US2129163A - Multicolor stenciling apparatus - Google Patents

Description

'H W. SCHNEIDER 2,129,163

MULTICOLOR STENCILING APPARATUS Filed July 2, 19:57 3 sheets-sheet 1 Sept, 6, 1938o /Nl/ENTR HWSChnez'der,

.3W m5 um, m5 C O 0 wn Sept. 6, 1938, H. w. SCHNEIDER MULTICOLOR STENCILING APPARATUS Filed July 2, 1937 5 Sheets-Sheet 2 /N VENOR Hlchneider,

ATT NEY-S.

Sept 6, 1938., H. w. SCHNEIDER I MULTICOLOR STENCILING APPARATUS Filed JulyZ, 1957 5 Sheets-Sheet 3 BVY v 7 7X `A TT NE YS 'Patented Sept..6, v1938 UNITED STATESy 2,129,163 MUL'rrcoLon s'rENcnmG APPARATUS Henry W. Schneider, Toledo, Ohio, assigner to Libbey Glass Company, a corporation of Ohio The present invention relates to stenciling apparatus designed for use in applying vitreous enamel compositions or paints to articles of glassware such as tumblers, jars, bottles and the like,

and to other` articles of a vitreous or ceramic nature in the multi-color decoration thereof by a.

stenciling process. f

More specifically, the invention relates to a stenciling apparatus of the type employing a re- Aciprocable stencil screen capable of movement relative to the article undergoing decorationand Vhaving permeable portions through which the decorating material is transferred to the varticle by the spreading action o a squeegeewhich is maintained in contact with the screen along the line of contact between the screen and surface of the article undergoing decoration.

The principal object of the invention is to provide an apparatus of the type set forth above which is adapted for multi-color application and which, by a single stroke of the stencil screen in either direction, is capable of applying two or more differently colored designs, or the component colors of a single design, to opposite, ad-

Liacent, or spaced regions on the surface of an article. Toward this end, the invention contemplates the provision of an apparatus having a reciprocable stencil screen which is "divided into a plurality of color applying regions through which differently colored decorating materials are respectivelyand successively forced onto the surface of an article by the successive spreading action of a like number of squeegees operating in their respective color applying regions of the screen during each` stroke of the latter.

More specifically stated, the principal object of the invention is to provide a stenciling apparatus of the type set forth above in which the re- I, ciprocable stencil screen is divided into adjacent spaced color applying regions, each regionhaving a squeegee associated therewith for forcing differently colored vitreous enamels through the screen, togetherwlth automatic means for causing the squeegees to successively traverse their respective color applying regions in operative decorating contact with the screen upon reciprocation `of the latter.

Yet another object of the invention is to provide such a stenciling apparatus in which the article support normally occupies a position whereinthe article is maintained in close proximity to, but out of contact with, the screen. together with automatic means operable upon commencement of the decorating operation for moving the article support toward. the screen to Application July 2, '1937, Serial No. 151,673

18 Claims. (CL lill-123) bring the article supported thereby into decorating contact with the screen.

Other objects of the invention will ybecome apparent hereinafter.

In the accompanying drawings: 5 Fig. 1 is a top plan view of a stenciling apparatus manufactured in accordance with the principles of the present invention;

Fig. 21s a side elevational view of the apparatus shown in Fig. 1; i 10 Fig. 3 is a sectional view taken substantially along the line 3-3 of Fig. 1;

Fig. 4 is a sectional view taken substantially along the line I-l ofrFig. 2;

Fig. 5 is a sectionai view similar to Fig. 4 with 15 the parts thereof in a different position;

Fig. 6 is a sectional view taken substantially along the line 5 8 of Fig. `1;

Fig. 7 is a fragmentary side elevational view of a squeegee elevating device employed in con- 20 nection with the present invention;

I Fig. 8 is a sectional viewl taken substantially along the line 8--8 of Fig. 7;

Fig. 9 is a fragmentary perspective view of a latch bar employed in connection with the pres- 25 ent invention; Y

Fig. 10 is a diagrammatic view illustrating th relative movements between the squeegees,4 screen, and article undergoing decoration with the screen moving in one direction; and 30 Fig. 11 is a diagrammatic view, similar in its representation to Fig. 10, with the screen..moving in the opposite direction.

