Peck, Stow & Wilcox Co. (PEXTO) - Assigned Patents

Manufacturers Index - Peck, Stow & Wilcox Co. (PEXTO)

Peck, Stow & Wilcox Co. (PEXTO)
Southington, CT, Cleveland, OH, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

Submitting Patent Information

If you find a patent number or patent date by this manufacturer that is not on this list, please contact the Site Historian.

Key to Links for Patent Information

USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number	Date	Title	Name	City	Description
27,319	Feb. 28, 1860	Improvement in bending sheet metal	Orson W. Stow	Plantsville, CT	This sheet metal folder was highly successful for its manufacturer. The design was subsequently improved in patent 314,279.
70,917	Nov. 12, 1867	Flanging Machine	Orson W. Stow	Plantsville, CT	The device creates a flange on the edge of sheet metal, including forming a "recess" to hold wire for a wire reinforced edge. The specifications note earlier devices -- A.W. Whitney's 1847 patent and Charles H. Raymond's August 30, 1859 patent (25,278) -- and detail the differences. The patent date appears on the frame of a Peck, Stow & Wilcox tool corresponding to this design.
180,810	Aug. 08, 1876	Bending Machine	Pardon A. Whitney	Southington, Hartford County, CT
195,066	Sep. 11, 1877	Sheet-Metal Roller-Seaming Machines	Pardon A. Whitney	Southington, Hartford County, CT
212,110	Feb. 11, 1879	Improvement in bit-stocks	Obed Peck	Rowe, MA
		Improvement in bit-stocks	Daniel Powers	Shelburne, MA
218,593	Aug. 12, 1879	Bit-stock	Orson W. Stow	Plantsville, CT
246,904	Sep. 13, 1881	Bit-stock	Obed Peck	Rowe, MA	Pearson "B" rating for rarity.
269,762	Dec. 26, 1882	Machine for Notching Scale Beams	Pardon A. Whitney	Cleveland, Cuyahoga County, OH
293,957	Feb. 19, 1884	Pawl and ratchet	Robert C. Ellrich	Plantsville, CT	Ellrich Hardware Manufacturing Co. made a straight ratchet screwdriver that used this patent. Peck, Stow & Wilcox used this Patent on braces, Sample marked ,'No. 1002,P S & W Co'. Ellrich had many Patents used by Peck, Stow & Wilcox.
303,350	Aug. 12, 1884	Riveting Machine	Pardon A. Whitney	Cleveland, Cuyahoga County, OH
309,887	Dec. 30, 1884	Ratchet brace with side levers	Amos Shepard	Plantsville, CT
309,876	Dec. 30, 1884	Ratchet Drill	Caspar Reising	Plantsville, CT	One of these appeared in a Martin J. Donnelly auction
314,311	Mar. 24, 1885	Machine for folding sheet metal	William J. Bayrer	Southington, CT	This patent provides improvements on patent 27,319 to ease manufacture, to prevent slop due to wear, and to allow the adjusting screw nutâ€”a part subject to heavy wearâ€”to be more easily replaced.
320,172	Jun. 16, 1885	Wrench	Squire Robinson	Southington, CT	The patent focuses on the attachment between the adjusting screw and its supporting ferrule. The adjusting screw is held in place by the supporting shoulders on the ferrule, and the spring-loaded pivot pin. Many examples marked "Robinson Patent June 16, 1885" in an oval border. A 12-inch example marked P.S.&W. (Peck, Stow & Wilcox) WARRANTED with the patent date is also known. Peck, Stow & Wilcox was advertising Robinson's Patent Steel Bar Wrench in 1894. The ferule with supports on both side of the "rosette" is the subject of Robinson's May 27, 1884 patent (no. 299,165). An April 9, 1895 Amos Shepard wrench handle patent assigned to Peck, Stow & Wilcox (pat. no. 537,239) has a Robinson style adjusting screw included in the drawing.
22,514	Sep. 22, 1885	Machine for Folding Sheet Metal	William J. Bayrer	Southington, Hartford County, CT	This patent is equivalent to U.S. patent #314,311.
