US931013A - Electric heater. - Google Patents

Description

J, E. MAGOMBER. ELECTRIC HEATER. 'APPLIOA TIOH FILED APB. 24,1909.

Patented Aug. 10, 1909.

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m 0 as as? haven m1 m1 HEEEEE J. E. MACOMBER. ELECTRIC HEATER. APPLICATION FILED APE. 24,1909.

Patented Aug. 10, 1909.

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UNlTED STATES PATENT OFFICE.

JOHN E. MAGOMBER, OF ALBANY, NEW YORK, ASSIGNOR TO CONSOLIDATED CAR HEATING COMPANY, OF ALBANY, NEW YORK, A CORPORATION OF WEST VIRGINIA.

ELECTRIC HEATER. I

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Specification of Letters Patent.

Patented Aug. 10, 1909.

Application filed April 24, 1909. Serial No. 492,089.

To all whom it may concern:

lie it known that I, J'onN E. Macoimnn, a citizen of the United States, residing at Albany, county of Albany, State of New York, have. invented certain new and useful Improvements in Electric .lleaters, the following being a full, clear. and exact. disclosure of one form of my invention which 1 at present deem preferable.

My invention relates to electric heaters, and particularly those adapted for use on electric cars and similar vehicles, although they are not conlined to such use but may be employed whenever it is desired to produce heat by means of an electric current.

The object of my invention is to provide a more simplified construction which is not only less expensive and less diliicult to manufacture, but which also will protect all of the conductors, and especially the leadingin wires so that they cannot come in contact with external parts while at the same time such conductors are made easily accessible so as to tie inspected or adjusted it an occasion requires.

For a detailed description of the present form of my invention, reference may be had to the following specification and to the accompanying drawings forming a part there:

oi', in which Figure l is a side view in elevation, showing one of my improved heaters, parts there of being broken away to show the interior of the construct-ion;-l"ig. 2 is a longitudinal sectional view taken substantially on the line A, A Fig. 1, showing the case of the heater broken away: Fig. 3 is an end view of the heater? Fig. 4 is a perspective view of the end of the heater separated from tin main body of the heater itself and showing the manner of attaching the end casing to the longitudinal casing, and also showing the manncrfof forming the junctionboxes; Fig. 5 is a perspective view of a strap for holding the conduit lior carrying the elec ric conductors or connectors, in position in relation to the casing of the heater; Fig. 6

is a plan view of the end plate of the heater casing proper, and Fig. 7 is a plan view of the plate which forms the casing for the junction box.

Referring to the drawings, the numeral 1 indicates the core, usually of porcelain, which supports the helically coiled wire heatihg conductors 2;:the numeral 3 indicates the thereof through which the connecting bolts 7 pass. The inner end of these bolts connect with the heating coils 3 and their outer ends connect with the conducting wires 8 and are held in position relative thereto by the nuts 9. The stems 3 pass through the plates 10 which form the ends of the heater casing and are held in position relative thereto so that the cores and heating coils are definitely locatcd within the casing, by means of nuts 11.

The plates 10 are provided with laterally extending tongues 13, adapted to pass through slots 1% in the curved back casing 15 of the heater, and these tongues may be bent down at right angles so as to hold the casing in position relative to the end-plates 10. The parts thus described are preferably ZISSOKIL bled in the order mentioned. The plates 10 are also provided with perforated cars 16, by which the heater may be attached to and supported upon the perforated supporting plate 17 of the heater proper, as indicated by the numeral 18 in Figs. 1, 2 and 3. The conduits for the connecting wires are then attached to the back casing 15 by means of straps or clamps 19, shown in Fig. These strapsare provided atone end with notches 20, forming a T -head 21. which may be inserted in a' slot 22. formed in the back casing 15. This slot. extends circumfercntially of said casing, and when the T-head 21 of the strap is inserted therein,-the latter is turned at right angles, thereby locking the end of the strap in position. The opposite end of the strap is secured to the casing by means of a screw or bolt 23. In this manner the conduit 24: is held firmly in position on the end of the heater. The conducting wires 8 having been passed through the conduit 24, their ends are secured to the respective bolts 7. These connecting parts are then covered by a protecting plate 25, shown in Fig. 7, which forms a junction box on the end of thehca-ter. The plate 25 is provided with a recess 26 which engages the conduit 24-, and with two holes 27, through which the ends of the stems or llO The advantages of my improvements will be apparent to one skilled in the art, Witnout' specific enumeration of them.

