US1419330A - Electric heater - Google Patents

Electric heater Download PDF

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Publication number
US1419330A
US1419330A US523445A US52344521A US1419330A US 1419330 A US1419330 A US 1419330A US 523445 A US523445 A US 523445A US 52344521 A US52344521 A US 52344521A US 1419330 A US1419330 A US 1419330A
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United States
Prior art keywords
strips
spiders
electric heater
bolt
base
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Expired - Lifetime
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US523445A
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Frank G Van Dyke
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Individual
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00Air heaters
    • F24H3/002Air heaters using electric energy supply

Definitions

  • Patented J 11116 13 UNITED STATES FRANK G. VAN DYKE, OF DETROIT, MICHIGAN.
  • This invention relates to electric heaters, especially to those which are intended for heating rooms of dwellings and offices where only a moderate amount of heat is required, and its object is to provide a construction of this character which can be produced at low cost, which will be compact, which will have long life, and which can be easily repaired.
  • This invention consists in an electric heater comprising a base, top and shell. a series of upright supporting strips of nonconducting materials such as asbestos board, spiders to support the upper and lower ends of the supporting strips so as to hold them evenly spaced from each other and from the shell and preferably radiating from a common center, and resistance wire extending around the supporting strips and preferably mounted in notches in the outer edges thereof, the wire being preferably coiled in order to obtain the necessary length.
  • Fig. 1 is a central vertical section of this improved heater, the support for the wire being shown in elevation.
  • Fig. 2 is a plan of the heater with the top removed, the shell being shown in horizontal section.
  • the base 1 and top 2 of this heater are preferably metal stampings, properly perforated to permit free passage of air. as shown in Fig. 2.
  • the shell 3 is of sheet metal and these three parts are secured together with a bolt 4.- having a nut 5 at one end. Legs 6 may be attached to the base, in any desired manner or formed integral therewith.
  • the resistance wire is preferably in the form of a coil 7 mounted in the notches 8 in the upright strips 9 of asbestos board or other heat resistance non-conducting material. Any number of these strips may be used, but I prefer three, arranged radially to Specification of Letters Patent. Patented June 13, 1922.
  • the circuit Wires 15 and 16 extend through the insulating eyelet 17 in the base 1 and one wire connects to the lower end of the resistance wire at a bolt 18 passing through a strip 9.
  • the upper end 19 of the winding is preferably passed through a hole 20 in another strip and is then led down to the hole 22 in a third strip and then to the screw 23 to which the other circuit wire is attached. This positions these straight portions some distance from the coils and avoids the danger of short circuiting.
  • the upper spider 10 may have a notch 24 (Fig. 2), extending out from its central hole 25 to receive the tongue 26 extending down from the top 2, as shown in Fig. 1, which prevents the wire-support from turning on the bolt 4.
  • These spiders are formed with hubs 27 and 28 which engage the top 2 and bottom 1 and thus tend to hold this support firmly in position.
  • I claim 1 In an electric heater, the combination of a top, a base and a shell between them,
  • a bolt connecting thetop and bottom, a pair of spiders mounted on said bolt and having arms, one of said spiders being located adjacent the top and the other adjacent the base, a series of non-conducting strips extending between the spiders and attached to the ends of the arms thereof, said strips having notches in their outer upright edges, resistance wire extending around said strips and fittingin said notches, and conductor wires attached to the ends of the resistance wires.

