Патент USA US2411313код для вставки
NOV» 19, 1946- G. w. ZIMBELMAN ETAL I HEATER Y Filed Dec. 8, 1944 _,„l „ _ __ _ _ __ m __ __ _ -._.,iLWL 2,411,3Í3 2 Sheets-Sheet 1 5+. „„„ _ _j í ¢ ¿tZ6 ." __ Ku _w . ,_ „_úw, m . [MU d .„_ 2. 4j ¿J c_ „? _ \. ak., _ „fmA5 Ú .IC .. 0 w//M.,. la n . a.. « M Patented Nov. 19, 1946 2,411,313 ?UNITED 'STATES PATENT OFFICE Y HEATER George W. Zimbelman and John‘Cherry, Signal Mountain, Tenn., assignors to Samuel Stamping and Enameling Company, Chattanooga, Tenn., , ’ a corporationof Tennessee ' ' " ' " `Application December 8,(Cl. 1944, 12d-‘85) Serial No. 567,215 _ 4 Claims. 1 , The instant invention relates to portable heat 2 ` Il angularly disposed to `an adjacent leg member ers and more particularly to a heater formed of I8 of the wall I3. Similarly wall I5 is cut away sheet metal and preferably utilizingl a gaseous as at iâa forminga leg member I9 angularly dis posed to leg member 2l] of front wall I3. The fuel. One of the primaryobjects of the invention latter is out away as at 2I forming the afore is the construction of a heater of the character aforementioned which is formed of only three sheet metal parts, namely a body or shell of two telescoping members and a burner member. mentioned leg members I8 and 2D thereof and it A Still another purpose of the invention is the section Il but is of greater heighth and width. As in shell section I I, shell section I2 has parallel will be understood that section II has no rear and no bottom wall. formation of a sheet metal heater in which the burner is not centered in the heater but under a curved portion of one ofthe sheet metal mem bers whereby the curved portion acts as a baiiie. Still another aim is the fabrication of a sheet 15 metal heater ofthe type speciñed having struc l, . Shell section I2 is constructed similarly to shell side walls 22 and 23, a rear vertically extending wall 24 terminating in a forwardly curved baille portion 25. Also, each of walls 22 and 23 is cut away as at 22a, 23a, respectively, provided with a leg member 26 and 2l, respectively, while rear tural features in which the heat flow attains a wall 24 is cut away as at 28 similar to opening high velocity with a tendency to spread at a low 2l of the section I I. By reference to Fig. 4 it will level over the floor of the room in which the be seen that the walls 22 and 23 of the section heater is placed. 20 E 2 have an inwardly extending ledge 291 and 3u, Yet another object is the making of a heater respectively. Fig. 4 shows the two sections I I and which is readily stamped from sheet metal, easily I2 in position for assembly, section II being assembled and spot welded together and which is adapted to be telescopically positioned within preferably given a porcelain-enamel ñnish to pro section I2 with the wall I4 of section II in abut tect and embellish the sheet metal members. N) 31 ting parallel relationship inwardly of and with The above and other aims and objects will be wall 22 of section I2 while similarly wall I5 of apparent from the detailed description herein section I I is in abutting parallel relationship in after appearing when taken in conjunction with wardly of and with wall 23 of section I2. When the appended drawings forming a part hereof thus assembled the sheet metal sections or shells and in which 30 II and I2 may be spot welded together inwardly Figure 1 is a front elevational view 0f the com and outwardly along substantially lines 3I and pleted heater and showing the burner member in 32, see Figs. 2 and 3. dotted lines; The burner member is shown in Figs. 51, 6 and 'l Figure 2 is a side elevational view of the heater and comprises a sheet metal stamping designated of Figure l; . Figure 3 is a sectional view taken on line 3-3 of Figure 1; Figure 4 is a perspective View showing the rela tionship of the two heater shells or sections prior to the telescoping and uniting thereof; Figure 5 is a plan View of the burner blank; 35 in its initial form generally as 4U. It is essen tially a sheet or metal plate formed with similar raised portions 4I, 42 and other similar raised portions 43 and 44 all symmetrically disposed about the longitudinal axis of the stamping. A 40 second step in the formation of the burner mem ber comprises perforating the adjacent raised Figure 6 is a side elevational View of the blank of Figure 5 after same has been bent to shape and portions 43 and 44 to provide, a series of spaced ports 45 and 4B. The next step comprises bend provided with attaching lugs; and ing the stamping 4I) along its longitudinal axis, Figure 7 is a sectional View taken on line 'l-l 45 the completed burner being shown in Fig'. 