Patent GB-106101-A (GB)
Title: Improvements in Lace Machine Carriage Threading Mechanism.
Inventor: SCOTT WALTER RAMSDEN
IPC: D04C5/00
Filed: 1917-05-04
Abstract: 106,101. Scott, W. R. May 4, 1916, [Convention date]. Bobbins, removing from and inserting into carriages.-Relates to machines for removing empty bobbins from the carriages, inserting filled bobbins, and threading the carriages. A rotary carrier 76, Fig. 4. mounted above a fixed table 78, conveys the carriages from stacks supported between guide-pins 85 beneath devices for removing the empty bobbins, then beneath devices which transfer filled bobbins from stacks supported between guide-pins 136, insert the bobbins into the carriages and thread the carriages, and finally over discharge apertures 81. The discharging &c. devices are duplicated. The filled carriages and the empty bobbins pass through shoots into holders 35, 36 on a lower carrier 31, which is moved only after every fifty movements of the carrier 78. The discharging-devices comprise arms 117, extending from a vertically-reciprocating sleeve 101, carrying spring pins 119, Fig. 11, adapted to engage holes 99, Fig. 12, in the carriages 82, and also carrying discharging-fingers 122 mounted upon levers 121 operated through links 124, which fingers engage with the holes 100 in the bobbins 89 and force them out of the carriages into shoots 134, the carriage springs 95 being deflected by wedges 123. Arms 170, Fig. 9, also extending from the sleeve 101, carry levers 177 operable through telescopic spring links 181, 182, and furnished with fingers 179 which force the filled bobbins into the carriages, spring plates 173 serving to guide the bobbins. The bobbins are fed into position to be engaged by the fingers 179 by slides 169 reciprocated by cranks 155 mounted upon cross-shafts 157. Rotary combs 14U engage the free ends of the bobbin threads which are drawn through the thread eyes 97, Fig. 12, by hooks 208, Figs. 9 and 10, reciprocated by levers 216 operated by cams on the shafts 157, each thread being brought into engagement with its respective hock 208 by a hook 197 mounted upon a link 198 reciprocated within a slot 196 by a lever 200 operated by a cam 203, Fig. 4, on the corresponding shaft 157. Levers 186, Fig. 10, deflected by bars 193 extending from the slides 169 engaging arms 194, return under the action of springs and deflect the carriage springs 95 so that they snap into the bobbin flanges. A main shaft 5, Fig. 4, drives, through gearing 18, a crank-shaft which drives the shafts 157 through chain-gearing 165, 100, and operates the sleeve 101 through a cam 114, rod 109, and lever 106. The crank-shaft oscillates a lever 23, Fig. 5, connected to a rack 40 meshing with a gear 46 which, in turn, meshes with teeth 47 on an arm 53 adapted to engage with a spring-pin 54 on an arm 51 carrying a spring pawl 50 adapted to engage ratchet-teeth 39 on the carrier 31. A lever 58 normally withdraws the pin 54 out of range of the arm 53, but is deflected against the action of a spring 61, when the carrier 31 is to be operated, by a cam 69 on a ratchet 65 which is driven by a pawl 62 on the rack 40. Motion is imparted tc the carrier 76, Fig. 4, by the engagement with teeth 75 of spring pawls 73 carried by a yoke 72 connected to the gear 46. The links 124, 181 are operated by levers 125 actuated by cams on the yoke 72.