Patent GB-210196-A (GB)
Title: Improvements in or relating to embroidering machines
IPC: D05C3/04
Filed: 1922-11-08
Abstract: 210,196. White, A. E., (Elesco Lace & Embroidery Co., Inc.). Nov. 8, 1922. Embroidery machines. - In an embroidery machine for attaching cord, braid &c. to fabric the attached cords &c. axe led to the point of attachment by guides which are moved synchronously with the strokes of the, needles alternately to the opposite sides of the line of the pattern, the line of reciprocation being variable in such a way that it lies in all its parts ahead of the needle along the line, of the pattern. Material to be embroidered is stretched on a frame 1 controlled by pantograph or other known mechanism and cords &c. 58 are stitched thereto by needles 8 carried by a bar 7 operated in known manner. The cords 58 pass from drums 50 over a tension roller 53 and a guide bar 54, carried by brackets 55 on the needle bar, to guides 13 carried by a bar 14 which may be selectively oscillater either up or down or from side to side by means connected with shafts 17, 16 respectively. A frame 20 is supported on the shafts 16, 17 and a shaft 19 and carries slidablv on rods 22 a secondary frame 23, lugs on which support rods 27 carrying blocks 28 which support the guidecarrying bar 14. The frame 23 is reciprocated vertically by a strap 30 and eccentric 32 splined on the shaft 17 and the block 28 is reciprocated horizontally by a lever 38 engaging at one end a cam slot in a. cam 42 splined on the shaft 16 and at the other a vertical slot in the block 28. The frame, 20 may be moved laterally by hand actuation of a lever 46 on the shaft 19 a threaded sleeve 44 on which engages the lower part 43 of the frame. The shafts 16, 17 are driven from the main shaft 10 through gearing comprising a belt 66, gear 67 and loose gears 68, 69, with which the shafts 16, 17 may be selectively engaged by clutch sleeves 72, 76 splined to the shafts and operated by a hand lever 78. The clutch 72 has on one face notches 72<1> for engaging opposite lugs 73 on the gear 68 and on the opposite face a single notch 74 for engaging a single lug 75 on the frame. The clutch 76 has on one face two opposite notches engaging lugs on the gear 69 and on the other face two opposite notches 84 engaging two lugs 85 on the frame. The two fixed positions of the shaft 17 provided by the two lugs 85 engaging the co-operating notches correspond with the points I and II, Fig. 6, below and above the needle A respectively, and when this shaft is locked the guides can be reciprocated along the line I, IV or the line II, III, but when the shaft 16, is locked, as only one locking position therefor is provided, the guides can then be reciprocated vertically only, along the line I, II. To obtain vertical reciprocation along a line on the other side of the needle the frame 20 is displaced bodily by the lever 46 the reciprocation then taking place between points V and VI. The tension roller 53 for the attached cord is freely mounted on a shaft 53<1> and provided with a spring tension spider 57. To adjust the variations in tension produced when the guides reciprocate between the points I and II or V and VI, a ratchet wheel 60<1> on the shaft is adapted to be engaged by a double pawl 61 mounted on an arm 60 pivoted on the shaft 53 and actuated by a link 62 connected to an eccentric 63 mounted on a shaft 18 geared to the shaft 17. The operation of the levers 78 and 46 to regulate the line of reciprocation of the guides is in accordance with the direction of the line of the pattern as determined by the movement of the work frame 1.