GB168117A - Improvements in apparatus for lifting, lowering and hauling - Google Patents

Abstract

168,117. Quittenton, C. H. May 15. 1920. Drum or barrel winding-machines; apparatus with jointly-controlled drums; pulley-blocks. - A winch for use in connection with an aerial ropeway comprises a main drum f, a working drum d, and a stop drum e, the drum e being arranged either to be rotated in the opposite direction to the drum d or to be locked, the drum f being operated independently. As shown the working drum on the drum shaft c may be rotated quickly by a large wheel h<2> operated by a handle h and in gear with a small wheel c<1> on the shaft c, or it may be turned slowly by sliding a small wheel h<3> on the countershaft h into gear with a large wheel c<2> on the shaft c. A clutch k on a shaft b, may, in one position, engage the spindle j' cf one of the wheels of a differential gear, driven by the shaft c thereby causing the stop-drum d to rotate in the opposite direction to the working-drum d, or, in another position, the clutch may lock the stop-drum by means of a lug k<1> and free the spindle f<1>. The drum f is driven by a handle placed on a shaft l carrying wheels l<1> in mesh with toothed flanges f<3> on the drum. The suspending cable, with a travelling pulley frame n suspended thereon by a pulley n<3> is first payed out attached to a fixed support and pulled taut by the drum f which is then held by pawls m, the load-cable is then passed round a pulley at the distant end of the suspending-cable and 'brought back over a pulley n<4> in the travelling pulley frame and the traversing cable is attached direct to a staple n<6> cn the travelling pulley frame. The drums e, d are then turned in opposite directions until the travelling pulley frame is at the desired position, the drum e is then locked and the load raised or lowered by operating the drum d alone.