专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

DE1205559B 未知
公开(公告)号：DE1205559B
公开(公告)日：1965-11-25
申请号：DED0030613
申请日：1959-05-06
申请人： DITTO INC
发明人： HEDRICK GLEN WILLARD , MAGUIRE RICHARD GREGG
IPC分类号： B41M5/025 , C04B24/18 , C04B28/02 , C09K8/46

2. 发明专利

GB976043A Automatic photoprinting machine 未知
公开(公告)号：GB976043A
公开(公告)日：1964-11-25
申请号：GB117263
申请日：1963-01-10
申请人： DITTO INC
发明人： TAINI JOHN , JOHNSON EDWIN STANLEY
IPC分类号： G03B27/12
摘要： 976,043. Feeding and delivering sheets. DITTO Inc. Jan. 10, 1963, No. 1172/63. Headings B6B and B6H. [Also in Division G2] In a photocopying apparatus wherein a copy sheet and an original sheet are fed from different sources to be superimposed along a path which passes a translucent exposure member, and which includes means for feeding the two sheets along a delivery path towards a delivery point, means is provided for diverting and feeding the original sheet along a transfer path and into the path leading to the exposure member, and to arrive so that it is in registry with another copy sheet. Feeding sheets.-Copy sheets P in a tray 32 are fed by unspecified means 33 between a feed roller 57 and a set of feed belts 22, and original sheets T in a tray 34 are fed by unspecified means 35 between a feed roller 66 and a set of feed belts 27, so both sheets arrive together at a rotatable translucent cylinder 20 containing a light source 21 where exposure takes place as the sheets pass around the cylinder. The belts 22 are perforated and are trained over idler rollers 51, 53, 54, a driven roller 52, and the cylinder 20, and they pass over suction chambers 23 and 24 which retain the sheets on the belts. The belts 27 are trained over idler rollers 58, 59, drive roller 60, and a suction chamber 26. Delivering sheets.-Superimposed copy and original sheets, exposed whilst passing around the cylinder 20, are guided at 25 so that the copy sheet can be gripped to the belts 22 by the suction chamber 24 and delivered to a developing unit 30, and then stacked in a tray 31. The original sheet is gripped by an arcuate suction chamber 28 against feed belts 29, and can either be stripped from these belts by fingers 75 and guided between a feed roller 67 and belts 37 for delivery to a tray 36, or can be delivered around the chamber 28, depending upon the setting of the stripper fingers 75. The belts 37 carry the original sheet to a position where it is taken by the feed belts 27, which feed it to the exposure cylinder 20 where it is superimposed on a copy sheet fed by the belts 22. Depending when the setting of a counter mechanism, the stripper fingers 75 are held in the raised position automatically, and the same original sheet can be used with any desired number of copy sheets. Switches 80, 81 in an automatic electric circuit are operated by the sheets. The counter can be set manually, or it can be controlled by a memory-type device. The belts and rollers are driven from a motor through chains and sprockets.

3. 发明专利

GB814961A Carbon paper coating compositions 未知
公开(公告)号：GB814961A
公开(公告)日：1959-06-17
申请号：GB3073855
申请日：1955-10-27
申请人： DITTO INC
发明人： MAGUIRE RICHARD G , HEDRICK GLEN W
IPC分类号： B41M5/025 , C04B24/18 , C04B28/02 , C09K8/46 , C09K8/487
摘要： 814,961. Ink. DITTO Inc. Oct. 27, 1955, No. 30738/55. Drawings to Specification. Class 146(3) [Also in Group XVI] Carbon paper suitable for use with a copy sheet impregnated with the diamide of thio-oxalic acid (rubeanic acid) as described in Specification 802,170, comprises a base sheet coated with a composition comprising (1) oleaginous material, (2) a heavy metal salt and (3) a hydrotrope in a minor amount of water. There are specified as (1) oleaginous materials-mineral oils, fats, waxes, castor oil, lanolin, (2) organic sulphonates or sulphates, e.g. nickel benzene disulphonate, of Ni, Cu, Fe, Va or Co, (3) hydrotropes are defined as compounds which are soluble in both water and hydrocarbons and which when present in a minor amount of water allow large amounts of hydrocarbon to be dissolved therein e.g. sodium cymene-, potassium xylene-, alkali metal tetrahydronaphthalene- and butyl naphthalene-sulphonates. Surface active agents e.g. fatty alcohol sulphates, ethylene oxide condensates with alkylated phenols may be added. A suitable composition consists of 55.08 parts nickel sulphate hexahydrate, 0.92 parts oxazolines, 18 parts mineral oil, 2.76 parts lanolin, 0.92 parts gum arabic, 1.83 parts bees wax, 10.09 parts carnauba wax, 3.49 parts castor oil, 2.32 parts ethylene oxide-alkylated phenol condensate, 4.36 parts sodium p-cymene sulphonate and 2.16 parts sodium lauryl sulphate.

