US2150687A - Automatic igniter - Google Patents

Description

March 14, 1939. A P K NO ICH 2,150,687 1 I AUTOMATIC IGNITER Filed May 25, 1937 4 Sheets-Sheet l Inventor Adam P Kunowb'c/i Aiiornggs March 1939- A. P KUNOWICH AUTOMATIC IGNITER Filed May 25, 1937 4 Sheets-Sheet 2 W W M M M Inventor A dam P Kzpnowz'ch By @Mm Afforne us March 14, 1939- A. P. kUNOWlCH AUTOMATIC IGNITER Filed May 25, 1937 4 Sheets-Sheet 5 l Inventor *0 Adam P Kurvowa'ch/ pmm Attorneys March 14, 1939. v KUNOWICH AUTOMATIC IGNITER FiledMay 25, 1957 4 Sheets-Sheet 4 Inventor Adam PKonawz'ch Aiforneus Patented Mar. 14, 1939 UNITED STATES PATENT OFFICE 3 Claims.

This invention appertains to new and useful improvements in fire starters for ranges and more particularly to an automatic igniter whereby fires can be started in ranges and in other forms of stoves.

The principal object of the present invention is to provide an igniter of the character stated which can be set to take elfect at some future time, and which in operation is substantially fool-proof and not susceptible to the ready development of defects.

Another important object of the invention is to provide an automatic igniter of the character stated, which is positive acting, and substantially simple in construction.

These and various other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a front elevational View of a range with a portion broken away showing the igniter installed.

Figure 2 is a side elevational View of a range with a portion broken away showing the igniter installed therein.

Figure 3 is a fragmentary side elevational view of the range constructed for the igniter.

Figure 4 is a horizontal sectional View through the rear portion of the range showing in top plan the igniter assembly.

Figure 5 is a fragmentary bottom plan view of the igniter.

Figure 6 is a section on the line 6-6 of Figure 4.

Figure 7 is an enlarged longitudinal sectional View through the carrier for the igniting element.

Figure 8 is a fragmentary enlarged sectional View on the line 88 of Figure 4.

Figure 9 is a fragmentary sectional view on the line 9-9 of Figure 4.

Figure 10 is a fragmentary vertical sectional view of the range.

Figure 11 is a front elevational view of the controller.

Figure 12 is a rear elevational View of the controller.

Figure 13 is a horizontal sectional view through the controller.

Figure 14 is a perspective view of the contactor of the controller.

Referring to the drawings, wherein like numerals designate like parts, it can be seen in the drawings that numeral 5 generally refers to the range in the firebox 6 of which is located the igniter generally referred to by numeral 1. Numeral 8 represents the usual grate structure. This 'end of the range is provided with the door 9 which permits access to the igniter l.

The igniter consists of an elongated plate of heat insulating material generally referred to by numeral III which is provided with a lateral flange I I at its upper end and an inclining flange 12 at its lower portion. The plate [9 with its flanges II and I2 is provided with a metallic jacket l3.

In the bottom side of the flange I2 is securedas by bolts M the plate l5 of insulation to which the elongated U-shaped igniting element I6 is secured by a clamp or the like ll.

A block of insulation [8 is provided on one end of the plate [0 to which connections [9 are made from the cord 20 and which jumper 20 extends to the igniting element [6. This igniting element may be of any conventional design.

It will be observed in Figure 1, that this igniter has the declining flange portion l2 underlying a portion of the grate 8, and of course when inflammable material is placed on the grate 8 and the element l6 ignited, the inflammable material will quickly become ignited.

Numeral 2! generally refers to the controller which consists of the shell 22 having the clockdial 23 at its front side. Numeral 24 represents the clock mechanism case. Observing Figure 13, it can be seen that numeral 25 denotes the winding key for the alarm mechanism of the clock 24, while numeral 26 denotes the hour hand setting shaft which in the present case has the collar 21 secured thereon to turn with the shaft and. from this projects a plurality of fingers 28. The switch mechanism generally referred to by numeral 29 is located on the di-electric block 30 and includes the contactor arm 30 pivotally connected as at 3| to the post 32 and operative against the stationary contact 33. A pin 34 extends through the free end of the contactor 30 and on one end portion is the roller 35 which is prevented from displacement by the collar 36. The other end portion is denoted by numeral 31 and projects beyond the opposite side of the blade 30 and is in the path of one of the fingers 28 when. the said blade 30 is engaged with contact 33.

It can be seen that numeral 38 denotes the time winder, while numeral 39 denotes the usual alarm off and on control.

In the upper portion of the cage 22 is the red lamp 4!) which becomes illuminated when the switch 29 is in closed position, and this light may be seen through opening 41 in front of the cage 22.

It can be seen in Figure 12 that a spiralled spring 42 has its inner end secured to the winding key 25 while its outer end is suitably secured, as by welding as at 43, to the outer convolution of the spring. This forms an eccentric.

It can now be seen, that when the clock mechanism has been set and the alarm goes off, the spring 42 will be carried downwardly so that its outermost convolution will strike the roller and cause the blade 30 to be driven downwardly to engage the contact 33 thus closing an electrical circuit including the igniter l6. At the same time, the pin 31 is brought down to a position to be in the path of one of the fingers 2B projecting from the collar 21 on the hour hand setting shaft 26. As this shaft 26 rotates it will strike the pin end 31 and open the switch 30 after the switch has been closed for a suitable length of time. Thus the igniter is energized for starting the fire in the firebox 6 and then automatically deenergized.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size, and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having thus described the invention, what is claimed as new is:

1. An igniter of the character described comprising a vertically disposed plate of heat refractory material, a bracket, an adjustable connection between the upper edge of the plate and the bracket, a flange at the lower edge of the plate, and an igniting element secured to the bottom of said lower flange, said adjustable connection comprising a plurality of fastening elements, said flange at the upper edge of the plate formed with transverse slots through which and the bracket the securing elements are disposed.

2. An igniter of the character described comprising a vertically disposed plate of heat refractory material, a bracket, a connection between the upper edge of the plate and the bracket, a flange at the lower edge of the plate, and an igniting element secured to the bottom of said lower flange, said plate and its flanges being provided with a metallic encasement and a strip of insulation between the encasement at the lower flange and the said igniting element.

3. An igniter of the class described comprising a vertically disposed plate of heat refractory material, a flange at the lower edge of the plate, a metallic casing enclosing the plate, a strip of insulation on one face of the flange, a U-shaped igniting element fastened to the strip and conductors connected with the ends of the legs of the U-shaped element.

ADAM P. KUNOWICH.

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