US703388A - Stencil-printing machine. - Google Patents

Description

No. msaa. Patented luly l, |9o2`4 G. H. nAvls.

STENCIL PRINTING MACHINE.

(Apphcatxon led Apr. 17, 1901 (No Model.) 2 Sheets-Sheet I.

Patented July I, |902.

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GEORGE HOVVLETT DAVIS, OF BROOKLYN, NEV YORK.

STENClL-PRINTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 703,388, dated July 1, 1902.

Serial No. 56,267. (No model.)

To @ZZ whom, it may concern:

Be it known that I, GEORGE HowLE'rT DAVIS, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented a certain new and useful Stencil-Printin g Machine, of which the following is a specification.

My present invention relates to improvements in stencil-printing machines, and more particularly to machines adapted for print. ing expression characters, letters, or marks upon perforated music-sheets such as are employed to operate self-playing musical instruments, the impression being made through the medium of a stencil-sheet having said characters cut therethrough.

It is well known in the art that perforated music-sheets are now usually provided with appropriate expression characters to denotewhen certain stops or expression-pedals are to be operated or when the speed device is to be actuated, and it is the purpose of the presont invention to provide a machine for printing said expression characters or marks upon the music-sheets.

It is the obj ect of my said invention to provide a simple and inexpensive stencil-printing machine oi' the class described and to provide means whereby the printed music-sheet is given an opportunity to become dry before Briefly and broadly stated, the invention comprises supply-rolls for the stencil-sheet,

and music-sheet to be printed, suitableinking mechanism, and an endless conveyer belt or web,to which the said sheets are attachedIand by which theyare carried over Aidler-'pulleys through a given space, so as to allow theprinted music-sheet to dry before it is rewoun'd upon its receiving-roll.

Further, the invention comprises the novel features of construction and new combinations and arrangements of parts hereinafter described and then more definitely pointed out inthe claims which conclude this speciication.

Referring to the drawings, Figure 1 is a perspective view of a machine constructed in accordance with my invention. Fig. 2 is a longitudinal sectional view of the same. Fig. 3

is a detail sectional View of a portion of the Vsaid gears.

-rnediate ink feeding or distributing rollers S 9, and an impression-roller 10', said rollers being in frictional contact and one journaled above the other'. An ink-trough 12 lies directly below the ink-supply roller and is supported by arms 13, which are attached to the side standards at let, as indicated.

At the extreme frontof the two side standards-is journaled an upper power-shaft 15,

carrying-a conveyer-belt-driving roller 16, and below this shaft is journaled asecond or lower power-shaft 17, having 'a doublegrooved pulley 18 at one Iend and a gear- 'wheel 19 at its opposite end, said gear-wheel meshing with a similar gear 20,1ixed to the upper power-shaft, the latter-named shaft being also provided with a drive-pulley 21, over which passes a power-belt 22 to drive `The-printing stencil-sheet'23Y is carried by a supply-roller 24, whichis journaled in bearings 25 on the side standards close to the baseboard 1, said roller havingashaft extension 26 at one end, upon which is fixed a pulley 27, andover this pulley is" passed a cross-belt 28, which receives its power from the pulley 18 on the lower power-shaft 17. The musicsheet- 29 to be printed is mounted upon a roller '30, j ournaled in' bearings at the front of the side standards,as shown, said music-sheet, together with the printing stencil-sheet, being passed between the inking-roller 9 and irnpression-roller 10, itibein'g understood that the printing-stencil is located below the music-sheet and theinkforced through the perforations therein upon the music-sheet. The ink-distributing roller 8 is provided with a pulley 31, over which passes a belt 32 from the double-grooved pulley 18, whereby said vIs distributing-rollers, as well as the ink-supplying roller 7, are revolved.

The reference-numeral 33 designates an endless conveyer belt or web, which is of considerable length and which passes over suitable idler-pulleys 34, located at desired points throughout the room, and said belt or web passes over and is driven by means of the driving-roller 16. This conveyer belt or web 33 is provided at some appropriate point with a clamp consisting of a transverse plate 35, which maybe tightly pressed upon the .web by means of thumb-nuts 36, tapped upon screws 37, said screws being secured to the web and passed through openings in the plate 35. It will now be understood that by placing the ends of the stencil-sheet and musicsheet between the clamping-plate and-screwing the thumb-nuts tightly against said plate the said sheets will be secured to the web, so that if the web is moved or advanced the sheets must likewise be advanced and moved therewith.