4. 发明专利

GB710871A Improvements in offset rotary lithographic printing machines 未知
公开(公告)号：GB710871A
公开(公告)日：1954-06-23
申请号：GB965351
申请日：1951-04-25
申请人： DITTO INC
发明人： GULLIXSON HAROLD RANDOLPH , BRUNS HERBERT FREDERICK
IPC分类号： B41L19/00
摘要： 710,871. Lithographic printing-machines. DITTO, Inc. April 25, 1951, No. 9653/51. Classes 100 (1) and 100 (2) An offset lithographic machine having a cylinder 14, Fig. 2, provided with plate and impression surfaces 15, 16 and rotatably mounted on a frame, a table 7 for sheets to be fed to the cylinder, a blanket roll 18 in operative association with the plate and impression surfaces 15, 16 and a tray 26 for receiving printed sheets from the cylinder, is characterized in that the feed table 7 and receiving tray 26 are both located in front of the cylinder 14 adjacent the bottom and top thereof respectively while the blanket roll 18 is to the rear of the cylinder 14, which latter is rotated in a direction to move a sheet fed to the bottom of the cylinder upwardly between the blanket roll and the cylinder and to deliver it to the receiving tray with its surfaces reversed in relation to its position on the feed table, the printed surface of the sheet being uppermost in the receiving tray. Rotary machines (Fig. 2).-Sheets are fed from the table 7 via an air separator by means of a sheet feeding device 9 both as described in Specification 699,704. The sheet is positioned against stop fingers 12 mounted on a camoperated shaft which when the sheet is to be fed forward operates to lower the fingers in recesses between constantly driven rollers 11. In timed relation with the operation of the stop fingers, idler rollers 10 are lowered by cam mechanism to co-operate with the driven rollers 11 and feed the sheet forward to the cylinder 14. A sheet detector 13 is also cam operated in timed relationship with the stop fingers and rollers 10. (Figs. 8 to 15 not shown). The sheet is then taken by grippers on the impression surface 16 of the cylinder and carried past the blanket roll 18 as described in Specification 710,873 where it is printed upon. After passing a series of hold-down rollers 22 the sheet is taken by a stripper 23 and fed into the receiving table 26. During the printing of the sheet on the impression surface 16 of the cylinder the printing surface 15 of the cylinder co-operates with a damping apparatus 28 as described in Specification 710,875, and inking apparatus 29 as described in Specification 710,874. The cylinders are driven by an electric motor which also drives a vacuum and compression pump 34 which supplies air for operating the table 7 by bellows 305, the air separator 8, the sheet feeder 9, and the damping apparatus 28, as described in the above Specifications. The surfaces 15, 16 may be circumferentially adjusted as described in Specification 710,872. Gripper mechanism (Figs. 30, 37).-The grippers 17 for taking the sheet from the feeding mechanism comprise a plurality of tabs 200 secured around a shaft 192 rotatably mounted in bearing blocks 191 secured to the leading end face of the impression segment of the cylinder 14. Secured to the tab 200 are a set of wide and short gripper fingers 201 and a set of longer and narrower ejector fingers 202. The ejector fingers 202 are of a width such that they may pass into recesses 203 in the cylinder 14 on rotation of the shaft 192 whereas the gripper fingers rest on the surfaces 204 their width being too great to allow passage into the recesses 203. Rotation of the shaft 192 is effected by a cam follower 194 which runs on cam surfaces 206, 207, 209 to rotate the shaft 192 anti-clockwise against the action of a spring 198. Printing surfaces (Figs. 16, 17, 27).-The plate clamp for the leading edge of the plate comprises a jaw member 12'6 secured by bolts 122 which pass through a spacer block 129 to the printing surface 15 of the cylinder 14. The bolts 122, however, pass through slots in the jaw member 126 so as to allow vertical movement of the jaw 126 against the action of a spring 136. Vertical movement of the jaw member 126 allows the plate to be positioned between the jaws and leaves 133 of a hinge 131 the other leaf 130 of which is secured by the bolts 122 to the surface 15. Release of the jaw member clamps the plate in position. The trailing edge clamp is of similar construction but two sets of bolts 140, 144 are provided together with a second hinge 138 so that the spring 136a causes the jaw member to swing outwardly, thereby straining the plate. In a modification, Figs. 24 to 26 (not shown), the leaves 133 are provided with protuberances to assist in gripping the plate. In a further modification (Fig. 27) a hinge 176 is movable with the jaw member 175, a spring 180 holding the leaves 177 of the hinge on the distance piece 166 when the jaw member is lifted for insertion of the plate. Delivery apparatus (Figs. 33, 34, 35, 42, 43).