US1005508A - Heating-stove. - Google Patents

Description

J. A. BUGKWALTER & H. W. KERN.

HEATING STOVE. I APPLICATION FILED SEPT. 12, 1910.

Patented Oct. 10, 1911.

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'ATTORNEY COLUMBIA PLANOGRAPH 60.,WIIIHINGTDN. n. c.

J. A. BUGKWALTBR & H. W. KERN.

HEATING STOVE. v I APPLICATION FILED SEPT. 12, 1910. 0 1,005,508. Patented Oct. 10,1911.

2 SHEETS-SHEET 2.

JABzw/iwaher N Rs /%,,WI W l VENTO WITNESSES %7 W ATTORNEY UNITED STATES PATENT OFFICE.

JOSEPH A. BUCKWAL'IER AND HARRY W. KERN, 0F ROYERSFORD, PENNSYLVANIA, ASSIGNORS T0 BUCKWALTER STOVE COMPANY, OF BOYERSFORD, PENNSYLVANIA,

A. CORPORATION OF PENNSYLVANIA.

HEATING-STOVE.

1,oo5,5os.

To all whom it may concern:

Be it known that we, JOSEPH A. BUCK- WALTER and HARRY 1V. KERN, citizens of the United States, residing at Royersford, in the county of Montgomery and State of Pennsylvania, have invented a new and useful Heating-Stove, of which the following is a specification.

This invention has reference to improvements in heating stoves and its object is to provide a stove of substantially square cross section wherein the necessity of the separate firepot is avoided, this being brought about by having the firepot cast wit-h the side members of the stove and utilizing corner staves for protecting the joints where the members of the stove come together from the effects of the heat of the fire within the firepot. By

forming the staves with passages through them the spaces back of the staves may be utilized as air ducts, whereby air from the ash pit is directed to and over the bed of burning material within the firepol, thus improving the combustion. The corner staves further prevent the escape of burning materials from the firepot should, from any cause, the corner connections of the stove body give way.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming a part of this specification, with the understanding, however, that while the showing of the drawings is that of a practical embodiment of the present invention, various modifications of such structure may be made without in any manner departing from the scope of the invention.

In the drawings :Figure 1 is a vertical central front to back section of a stove constructed in accordance with the present invention. Fig. 2 is a section on the line 22 of Fig. 1. Fig. 3 is a section on the line 33 of Fig. 1 with the grate omitted. Fig. 4 is a cross section of one of the corner staves with adjacent parts of the stove structure. Fig. 5 is a section on the line 55 of Fig. 4. F 6 is a perspective view with the parts separated of a corner of the stove structure coincident with the firepot, the corresponding corner stave being omitted. Fig. 7 is a perspective view of one of the corner staves as seen from the rear and viewed from be- Specification of Letters Patent.

Application filed September 12, 1910.

Patented Oct. 10, 1911- Serial No. 581,559.

low. Fig. 8 is a perspective view of the upper end of one of the corner staves as seen from above.

Referring to the drawings, there is shown a stove body composed of four members 1, 2. 3 and 4, the member 1 constituting the front of the stove, the member 2 the back of the stove, and the members 3 and 4 the side members of the stove. The general effect of these four members when joined is that of a square stove, but each member is formed with a swell 5, whereby the stove has also the appearance of a cylindrical or drum stove. The margins of the members 1 and 2 of the stove body are rounded, as indicated at 6, and have formed thereon adjacent to the rounded portions ribs 7 The corresponding portions of the members 3 and 4 have rounded marginal portions 8 and ribs 9, like those of the front and back members, but the members are so formed that the rounded portions 8 fit into the rounded portions 7 with the ribs 9 and the edges of the rounded portions 6 abutting. Projecting from the edges of the rounded portions 8 are recessed ears 10, while formed on the corre sponding portions of the inner faces of the front and back members 2 are bosses 11, each with a shoulder 12, the ears l0 engaging these bosses, and each boss is provided with a passage 18 for a bolt 14, so that thefront and back members may be joined to the side members by an appropriate number of bolts 14, and the four stove members may be assembled into a rigid stove structure, it being customary to lute the joints against the escape of gases.

