to drop back. The first movement of the carriage also breaks the energizing circuit ci the coil Z) of the step switch B at the contacts r1 and its armature falls back. The carriage continues to move forward and so does the arm 76 until finally the latter engages thespring contacts at r2 and closes them, whereupon the coil a is energized` since the contacts c1 and c2 are in multiple, the arm a1 steps around to the points a1 a2. breaking the motoi' circuit and stopping the motor M2 and hence the screw shaft 28 which drives the carriage 30. -Since the arm 'TG is driven by the shaft 28 through the transmission T1 it also stops. It will thus be seen how the adjustment or positioning of the spring contacts c1 and n2 a predetermined distance apart determines the movement of the carriage from one printing position to the next.

As has been stated before,` the step switch D steps its arm (ZX around whencvcr the circuit of the motor M2 is either made or broken. W7hen the circuit of motor M2 is broken, the arm i1 moves tothe point (Z1 which breaks the circuit of the coil R1. T hc arm ax is now on the points or contacts 1 L2 and the motor which operates the eccentric shaft E is energized over the circuit already traced. The motor is stopped and the-light L switched on as already described: the light is cut off after a predetermined time, and the shaft E is reversed so as to permit the negative to bc withdrawn from engagement with the sensitized plate so that the movement of the carriage can take place.

wire 38 towire 2.

Now when the motor l M2 is energized, z. c. when the arm ax is shifted to the contacts a6 a7 in the manner already described and the motor moves the carriage forward, the contact closing arm 76 will be moved in the opposite direction from its initial movement because of the fact that current for driving motor M2 steps the switch arm fl to the contact d". (The arm (ZX of the switch D in passing from d3 to d* does not engage the contact d5, this contact being engaged momentarily7 by an insulated arm as explained later.) This establishes a circuit from wire 1 through 27. arln ab", d?. 30. reversing coil R* of transmission T 31', to wire 2. The energization of coil R4 causes the contact closing arm 76 to move in the direction of the contacts v1. At its rst movement the contacts at r2 are broken causing the armature of the coil a to retract, but when it reaches the contacts v1 it closes the actuating circuit of the coil a and steps the arm af around. causing the stopping of the motor M2 with the carriage in printing position. This c vcle of operations will 'be continued until the carriage engages the contacts -12 and closes them. These contacts. it may be stated. are set just within the' desired movement of the carriage in order to insure their being closed by the carriage prior to the closing of one of the sets of contacts r1 or r2 by thetraveling Contact closing arm 76. The closing of the contacts at r2 will cause the energization of the coil b. the energizing circuit being from wire l1 through coil b. 9. contacts m1, 10. 32. contacts 112 and by wire 33 to wire 2'. The arm bxkwill now be moved to contacts b2. and b3. p

In the meantime the printing operation will continue while the carriage is at the limit of its movement from one side of the plate to the other.

After the light has been extinguished and the negative retracted the arm ax is stepped around to the contacts a6 a7 as explained heretofore. Current will then flow from a? through 24. arm b". b3. 34. 36. motor M3. and by wire 37 to wire 2. Also b v wire 35 through coil R5 of transmission T3 and The motor M3 will start up in a forward direction and will move the slidable frame which bears the carriage in a direction at right angles to the movement of the carriage. At the same time the switch arm fx will be moved from the point f1 to f2 and the coil RT of the transmission T5 will be energized. current flowing from wire 1 through 39. arm f". Contact f2. wire 40. coil R7 and by wire -ll to wire 2. The energization of the clutch coil RT will cause the traveling contact closing arm 112 to move toward the spring contacts fri. The first movement of the arm will break the circuit of the coil b at w1,

but the circuit will be closedagain when the arm reaches the contacts .'02, the contacts :r1 and :c2 being in multiple. and the motor M3 will stop when the arm bx is shifted b v the coil off from the contacts b2 and b3. lt will be noted that the motor circuit is through the contact b3. The contact b2 is in a circuit from the arm b. through b2. 42', coil c of the step switch C and b v wire 43 to wire 2. This steps the arm c-x to the contact c2. lVhen the arm bx reaches the Contact b1 then the motor M2 will be energized over the circuit already traced. but the energization of the reversing coil R1" will occur because the arm cx is on the contact c2, the current flowing from the contact a6 by wire 22 to arm c. thence b v contact 02 through wire 44. coil R1", and by wire 17 to wire 2.

