Benson Polytechnic High School - BluePrint Yearbook (Portland, OR)

 - Class of 1976

Page 132 of 244

 

Benson Polytechnic High School - BluePrint Yearbook (Portland, OR) online yearbook collection, 1976 Edition, Page 132 of 244
Page 132 of 244



Benson Polytechnic High School - BluePrint Yearbook (Portland, OR) online yearbook collection, 1976 Edition, Page 131
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Benson Polytechnic High School - BluePrint Yearbook (Portland, OR) online yearbook collection, 1976 Edition, Page 133
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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- cuitries. 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. -130-

Page 131 text:

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