US1639938A

US1639938A - Fire-pot construction

Info

Publication number: US1639938A
Application number: US1998A
Authority: US
Inventors: Otto J Groehn; Blaskewitz William
Original assignee: Clayton & Lambert Manufacturing Co
Current assignee: Clayton & Lambert Manufacturing Co
Priority date: 1925-01-12
Filing date: 1925-01-12
Publication date: 1927-08-23
Anticipated expiration: 1944-08-23

Description

1 1,639,938, 1927 o. J. GROEHN ET AL FIRE POT CONSTRUCTION Filed Jan.12. l925 Sheets-Sheet 1 INVENTORS Otta J 6m: k2: William 32451240352 1 ATTORNEYIS:

1927' 0. J. GROEHN ET AL FIRE POT CONSTIEUCTION Filed Jan.12. 1925 2 Sheets-Sheet 2 7 INVENTORS 1m w 5% a w.

Patented Aug. 23, 1927.

UNITED STATES PATENT OFFICE.

oTTo J. enonnn AND WILLIAM BLAsKEw'ITz, or DETROIT, MICHIGAN, Assfenons To oLAYTon &'LA BnnT MANUF CTURING COMPANY, or DETROIT, MICHIGAN, A

CORPORATION OF MICHIGAN.

FIRE-POT CONSTRUCTION;

Application filed January The invention relates to fire pots and refers more particularly to fire pot constructions such as are adapted for plumbers use or where other uses for oil burning devices of this character are desired.

One of the objects of the invention is to provide a fire pot construction which is of simple construction and readily assembled. A further feature includes the provision of a side feed preventing heat conduction from the burner to the fuel tank. Heretofo-re, the feed tubes extended directly upwardly from the tank to the burner often requiringthe feed tube to be made of an expensive material resisting heat conduction. WVith our invention ordinary piping may be employed for the feed tube, the arrangement being such as to avoid heat conduction from the burner to the tank.

A further feature of the invention resides inprovision of an induction chamber having asediment 'trap provided with a clean out plug, the arrangemen-tbeing such that the fuel duringits passage to the burner is kept separate from the sediment instead of passing .elirectlythrough it as is the common construction heretofore; By providing the sediment trap a cheap grade of fuel such as kerosene, or other hydrocarbon, maybe employed and at the same time small jet may be used for the fuel, the sediment trap collecting the foreign matter and carbon deposits of the fuel and preventing clogging of the burner jet. I

it further objectionable feature in the constructions offire pots heretofore resided in the fact that after using the fire pots the residue of unburned fuel-carbonized in the induction chamber and burner due to the combustion chamber heat. WVhen such fire potswere later used the carbonized fuel interfered with the operationof the burner, clogging the same and otherwise preventing ready passage of clean fuel to the bu-rner.-

The present invention avoids such diffic'ulties in that the sediment trap collects any carbonized fuel. i

A further feature of the invention lies in the provision'of a novel handleconstruction for supportingsolderingirons or other tools.

ith these and other objects in-view, the invention resides in the novel features of construction and combination and arrange- 12, 1925. Serial raises.

merits of parts as more fully hereinafter described and claimed. 7

Referring to the drawings I'.'

Figure 2 is a plan view thereof; Figure 3 is a detail fragmentary view showing the handle'construction when employed for lifting purposes; Figure 4 is acorresponding view showing the handle in. another position when employed as a tool support;

Figure 5 is a plan of the induction chamher and burner, and

FigureG is a section' along the line 66 of. Figure 5; the'burner being swung into the plane ofthesection 66 for purpose.

of illustrating the burner in cross section.

In the drawings reference character 10 indicates the tank of a fire pot having the usual filler 10 pump 11 and supporting standard 12 which are secured to the spider.

13 carried by the tanlrlO. The standards 12 removably carry the plate ltwhich in turn carries the shield 15 which is removably secured to the pot supports 16 by reason of the overhanging portions 17 thereof.

Carried by the plate 1% at diametrically opposite sides thereof are the lugs 18 having the reduced bearing portions 19 engageable bythe slots 20 of the handle. 21. The plate lat is also provided with the hook rests 22v which cooperate with the handle 21 to sup port the same in substantially horizontal position as shown in Figure ii: for support-. ing tools while being heated by the burner. -When so used the shield '15. is preferably removed by. giving to ita: partial rotation sufiiciently'toialign the recesses 23. with the supports 16 at which. time the shield 15 may be lifted vertically off the plate 14] The supports-16 may receive a pot (not shown) for meltingleadand the like.

For carrying'the the pot the handle 21 may be positioned vertically as shown in Figure 3. By re'ason'of the slots 20, in this latterposition, the polygonal head 24 enters the correspondingly shaped portions25 of the handle which prevents swinging of the I fire pot relatively. to the handle. To place thehandle in the horizontal position it is only: necessary to allow it to drop vertically sufliciently to free the head- 24 from the portion 25, slots permitting such vertical movement, whereupon the handle may be rotated about the bearing portions 19 into supporting engagement, with the hook rests Extending axially upwardly above the tank 10 is the combustion device comprising the frustoconical combustion mixing chamber 26 preferably having perforations 27 and the induction chamber 28 having the sediment trap 29 normally closed at its lower end with the clean out plug 30 and communicating at a point throughout its length with the fuel feed pipe 31 which extends horizontally away from the induction chamber and is then bent at to extend downwardly into the tank 10. By reason of this construction it will be noted that the feed pipe 31 is positioned to one side and consequently remotely of the combustion chamber and induction chamber. A suitablevalve regulable by handle 32 may control the supply of fuel to the induction chamber. The latter chamber communicates at its upper end with a fuel passage leading to the burner 34 provided with the jet The parts preferably have screw threaded engagement as shown to afford ready taking apart for cleaning purposes. The opening 35 is axially aligned with the combustion chamber 26.