6. The of Figure 5. abutting edges of the burner are preferably united Referring ñrst to Figs. l to 4, inclusive, the by spot welding as- 46a, and elsewhere and the op reference character I0 designates the heater as posed ends are provided with lugs 4l, 48 spot a whole, which it will be seen is formed of two Shell I I comprises a front wall I3, parallel side walls I4 and I5, the front wall I3 extending vertically ' sections or sheet metal shells II and I2. and terminating at its upper end in a curved welded thereto. The burner is now ready to be positioned within the telescoped united shell sec tions I I and I2. By reference to Figs. 2 and 4 it will be seen that the lugs 4l pass through an opening 48a, in wall I4 of shell member II while baffle portion I6. It will be noted that the wall the annular conduit formed by abutting raised I4 is cut away as at Illa forming a leg member 55 portions 4I and 42 terminating in an outwardly 2,411,313 3 4 flared entrance port 49 is positioned adjacent opening 50 in wall I4, said opening being prefer to be limited in this respect only as may be necessary by the scope of the claims hereto ap ably provided with a conventional valve member 5I adapted to receive gas hose 52 provided With a conventional controlling valve 53. Lugs 41, pended. after being inserted through opening 48a are re versely bent as will be seen in Fig. 2 of the draw ings. Similarly, lugs 43 are positioned in wall I5 of section II. Finally, side wall member I4 may be provided with a small aperture 54 for igniting the gaseous fuel. It will now be understood that upon ignition of the gaseous fuel issuing from the ports 45, 46, the heat ño‘w will be directed against curved por tion or baiile I6 of front Wall I3 of the heater I0 and then deflected toward rear wall 24 of the heater.. Convection currents are created by air entering through cut-away portions 54a, E50., 2l, What is claimed and desired to be secured by Letters Patent is: 1. A heater having a hollow body portion, said portion comprising a pair of sheet metal sections one of which is of less height and width than the other section, the smaller of said sections in cluding a front Wall, parallel side walls and an open rear portion, said front wall terminating in a rearwardly curved baille portion, the larger of said sections including a rear Wall, parallel side walls and an open front portion, said last mentioned rear Wall terminating in a forwardly curved baffle portion, an open rear portion of the smaller section being "telescopically positioned within the open front portion of the larger sec 22a, 23a and 28 of the shell sections I I and I2 and tion, said sections being united to each other and serve to direct the heat ñow against the bafñe 25 20 having 'a burner mounted therewithin. which projects it with a high velocity forwardly 2. The structure of claim l, said burner mem into the room where- the heat is spread at a low ber being positioned Within said smaller section level adjacent the floor. below the baflie portion thereof. The surface of heater I0, as well as the burner 3. The structure of claim 1, each of said par member, is preferably coated with a porcelain 25 allel side walls of both of said sections havingv a enamel so that the sheet metal is protected and cut-away portion adjacent the lower edge there the final product has an attractive finished ap of, said burner having lugs, >said lugs being se pearance. cured to the side Walls of the smaller section From the above it will be seen that there has above its cut-away portions and below its baffle been produced a burner Well adapted to perform 30 portion. its intended functions. It is formed of veryv few 4. The structure of claim 1, the parallel side and simple parts; may be manufactured at low walls of said larger section having opposed in cost and has proved to be eñ‘icient in use. Vari ous changes in the specific details shown and de scribed will be apparent to those skilled in the 35 art and it is contemplated to cover all such and Wardly extending ledges for partially support ing said smaller section. GEORGE W. ZIMBELMAN. ‘ JOHN CHERRY.