- The stripper 23 comprises an arcuate plate 210 having upwardly extruding hangers 211 at opposite ends pivoted on stubs 212 and stub shaft 213. One of the stub shafts extends through the machine frame and is connected by linkage 214, 215 ... 220, to a piston 221 of a cylinder 223. Also operatively connected to the piston 221 is a bracket 229 carrying the hold down roller 22. During operation of the machine the parts are in the position shown in full lines in Fig. 33, air being supplied from the pump 34 to the cylinder 223, but when the machine is not working and no air is supplied to the cylinder the parts assume the position shown in broken lines to allow access to the cylinder 14. The plate 210 is provided with stripper fingers 238 which enter the spaces between the gripper fingers 201 and assist the ejector fingers 202 in stripping the sheet from the cylinder 14. The sheets then pass into the receiving tray 26 which comprises a plate 245 having an upwardly inclined wall 247 riveted to a pair of supporting arms 250. The arms 250 are secured to a shaft 253 having flattened ends 254 disposed in recesses in plates 255, secured to the inner faces of the machine side frame so that the table 26 may be removed by upward lifting. The front end of the tray rests upon supporting posts 276. The table is provided with movable side guides 260 and a forward stop 270 formed of a resilient strip of metal 271, which by means of rivet 274 and slot 272 and rivet 275 and hole 273 may be placed in two positions, the rivet 275 taking the position of rivet 274 in the other position to that shown. Driving arrangements; faulty. feed control devices (Fig. 45).-Closure of motor control switch M energizes the motor 33 which drives the pump for supplying air to the various air operated mechanisms and also serves to make power available via a rectifier R for the electric control circuits. Electromagnetic coils 309', 315, 316 ... 320 respectively control when energized an air valve 309 leading to the damper mechanism, the inking mechanism 29 by placing a ductor roll into contact with the ink fountain roll, the moisture forme roll by placing it in contact with the cylinder 14, and the coils 318, 319, 320 when energized cause operative association of the blanket roll with the cylinder 14. Initially a mercury switch 323 is open, the switch being also operatively associated with a valve controlling the sheet feeder 9 so that until the switch is closed no sheets are fed to the machine and the detector finger 110 makes contact with plate 41 thereby energizing a relay 321 which on closing its contacts 332, 353 energizes a relay 322. Relay 322 completes a holding circuit for itself over contact 336 and relay 321 is maintained energized over contacts 115 even after the detector finger 110 breaks contact with the plate 41. Each of the control coils may now be energized by manually depressing their associated control buttons M.F., I.F., M.C., I.C., B.C. the return circuits being completed over their lower contacts, lines 343, 344, 399, contact 338, and lines 331, 327 When it is desired to start printing the switch 323 is closed, a sheet is fed, relay 321 is de-energized and all the coils are thereupon energized, return circuits being provided over their upper fixed contacts, line 367, directly in the case of buttons I.F. and B.C., and via switch 323 in the case of buttons M.F., M.C., I.C., then from lines 367 to lines 351', 352, relay contact 353, lines 333, 337, relay contact 336, and lines 335, 327. During the normal running of the machine, any one of the coils may be deenergized by depressing its associated control button, there being no return circuit over the lower fixed contacts after the relay 321 is deenergized. Prior to stopping the machine by opening the switch M, the mercury switch 323 may be operated an extent sufficient to break electrical contact but maintain the air supply to the sheet feeder, thus rendering the moisture feed inoperative, and removing the moisture and ink forme rollers from operative association with the cylinder 14, but leaving the blanket roll in operative position until opening of the main switch M.

