P. E. Chapman Electrical Works, Inc. - Assigned Patents

Manufacturers Index - P. E. Chapman Electrical Works, Inc.

P. E. Chapman Electrical Works, Inc.
St. Louis, MO, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

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Patent Number	Date	Title	Name	City	Description
733,149	Jul. 07, 1903	Method of changing the frequency of single-phase induction-motors	Penrose E. Chapman	St. Louis, MO
822,186	May. 29, 1906	Elevator safety-alarm	Penrose E. Chapman	St. Louis, MO	This invention consists of a series of "small objects" such as chains, ropes or cloth from the leading edges and surfaces of an elevator car to provide a warning touch to anyone in the way of the car while it is moving. The invention relies on the person being able to quickly move out of the way when they feel the touch ("tickle") of the small objects.
874,163	Dec. 17, 1907	Armature-winding machine	Penrose E. Chapman	St. Louis, MO
1,121,798	Dec. 22, 1914	Drum-armature-winding machine	Penrose E. Chapman	St. Louis, MO
1,312,610	Aug. 12, 1919	Variably pitched and actuated bell	Roland Harry Robinson	St. Louis, MO
		Variably pitched and actuated bell	Penrose E. Chapman	St. Louis, MO
1,351,230	Aug. 31, 1920	Armature and coil winding machine	Penrose E. Chapman	St. Louis, MO	Improvements to the inventor's patents 1,121,798 and the not-yet-issued 1,500,181, to lay down the windings in smooth tidy layers rather than randomly.
1,396,728	Nov. 15, 1921	Unreeling and tension device	Penrose E. Chapman	St. Louis, MO	Improvements to the inventor's patents 1,121,798 and the not-yet-issued 1,500,181, to lay down the windings with a uniform tension on the wire, which avoids chattering and injury to the wire's insulating coating.
1,500,181	Jul. 08, 1924	Armature and coil winding machine	Penrose E. Chapman	St. Louis, MO	Improvements to patent 1,121,798; see also patents 1,351,230 and 1,396,728. The improvements in this patent are related to enabling the winding of multi-pole stators, to increase speed of winding, and to create more tightly packed windings.
1,523,630	Jan. 20, 1925	Armature-winding machine	Penrose E. Chapman	St. Louis, MO	Improvements are aimed at winding two coils simultaneously, and by providing means for feeding out the wire to create leads on each coil.
1,541,626	Jun. 09, 1925	Taping machine	Penrose E. Chapman	St. Louis, MO
1,579,808	Apr. 06, 1926	Armature-winding machine	Penrose E. Chapman	St. Louis, MO
1,662,881	Mar. 20, 1928	Armature-winding machine	Penrose E. Chapman	St. Louis, MO
1,682,213	Aug. 28, 1928	Winding and dereeling device	Penrose E. Chapman	St. Louis, MO
1,699,833	Jan. 22, 1929	Picture-projecting apparatus	Penrose E. Chapman	St. Louis, MO
1,759,479	May. 20, 1930	Testing instrument	Penrose E. Chapman	St. Louis, MO
1,763,389	Jun. 10, 1930	Ice-cream spoon	Penrose E. Chapman	St. Louis, MO
1,839,865	Jan. 05, 1932	Liquid-level regulator	Penrose E. Chapman	St. Louis, MO	This invention "has great usefulness in connection with wickless burners which require accurate levels."
1,902,542	Mar. 21, 1933	Testing instrument and regulator	Penrose E. Chapman	St. Louis, MO	Improvements to patent 1,759,479.
1,924,913	Aug. 29, 1933	Growler type testing device	Charles L. Chittenden	New York, NY	See patent 2,622,128 for a subsequent improvement to this patent.
		Growler type testing device	Penrose E. Chapman	St. Louis, MO
2,053,764	Sep. 08, 1936	Winding and coil binding machine	Penrose E. Chapman	St. Louis, MO
2,157,847	May. 09, 1939	Despooler	Penrose E. Chapman	St. Louis, MO
2,186,820	Jan. 09, 1940	Coil winding machine	Penrose E. Chapman	St. Louis, MO
2,224,180	Dec. 10, 1940	Coil binding machine	Penrose E. Chapman	St. Louis, MO
2,242,053	May. 13, 1941	Wire despooling device	Penrose E. Chapman Sr.	St. Louis, MO
2,259,291	Oct. 14, 1941	Traverse mechanism for winding machines	Penrose E. Chapman	St. Louis, MO
2,274,128	Feb. 24, 1942	Wire dereeling	Penrose Embree Chapman Jr.	St. Louis, MO
2,305,515	Dec. 15, 1942	Paper armature slot peg	Penrose E. Chapman	St. Louis, MO
2,320,264	May. 25, 1943	Wire tensioning device	Penrose E. Chapman Sr.	St. Louis, MO
2,595,332	May. 06, 1952	Winding machine	Penrose E. Chapman	St. Louis, MO	Co-inventor P. E. Chapman, Jr., was deceased at the time the patent was issued. Emmeline T. Chapman was administratrix.
		Winding machine	Penrose E. Chapman Jr.	St. Louis, MO
2,622,128	Dec. 16, 1952	Growler type testing device	Penrose E. Chapman	St. Louis, MO	Improvement to the growler of patent 1,924,913 to provide a cam-based fine adjustment.