The carriage will now reverse its movement breaking the energizing circuit of the coil a at @2 and will be brought to a stop when the traveling contact closing arm 76 closes the circuit again at v1 since the arm ax will then step around to contact a3. As the carriage retraces itsv movement the printing operations `will be carried out at each position of rest and these positions will be in alinement in directions at right angles to the line of movement of the carriage. Then the opposite side of the device is reached the carriage will again engage the contacts r1 and closef them. thus energizing the coil b and Steppin the arm bx around to the contacts b2 b3. hemotor M3 will be energized to move the frame forward and the coil c will 4be energized to move the arm cx so that current will flow through the coil R9 to cause the carriage to move forwardly when the motor M2 is again brought into play.

The course of the carriage vbearing the negativev is shown diagrammatically in Fig. 15.

When the printing operation has been carried out in the last row and the carriage bearing frame is moved forward it comes into engagement with vthe arm h of the switch H and causes it to suddenly move, this switch being of the snap type. One of the switch arms 71.1 in its movement, momentarily closes the contacts atj and an impulse will be 'sent through the coil gl. the current flowing from wire 1.. through 45. contacts y'. 46,47 coil g.48 and by wire 7 to wire 2. The arm gx is now moved to (72 and this breaks the actuating circuit of the motor M3. stopping it. lt will be noted that when this.' circuit is broken the arm ax rests on the contacts n.6 a?. the arm bX on the contacts b2 and b3. and the arm cx either on the contact c1 or contacts (-2 depending on which direction the carriage was last traveling when the final printing operation was completed.

- ing outwardly on the handle itself.

The movement or" the arm it of the switch H closes contacts at fix which causes the sounding of the audible signal 126 to indicate that the printing operation has been completed.

The operator now pulls out the spring locking pin 103 c-f the handle 102 from the dial 104 and rotates the handle backward as far as it will go without, however, pull- This will rotate the shaft 94 but not the shaft 28 since its gear 10@ is only in mesh with the gear 98 'which is wider than the gear 99 on the screw shaft. The

blocks

95 and 96, bearing the contacts r2 and r1 respectively, will retract te their initial positions or until the block 96 engages the collar 136. The contacts at 'w will be closed by the block 95. The arm 124 is also unlocked and rotated backwardly as far as-it will go. The resetting of the arm 124, moves the switch H back so that its stem It engages the frame 1, and is pushed forwardly into position to be again engaged by the carriage bearing frame when another plate is being printed. The re, setting of the arm 124 also closes the contacts at 7c. Current now liows from wire 1' through contacts w, 7:, and by Jwire 49' through contacts t1, wire 50', 47 coil g, 48', 7', to wire 2', stepplng the arm gx to g3.

The motor M3 will start up and the rever-sing coil R6 will be energized, the energizing circuit being from wire 1', through 3', arm gi, g3, 51, 51a, motor M3, 37', to wire 2'. The circuit divides at coil R and passes 'through the coil and by wire 38 to wire 2. Current also vflows from wire 51' through wire 56', reversing coil R8, and wire 57 to wire 2', energizing the coil and throwing in the reverse clutch for the traveling Contact arm 112. The traveling arm 112 will be moved toward the contacts m1 and on arri-lying ithere will stop because the threaded block 111 on which the travelin Contact closin arm is carried willpass o l of the threa ed portion of 'itsr actuating shaft. y

The motor Ms now moves the frame back and its movement continues until theframe reaches the contacts t1. These are opened by the engagement of the frame with them. The coil y is momentarily denergized and its armature retracts but it is immediately energized again by the closing of the contacts t?, steps the arm gx to the contacts g* and g8, and stops the motor M3 by breaking its actuating circuit.

