Section 2.—ADJUSTING DEVICES.

For adjustment by Screws, see [Section 78], and by Wedges, see [Section 36], These are the commonest appliances employed. For Cams also, see [Section 9]. For adjusting Pedestal Brasses, see [Section 46].

For adjustments by keys, cotters, &c., see [Section 37]. See also [Nos. 251], [269], and [297].

[9]. Split cone sleeves and set screw adjustment for a revolving standard, or similar detail, where there is much wear or great accuracy is required in the revolving bearing.

[10]. Centre-line adjustment for lathe headstocks, &c.

[11]. Variable curve adjustment; used in compass planes, instruments for drawing arcs of circles, &c.

[12]. Vertical shaft footstep adjustment; employed on millstones, horizontal grinding mills, &c., to regulate the space between the grinding surfaces. See [No. 261].

[Larger plate.]

[13]. Side screw adjustment for injectors, jet pumps, &c.

[14]. Levelling adjustment; can be used with either 3 or 4 screws: for telescope and level stands, theodolites, &c.

[15]. Horizontal central adjustment for footsteps, &c.

[16]. Slotted link and lock nut for adjusting angle of a lever.

[17]. Disc and ring with partial angular adjustment by a screw and nut; used for screwing dies, self-centering chucks, &c. The nut and bearing of the screw have allowance for swivelling.

[18]. Pin and hole adjustment for a lever or similar detail.

[19]. Wedge bearing for locomotive horn plate guides, slide bars, and similar parts subject to wear.

[20]. Right and left-hand screw and wedge adjustment for roller bearings, &c.

[21]. Adjustment for wear used on engine crossheads to take up the wear of the working faces.

Adjustable Crane Balance Weights, [Section 18].

Adjustable V-guides, [Nos. 700] and [704].