Supported by the spider 18 is a detachable shield 36 which may surround the burner and combustion chamber.

In operation the fuel passes through the feed pipe 31 into the induction chamber 28 where it is vaporized by the heat from the combustion chamber 26. The vaporized fuel passes through the passage 33 and thence through the burner jet 35, leaving behind in the trap 29 any sediment. The fuelfrom jet 25 entrains air and combustion takes place within the chamber 26. After use any carbonization caused in the induction chamber will be collected in the sediment trap 29 which may be cleaned by removal of the plug 80. It will also be noted that the fuel does not pass through the sediment trap but is introduced into the. induction chamber at a point above the trap. Such provisions affording a clean fuel and unobstructed passages therefor result in a more perfect combustion and permit the use of the small burner jet 35. It will also be noted that a convenient tool rest is afforded by the handle slidably engaging the bearings 19 and adapted to be swung'into a horizontal sup ported position. Furthermore, it will be noted that the fire pot may be readily as- SGIIlbiGCl and disassembled.

While it is believed that from the foregoing description, the nature and advantage of our invention will be readily understood, we desire to have it understood that we do not limit ourselves to what is herein shown fuel tank and combustion chamber of a 3,.

vaporizing chamber immediately adjacent the combustion chamber provided with a sediment trap and a fuel feed pipe connecting the tank and vaporizing chamber at a point above the said trap.

3. in a fire pot the combination with a fuel tank and combustion chamber of a vaporizing chamber adjacent the combustion chamber, a burner positioned below the combustion chamber and vaporizing chamber.

a communication between said burner and the upper portion of the vaporizing chamber, a sediment trap formed at the lower portion of the vaporizing chamber and a fuel feed pipe between said tank and vaporizing chamber. 7

l. In a fire pot, the combination with a fuel tank and combustion chamber, of a vertically positioned vaporizing chamber imme diately adjacent the combustion chamber, a burner positioned below the combustion chamber, a communication between said.

burner and theupper portion of the vaporizing chamber, a sediment trap formed at,

the lower portion of the vaporizing chamher, and a fuel feedrpipe between said tank and vaporizing chamber communicating with the latter chamber at a point inter1nediate the length thereof.

5. In a fire pot the combination with a fuel tank and combustion chamber of a vaporizing chamber immediately adjacent the combustion, chamber, a burner positioned below the combustionchamber and the vaporizing chamber, a communication between said burner and the upper portion of" the VELPOIIZIHO chamber, asediment trap.

formed at the lower portion of the vapor izingchamber and a fuel feed pipe between said tank and vaporizing chamber communicating withthe latter chamber at a point intermediate the length thereof, said fuel feed pipe having a horizontally extending portion communicating with the vaporizing chamber.

6. In a fire pot, the combination with a source of fuel. of a combustion chamber, means for feeding fuel from said source of supply to the burner, said means including a chamber for preheating the fuel and a sediment trap in the said chamber for collecting sediment and the like from the fuel.

7. In a fire pot the combination with a source of fuel of a combustion chamber, means for feeding fuel from said supply to the burner including means for preheating the fuel and means'adjacent said preheating means for removing sediment and the like during the preheating of the fuel.

8. In a fire pot, the combination with a fuel tank, combustion chamber and burner, of a combined vaporizing and sediment removing chamber adjacent the combustion chamber, a fuel feed pipe connecting the tank with the vaporizing and sediment removing chamber, and a conduit connecting the said last named chamber with the burner.

9. In a fire pot, the combination with a fuel tank combustion chamber and burner, of a combined vaporizing and sediment removing chamber in contact with but outside of the said combustion chamber, a fuel feed pipe connecting the tank with the said vaporizing and sediment removing chamber and a conduit connecting said last named chamber with the burner.

10. In a fire pot, the combination with a fuel tank and combustion chamber of a combined vaporizing and sediment removing chamber adjacent the combustion chamber and a plug removably mounted in the base of the said vaporizing and sediment removing chamber adapted to be removed for giving access to the same.

11. In a fire pot, the combination with a fuel tank, of a combustion chamber arranged above the fuel tank, a vertically-positioned vaporizing chamber immediately adjacent the combustion chamber, a fuel feed pipe extending upwardly from the fuel tank and provided with a horizontally extending part communicating with the vaporizing chamber at a point intermediate the ends thereof, a removable sediment trap in the lower end of the vaporizing chamber, and a burner below the combustion chamber, the said vaporizing chamber being provided with a relatively thick wall having a passage extending vertically upward from the said burner, second angularly arranged passage for connecting the top of the vaporizing chamber with the said first mentioned passage to permit the passage of fuel from the vaporizing chamber to the said burner.

In testimony whereof we affix our signatures.

OTTO J. GROEHN. WILLIAM BLASKEWITZ.

and a