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

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Updated: 10 hours 6 min ago

SE Patent: 211,760

10 hours 6 min ago
Tool Magazine for a Milling Machine Patentees: Frank Zankl - Milwaukee, Milwaukee County WI , Earl Rex Lohneis - Milwaukee, Milwaukee County WI Granted:1967-03-21

See also patents #D244,445 & D257,042.
This is one of 57,557 patents currently in the database at datamp.org

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US Patent: D27,919

December 16, 2017 - 3:45am
Frame For Wrenches Patentees: Mercer D. Blondel - Washington DC , Joseph A. Ryan - Washington DC Granted:1897-11-30

No wrench corresponding to this frame design is known. Term of patent 3 1/2 years.
This is one of 57,552 patents currently in the database at datamp.org

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GB Patent: 190,608,851

December 14, 2017 - 3:33am
Improvements in or relating to Adjustable Wrenches and the like Patentee: Charles V. Pollock - Galesburg IL Granted:1906-06-28

British patent for quick adjusting wrench formed of stamped sheet metal parts and corresponding to Canadian patent CA-114,361. The version shown in Fig. 1 with the clip-on auxiliary pipe jaw in Fig. 5 was produced in the U.S. as the POLLOCK AUTOMATIC Wrench. The design was described as being operable one-handed. Photos shared by Pollock's great-grandson show Pollock had lost his left arm. To date no corresponding U.S. patent has been identified; the company organized to produce the wrench incorporated in 1905.
This is one of 57,539 patents currently in the database at datamp.org

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US Patent: 889,244

December 12, 2017 - 3:11am
Wrench Patentees: Mahlon E. Lane - Houston, Harris County TX , Samuel N. Hall - Houston, Harris County TX Granted:1908-06-02

Interchangeable reversible gripping plates mount on a bent-end handle shank; the fixed end of the chain attaches at the "bend." See also parallel patents 899,245 and 899,246.
This is one of 57,535 patents currently in the database at datamp.org

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US Patent: 7,997X

December 11, 2017 - 3:11am
Rope making Patentee: Daniel Treadwell - Boston MA Granted:1834-02-05

Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. This patent was found in the Treadwell Papers located in the Harvard University archives. Description: For a new Machine to be used in Rope Making, and which is denominated an “Iron Tail;” Daniel Treadwell, Boston, Massachusetts, February 5. In the business of rope making, what are called rope tails are used for the purpose of holding back the “top,” so that the proper quantity of turn may be given to the lay. In the instrument before us, the strands to be laid are pressed upon by iron bolts, which move in suitable slides upon a flat disk, so that their ends are directed towards the centre of the disk, through which the strands are to pass. The bolts have grooves, or hollows, on their ends, to embrace the strands with sufficient force, which force is regulated by screws, fixed upon bow springs, and bearing against the outer ends of the bolts. The patentee observes, that “ various modifications may be made in the different parts of the machine, or instrument; but declares the character of this invention to be comprised in the construction and use of rubbers formed of some solid body, by which they are capable of preserving their own figure, and of constraining the rope over which they pass, to assume the figure defined by them.” Journal of the Fraklin Institute, Sept. 1834, pg. 183 The last operation in rope-making is the twisting and combining of the yarns into a large cord. It is necessary that the yarns should be laid side by side, and twisted together in a regular spiral. This is effected by a conical piece of wood called a top; it has equidistant grooves along its sides, into which the yarns are laid, and by which they are directed as they come together at the smaller end of the top. To hold back the top and increase the hardness of the rope, two or more cords or " tails" are attached to its sides, which the workman grasps, and, by winding them around the rope already made, regulates by their friction the hardness of the twist given it by the twisting-wheel. The success of the lay, its evenness and firmness, depend upon the judgment of the workman. For improving this process, Mr. Treadwell invented the instrument which he calls an "Iron-tail," the character of the invention being comprised in the construction and use of rubbers formed of some solid body, by which they are capable of preserving their own figure, and of constraining the rope over which they pass to assume the figure defined by them. Combined with the top, it is intended to hold it back in a more equable manner than the rope-tails, and thereby give a more equable hardness to the rope. The figure represents a tail to make a four-stranded rope. A A is a disk of wood or iron, having through it the hole or opening B B. c c are four blocks screwed upon the face of the disk A A. D D are four solid cylinders, or rubbers, which pass from the centre to the circumference of the disk, each having on its inner end a ridge to fit the crease between the strands. F F are springs, which, with the thumb-nuts G G, press the rubbers against the strands at E E. n H are holes in the disk, through which pass rods or ropes to keep the tail at a proper distance from the top. To use the instrument, the strands of which the rope is to be made are passed through the disk between the rubbers; if the top is then put in place, and secured at the right distance from the tail, which is so held that it cannot turn round with the rope, it will lay the strands even and smooth one upon another, without starting the tar. In 1831, after Mr. Treadwell had observed the working of his machines for six months he declared, in answer to the inquiries of one of the Commissioners of the Navy, Commodore Charles Morris, that the same amount of cordage from the same material which by hand-spinning would cost $30 a ton could be made for $15.62 a ton. "After a full consideration of these subjects, I have concluded that I will furnish any number of Gypseys, from fifty to one hundred, with all the roving and preparing machines, at $1,000 for each Gypsey." It was also shown that the rope produced is of a better quality, and stronger, than that made from hand-spun yarns. Inasmuch as no spinning grounds will be required, the cost of buildings will be much less; and, again, the work can be carried on at all seasons, which is not possible with hand-spinning. The offer to furnish the machines for the Charlestown Navy Yard was accepted. In 1832, a factory was also established by Mr. Treadwell on the Mill-dam, in Boston, capable of manufacturing nearly 1,000 tons annually. Previously to this, a joint stock company was formed, under the name of the Spinning Company, by Francis C. Gray, Horace Gray, and Daniel Treadwell. This continued until 1833, when another and larger company was organized, the Boston Hemp Manufacturing Company, which carried on the work of making cordage until 1858, about thirty years. During the whole period of the early manufacture of rope by this machinery, Mr. Treadwell had met with determined opposition from the trade of rope-makers, and was often insulted, and threatened with violence. After it was learned that an offer had been made to the Government to furnish machines, and that rope was in process of manufacture with them by the Government, the opposition took a different and more organized form. The rope-makers outside of the Government works were strenuous opponents of machinery, and had been zealous in promoting the designs of some rope-makers from New York and elsewhere in getting up a remonstrance to Congress against machine-spinning.* There were then eighty machines at work at the Charlestown Navy Yard. Memoir of Daniel Treadwell, 1888, pgs. 375-377
This is one of 57,535 patents currently in the database at datamp.org

