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Aviation History
1944
1944 - 2330.PDF
28 Advertisements. FLIGHT NOVEMBER gTH, 1944 EXAMPLES OF CENTRELESS GRINDING STAINLESS STEEL PINS *T \0« p£fc j^rth ur scrivener MACHINE: No. ICA SCRIVENER CENTRELESS GRINDER OPERATIONS 1 & 2 Plunge grind -2505", -25025" dia. Reduction in dia. '010' in two plunges. Roughing 350 per hour. Finishing 250 per hour. OPERATION 3 Plunge •375"'. Dia. plus or minus •00025". Reduction in diameter "005". Production 300 pieces per hour. CENTRELESS GRINDERS Fine steels are worthy of fine finishes and no more economical method of finishing components such as that illustrated has yet been discovered than Centreless Grinding. Superfine finish and meticulous accuracy are obtained daily by our many users on machines whose versatility and simplicity enable them to produce a wide range of Bolts, Pins, Bushes, Rollers, Taper Pins, etc., using only semi-skilled labour. Rate of production is unequalled by any other method in almost all cases and in some instances automatic feeding devices enable phenomenal production figures to be reached. May we offer you our suggestions to help solve your problems? ARTHUR SCRIVENER LIMITED, BIRMINGHAM 24. Phone: ERD 2274-5 H-w.44 1 I GREMLIN-PROOF! The EVERTITE Locknut CANNOT be loosened by th; Gremlins of vibration, but ONLY by a spanner, because the EVERTITE actually employs vibration, as a necessary co partner, to increase its hold on the bolt. Study the sectional design—the V-shaped annular groove and the convex base. Your own mechanical knowledge will tell you that increasing vibration from base must cause the teeth of nut to bite upwards on bolt threads. The whole principle is that of natural metal elasticity. Note also that EVERTITE is the same size as any standard nut and therefore takes standard bolts. Available in steel or Aluminium Alloy ; also in a flat-based brass type for electrical connections. Write for test samples and full particulars. HUTS & BOLTS (DARLASTON) LTD- FOSTER ST • DARLAST0N METAL PROPELLERS LTD Stainless SteeL Specialist? PURLEY WAY• CROYDON MOM: THORNTON HEATH 1404 (4 LWCSJ CkAMS: MtTAPROPS, PHONC, IONDOK•
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