US1756686A - Electric ignition for oil burners - Google Patents

Description

April 29, 1930., A. P. HOLDEN ET AL ELECTRIC IGNITION FOR OIL BURNERS lallullll Patented Apr. 29, 1930 UNITED STATES PATENT OFFICE ARTHUR P. HOLDEN AND PHILIP MORGAN, OF TORONTO, ONTARIO, CANADA ELECTRIC IGNITION FOR OIL BURNERS Application filed March 19, 1926. Serial No. 96,074.

The principal objects of the invention are, to overcome the difficulties met with in conducting the high tension current to the spark terminals, and to produce a simple and eifi cient arrangement of apparatus which will obviate the electrical losses and simplify and cheapen the cost of construction.

The principal feature of the invention consists in the novel construction and arrangement of the spark terminal supports, whereby the said terminals are directly connected with the terminals of the high tension transformer without the use of cable leads.

In the drawings, Figure l is a longitudinal sectional view of an oil burner construction, showing the application of our improved elec- 'trical terminals and transformer arrangement. v

Figure 2 is a plan view showing the transformer box cover removed. v

Figure 3 is-an enlarged perspective detail showing the terminal end connections.

In the practice of'utilizing a high tension current for effecting a jump. spark for igni tion purposes in an oil burner, it has been found very difficult, in fact impossible, to obtain electric cables which will conduct the high tension current from the step-up transformer to the sparking terminals without losses which are highly detrimental to the successful",operation of the device.

This invention proposes a very simple method of overcoming the difficulty which is to support the transformer in direct close relationship to the spark terminals and to connect the said spark terminals directly with the terminals of the transformer. p

In the ap lication herein shown the casing 1 of the urner structure is formed with an offset 2-in the inward end and the atomizing nozzle 3 is arranged in the upper projecting portion and discharges through the orifice in the underside.

The ignition terminals 4 are long metal rods which extend through an opening 5 in the lower portion of the offset end of the casing.

The terminals 4 are enclosed for the major portion of their lengthin porcelain tubes 6 and these tubes are bedded at their outward ends in sockets 7 formed in a porcelain block 8 and are securely cemented in place.

The block 8 is enclosed in a casing 9 which is adjustably supported from the casing 1 and the casing 9 is provided with a suitable cap 10.

Secured to the bottom of the casing 9 is a transformer 11 which steps up the voltage of the electric current to be supplied to the terminals and the terminals 12 of the transformer extend through openings in the casing 9, being suitably insulated and they are preferably directly secured to the outward ends 13 of the sparking terminals 4.

It will be readily understoodthat when the sparking terminals are thus directly connected with the terminals of the transformer there will be no leakage losses or surface tension that will be objectionable, or that will offer any adverse condition to surrounding mechanisms.

What we claim as our invention is 1. In an oil burner, the combinationwith I insulating block and extending beyond said casing, a pair of sparking terminals extending through said insulating tubes and having their forward ends disposed in the path of discharge of said burner nozzle, the rearward ends of said sparking terminals terminating within said casing, and a transformer having its terminals extending into the interior of said casing and directly secured to the rearward ends of said sparking terminals.

3. In an oil burner, the combination with a burner nozzle, of a casing spaced from said nozzle and having an insulatingblock therein, a pair of insulating tubes secured in said insulating block and extending beyond said casing, a pair of sparking terminals extending through said insulating tubes and having their forward ends turned laterally and dis- I posed in the path of discharge of said burner nozzle, the rearward ends of said sparkin terminals terminating in the interior of sai casing, a transformer having its terminals extending into the interior of said casing and drilled to receive the ends of said sparking terminals, and set screws threaded into the transformer terminals and locking said sparking terminals in an adjusted position against circumferential or longitudinal displacement,

4. In an oil burner, the combination with a burner nozzle, of a "c 5; spaced from said nozzle and having an opening in the side adjacent said nozzle, an insulating block inserted in said casing and having spaced bosses extending through said. side opening, said bosses having socket recesses therein, insulating tubes bedded at the ends in said boss sockets and extending toward said nozzle, ignition rods extending through said insulating block andtubes havin I their rearward ends terminating in said casing and their forward ends disposed in the ath of discharge of said nozzle, and a trans ornier having its terminals extending through a wall of said casing in ali 5w 4: ent with the ends of the terminal rods therein and secured directly thereto,

i' 1: P. HQLDEN. PIP MURGAN.

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