US1287323A - Electric heater. - Google Patents

Description

A. R; HUNTENGQON.

ELECTRVS HEATER. APPUCAHON FILED MR. 21. ms.

Eatented 396.10, 1918 2 SHEETS-SHEE A, R. HUNTINGTON.

ELECTRIC HEATER.

APPLICATION FILED MAIL ZI. ISIS.

I Patented Dec. 10, 1918.

2 SIEzTS-SHEET 2 0 5/ .mpmuww I 2 I do JV unirnn STATES PATENT orrrae,

EICHAE'D G. MANIFOLD AND ONE-THIR SIDE, CALIFORZQ'IA.

ELECTRIC Application filed March 21,

T 0 all whom it may concern:

Be it known that I, Annual) IlUNTINtr TON, a subject of Great Britain, residing at Riverside, in the county of Riverside and State of California, have invented new and useful Improvements in Electric Heaters, of which the following is a. specification.

This invention relates to improvements in electric heaters, and the primary object thereof is to provide a simply constructed, comparatively small, inexpensive, compact, durable, and highly etlicient electric heater, which is attractive, and ornamental in appearance and capable of expeditiously prolucing relatively greater ieat at less fuel consumption, as compared to heaters of the present-day type. v p I An objector": the invention is to provide in a heater of the above-mentioned character, a.- reflectbr or radiator of such shape and construction that heat produced by a heating element associated with therrellector Will be caused to rad ate from the reflector in substantially parallel lines, such parallel and out-Ward projection of heat being highly desirable and providing for efiective heating of the zone immediately in front 01 the heater.

The invention further consists in the particular combination, inter-relation, relative arrangement, construction, association of the several parts, elements and features of the heater, as illustrated in the accompanying drawings, described in the following specification, and finally pointed out in claims. Qther objects and advantages will appear during the course or" following description.

lnthe drawings:

Figure l. represents a front elevation of a heater constructed in accordance with this invention; p

Fig. 2 represents a vertical sectional new taken on the line r ;n of Fig, 1;

Fig. 3 represents a fragmentary view of .the heating element showing the same in section and the manner of securing the coil to the supporting means therefor;

Fig. 4 represents a fragmentary vertical sectional "iew of a modified form of the invention in which the modification relates to the heating element,

Fig. 5 is a fragmentary front elevation of Specification of Letters Patent.

ALEEED R. HUHTXNGTON, OF RIVERSIDE, CALIFORNIA, ASSIGblOB 0F ONE-THIRD T0 D T0 CHARLES O. POOLE, BOTH 0]? RIVER- HEATER.

Patented Dec. 10, 1918. 1918. SeriaI-No.223,8 3,

the form ofhea'ting element disclosed in Fig.

l showing the same broken awav for the sake of clearness;

6 represents a. vertical fragmentary sectional view of another modified formof the 1nvention as regards the heating element; and

Fig. 7 represents a detail front elevation of the heating element disclosed in Fig. 6.

Referring particularly to the drawings and specifically to Figs. 1, 2 and 3 thereof, the heater shown embodies essentiallv the stand A, a reflector or radiator B pivbt-ally supported for verticaladjustment by the stand A, a heating element C operatively associated with the reflector or radiator B, and a guard or screen member D which extends over the front. of the reflector or radiator B.

The stand A mar be formed of a casting or otherwise produced if desired, and C0111: prises a base 1 having an upwardly and rearwardly curved stander L or post 2, which as shown, is preferably hollow and an integral part of the base, which base is likewise hollow. The upper end of the post or standard 2 is open, enlarged, and shaped to provide a seat 3 for the semi-spherical protuberance or projection 4 of a casing 5, the latter of which is secured in any suitable manner to the back of the radiator or reflector B. 'l he projection at is pivotally connected preferably upon opposite sides as at 6 with the 7 formed upon the standard or base 2, the pivotal con ncctions bein such that the semi-spherical projection will have close frictional engage ment with the seat sutliciently to hold the rcilect-or or" the radiator in adjusted position. The casing -l is shown as circular and. is secured upon the central portion of the reflector or radiator B in such manner that there is provided a dead air space E between the wall or" the reflector and outer wall of the casing 5. Thus it may be said that the refiector is doublebaclced or provided with a false back, and this construction is desirable in order to prevent the parts rcarwardly of the reflector and heating element, from becoming heated to such an extent that there will be an possibility of accidental confisgration.

