Section 2.—ADJUSTING DEVICES.

(See also [p. 10].)

[1939]. Ratchet rod for adjusting and locking a lever in any required position.

[1940]. Micrometer screw adjustment for a lever or crank arm, which may be locked to its shaft by the clip boss and screw, or released at will.

[1941]. Spring pawl adjustment; has sufficient grip to hold against a moderate pressure, but may be moved by increased pressure.

[1942]. Micrometer adjustment for a cam lever grip.

[1943]. Micrometer screw, with swivel motion.

[1944]. Wedge and pinion adjustment, used for applying pressure to type in printers’ formes.

[1945]. Adjustable rack for any fixing, secured by a staple bolt.

[1946]. Adjustment for a spiral torsion spring to regulate its tension.

[1947]. Callipers with fine adjustment by a taper screw, tapped into a hole in the split leg, so that the taper screw springs open the slit and thus extends the opening of the calliper legs.

[1948]. Adjusting pawl and head for adjusting the tension or compression of a torsion spring, which is fixed to the spindle.

[1949]. Screw adjustment for rollers to maintain parallelism.

[Larger plate.]

[1950]. Adjustment for expanding a split borer, reamer or rose bit, with micrometer graduation.

[1951]. Screw adjustment for a lever.

[1952]. Adjustable centre pin, traversed by a screw, and fixed after adjustment by a nut and washer.

[1953]. Fine screw adjustment for any movable part.

[1954]. Fine screw adjustment for a radial arm.

[1955]. Division plate, with differential dividing on its opposite faces.

Belts, bands, &c., are adjusted by corresponding series of holes and laces, screws or rivets to fit them.