US1742249A - Stenciling machine - Google Patents

Description

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W. R. HAMUN STENCILING MACHINE Fild March 28. 1928 ,6 Sheets-Sheet 171/?) (3 1 "@625 B..f/ Q 77LZ/ his Jan. 7, 1930.

W. R. HAMLIN STENCILING MACHINE Filed March 28. 1928 6 Sheets-Sheet Jan. 7, 1930. R, HA L N 1,742,249

STENCILING MACHINE Filed March 28. 1928 6 Sheets-Sheet 5 Jan. 7, 1930. w. R. HAMLHN STENCILING' men-ma 6 Sheets-Sheet 4 Filed March 28, 1928 7we1 125 7: 1e ELEZJIQZZIZ a.

W. R. HAMLIN STENCILING MACHINE Filed March 28. 1928 Jan. 7, 1930.

" 6 Sheets-Sheet 6 15 sheet material beneath the 30 squeegee.

' Patented Jan. 7, 1930 UNITED STATES PATENT OFFICE WILFRED R. HAMLIN, OF BOSTON, 'MASSACHUSETTS, ASSIGNOB- OF ONE-HALF TO RUSSELL G. REILLY, OF CAMBRIDGE, MASSAGHUSETT srmrcrmne madnmn Application filed March 28,1928. Serial No. 265,477.

Thisinvention relates to improvements in stenciling machines, and particularly to a poweroperate'd machine for printing multicolored display cards, posters and the like.

machine of the character mentioned in which the printing operation is performed by moving the stencil beneath the squeegee While the latter is held stationary and in contact with the stencil, the material upon which the printing operation is to be performed being moved in the same direction and at the same speed as the stencil between the latter and an oscillating segmental drum which supports the point where it is engaged by the squeegee.

Another obj vide a novel means for feeding the sheets of material one by one to the printing instrum'entalities, the printed sheet being autos matically released after the printing operation, and being discharged from the machine V 13 1s shdably by moving belts.

Another object of the invention. is to provide a novel means for supplying coloring material to the squeegee and stencil, together with a means for moving the squeegee into cont-act with the stencil while the latter is being moved in onedirection beneath the Still another object of the invention is to provide a -means forloosening and removing from the surface of the sheet material small particles of foreign matter which often adhere thereto. 1

The invention consists "in a stenciling machine as set forth inthe following specification and particularly. pointed out in the claims thereof.

Referring to the drawings:

Figure 1 represents a plan view' of a stenciling machine embodying my invention.

Fig. 2 is a front elevation of the machine. Fig. 3 is an end elevation of the machine as viewed from the right hand side of Fig. 1.

' Fig. 4; is an enlarged detail sectional elevation taken onthe line 4-4.of Fig. 1.

Fig. 5 is an enlarged detail sectional elevation of the squeegee and reservoir for the col- The object of the invention is to provide a.

ect of the invention is to pro prring material, as taken on the line 5-5 of 1g. 3. p Fig. 6 is a detail sectional view taken on the" line 6 6 of Fig. 5.

Fig. 7 is an enlarged detail sectional ele vation taken on the line 7-7 of Fig. 4, looking in the direction of the arrows on said line, .the mechanism being illustrated in the position it assumes when the gripping fingers for the sheet material are closed. Fig. 8 isa View similar to Fig. 7, but illustrating the mechanism in the position it assumes when the gripping fingers for the sheet a material are open.

Like numerals refer to like parts through- 5 out the several views of the drawings.

.In the drawin s, 10 represents side frames which are space apart and held rigidly secured relatively to each other by a plurality of tie rods 11. Mounted at the top of each of the side frames 10 is a cylindrical guide 12 upon which a reciprocatory auxiliary frame mounted. The reciprocatory frame 13 embodies therein a pair of side bars 14, each of which is rigidly secured at its opposite ends to bearing members 15, and the side bars 14 are rigidly secured together to move in unison by a cross bar 16 of channel construction.