The motor M2 is nowienergized and also the reversing coil R1 by a circuit from g4 through 52', coil R10, which, it will be noted, has a double winding, and 17 to wire 2, also through wire 53 through motor M2 and wire 26' to wire 2. The carriage is now returned to its initial position. The reenergization.

. all the clutches are Lacasse versing coil R4 is also energized by current from` g@ through wire 60', through wire 30', coil R4 and wire 31 to wire 2. This will return the contact closing arm 7 6 to a position to close the contacts 01.

TW hen the carriage reaches the contacts p1 it engages themvand opens them, the coil g being momentarily denergized, but it is energized immediately by the closing of the contacts p2 and steps the arm gX around to the point g which has no electrical connection with any part of the apparatus. The arm gx momentarily effects an electrical connection with the point or contact gfi in its passage from contact g4 to g". Now g5 is connected by wires 54' and 61' with an .arm cY which is insulated from the arm c". lf the arm cx should happen to rest on a contact c1 in position to energize the coil R at the next printing operation, then the arm c' will not be on a contact c3, but if the arm c* should rest on a contact c2 the arm cy will rest on a contact c3 and' current will flow 4 from g5 through 54', 61', arm cy, c3 and by wire 55 through coil c. The switch will then move the arm cx so that it will always rest on a contact c2 at the end of the printing operation lready to energize the coil R to move the carriage forward after the first printing operation on another plate.

To make the switch arm always come to rest on the contact d1 at the end of the print ing operation, I provide an eXtra magnet cZm. The arm ZX bears an insulated contact d which engages a stationary contact d when the arm dx reaches d3. The contact (Z5 is long enough to cause the switch to step the arm d* from d3 t0 al* on the energization of the magnet dm and from d4 to d1 on its de- This only occurs when the arm gx is on g8. Thus the coil R3 is always energized before the coil R4 at the beginning of the printing operation.

It will be thus seen that all that the op erator has to do after the sensitized plate is in position is to set the arms which control the various spacing operations to the desired positions, turn on the two starting switches, and reset certain of the arms when the printin has been done. The apparatus will then e in position to print another Plate.

In case any accident should occur tothe electric circuit, as where a storm should cut oli the source of current, the device may be operated'manually, for it will be noted that normally in neutral position. To this end I provide the shaft 185 having a key way 186.l A worm 187 is feath ered to the shaft but may slide therealong. This worm is lengaged by ears 188 carried Y by the slidable frame 26 and therefore moves with the frame.

which may be secured to the shaft E by the set screw 175. When the shaft 185 is turned byl the handle 189 the shaft E is operated.

The shaft 28 is operated in a similar manner by means of the shaft 190 Which is rotated by the handle 191. The shaft 190 has a worm precisely like the Worm 187 which drives a gear 176, the latter being secured, if desired, to the shaft 28 by means of the set screw 174. The shaft 109 may be used to move the slidable frame 26. Dials are provided to indicate the distances' the parts move. At Sm in Fig. 19 I have shown a switch Which may be used to light the lamps L from the main feed Wires or, if` they are out of commission, from a storage battery (not shown), or any other suitable source of electrical energy.

In order to simplify as far as possible the diagrammatic view of the circuit vconnections in Fig. 19 I have purposely omitted therefrom certain resistances the use of which permits all of the electrical devices shown to be operated on one circuit, as for instance a 110 volt D. C. circuit. It Will be understood however, that such resistances may be used Wherever needed.

I claim 1. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to different printing positions With respect to the plate and means for automatically moving the negative holder intermittently to. different printing positions. l

2. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to different printing positions with respect to the plate and means for automatically controlling the movement of said holder for spacing the printing positions thereof equal distances apart.

