Patent GB-940258-A (GB)
Title: Marking apparatus
IPC: B41F31/06
Filed: 1962-06-25
Abstract: 940,258. Printing apparatus. ADOLPH GOTTSCHO Inc. June 25, 1962 [July 6, 1961], No. 24277/62. Heading B6C. An apparatus for applying inked markings from below on to horizontal surfaces of articles conveyed along a path 18 comprises a support 12 secured at one side of the conveyer and mounting a frame member 30 in the form of a vertically disposed plate which carries a drive shaft 28 and cantilevered axles 132 and 42. The drive shaft, which is driven through a chain and sprocket arrangement 166, 164 from the conveyer drive, mounts, through a grub screw 106, a fountain roller 102 whilst axles 132 and 42 rotatably mount, in a readily releasable manner, a transfer roller 124 and a die wheel 70, respectively. The die wheel carries marking means 96 and by eccentrically mounting the drive shaft 28 and the axle 132 through bushes 22 and 138 in bosses 32 and 140 forming part of the member 30, the contact pressure between the rollers and the wheel may be regulated Such regulation is effected by rotating the bushes 22 and 138 through handles 152 and 158 which are secured to collars 148 and 154 fixed to the bushes by grub screws 150 and 156. Inadvertent turning of these bushes is prevented by set screws 160 and 162. The frame member 30 is pivotally mounted relative to the support 12, the bushing 22 being rotatably mounted in a block 20 fixed to the support. A limited amount of pivotal movement is necessary in order to allow for vertical adjustment of the die wheel 70 relative to the path 18 and such movement is obtained through actuation of knurled nuts 62 and 64 which alters the effective length of a bolt member joining an extension 44 of the axle 42 which mounts the wheel 70 and a leg member 48 bolted to the block 20. The shaft 28 drives the rollers and wheel 102, 124, 70 through a chain and sprocket transmission 168, sprocket wheels 170, 174 and 178 being keyed on the shaft and axles 28, 132, 42 for this purpose. Chain tensioning adjustments are effected through an idler sprocket 182 adjustably mounted on the member 30. The rollers 102, 104 and wheel 70 may be readily removed from their respective shaft and axles through actuation of the grub screw 106 in the case of roller 102 and the removal of a split-ring 146 and a snap-ring 80 in the instance of the roller 124 and the wheel 70. The wheel marking means 96 are carried by a ring 98 and sleeve 82 on the body 72 of the wheel and such means, along with the sleeve, may be readily removed therefrom by release of a ring nut 88. An ink fountain 110 is releasably secured to the frame member 30 through stud and screw members 118 and 122 such fountain having a cover 193 which also extends over the fountain and transfer rollers 102 and 124. Ink is fed to the fountain 110 from a reservoir 204, removably mounted on a depressed portion of the cover 198, through a pipe 208, a ball valve (not shown) being unseated by a pin 210 projecting upwardly from the fountain, such valve automatically closing to prevent leakage through pipe 208 when the reservoir is removed. Excess ink on the fountain roller 102 is returned to the fountain by a scraper 196. Through suitable arrangement of the parts the apparatus may be adapted to print on the tops of articles moving therebeneath. Specification 868,168 is referred to.