329,986	Nov. 10, 1885	Ratchet Drill	Pardon A. Whitney	Chagrin Falls, OH	The patent includes the friction feed, details of the ratchet mechanism, and the handle set tangentially to the ratchet head. Options for operation in constricted spaces are included. Items in 1885 issues of AMERICAN MACHINIST note Whitney's initial announcement at Chagrin Falls, OH and subsequent move to Warsaw, NY with production by the VARIETY MACHINE Co. By 1890, Whitney was in Southington, CT and this ratchet drill was produced by Peck, Stow & Wilcox.
339,729	Apr. 13, 1886	Machine for bending sheet metal	William J. Bayrer	Southington, CT	This patent provides an improvement on patent 314,311, namely moving the gage-operating handle from the side to the front.
364,153	May. 31, 1887	Auger Bit	Cornelius Whitehouse	Cannock, England	Previously patented in England. Process of forging or stamping the blank into a bulb containing sufficient metal to form the head and nose of the cutter and then forming the blank in a die. The cutter is distinct with a loop holes being formed in the process. Known example marked: PAT. MAY 31 1887/P.S.&W Co.
371,489	Oct. 11, 1887	Calipers	James H. Culver	San Francisco, San Francisco County, CA
379,877	Mar. 20, 1888	Tool Handle	Obed Peck	Rowe, MA	Two plates and two bolts are used to secure the auger or drill bit to the handle. The plates form a square recess that assists in holding the square shanked bit in place.
D18,376	Jun. 05, 1888	Clamp Frame	Pardon A. Whitney	Southington, CT	Design patent for "C" clamp frame. The design appears on Peck, Stow and Wilcox "C" clamps of the period, in conjunction with the clamp screw in 388,007.
385,983	Jul. 10, 1888	Clamp	Pardon A. Whitney	Southington, CT	Designed to allow max opening capacity of the clamp by providing a recessed area in the body where the screw passes through. Examples marked with STEEL NO # (# - indicating size in inches) SCREW along with mfg and location.
388,007	Aug. 14, 1888	Clamp Screw	Pardon A. Whitney	Southington, CT	Malleable "wing nut" type head pinned to a steel screw; this makes a more durable screw for "C" or bar clamps. This improvement was incorporated into clamps produced by Peck, Stow & Wilcox, including "C" clamps with bodies corresponding to design patent 18,376. -- See that DATAMP entry for photos, 1890 product description, etc.
434,960	Aug. 26, 1890	Tinsmith's Machine	Enos E. Stow	Plantsville, Hartford County, CT
450,463	Apr. 14, 1891	Grooving Machine Attachment	George Kennedy	QC,, Canada
475,055	May. 17, 1892	Tool-chuck	Robert C. Ellrich	Plantsville, CT
490,060	Jan. 17, 1893	Machine for cutting and bending sheet metal	William J. Bayrer	Southington, CT
42,662	Apr. 18, 1893	Grooving Machine	Grannis Hial Stow	Southington, Hartford County, CT
509,252	Nov. 21, 1893	Wrench	Amos Shepard	Plantsville, CT	The patent is for the manufacturing process. It describes steel casting and a broaching operation to form the rectangular opening down the length of the handle. The scale on the handle showing the size of the jaw opening is included in the patented features. The wrench corresponds to the Peck, Stow & Wilcox bicyle wrench announced in the April 10, 1893 "Iron Age."
509,920	Dec. 05, 1893	Cutting And Gripping Tool	James Lindsay	Waterbury, CT	Both the cutting and gripping versions have pivoted jaws connected to compound leverage handles. Peck, Stow & Wilcox was advertising "Lindsay Cutting Nippers" in the late 1890s.
525,386	Sep. 04, 1894	Expansible bit	Ellsworth Ford	New Haven, CT	From the 1902-11-27 issue of The Iron Age, page 78: "Peck, Stow & Wilcox Company, Southington, Conn., and 27 Murray street, New York, have just brought out Ford's patent Clark expansive bit, here shown. Fig. 1 illustrates the bit ready for use. Fig. 2 being an enlarged outline view of the working parts, indicating the method by which the cutter is prevented from slipping in use, even when farthest extended. The large screw fastens the cutter as in the original Clark and other expansive bits, a slight turn of the small screw against the rear end of the clamp greatly increasing the pressure of the clamp against the cutter...."
