US1881837A - Stenciling machine - Google Patents

Description

Oct. 11, 1932. w MOATS 1,881,837

STENCILING MACHINE Filed April 12, 1950 3 Sheets-Sheet l Oct. 11, 1932. w MOATS 1,881,837

STENCILING MACHINE Filed April 12,1950 3 Sheets-Sheet 2 .252 vevfor Oct. 11, 1932. DE WITT T. MOATS 1,881,837

STENCILING MACHINE Filed April 12, 1930 3 Sheets-Sheet 3 plate.

Patented Oct. 11,1932.

UNITED STATES mm cortic s-ff.

DE WITT TALiuADen 'MOATS, OF 'coLUMBUs, OHIO,,ASSIGNOR To THE "D LQAULD' coMrAiuY, vor COLUMBUS, onro srnucii nve MACHINE Application filed April 12, 1930." Serial rename The present invention is directed to-gim provements in stenciling machines for applying enamel to name plates for automobiles, but it will be of course understood that it is not limited to such use since it can be used for applying enamel to plates for other-uses.

he primaryobject of the invention is to provide a device of this character so constructed that the stencil plate for applying the enamel to'the name plate or the like can be quickly placed upon the plate being decorated or enameled and removed therefrom after the application of'the enamel; and in such manner that the hands of the operator may both remain free in order that the plates" can be successively placed in position for receiving enamel through the stencil plate when the same is positioned on the plate.

Another and impo'rtantobject of the invention is to provide novel means for impart ing to the stencil' plate vibration previous to the lifting of the same from theplate being enameled to cause dislodgement ofenam- I elfrom the slots or-traceries of the stencil Another object of the invention is to'pro vide a device of this kinds'o constructedgthat a large range'of adjustments can be made-to permit the use of stencil plates of various sizes. V l

Another object of the invention is to provide a device of this type'so constructed that the stencil plates can be easily and quickly interchanged. Y

Another object of the invention is 'to pro 'vide a device of this character constructed in such manner that the stencil plates have smooth and unobstructed"upperv surfaces :to permit the use of a blade spre'ader.

'Another object of the invention is to proswinging frame so constructed that the stencil plate after once being attached. to th'e frame, can be used without the necessityof v holding the same by hand, thereby preventing dropping the sameTduef-to, careless handling Obviously when a stencil plate is carelessly handled and droppedthe same becomes damaged and worthless, therefore'a machine constructed in accordance, with my Figure 8 is an enlargedperspective view of of one arm.

served that therod: 5 constitutes a pivotal 'connecti on for the frame 6. 'vide a machine of this kind including a invention not only promotes production, but eliminates unnecessary replacement ofsten acil plates. 1

" With these and other objects in View, this invention resides in thenovel features "of con- 55 istruction, formation; :combination and ar rangements of-parts to be hereinafter more fully described, claimed and illustrated in theaccompa-nyingdrawings, in which':-

Figure 1 1s a perspectivevlew showing the 0 stencilplate in a'partly elevated position.

Figure 2' is as'imilar view showing the stencil plate in itsoperative-position. a

Figure 3 is a side elevation. 1 t Figure 4 is a detail view, showing the detent '65 and arm in the position assumed when the stencil plate is resting upon the name plate.

Figure 5 is a detail view showing the position of the detent just previous to the release of the hammer. v

' Figure 6 is'a detail view" showing the position of the detent after release of the hammer.

Figure 7 is. a transverse detail sectional view through the stencil plate and name plate.

one of-the clamps i a Figure 9 is a fragmentary perspective view showing theistencilplatetrunnion andslot Referring to. the base which may be secured by bolts or screws 2 to a workbench or othersupport'3. Mounted uponth'e base adj acentthe ends thereof are bearing blocks 4-4 in which are j ournaled the ends of the rod 5 of the frame 6. The

frame 6 further consists of side bars 7'7 and parallel spaced rods 8 and 9, the ends of which being fixed in the bars 7 7 It will be 0b- A'pair of stencil supportingarms 1 0 vare 1 employed, which are slidablyadustable upon 7 the rods 5,8 and .9, said arms being heldiin selected adjusted positions through the medium of the clamps 11 carried by the rods drawings, l designates a B0 freelythrough the slots when the plate is in angular relation with respect to the arms. After the trunnions enter the openings 16 the p'late'is turned to lie in a plane with the arms 10, thus connecting the plate and arms.