The apparatus involves in its general organization a table or base I0 in the form of an elon- 35 gated, substantially rectangular casting provided with a recess II in the forward side thereof medially o f its ends. Bolted or otherwise secured to the .base I0 on opposite sides of the recess II and extending upwardly therefrom' are a pair of 40 brackets I2 (Fig. 3) having integrally formed aligned bearings I3 which serve to support therebetween a horizontal rock-shaft I4.

An article supportlngassembly I5 is pivotally mounted on the rock-shaft Il and is designed to 45 support thereon a tumblery T or other article having a curved surface to be decorated. The article supporting assembly .I5 consists of an elongated support I6., one end of which is pivotally carried and supported by the rock-shaft I4 50 and the cther'end of which is suspended from and supported by a plunger latch mechanism I8 which will subsequently be described. The 'support I6 is provided with a central longitudinal slot I8 which is substantially coextensive there- 55 2 rx with, and a pair of article-supporting racks 26 of T-shape design, each having a fiat threaded shank 2|, are adjustably mounted on the support X I6 for vertical and longitudinal adjustment in the \slot I6. Opposed pairs of rollers 22 and 23 are carried'by the supporting racks 26 and serve to support therebetween the articles T to be decorated. The entire article-supporting assembly I5 is adapted to be lowered by pivotal movement of the same about the axis of the rock-shaft I4 and, in order to facilitate lowering thereof, the support I6 is connected by means of a link 24 to a treadle mechanism (not shown) disposed beneath the table I6.

A pair of open, rectangular, frame-like supporting members 36 (Figs. 1 and 3), each having laterally extending arms 3|, are bolted or otherwise secured to the table I6 adjacent the opposite ends thereof. The arms 3| serve to support therebetween a pair of horizontal tracks 32 and 33 respectivelywhich are substantially coextensive with the table I6 which they overlie.

Supportedtractionally upon the tracks 32 and 33 and movable therealong in either direction transversely of the apparatus, is a stencil screen carriage 34 having associated therewith a stencil screen S adapted to occupy a position in the apparatus in tangential rolling line contact with the article T supported in the assembly I5 therebeneath. The carriageV 34 includes supporting wheels 35' which ride upon the tracks 32 and 33 and which are mounted on a pair of opposite side bars 26 of the carriage 34. The screen is divided into two color applying regions R1V and Rz by means of a bar 31 which extends `across the frame 36. The frame 36 is supported by means' of a pluralityof suspension brackets 36 from the opposed pairs of parallel side bars 26 and 36 of the carriage 34.

Extending transversely ofthe carriage 34 and supported at its ends in a pair of bosses 46 carried by a pairof sleeves 4| mounted on the opposed side bars 26, is a horizontally disposed rock-shaft 42 which forms a part'of the carriage and .is movable therewith. A pair of squeegee arms 43 and 44, which carry respective squeegees Sl and S2, are rockably mounted on the shaft 42 by means of integral sleeves 45 (Figs. 1 and 6) formed on the rear ends thereof and through which sleeves the shaft 42 extends. Each of the sleeves 45 is rockably mounted on. a second sleeve 46 (Fig. 6) which is slidably mounted on the rock-shaft 42. Each sleeve 45 is centered ,upon its respective sleeve 46 by means of a thrust flange 41 formed on the sleeve 46, and a thrust collar 46 which surrounds the sleeve 46 and which is secured thereto by means of a set screw 46. 'I'he sleeves 46 are capable of sliding movement on the shaft 42 within limits, and in order to limit the extent of sliding movementvthereof, pins 56 ,which extend diametricvally across the sleeves 46, extend through elongated slots 26 and 29 provided in the shaft 42...

A coil spring 52 (Fig. 1) is connected to the two inner sleeves 46 and thus the two squeegee arms 43 and 44 are at all times vnormally urged toward each other.

