US2165390A - Portable heater - Google Patents

Description

Jul 11, 1939. w, L MKIN' 2,165,390

PORTABLE HEATER Filed July 15, 1937 Patented July 11, 1939 UNITED STATES PATENT OFFICE PORTABLE HEATER William L. Lamkin, P'orterville, Calif. Application July 15, 1937, Serial No. 153,855

1 Claim. (Cl. 4438) This invention relates to an improved portable chamber when the body is standing on its end. heater for use in protecting orchards, vineyards, A metal cover is provided for the top of the gardens and trees from damage by frost. body having 2. depending marginal flange which At present heaters employed to protect orengages over the sides of the body. In Fig. 5

5 chards from damage by frost have consisted of the square type of heater is shown, while in metallic receptacles for holding the combustible Fig. 6 the circular type is shown, the body 26 of material to be burned and are objectionable bethe circular type being of the same construction cause of the large number which must be used as the square type except for its outer configurato protect an orchard of large ocrea'ge and the tion. A modified type of cover II is shown in 10 cost of the labor which must necessarily be em-' Fig.6 which includes the provision of transverse 1O ployed to maintain the receptacles in proper ribs I 2 arranged in crossed relation beneath the working condition. cover and connected to the depending flange of It is an object of the present invention to pro-. the cover. The ribs l2 serve to support the cover vide a heater which is constructed wholly of a on the upper edge of the body in raised relation combustible material pressed or molded into a thereto to allow for a draft beneath the cover. 15

shape which will insure its ready burning fora In use, the chamber 24 of the heaters is filled pre-determined time, thus eliminating the need with kindling of a type which will produce an of using metal containers. intense heat to readily ignite the body of the Other objects and advantages of the invention heater which will burn until the entire body has will be apparent during the course of the followbeen consumed. To prolong the burning of the 20 ing description. heater briquettes may be placed in the chamber In the accompanying drawing, forming a part 24, or the size of the heater may be increased. of this specification and in which like numerals The opening 23 in the bottom of the chamber are employed to designate like parts throughout and the vents 2| in the walls of the chamber 25 the sameprovide sufficient draft to insure burning of the 25 Fig. 1 is a top plan View of the heater, entire heater and the metal cover protects the Fig. 2 is a vertical sectional view of the same, heater'from rain. Thus, it is seen I have pro- Fig. 3 is'a side elevation of the heater, vided a heater which is inexpensive to construct Fig. 4 is a bottom plan view of the same, and which is entirely consumed by burning, Fig. 5 is a perspective view of the heater with eliminating the necessity of maintaing recep- 3 the cover removed, and, tacles.

Fig. 6 is a perspective view of a slightly dif- It is to be understood that the form of my ferent form of heater with the cover partly in invention herein shown and described is to be section. taken as a preferred example of the same and that In the drawing, wherein for the purpose of certain changes in the shape, size and arrange- 5 illustration, I have shown a preferred embodiment of the parts may be made without department of my invention, the numeral 20 denotes ing from the spirit of the invention or the scope the body of the heater which is wholly constructed 7 of the subj oined claim. of combustible material such as coal dust and a Having thus described my invention, I claim:

40 suitable binder or other materials employed in A heater of the type described comprising an 40 the manufacture of briquettes. The combustible elongated upright body of molded combustible material is pressed or molded to form a body of material, said body having a central longitudinal square or circular shape in cross section having chamber of inverted frustro-conical shape open a frustro-conical chamber or. recess 24 arranged at the top, adapted to receive kindling, the side centrally and longitudinally of the body and the walls of said body having a series of vents there- 45 walls of the chamber have a series of vents 2| through communicating with the chamber and extending transversely therethrough- The botthe bottom wall having a central vent extending tom of the chamber 24 is provided with a central therethrough, and a channelextending across the draft opening 23 which communicates with the bottom of said body open at its ends and interchannel 22 extending across the bottom of the secting the vent in the bottom wall. 50

body which permits air to enter the bottom of the WILLIAM L. LAMKIN.

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