Description

Patented J 11116 13 UNITED STATES FRANK G. VAN DYKE, OF DETROIT, MICHIGAN.
ELECTRIC HEATER.
Application filed December 19, 1921. Serial No.' 523,445.
To all whom it may concern I Be it known that LFRANK G. VAN DYKE.
a citizen of the United States. and residing at Detroit. in the county of Wayne and State of Michigamhave invented'a new and Improved Electric Heater, of which the following is a specification.
This invention relates to electric heaters, especially to those which are intended for heating rooms of dwellings and offices where only a moderate amount of heat is required, and its object is to provide a construction of this character which can be produced at low cost, which will be compact, which will have long life, and which can be easily repaired.
This invention consists in an electric heater comprising a base, top and shell. a series of upright supporting strips of nonconducting materials such as asbestos board, spiders to support the upper and lower ends of the supporting strips so as to hold them evenly spaced from each other and from the shell and preferably radiating from a common center, and resistance wire extending around the supporting strips and preferably mounted in notches in the outer edges thereof, the wire beingpreferably coiled in order to obtain the necessary length.
It further consists in the details of construction illustrated in the accompanying drawing and particularly pointed out in the claims.
In the drawing, Fig. 1 is a central vertical section of this improved heater, the support for the wire being shown in elevation. Fig. 2 is a plan of the heater with the top removed, the shell being shown in horizontal section. I
Similar reference characters refer to like parts throughout the several views.
The base 1 and top 2 of this heater are preferably metal stampings, properly perforated to permit free passage of air. as shown in Fig. 2. The shell 3 is of sheet metal and these three parts are secured together with a bolt 4.- having a nut 5 at one end. Legs 6 may be attached to the base, in any desired manner or formed integral therewith.
The resistance wire is preferably in the form of a coil 7 mounted in the notches 8 in the upright strips 9 of asbestos board or other heat resistance non-conducting material. Any number of these strips may be used, but I prefer three, arranged radially to Specification of Letters Patent. Patented June 13, 1922.
the bolt 4 and evenly spaced therefrom and from each other. Small sheet metal. spiders 10 and 11 may be employed to support these strips, the centers of the spiders being formed. with holes to receive the bolt 4- and the ends of the arms being formed with cars 13 to which the strips 9 may be attached in any desired manner, eyelets 14 being shown.
The circuit Wires 15 and 16 extend through the insulating eyelet 17 in the base 1 and one wire connects to the lower end of the resistance wire at a bolt 18 passing through a strip 9. The upper end 19 of the winding is preferably passed through a hole 20 in another strip and is then led down to the hole 22 in a third strip and then to the screw 23 to which the other circuit wire is attached. This positions these straight portions some distance from the coils and avoids the danger of short circuiting.
The upper spider 10 may have a notch 24 (Fig. 2), extending out from its central hole 25 to receive the tongue 26 extending down from the top 2, as shown in Fig. 1, which prevents the wire-support from turning on the bolt 4. These spiders are formed with hubs 27 and 28 which engage the top 2 and bottom 1 and thus tend to hold this support firmly in position. Y
The details and proportions of the several parts of this heater may all be changed by those skilled in the art without departing from the spirit of my invention as set forth in the following claims.
I claim 1. In an electric heater, the combination of a top, a base and a shell between them,
a bolt connecting thetop and bottom, a pair of spiders mounted on said bolt and having arms, one of said spiders being located adjacent the top and the other adjacent the base, a series of non-conducting strips extending between the spiders and attached to the ends of the arms thereof, said strips having notches in their outer upright edges, resistance wire extending around said strips and fittingin said notches, and conductor wires attached to the ends of the resistance wires.
2. In an electric heater. the combination of a top, a base and a shell between them, a bolt connecting the top andbottom, a pair of spiders mounted on said bolt and having arms, one of said spiders being located ad jacent the top and the other adjacent the base, a series of non-conducting strips ex tending between the spiders and attached to the ends of the arms thereof, said strips having notches in their outer upright edges, resistance wire extending around said strips and fitting in said notches, and conductor wires attached to the ends of the resistance wires, the upper spider and said top having interengaging parts to prevent the wire support from turning.
3. In an electric heater, the combination of a top, a base and a shell between them, a bolt connecting the top and bottom, a pair of spiders mounted on said bolt and having arms, one of said spiders being located adjaeent the top and the other adjacent the base, a series of non-conducting strips extending between the spiders and attached to the ends of the arms thereof, said strips having notches in their outer upright edges, resistance wire extending around said. strips and fitting in said notches, and conductor wires attached to the ends of the resistance wires, the resistance wire having one end extending through a hole near the top in one strip, then extending down through a hole in a second strip near its inner edge and bottom and then across between strips to the end of a conductor wire.
FRANK G. VAN DYKE.
US523445A 1921-12-19 1921-12-19 Electric heater Expired - Lifetime US1419330A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321456A (en) * 1978-11-14 1982-03-23 Firma Fritz Eichenauer Electrical hot air appliance
US4350872A (en) * 1978-11-14 1982-09-21 Firma Fritz Eichenauer Electrical heating element for fluid media and method for producing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321456A (en) * 1978-11-14 1982-03-23 Firma Fritz Eichenauer Electrical hot air appliance
US4350872A (en) * 1978-11-14 1982-09-21 Firma Fritz Eichenauer Electrical heating element for fluid media and method for producing same

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