Patent GB-232634-A (GB)
Title: Improved machine for stamping marks on articles
IPC: B44B5/00
Filed: 1925-04-20
Abstract: 232,634. Ott, L. April 19, 1924, [Convention date]. Type-case machines ; machines for embossing metal; driving-mechanism ; type-carriages; hammer-impression arrangements.-In a machine for stamping identification marks consisting of a series of numerals, letters, &c. on articles such as machine parts, types corresponding to the required identification mark are mounted in a carriage associated with automatic spacing- mechanism for presenting the types successively to a hammer. Types 1, Figs. 1 and 2, corresponding to the required identification mark, are mounted in a carriage 2 running on rails 10, the types being free to move vertically and being held in elevated position by means of spring-urged levers 4 engaging grooves in the types. For marking curved articles, types having the grooves in different positions may be employed. The front 6 of the carriage is detachable, to permit insertion of the types. The article A is secured in contact with a distance-piece 16. The carriage is moved step-by-step to the left, by letterspacing mechanism described below, to present fhe types successively to a hammer 72 mounted in a block 71 on a rocking arm 63 which is raised and depressed by a revolving roller 76 and an adjustable spring 65 respectively. The block 71 is provided with a spring plunger 73 which engages one of the levers 4 and presses the type into contact with the article before the hammer strikes the type. The roller 76 moves over a cam 77 on the block 71, and is mounted on arms 75 on a shaft 22 normally clutched by a spring- pressed disc 26 to loose driving-pulley 23. The arm 63 is secured to a member 64 which can rock on a sleeve 62 secured to a spindle 61. The spring 65 is connected at one end to the member 64, and at the other to a lever 68 which can be rocked to adjust the tension of the spring, and is secured by a spring catch 69 engaging a notched plate 70 on the sleeve 62. The member 64 carries a spring plunger 79 for cushioning the blow. Machines for embossing in curved lines.-The above-described machine may be employed for embossing in curved lines on the plane end of a cylindrical article, the article being turned after each impression, and the hammer remaining in the same position. Letter-spacing mechanism; carriage-returning mechanism; carriage-releasing arrangements. - The carriage 2 is moved to the left step-by-step by means of a rocking arm 37 co-operating with inclined teeth on a bar 17 on the carriage. The bar is provided with four sets of teeth of different pitch, and can be turned by a knob 88 to cause any of the sets to co-operate with the arm 37 for the purpose of adjusting the spacing, a spring pin 87 retaining the bar in adjusted position. A number of interchangeable bars having sets of different pitch may be provided. The arm 37 and a detent-arm 38 are connected bv a sleeve 36 to an arm 36 which is rocked by a cam 32 and returned by a spring 39, the cam being provided with a sprocket-wheel 30 connected by a chain 29 to a sprocket-wheel 28 on the shaft 22. The hammer 72 may be moved to the right stepby-step bv means of a segment 83 gearing with a rack 81 on the carriage 2 and connected by a link 86 to the plate 70, the movement being adjusted by placing the link in one or other of a series of holes 85 in the segment, or in different positions in a slot. When all the type have been impressed, a stop 41 on the carriage engages an adjustable stop 42 on a rod 43 connected to a lever 44 which engages a sleeve 47 on the clutch disc 26. The lever 44 is thereby moved slightly to the left and permits a spring-actuated bevelled pin 49 to rise and swing the lever further to the left, the clutch disc 26 being thereby disengaged and the machine arrested. Simultaneously, a lever 52 connected to the pin 49 rocks an eccentaically mounted shaft 40 carrying the sleeva 36. and the arms 37, 38 are withdrawn to release the carriage, which is thereupon returned by a handle 12 or a spring-actuated band 11. The carriage is arrested by engagement of a stop 58 thereon with a stop 57 on the framework 56. The stop 57 can be turned over to permit withdrawal of the carriage from the casing 25 for the purpose of inserting the types. The machine is Started by raising the lever 52. preferably by means of a pedal. The machine may be provided with an operation-counter.