GB219582A - Power transmitter - Google Patents

Abstract

219,582. Fairweather, W., (Singer Manufacturing Co.), Dec. 27, 1923. Gearing for stopping and starting machinery. -A power transmitter specially adapted for driving sewing- machines comprises a driven clutch element 15 arranged between a driving clutch 5 and a fixed brake pad 24. The element 15 and a transmitting pulley 38 are both secured to a shaft 16, which is supported in a non-rotary sleeve 12, which slides and carries the shaft with it to drive and brake the driven group of elements. The sleeve 12 is in turn supported in a frame member 10 so that the shaft 16 is in line with a power shaft 2. The sleeve 12 is opened out to form a cup 13 for a thrust bearing 14 against the clutch member 15. The sleeve 12 is kept from rotating and moved longitudinally by means of a pin 20, Fig. 3, which makes connection with the upper arm 19 of a spring-pulled lever 18 controlled by the operator through a rod 32. The bearing 14 is lubricated through the pin 20 by a grease-cup 22. To prevent oil being thrown upon garments being sewn, an oil chamber 45 is provided in the thickness of the fixed support 10. A cord of wick 49 extends from the chamber 45 to both ends of an open groove 48 in the wall of the bearing sleeve 12, as shown in Fig. 3. An annular groove 41, Fig.. 1, and duct 51 return surplus oil to the chamber 45.