y The reflector or radiator B is preferably formed of some light metal capable of being highly polished, and which is best calcunames I E and out through alongitudinal slot 29 formed in the projection or protuberance 4, said slot 29 being in communication with the hollow standard 2. The conductors 24- pass through standard 2 and are connected at a point substantially at the base 1 of the standard A, with a socket member 30, which latter is fitted in an opening 31 formed in the stand and projects outwardly from said stand. A contact plug-32 carrying conductors 33' may be inserted into the socket 30 so as to provide for electrical connections between the conductors 38 and 24. By dis' posing the cord attachment means, that is to say, the socket 30, plug 32, and conductors 33 adjacent to thelower end of the base of the stand A, all possibility of conductors 33 becoming an obstacle in a room or apart-.

ment and resulting in tripping persons coming in contact therewith accidentally, is eliminated, and further, the ornamental appearance of the heater as a whole, is enhanced.

The guard member I) is preferably formed of suitably stiff wire strands or rods 34 which may extend over the front of the re fiector B sufiiciently to prevent injury to persons or objects coming into close contact with or falling against the heater or heating element itself, and to avoid the possibility of fire in case of the upsetting of the heating element when in use. These wire strands 34 preferably radiate from the central portion of the-reflector and as shown may be connected by suitable fastening elements as at.

35, with the apex of the cusp 9 or the central portion of the reflector. In this connection it is noted that the cusp or central portion is not formed into a point but may be flattened upon the apex portion thereof. as shown at36. From the center of the refiector these wires or rods 34 are preferably arched outwardly and at their outer ends may be bent around a wire ring 37, said ring being disposed upon the outer face of the flange portion 10, as shown. Thus, the flange acts as a support for the ring and outer extremities of the wires 34. I

In the use of the heater when electrical energy is supplied to the heating coil, heat thereby produced will be radiated from substantially the entire surface of the coil iipin substantially the entire reflecting surface of the reflector B, and the reflection of heat will be in a direction which is substantially horizontal; that is to say, the heat rays will be projected substantially in parallel lines. thus doing away with considerable loss of heat enerqy from convection. This phenomenon is due to the location of the heating element at the focus of the reflector, and the efiiciency in heat reflection or radiation pro- 1 duced is due to the parabolic or substantially parabolic reflecting surface having the central convexity o1- cusp takeum considera- I n u 1 tion with the annular heating element. anq

associated with the reflector F in its disposition in concentric relation with the focus (which is also a circle) of the curve of the reflector. It. has been found that heat rays radlated, projected and reflected by the heater of this invention are peculiarly in tense and directly projected in an extremely expeditious manner and are far-reaching in theirextent of projection and further, that :L maximum heat may be reflected to the point of consumption with a remarkably low wattage consumption of electrical energy. In this connection it will be noted that the wattage consumption can be varied by varying the diameter or" the helix or heating coil, by varying the area of the resistance Wire and by the provision of two or more heating elements. It is to be further noted that the heating element can be replaced readily and easily by removing the two nuts 20 and withdrawing the ring 15 forsupporting the heating coil from the bolts 18 and '19, no skilled labor being required. Likewise, the guard member D may be readily removed by simply withdrawing, the fastening elements As the reflector is pivotally mounted upon the stand A it may betilted into the desired position to reflect or project the heat in the desired direction agement of the stand with the element 4 the reflector will maintain its adjusted position.

