Patent GB-244179-A (GB)
Title: Improvements in gauging and assorting machines
IPC: B07C5/08
Filed: 1924-09-12
Abstract: 244,179. Groves, W. W., (Timken Roller Bearing Co.). Sept. 12, 1924. Sorting-gauges.-Comprise a machine for gaug- and sorting conical articles, such as rollers for use in roller bearings, according to their taper, rollers of correct taper within tolerance limits being separated, from those of incorrect taper. Mechanism for indicating the degree of each roller is provided. The feeding, gauging and separating are effected automatically, and the machine may be adjusted. to take different sized rollers, and to work within different tolerance limits. A power shaft 6 having a belt-pulley 7, a clutch 8, and a hand-wheel 10 is arranged to drive a transverse cam-shaft 13 upon which are mounted a cam 16 for operating a feed lever 29, a cam 15 for reciprocating a feeding pin 51, a cam 17 for bringing the gauging mechanism into operation, and a cam 18 for positioning a shoot 75 for receiving rejected articles. The rollers 26 to be sorted are delivered to the machine by a shoot 25 and pass one at a time, into a trough 36 on the end of the feed lever 29 by which they are moved transversely into line with a trough 37 in the gauge member 38. The reciprocating pin 51 then pushes the roller into the trough 37, the roller previously gauged being pushed out at the same time. The lower gauge member 38 is mounted on a plunger 39, Fig. 10, so that when the roller 26 has been fed forward, it may be raised into gauging position by a lever 41 pivoted at 43 and actuated by the cam 17. Excess movement of the lever 41 after the roller engages an upper stop is taken up by a spring 50. The upper gauging member comprises two studs 89, 93, Fig. 11, which are set initially to a standard cone. The stud 89 is fixed in its adjusted position and acts as a stop for the roller 26 when the latter is raised, a steadying spring 98 also being provided. The stud 93 acts as a feeler and is adjustably mounted on one end of a lever 92 which is pivoted at a point 91 and bears at its other end on a lug on a lever 100 pivoted at 99. The movement of the feeling stud 93 is transmitted by the lever 100 and double sector-and-pinion gearing 102, 106 to a spindle 107 upon which are mounted a balanced indicating pointer 108, and a pair of adjustable trip levers 113 whose function is to position the shoot 75 to receive articles the taper of which is not within predetermined limits. The shoot 75 is mounted on a lever 77 pivoted at 80 and normally locked by a latch 85 so that the shoot is out of alignment with the gauging block 38. In this position rollers of correct taper are discharged into a shoot 73. When a roller of incorrect taper is gauged, the latch 85 is rocked by an electromagnet 87 and the released lever 77 is pulled over by a spring 82 and positions the shoot 75 so as to divert the roller into a shoot 74. The means for energizing the electromagnet 87 are controlled by the trip levers 113, and comprise a pair of pivoted levers 116 and a pivoted platform 115 fitted with contacts 127, 128 which are normally closed. The parts 115, 116 are lifted periodically by a projection on the cam 18 through a lever 123 and a rod 119, and if one of the trip levers 113 has been set in the path of the end of a lever 116 by the gauging mechanism, the corresponding contact 127, 128 is broken. This causes a second electromagnet to be de-energized, and a lever is then actuated to close the circuit of the electromagnet 87. The shoot 75 is reset in its inoperative position by a projection on the cam 18.