US2246000A - Stencil apparatus and the like - Google Patents

Description

June 17, 1941. J, H, POLLARD sTENcIL APPARATUS AND THE LIKE Filed April 4, 19:58 2 sheets-sheet 1 7 .Z w o Z y@ M M ,51? IIJ.. 4J ji, ufl fr@ M June 17, 1941. J. H. POLLARD STENCIL APPARATUS AND THE LIKE Filed April 4. 1938 2 Sheets--Shee'rl 2 ZOW Patented June 17, 1941 Unirse STATES PATENT cries 'STENCIL APPARATUS AND THE LIKE John H. Pollard, Dallas, Tex., assigner of onehalf to Arthur Baroniand one-half to Richard Burdick, both of Dallas, Tex.

Application April 4, 1938, Serial No. 199,788

9 Claims.

This invention relates to new and useful irnprovements in stencil apparatus and the like.

One object of the invention is to provide an improved apparatus whereby display characters, such as letters, figures, symbols, objects and the like, may be readily and economically produced with plastic material or paint upon pervious, foraminous or impervious surfaces, whether rough or smooth.

Another object of the invention is to provide an improved apparatus for producing plastic or paint displays of the character above set forth having means whereby the support under the display medium may be removed without moving or disturbing either the stencil or the display medium, thus preventing smearing of or injury to the freshly deposited display as well as making for simplicity and ease of operation.

A particular object of the invention is to provide a table, or the like, having means for securing a .display medium and a stencil thereon and a hinged panel located below the stencil, arranged to be swung downwardly out of alinement with the table, so as to permit placement or positioning of the medium on which a display is to be applied, whereby danger of smearing plastic material, which may have accumulated on the panel during the previous operation, on the medium, while the same is being positioned, is eliminated.

A further object of the invention is to provide an improved apparatus of the character described having means for supporting and latching a hinged panel beneath a stencil and a medium, said means being actuated by one of the limbs of the operator to move said means away from the panel, whereby the weight of the panel will cause saidpanel to swing downwardly away from the underside of the medium to leave the hands of the operator free for other work.

A construction designed to carry out the n- Vention will be hereinafter described, together with other features of the invention.

The invention will he more readily understood from a reading of the following specication and by reference to the accompanying drawings, in

which an example of the invention is shown, and

wherein:

Figure 1 is a plan view of an apparatus constructed in accordance with the invention, the stencil carrier and the hold-down frame being broken away,

Figure 2 is an enlarged isometric View of the apparatus showing the stencil carrier in its upper Position,v

Figure 3 is an enlarged vertical, sectional view taken on the line 3 3 o-f Figure 1, and showing the panel in its upper position,

Figure 4 is a View similar to Figure 3 and showing the panel in its lower position, and

Figure 5 is an enlarged front elevation of the apparatus. Y

In the drawings, the numeral I il designates a table or support, having suitable legs I Iand a at top I 2. A rectangular opening I3 is provided in the front portion of the table top I2 and, preferably, in the central portion thereof. A complementary panel I 4, having a free fit within the opening I3 and lying flush with the upper surface of the top I2, is secured upon a pair of forwardly extending arms I5. A pair of blocks I6 .are mounted beneath the table top behind the arms I5 and in horizontal alinement therewith, whereby the rearends of said arms may be fastened to said blocks by hinges I'I. Thus, the panel I4 is secured to the tableby means of the arms I5, blocks I6 and hinges I1. Y

A horizontal bar I8 is mounted upon the back surface of the front legs II and is located near the upper ends thereof. A yoke-shaped prop I 9, having a pair of vertically-extending legs 2U, is secured to the bar I8 by hinges 2I, whereby the prop will swing with relation to said bar. The lower ends of the legs 20 are connected together' by a cross ,bar 22, so that the said legs will swing togetheror simultaneously upon their hinges 2l. The upper or free ends of the legs engage the underside of the arms I5 for supporting said arms and the panel lli in its horizontal or upper position. Obviously, when the legs 20 of the prop I9 are in their supporting position they will be perpendicularrto the arms I5 and support them in their horizontal position, as is clearly shown in Figures 2, 3 and 5. It is noted that the legs 25 are pivoted nearer their upper ends, whereby the combined weight of the portions of the legs below the hinges and the cross bar 22, overbalances that portion of the legs above the hinges and constantly urges the lower portions and bar 22 downwardly to their vertical position.

