Tappet and dobby looms : their mechanism and management (1912)
Roberts, Thomas · Manchester [Greater Manchester] : Emmott & Co., Ltd. · leaf 82
OXS UNDER-MOTION 71 is not applied directly to the heald shaft, but is used incombination with the specially constructed tumblersB. These tumblers are fulcrumed on the stud C, thestud D serving as a check pin to the tumbler when thelatter is drawn back. The studs are suitably carried inthe chairs… … Fig. 22. provided with two hooks G and H, on to either of whichthe spring may be attached, or, as is occasionally re-quired for heavy goods, two springs may be attached tothe same tumbler. This type of motion when applied totappet looms is constructed with one layer of springs towork up to ten…
Looms
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