September_1971 — Page 47

trial packs containing 4,600 cm3. Cur-

ing takes place above 10 degrees C and New RIDGID Quick-Acting

the material will develop sufficient

strength within 24 hours to permit a water pressure test. Complete cure is effected within 7 days at a constant temperature of not less than 18 de- grees C.

SPIRAL STAIRCASE

A spiral staircase that needs no centre pole and can be used indoors or outside is available from Style Fitted Furniture Ltd., 245 Sutton Road, Southend on Sea, Essex, UK. The complete unit packs flat for shipment. This easy-to-install staircase complies

Tubing Cutters

Protected, constant-force spring provides uniform tension over long use.

Durable nickle-copper finger-tip release lever.

Feed screw always has sufficient travel.

Hardened solid steel rolls, roll pins and cutter pin with heads, provide stable, lasting alignment for guaranteed- perfect cutter wheel tracking.

n

Steel wear sleeve.

RIDGID

Beam-type,

wide flange aluminum alloy frame gives

solid, lasting support.

with British Building Regulations. It has wide treads and a laminated ma- hogany handrail on both sides. Solid panels round each side prevent any dangerous gaps.

Strength is given by the two bent beams, formed when the interlocking outer and inner stair panels are bolted together. Further strength is provided by the two handrails. Two unskilled men can assemble and install a stan- dard flight in less than a day.

Springiness, inherent in the design, permits the structure to be stretched or compressed slightly before locating the wall fixings.

Intermediate fixings between the floors with brackets and expand- ing bolts eliminate the springiness. Special fittings and protective paint are used for outside installations. The overall diameter is 2,300 mm, the rise 200 mm with 12 treads per flight. The height of the staircase, hall floor to landing, is 2,600 mm. The weight is 322 lb (146 kg) per flight.

Far East BUILDER, September 1971

Rugged aluminum alloy cutter wheel housing gives maximum support and accuracy.

Four models, with capacities from 1/4" through 41⁄2" O.D., cut thin and heavy-wall copper, brass and aluminum tubing, aluminum pipe and thin-wall conduit. Wheels available for cutting plastic.

The most advanced tubing cutters made! Guaranteed to give clean, square cuts over long service life. Fast closing. Fast cutting. Fast opening. Push handle in to snug up cutter wheel to tubing. When cut is complete, just press release lever and cutter wheel slides smoothly away from tubing.

RIDGID Quick-Acting Tubing Cutters are at your Wholesaler's. The Ridge Tool Company, Elyria, Ohio 44035, U.S.A.

RIDGID

Ridge Tool Subsidiary Emerson Electric Co.

EMBASON

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