US1001226A - Multicopying-machine. - Google Patents

Description

A. C. -STALEY.

MULTIGOPYING MACHINE.

A?PLIOATION FILED JULY 6,19o9\.

Patented Aug. 22,1911.

4 SHETB-SHEET 1.

v A. c'. sTALBY. MULTICOPYING MACHINE.

v APPLICATION FILED JULY 6, 1909.

Patented Aug. 2,2, 1911.

A. G. STALBY.

MULTIGOPYING MACHINE. APPLICATION FILED JULY 6. 1909.

1,001,226.- Patented Aug. 22, 1911.

4 SHEETS-SHEET 3.

A. G. STALEY.

MULTIGOPYING MAGHINE. APPLICATION FILED JULY 6, 1909.

Patented Aug. 22, 1,911.

4 SHEETS-SHEET 4.

lilI

' chines, o f which the following is a speci cation.

`ingroller mounting and construction,

UNITED sTATEs PATENT oEEioE.

AMOS C. STALEY, 0F CHICAGOILLINOIS.

MULTICOPYINGLMACHINE.

1,001 ,226.4 Specication of retiennent. Patented Aug. 22,1911.

Application mea July s, 1909. serial No. 506,117.

ful Improvements .in Multicopying-Ma My invention relates to multi-copying machines, and particularly to machines o the; general type illustrated in my Patent- 871,531, dated November 19, 1907, wherein! a paper-carrying element cooperates inter-i mittently with a gelatin-surfaced printingI roller, yieldingly positioned with relation; thereto, so that the paper-carrying elementi rotatively drives the printing roller. .i My present invention provides improvedi means for positively operating a papergripping ineans, enabling the use ofv a seg-. mental paper-carrying element with a maximum proportion of its periphery functlonally eective; provides an improved printwhichfacilitates adjustment of the print-ing tension, admits adjustmentA of the printing` roller to secure the desired presentation ofl Ydifferent portions of the roller in initiall printing position,

and enables the use of a gelatinized web or fabric lin lieu of a continuous gelatinous coating directly applied upon the roller; provides means for preventing adherence of the paper to the papercarrying element by e ectriiication of the parts; and generally and in detail improves the construction and operation of the machine.

In the drawings, Figure 1 is a perspective l of a complete machine; Fig. 2 is afront elevation thereof; Fig. 3 is a section of a part of the machine on line 3-3 o f Fig. 2; Fig. 4 is a sectional detail showing the roller carriage; Figs. 5, 6, and 7, are det-ails of parts; Figs. 8 and 9 are views similar to Fig. 3 with parts in diiferent working positions; Fig. 10 is a detail; and Figs. 11 and 12 are transverse and longitudinal sections of a printing roller,

In the embodiment of my invention shown, the machine comprises frame sides 20 of suitable rectangular shape and cast-iron construction united -by cross rods 21,21, at suitable points, leaving free or `open the entire rear and bottom sides of the machine.

.22 indicates a paper feed table having suitable guides 23 and 24 mounted thereon, and spanned byl carrying spring which the paper may mechanism carried a paper-carrying cy inder segment t28 mounted on a transverse shaft 29, extending nearly centrally through be fed to the gripping the machine and carrying the operating han-Y dle 30 by which it may be rotated continuously and unidirectionally, vreverse movement of the segment being prevented by the coaction of a /pawl 32 upon the frame member with one or more ratchet teeth 28 in the hub of the segment.

The paper carrying segment is a hollow rims, spiders, and hubs, preferably made of between the segment ends being comparatively small, not to exceed-say-one third of the periphery of the segment, and the forof the progression of the segment being provided with a relatively soft facing strip 34: of leather or the like with which coperates the edge of a curved gripper-blade 35, mounted for oscillation with the shaft 36,

ture and 'cut away, as at 35', at points where it passes the feed 'fingers 26 and `27.

For effect-ive work, the gripper-plate must be positively held witha relatively heavy pressure upon its facing chine is in operation, and to this end I mount upon the gripper shaftl 36 a fixed plate 37 and a loose or rotatively adjustable cam-lever, 38, adjustable as to its position upon the shaft through the agency of two screws 39 and 39 working through an overhanging lip 37 of plate 37. The cam-lever 38 has its front face, close to the shaft 36, shaped so as to provide inner and outer cam surfaces, and by engagement of the lower cam surface with a fixed stud 41 on the proximate side frame as the gripper nears its uppermost point in'rotation, the gripper will be moved while by contact with a fixed stud of the outer cam-surface 42 upon the proximate side frame, just after the gripper passes the feed fingers 26 and 27, said "gripper will be moved to closed position. For holding the gripper in either position with'a yie ding tension to prevent unintentional displacement of the gripper, the plate 37 has mountsegmental shell supported on suitable end ward edge'of the segment in the directionl pivoted in the end rims of the segment strucfrom closed to opened position;