The front and back and side members of the stove body are so shaped that when assembled there is formed a substantially square ashpit 15, an inverted frusto-conical firepot 16, and a substantially cylindrical combustion and radiating chamber'lY, the firepot 16 being corrugated as shown at 18 for strength and increased radiating surface. Where the corrugated portions of the front, back and side members merge into the corner portions there is formed a longitudinal undercut shoulder 19 constituting a terminal edge of a fire pot section, the mating shoulders or terminal edges 19 of two adjacent fire pot sections diverging from the upper end downward. Seated against matching shoulders 19 are the beveled edges 20 of a corner stave 21 which stave is comparatively narrow at the upper end and wide at the lower end, considering the stave as in position in the firepot, and said stave constitutes a continuation of the inner walls of the firepot, separating the firepot chamber from the joining portions of the members of the stove body and forming between the stave and the inner walls of the members of the stove body where joined a chamber 22, of substantially triangular cross section, which, because of the inclination of the stave with relation to the junction parts of the stove body members, is of greater size at the lower end adjacent the ashpit than at the upper end corresponding to the upper end of the firepot. At the upper or narrow end each stave is formed with a ledge 23 constituting a cover member for the chamber 22, while at the lower edge each stave is formed with lugs 24 of sufficient length to engage the corresponding inner wall of a body member of the stove, and each lug 2 L rests on a corresponding lug 25 formed on the inner wall of that portion of the stove body member extending from the shoulder 19 toward the junction point of two adjacent body members. The lugs 2d are joined by a web 26 of less extent from the corresponding face of the stave than are the lugs 25%, and beneath this web and underneath a portion of the lugs 24: is a thickened portion 27 of the web and lugs serving to reinforce the stave at this point, and also abutting against the ledges 25. The structure is such that each stave has its beveled edges in engagement with the undercut portions of the shoulders 19 and the curvature of the stave is such that it conforms generally to the curvature of the firepot, which latter is of inverted frusto-conical form.

While it is not at all times necessary, still it is preferred that openings be formed through each stave 21, and in the particular showing of the drawings, each stave is formed with numerous passages or perforations 28, so that there is free communication between each chamber 22 and the interior of the firepot.

On the several members of the stove body, except the front member 1, there are formed lugs 29 below the firepot portion, and on these lugs there rests a grate 30 shown as of circular form, each lug 29 being formed with a boss 31 maintaining the grate in position and permitting it to turn about the longitudinal central axis of the assembled stove. In the particular showing of the drawings, the grate is formed with a central square opening normally closed by a square grate section 32, mounted to slide across this opening, and this sliding member is provided with a manipulating stem 33 ex tending through the front member 1 of the stove body to the exterior thereof. The

presence of the stem 33 prevents the employment of a supporting lug 29 for the grate and a corresponding positioning boss 31. To prevent movement of the grate toward the front member 1, the grate is provided with lugs 3 1 bearing against corresponding portions of the lower ends of those staves 21 in the path of these lugs. By this construction the grate is supported in place and may be rocked about the longitudinal central axis of the stove body and the central portion 32 of the grate may be withdrawn from covering relation to the opening through the grate, so that the contents of the firepot may be allowed to gravitate into the ashpit whenever desired, while the ashes of sufficient fineness to pass through the grate may be dislodged from the firepot by the rocking movement of the grate on its supports.

The ashpit is provided with a door 35 with the usual draft slide 36, and the firepot is provided with a clinker door 37, as is customary, while the combustion chamber 17 is provided with a door 38 for the introduction of fuel and this door may have a draft damper 39 of usual form.

The upper end of the stove is closed by a cover member 10 having therethrough an opening surrounded as usual by a marginal ledge 4E1 for retaining the lid 4:1, and covering this lid is a crown member 4L2 which may be made readily removable for access to the lid, and serves as an ornamental finish. The top member a0 is also provided with the usual stove pipe flange 43.

In order that the ashpit may be elevated above the floor on which the stove is placed, suitable legs 44 are provided.

The ashpit has a bottom member 15 secured thereto by bolts 16, but no particular description is needed of either the top or bottom members of the stove since the con struction of these members may follow the usual practice, and such ornamental additions may be made to the stove as the esthetic tastes of the designer may dictate.