Referring particularly to Figs. 4 and 5 wherein there is illustrated a modified form of the invention, F designates a reflector of the same construction as embodied in the preferred form of the invention, and G designates a heating element supported by and the same manner as is the heating element in the preferred form of the invention. The heating element G comprises a supporting means therefor'in the form of an annular ring 38 preferably formed of porcelain. This ring 38 is formed with a peripheral groove39 in its outer face, the outer wall of the groove being higher than the inner wall and serving as a flange 40. This flange 40 acts as a screen relative to the helix or helical coil 41 which is mounted within the groove, and prevents outward radiation of heat from the coil, to the end that heat impinging upon and radiated onto the inner face of the flange &0 will be reflected rearwardly upon the reflector F and thence, projected outwardly from the reflector. It will thus be seen that and through frictional enwith this construction all possibility of loss' of heat energy by convection is removed;

The heating element G is positioned relamuch as the mode of operation, general con-- struction and relative arrangement of ele- Whsrcin thaws is ii'iliscrc-icd 91105 are mcciificd form of the invention designates a reficctoi' idcnizicai in cons'hrlicsion with the scflcctors of the other forms of thc iiivanizicni, said provided with a central cusp K. A heating clemezit L swi'ounds the cusp K and is supported by the rcfiector 5 though tiis insirumcntality oi fiihc baits i4 wiiich hoiis are suppoi'cc in ihc ping i5 ccmied by the i'efiecoor J.

The hcacing cicmcni of this 5cm of thc invention consisissprefcmbiy in a fiat @iii memcs m use.

ring 45% of insulsi-icx; material such as poi. cciam. A hciicai c011 cf resistance (visa or ring passing through tho coils of iiiic hciirso Tbs $316.3 of the coils are sccurcci to the baits by mcans of nuis is; we? chess tend fihrough the 'tcrmincl pcrtions of tiic split l'ifig'a There bs provici ci' s series of clongmbcd openings or slots 49 in the split ring is and these opening, or slats allow for maximum hcsi; radiation and prcvcnis loss of heat radiation, as would be she casc were the ring not provicicd with such openings. This form of the invcntion may 5% morc'siesirabic, subject to cci'taiii wildltions of use, cost of production and rcqliire- The 0 )crssion of this form is the same as shct of toe gix-cfcm'cd :fcrm of the iiivcnticn, smi the present form possesses all the avcniiages cmi cficicixcy of that of the preferred form The foregoing dcs vi'iption c216, accompazcying drawings embody the pi'sici'ied types of the invention, and as K bio not Wish to be limited. to these types ii is to be iiiidcrstcoii that I may make minor changes as to dctaiis'ci construction, size, shcgsc, propcrtions of parts and elements of the invention withoiii cpcri-ing from the true spirit and cccpc thereof, as (icfincci hcrcin and in she scipendcd claims Pisviiig thus oiiscioscd my invcnisimi ciaim and desire 32o sccuvc by Lcttei's Patent:

1. A heater, comprising a reflector having reflecting surface for she most part concave and otherwise providcci with a convex portion, and a heating element disposed substantiziiiy at the focus of sci reflector.

2. A heater, comprising a rcfiscioi? imvifig "a, reflecting surface for the most part concave 22nd otherwise ccntrsiiy' rcviiicd with a ccnvcx portion, a heating eiemci'ib disposeci subsmniisilv ct the farms of said i-eiimt-or, and means for scpp rting ichc rcfic'ccoiz I 3. An electric heater including a reficccor formed with a wncavc. pflfiifin extending" cnmiicfly'cmunci s cciitrci axis sari of such i'asiiisii r outward ii'cm she cxis in any dime tion is saiiismiiticiiy a pcicbcic, and an cm 111118.? heating cicmcnt extending cz c mci the I%fi&3 93?"&31d arranged at the focus thereof in An eicciiic iiecfser including a reflector having a ccn'ti'cii convex por fiioc. surrounded by ciimilciconcave pcrticii which is sub smniisiiy pamicoiicai in scciiozi, and an a miiar heating cicmezit arrangsai: the focus of the concaveportion oft-hc reflector.

