An interesting variation of rigid-foam plastics construction will be seen

18th September 1964, Page 161

18th September 1964

Page 161

Page 161, 18th September 1964 — An interesting variation of rigid-foam plastics construction will be seen

Noticed an error?
If you've noticed an error in this article please click here to report it so we can fix it.

on Stand 140, where Tough Plastics Ltd. is displaying a Tufplas tanker on a rigid eight-wheeled chassis which has a payload capacity of 15-75 tons and weighs only I ton 7 cwt. complete with mounting saddles and straps. The internal surface of the tank is of unplasticized rigid P.V.C. and this is reinforced by a laminate of polyester resin and glass-fibre, which is bonded to the inner layer by a patented process. Insulation and impact protection is provided by a layer of rigid foam, and the outer skin comprises an additional Layer of polyester resin and glass-fibre. Developed by the company, special nonsurge baffles are an important feature of the tank, which has an internal diameter of 5 ft. 9 in. and a length of 20 ft. 6 in.

The means employed to drive a conventional type of refrigerating plant is an all-important detail of the standard type of refrigerated vehicle and it is, therefore, noteworthy that a Thermo King HM2OD unit in a light-alloy lift container, to be exhibited by J. H. Sparshatt and Sons Ltd., on Stand 110, is operated hydraulic ally, fluid being supplied from a p.t.o.-driven pump. An electric motor is incorporated in the system to provide an alternative means of operation when the vehicle is standing in the depot.

Sparshatt semiframeless construction is used with 5 in. of

expanded polyure thane insulant.

Designed for the bulk transport of frozen foods, meat and other perishables, the container has a length of 23 ft. and will be seen mounted on an Albion Reiver chassis.

Hydraulic drive is also a feature of the rotary seal of a pneumatic discharge type of aluminium body which will be exhibited by Carmichael and Sons (Worcester) Lid. on Stand 123 and it is pointed out by the makers that this form of drive gives accurate control of both seal speed and air .speed. Designed to handle agricultural materials. limestones. fine sand and certain chemicals, the body

is tipped by Milshaw lifting gear and also features a special type of air escalator designed to scour the material from the floor and corners for delivery to the seal.

A body that can be demounted without the aid of overhead lifting gear or fixed stands has ou'standing advantages for many types of traffic, the main problem in evolving an easily demountable body being the avoidance of additional vehicle gear that substantially reduces the payload capacity of the vehicle. Possibly the most interesting example of easy handling at the show will be a new hydraulic jacking system and demountable Luton type van to be displayed by the Spenborough Engineering Co. Ltd. on Stand 23. power for which is provided by a . trolley-mounted, mains-operated, electrically-driven hydraulic pump, which is used to energize the jacks at the user's depot to enable an empty body to be exchanged for a full one. The total payload penalty of employing the system is 10-12 cwt.

Folding-type, hydraulically-operated jacks are fitted to the body-longitudinalssupport structure, a quickly detachable coupling being provided for linking the hydraulic circuit to the power unit. The van is 23 ft. long and is of composite timber-and-steel construction. A locking device is incorporated in the frame.

Jacking stilts are offered as optional equipment on a demountable solid-fuel tanker fitted with an auxiliary engine and with either a conveyor boom or auto

An interesting variation of rigid-foam plastics construction will be seen

Page 161

Tags