June 1968 Trailer Body Builders front cover
Downs-Clark, a custom builder of truck equipment used in the oilfield industry, standardized specifications on some of their more basic products to offset increasing engineering costs. Here, chief engineer Roger Clark demonstrates the use of the company’s 1,000-pound pickup crane and barrel tongs.
To convert an inverted 5th wheel trailer into a standard king pin trailer, Downs-Clark, which opened in 1947 in Odessa TX, used this attachment, which fit into both king pin sockets. It’s a 24” disc of ¼” plate with a king pin welded to each side.
Hercules Galion’s ContainerVan system was designed to simplify the handling and shipping of goods by making loading and unloading containers faster and easier. In this photo, the back of the trailer is raised off the ground by the company’s air-over-hydraulic system, with the ContainerVan’s legs lowered and extended by the driver. The same operation will be repeated at the front of the trailer.
A single Hercules ContainerVan awaits pick up by a delivery truck. Note at the top the roll-up and bumper pad guards for maintaining spacing between ContainerVans. The legs are retractable, allowing them to lift and slide back into the body of the truck.
Binkley marketed a support system developed specifically for transfer bodies. The transfer body concept is the system by which freight bodies (or containers) are interchanged at convenient distribution points. A transfer body requires four legs for support when detached from the vehicle chassis.
The Rolligon Corp. of Houston showed this amphibious tractor equipped with back-hoe and scraper blade at the American Gas Association-Edison Electric Institute convention held in May 1968 in Houston TX
National Fiberclad published a bulletin describing the characteristics and advantages of strong but lightweight panels with surface-fused fiberglass. Fiberclad panels are made by a high-pressure molding process that clads .025” fiberglass to one or both sides of 4’ x 8’ marine plywood panels ¼” to ¾” thick. Because of their resistance to abrasion, corrosion and weather, these panels are suited for trailer linings, bulkheads and doors.
Stainless Tank & Equipment (STE), a rapidly growing Wisconsin-based business back in 1968, primarily was engaged in the rebuilding and overhaul of tank transport trucks early on. Now, under the Hendricks Holding Company umbrella, is a leading manufacturer of rugged tank trailers. This photo shows a typical transport awaiting overhaul after rollover damage. Note the non-stainless rings in original construction. The company predicted a three-week rebuild in this case.
This is a typical (in 1968) foam block insulated tank trailer under repair. STE also repaired tanks damaged by corrosion and implosions.
In a story by guest author James M. Eley, then the chief engineer for Tyrone Hydraulics, we looked at the life expectancy, efficiency, cost and other factors associated with then-modern gear pumps designed to operate in the 30 to 330 gallons-per-minute range. [Center] This graphic illustrates the performance characteristics of a Tyrone 20450 pump at 2,150 rpm, 80 SSU. [Left] Here, the graphic shows the cubic dimensions of a 98 gpm pump at 2,500 rpm. [Right] This photo shows a gear motor with an overhung chain load.