The stencil plate is provided with slots 17 of a selected design and is further provided with a bottom recess 18 for receiving the name platesl9. The name plates 19 are formed {with recesses20 corresponding to the con- .31, oneupon figuration of the slots 17 of the stencil plate so that when the stencil plate is resting upon the name plate the slots thereof will register. with the recesses of'the name plate.

Having its inner end suitably fixed to'the' base 1 is a bar 21 upon the outer end of which is clamped a rest 22 upon which the name plates 19 are adapted to rest. The rest 22 may be adjusted longitudinally of the bar 21 through the medium of the clamping blocks The rest carries studs 24: to positively position the name plate thereon.

Fixed to the'rod 5 is an arm 25 which is pivotally connected to the bell crank lever 26 by a link 27, said lever being pivotally connected to the bracket 28 secured to the bench 2. The bell crank lever has pivotally connected thereto a rod 29 connected in any suitable manner to a pedal, not shown, for opera.- tion by the foot of the operator.

The armr25 has carried'therebya bolt 30 and to which are pivotally connected the links each side of said arm and normally maintained in spaced relation thereby.

These links are formed with hooks'32 and seats 33 provided by slotting the links. The links are'capable of sliding upon the rod 8 so that the hooks and seats will alternately engage said rod, the purpose of which will appear later. r

Also pivotally connected tothe bolt 30 is a detent 34 having hook 35 upon its free end,

fwhichis rounded, as at 36. 'Pivotally mount- }ed on the rod 8 is a head 37, there being-a coil spring 38 connecting the detent and head.

' The head has carried'thereby a shaft 39,

upon the outer end of which is mounted a hammer 40, in the form of a ball, said hammer being so located that-the impact of its blow will be imparted to the rod 9 of the frame to transmit thereto a shock, which is also transmitted to the stencil plate and at a time just previous to it being lifted from the name plate 19. Obviously the recess 18 of the stencil plate will positively holdthe same upon the rest 22 while the enamel is being applied.

Briefly the operation is as follows:

To rock the frame 6 upwardly and permit the operator to'place a name plate upon the rest 22 it is only necessary to actuate the the bell crank lever 26 and'as the arm 25 swings r'earwardly the links 31 slide upwardly until the hooks 32 thereof grasp the rod 8,

' whereupon the frame and arms 10 are lifted,

thus elevating the stencil plate so that the rest 22 is readily accessible. The. arm 25 is then swung forwardly to permit the frame to swing downwardly until the parts are again 7 in the position as shown in Figure 4:. The

enamel is then applied to the stencil plate and enters the corresponding. recesses'of the name. plate-withwhich register the slots of said stencil plate.

Owing to vthefact that theupper-surface of thestencil plate'is smooth and unobstructedra suitable-blade or stylus may be conveniently slid thereoverto force the enamel through the slots into. the-recesses of the name plate. After the applicationsof the enamel the bell crank lever is rocked reversey aridtakes: with it the detent 34, the hook 35 whereupon the arm 25 swings rearwardly of which is now engaged with the-head 37.

As the arm 25 continuesto swing rearwardly the detent rocks the head'37 and lifts the shaft 39, and thus the hammer 40, and at which time the spring 38 is under tension. In Figure 5 the hook 35 is shown in a position ju'st previous to it disengaging the head i 37, and at which time the hooks 32 ofthe links are about to grasp the rod 8 so that the frame 6 will be swung upwardly tolift the stencil plate 12, and just previous to the engagement of the hooks 32 with the rod 8- the hook 35 of the detentrides from engage ment with head 37, whereupon the spring 38- nowactsto swing thesha ft 39 and the hammer 40 downwardly in order that the ha'm-. mer will sharply strike the rod 9, thus viif brating the frame 6'to such an extent that stencil plate will be dislodged therefrom, and