The outer end of one of the transverse arms I5 is extended so as to project outwardly from the front edge of the table I0 to form a lever or handle I5 for lifting the panel Ill to itshorizontal position. The cross bar is preferablyl spaced from the oor, or other support, so as to be disposed opposite the knee of the operator. whereby an inward pressure against the bar with the knee Will swing the arms 20 inwardly, as

shown in Figure 4, to lower the panel I4. The panel I4 may be quickly and easily swung upwardly by lifting the same by its handle I5', and such raising of the panel will permit the prop I9 to automatically swing to its vertical position with its legs engaging beneath the arms I5 to support and latch the panel I4 in its horizontal position flush with the top of the table. Thus, it is seen that the panel may be quickly and easily lowered or raised by the operator, as desired.

A holddown frame 23 and stencil carrier 24 are hinged at their rear ends to a cross head 25 secured to the underside of the table I0 at its rear portion, and are adapted to swing vertically over the table top I2 (Figure 2). The frame 23 is provided therein with longitudinal wires 26, and a transverse wire 26 is secured therein near its forward end, said wire extending across the wires 26. A supporting cross bar 21 is fastened to the underside of the frame 23 near its rear end and suitable spring-pressed latches 28, having coil springs 28', are hinged to said bar to hold said frame in an elevated position.

The stencil carrier 24 includes a yoke 29 which has handles 29' on its forward end, provided for convenience in raising and lowering the same. The yoke is adapted to fit into the frame 23 and has its sides connected about midway thereof by a header 30, which, together with the sides and front of the yoke, comprises the stencil support. A transverse hanger bar 3| is secured to the top arms of the yoke near their rear ends and the ends of said bar overhang or extend beyond the sides of the yoke sufficiently far to provide space between said ends and the yoke arms for the sides of the frame 23. Suitable latches 32 depend from the outer ends of the hanger bar 3| and are hinged thereto to hold said carrier in an elevated position. Release rods 33 and 34 are secured to the latches 28 and 32 provided on the frame 23 and carrier 24 to unlatch and lower the same over the table.

In operation, the holddown frame cil carrier are swung to their raised positions and held so by the latches. The panel I4 is lifted to its horizontal position by the handle I5' and held there by the prop I9. Then the medium upon which the display is to be produced, is placed upon the table top I2 with the panel I4 under that portion of the medium where the display is to be located. Any pervious, foraminous or impervious medium may be employed.

The medium having been placed -in position, the release rod 33 is swung by the operator to release the latches 28 and allow the frame 23 to be swung down over the medium. The wires 26 and 26 within the frame hold the medium securely in place. The release rod 34 is then operated to release the latches 32 and permit the stencil carrier 24 to swing down into the frame 23, thereby positioning the stencil above the medium. A quantity of compound or composition. of which the display is to be formed, is

23 and stendeposited in the stencil frame 35 and the operator,

by means of a squegee or flat blade, spreads the compound so that it passes through the openings in the stencil. Where the medium is of a forami nous` or pervious nature, portions of the compound will pass therethrough and engage the panel I4, thus forming the display on the underside, as well as upon the upper side of the medium.

After the display has been formed on the medium, the stencil carrier 24 is swung upwardly and latched in its raised position, whereby the stencil is removed from the medium. The frame 23 is then swung upwardly and latched in an elevated position by its latches 28, after which the medium is removed from the table and panel. It is noted that during the raising of the carrier, the wires 25 and 26 in the frame 23 hold the medium in place upon the table top I2, thereby preventing smearing of the display.

During the applying operation, and particularly where a foraminous medium is used, the plastic compound or paint employed for forming the display, will pass through the medium and accumulate on the panel. If the panel remains flush with the table top, it is manifest that it would be difficult to position the next medium on the table without smearing some of this accumulated plastic compound on the second medium. Therefore, after the first medium is removed, as has been explained, the prop I9 is swung rearwardly upon its hinges 2| by the operator of the apparatus, who applies an inward pressure against the bar 22 by placing his knee or foot against said bar to shove or push it rearwardly, thereby removing the legs 20 from their engagement with the transverse arms I5. Manifestly, since the panel I4 and arms I5 are no longer supported, they will swing downwardly upon their hinges I1, and the panel will be swung downwardly out of alinement with the table top. The next medium may then be readily placed on the table without danger of smearing.

After the next medium is in place, the panel I4 is again lifted to its horizontal position whereby the prop I9 automatically swings forward to support said panel, so that the above set forth operation may be repeated. Although the panel makes for easy placement of the next succeeding medium and is ordinarily swung downwardly after the preceding medium is removed, it is pointed out that said panel could be swung downwardly away from the medium before the carrier and frame are swung upwardly, prior to removal of the medium from the table. By swinging the panel away from the medium, removal of the medium is facilitated and danger of smearing the newly formed display, during removal of the medium, is obviated.

