John P. Glass - Essington PA Anton K. Simson - San Diego CA
International Classification:
B63B 306 B63B 520 B32B 502
US Classification:
9 6P
Abstract:
A building element useful in constructing plastic boat hulls and methods of making the element. The building element includes a plurality of glass fibers in the form of roving which are substantially parallel to each other, a resin binding the glass fibers together, and a plastic sheet covering one or both sides. The building element may be continuously made by passing a plurality of strands of glass fiber roving through a perforated guide plate into a trough of resin formed by the bight of a pair of rollers, feeding a plastic sheet over each roller into said bight to protect the rollers from the resin and to form a sandwich structure with the resin impregnated strands of roving being enclosed within the plastic sheets, and cutting across the plastic sheets and resin impregnated glass strands at a desired angle to form a stamp element. The building element may also be made by passing glass fiber roving through a resin pot and winding the roving around a drum which is covered by a polyethylene sheet. When the roving has reached the desired thickness, the building element is formed by cutting across the sheet and fibers and removing it from the drum.
A syringe loader and method that fill a syringe with a correct dosage of two or more ingredients without referring to or seeing the syringe graduation markings, comprising a bottle holder cradle, a syringe carriage slidably connected to the bottle holder cradle, alignment apparatus for aligning the syringe with each of the bottles and inserting the syringe needle into each bottle, and a dosage gage and a dosage stop indicator for loading the correct dosage from each bottle into the syringe.
An apparatus for evaporating liquid fractions is disclosed. The apparatus includes a nozzle from which a hot stream of non-reactive gas is directed onto the surface of the fraction that is to be evaporated, while the fraction and the nozzle are thermally insulated and sealed from the surrounding atmosphere. Means are disclosed for electronically, automatically controlling the evaporation process. A process for the effective evaporation of liquid fractions is also disclosed and claimed.
A temperature control device generates a signal proportional to deviations of the temperature from a predetermined set point. This first signal is averaged and a second signal produced in response to it. This second signal deviates from a reference level periodically for a duration proportional to the first signal, e. g. a square signal of variable on/off ratio. This signal is filtered to produce a sloping signal and this signal is, in turn, combined with the first signal to regulate the heat supply.
Isbn (Books And Publications)
Humanistic Society; Today's Challenge to Sociology
Harrington Elementary School Philadelphia PA 1966-1972, St. Paul School Philadelphia PA 1968-1969, George Wolf Elementary School Philadelphia PA 1972-1973, John P. Turner Middle School Philadelphia PA 1973-1974, General J. Harry LaBrum Middle School Philadelphia PA 1974-1976