It is customary in constructing heating stoves of general square shape to introduce therein separate firepots because of the square shape of the stove body, but by the use of the corner staves 21, the firepot may be in the main cast in sections integral with the corresponding parts of the stove body, the general square shape of the stove body being maintained, and the junction parts of the members of the stove body being continuous and straight throughout the length of the stove body, thus facilitating the assembling of the stove and eliminating unequal contraction and expansion and the liability of distortion therefrom. The staves 21 not only serve to complete the firepot but avoid the necessity of forming joints in the firepot walls with fastening means joining the parts together, these staves being simply slipped into place and need notbe so tight as to put the parts under strain tending to distort the stove members. At the same time the fastening devices are exterior to the firepot and are sufiiciently separated from the walls of the firepot to greatly reduce, if not entirely eliminate any liability of injury to the fastening devices, because of the intense heat within the firepot when the fire is burning. Furthermore, the chambers 22 opening at the lower ends into the ashpit form protecting chambers shielding the fastening means for the members of the stove and the joints between the members of the stove from injury due to the heat of the fire. VJhen the perforated staves are used, air currents from the ashpit will flow through the chambers 22 and into the firepot through the perforations in the staves, thus bringing unburned air into the fire chamber coincident with and above the bed of burning material, thereby greatly facilitating combustion. Any fine ashes which may pass through the perforations 28 will fall into the ashpit through the lower open ends of the chambers 22 and should from any cause the joints between the body members of the stove open where coincident with the fire chamber, the staves 21 will prevent escape of any burning material through the open joints, for any burning material which might pass through the staves will at once gravitate to the ashpit instead of finding its way outside of the stove to thereby produce dangerous conditions. Also, these corner staves are conducive of cleanliness, since any ashes which might escape from the firepot and to the exterior of the stove were the staves absent and the joints of the stove members become open from any cause, are constrained by these corner staves to drop into the ashpit.

hat is claimed is 1. A heating stove formed of sections joined together at their meeting points, each section including a corresponding portion of the fire pot of the stove, which fire pot section terminates in shoulders mating but spaced from corresponding shoulders on the adjacent fire pot sections, and separate members adapted to fill the space between the mating shoulders of the fire pot sections to thereby complete the walls of the fire pot and constituting separators between the in terior of the fire pot and the joints of the stove body exterior to the fire pot.

2. A heating stove of substantially square form composed of four members coupled together at the corners, each member having formed thereon a segmental section of a fire pot for the stove, said fire pot being of substantially inverted frusto-conical form, and the segmental portions terminating in shoulders mating and spaced from corresponding shoulders of the adjacent fire pot sections, and separate members shaped to conform with the general shape of the fire pot and constituting completing continuations 'of the wall of the fire pot between the mating shoulders of the segmental portions thereof and in spaced relation to the junction points of the side members of the stove body where coincident with the fire pot.

3. A heating stove of substantially square form composed of four members coupled together at the corners, each member having formed thereon a segmental section of a fire pot for the stove, said fire pot being of substantially inverted frusto-conical form, and the segmental portions terminating in shoulders mating and spaced from corresponding shoulders on the adjacent fire pot sections, and separate members shaped to conform with the general shape of the fire pot and constituting completing continuations of the wall of the fire pot between the mating shoulders of the segmental portions thereof and in spaced relation to the junction points of the side members of the stove body where coincident with the fire pot, each of said separate filling in members being provided at one end with a projecting portion forming a closure for the space between said separate members and the corresponding junction portions of the side members of the stove body and also being provided with passages leading to the interior of the fire pot.

4. A heating stove formed of a plurality of members extending lengthwise of the stove and joined together at their meeting edges, each member'having formed integral therewith the corresponding section of a fire pot each with terminal edges mating and spaced from like edges of the next ad jaccnt fire pot section, and the junction portions of said members being out of line with and exterior to the fire pot, and other members adapted to complete the walls of the fire pot between the mating terminal edges of the sections thereof and conforming to the contour of the interior of the fire pot, said completing members having passages therethrough leading to the interior of the fire pot and together with the junction portions of the first named members defining air passages at the junction points of the stove, which air passages discharge into the interior of the fire pot.

5. A heating stove provided with a firepot and an ashpit below the same, said stove being composed of front, back and side longitudinal members joined together at the meeting points, said stove members having formed integral therewith corresponding portions of the firepot of the stove, the adj acentedges of the portions of the firepot on the several members being in spaced relation, and separate members each lodged be- &

tween the adjacent edges of two fire pot portions and constituting continuations of the firepot walls and completing the latter, said separate members being in spaced relation to the joining portions of the main stove members where coincident with the firepot.

6. A heating stove provided with a firepot and an ashpit below the same, said stove being composed of front, back and side longitudinal members joined together at the meeting points, said stove members having formed thereon corresponding portions of the firepot of the stove, the adjacent edges of the portions of the firepot on the several members being in spaced relation, and perforated separate members constituting continuations of the firepot walls and completing the latter, said separate members being in spaced relation to the joining portions of the main stove members where coincident with the firepot, the spaces between the said separate members and the joints of the body portion of the stove communicating with the ash pit of the stove.