5. 发明专利

CH196676A Machine à reproduire. 未知
公开(公告)号：CH196676A
公开(公告)日：1938-03-31
申请号：CH196676D
申请日：1937-05-28
申请人： DITTO INC
发明人： DITTO INCORPORATED

6. 发明专利

GB480402A Improvements in duplicating machines 未知
公开(公告)号：GB480402A
公开(公告)日：1938-02-22
申请号：GB277537
申请日：1937-01-30
申请人： DITTO INC
IPC分类号： B41L11/00
摘要： 480,402. Copying documents; feeding sheets ; gripper mechanism. DITTO, Inc. Jan. 30, 1937, No. 2775. Convention date, April 27, 1936. [Classes 100 (i) and 100 (ii)] In a rotary duplicating-machine of the type comprising a printing-drum 8 carrying grippers 20 to which a mirror-script original 22 is fed from a tray 42, a device for opening the grippers controls a stop 66 so as to allow the original to be fed when the grippers are open and are aligned with the tray. The grippers are fixed to a shaft 24 carrying a roller-arm 25 adapted to be rocked outwardly to open the grippers by cams 32, 33 which are moved into operative positions by swinging a lever 38 into the position shown. The tray 42 is pivoted at 43 and is spring-pressed towards the drum but is normally held back by a pin 51 on a plate 52. Movement of the lever 38 rocks the plate 52 about a pivot 53 through the intermediary of a rod 62 to allow the tray to approach the drum. A finger 65 then rests on the drum and drops into a recess therein when the grippers 20 are aligned with the tray, and a cam-surface 30 on the arm 25 engages a roller 69 on an arm 68 rigid with the stop 66 to lower the stop and allow the original to drop into the grippers. Specification 374,665 is referred to.

7. 发明专利

GB471148A Improvements in copying pads 未知
公开(公告)号：GB471148A
公开(公告)日：1937-08-30
申请号：GB865937
申请日：1937-03-24
申请人： DITTO INC
IPC分类号： B41L9/04 , B41M5/06
摘要： A composition for hectograph and like copying pads comprises 1 part of glue or gelatin, 0,1 to 1,5 parts of starch as glyceride of starch, 8 to 16 parts of glycerin and 1 to 3 parts of water. The starch is preferably a soluble starch such as chlorinated starch, and the glyceride may be formed by heating chlorinated starch with glycerin, preferably in the presence of water, until a translucent mass is obtained. Tanning agents, e.g. formaldehyde, alums, potassium or ammonium dichromate, may be incorporated in the mass.

8. 发明专利

FR813670A 未知
公开(公告)号：FR813670A
公开(公告)日：1937-06-07
申请号：FR813670D
申请日：1936-10-23
申请人： DITTO INC
IPC分类号： B41L9/08

9. 发明专利

CH190173A Machine à reproduire rotative. 未知
公开(公告)号：CH190173A
公开(公告)日：1937-04-15
申请号：CH190173D
申请日：1936-04-30
申请人： DITTO INC
发明人： DITTO INCORPORATED
IPC分类号： B41L29/16

10. 发明专利

GB464207A Improvements in spindle mountings adapted particularly to duplicating machines 未知
公开(公告)号：GB464207A
公开(公告)日：1937-04-08
申请号：GB2777135
申请日：1935-10-08
申请人： DITTO INC
IPC分类号： B41L9/08
摘要： 464,207. Hectograph-copying apparatus. DITTO, Inc. Oct. 8, 1935, No. 27771. Convention date, July 26, 1935. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 14, 1936.] [Class 100 (ii)] A spindle - mounting, particularly for hectograph. copying machines of the type comprising a gelatine band passing over the surface of an arcuate drum A from one spindle 2C inside the drum to another, comprises a framework in. cluding opposed end walls 112, 113 having oppositely-mounted spindle carriers 133, 134, the former being urged by a spring 155 towards the latter which is adapted to drive the spindle, and a cam-surface 185 being provided on the framework whereby, when the spindle is moved laterally with its axis parallel to the axis of the carriers, the cam 185 moves the spindle longitudinally so that the carrier 133 is moved outwardly, further lateral movement of the spindle permitting the carrier 133 to urge the spindle into driving engagement with the carrier 134. Each spindle is in the form of a tube having at its ends caps 50, 50a, each cap having a concave recess 51 provided with a diametrical slot 52a. The carrier 133 consists of a pin having a conical head 150 with a rounded point, and the carrier 134 comprises arotatable pin with a tongue 160 for engaging the slot 52a. Flanges projecting inwardly from the wall 113 form guides for the cap 50a of the spindle. The wall 112 has similar flanges 170, 171 and has also a single inclined surface 181 serving as a guide for both spindles and has also a central guide-lug 179. The Specification as open to inspection under Sect. 91 comprises also the following spindle-mounting : At one end of the spindle, the recess 51 engages a spring-pressed pin 54, Fig. 1 (Cancelled), having a convex end 54e, and the recess at the other end engages a driving- pin 55a, the spindle being slightly shorter than the distance between the end walls of the framework so that on moving the spindle towards the pin 54 after engaging one end with the pin 55a, the other end strikes against the surface of a plate fixed to the framework, causing the spindle to move to the left, and, on continued movement of the spindle, a rounded edge on the end of the spindle engages the surface 54e moving the pin 54 outwardly and entering the spindle between the two pins. This subject-matter does not appear in the Specification as accepted.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式