Mounted upon the reciprocatory frame 18 so is a main stencil frame 17, one end of said stencil frame being rigidly secured to the cross bar 16, and theother end of said stencil frame being supported upon a rod 18, which. in turn, is mounted at its opposite ends in the 35 side bars 14. A pair of brackets 19 are employed in securing the stencilframe 17 to the rod 18.: An auxiliary stencil frame 20 is mounted within the main stencil frame'17, being pivoted thereto by a pair of hinges 21, a pivotal pin 22 of which may be removed from the hinges when it is desired to remove the auxiliary stencil frame from the main latter being manipulated when it isdesired to raise the auxiliary stencil frame to examine a stencil 24 of well known form which is attached thereto. A cross member 25 of the auxiliary stencil frame 20 is slidably mounted at its oposite ends in the auxiliary frame 20 and said cross member is adjusted to vary the tension upon the stencil 24 by means of a plurality of adjusting screws 26 which extend through said cross member and into a portion of the frame 20.

The mechanism for imparting the reciprocating movement to the frame 13 is as follows :Mounted in the side frames 10 is a driving shaft 27 upon which a tight pulley 28 and a loose pulley 29 are mounted. The driving shaft 27 has a pinion 30 fastened thereto which meshes with and drives a gear 31 fastened to a cam-shaft 32. An arm 33 is rigidly fastened to one end of the cam shaft 32 and is operatively connected by means of a link 34 with an arm 35 rigidly fastened to one end of a rock shaft 36 which is mounted in both of the side frames 10. A segmental gear 37 is rigidly fastened to the rock shaft 36 and meshes with a gear 38 rigidly fastened to a countershaft 39 mounted in both of the side frames 10. The countershaft 39 has a gear 40 rigidly secured thereto at each end thereof and said gears mesh with racks 41 which are fastened rigidly to and extend longitudinally of the side bars 14 of the reciprocating auxiliary frame 13.

Sheetsof material a upon which the design of the stencil 24 is to be printed are located in a pile A upon a table 42 which is supported at one end thereof upon brackets 43 and 44, in turn mounted upon other brackets 45 and 46 respectively, which are fastened to the side frames 10. The outer end of the table 42 is supported by a pair of rods 47 which are attached at their upper ends to the table and at their lower ends to the side frames 10.

The attendant of the machine takes the sheets of material a from the pile A and in order that said sheets may be correctly positioned to be picked up by the feeding mechanism, a plurality of positioning fin ers 48 are provided at one end of the table 42. Another positioning finger 49 is located at one side of the table 42 and all of said fingers 48 and 49 project a short distance above the upper surface of the table 42. After the sheet material a has been placed at the forward end of the table with the edges of said sheet in contact with the front faces of the positioning fingers, said sheet material is held against said fingers by a plurality of flat springs 50 which are mounted at one end thereof upon a rock shaft 51, which is located above the table 42, and which is supported at one end thereof in the bracket 44 and in another bracket 44 which is located beside the bracket 44.

The fingers 48 and 49 are rigidly fastened to shafts 52 and 53 respectively. The shaft 52 is mounted in bearings 54 which are supported upon the brackets 45 and 46, while the shaft 53 is mounted in a single bearing upon the bracket 45. The shaft 52 has a bevel pinion 56 rigidly fastened thereto which meshes with a similar bevel pinion 57 rigidly fastened to the shaft 53. An arm 58 is rigidly fastened to the shaft 52 and said arm is connected by a rod 59 with an arm 60 loosely pivoted upon the driving shaft 27. A cam roll 61 is rotatably mounted upon the arm 60 and said cam roll bears against the periphery of a cam 62 fastened to the cam shaft 32. A spring 63holds the cam roll 61 against the surface of the cam 62. Another rod 64 operatively connects the arm 58 with another arm 65 which is rigidly secured to the rock shaft 51.

