321,556. Schatz, D. Nov. 10, 1928. Counters actuated by revolving mechanism; counters with recording-apparatus.- A device for mechanically determining the working efficiency of workshop machines comprises an indicating or registering mechanism actuated by the machine through the intermediary of a transmission gear with a laterally displaceable member adjustable for different theoretical degrees of maximum efficiency. The device may be combined with means for ascertaining the wages due at any time and for totalling the wages due for a definite period. In one form as shown in Figs. 1, 2, and 4 as applied to a weaving loom for determining the number of wefts thrown a shaft 3 driven from one of the loom shafts actuates a shaft 2 carrying a counting-mechanism f with type wheels and drives a toothed wheel 4. A record may be taken from the type wheels on a card or record-strip by means of an impression mechanism a, b and inkribbon d. The wheel 4 gears with a wheel 6 loose on a shaft 5 but connected thereto by means of a friction disc 12 and plate spring 11. On the shaft 5 is mounted for longitudinal movement on a key way 13 a cam disc 14 with which cooperates an arm 16 on a shaft 15 carrying a segment 17 gearing with a pinion 19 on the spindle of an indicating pointer 20. A nut 25 on a screwed spindle 23 has a projection 26 engaging the cam disc 14 so that by manual rotation of the spindle 23 the cam disc is adjusted on its shaft 5 to vary the transmission ratio, its position thereon being indicated by a pointer 27 co-operating with a graduated scale on the casing 1. In adjusting the cam disc the arm 16 is rocked so that the spindle 5, by means of a key on the projecting end 9, is rotated to bring the pointer 20 back to the zero position. The pointer 20 co-operates with a scale graduated in terms of percentage whereby the efficiency is directly determined. In another form shown in Figs. 6, 7, and 8 the shaft 30 operated by the loom is geared to a wheel 34 through a reversing mechanism 32, 33, 36 so that the wheel 34 is always rotated in the same direction. The wheel 34 carries a one-way driving tooth 39 adapted to actuate the star wheel 41 of the printing counter, the movement of the star wheel being justified by means of a detent pawl 43. On the shaft 2 of the star wheel is secured a worm 47 engaging a worm wheel 49 which, through a pinion 50, drives a wheel 51 in frictional engagement with a disc 52 secured to a shaft 53 having a projecting portion serving to effect its adjustment. A friction wheel 57 is slidably mounted on the shaft 53 and co-operates with friction disc 59 on the spindle of which is mounted an indicating pointer 60. The wheel 57 is adjusted by means of an arm 62 having a forked end enga.ging a nut on a screwed spindle 66 adapted to be rotated from the extending end portion 67. The spindle of the arm 62 carries a segment 68 geared to a sleeve carrying a pointer 71 coaxial with the pointer 60 to indicate the position of the friction wheel. In another modification incorporating means for calculating the wages shown in Figs. 11, 12. 15, 17, and 18 a shaft 103 driven from the loom transmits movement through worm gearing 104, 105 to a counting mechanism g registering the number of wefts, and to a spindle 108 which carries a friction wheel 109 co-operating with a friction disc and adjustable thereon in a manner similar to that described above. The friction disc actuates a pointer 114 and a coaxial pointer 121 is provided to indicate the setting of the friction wheel 109. The shaft 103 is connected by worm gearing 125 to the shaft 126 of the wages calculator h. This mechanism comprises a set of single toothed driving wheels 145, 151, 153 cooperating with each other through Geneva-type transfer pinions 147. On each driving wheel is mounted a pinion 155 with alternate long and short teeth and in engagement with a corresponding toothed wheel 156, the wheels 156 being keyed to a hollow shaft 157 on which is mounted a pinion 159 gearing with a toothed wheel 162 driving the wages counting mechanism i. Associated with each driving wheel is a member 164 connected by bolts to the casing and provided with nine radial slots 167 in which are guided spoke teeth 168, the said teeth having projections engaging cam grooves 170 formed in an annular body 172 rotatably mounted in a flange on the member 164. The body 172 has an annular flange 173 with notches 174 corresponding to the radial slots 167. The wages rate is set by rotation of the bodies 172 so as to displace the appropriate number of spoke teeth into the path of movement of the pinions 155. The calculating mechanism also drives a wheel 127, Fig. 11, gearing with a wheel 129 secured to a shaft 128 and through gearing 131, 136, 137, 138, drives a shaft 102 and a set of ratchet wheels 139<a> - - c to actuate a total wages counter k. The printing wheels f are set by pinions 134 loose on the shaft 135 gearing with pinions 130 loose on the. shaft 128 and engaging the pinions of the wages counter i. The shaft 135 is arranged to be axially displaced and then rotated to effect the zeroizing of the printing device and wages counter.