537,239	Apr. 09, 1895	Wrench Handle	Amos Shepard	Plantsville, CT	The handle is formed of a frame and two wooden shells. In the drawings it is shown in use with a screw-on ferule and adjusting nut inset in a frame like the Squire Robinson June 16, 1885 patent (no. 320,172). Peck, Stow & Wilcox screw wrenches with Robinson style adjusting nuts and handles conformable to this patent are known, although most P.S. & W. screw wrenches have handles matching later patents.
542,448	Jul. 09, 1895	Bit-stock	Henry V. Smith	Hartford, CT
50,148	Oct. 03, 1895	Meat Cutter	Robert Cosmos Ellrich	Southington, Hartford County, CT
553,059	Jan. 14, 1896	Wrench	Robert Cosmos Ellrich	Southington, CT	The main shank and base for the adjusting screw are in one piece. The shank is notched to fit around the nut portion of the adjusting screw. The movable jaw is formed of a second piece with the "back" side opened; it is closed around the shank and pinned or closed with a clamping screw. The patent was used for the SOLID BAR and SOLID STEEL nut wrenches produced by Peck, Stow and Wilcox, and also marketed under such brand names as KEEN KUTTER, etc. See also Pardon A. Whitney's Oct. 15, 1901 patents no. 684,488 and 684,489 for forging and forming patents for movable jaws like those found on this style of wrench.
562,878	Jun. 30, 1896	Pipe Wrench	Edward Wright	Worcester, MA	The movable jaw has a rocking section with a spring holding the gripping surface out from the shank. The arrangement allows for sufficient movement for the jaws to grip pipe, without proceeding so far as to crush the pipe. Compare this to John C. Speirs' Dec. 26, 1899 patent no. 639,785.
584,111	Jun. 08, 1897	Wrench	Robert Cosmos Ellrich	Southington, CT
594,225	Nov. 23, 1897	Metal-Crimping Tool	Philip W. Berridge	Sturgis, MI	Berridge's metal-crimpers vastly improved the utility of metal shears for sheet metal pipe. The crimping tool forms a new tapered end to allow pipe sections to slip together, after the pipe had been cut to length by the shears. The dies rock slightly on their attachment bolts. Peck, Stow & Wilcox was advertising the No.2 Improved Berridge Patent Double-Cutting Shears in 1915.
D28,512	Apr. 26, 1898	Wrench Frame	Robert Cosmos Ellrich	Southington, CT	The design shows the fixed jaw and shank of a bicycle wrench; the shank has a slot running the length of travel for the movable jaw, and teeth for the operation of an adjusting worm on the movable jaw. The form was used in the SNUGFIT bicycle wrench, marketed in 1897.
675,917	Jun. 11, 1901	Handle	George S. Allen	Southington, CT
684,488	Oct. 15, 1901	Manufacture of Wrench Forgings	Pardon A. Whitney	Southington, CT	Drop forging process patent showing die forms and successive stages to form a movable "monkey wrench" jaw (only first and final steps shown in edited drawing). Jaw forms conforming to the design in this patent appear on P. S. & W. "Solid Bar," "SOLID STEEL" and similar screw wrenches produced by P. S. & W. in the early 20th Century. (See patent no. 553,059 for the "solid bar" design which dictated the "split" feature of this movable jaw.) Parallel patent 684,489 describes a second method for forming movable wrench jaws where two forged pieces are welded.
684,489	Oct. 15, 1901	Manufacture of Wrench Jaws	Pardon A. Whitney	Southington, CT	Drop forging dies and series of forging processes to produce halves of a movable wrench jaw which would be welded together. (Only the initial and final stage images appear in the edited image.) One option would result in a movable jaw similar to the result of the forging process in parallel patent 684,488. See that DATAMP entry for links to additional related information.
732,850	Jul. 07, 1903	Hand Punch	Randolph Hayden	Haddem, Middlesex County, CT
780,787	Jan. 24, 1905	Wrench	Robert C. Ellrich	Southington, CT	The basic element is the bolster supporting nut attaching the bolster to the shank. Alternate means of finishing the handle are described. Produced as the P.S.& W. IDEAL monkey wrench.