3. Ina device for rinting on sensitized plates, a frame for olding the lsensitized plate, a negative holder movable to different printing positions with respect to the plate and means for automatically pressing the negative against the sensitized plate at each printing position. ,l

4. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to different printin positions with respect to the plate, means for automatically pressing the negative against the sensitized plate at each rinting position, a source of light carried y the negative holder, and means for automatically energizing said source of light during the periods of contact .of the movable negative holder.

5. In a device for. printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to dll'erent printing positions with respect to the plate, manual means for determining the first and last printing positions of a column of prints and means foi` subsequently automatically moving the negative holder intermittently to different printing positions of the column.

6. In a device for printing on sensitized plates, 'a frame for holding the sensitized plate, a negative holder movable to different printing positions with respect to the plate, manual means for determining the first and last printing positons of a column of prints, means for subsequently automatically moving the negative holder intermittently to different printing positions of the column, and means `for automatically controlling the -movements of said holder for spacing the printing positions thereof equal distances apart.

7. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable tofdiferent printing positions with respect to the plate, means for automatically moving the negative holder intermittently to different printing positions in a column and means for automatically shifting the negative holder to a printing position in another column.

8. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to different printing positions with respect to the plate, means for automatically moving the negative holder intermittently to different printing positions in a column, means for automatically shifting the negative holder to a printing position in another column and means' for automatically moving the negative holder in a reverse direction from its movement in the first mentioned column to different printing positions in said second named column.

9. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to different printing positions With respect to the plate, means for automatically moving the negative holder intermittently to different printing positions in a column, means for automatically shifting the negative holder to a printing position in another column, means for automatically moving the negative holder in a reverse direction from its movement in the first mentioned column to different printing positions in said second named column, and automatic means for spacing the printing positions of the negative holder to maintain the columns a predetermined distance apart.

10. In a device for printing on sensitized plates, a 'frame for holding the sensitized plate, a negative holder movable to different printing positions with respect to the plate, means for automatically moving the negative holder intermittently to different printing positions in a column, means for automatically shifting the negative holder to a printing position in another column, means for automatically moving the negative holder in a reverse direction from its movement in the first mentioned column to different printing positions in said second named column and adjustable automatic means for spacing the printing positions of the negative holder to maintain the columns an v desired distance apart.

11. In a device for printing on sensitized plates, a frame for holding the sensitized plate. a negative holder movable to different printing positions with respect to the plate, means for automatically moving the negative holder intermittently to different printing positions, and adjustable means for aut-omatlcallv controlling the movements of said holder for spacing the printing p ositions thereof any desired equal distances apart.

l2. In a device for printing on sensitized plates. a frame for holding the sensitized plate, a negative holder movable with respect to the plate, manual means for determining the printing positions of the negative holder, and automatic means for moving the negative holder to bring the negative to the positions determined.

13. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable with respect to the plate, manual means for determining the printing positions of the negative holder, and automatic means for moving the negative holder to bring the negative to the positions determined and for printing in said positions.

14. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable with respect to the sensitized plate, manual means for determining the end positions of the negative holder for a column of printing positions` manual means for determining the uniform distances between adjacent printing positions of the negative holder in the column, and means for automatically lprinting in the positions determined.

15. In a device for printing on sensitized plates, a. frame for holding the sensitized plate, a negative holder movable with respect to the sensitized plate, manual means for determining the end positions of the negative holder for a column of printing positions. manual means for determining the uniform distances between adjacent printing positions of the negative holder in the column. means for automatically printing in the positions determined, and means automatically brought into operation after the column has been printed for shifting the negative holder to another column. i

16.'In a device for printing on sensitized plates,a frame for holding the sensitized plate, a negative holder movable to different printin positions with respect to the sensitized p ate, manual means for determining the end positions of the negative holder for a column of printing positions, manual means for determining the uniform distance between the adjacent printing positions of the negative holder in a column, manual means fordetermining the vdesired uniform distances between a plurality of columns of said printing positions, means for automatically printing in the first column determined` and means for subsequently shifting the negative holder to print in each of the columns successively.