Bolted or otherwise secured to the base |6 at the rear side of the apparatusis a standard 53 (Figs. 1 and 3) which projects upwardly to substantially the level of the shaft 42 and which carries at its upper end a limit stop 56. Each collar 46 is provided with, a projecting arm 51 which carries at its outer end an abutment 56 in the form of an adjusting screw. The abutments 56 are adapted upon reciprocation of the carriage 34 to alternately engage the opposite sides of the linut stop 56 which projects into the respective paths of movement thereof to limit the extent to which the squeegee arms 43 and 44 are permitted to travel with the carriage upon reciprocation thereof.

The squeegees S1 and S. which operate successively to force coloring material through the pervious portions of the screen `and onto the surface of the tumbler T in their respective regions R1 and R.z of color application, are normally maintained in their elevated position out of contact with the screen and travel with the screen carriage 34 until such time as their services are required for actual application of coloring material to the tumbler T. After each squeegee is brought into-operation, it is necessary that the same be elevated from the coloring material on the screen prior to movement of the latter to either of its extreme positions so that upon return movement of the screen and operative engagement thereof by the squeegee, the enamel composition on the screen will occupy a position in advance of the squeegee.

This clearing operation just referred to, and the maintenance of the squeegees in their elevated positions when their services are not required, are accomplished by the provision of a plurality of squeegee elevating and supporting members which are arranged in pairs, one pair accommodating each squeegee arm 43 or 44, as the case,

may be.

'I'he members 66 are secured to the forward side bar 26 of the carriage assembly 34 adjacent those regions of the screen S which are to be cleared by the squeegees Sl and S2. Each member 66 comprises a face plate 6| (Figs. 8 and 9) having pivoted thereto a lifting cam piece 62 which normally occupies an inclined position and which loosely rests upon a pin 63 secured to the plate 6|. Each squeegee arm 43 and 44 is provided with a forwardly projecting pin 64 which is adapted to be engaged by one or another of the cam pieces 62 upon movement of the carriage 34 in one direction or the other in such a manner that the -pin 64 rides upwardly over the cam piece 62 and falls by gravity onto a rest 65 formed on the plate 6|. Upon relative movement between either squeegee arm and its respective member 66, as the carriage moves in the opposite direction, the pin 64 moves off of the rest 65 and the squeegee rides downwardly on an incline 69 formed on the plate 6| and comes into 'contact with the screen S in its respective region of color application. As the pin 64 passes the cam piece 62, the latter trips lightly over the same with no effect thereon whatsoever. Thus `the squeegee is not disturbed or elevated from the screen S once it has made contact therewith preparatory to traversing its respective region of color application. l

Referring now to Fig. 1, it will be seen that with the carriage 34 in the extreme right hand position indicated, the squeegee arm 43 overlies the tumbler T which is supported in the assembly I5 beneath the screen in the first colorapplying region R1 thereof. 'Ihe screen S normally is slightly spaced from the surface oi the .tumbler T and means is provided for elevating the entire article supporting assembly i5 a slight distance in order to close the gap existing between the screen S and the tumbler T. This elevation of the article supporting assembly, together with l 2,129,163 y the pressure exerted by eitherv oi' the squeegees S1 or S2 upon the screen when the same is lowered into operative decorating engagement therewith and which causes the screen to become exed, causes the surface of the tumbler T to make tangential rolling line contact with the screen upon movement of the latter in either direction.

Additionally, in order that the commencement and termination of each application of color to the opposite sides of the tumbler T shall not be left to the -skill and discretion of the ciperator` of the apparatus, means is provided for arresting movement of the carriage ,I4 after each color ap.- Dlying region of the screen has been traversed by its respective squeegees S1 and S2.. t

The means for elevating the article supporting assembly I5 and the means for arresting move, ment of the carriage 34 just referred to, comprises the plunger latch mechanism Il, previously mentioned, together with a latch bar 63 which cooperates therewith. The latch bar 63 is suspended from the front side bar 33 of the carriage 34 and is movable therewith. A pair of aligned elongated slots 61 and 63 respectively are formed in the latch bar 66 and the length of each slot depends upon the extent or amplitude of movement of the respective squeegees S1 and S2 across the surface of the screenSv in their respective regions B1 and R.2 of color application;