809,936	Jan. 16, 1906	Bit-brace jaw	Robert C. Ellrich	Southington, CT
821,687	May. 29, 1906	Chuck	Pardon A. Whitney	Southington, Hartford County, CT
		Chuck	Robert C. Ellrich	Southington, Hartford County, CT
821,765	May. 29, 1906	Machine for Folding Sheet Metal	Elmer W. Talmadge	Plantsville, Hartford County, CT
821,689	May. 29, 1906	Chuck	Pardon A. Whitney	Southington, Hartford County, CT
		Chuck	Robert C. Ellrich	Southington, Hartford County, CT
821,688	May. 29, 1906	Chuck	Pardon A. Whitney	Southington, Hartford County, CT
		Chuck	Robert C. Ellrich	Southington, Hartford County, CT
855,292	May. 28, 1907	Ratchet Mechanism	Robert Cosmos Ellrich	Southington, CT
880,870	Mar. 03, 1908	Ratchet Mechanism	Robert C. Ellrich	Southington, CT
902,191	Oct. 27, 1908	Chuck	Pardon A. Whitney	Southington, Hartford County, CT
976,197	Nov. 22, 1910	Latch	Philip Mathes	Cleveland, Cuyahoga County, OH
982,559	Jan. 24, 1911	Chuck-jaws	Oscar R. Altwein	Southington, CT
988,364	Apr. 04, 1911	Knob	Philip Mathes	Cleveland, Cuyahoga County, OH
1,175,879	Mar. 14, 1916	Chuck	Lucien P. Blot	Southington, Hartford County, CT
1,272,613	Jul. 16, 1918	Machine-stand	Louis Broemel	Southington, CT	"The object of this invention is to produce a new and useful stand for small portable machines, such for instance as the machines used by tinners..." An example of this machine stand can be seen in the VintageMachinery.org Photo Index under the name of the maker: Peck, Stow & Wilcox Co.
1,406,004	Feb. 07, 1922	Metal Working Machine	Paul R. Hahnemann	Southington, Hartford County, CT
1,416,316	May. 16, 1922	Ratchet Mechanism	Edwin W. Bullard	Whitneyville, New Haven County, CT
1,452,062	Apr. 17, 1923	Bench Vise	Lucien P. Blot	Southington, Hartford County, CT
1,452,847	Apr. 24, 1923	Bench Vise	James A. Quinlan	Southington, Hartford County, CT
1,455,405	May. 15, 1923	Fixture for Grinding Beveled Chisels	James F. Nagle	Southington, Hartford County, CT
1,515,272	Nov. 11, 1924	Chuck for Bit Braces	Thomas Prentice	Southington, Hartford County, CT
1,521,367	Dec. 30, 1924	Gauge for Machines for Folding Sheet Metal	Paul R. Hahnemann	Southington, Hartford County, CT
1,552,253	Sep. 01, 1925	Chuck for Bit Braces	Leverett E. White	Southington, Hartford County, CT
1,651,087	Nov. 29, 1927	Chuck	Charles N. Ellrich	Southington, Hartford County, CT
1,774,155	Aug. 26, 1930	Sheet Metal Working Machine	Leiv S. Platou	Southington, Hartford County, CT
2,139,243	Dec. 06, 1938	Try Square	William H. Mohr	Southington, CT	An example appeared on ebay marked with the patent number and Pritzlaff
2,207,994	Jul. 16, 1940	Pruning Shears	Adolph J. Trapp	Southington, Hartford County, CT
2,208,860	Jul. 23, 1940	Adjustable Clip	Ernest F. Smart	Southington, Hartford County, CT
524,745	Aug. 14, 1940	Improvements in or Relating to Display and Storage Cabinets	Peck Stow & Wilcox Co.	Southington, Hartford County, CT	A stand has a flat top 1 and flared sides 2, 4, 5 enclosing a storage space accessible by lifting part or the whole of one or more of the sides about hinges at the top edge.
422,657	Sep. 12, 1944	Display and Storage Cabinet	Elmer Joseph Murray	Southington, Hartford County, CT
D151,853	Nov. 23, 1948	Hammer Head	William L. Ludwick	Mount Carmel, CT	The hammer head design is distinctive enough that it should be recognizable if P.S.& W. put it into production. The specifications cite design patent 117,207 as relevant prior art.
2,495,068	Jan. 17, 1950	Conterbalance for Slip Roll Formers	William E. Lundgren	Sharon, Norfolk County, MA
2,505,332	Apr. 25, 1950	Scratch Awl or the Like	William L. Ludwick	Mount Carmel, New Haven County, CT
3,277,763	Oct. 11, 1966	Notching Machine	Vernon L. Haug	Webster Groves, St. Louis County, MO