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Page 132 text:
Plasiics Elffara Involvement
The Plastics Shop, headed by Mr. Gerald Waterbury,
was in its sixth year at Benson. The student who took this
shop learned the basics of working with materials, and
the various processing methods.
This shop was available for students in their sophomore
year. Although this was a non-major shop, juniors and
seniors interested in pursuing the field may take the
course as an elective. The advanced students were able to
make fiberglass kayaks, rowboats, and many other
projects, to prepare themselves for the future.
Equipment in the shop included five injection molding
machines which formed thermo plastic materials into
objects. The Rotational Molding ovens fabricated hollow,
one piece flexible parts from vinyl plastisols or from
polyethylene powders. The Extruder Machine molded
thermoplastic materials into continuous sheeting, film,
tubes, rods, cable and cord. The Compression Molding
Press squeezed a material into a desired shape by ap-
plication of heat and pressure to the material in a mold.
Other machines used in Plastics are the Vacuum For-
ming Machine andthe Fiberglass Spray-Up System.
Mechanics. 'I'heory Taught
The Fluid Power Shop taught students all about
hydraulic systems. Sophomores learned basic hydraulics
and fluid power theory which consisted of ten basic cir-
The student that majors in Fluid Power helped to fix
equipment such as jacks, fork lift trucks, and any other
equipment that has to do with Fluid Power. The majors
studied advanced hydraulics, pneumatics, hydraulic
systems, and fluidics, which is the control of fluid power
components by air.
Lift trucks that don't operate are supplied by industries
throughout Portland for the shop to work on. When a fork
lift is completely fixed by the shop and is sold, the shop
receives a percentage of the selling price. The money is
then used to buy supplies for the next repair job.
For a person interested in going into the hydraulic
engineering or mechanical engineering field, this is an
excellent shop. Mr. Thomas Herring teaches Fluid Power.
ABOVE: Tom MacComber U21 fiberglasses a rowboat. TOP: Marlv
Barnes U21 works on advanced training bench. TOP CENTER.
Plastics student engraves plastics. MIDDLE: Mr. Tom Herring
examines hydraulics part. TOP RIGHT: Mr. Gerald Waterbury
observes George Porter UOJ welding a piece plastics. BOTTOM
RIGHT: John Ross U2l, Jeff Hotchkiss U lj, and David Hamilton
jill work on test benches. BOTTOM LEFT: Students fiberglas
rowboat in Plastics class.
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