The plunger latch mechanism I8 is supported at the upper end of a bracket (Fig. 3) which is bolted or otherwise secured to the forward edge of the table Hl. The latch mechanism consists of a cylinder 1| (Figs. 4 and 5), in'vhich there is disposed a lower plunger 12 to which the link Il that supports the forward end of the article supporting arm `i6 is attached. The plunger 12 is normally maintained inl an elevated position4 by ymeans of a coll spring 13 and is adapted to be The plunger 14 bears against the underneath side of the latch bar 68 and slides therealong as i the carriage 34 is reciprocated. The pressure of the coil spring 15, acting upon the coil spring 13, serves to linut the extent of the upward movement of the plunger and consequently the upper surface of the tumbler Tis maintained closeto.

the lower surface of the screen S but out of con- `tact therewith. Shortly after thelcarriage 34 has commenced its stroke and after the squeegee has entered upon its operative decorative engagement with the screen S in the first color applying region R1 thereof, the upper plunger 14 encounters the slot 61 and is projected upwardly therethrough, thus releasing the pressure ofthe spring 15 on the spring 13 and permittingthe latter to expand and raise the plunger 12.to close the gap existing between the tumbler T and the screen S. The upper plunger 14 remains in the Aslot `61 until the first color application of the `design or designs has been made upon' the tumbler T.

As the extreme end of the slot A61 engages the upper plunger 14, the carriage is abruptly vhalted and the operator mustactuate the treadie, mechanism to lower the tumbler supporting carriage I5 and thus remove the partially decorated tumblerv from the screen S; At the same, time, the

upper plunger 14 is withdrawn from the slot-61 y to enable the carriage 34 to proceed along the tracks 32 and 33. Shortly after the squeegee iii2 has entered upbn its decorative stroke in engagement with the screen S in the second region R2 of color application, the upperplunger 14 encounters the slot Gland is projected upwardly therethrough andremains therein until the second color application of the design has been completed. As the extreme end of the slot 68 engages the plunger 14, the carriage is again halted and before the carriage can be moved to its extreme position, the operator must again actuate the foot treadle to lower the article supporting carriage to remove the tumbler from contact with the screen S. A

In order to' retain the carriage 34 in either of its extreme positions against the tendency of the spring 52 to pull the same to a medial position, spring pressed latch members .16 are carried by the forward ends of the transverse side bars 26 and are designed for releasable holding engagement with counterpart members 11 which are mounted on the supporting members 30. A pair of actuating handles 18, by means of which thecarriage 34 is reciprocated, are conveniently associated with the latch members 16.

In the operation of the apparatus, the tumbler `T or other article to which the multi-color design, orv differently colored separate designs, is, or are, to be applied is placed upon the rollers 22, 23 of the article supporting assembly i5. The foot treadle mechanism is `released by the operator and the article supporting arm i6 assumes a, horizontal position with the article or tumbler T slightly spaced from the underneath side of the stencil screen S in the color applying region R1 thereof. With the carriage 34 in the position indicated in Fig. l, the upper plunger 14 (Figs. 4 and 5) bears against the underneath side of the latch bar 66 adjacent one end thereof.

`Inasmuch as the abutment or set screw 58 (Fig. l), which is associated with squeegee arm 43, is in engagement with the limit stop 56, the coil spring 52 serves to maintain the sq'ueegee arm 44 in its extreme left-hand position as determined by the slot 29 in the shaft 42. Thus, the tendency of the carriage 34 is to move toward the left` to a medial position in its path of reciprocation. However, inasmuch as the latch member 16 and its counterpart 11 are in holding engagement, the carriage is releasably held in its extreme right-hand position.