5. An electric heater comprising rcficcfor having a cent-mi mm portion surroundc by an annular ccnccvc portion which is substcntiaiiy psraboiicsl in section, a ring cf insulating matcrici' ext-ending mound thc concave pcrtion of the-reflector, an elcctriczil resistance clement supported by the iii and insulated conducting posts exicnding outwardly from the reflector to tho ring and engaging the terminals oi: thc rcsistcncc clement.

6. A. heat-e23 ccmpi'ising a, reflector having a reflecting surface of revolution formed by the rotation of a parabola. with axis parallel, thus forming a concave surface with a central cusp, a heating element ioca-tcci substantiaiiy at the focus of said reflector, and a. guard member cxtsndin over the face of and supportcd by hc IGLGCiLOl. I

"Z". An olcctvlc hcctcr including a reflector having a. cant-mi convex portion surrounded by anaimuiar concave portion which is sub stantiaiiy para'ociicsl iii sc/cxiion. an annular heating siemciis extending around the concave portion of the reflector and arranged concentric with "the convex pci'fiicn fii193'0f, said heating element. being suppol 'sed at s1ibstanticliy the focus cf the concave portion cf the reflector, and. ai'ched guard wires radisting outwardly from the central convex poiticn of the reflector, i

8. An ciccti'ic heater, comprising a. refiector having a reflecting surface provided with :cntmi subsiantiaiiy conical convex portion, am} an snncicr concave portion sur rcunciing, the ccnvcx portion, providing substantially paraboiical curve, and a, heat ing EiQ-Hlifii; concentric with the focus of the curve. v

9. An electric heater, comprising a, refisctcr having a substantially concave reflecting surface, an azmuiar heating cicmcnt l0- catcd in concentric reiiiticn with thc'focus of the curvc cf the reflecting surface, an annular non-comiucting ring upon which the heating; element is mount cd, and means for sugiporting' saici ring, wnnccicd with the re- Sector.

10. An cisctric beaten comprising a res flector having a substantially concavc refleeting surface; an cm'iu-iar heating cicmcnt iocatc'ci in concentric relation with the focus of thc cu'rve of thc i cficcting siirfccc, an annular ncc -coiidiicting' ring 'c'pon which the heating element is mounted, and means for fleeting surface and provided centrally with a convex portion, an annular heating element mounted in concentric relation to the focus of the curve means to with the reflector, and a guard member extending in front of the reflecting surface and of the reflecting surface,

heating element, said guard member being attached to the convex portion at the apex thereof and engaged with the reflector adjacent the outer edge face of the reflector.

12. An electric heater, comprising a reflector having a substantially concave refleeting surface and provided centrally with a convex portion, an annular heating elejent mounted in concentric relation to the i iicus of the curve f the reflecting surface, means to support said element connected with the reflector, and a guard member extending in front of the reflecting surface and heatingelement, said guard member being attached to the convex portion at the apex thereof and engaged with the reflector adjacent the outer edge of the reflecting surface of the reflector; said reflector having a false back providing an air space, a pro ection carried by the false bac a stand for supporting the reflector and having a seat for the projection, and means to plvotally support said element connected.

for the reflector, adapted to :be frictionally engaged by the of the reflecting 'surconnect-the projection with the stand at said seat.

13. An electric heater, com "lsing a re flector, a heating element associated with the reflector, said reflector having a false back providing a d ad air s ace, a semi-spherical projection c ied by t e false back, a stand for the reflector, said stand havin a seat adapted to be frictionally enga e by the pro ection, and means to pivotal connect the projection with the stand at t e seat.

14. An electric heater, comprising a reflector, a heating element associated with the reflector, said reflector having a false back providing a dead air s ace, a semi-spherical projection carried by t e false back, a stand said stand having a seat pro ection, and means to pivotally connect the projection with the stand at the seat; said stand and projection bein hollow, and electric conductors electrical y with the heating element, said electric conductors being mounted within the air space,

rojection arid-hollow'stand, said projection avin an opening therein communicating with t e hollow stand, and means of attachment located near the base of the stand for electrically connecting the conductors with the source of electricity. v

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

ALFRED n. HUNTINGTON.

Witnesses:

HENRY T. H111, J. Sum.

connected

Images