US516799A - Machine for printing glass - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. J. BUDD. A MACHINE FOR PRINTING GLASS.v

Patented Mar. 20, 1894";A

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J. BUDD.; MACHINE POR PRINTING GLASS.

Imm-,ed Mar. 2o

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FFICE@ PATENT JAMES BUYDD, or LONDON, ENGLAND.

MACHINE FOR PRI NTING ON GLASS.

SPECIFICATION forming part of Letters Patent No. 516,799, dated March 20, 1894.

Application filed April 5,1893.

T0 @ZZ whom it may concern:

Be it known that I, JAMES BUDD, a subject of the Queen of Great Britain, residingat London, England, have invented a new and use` ful Machine for Printing on Glass or Analo- Igous Surfaces; and I do hereby declare that the following is a full, clear, and exact de` scription of the invention, which will enable Lothers skilled in the art to which it appertains to make and use thesame.

According to myv invention the sheet of glass or other like material to be printed is laid upon a yielding bed and the design is transferred thereto from a lithographie stone or an engraved or 'other printing surface byv means of atransfer roller, the surface of which, is composed of a soft or yielding material capable of taking the ink from the stone and of transferring it to the glass. In practice I prefer that the bed for the glass and the lithographic. stone should be arranged upon a sliding table adapted to move beneath the transfer roller.

To enable my invention to be fully undelstood I willdescribe the same by reference to` the accompanying drawings, inl which-..

Figures l and 2 are a side elevation and plan respectively of a machine for printing? glass according to my invention. Fig. 3 is a section on the line 3-3, Fig. l. Fig. ff is a plan of the sliding table; and Fig. 5 is a section of the same on the line 5-5. Figs. 6 and V7 are an elevation and sectional view drawn to an enlarged scale of a portion of the transfer roller, illustrating the construction of the same. Fig. 8 is a section on the line 8-8, Fig. 2, drawn to an enlarged scale.y s

In constructing my machine I provide a cast iron framework comprising two side frames a, a suitably connected together, for instance by means of two cross-frames b, b.

c is the table for carrying the elastic bed and the lithographie stone or printing surface, the said table sliding between the side frames a, ct and being supported by means of rollers d, CZ upon the angle bars c, @secured to the said side frames. The rollers d, oZ -are carried between bars cZ, cZ, as shown most clearly in Fig. 2, and the part of the under side of the sliding table in contact with the seria No. 469,120. (No man.)

in Fig. 3, so that the said rollers shall maintain their properpositions relatively with the table. Motion is imparted to the said table by means of a rack f on its under side with which engages a gear-wheel g mounted upon a shaft h having secured to one end a Wheel Z engaging with a wheel j having a crankhandle la xed to it in such a manner that when the said crank-handle is rotated the sliding table will be reciprocated.

Z is the elastic bed upon which the sheets of glass to be printed are laid. As shown in the drawings, this elastic bed is composed of a vpiece of wood covered with elastic material such as printers composition, the said bed being carried between the sides of the table and supported upon screws Z, Z, the adjustment of which enables the said bed to be accurately fixed. m is a platform which is also carried between the .sides of the sliding table and upon screws m', m in a similar manner to the bed Z, the said platform serving to carry the from which the design is to be transferred.

- n is lthe roller for transferring the design from the lithographie stone to the glass, the shaft n of the said roller being carried in bearingsnz, n2 adapted to slide in vertical slots Motion is impartedto the said roller from the sliding table c through the medium of the gear-wheels p, p fixed to the shaft n and engaging with the racks p', p' formed upon the upwardly projecting edges of the slidingtable c, as shown in Figs. tand 5. The said transfer roller or cylinderis advantageously constructed in the following manner, thatis to say, upon the spindle n are fixed two disks q, q which for convenience sake are preferably iitted inside the wheels p, p, as shown most clearly in Fig. 3, and between the said side-pieces q, g are arranged a number of wooden disks q', q to which are fastened wooden bars q2, q2, Fig. 7. Upon these bars q2 is laid a coating Q3 of soft material such as printers composition, the said material being preferably cast in a mold. As the surface of this coating g3 would generally be more or less defective (for instance owing to the presence of air bubbles therein) and thus unfit for transferring the said rollers is grooved, as shown most clearly design from the printing surface to the glass,

lithographie stone or other printing surfacev in brackets o, o upon the side frames a, a.,

its

` I advantageously lay over the surface of this cylinder a thin layer g4 of specially prepared printers composition, the said layer g4 being fixed to a canvas backing g5, the edges of which, when the said backing is wrapped around the cylinder, are connected, for instance by lacing q, as shown in Fig. 6.

fr indicates a lithographie stone fixed upon the platform on, and sindicates a sheet of glass to be printed, the said sheet being fixed in position upon the yielding bed Zby means of the gages t, t. The gage t is in the form of a bar, the two ends of which are adapted to be xed by bolts fu, sliding in slots fu. in the bed land having thumb-nuts u2; the side gage t is also fixed by means of a bolt u, sliding in one of the slots u', and a nut u2.

rlhe operation of the apparatus as thus far described is as follows:-Assume the sliding table to he in the position shown in Figs. l and 2, that is to say, to the left hand side of the transfer roller 'n with the lithographie stone r upon the platform m and the sheet of glass s upon the yielding table Z, the said stone and piece of glass being so adjusted by means of the screws Z', Z that as they pass under the roller 'n they will come in contact with the transfer roller. Thelithographic stone being properly inked the crank-handle k is rotated to move the table c to the right hand side of the roller In, whereby as the lithographie stone passes under the roller fn, the ink is taken therefrom by the said roller and as the movement continues the glass s passes under the said roller 'n so that the ink upon the said roller is transferred to the glass.

In order that on the return movement of the table the transfer roller n shall not come into contact with the lithographie stone and the glass sheet, I provide for lifting the said roller. As shown in the drawings this is accomplished by arranging at the sides of the machine rods fu, o, the upper end of each of which bears against one of the bearings 'n2 of the shaft n while the lower end rests upon a cam w, the said rods being slotted at o to pass over the shaft 7L. The cams 10,10 are xed on the two ends of a shaft .fr to which is also fixed a lever y attached by a link y to a slides movingin a groove in one of the frames a. When the roller n is in position to come into contact with the lithographie stonerl the ends of the rods v, u are in contact with the flat sides of the cams w, w, as shown in Fig. l. When it is desired, however, to raise the said roller the slide z is moved to the right, whereby the shaft x and the cams are rotated suiiieicntly to bring the curved portions of the said cams beneath the rods fu.

The sheets of glass printed in the manner hereinbefore described may be dusted over .with mineral colors for the purpose of tinting and then fired in a kiln.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim isl. In combination with a suitable frame work, a reciprocating table divided into two parts, a yielding surfaceadj ustably supported at one end of said table, and `an adjustable platform m for the printing surface at the other end and a transfer roller arranged above said table, substantially as described.

2. In combination with the table carrying the printing surface and article to be printed, a roller for transferring the design from said surface to the article comprising a series of disks, bars secured to the peripheries of the disks, a coating of soft material surrounding said bars and an outer covering of canvas having its outer face suitably coated encircling the soft material, substantially asvde--f scribed.

JAMES BUDD. Witnesses:

G. F. REDFERN, JOHN E. BoUsFrnLD, Of the firm of G. F. Redfern Oo., 4 South Street, FLnsbmy, London, Patent Agents.

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