17. In a device for printing on sensitized i plates, a frame for holding the sensitized printing positions with respect to the sensitized late, manual means for determining the printing positions of the negative holder for a. plurality of columns, manual means for determining a desired uniform distance between the columns, and automatic means for printing in the posit-ions determined.

18. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to different printing positions with respect to the sensitized late, manual means for determining the prlntin positions of the negative holder for a pre etermined number of columns, manual means for determining a desired uniform distance between the columns, and automatic means for printing in the positions determined.

19. In a' device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder having a normal position of rest, and movable to differentl printing positions with respect to the sensitized late, manual means for determining the printing positions of the negative holder for a predetermined number of columns, manual means for determining a desired uniform distance between the columns, automatic means for printingin the positions determined, and means for automatically stopping the printing means When the predetermined number of columns has been printed.

20. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder having a normal position of rest, and movable to dierent printing positions with respect to the sensitized p ate, manual means for determining the printing positions of the negative holder for a predetermined number of columns, manual means for determinin a desired uniform distance between the co umns, automatic means for printing in the sitions determined, means for automtica ly stopping the printing means when the predetermined number of columns has been printed,

and a signal for automatically indicating the end of the printing Operation.

21. vIn a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder having a normal position of rest, and movable to different printing positions with respect to the sensitized plate, manual'means for determining the printin positions of the negativeV holder for a pre etermined number of columns, manual means for determining a desired uniform distance between the columns, automatic means for printing in the positions determined, means for automatically stopping the printing means when the predetermined number of columns has been printed, and means actuated by the manual resetting of certain of said determining means for automatically returning the negative holder to its initial position of rest.

22. In a printing device, a stationary frame yfor holding a sensitized plate, a movable rame carried by Said stationary frame, a negative carried by the movable frame and movable thereon in a direction at right angles to the movement of the movable frame, means for automatically'moving the negative intermittently on the said movable frame, means for automatically moving the movable frame intermittently on the station- A ary frame, and means for automatically spacing the positions of rest of the negative uniformly.

23. In a printing device, a stationary frame for holding a sensitized plate, a movable frame carried by said 'stationary frame, a negative carried by the movable frame and movable thereon in a direction at right angles to the movement of the movable frame, means for automatically moving the negative intermittently on .the same movable frame, means for automatically moving the movable frame intermittently on the stationary frame, means for automatically spacing the positions of rest of the negative uniformly, and means for automatically spacing the positions of rest of the movable frame uniformly.

frame, a^movable frame carried by said stationary frame, a negative carried by the movable frame and movable thereon in a direction at right angles to the movement of the movable frame, means for automatically moving the negative intermittently along said movable frame and means for automatically moving the movable frame intermittently on the stationary frame. l

25. In a printing device, a stationary frame, a movable frame carried by said stationary frame, a negative carried by the movable frame and movable thereon in a direction at right angles to' the movement of the movable frame, means for automatically moving the negative intermittently along said movable frame, means for automatically moving the movable frame intermittently on the stationary frame, and means for automatically reversing the direction 'of movement of the negative at each position of rest of the movable frame.

26. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable with respect to the plate to different printing positions, means for determining said printing positions and means for causing the negative holdell t0 bring the negative into contact with the sensitized plate automatically at the determined positions.

27. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to different printing positions with respect to the plate and automatic means for causing the movement of said negative holder` to print a plurality of columns successively.

28. In a device for printing on sensitized plates, a frame for holding the sensitized plate, a negative holder movable to different printing positions with respect to the plate,

automatic means for causing the movement of said negative holder to print a plurality of columns successively and means for spacing the prints in each column equal distances apart.

LESTER A. STANLEY.