Projecting upward from opposite sides of the side standards, between the stencil-roll and music-sheet roll, are two arms 38, each carrying a spindle-bearing 39, into which may be placed a music-roller to receive the musicv sheet after it has been printed and its end brought around by the conveyer-web, so as to be attached to said roller. One of said spindle-bearings is provided with a pulley 40, that receives motion through the belt 28, which is shifted from the pulley 27 after the stencil-sheet has been entirely unwound from the roll 24, whereby the sheet-receiving roll is rotated to wind the printed sheet thereon.

In operation the stencil-sheet and musicsheet are mounted upon their respective rolls 24 and 30 and their ends passed between the ink-supply roller 9 and impression-roller l0 and then secured by the clamping-plate 35 to the endless conveyer belt or web The machine being now set in operation, the conveyer belt or web drags the two sheets 23 and 29 forward between the inking and impression rollers, whereby ink is forced through the opening in the stencil-sheet and deposited upon the music-sheet, as will be understood. The conveyer belt or web is slightly longer than the longest music-sheet to be printed, which is probably thirty feet, more or less, and when the belt or web has made one complete circuit until the forward ends of the stencil-sheet and music-sheet pass over idler-pulley 34L they are released from the clamping device on the web and the music- @sheet is wound upon a receiving-roller, (not shown,) which is mounted in the bearings 39 of the two arms 38, said roller being revolved through the belt 28, which has now been placed over pulley 40. The stencil-sheet 23 fore, it being understood that these rollers 30 are removably attached in their bearings in any suitable manner so that they may be 'attached and removed at pleasure. The two sheets are now attached tothe conveyer web or belt by the clamping device and drawn forward, as heretofore explained with respect to the first operation. These operations are carried on continually until all the sheets are printed, and then the stencil-sheet may be wound up upon its roller 24, motion being imparted to the latter by means of the belt 28, which is now shifted back on the pulley 27 from the pulley 40.

Vhat I claim isl.. In a stencil-printing machine, the combination with an inking-roller and an impression-roller, of a stencil-sheet adapted to be passed between said rollers, a conveyer belt or web, and means for attaching the stencilsheet to said belt or web, for the purpose specified.

2. In a sheet-stencil-printing machine, the combination with an inking-roller and an impression-roller, of a pair of supply-rolls, a stencil-sheet mounted 'upon one of said rolls and adapted to travel between the nking and impression rollers, and an endless conveyer belt or web to which said stencil-sheet may be attached and by which it is conveyed.

3. In a sheet-stencil-printing machine, the combination with an inking-roller and animpression-roller, of a pair of supply-rolls adapted to receive a stencil-sheet and a sheet to be printed, an endless conveyer belt or web arn ranged in front of said rolls and to which one end of the said sheetsnlay be attached and by which they will be conveyed, and means for driving said belt or web.

4. In a sheet-stencil-printing machine, the combination with a suitable frame, of inksupplying rollers journaled in said frame, an impression-roller j ournaled above the inkingrollers, a pair of sheet-supply rolls, an endless eonveyer-.belt for the purpose specified, means carried by the belt for attaching a stencil-sheet thereto, means for driving said belt, and gearing operated by the belt-driving means for imparting motion to the ink- 4ing-rollers and delivery-roll.

5. vIn a sheet-stencil-printing machine, the combination with an inking-roller and an impression-roller, of a pair of sheet-supply rolls carrying the stencil-sheet and sheet to be printed respectively, an endless conveyer belt or web arranged in front of said rollers and to which one end of the said. sheets is attached and-by which they are conveyed, means for moving said belt or web, and a pair of arms 38, carrying bearings for a sheet-receiving roller.

6. In a sheet-stencil-printing machine, the combination with a suitable frame, of inksupplying rollers and an impression-roller journaled in said frame, a pair of supply-rolls journaled in the frame above the impressionroller, a main driveshaft 15 journaled in IOO IIO

front of said last-named roller, a driven shaft 17, arranged below the main drive-shaft, intermeshing gears mounted on said shafts, a

pulley on the driven shaft, and separate belts diate the said delivery-rolls, said arms carrying rotary bearings for a sheet-receivin g roller, and a pulley on one of said bearings, substantially as described.

S. In a stencil-printing machine, the combination with suitable printing mechanism, of an endless conveyer belt or web mounted adjacent to said printing mechanism, and provided with a clamping device by Which the stencil-sheet and printed sheet are clamped to said belt or Web,substantially as described.

Signed at Brooklyn, in the county of Kings and State of New York, this 8th day of April, A. D. 1901.

G. HOWLETT DAVIS.

Vitnesses:

BENNARD H. PoMERoY, THOMAS DUNN.

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