Manufacturers Index - Ridge Tool Co.
Ridge Tool Co.
Elyria, OH, U.S.A.
Manufacturer Class:
Wood Working Machinery & Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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If you find a patent number or patent date by this manufacturer that is not on this
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USPTO = U.S. Patent Office .
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USPTO's for finding information on machinery patents.
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1,549,164
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Aug. 11, 1925
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Pipe Wrench
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William O. Thewes |
Ridgeville, OH |
The design is intended to be strong enough to withstand strain at right angles to the "intended" direction (as in bending pipe), and have the spring in a protected location.
This patent and Thewe's Sept. 1, 1925 patent no. 1,552,091 are the beginning of the RIDGID line of pipe wrenches. |
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1,552,091
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Sep. 01, 1925
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Pipe Wrench
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William O. Thewes |
North Ridgeville, OH |
The features noted in the patent include the size scale on the shank of the movable jaw, friction springs in the casing to hold the jaw in the adjusted position, flared bearing surfaces at the back side of the casing, and the shape of the gripping teeth. 6 in. and 14 in. RIDGID pipe wrenches matching the middle drawing (or earlier version with a flat spring - pat no. 1,549,164) and marked in part "PAT PEND." are known. A 10 inch "THEWES PYPE-FIT-ER" (tm) PAT APLD FOR // THE ELYRIA WRENCH CO. ELYRIA O. example apparently represents Thewes' initial production of the wrench before his association with Ridge Tool.
Thewes' Sept. 10,1929 patent (no. 1,727,623), and the wrenches citing that patent have many similar features. |
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1,727,623
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Sep. 10, 1929
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Wrench
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William O. Thewes |
North Ridgeville, OH |
The wrench is identical to the patent drawing. Known example marked "RIDGID PAT 1727623 // RIDGE TOOL CO ELYRIA O U.S.A."
The wrenches with this patent number have many features carried over from Thewes' Sept. 1, 1925 patent (no. 1,552,091). |
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1,833,980
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Dec. 01, 1931
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Pipe cutter
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William O. Thewes |
North Ridgeville, OH |
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2,004,639
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Jun. 11, 1935
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Diestock
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William O. Thewes |
Ridgeville, Warren County, OH |
Reversible pawl structure for a ratcheting pipe threader having interchangeable die heads. |
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2,051,755
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Aug. 18, 1936
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Pipe Wrench
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William O. Thewes |
North Ridgeville, OH |
A double compression coil spring formed of a single piece of wire forms the "centering" springs for the frame of a Stillson type pipe wrench. The original application was divided, resulting in this patent and no. 2,076,830, isssued April 13, 1937. |
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2,076,830
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Apr. 13, 1937
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Pipe Wrench
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William O. Thewes |
Cleveland, OH |
The patent replaces leaf springs with conical compression coil springs to provide the "centering" function for the frame of a Stillson type pipe wrench.
Photo of known example marked "IMPROVED STILLSON / PAT. NO. 2076830" supplied by Sam Spector.
The original application was divided, and resulted in this patent and no. 2,051,755, issued Aug. 18, 1936. |
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D143,075
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Dec. 04, 1945
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Pipe Cutting Tool
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Carl H. Ingwer |
Elyria, Lorain County, OH |
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2,780,944
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Feb. 12, 1957
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Reversible drive for power tools
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Elmer J. Ondeck |
Brookfield, IL |
Seen on YouTube: an example of this reversible speed reducer. The box is labeled "Ridgid / Supreme Model No. 4100 Versamatic reversible power drill speed reducer / The Ridge Tool Company / Elyria, Ohio". This device may have been manufactured by Supreme for resale by Ridgid. |
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3,015,246
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Jan. 02, 1962
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Slideable Outer Jaw Wrench
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Walter Buyer |
North Olmsted, OH |
The jaw design is to fit hexagonal nuts or plumbing fittings. The wrench using this jaw engages three flats and a corner of the hexagon, and can be slid off and repositioned without changing the adjustment.
The wrench was produced in both variations shown in the patent drawings. Some of them bear the patent number. |
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