Latest Addition to the Directory of American Tools and Machinery Patents (DATAMP)

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Updated: 1 hour 10 min ago

US Patent: 144,734

1 hour 10 min ago
Cutting Nippers, &c. Patentee: Peter Broadbooks - Batavia, Genesee County NY Granted:1873-11-18

Interchangeable jaws fit in a common "stock;" a spring between the jaws open them, and they are operated by a cam ended lever handle. Jaw forms noted include nippers, saw set, shears.
This is one of 56,632 patents currently in the database at datamp.org

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US Patent: 588,712

August 15, 2017 - 4:45am
Drill Frame Patentee: Peter Broadbooks - Batavia, Genesee County NY Granted:1897-08-24


This is one of 56,627 patents currently in the database at datamp.org

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US Patent: 190,959

August 13, 2017 - 4:41am
Wrench Patentee: Horace Davis - Berlin WI Granted:1877-05-22

Self-adjusting nut wrench. One extant example is marked with the patent date, and is approx. 12 inches long.
This is one of 56,619 patents currently in the database at datamp.org

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US Patent: 1,498,488

August 10, 2017 - 4:27am
Pliers Patentee: Francis J. Stallings - Effingham IL Granted:1924-06-17

Improvement on Stallings' Dec. 18, 1917 Pat. (no. 1,250,690). The three jaws converge as the pliers are closed; the focus of this patent is a redesign to make the tool smoother and less likely to snag when removed from a pocket. Produced as the "TRIPLE GRIP PAT JUN 17, 1924" pliers. An example (PL562-13-2411) appears in Martin Donnelly's sale inventory. It is No. 266 in "Antique & Unusual Wrenches" by Schulzes.
This is one of 56,619 patents currently in the database at datamp.org

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US Patent: 2,397,095

August 9, 2017 - 4:24am
Plier Wrench Patentee: Milton W. Emmett - Los Angeles CA Granted:1946-03-26

The gear wheel connecting the lever handle to the rack teeth of the sliding jaw act and the shape of the movable jaw and the slot combine to hold the jaw in whatever position it is set. The spring-loaded pawl on the lever handle allows the handle to be repositioned in relation the the gear wheel. The tool as produced uses a different mechanism to connect the movable jaw and handle; there is no retractable pawl on the lever handle, and the movable jaw structure incorporates an adjusting screw. (See patent no. 2,654,282.)
This is one of 56,618 patents currently in the database at datamp.org

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US Patent: 787,896

August 7, 2017 - 4:21am
Plumb bob Patentee: Maschil D. Converse - Newark NJ Granted:1905-04-25

Martin Donnelly had one of these.
This is one of 56,618 patents currently in the database at datamp.org

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US Patent: 1,888,885

August 5, 2017 - 2:15am
Method of Making Tool Handles Patentee: Ben Pepperdine - Chicago IL Granted:1932-11-22

The patent describes processes for forming the "head" portion of a ratchet wrench and attaching the remainder of the handle. The drawings include drawings of the completed wrench and details of the internal ratchet structure The patent number appears on the BOG 202A ratchet. Brayton & Richards - patent attorneys B. Pepperdine owned Bog Mfg. Co. They made tools for Western Auto stores which were owned by his brother.
This is one of 56,617 patents currently in the database at datamp.org

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GB Patent: 189,925,244

August 3, 2017 - 1:51am
Indicators Patentee: John Clark Dobbie - Glasgow Scotland Granted:1900-11-24

In steam-engine indicators, and more especially in those of the type described in Specification No. 11,026 of 1898, and with the object of improving the construction and the lessening the weight of the moving parts of such indicators, so as to render them more sensitive, the overhanging arm, and preferably also the back stay, radius link, and other moving links connected thereto, are made of aluminum or similar light metal or alloy. The pin joints or other parts on which the arms and links oscillate, are made of steel or other hard metal, the pins being of hard metal, and the orifices through which they pass being lined with bushes of metal hard enough to withstand wear. The piston and piston-rod are by preference made of a single piece, which is turned down to form two or more disc-like pistons at one end, and is reduced in diameter to form the piston rod throughout the remainder of its length, and this piston-rod may be bored out to lighten it. The discs may be cupped or turned with a lip or flange to fit the cylinder on the indicator, and one of these discs fits the cylinder steam tight, whilst the other, or others, may serve as a guide or guides, and may be perforated for further lightness, and to allow of the passage of grit into the space between discs.
This is one of 56,617 patents currently in the database at datamp.org

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US Patent: 2,826,107

July 29, 2017 - 1:11am
Ratcheting Torque-Limiting Wrench Patentee: Robert Glen Woods - Huntington Park CA Granted:1958-03-11

A collar between the driven member and the torque-limiting means includes a ratchet so that that force can be applied only in one direction. The torque-limiting ball and spring structure can be adjusted to insure the "release" matches the predetermined value. U.S. patent numbers 1,860,871, 2,157,574, 2,159,373, 2,358,461, 2,503,499, 2,601,044, 2,601,799, 2,768,547 and French patent no. 965,788 are cited as references in the specifications. The patent number appears on a Chicago Specialty Mfg. Co. "T" handle torque wrench.
This is one of 56,600 patents currently in the database at datamp.org

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US Patent: 919,370

July 25, 2017 - 12:24am
Combination Tack Hammer and Puller Patentee: Nels Lund - Minneapolis MN Granted:1909-04-27

The combination tack hammer and puller was designed to affix and remove labels from wooden rail cars, and similar functions. The tack holder would enable reaching above the normal range of reach to set the tack, which could then be driven by the hammer poll. The spring works to open the jaws. A known example is marked NELS LUND & CO. MINNEAPOLIS MINN, and is 7 1/2 inches long.
This is one of 56,578 patents currently in the database at datamp.org

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CA Patent: 126,554

July 24, 2017 - 12:24am
Foot vise Patentee: Peter Jardine - Hespeler ON Canada Granted:1910-06-28


This is one of 56,575 patents currently in the database at datamp.org

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US Patent: 1,898,568

July 21, 2017 - 10:37pm
Tool Patentee: Frederick F. Pazzano - Waltham MA Granted:1933-02-21

A pliers type tool with jaws designed to serve as a wrench for the clamp bolt nut, a lifter to remover the terminal from the battery post, and a spreader and reamer for the terminal clip. The patent appears on a stamped steel version of the tool, and a version made of forgings. The revised drawings accompanying reissue patent RE19,027 illustrate the tool in use.
This is one of 56,531 patents currently in the database at datamp.org

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US Patent: 623,800

July 20, 2017 - 9:57pm
Wrench Patentee: James L. Martin - Marion Center PA Granted:1899-04-25

The jaws tend to spring apart and the screw and thumb nut close them. The rigidity of the spring prongs that form the jaws mean they resist any tendency to spring or twist sideways. A known example is approx. 7 1/2 inches long overall, and is marked with the patent date.
This is one of 56,531 patents currently in the database at datamp.org

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US Patent: 240,866

July 19, 2017 - 8:50pm
Clasp for adjusting hammocks Patentee: Vincent P. Travers - New York NY Granted:1881-05-03

Submitted as a What's It to mwtca. Marked with the patent date
This is one of 56,531 patents currently in the database at datamp.org

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