1950-HKRS30-8-40_Part02 — Page 31

Fully automatic internal cylindrical grinding machines: (A) automatic sizing; or (B) centreless.

Automatic sizing centreless external cylindrical grinding machines.

Automatic oscillating lap radial grinders for making ball bearing races.

Lathes, Turrel, 3" and over bar capacity 24" and over chuck capacity.

Surfacing and boring lathes, ro" centre height and over.

Crankshaft and camshaft lathes. All sizes and types.

Machines for automatically balancing and correcting metal parts dynamically.

Relieving lathes: machines specially designed for the "back- ing off" of rotary cutters to provide clearance behind the cutting edge.

*Presses, Mechanical, with an effective operating pressure of

over 1,000 tons.

*Presses, Hydraulic with an effective operating pressure of

over 1,000 tons.

tons.

*Forging hammers having a falling weight exceeding 3-5

Forging machines capable of operating on her stock of a diameter exceeding 3-5" or of equivalent cross-section.

Marine and aircraft propeller blade profiling machines (plan- ing, shaping, milling or grinding).

Spar millers.

Continuous strip mills and controls.

Plate mills and controls (except mills for fine plate).

Seamless tube mill and controls.

Reversible type electric motors over 1,000 h.p. and automatic controls for starting, stopping and reversing.

* English or metric tona.

Equipment or plaats for continuous casting of metals into partially-processed mill product forms.

Military type jigs, fixtures and plate metal working acces sories (except machines).

Deep hole drills and deep hole drilling machines. Automatic multiple spindle drilling machines, consisting of a cluster of twelve spindles or more driven from one power unit.

Automatic or semi-automatic cam-operated thread-cutting machines, single or multiple spindle.

All machines and equipment specially designed for manufac- turing armaments including i

(a) Shell lathes.

(b) Cartridge case trimming and head finishing lathes. (c) Special spinning lathes for bombs.

(d) Hydraulic presses for shell banding (tyre setters). (e) Special forging machines for bomb nose and tail. ( Shell tappers.

(g) Armour plate drilling machines (not including radial). (4) Special artillery centrifugal casting machines.

() Special boring machines for aircraft bomb nose and tail. (k) Gun-jump screw lathes.

(D) Rifle working machines.

Tyres, pneumatic, and inner tubes of a kind specially con- structed to be bullet proof or to run when deflated.

Asbestos (strategic grades). Amosite, standard commercial grade (Bi, B3 & 3/MD. 2.)

Mica (strategic grades). Block (good stained or better), film and muscovite splittings and phlogopite splittings which conform to the American Society of Testing Materials standards or ta India-Calcutta standards.

All foil (paper thickness) rolling equipment.

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