James Spencer Mercer

US Patent:

46453547, Feb 24, 1987

Filed:

Feb 26, 1986

Appl. No.:

6/833536

Inventors:

James R. Mercer - Akron OH

Assignee:

J. R. Mercer P.E. Company - Akron OH

International Classification:

G04B 1926
G01C 1734

US Classification:

368 15

Abstract:

A heliochronometer (10) for providing accurate clock time readouts at any known latitude and longitude location on the earth including, a base (15) to effect precision orientation and level mounting and having an unpstanding post (40), a latitude member (45) adjustably angularly positionable relative to the post for selecting a particular latitude, a gnomon assembly (65) extending upwardly from the latitude member, a longitude correction member (75) adjustably pivotally mounted about the gnomon assembly for effecting a longitude correction, a time dial support (20) pivotally mounted about said gnomon assembly and having an arcuate time dial (150) on which the shadow of the gnomon assembly is projected, and assemblies (90, 130) interconnecting the longitude correction member and the time dial support for adjusting the angular position of the time dial for daylight savings time and the equation of time.

US Patent:

40172422, Apr 12, 1977

Filed:

Oct 28, 1975

Appl. No.:

5/626303

Inventors:

James R. Mercer - Akron OH

Assignee:

The McDowell-Wellman Engineering Company - Cleveland OH

International Classification:

B29F 100

US Classification:

425243

Abstract:

A thermosetting injection molding machine includes an injector chamber, a distribution platen, four distribution nozzles, and a mold heating platen. A thermosetting material flows from the injector chamber to two crossed distribution chambers each of which extends from edge to edge completely through the distribution platen. Liquid coolant passages extend through the distribution platen along both sides of each of the distribution chambers. The distribution nozzles include cores which block the ends of the distribution chambers and which carry the thermosetting material through the mold heating platen to the mold. The distribution nozzles also include jackets having a greater coefficient of heat conductivity than the cores for maintaining all but the tip of the cores adjacent the mold at a temperature below the curing temperature of the thermosetting material. A removable mold for the machine includes a mold cluster adjacent each of the four distribution nozzles. The mold clusters each include a plurality of mold cavities and a runner for carrying the thermosetting material from its associated distribution nozzle to its associated mold cavities.

US Patent:

40449254, Aug 30, 1977

Filed:

Apr 16, 1976

Appl. No.:

5/677520

Inventors:

James R. Mercer - Akron OH

Assignee:

McDowell-Wellman Engineering Co. - Cleveland OH

International Classification:

B29B 506

US Classification:

222263

Abstract:

A power-retractable feeder for an injection molding machine in which an actuator is adapted to forcibly seal a button-type outlet nozzle of the feeder against a side inlet port of a charging cylinder without developing an unbalanced lateral load on the cylinder. As disclosed, the reaction force developed on the actuator is transmitted to the side of the cylinder opposite the inlet. The actuator is selectively operable to retract the feeder nozzle from the cylinder for inspection, removal, maintenance, or the like. The disclosed feeder is of the screw type driven by a rotary motor through a coupler which isolates an axial reaction force on the screw from the motor. Also disclosed is a remote actuator and associated linkage for operating a shut-off valve in the feeder nozzle at either the extended or retracted position of the nozzle.

US Patent:

39894347, Nov 2, 1976

Filed:

Oct 29, 1975

Appl. No.:

5/626841

Inventors:

James R. Mercer - Akron OH

Assignee:

McDowell-Wellman Engineering Company - Cleveland OH

International Classification:

B29F 302
B01F 506

US Classification:

425207

Abstract:

Mixing means in the form of a torpedo for an injection molding machine having a plurality of alternately isolated and intersecting flow paths for repeatedly dividing and recombining material flow streams to achieve uniform properties throughout the material. The paths are formed as right and left-hand helical channels on the circumference of the torpedo body, with the helixes of one hand having a pitch different from that of the other such that the flow paths intersect in a pattern which is bilaterally asymmetrical with respect to an axial net flow direction. The nonsymmetrical arrangement is formed to provide substantially greater mixing action than that obtainable with similar symmetrical arrangements.