Datamp.org Patents http://www.datamp.org/ Recently added patents en-us US Patent: 1,424,712 http://www.datamp.org/patents/displayPatent.php?id=49062&pn=1,424,712 Attachment For Wrenches Patentee: August Edwin Carlberg - Worcester MA Granted:1922-08-01
Manufactured by Walden-Worcester, Inc. - Worcester MA
Assigned to Walden-Worcester, Inc. - Worcester MA

The patent describes a clamp-on auxiliary structure to convert a brace socket wrench into a double socket with the second socket acting as a nut holder with the primary socket turning the bolt. A spring pulls the holder socket toward the primary socket. The primary application inspiring such designs was the oil pan of the Model T Ford engine which used bolts to fasten to the engine block rather than cap screws. The WALDEN-WORCESTER No. 6418 Nut Holding Attachment For Socket Wrenches shown on the "Alloy Artifacts" web site resembles this patent although it is marked "Pat. Dec. 21, 1915" which "Alloy Artifacts" connects to patent no. 1,164,815. The example shown in image (2) is marked WALDEN WORCESTER 6418 PAT. PEND.
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US Patent: 1,279,017 http://www.datamp.org/patents/displayPatent.php?id=52676&pn=1,279,017 Valve Lifter For Automobiles Patentee: Henry M. Schnabel - Greenwich Township, Fairfield County CT Granted:1918-09-17
Manufactured by Henry M. Schnabel Co. - Greenwich CT

Designed for "L-head" engine valves. The form in figs. 1, 2 & 6 is especially for the layout used in the Ford Model T engine, as shown in figs. 9 & 10. Known examples marked, "FORD SIZE VALVE LIFTER - PAT PEND / ABEL." Period trade directories identify the maker as Henry M. Schnabel Co. of Greenwich, CT. -- also advertised by Stevens.
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US Patent: 4,524,514 http://www.datamp.org/patents/displayPatent.php?id=52675&pn=4,524,514 Combination of A Tool and A Hollow Tool Sectional Handle Patentees: David H. Mallalieu - Springfield MA , Samuel N. Apostola - Southbridge MA , Douglas C. DeVries - Webster MA Granted:1985-06-25
Manufactured by Hyde Mfg. Co. - Southbridge MA
Assigned to Hyde Mfg. Co. - Southbridge MA

A bladed tool wherein the blade has a tang encompassed by a pair of similar handle halves connected by a threaded fastener located in aligned bores in the two handle halves and projecting into the material of the handle halves in the bores, and a projection and hole construction on the handle halves to align the handle halves during assembly. U.S. Patent nos. 348,330, 713,231, 941,901, 3,018,497, 3,759,180, and 3,935,787 are cited as relevant prior art along with French patent 543,877 (Sept. 1922)
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US Patent: 324,759 http://www.datamp.org/patents/displayPatent.php?id=20786&pn=324,759 Drilling-machine Patentee: Sterling Elliott - Watertown MA Granted:1885-08-18
Manufactured by Sterling Elliott - Newton MA

"In drill-presses as heretofore constructed the wear of the spindle, both in its rotary and longitudinal movements, has been upon the same bearings, which quickly wears the said bearings, and also causes the strain of the driving-belt to interfere with the longitudinal movement of the spindle. In my invention the cone has sleeve-like extensions which enter bearings, and the spindle takes independent bearings in said sleeves."
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US Patent: 651,220 http://www.datamp.org/patents/displayPatent.php?id=25384&pn=651,220 Pipe Wrench Patentee: Amos W. Warnock - Boston MA Granted:1900-06-05
Manufactured by Warnock Mfg. Co. - Worcester MA

The WARNOCK uses a fabric strap to bind around pipe. This provides a non-marring wrench for bright finish or soft metal pipe. Many extant examples include the "triple wear" modification from Peter Monahan's Feb. 18, 1919 patent (no. 1,294,515). In the fall of 1902, WARNOCK published a letter threatening civil action against the maker and users of the ROCO strap wrench. In reply, W.H. Rawe noted impending receipt of patent no. 714,610 and threatened civil action.
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