After the sheet of material a has been placed in position to be gripped by the feed ing instrumentalities and before the latter are operated to feed said sheet of material, the cam 62 operates to remove the positioning fingers 48 and 49 from engagement with the edge of the sheet of-material, and out of the path through which the sheet of material is fed; and at the same time the shaft 51 is rocked to lift the springs 50 from engagement with the upper surface of the sheet of material and into a position where they will not interfere with the movement of said sheet.

The mechanism for feeding the sheet of material a into a position to have the design upon the stencil 24 transferred thereto is as follows :Extending transversely across the machine and mounted in bearings which either form a part of, or are secured to the cross bar 16, is a shaft 66 upon which are mounted a pair of arms 67. The arms 67 are so positioned upon the shaft 66 that they may swing upwardly and downwardly between the'inner sides of the side frames 10 and the edge of the main stencil frame 17. Rotatably mounted upon a portion 68 of each of the arms 67 is a cam roll 49. The cam roll 69 of each arm 67 engages the edge of a stationary cam 7 0, one end of which is supported upon one of the tie rods 11, and the other end of which is supported by a brace rod 72 which extends from one end of the cylindrical guide to the side frame 10.

Another portion 73 of the arms 67 terminates in a bearing portion 74in which a shaft 75 is mounted to rock. An angle bar 76 extends between the arms 67 adjacent to the bearing portions 74 of the latter and mounted upon said angle bar are a plurality of spring fingers 77. Rigidly secured to the shaft 75 and located in alignment with the fingers 77 are other fingers 78. The outer extremities of the fingers 78 project into notches 79 provided therefor in the forward end of the table 42. A bevel pinion 80 is,

rigidly fastened to the shaft 75 and said pin ion meshes with a bevel pinion 81 which is rigidly fastened to a shaft 82, which is mounted in suitable bearings provided in the arm secured to a shaft 85 also mounted in the arm 67. An arm 86 is rigidly secured to the shaft 85 and when thereciprocating frame 13 and arms 67 are located in the positions illustrated in Figs. 2 and 4 the arm 86 engages a dog 87 which is fastened to the inner surface of one of the cams 70, see Fig.7, and the fingers 77' and 78 will be located in their closed position, gripping the edge portion of the sheet of material a. When upon being moved toward the left, Fig. 1, the main stencil frame reaches its other extreme" position, the arm 86 will engage a stop 88 which is also secured to the cam 70 near its outer end, see Fig. 8. The fingers 77 and 78 are held firmly closed during the feeding movement of the sheet of material a and open during the return movement of the arms 67 by a mechanism as follows z-Referring particularly to Figs. 7 and 8, 89 represents a stop member which is rigidly secured to the shaft 85. The stop member embodies therein arms 90 and 91 in which are mounted adjusting screws 92 and 93 respectively. A-n arm 94 is rigidly fastened to the shaft 85 and the outer .extremity of said arm is connected by a bowed link 95 to one end of a spring 96, the outer end of said spring being attached in any suitable manner to the portion 68 of the arm 67. \Vhen' the reciprocating frame 13 and arms 67 reach their extreme positions toward the right, Fig.

2, and the arm 86 engages the dog 87, the shaft 85 is rocked into the position illustrated in Fig. 7 at which time the adjusting screw 92 engages the side of the arm 67 and the spring 96 and link 95 will act to hold said adjusting screw 92 against the side of said arm. At this time the fingers 77 and 78 will be closed, and gripping the 'sheet of material a. When, however, the reciprocating frame 13 and arms 67 are moved to their extreme position toward the left, Fig. 2, and the arm 86 engages the stop 88, the shaft 85 and associated parts will be rocked into the position illustrated in Fig. 8, at which time the adjusting screw 93 will be located in engagement with the side of the arm 67 and atthis time the spring 96 and link 95 will be located in a position to hold the fingers 77 and 78 open. In each instance when the sha t 85 is rocked bythe engagement'ofthe arm 86 witheither the dog 87 or the stop 88 the rocking movement of said shaft will be transmitted through the bevel pinions 84, 83,: 81 and 80 to the shaft 75, which upon being rocked, will move the fingers 78 relatively to the fingers 77. The fingers 77 are stationary except for a slight yielding movementwhen the fingers 78 are operated. 7

During the printing operation, the sheet of material a is supported beneath the stencil 24 upon a segmental drum or support 97 which is rigidly secured to-the countershaft 39, said support having an oscillating movement imparted thereto by means of the mechanism which imparts the reciprocating movement to the frame 13.

