US873317A - Electric heater. - Google Patents

Electric heater. Download PDF

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Publication number
US873317A
US873317A US36474807A US1907364748A US873317A US 873317 A US873317 A US 873317A US 36474807 A US36474807 A US 36474807A US 1907364748 A US1907364748 A US 1907364748A US 873317 A US873317 A US 873317A
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United States
Prior art keywords
electric heater
heater
elements
resistance wire
boards
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Expired - Lifetime
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US36474807A
Inventor
Moise Landry
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Individual
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Priority to US36474807A priority Critical patent/US873317A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/0611—Roasters; Grills; Sandwich grills the food being cooked between two heating plates, e.g. waffle-irons

Definitions

  • a further object is to provide a device of this character which is inexpensive to manufacture and simple in operation.
  • Figure l is a plan view of the invention.
  • Fig. 2 is a side view.
  • Fig. 3 is a view showing the heater open and EigA isa longitudinal sectional view.
  • a and B indicate a pair of heating elements. These elements each comprise a board l of thin wood veneer covered by sheet asbestos 2 cemented, tacked or otherwise secured to the board. These heating elements are hinged together each along one of its longitudinal edges by hinges 3 which, when the elements lie one upon the other, do not project beyond the device. The purpose of this is to prevent one being injured.
  • a resistance wire ⁇ 5 Secured tothe inner face of one of the elements, is a resistance wire ⁇ 5 which is bent into coils extending longitudinally of the heater. l Any suitable means may be employed for securing the wire in place.
  • the two ends of the resistance wire are secured to small binding posts.
  • the binding posts are each forrned by providing two washers 6 and 7 one on each side of the board, and connecting the washers by an internally and externally threaded insulating sleeve 8, a brass bolt 9, serving to hold-the ends of. thev current wire l0 into contact with the end of the resistance wire, both wires being twisted.
  • the veneer being very thin, conducts the heat from the resistance wire and the asbestos prevents any. danger from iire by preventing the heater becoming too hot.
  • the binding posts being arranged between the elements, prevent one from receiving shocks by unconsciously placing a foot upon them while sleeping.
  • the current wires 10, are providedwith a socket plug 1,1 so that the heater may be carried from place to place.
  • a portable electric heater comprising two vwood veneer boards covered with asbestos and hinged together, fastening devices ⁇ for securing the boards together, a resistance wire between the boards, binding posts arranged between the .boards comprising washers disposed upon opposite faces of the boards and internally and externally threaded insulating sleeve, extending through the board and the washers, and a thumb bolt engaging the internal thread and serving to hold the ends of the current wire, while the lower washers serve to hold the resistance wire as and for the purpose specified.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Central Heating Systems (AREA)

Description

No. 873,317. PATENTED DB0. 1o, 19o?.
lvgmAmRY., ELECTRIC HEATER.
APPLICATION FILED MAR. 2^?,` 1907.
2 SHEETS-SHEET 1.
g1/wanton -M.VLANDRY. ELECTRIC HEATER.
APPLICATION FILED 11113.27, 1997.
PATENTBD DEG. l0, 1907.
l Witwe/bua www@ Morse LANDRY, or MERCED, CALIFORNIA.
ELECTRIC HEATER.
Speccation of Letters Patent.
Patented Dec. 10, 1907.
Application filed March 27. 1907. Serial No. 364,748.
To all whom it may concern.'
Be it known that I, MolsE LANDRY, a citizen of Canada, residing at Merced, in the county of Merced and State of California, have invented a new and useful Electric lfleater; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same.
'lf his invention relates to electric heaters.
It has i'or an object to provide an electric heater which is portable and which is adapted to be used as a foot warmer in a bed, an electric automobile or the like.
A further object is to provide a device of this character which is inexpensive to manufacture and simple in operation.
W ith these and other objects in view the invention consists of the parts and combination of parts, hereinafter described, more particularly pointed out in the appended claims and shown in the accompanying' drawings.
Figure l is a plan view of the invention. Fig. 2 is a side view. Fig. 3 is a view showing the heater open and EigA isa longitudinal sectional view.
VReferring more particularly to the drawings, A and B indicate a pair of heating elements. These elements each comprise a board l of thin wood veneer covered by sheet asbestos 2 cemented, tacked or otherwise secured to the board. These heating elements are hinged together each along one of its longitudinal edges by hinges 3 which, when the elements lie one upon the other, do not project beyond the device. The purpose of this is to prevent one being injured.
by the l'iinges when it is used in bed as a foot warmer. The elements are secured in their iold ed position by fastenings 4 which also do not project beyond the heater.
Secured tothe inner face of one of the elements, is a resistance wire `5 which is bent into coils extending longitudinally of the heater. l Any suitable means may be employed for securing the wire in place. The two ends of the resistance wire are secured to small binding posts. AThe binding posts are each forrned by providing two washers 6 and 7 one on each side of the board, and connecting the washers by an internally and externally threaded insulating sleeve 8, a brass bolt 9, serving to hold-the ends of. thev current wire l0 into contact with the end of the resistance wire, both wires being twisted.
The veneer being very thin, conducts the heat from the resistance wire and the asbestos prevents any. danger from iire by preventing the heater becoming too hot. The binding posts being arranged between the elements, prevent one from receiving shocks by unconsciously placing a foot upon them while sleeping.
The current wires 10, are providedwith a socket plug 1,1 so that the heater may be carried from place to place.
Having thus described my invention, what I claim and desire to secure by Letters-Patent is:
A portable electric heater, comprising two vwood veneer boards covered with asbestos and hinged together, fastening devices `for securing the boards together, a resistance wire between the boards, binding posts arranged between the .boards comprising washers disposed upon opposite faces of the boards and internally and externally threaded insulating sleeve, extending through the board and the washers, and a thumb bolt engaging the internal thread and serving to hold the ends of the current wire, while the lower washers serve to hold the resistance wire as and for the purpose specified.
In testimony whereof I havesigned my name to this speciiication in the presence of two subscribing witnesses.
` MOISE LANDRY. Witnesses:
JOHN R. GRUELL, GEO.' W. BAKKER.
US36474807A 1907-03-27 1907-03-27 Electric heater. Expired - Lifetime US873317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US36474807A US873317A (en) 1907-03-27 1907-03-27 Electric heater.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36474807A US873317A (en) 1907-03-27 1907-03-27 Electric heater.

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US873317A true US873317A (en) 1907-12-10

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US36474807A Expired - Lifetime US873317A (en) 1907-03-27 1907-03-27 Electric heater.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565390A (en) * 1949-12-28 1951-08-21 Mitnowsky David Electric mattress heater
US6654550B1 (en) * 2002-09-12 2003-11-25 Michael Lemanski Portable hand held automobile windshield de-icer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565390A (en) * 1949-12-28 1951-08-21 Mitnowsky David Electric mattress heater
US6654550B1 (en) * 2002-09-12 2003-11-25 Michael Lemanski Portable hand held automobile windshield de-icer
WO2004024516A2 (en) * 2002-09-12 2004-03-25 Michael Lemansky Portable hand held automobile windshield de-icer
WO2004024516A3 (en) * 2002-09-12 2004-06-03 Michael Lemansky Portable hand held automobile windshield de-icer

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