7. A heating stove provided with a firepot and an ashpit below the same, said stove being composed of front, back and side members joined together and each stove member having a corresponding portion of the firepot formed thereon with the edges of the section of the firepot formed 011 each stove member inclined away from the correspond ing edges of the firepot portions of the adj acent stove members to form a gradually widening space between said edges, and a stave member lodged in each space and conforming in shape thereto, each stave member being in spaced relation to the junction points between the body members of the stove where coincident with the firepot.

8. A heating stove provided with a firepot and an ashpit below the same, said stove being composed of front, back and side members joined together and each stove member having a corresponding portion of the firepot formed thereon with the edges of the section of the firepot formed on each stove member inclined away from the corresponding edges of the firepot portions of the adjacent stove members to form a gradually widening space between said edges, and a stave member lodged in each space and con forming in shape thereto, each stave member being in spaced relation to the junction points between the body members of the stove where coincident with the firepot, said stave members having passages therethrough opening into the firepot chamber and forming with the body members where joined together air chambers each communicating with the ashpit of the stove.

9. A heating stove of substantially square cross section formed of four separate side members joined at the mating edges, each side member having formed integral therewith the corresponding portion of a substantially circular fire pot with the terminal edges of the fire pot sections in spaced relation one to the other, and filling in members each having a curvature in substantial c0nformity to the curvature of the fire pot and lodged between the terminal edges of the fire pot, said filling in members defining air channels between the oined portions of the body members of the stove and the interior of the fire pot.

10. In a heating stove, separate body members joined together at the meeting edges and each having its walls in part formed into a corresponding section of a fire pot, each fire pot section terminating at the edges in shoulders, the shoulders of one fire potsection approaching those of the other fire pot section toward the upper end. of the fire pot, and completing members for the fire pot lodged between the shoulders and shaped in conformity with the space defined by the approaching shoulders of adjacent fire pot sections, said completing members being in spaced relation to the unction points of the main walls of the stove.

11. In a heating stove, separate body members joined together at the meeting edges and each having its walls in part formed into a corresponding section of a fire pot, each fire pot section terminating at the edges in shoulders, the shoulders of one fire pot section approaching those of the other fire potsection toward the upper end of the fire pot, and completing members for the fire pot lodged between the shoulders and shaped in conformity with the space defined by the approaching shoulders of adjacent fire pot sections, said completing members being in spaced relation to the unction points of the main walls of the stove and having passages through them leading from the interior of the fire pot to the spaces between the completing members and the junction points of the stove.

12. In a heating stove, a firepot structure having its walls in part formed integral with the walls of the stove, the said stove walls having extensions exterior to the firepot chamber and out of conformity with the walls of the firepot, and members introducable into the firepot walls to complete the latter, said completing members being interior to and spaced from the extensions of the walls of the stove, the completing members being formed at the ends with spacing extensions one constituting a closure for the top of the space formed between the completing members and the extensions of the stove members.

13. A heating stove provided with a firepot substantially circular in cross section and including filling in members, said stove having portions extending outward from the walls of the firepot where receiving the filling-in members, these extensions being in intersecting relation and coupled together where meeting, the joint thus formed being in spaced relation and exterior to the fillingin members of the firepot, each filling-in member having passages therethrough connecting the interior of the firepot with the space between the filling member and the joined extensions of the stove bottom.

14. A heating stove composediof members joined together at the angles of the body of the stove, the said stove having a firepot substantially circular in cross section with corresponding portions of its walls formed in the joined members of the body of the stove, and curved staves completing the continuity of the firepot and in spaced relation to the joints between those portions of the members of the body of the stove where coincident with the firepot.

15. A heating stove composed of members joined together lengthwise of the stove, each member having formed thereon a corre sponding portion of a fire pot terminating in a shoulder mating and spaced from the corresponding shoulder of the next adjacent fire pot section, and filling in members in spaced relation to the joints of the main stove members where coincident with the fire pot, the mating edges of the fire pot sections and the corresponding edges of the filling in members being shaped to hold the filling in members in position as continuations of the fire pot walls.

16. A heating stove composed of members joined together lengthwise of the stove, each member having formed thereon a corre sponding portion of a fire pot terminating in a shoulder mating and spaced from the corresponding shoulder of the next adjacent fire pot section, and filling in members in spaced relation to the joints of the main stove members where coincident with the fire pot, the mating edges of the fire pot sections and the corresponding edges of the filling in members being shaped to hold the filling in members in position as continuations of the fire pot walls, the filling in members and the portions of the body members of the stove exterior to the fire pot being provided with coacting supports and the filling in members being provided at the upper ends with ledges constituting closures for the spaces inclosed by said filling in members and the junction parts of the stove exterior to the fire pot.