a bridge and strip- table 25A fingers 26 and 27, through cast metahffrom the shaft 29, the open space strip while the maed on its inner face a pin 43 engaged by a loop 44y connected to a spring 45 having its olppositefend attached to the periphery of t e segment in such a way that t e move` ment of the -pin 43 resulting from the change of position of the plate 37 in open- Avgripper in closed `siderable intensity is deslrabl exerted upon ing and closing the/gripper throws said pin to one side or the other o the line drawn between the point of attachment of spring f a cam-plate 47 lloosely vmounted upon the sector shaft 28, vadjacent the contiguous frame member, thecam being in the form of a rentrant sector, or disk with only a relatively small sector removed. When the swinging the relatively long grip er is closed, the lever 38 is swung forward) and as the roller 46 rides around on the periphery of the cam 47 from the position shown in Fig. 8, a pressure is maintained upon the gripper through the long leverage of the cam-lever 38 adequate for all practical 'paperigrippingv purposes. During such pressure-engendering engagement of the lever and cam-which should eld statlonary by the abutment of a pin 48 thereon against a vertical element of the side frame member, and the cam has the effect of a fixed or rigid construction The angular space which may economically be afforded in the machine for lever 38 rearwardly to open the gripper 1s so small, however, thatthe cut-awayportion of the cam cannot be made of large extent to permit the roller 46 to swing freely backward through its necessary arc and yet retain for paper-carryingy urposes a properly large proportion of t e segmentsurface. For

this reason the cam 47 is left loose upon theA carrying 'shaft so that it may be moved freely backward, a suitable spring 49 being connected between the pin 48 and a lscrew 50 fixed in the proximate side frame 30', quickly to restore the cam to normal positionl after its backward movement, .com-

pelled, as shown in Fig. 9, Aby the`4 gripperopening movement lof the cam-lever 38. 4

' To prevent Ypaper from being carried around by the segment after the paper has been released by the gripper, owing to elec- -triication of the segment surface or other cause, I preferably provide paper-removing means of suitable character,'such as small printing period of oper- :yielding rubber blocks, 51, mounted upon spring lingers 52 curving back under the lfeed table 22. y

' lThe cylinder segment intermittently coacts-owin to its segmental constructionwith a printing -roller 55, axially shorter than the segment opening and yieldingly Supported in a carriage on the frame and bearing a surface coating of gelatinous composition suitable to receive an ink impression and to reproduce the sameupon a paper sheet pressed in contact therewith. The print-ing-roller carriage consists of a pair of 'slidingbars 56, mounted for horizontal rehciprocation 1n channels 57 formed in the upper rails of the opposite side frames 20 and sa1d bars having slots 58 therein for engagement with guiding screws 58 in the channels 57. The u wardly protruding forward ends of the sli e bars 56 carry the4 shaft 59 of the roller construction, and their rear ends are cross connected by a rod 60 and arenormally retracted by a spring 61 which engages an adjusting screisr 62 passing through a clip 63 secured to the cross rods 11 of they frame and carrying beyond an adjusting thumb-nut 64.I T he body or core ofthe printing roller 55 is carrled in rotation by theshaft 59 but is removable therefrom and Arotarily adjustable with respect thereto. To this end, the rollerv core is engaged by apin 60 carried by a plate 61 loose upon the shaft 59 and having a milled edge for enf gagement by a clip 62 secured by a tension screw 63 upon a 4stud 64 which is pinned or otherwise secured to the shaft 59 for rotation therewith. Obviously, when the screw 63 1s tight, the shaft, disk, and roller are all united for lrotation, but by loosening the screw 63 to free the milling of the disk 61 from the clip 62', the disk and roller may be rotatively Iadjusted upon the shaft. The lshaft is normally maintained in a predetermined rotative pcsition, defined by en agement of a notch'in disk 66 on the sha t eX- The disk is held against such stud by a,

spring 70, which, at its lower end, is secured toa bracket 7,1 on the side frame, and at its upper-end carries a link 72 engaging a stud 73 upon said disk 66.v V

It is preferable that `the surface ofthe printing roller be quite elastic and yielding, and vto this end, the body of the roller may be covered with a relatively thick gelatinous fcovering 75, molded thereon and continuous throughout its'entire periphery.. If desired, however, gelatinous fabric may be employed Aas the ink receptive surface, but in such event, it is my preference to employ a relatively thick yielding body between the gelatinous fabric. and-the relatively rigid core W. E. AD. STOKES, JR. L G. W. DAVIS.

AERIAL FOR WIRELESS TELEGRAPHY AND TELEPHONY.

' APPLICATION FILED 0019, 1908.

" Patented Aug..22, 1911.

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