At the completion of the printing operation, sheets of material a upon being released by the fingers 77 and 78, drop upon a plurality of belts 98 which travel over rollers 99 and 100, the former being mounted in suitable bearings provided therefor in the side frames 10, and the roller 100 being mounted in bearings 101 mounted upon the brace rod 72. The roller 100 is rotated by a belt 102 from a'pulley 103 fast to the cam shaft 32.

The mechanism which is employed in transferring the design of the stencil 24 to the sheet of material a is as follows :Mounted in bearings 104, which are adjustably secured by screws 105 to the top of the side frames 10, is a shaft 106, and pivotally mounted upon. said shaftat oppositeends thereof adjacent to the bearings 104, are rocking frames 107 and 108. Adjusting screws 109 are provided for each of the rocking frames, being adapted to engage the top of the side frames 10 and limit the extent to which said rocking frames may be moved toward said side frames.

Mounted in the rocking frames 107 and 108 is a shaft. 110 to which a pair of arms 111 are rigidly secured. A main body portion 112 of a reservoir 113 for coloring material is detachably secured by means of thumb screws 114 to the arms 111. The body portion 1120f the reservoir 113 is sheet material and a top portion 115 and front portion 116 thereof are closed, whereas said body portion is open at the rear thereof at 117 and upon the under side thereof at 118. The rocking frames 107 and 108 are both slotted at 119 and a shaft 120 extends between said rocking frames with its end portions projecting through theslots 119 thereof. A bearing member 121 is mounted upon each end of the shaft 120'and projects into and partlythrough the slot 119. The shaft 120 ,is clamped securely within the bearing 121 and the latter is clamped securely within the slot 119 by means ,of' nuts 122 which are located upon the extremities of the shaft 120, see Fig. 6. Rigidly secured to the shaft 20 are arms 123 which constitute supports for a bottom member 124 of the reservoir 113. structed of sheet material and extends between the side portions of the reservoir and partially closes the opening through the under side of the reservoir. The bottom member 124 terminates at its forward end in a downwardly projecting flange 125. Secured to the under surface of the bottom member 124 is an angle member 126 which has a downwardly projecting flange 127 formed The bottom member 124 is.

constructed of gages the lower edge of the front portion 116 of the reservoir 113 and co-operates with the bottom member 124 of the reservoir to close said reservoir. Rigidly secured to the shaft 120 adjacent to the inner surface of the rocking frames 107 and 108 are arms 131, each of which is connected by a rod 132 to a lug 133, which is formed integral with each of I the rocking frames. A spring 134 surrounds the rods 132, the lower end ofisaid spring bearing against the upper surface of the arm 131, and the upper extremity of said springbearing against the under surface of the lug 132. By loosening the shaft 120 within the rocking frames'107 and 108, and by manipulating a thumb nut 135, the position of the lower edge of the squeegee 128 may be varied and at thesame time the normal inclination of the squeegee with relation to the surface of the stencil maybe Varied by moving the shaft 120 up and down within the slots 119. An arm 136 is rigidly secured to the shaft 110 and said arm is connected at its outer extremity by a connecting rod 137 with a lever 138 which is pivotally mounted upon. the shaft 27. Theopposite extremity of the lever 138 from that to which the rod 137 is secured has a pair of cam rolls 139 rotatably mounted thereon, which engage the periphery of a pair of similar cams 140, which are fastened to the shaft 32.