In order to commence the decorating operation and apply decorating material of a selected color to the surface of the tumbler T. the operator engages the handle 18 and releases the latch 16,` 11, and, with theaid of the coil spring 52 moves the carriage 34 toward thel left on the tracks 32 and 33.-'The pin `(i4 formed on the end o'f the squeegee arm 43, which, prior to release of the carriage 34 had been supported upon the rest 65 (Fig. '7 moves therefrom by virtue underneath side of the screen S in the color applying region R1 as shown at A in Fig. 10 to receivethe 'coloring material which is forced through the same by the spreading action of the squeegee S1.

During initial movement of the carriage 34 so that the first color applying region R1 of the screen S passes beneath thesqueegee S1, the squeegee arm 43 and squeegee S1 remain stationary as shown at B in Fig. 10 by virtue of the engagement of the abutment or set screw 58 with the limit stop 56 (Fig. 1). Prior to engagement of the pin B with the end of the slot 28, the pin 64 formed on the end of the squeegee arm 43 rides upwardly on the cam piece 62 of the left hand inner squeegee elevating member 50. 'I'hus the squeegee Sl leaves the screen and the color applying operation ceases. Immediately thereafter, the pin 50 engages the end of the slot 28 and movement of the carriage 341s abruptly terminated.

In'order that the second color applying operation through the pervious portions of the second color applying region R.2 of the screen may proceed, it is necessary for the operator to depress the foot treadle mechanism slightly in order to lower the article supporting assembly i5 about the axis of the rock-shaft i4 (Fig. 3) and at the same time cause the upper plunger 14 to leave the slot 61. Release of pressure upon the foot treadle mechanism causes the plunger 14 to engage the underneath side of the latch bar $6. During further movement of the carriage 34, the squeegee arm Il and squeegee S1, which have been elevated bythe lifting cam piece 62, are moved with the carriage 34 by virtue of the engagement between its respective abutment 58 and the limit stop 58. Thus as thepln 64 of the arm 44 moves from the rest 65 (Fig. 7),

i the squeegee S2 is lowered into engagement with the screen S in the second color applying region R.2 thereof. Immediately after the carriage 34 resumes its movement toward the left (as seen in Fig. l) the upper plunger 14 enters the slot 68 andagain V-the article supporting assembly is moved upwardly to cause the tumbler T, which has been rotated throughout an angle of substantially one hundred and eighty degrees by virtue of its contact with the moving screen S, to engage the `stencil screen S in the second color applying region R* thereof as seen at C in K Fig. 10. l

Further movement of the screen S toward the left as viewed in Fig. 1 to the position indicated at D in Fig. 10, causes coloring material tov be forced through the pervious portions of the screen S in the second color applying" region Rl thereof and onto the tumbler T. As the pin 50 and the end of the slot 29 approach each other, the squeegee S2 is elevated in the manner previously described by the lifting cam piece 82, thus terminating the color applying operation.

. Finally, as the pin 5l and the end of the slot 29 come into engagement, the carriage reaches the end of its stroke and its movement is abruptly terminated. The operator then de the foot treadle'to lower the article supporting assembly I 5 and permit the decorated tumbler to be removed from the apparatus and an undecorated tumbler to be substituted in its stead.

It is thought unn to describe in detail the operation of decorating another tumbler with the stencil screen S moving in the opposite direction. It is believed sufficient to state that the operation of the apparatus is substantially the sameashasjustbeendescribcd savethatthe squeegee S comes into operative decorating relation on the screen S in the color applying region It2 prior to such operative decorating relation being assumed between the squeegee1 and the screen S in the color applying region R1. The diagrams A, B, C and D of Fig. l1 correspond to the diagrams A, B, C and Dvof Fig. and illustrate in a like manner the relative positions of the squeegees S1 and Si with respect to the screen upon movement of the carriage in the reverse direction.

Modifications may be resorted to within the spirit and scope of the appended claims. For example, while the apparatus herein shown vand described has been embodied in an apparatus of the type employing a' reciprocable stencil screen, the invention, by slight' modification thereof, may be adapted for use with an apparatus of the type employing an cillatable stencil screen which oscillates about a xed center.