'I'he description which has been given recites more or less detail of a particular embodiment of the invention, which is set forth as new and useful; however, I desire it understood that the invention is not limited to such exact details of construction, because it is manifest that changes and modifications may be made, within the scope of the appended claims, without departing from the spirit of the invention.

Whatl I claim and desire to secure by Letters Patent is:

1. In an apparatus of the character described, a support, means for securing a medium upon said support as well as a stencil upon the medium, whereby coloring material may be applied to said medium through the stencil, the support having an opening therein which is of less area than and which underlies the medium, and a panel closing said opening and arranged to be removed therefrom to facilitate positioning of the medium on the support.

2. In an apparatus of the character described, a support, means for securing a medium upon said support as well as a stencil upon the medium, whereby coloring material may be applied to said medium through the stencil, the support having an opening therein which is of less area than and which underlies the medium, a panel hinged to the support and arranged to close said opening, and means engaging the outer portion of the underside of the support for releasably holding said panel in a position closing said opening.

3. In an apparatus of the character described a support, means for securing a medium upon said support as well as a stencil upon the medium, whereby coloring material may be applied to said medium through the stencil, the support having an opening therein which is of less area than and which underlies the medium, a panel hinged to the support and arranged to close said opening, and a pivotal brace member below the panel and adapted to engage said panel to hold the same in a position closing said opening, the member being located at the forward longitudinal edge of the support so as to be operable by the limb of the operator standing by said support to permit said panel to swing downwardly out of the opening.

4. In an apparatus of the character described, a support, means for securing a medium upon said support as well as a stencil upon the medium, whereby coloring material may be applied to said medium through the stencil, the support having an opening therein which is of less area than and which underlies the medium, a panel hinged to the support and arranged to close said opening a brace for said panel free from positive connection with the panel and being pivoted off-center intermediate its ends so as to move automatically to its latching position when the panel is swung upwardly, and means secured to the brace for disengaging the same from the panel, whereby said panel may swing downwardly.

5. In an apparatus of the character described, a support, means for securing a medium upon said support as well as a stencil upon the medium, whereby coloring material may be applied to said medium through the stencil, and a panel hinged to the support and underlying that portion of the medium to which the coloring is applied andarranged to swing downwardly to facilitate positioning of a medium on the support.

6. In an apparatus of the character described, a support, means for securing a medium upon said support as well as a stencil upon the medium, whereby coloring material may be applied to said medium through the stencil, a panel hinged to the support and underlying that portion of the medium to which the coloring is applied and arranged to swing downwardly to facilitate positioning of a medium on the support, and a pivoted brace member arranged to engage the outer portion of the underside of the panel to hold the same in a raised position.

7. In an apparatus of the character described, a supporting structure, a at table supported on said structure for receiving a medium on which display characters are to be formed, said table having an opening therein which underlies the medium, a hinged panel for closing said opening, and a brace pivoted intermediate its ends to the supporting structure adapted to engage the underside of the panel to hold the panel in its raised position closing the opening, the pivot being nearer the upper end of the brace so that the brace automatically moves to its bracing position when the panel is raised.

8'. In an apparatus of the character described, a supporting structure, a flat table supported on said structure for receiving a medium on which display characters are to be formed, said table having an opening therein which underlies the medium, hinged panel for closing said opening, a brace pivoted intermediate its ends to the supporting structure below the table and arranged to swing to a vertical position whereby one end engages the underside of the panel to hold the same in a position closing the opening, the pivot point of the brace being nearer that end engaging the panel whereby the tendency of said brace is to swing to a vertical position, and means for limiting the swing of the brace to halt it in a vertical position.

9. In an apparatus of the character described, a supporting structure, a flat table supported on said structure for receiving a medium on which display characters are to be formed, said table having an opening therein which underlies the medium and which lis of a smaller area than the medium supported on the table, a hinged panel for closing said opening, a brace pivoted intermediate its ends to the supporting structure below the table and arranged to swing to a vertical position whereby one end engages the underside of the panel to hold the same in a position closing the opening, the pivot point of the brace being nearer that end engaging the panel whereby the tendency of said brace is to swing to a Vertical position, and means for limiting the swing of the brace to halt it in a vertical position.

J QHN H. POLLARD.

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