The weight of the. rocking frames 107 and 108 and parts carried thereby is sufficient to hold the cam rolls 139 against the periphery of the cams 140, and as the latter are rotated, a rocking movement is imparted to the lever .138 to pull the connecting rod 137 downwardly, whereupon the rocking frames 107 and 108, together with the reservoir 113 and parts associated therewith, are moved toward the stencil 24 as the latter moves therebeneath, until the adjusting screws 109 engage the top of the side frames 10 at which time the lower edge of the squeegee 128 is brought into contact with the upper surface of the stencil 24.

After the squeegee 128 contacts with the stencil 24, a continued movement of the lever 138 and connecting rod 137 imparts a rocking movement to the shaft'110, and the body portion 112 of the reservoir 113 is moved forwardly a. short distance, thereby separating the lower edge of the front portion 116 of said reservoir from the front surface of the squeegee 128. This permits some of the coloring material to pass through the discharge opening thus formed to be deposited upon the surface of the stencil, and as the latter is moved beneath the squeegee, a small quantity of this coloring material passes through the meshes of the silk of which the stencil is constructed and transfers to the sheet of material a the designof the stencil in a'well known manner.

It often happens that the sheets of material ahave small particles of dust or other foreign matter clinging thereto, and if these particles become transferred from the sheet material to the stencil, the latter soon becomes clogged, so that the coloring material will not pass therethrough in the proper manner. In order to prevent these particles of foreign matter from being transferred to the stencil,'a means is provided for first loosening said material, and then for removing the loosened particles from thematerial. This mechanism is as follows Mounted in a pair of brackets 141 which are fastened to the edges of the side frames 10 is a casing 142 which constitutes a vacuum chamber, and the latter has a suction orifice 143 extending longitudinally thereof which is located adjacent to the path taken by the sheet of material a as it passes from the table 42 to the .printing instrumentalities.

Secured to one of the sides of the casing 142 is a brush 144, the bristles of which are adapted to engage the surface of the sheet material as it passes to the printing instrumentalities/ The suction orifice 143 is located between certain of the rows of bristles of the brush 144. The casing 142 is adjustably mounted within slots 145 provided in the one from the pile A and places said sheets upon the upper surface of said table with the front edges of the sheets against the positioningfingers 48, and with one of the side edges against the positioning finger 49. The cam 62 now operates to impart a rocking movement to rock the shaft 51 to lift the springs 50 from engagement with the upper surface of the sheet material, and to rock the shafts 52 and 53 to move the fingers 48 and 49' from engagement with the edge ofthe sheet and out of the path thereof. The sheet of material a is now pickedup by the fingers 77 and 78 and the frame 13 carrying with it the arm 67 immediately starts to move toward the left in Figs. 2 and 4. During the first part of the movement of the arm 67,.the outer end thereof, which carries the gripping fingers for the sheet of material a rises quite quickly, this movement being caused by the cam roll 69 travelling over the cam 70. At the same time that the outer end of the arm 67 starts to move upwardly, thesegmental drum 97 starts to move upwardly from the position illustrated in Fig. 4. As the sheet of paper starts upwardly, the upper surface of said paper is moved across the brush 144, and in front of the suction orifice 145 and any particles of foreign matter that may be clinging to the surface of the sheet material will be loosened therefrom and drawn into the suction orifice by the action of the brush and suction mechanism.