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US Patent: 657,391

December 9, 2017 - 3:00am
Wrench Patentee: Thomas H. Brosnihan - Livermore Falls ME Granted:1900-09-04

The key elements of the patent are the hardened pipe-gripping jaw faces. The pipe-gripping jaw face on the adjustable jaw slides on a keyway-shaped base, and is pressed outward by a spring.
This is one of 57,535 patents currently in the database at datamp.org

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US Patent: 204,386

December 7, 2017 - 2:20am
Wrench Patentees: Jacob H. Sievers - Valparaiso IN , Henry T. Winkler - Valparaiso IN Granted:1878-05-28

The adjustable jaw is a separate piece with a threaded stud. The patent shows pipe and nut jaw pieces. The movable jaw is held by the thumb nut and tapered block. The tapered block cooperates with the thumb nut to tighten the grip of the jaws. The patent model went through an online auction in 2017.
This is one of 57,535 patents currently in the database at datamp.org

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US Patent: 460,015

December 6, 2017 - 1:40am
Pipe Tongs Patentee: George W. Johnson - Erie PA Granted:1891-09-22

The hook jaw is pivotally connected to its handle. The gripping face on the second handle is reversible, with teeth on both sides. A spur on the second handle engages with a notch in the hook jaw to increase the gripping pressure of the tool. A known example matching this patent is marked only with the patent date. Erie Mfg. & Supply adjustable jaw tongs with this patent date actually reflect Johnson's improved patent no. 540,790.
This is one of 57,514 patents currently in the database at datamp.org

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US Patent: 157,162

December 4, 2017 - 1:08am
Improvement in Bench Planes Patentees: James Duncan - Buchanan MI , William H. Talbot - Buchanan MI Granted:1874-11-24

Scraping plane with unique semi-circular adjustment mechanism to set the pitch of the blade. Concept appears to be fragile and probably somewhat expensive to manufacture.
This is one of 57,512 patents currently in the database at datamp.org

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US Patent: 2,008,367

December 3, 2017 - 12:56am
Detent Patentee: Harry A. Rhinevault - Chicago IL Granted:1935-07-16

Chindahl, Parker & Carlson - patent attorneys
This is one of 57,512 patents currently in the database at datamp.org

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GB Patent: 180,903,247

December 1, 2017 - 11:52pm
Rotative engine Patentee: Samuel Clegg - Manchester, county Lancaster England Granted:1809-07-26

The inventor, an engineer, is best known for his advances in gas lighting, especially the purification of gas using lime.
This is one of 57,511 patents currently in the database at datamp.org

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US Patent: 738,826

November 29, 2017 - 11:06pm
Self-adjusting plunger Patentee: Charles F. Marsh - Elgin IL Granted:1903-09-15

This device is used to hold a watch movement while pressing the hands into position on the center staff. The staff is supported so that pressure is not placed on the jewel bearing while the hands are being pressed on. An example has been reported, labeled on the outside "HARDINGE BROS. MFGRS. CHICAGO U.S.A." The inside is labeled PAT. SEP 15 '03. / CHAS. MARSH ELGIN, ILL."
This is one of 57,419 patents currently in the database at datamp.org