17. A heating stove having its walls composed of a plurality of longitudinally disposed members, each having formed thereon a firepot section terminating at each end in a shoulder, each stove member having an extended portion beyond each end of the firepot section, the extended portion of one stove member being in intersecting relation to the extended portion of the next adjacent member, the extensions being also provided with matching fastening members, and curved staves conforming to the shape of the firepot and having beveled edges adapted to the shoulders at the terminal portions of the firepot parts of the stove members, each of said staves having one end formed to constitute a cover for the corresponding end of the space included between the stave and the adjacent intersecting extensions of the stove members.

18. A heating stove provided with a firepot and an ashpit thereunder, said stove being composed of a plurality of longitudinal members having corresponding portions of the firepot wall formed thereon, the ends of the portion of the firepot Wall formed on each member of the stove body having a longitudinal shoulder, and each stove member being extended beyond the terinination'of the portion of the firepot wall formed thereon in intersecting relation to the corresponding extension of the next adj acent stove body member, the matching extensions being provided with means for joining adjacent parts together, the extensions also being provided with lugs corresponding to the bottom portions of the fire chamber walls formed thereon, the edges of the fire chamber walls sloping away from the corresponding outer ends of the extensions of the body members, and stave members each adapted to the matching edges of adjacent firepot walls and formed with bevel edges adapted to the shoulders of the firepot walls, each stave being curved into general conformity with the shape of the fire pot walls and tapering toward one end to match the space between the adjacent ends of the firepot walls, each stave being also provided with passages therethrough and end lugs, the lug at one end constituting a cover for the chamber included between the outer face of the stave and the intersecting extensions of the body members of the stove where adjacent to the stave, and the other end of the stave having spaced lugs adapted to rest on the ledges adjacent the bottom edges of the firepot Walls.

19. A stove provided with a sectional fire pot having outer walls exposed tothe atmosphere and with exterior extensions constituting junction means also exposed to the atmosphere, and removable protectors separating said junction means from the fuel receiving portion of the fire pot and constituting continuations of the sectional members of the fire pot.

20. A heating stove of substantially square form in cross section with a fire-pot of substantially circular form in cross section, said fire-pot being formed in sections with the edges of the sect-ions extended into substantial conformity to the square form of the stove, and filling-in pieces for the firepot completing its circular continuity and constituting protectors for the extended corner portions of the fire-pot sections, the said extended corners having means for securing the fire-pot sections together, and the joints between the protectors and the fire-pot sections being out of line with the joints at the meeting points of the extensions of the fire-pot sections.

21. A heating stove comprising four side members joined at the meeting edges to constitute a stove body including a combustion chamber, a fire pot and an ash pit, the fire pot being generally circular in cross section and composed of sections corresponding to the four sides of the stove body, each section terminating in shoulders in spaced re lation to the corresponding shoulders of the other sections, and the corner joints of the side members of the stove being exterior to the fire pot, and completing members for the walls of the fire pot lodged in the spaces between the terminal shoulders of the fire pot sections and held in place in said shoulders against movement toward the interior of the fire pot, said completing members coacting with the corresponding portions of the corner joints of the side members to inclose air chambers between the fire pot walls and said corner joints.

22. A heating stove comprising four side members joined at the meeting edges to constitute a stove body including a combustion chamber, a fire pot and an ash pit, the fire pot being generally circular in cross section and composed of sections corresponding to the four sides of the stove body, each section terminating in shoulders in spaced relation to the corresponding shoulders of the other sections, and the corner joints of the side members of the stove being exterior to the fire pot, and completing members for the walls of the fire pot lodged in the space between the terminal shoulders of the fire pot sections and held in place in said shoulders against movement toward the interior of the fire pot said completing members coacting wit-h the corresponding portions of the corner joints of the side members to inclose air chambers between the fire pot walls and said corner joints, each of said completing members being perforated and terminating at the ends in ledges, one of which forms a closure for the corresponding end of the air chamber of which the completing members form one wall and the ledge at the other end constituting a supporting ledge for the completing member and providing a communicating passage between the ash pit and the said air chamber.

In testimony, that we claim the foregoing as our own, we have hereto afiixed our signatures in the presence of two witnesses.

JOSEPH A. BUCKWVALTER. HARRY W. KERN.

Witnesses HARVEY L. LANDIS, U. S. G. FINKBINER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G.

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