I EXHIBIT i ACS-4 Mr_.

CONTRACTING AND SUPPLY CORPORATION TCLEPHONE: EXmiu 119 xeaiN UMC T*ttT LANCASTER.

TECHNICAL BRIEFS ENCtNEERlMC DEVELOPMENTS moo oiOEsrEo roe suit powu N(| j PIPING, SUPPORTS An Unusual Defect in a Boiler Support* by Fuleon Boiler ond General insurance Co.

653 tbi helix in relntion to port.

114 ()7$e) Plan* Problem, (c*h.ri/,0WW|tla)) the bottom ot (he tilting chunhcu ^ install collector* which ore periodically into a auitabl oor^ mounted on wheelt.

Equipment Continued alloy luring low retaining desired electrical and mechanical character* lilies under all operating condition*.

Equipment pressure when valve i* wide open.

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MULTI-STAGE STEAM TURBINES Simplicity and reliability characterlxe the Murray Type UV.Turblne.

Fumeco onclonure problems an simplified whan engineers' ean 1st flexibility work /or thorn In the design of arches and walls.

die travel with respect to governor valve travel for each application and thus gives optimum speed regulation for the design conditions of the unit.

:$cfteajr- the new compact electro-hydronic cast iron boiler-- completely packaged, easy to install.

AMERICAN STANDARD standard gas boiler steam and water P if/' series TB to 10B 4-GS or GW-6, 7, 8, 9, 10, 11, 13, IS, 17, 19, 21, 22, 25, 28, 31 , 33, 37, 41 Cast iron reoair parts tor this boiler will be discontinued by series as follows: series 7B - Dec. 31, 1971 series 8B & 9B - Dec. 31, 1972 series 10B - Dec. 31. 1975 Jacket parts for this boiler are no longer available.

AMERICAN GW GAS STANDARD BOILER INSTRUCTION MANUAL NON PACKAGED BOILERS t I form NO.

Ansa uu // / r : \irf General Sales Department American p <$tai?