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US Patent: 1,359,814

November 27, 2017 - 10:53pm
Valve-spring lifter Patentees: Harry Wolf Kulp - Lancaster PA , Martin Cope Dellinger - Lancaster PA Granted:1920-11-23

The jaws remain parallel; the construction includes provision for holding the jaws locked in "full open" position. We have a report of an example labeled "KAY-DEE" and "Ford Type". Refined by patent no. 1,815,980.
This is one of 57,404 patents currently in the database at datamp.org

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US Patent: 2,478,728

November 25, 2017 - 10:43pm
Toggle Actuated and Adjustably Mounted Pivoted Jaw Wrench Patentees: Vincent S. Ward - Binghamton NY , Gordon K. Hurlbut - Binghamton NY Granted:1949-08-09

Harry Rodzuisky - patent attorney This patent relates to wrenches, and more particularly to those of the type disclosed in patent # 2,388,580.
This is one of 57,392 patents currently in the database at datamp.org

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US Patent: 1,112,619

November 24, 2017 - 10:36pm
Pipe Tongs Patentee: Johan Petter Johansson - Enkoping Sweden Granted:1914-10-06

Screw adjust pipe tongs corresponding to the version shown in Figs. 7, 8 & 9 in Swedish patent no. SE-36,093. This version was marketed internationally as the BAHCO Model 146 - 147 pipe wrench. From the specifications: "The present invention relates to improvements in already known pipe tongs" ... (e.g. Swedish patent SE-1,636 and improvements), "which consist of two legs engaging each other and having gripping jaws, one of said legs being guided and supported by a sleeve surrounding the other leg and resting at its lower end, against an adjusting nut screwed on to the leg. The connection between the sleeve and the leg supported thereby, in the previous constructions, was effected by means of a rivet serving as a pivot for the rocking of the leg with respect to the sleeve. According to the present invention, for the said rivet is substituted a segmental stud or projection arranged in the sleeve and bearing against and kept in place by a correspondingly shaped recess in the jaw head of the one leg."
This is one of 57,383 patents currently in the database at datamp.org

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SE Patent: 1,636

November 23, 2017 - 10:20pm
Universalrortang Patentee: Johan Petter Johansson - Enkoping Sweden Granted:1888-08-17

Adjustable tongs type pipe wrench. Corresponding British patent GB-188,818,593 was granted Dec. 19, 1888 (see that entry for English summary of the patent and photo of example). Several photos show Johansson proudly holding an example of this adjustable pipe wrench; with modifications to take advantage of modern manufacturing methods and materials it is still produced. Most Swedish production / distribution by B. A. Hjorth & Co (BAHCO).
This is one of 57,366 patents currently in the database at datamp.org

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GB Patent: 188,818,593

November 22, 2017 - 9:41pm
Pipe Wrench Patentee: Johan Petter Johansson - Enkoping Sweden Granted:1888-12-19

Adjustable pipe tongs type wrench; the design was a staple of the B. A. Hjorth Co., which took on the production and distribution of Johansson's tools. The company is better known by the trade name BAHCO. Johansson's best known invention was the "adjustable spanner" -- see SE-4066. Note: British patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of registration and the patent # (with "leading zeros" interposed to make the number total nine digits). This patent is #18,583 of the year 1888.
This is one of 57,355 patents currently in the database at datamp.org

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US Patent: 288,098

November 21, 2017 - 9:11pm
Wrench Patentee: Charles H. Myers - Phelps NY Granted:1883-11-06

This patent appears on the RATCHET WRENCH CO. BUFFALO adjustable jaw ratchet. Most examples show this patent date and Feb. 10, 1891 reflecting Myers' additional application patents. No. 446,073 was used for Keystone Mfg. Co.'s NONPAREIL ratchet wrench and drill. The ratchet also appears in patent #s 446,072 and 446,075.
This is one of 57,343 patents currently in the database at datamp.org

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US Patent: 1,553,623

November 20, 2017 - 8:56pm
Parallel Valve Spring Lifter Patentee: John H. McLeod - Stockton CA Granted:1925-09-15

The linkage between the handles and jaws keeps the jaw faces parallel. The spring-tensioned catch which maintains the setting to hold the spring in compression is not part of the patent's claims. This patent is noted in patent no. 1,879,330.
This is one of 57,338 patents currently in the database at datamp.org

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US Patent: 269,498

November 19, 2017 - 8:53pm
Wire -Splicer Patentee: Frank A. Gurney - Chicago IL Granted:1882-12-19

Slotted opening extending nearly to the handle with second opening or set of projections forming a transverse "groove." Used in conjunction with a pliers or tongs to form a splice where the end of each wire or set of strands is twisted around the body of the other wire or set of strands.
This is one of 57,329 patents currently in the database at datamp.org

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