I claim:

1. In a multi-color stenciling apparatus, a stencil screen provided with spaced pervious portions through which diiferently colored decorating materials are adapted to be respectively forced onto the surface of an article, means for supporting an article having a curved surface in tangential rolling line contact with said screen, and a squeegee for each of said pervious portions, said screen and article being movable relative to each other whereby said pervious por-- tions of the screen traverse the surface of the article successively.

2. In a multi-color stenciling apparatus, a

stencil screen provided with spaced pervious portions through which differently colored enamels are adapted to be respectively forced onto the surface of an article, means for supporting an article having a curved surface in tangential rolling line contact with said screen, a squeegee for each of said pervious portions, said screen being movable in its own plane whereby said pervious portions traverse the surface of said article successively, and means operable upon such movement of the screen for successively aligning said squeegees with and for holding the same in contact with said screen along the line of contact between the curved surface of the article and screen.

3. In a multi-color Vstenciling apparatus, a stencil screen provided with spaced pervious portions through which diiferently colored enamels are adapted to be forced onto the surface of an article, means for supporting an article having a curved surface in tangential rolling line contact with said screen, a squeegee for each of said pervious portions. said screen being movable in its own plane whereby said pervious portions thereof successively traverse the surface of said article, and means operable upon movement of said screen for maintaining said Squeesees successively in contact with their respective pervious portions ofthe screen along the line oi' contact between the curved surface of the article and the screen. i

4. In a multi-color stenciiing apparatus, a reciprocable stencil screen movable in its own plane and provided with spaced pervious portions -reciprocstion of said screen in either direction for maintaining said squeegees successively in contact with said screen along the line of contact between the curved surface of the article and the screen.,

5. In a stenciling apparatus, a 4reciprocable stencil screen movable in its own plane from Vone extreme position to another, said screen being divided transversely to its direction of movement into adjacent color applying regions, a squeegee for each color applying region, and means operable upon movement of said screen in one direction for causing said squeegees to successively traverse their respective color applying regions in operative decorating contact with the screen.

6. In a stenciling apparatus, a reciprocable stencil screen movable in its own plane from one extreme position to another, said screen being divided transversely toits direction of movement into adjacent color applying regions, 'a squeegee for each color applying region, and means operable upon movement of said screen in either direction for causing said squeegees to successively traverse their respective color applying regions in operative decorating contact with the screen. s

7. In a stenciling apparatus, a reciprocable stencil `screen, an article support for positioning an article 'having a curved surface in rolling contact with said screen, said support normally occupying a position wherein an article supported thereby is in close proximity to. but out of contact with said screen, a squeegee for forcing coloring material through said screen and onto the surface of said article, and means operable upon reciprocation of said screen for moving said article support toward said-screen to bring the article supported thereby into rolling line contact with said screen.

8. In a stenciling apparatus, a reciprocable stencil screen, an article support for positioning an article having a curved surface in rolling contact with said screen, said screen being movable from one extreme position'to another and vice vsaid screen and onto the surface of said article, -and means operable upon initial movement of said screen from either of its extreme positions toward the other extreme position thereof for moving said article support toward said screen to bring the article supported thereby into rolling line contact with said screen.

\ 9. In a stenciling apparatus, a stencil screen carriage, a stencil screen mounted on said carriage, said carriage being movable from one extreme position to another and vice versa, an article support for positioning an article in tangential rolling line contact with said screen, said support being movable toward and away from said screen, means normally urging said support toward said screen, a latch bar mounted on said carriage for movement therewith, and a latch mounted on said support, said latch bar being provided with abutments in the end regions thereof adapted to bear against said latch and maintain said support in a position whereby the article supported thereby is out of contact with said screen, said latch bar upon initial movewt of said carriage from one of its extreme positions toward the other extreme position thereof serving to release said latch.

