Manufacturers Index - Armstrong Manufacturing Co.
Armstrong Manufacturing Co.
New Britain, CT; Bridgeport, CT, U.S.A.
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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USPTO's for finding information on machinery patents.
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269,141
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Dec. 12, 1882
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Pipe Vise
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Nathaniel W. Vandegrift |
Bridgeport, CT |
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274,544
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Mar. 27, 1883
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Wrench
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Frank Armstrong |
Bridgeport, CT |
This quick-adjust pipe wrench is based on Dan P. Foster's Dec. 9, 1879 patent (No. 222,484). It uses a slide with a spring-loaded pawl instead of a knurl for the adjustment mechanism.
This patent is noted in an unrelated later Armstrong wrench patent (no. 335,986). |
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298,043
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May. 06, 1884
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Wrench
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Nathaniel W. Vandegrift |
Bridgeport, CT |
This patent was used by the Armstrong Mfg. Co. of Bridgeport, CT for their screw-adjust pipe wrench. The wrench also draws upon Armstrong & Vandegrift's patent No. 392,300 granted November 6, 1888. |
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330,175
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Nov. 10, 1885
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Pipe-cutter
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Frank Armstrong |
Bridgeport, CT |
An example of this pipe cutter was seen in a 2018 Martin J. Donnelly auction. |
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Pipe-cutter
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Nathaniel W. Vandegrift |
Bridgeport, CT |
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335,986
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Feb. 09, 1886
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Wrench
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Frank Armstrong |
Bridgeport, CT |
A thumb lever at the base of the movable jaw lifts a toothed clamping block inside the jaw. The teeth engage fine teeth on the face of the main bar. Contrast this construction to "Atwater's Tiger" (patent no. 284,162) where the jaw is held by the cam action of an eccentric disk.
The specifications note Armstrong's previous patent (no. 274,544).
The British equivalent patent 188601870 was registered Febr. 9, 1886.
Although no examples are known, the design appears in a 1903 Armstrong Mfg. Co. advertisement. |
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Wrench
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Nathaniel W. Vandegrift |
Bridgeport, CT |
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337,627
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Mar. 09, 1886
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Pipe Wrench Attachment For Monkey Wrenches
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Frederick H. Seymour |
Detroit, MI |
A chain-wrench pipe gripping add-on. The wrench shown in the drawing is the F.H. Seymour Feb. 27, 1883 patent (no. 273,170).
Armstrong's Dec. 23, 1886 IRON AGE announcement shows the attachment on a "Coes" type wrench. |
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383,165
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May. 22, 1888
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Vise
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Frank Armstrong |
Bridgeport, CT |
Interesting bench vise where one jaw is a adjustable stationary jaw and the other is a screw jaws. |
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Vise
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Nathaniel W. Vandegrift |
Bridgeport, CT |
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392,300
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Nov. 06, 1888
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Wrench
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Nathaniel W. Vandegrift |
Bridgeport, CT |
This modification of Vandegrift's May 6, 1884 patent (No. 298,043) lengthens the adjustable jaw and frame so the threaded portion of the adjustable jaw does not extend to the bearing surface of the frame. |
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Wrench
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Frank Armstrong |
Bridgeport, CT |
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396,857
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Jan. 29, 1889
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Wrench
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Larns Frus Carstensen |
Bridgeport, CT |
The focus of the patent is the combination quick and screw adjustment. |
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434,424
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Aug. 19, 1890
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Pipe Threading and Cutting Off Machine
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Arthur W. Cash |
Bridgeport, Fairfield County, CT |
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452,768
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May. 26, 1891
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Nipple-chuck
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Arthur Wise Cash |
Bridgeport, CT |
This invention was seen in a 1901 plumbing supply catalog. |
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452,769
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May. 26, 1891
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Nipple-chuck
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Arthur Wise Cash |
Bridgeport, CT |
This invention was seen in a 1901 plumbing supply catalog. |
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452,770
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May. 26, 1891
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Nipple-chuck
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Arthur Wise Cash |
Bridgeport, CT |
This invention was seen in a 1901 plumbing supply catalog. |
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454,029
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Jun. 16, 1891
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Machine for Cutting Dies Taps &c.
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Arthur W. Cash |
Bridgeport, Fairfield County, CT |
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1,119,765
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Dec. 01, 1914
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Die Stock
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Frank C. Sanford |
Bridgeport, CT |
F. W. Smith Jr. - patent attorney
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