Having described this form ot ny invention, what I claim and desire to protect by Letters Patent is:

1. In an electric heater, a casing having transverse end plate and an auxiliary plate superposed. thereon and forming a junction box with said end plate and easing.

2. In an electric heater, a longitudinal casing, a transverse end plate, tongue and slot connections between said plate and casing, and an auxiliary plate superposed on said end plate and tornnng therewith a unc tion box.

in an electric heater, a ongitudinal casing, an end plate situated Wihin the same, and an auxiliary plate having a pen tion resting on the end oi said casing and a portion sunk below the same and forming With said end plate a junction box.

at. In an electric heater, a semi-cylindrical longitudinal using, an end plate situated within the same, and an an; liary plate having a part of its margin resting on the central portion or the end of sa' l casing, and the remainder thereol sunh below said end and forming with said end plate a junction box.

5. In an electric heater, semi-cylindrical back plate, a plain front plate, an end plate situated Within the end oi said back plate, and an auxiliary plate superposed on said end plate and forming a junction box therewith. H

6. In an electric heater, a se1ni-cylindrical back plate, a plain front plate, an end plate situated with n the end of said back plate, tongue and slot connections between said end and back plates, and means for rigidly connecting said end and front plates.

7. In an electric heater, a semi-cylindrical back plate, a plain front plate, an end plate situated Within the end of said back plate,

attaching said front plateto said end plate.

8. In an electric heater, a semi-cylindrical casing, astrap engaging the same interior-1y, and a conduit held in position on said plate by said strap.

9. ln an electric heater, a bent back plate,

s so to bring the a stl hp engaging the same interiorly, an end plate situated Within the end said plate, an auxiliary plate hax 'inp,- an edge resting on the end of said bacl: plate adjacent said strap and provided with a recess having a shape corresponding to said strap, suit auxiliary plate raving its opposite edge resting on said end plate.

10. in an electric heater, a longitudinal core, electric heating devices thereon, a "tour extending from said core, a bent longitudinal back plate, an end plate situated Within the end of Said bacl: plate and enga a said stem, and an auxiliary plate superposed on said end plate and held in position on said stein.

11. In an electric heater, a longitudinal core, electric heating devices carried thereon, a stem extending from. suit. core, a semicylindrical back plate, an end plate situated Within said back plate and the end oi through which said stein passes, a nut on said stein for holding said core in position, anauxiliary plate superposed on said end plate and tl'lrough which said stein passes, and a second out on said stein for holding said auxiliary plate in position thereon.

12. in an electric'heater, a longitudinal core olcctric heating devices carried thereon, a stein exteniling from said core, a sen: cylindrical back plate, an end plate situated within the end of said back plate and through which said stein a nut on said stein for holding said. core in position, an auxiliary plate superposed on said end plate and having one ei'lg'e resting on the end of said back plate, a conduit passing through said auxiliary plate and attached to said back plate, said auxiliary plate having one edge resting on said end plate and a nut on said stein for holding said auxiliary plate in position.

13. in an electric heater,. a casing; containing heating coils, a plate" external to said casing forming with the end plate of the casing a unct on box, an insulated term nal entering l unction box from the casing, and an ext rnal conduit for the leading-in wire entering said junction. box andsecured to the casing independently of said external plate.

let. in an electric heater, a casing contain ing two heating coils, a junction atone end of said car-m o. aconduitentering said junction box but secured to the casing independently of said box and two Wires pa sing through said conduit into the unction box and there connected respectively to the two insulated terminals of the coils.

15. In an electric heater, a casing containin;;- heating coi an external. detachable plate liorminpw ith the end plate of the cas ingr a junction box, a conduit entering" said box and secured to the casing independently of said external plate, and an insulated coililiary end plate forming a junction box, a

In witness whereof I have hereunto set my hand, before two subscribing Witnesses, this 10 15th day of April, 1909.

JOHN E. MACOMBER.

terminal in said box adapted to receive a leading-in wire in said conduit.

16. In an electric heater the combination with a casing, an end plate thereon, an auX- Y. heater c011 1n the casing and a supporting ltnessesz rod for the heater extending through both C. C. NUcnoLs, end plates and securing the same. JAMES F, MoELRoY.

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