During the interval that the sheet of material a is moving upwardly, the frame 13 carrying the main stencil frame 17 and auxiliary stencil frame 20 is moving toward the left, Figs. 2 and 4, and toward the reservoir 113 for the coloring material and squeegee 128, and both of the latter are moving downwardly toward the stencil 24, and after the cross member 25 of the auxiliary stencil frame has passed beneath the squeegee 128, the latter is brought down into engagement with the upper surface of the stencil. The adjusting screw 109 of the rocking frames 107 and 108 are so positioned that the rocking frames will come to a stop when the squeegee 128 engages the stencil with the proper amount of pressure, after which the front portion 116 of the reservoir 113 opens sufficiently for a certain amount of coloring material to pass between the lower edge of the front member 116 and the adjacent face of the squeegee 128, and as the stencil continues to move beneath the squeegee, the coloring material passes through the stencil and is deposited upon the upper surface the sheet of material a is fed upwardly, it is gradually brought into contact with the periphery of the segmental drum 97 by which it is supported during the printing opera tion. During the printing operation therate of speed atwhich the sheet of material a is fed .beneath the stencil is exactly the same as the speed of the stencil. At the end of the feeding movement of the sheet of material a the arm 86 engages the stop 88 and a rocking movement is imparted to the shafts and 82 to move the g the fingers 7 thereby releasing the sheet of material a and allowing the' same to drop upon the belts 98 by which the sheet of ma-' terial is fed from the machine.

During the return movement of the arms 67, the fingers 77 and 78 are held in their open position already to grip the next sheet of material a when the arm 86 contacts with the dog 87. At the end of the printing operation, during the first part of the rocking movement of the lever 138 to lift the reservoir 113 and squeegee 128, thefront portion 116 of the reservoir moves backwardly into engagement with the front face of the squeegee, thereby closing the discharge orifice of the reservoir and preventing any more of the coloring material from being depg'sited upon to position: sheet material of the sheet of material a. As

gripping fingers 78 away from the stencil. The reservoir and squeegee are then returned to their normal raised position.

I claim: 1. A stenciling machine having, in combination, a main frame, an auxiliary frame slidably mounted upon said main frame, a stencil mounted upon said auxiliary frame, means for supplying coloring material for the stencil, a squeegee upon said main frame, means to move the squeegee into and out of contact with the stencil, means to impart a reciprocating movement to the auxiliary frame whereby the stencil is wiped across the surface of the squeegee in one direction, means to feed sheet material into contact with the stencil, whereby a design upon the latter is printed on said sheet material as the stencil passes beneath the squeegee, and an oscillating drum supporting the sheet material dur ing the printing operation.

2. A stenciling machine having, in combination, a main frame, an auxiliary frame slidably mounted upon said main frame, a stencil mounted upon said auxiliary frame, means for supplying coloring material for the sten- 011, a squeegee upon said main frame, means to move the squeegee into and-out of contact with the stencil, means to impart a reciprocating movement to the auxiliary frame whereby the stencil is wiped across the surface of the squeegee in one direction, a table, means upon said table, means to move said positioning means out of the path of said sheet material, and means to grip the sheet material and feed the same into contact .with the stencil, whereby a design upon the latter is printed upon the sheet material as the stencil passes beneath the squeegee.

3. A stenciling machine having, in combination, a main frame, an auxiliary frame slid ably mounted upon said main frame, a stencil mounted upon said auxiliary frame, a reservoir for coloring material, a squeegee associated with said reservoir, means to move the squeegee into and out of contact with the stencil and also to deposit coloring material upon the latter, means to impart a reciprocating movement to the auxiliary frame whereb the stencil is moved across the surface of the squeegee in one direction, and means to feed sheet material into position be neath the stencil to latter printed thereon as the stencil passes beneath the squeegee. ,1 A. A stenciling machine having, in combination, a main frame, an auxiliary frame slidably mounted upon said main frame, a stencil mounted upon said auxiliary frame, a reservoir for coloring material, a squeegee normally closing a discharge openingfor said reservoir, means to move the squeegee into to open said discharge opening to permit said coloring material to be deposited upon the have a design upon the and out of contact with the stencil and also stencil, means to impart a reciprocating movement to the auxiliary frame whereby the stencil is moved across the surface of the squeegee in one direction, and means to feed sheet material into position beneath the stencil to have a design upon the latter printed thereon as the stencil passes beneath the squeegee.

