. Appleton's dictionary of machines, mechanics, engine-work, and engineering. 73-? TOOLS. drill-stock, and acting upon it by friction for the more complicated combination of ratchet-wheel, click,anil -pring. Fi<*. 3435 shows an elevation, and Fig. 3436 a section of this improved form of the tool;a U the hallow nut foi adjusting the drill to different lengths, b the screw for feeding the drill, c thehandle of the same form, aad worked in the same manner as that already described, but made with acylindrical socket c, -which embraces the spiral riband k, and of which Fig: 3437 is a detached vi


. Appleton's dictionary of machines, mechanics, engine-work, and engineering. 73-? TOOLS. drill-stock, and acting upon it by friction for the more complicated combination of ratchet-wheel, click,anil -pring. Fi<*. 3435 shows an elevation, and Fig. 3436 a section of this improved form of the tool;a U the hallow nut foi adjusting the drill to different lengths, b the screw for feeding the drill, c thehandle of the same form, aad worked in the same manner as that already described, but made with acylindrical socket c, -which embraces the spiral riband k, and of which Fig: 3437 is a detached spiral riband or clutch iui bored truly cylindrical to fit the drill-stock e, and rests without beingfixed upon a collar at the lower ead cf the stock ; it is fixed to the upper part of the socket c by thescrew /, and the washer m secures all these parts. 3435. 343G. 3437. 3438. 3439. The mode in which the tool works, will be sufficiently obvious from the above description and an ex-amination of the section, Fig. 3436. When the handle c is turned in the direction i


Size: 1618px × 1545px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861