GB277947A - Improvements in or relating to braiding machines - Google Patents

Abstract

277,947. Industries of America, Inc., (Assignees of Robinson, H. G.). Sept. 24, 1926, [Convention date]. Braiding-machines, - In a braiding-machine having rotatable discs 21 - - 28 for moving the bobbin carriers b<1> through a sinuous path and means rotatable with the driving discs 21 - - 28 to secure the carriers successively to the discs the holding means comprises dogs 35, 36 biased from holding position by centrifugal action and moved positively into holding position at the transfer position by fixed cams 53, 55. The driving discs 21 - - 28 are driven by gearing 16, 18 from the main shaft of the machine and have near their upper edge recesses 32 in which are adapted to engage terminal flanges 33 of the bobbin carriers b'; the discs are also provided with vertical slots in which are pivoted the dogs 35, 36 which in the holding position engage angular slots in the under face of each of the flanges 33 and hold the flange against the inner face of one of the recesses 32. To allow the carriers to return upon their courses for making a flat braid the end discs 21, 28 are provided with one or more additional dogs 35, 36, and a cam 51 having a portion adapted to be reciprocated by gearing 61, 62 and crank pin 63 is provided for engagement with the dogs of these discs, the arrangement being such that only at alternate revolutions of the discs is each dog raised to engage the flange 32 of the carrier. Stop mechanism for stopping the machine upon failure of the supply, &c. is provided for each bobbin carrier, comprising a wire 80 having an eye 81 through which the thread is led and an arm 86 extending inwards to a plunger 87. Upon breakage &c. of the thread the wire 80 with plunger 87 is depressed, the plunger engaging one of a series of levers 89 which operates by means of levers 91, 92 the main clutch of the machine. The levers 89 - - 92 may be replaced by an electric circuit which is broken when the plunger 87 falls. The casing 1 enclosing the gearing 16, 18 and driving discs serves as a reservoir for lubricant, the wheels 16, 18 being provided with channels 71, 72 leading to spiral grooves 74 in the spindles 17, the lubricant being fed to the recesses 32 by centrifugal action from the grooves 74 through passage 76 and falling by gravity on to the cam surfaces 51, 53, 55. Fibre, &c. entering the casing 1 is retained between the flanges of a fixed plate 112, upon which the cams are mounted, and the side walls of the casing and tends to act as a filter for the lubricant. Specification 294,669 is referred to.