Manufacturers Index - Fred W. Wappat
Fred W. Wappat
Pittsburgh, PA; Mayville, NY, U.S.A.
Manufacturer Class:
Wood Working Machinery
This page contains information on patents issued to this manufacturer.
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1,170,371
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Feb. 01, 1916
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Reversing mechanism
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Fred W. Wappat |
Pittsburgh, PA |
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1,314,291
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Aug. 26, 1919
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Sawing appliance
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John D. Wallace |
Chicago, IL |
There are two major innovations: a tilting-arbor mechanism and an improved retractable guard; other improvements are a cutout in the guard so the operator can see the cut line, and a means of clearing sawdust from the cut line.
J. D. Wallace & Co. used this patent in what was probably the first commercially successful small tilting-arbor tablesaw (see patent 77,606 for Jonathan Grosvenor's much earlier but larger tilting-arbor saw). The blade-guard portion of this patent was licensed by Wappat Gear Works for their handheld circular saws. |
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1,399,173
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Dec. 06, 1921
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Shock-absorber for reversing mechanism
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Fred W. Wappat |
Pittsburgh, PA |
"This invention relates to shock absorbing means in power reversing mechanism, and is particularly adapted for absorbing shocks due to the reversal of the drum or cylinder in power driven washing machines."
This invention is of interest because Wappat went on to become one of the first makes of handheld circular saws. |
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1,477,562
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Dec. 18, 1923
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Gear cutting
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Fred W. Wappat |
Pittsburgh, PA |
This invention gives improvements on the cutting of bevel gears. Co-inventor Wappat went on to become one of the first makers of handheld circular saws, but before that he manufactured gears. So far as we know the Wappat Gear Works did not manufacture their gear-cutting machines for sale. |
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Gear cutting
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Robert L. Hibbard |
Pittsburgh, PA |
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1,602,138
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Oct. 05, 1926
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Washing machine
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Fred W. Wappat |
Pittsburgh, PA |
Of interest because the inventor went on to become one of the earliest makers of handheld circular saws. |
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1,623,290
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Apr. 05, 1927
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Portable saw
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Fred W. Wappat |
Pittsburgh, PA |
The chief innovation is an improved retractable guard; other improvements are a cutout in the guard so the operator can see the cut line, and a means of clearing sawdust from the cut line.
This design was subsequently improved in patent 1,830,579 and patent 1,830,580. |
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1,633,370
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Jun. 21, 1927
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Door-lock-mortising machine
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Samuel Hunter |
Bellevue, PA |
This is the Alta door lock mortiser that was made by the Wappat Gear Works. |
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1,718,324
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Jun. 25, 1929
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Mortising machine
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Fred W. Wappat |
Pittsburgh, PA |
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311,578
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May. 19, 1931
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Mortising machine
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Fred William Wappat |
Pittsburgh, PA |
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1,830,579
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Nov. 03, 1931
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Electric handsaw
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Fred W. Wappat |
Pittsburgh, PA |
Improvements to patent 1,623,290; see also patent 1,830,580. |
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1,830,580
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Nov. 03, 1931
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Electric handsaw
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Fred W. Wappat |
Pittsburgh, PA |
Improvements to patent 1,623,290; see also patent 1,830,579. |
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1,929,662
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Oct. 10, 1933
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Motor driven tool switch
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Fred W. Wappat |
Pittsburgh, PA |
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2,014,541
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Sep. 17, 1935
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Pressure regulating valve
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Fred W. Wappat |
Pittsburgh, PA |
Of interest because the inventor was one of the earliest makers of handheld circular saws.
"This invention relates to pressure regulating valves, and is designed particularly for use in connection with hot water heating systems, in which it is necessary to control the pressure supplied from the main to the boiler, and also the pressure generated in the system due to the heating of the water." |
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