5. A stenciling machine having, in combination, a main frame, an auxiliary frame slidably mounted upon said main frame, a stencil mounted upon said auxiliary frame, a reservoir for coloring material, a squeegee normally closing a discharge opening for said reservoir, means to vary, the normal inclina tion of the squeegee with relation to the surface of the stencil, means to move the squeegee into and out of contact with the stencil and also to open said discharge opening to permit said coloring material to be deposited upon the stencil, means to impart a reciprocating movementto the auxiliary frame whereby the stencil is moved across the surface of the squeegee in one direction, and meansto feed sheet material into position beneath the stencil to have a design upon the latter printed thereon as the stenc1l passes beneath the squeegee. a

6. A stenciling machine having, in combination, a main frame, an auxiliary frame slidably mounted upon said main frame, a stencil mounted upon said auxiliary frame, a reservoir for coloring material, a squeegee normally closing a discharge opening for said reservoir, means to vary the normal inclination of the squeegee with relation to the surface of the stencil, means to move thesqueegee into and out of contact with the stencil and also to open said discharge opening to permit said coloring material to be deposited upon the stencil, means to vary the pressure at which the squeegee engages the stencil, means to impart a reciprocating movement to the auxiliary frame whereby the stencil is moved across the surface of the squeegee in one direction, and means to feed sheet material into position beneath the stencilto have adesign upon the latter printed thereon as the stencil passes beneath the squeegee.

7. A stenciling machine having, in combination, a main frame, an auxiliary frame slidably mountedtupon said main frame, a stencil mounted upon said auxiliary frame, a reservoir for coloring material, a squeegee normally closing a discharge opening for said reservoir, means to vary the normal inclination of the squeegee with relation to the surface of the stencil, means to move the squeegee into and out of contact with the stencil and also to open said discharge'opening to permit said coloring material to be deposited upon the stencil, means to vary the pressure at which the squeegee engages the stencil, means to imparta reciprocating movement to the auxiliary frame whereby the stencil is moved across the surface of the squeegee in one direction, means to feed sheet material into position beneath the stencil to have a design upon the latter printed thereon as the stencil passes beneath the squeegee, and an oscillating drum supporting the sheet material during the printing operation.

8. A stenciling machine having, in combination, a main frame, an auxiliary frame slidably mounted upon said main frame, a stencil mounted upon said auxiliary frame, a reservoir for coloring material, a squeegee normally closing a discharge opening for said reservoir, means to vary the normal inclination of the squeegee with relation to the surface of the stencil, means to move the squeegee into and out of'contact with the stencil and also to open said discharge opening to permit said coloring material to be deposited upon the stencil, means to vary the pressure at which the squeegee engages the stencil, means to impart a reciprocating movement to the auxiliary frame whereby the stencil is moved across the surface of the squeegee in one direction, a table, means to position sheet material upon said table, means to move said positioning means out of the path of said sheet material, and means to grip the sheet material and feed the same into contact with the stencil, whereby a design upon the latter is printed upon the sheet material as the stencil passes beneath the squeegee.

9. A stenciling machine having, in combination, a main frame, an auxiliary frame slidably mounted upon said main frame, a stencil mounted upon said auxiliary frame, a reservoir for coloringmaterial, a squeegee nor,- mally closing a discharge opening for sai reservoir, means to vary the normal inclination of the squeegee with relation to the surface of the stencil, means to move the squeegee into and out of contact with the stencil and also to open said discharge opening to permit said coloring material to be deposited upon the stencil, ,means to vary the pressure at which the squeegee engages the stencil, means to impart a reciprocating movement to the auxiliary frame whereby the stencil is moved across the surface of the squeegee in one direction, a table, means to position sheet material upon said table, means to move said positioning means out of the path of said sheet material, means to grip the sheet material and feed the same into contact with the stencil,

whereby a design upon the latter is printed In testimony whereof I have hereunto set my hand.

WILFRED R. HAMLIN.

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