prior to the lifting of the stencil plate from the name plate occupying the rest 22. Further rearward swinging of the arm swings the'frame fi upwardly since the'hooks 32 are now engaged-with the rod 8 of said frame. The name plate can'now be liftedv from the ing the frame 6'downwardly, and at which any enamel remaining in the slots of the 7 time the detent 34 is in the position as shown 7 V in Figures 3 and'6; It will be noted that 11 L when" the stencil plate is restinguponthe name plate the latter will be held firmly upon the rest 22. When the stencil plate rests uponthe name plate the movement ofthe 1,

frame is arrested, but the arm 25 continues to swing forwardly from the position assumed in F igure 6 to the position as shown in Figure 4. When the seats 33 of the links engage the rod 8 the hook 35 drops into engagement with the head 37, the rounded surface 36 of the hook riding easily over the similar surface 41 of the head. When the hook 35 is again in this position operation of the bell crank lever and consequent swinging of the arm 25 will again actuate the hammer 40 prior to the lifting of the frame and stencil plate.

Since the seats 33 of the links 31 engage the rod 8 swinging of thearm 25 a forward direction is limited, but not before the hook 35 can drop into interlocking engagement with the head 37 It will thus be seen that the stencil plate can be lifted and lowered in such manner that both hands of the operator may be free, and that it will not be necessary to handle the stencil plates except when interchanging the same.

A tray 42 may be suitably secured to the bench 2 under the rest 22 so that surplus enamel which may drop during the operation of the machine may be collected.

Since the arms 10 may be adjusted later ally upon the rods of the frame stencil plates varying in size may be used, and since the stencil plates are all provided with similar trunnions 14, they can be easily and quickly removed and replaced in the slots 15 and openings 16 of the arms 10 upon merely swinging the plates in angular relation with the arms or in a plane therewith, according to the option of the operator.

WVhat is claimed is 1. The combination with a rest for supporting a plate having recesses therein for receiving enamel, of a stencil, means for swinging the stencil for engagement on the plate for placing the slots thereof registration with the recesses of the plate to permit passage ofenamel through the slots of the stencil into the recesses of the plate, means for swinging the frame upwardly, and means operable for swinging the stencil away from the plate to subject the frame to vibration previous to disengagement of the stencil from the plate.

2. The combination with a base, of a frame pivotally connected therewith including rods, a restsupported by the base, a pair of arms slidably adjustable on the rods, a stening trunnions carried thereby for detachable engagement in said slots, a head fixed to one bar of the frame and having a hammer connected therewith, an arm fixed to the frame, a detent carried by the arm for engaging the head to actuate the hammer for striking the frame to impart vibration to the forced through the slots of the stencil when resting upon the plate, an arm fi-Xedto the frame, a detent pivotally connected with the arm, a head fixed to the frame, a hammer supported by the head, links pivotally carried by the arm and slidably engaged with a rod of the frame, said head being adapted to engage the detent when the stencil is resting upon the plate and to disengage the detent when the frame is swung upwardly and at a time before the stencil is lifted from the plate to release the head to permit the hammer to strike the frame and impart vibration thereto, and to the stencil, said links serving to complete the upward swinging movement of the frame upon actuation of the arm, and means for actuating the arm.

5. The combination. with a base, of a frame pivotally connected thereto, a stencil swingable with the frame, an arm fixed to the frame, a detent pivotally connected to the arm, a head fixed to the frame, a hammer carried by the head, said stencil when resting upon the plate permitting the passage of enamel through the slots thereof for application to the plate, means for swinging the arm to actuate detent to swing the head rearwardly to operate the hammer upon disengagement of the detent and head, whereby the hammer is released to strike the frame to impart vibration thereto before the frame swings to a position for lifting the stencil from the plate.

In testimony whereof I affix my signature.

DE W ITT TALMADGE MOATS.

cil detachably connected with the arms,

means for swinging the frame to lift or lower the arms, and thus the stencil to alternately place and remove the same from engagement with a plate resting upon said rest, as and for the purpose set forth.

3. The combination with a base, of a frame pivotally connected therewith, a pair of arms slidably adjustable on the frame, said arms having slots in their free ends, a stencil hav-

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