'the same in either direction.

reciprocable ysaid support being movable toward and away from said screen, means normally urging said support toward said screen, a latch bar mounted on said carriage for movement therewith, and a latch mounted on said support, said latch bar beling provided with a slot in the medial regions thereof, said latch bearing against said bar when said carriage is in either of its extreme positions thereof, said latch being adapted to be projected through said slot when said carriage is moved to a medial position thereof during reciprocation of 1l. In a stenciling apparatus, a reclprocable stencil screen carriage, a stencil screen mounted on said carriage and movable in its own plane upon reciprocation of the latter, an article support for positioning an article in rolling contact with said screen, said support normally occupying a position wherein an article supported thereby is in close proximity to but out of contact with said screen, a squeegee for forcing coloring material through said screen and onto the surface of the article, and cooperating means on said support and carriage and operable upon reciprocation of the latter for moving said support toward said carriage to bring the article supported thereby into rolling contact with said screen.

l2. In a stenciling apparatus, a reciprocable A stencil screen carriage. a. stencil screen mounted on said carriage and movable in its own plane upon reciprocation of the latter, an article support for positioning an article in rolling contact with said screen, said support normally occupying a position wherein an article supported thereby is inAclose proximity to butl out of contact with said screen, a squeegee for forcing coloring material through said screen and onto the surface of the article, and cooperating means on said support and carriage and operable upon reciprocation of the latter for moving said support and carriage relative to each other to bring the article supported on the former into rolling contact with said screen.

13. In a stenciling apparatus, a stencil screen movable in its own plane from one extreme position to anotherand vice versa, an article support,'means normally urging said support toward said screen to position an article supported thereby in contact with the latter, and means operable when said screen is in either of its extreme positions for rendering said first mentioned means inoperative.

14. In a stenciling apparatus, a movable stencil screen carriage including a stencil screen movable with the carriage in its own plane in opposite directions from one extreme position to another, said screen belng divided transversely to its directions of movement into adjacent color applying regions, a squeegee for each color applying region, said squeegee being bodily movable in the directions of movement of the screen, means normally urging said squeegees toward each other, a pair of stationary abutments positioned in the path of movement of said squeegeesand occupying a position between the latter, and a pair of abutments on said carriage adapted upon movement of the latter successively in opposite directions to alternately vengage respective 'squeegees and move the same.

15. In a stenciling apparatus, freciprocable stencil screen carriage including a stencil screen movable with the carriage in its own plane in opposite directions from one extreme position to another, said screen being divided into adjacent color applyingregions, a rock-shaft mounted on said carriage and movable therewith, a squeegee for each color applying region, said squeegees being mounted for sliding movement on said rock-shaft, means normally urging said squeegees toward each other inwardly on said shaft, means limiting the inward movement oi said squeegees on said rock-shaft, and a pair of stationary abutments positioned between said squeegees in the path of movement thereof.

16. In a stenciling apparatus, a movable stencil screen carriage including, a stencil screen movable with the carriage in its own plane in opposite directions from one extreme position to another, said screen being divided transversely to its directions of movement into adjacent color applying regions, a squeegeefor each color applying region, said squeegee being bodily movable in the directions of movement of the screen, means normally urging said squeegees toward each other, a pair of stationary abutments positioned in the path of movement of said squeegees and occupying a position between the latter, a pair of abutments on said carriage adapted upon movement oi the latter successively in opposite directions to alternately engage respective squeegees and move the same, and releasable means for locking said carriage in either of its extreme positions.

17. In a stenciling apparatus, a reciprocable stencil screen carriage including a stencil screen movable with the carriage in its own plane in opposite directions from one extreme position to another, said screen being divided into adjacent color applying regions, a rock-shaft mounted on said carriage and movable therewith, a squeegee for each color applying region, said squeegees being mounted for sliding movement on said rock-shaft, means normally urging said squeegees toward each other inwardly on said shaft, means limiting the inward movement of said squeegees on said rock-shaft, a pair oi stationary abutments positioned between said squeegees in the path of movement thereof, and releasable means for locking said carriage in either of its extreme positions.

18. In a ste'niling apparatus, a stencil screen carriage including a stencil screen movable in its own plane with the carriage in either direction from one extreme position to another, a squeegee for said stencil screen, means normally urging said stencil screen carriage inwardly of its extreme positions to a medial position, and releasable means for locking said carriage in either of its extreme positions.

HENRY W. SCHNEIDER.

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