US1135805A - Instantaneous-water-heater casing. - Google Patents

Instantaneous-water-heater casing. Download PDF

Info

Publication number
US1135805A
US1135805A US84238214A US1914842382A US1135805A US 1135805 A US1135805 A US 1135805A US 84238214 A US84238214 A US 84238214A US 1914842382 A US1914842382 A US 1914842382A US 1135805 A US1135805 A US 1135805A
Authority
US
United States
Prior art keywords
posts
base
crown
ring
panels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US84238214A
Inventor
Herbert S Humphrey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RUUD Manufacturing CO
Original Assignee
RUUD Manufacturing CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RUUD Manufacturing CO filed Critical RUUD Manufacturing CO
Priority to US84238214A priority Critical patent/US1135805A/en
Application granted granted Critical
Publication of US1135805A publication Critical patent/US1135805A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/02Casings; Cover lids; Ornamental panels

Definitions

  • the primary object of this invention is to provide a sectional body or shell for instantaneous water heaters, the parts of which may be readily assembled and as conveniently taken apart. Provision is had for so arranging the separable parts of the body and for so supporting the water circulating coil therein that the latter may be removed without taking down the entire body.
  • the upright portion of the body wall is embodied in a post and panel construction, in the preferred adaptation the panels removably fitting and secured to the posts, the latter rising from a suitable base and at their upper ends sustaining a top or crown to which a flue is connected in the usual manner.
  • a horizontal belt-like ring which is supported by the posts and separates the upper and lower wall panels, and also provides a support for the circulation coil as well as a thermostatic tube if the latter is used.
  • Fig. 2 is a view of the heater body partly in elevation taken at right angles to Fig. 1, and partly in section on line 2-2 the improved heater of Fig. 5.
  • Fig. 3 is a view of the heater body shown partlyin top plan and partly in sectional plan, the portion in section being taken on line 33 of Fig. 1..
  • Fig. 4 is a sectional plan on line 4-4 of Fig. 1, and Fig. 5 is a similar View taken on line 55 of Fig. 2.
  • Fig. 6 is a vertical longitudinal section through one of the upright posts taken g. 3.
  • Fig. 7 illustrates in detail one of the wall-forming panels.
  • 2 designates a base of any suitable construction, in the present adaptation being of circular form and supported by legs 8. Also as here shown, the base supports the coil heating burners 4 to which gas may be supplied Specification of Letters Patent.
  • the top edge of the base constitutes the upstanding annular rim orlip, and at the outer side thereof is the annular flange or shoulder 7.
  • Rising from base 2 are posts 8 having their lower angular extremities 8 countersunk at 9 in enlargements of flange 7, being secured thereto by screws 10.
  • the upper extremity of each post is similar to its lower extremity, being of angular formation as indicated at 8" and countersunk at 9 in the lower portion of the annular crown or top 12 and secured by screw 10.
  • the lower edge of the crown forms the annular depending rim 13, above which is the external annular shoulder or flange 11 which, respectively, are complementary in form with rim 6 and flange 7 of the base.
  • the posts comprise a substantial support for the crown, and the base, posts and crown constitute a panel supporting skeleton which may be readily assembled and as conveniently taken apart.
  • each post is of bead-like form, as indicated at 15.
  • the inner portion of each post is of forked formation, the longitudinal ribs or wings .16 thereof diverging from bead 15, thereby forming an upright channel 17. Bridging this channel at suitable elevation above base 2 is lug 18.
  • Flange 19 is a belt-like ring which is formed with the outer peripheral flange 20', and at opposite sides of this flange are, respectively, the upstanding and dependingannular rims 21 and 22.
  • Flange 20 is notched at 2 to cmbrace each of posts 8, with tongue-like projections 24 within the notches and adapted to fit the post channels 17 and rest on lugs 18, thereby supporting the ring 19 in interlocking engagement with the posts, bracing the latter and materially strengthening the structure.
  • the ring may be moved vcrtically between the posts and tilted and manipulated as may be necessary to either place it in position or remove it.
  • ring 19 separates the upper and lower panel spaces and door openings, and also serves as a support for the lower extremity c of the circulation coil C, being formed with the open-top seat 25 to receive the same.
  • a thermostatic tube T is employed beneath the coil, as shown in patent to Edwin Ruud, No. 682,345,-September 10, 1901, opposite sides of the ring may be formed .with similar seats 26. It will be understood, however, that the invention is not limited in this regard, nor to the specific means here shown to flange 7 of base 2.
  • the free edge forlbracing the posts and for supporting the 001 The wall-forming panels located above ring 19, and panels 31 beneath the latter, are of like construction, in the present adaptation, each panel being of segment form and consisting of the separated outer and inner sheet-metal plates 32 and 33, respectively, with their edges seamed together as indicated at 34.
  • the panels fit the spaces between adjacent posts with their lip-like vertical edges secured to. post flanges 16 by screws 16.
  • the upper panels enter between outstanding flanges 14 and 20, respectively, of crown 12 and ring 19, with the lip-like upper and lower edges of the panels fitting the rim formations 13 and 21, respectively of said parts.
  • the lower panels 31 are fitted between and secured to adjacent posts and between the base flange 7 and ring flange 20 and at their upper and lower edges engage, respectively, rim 22 of ring 19 and rim 6 of base 2.
  • the upper panels are of like size and can be located interchangeably in the panel spaces, and the same would be true of the lower panels but for the notches necessary to embrace the lower coil extremity 0' and the thermostatic pipe T.
  • One of the upper panels constitutes a door 35 for the coil-inclosing portion of the heater body, being hinged at 36 to flange 14 of crown 12, and at its lower end similarly hinged at 36' to ring flange 20.
  • a corresponding lower panel provides a door 37 for the burner-inclosing portion of the body, being hinged'at 38 to ring flange 20 and at 38' of each door is provided with a latch 39.
  • One or more of the lower'panels may have its inner and outer plates perforated at 40 and 40, respectively, for admitting air to the burner chamber.
  • the post and panel construction provides a readily separable or knockdown heater body or shell of maximum strength and minimum weight. While a body of circular form is preferred, the invention is not limited thereto.
  • a knockdown wa-ter heater casing cornprising a base, a crown, .crown supporting uprights detachably secured to the latter and to the base, and removable upright wallforming sections.
  • a water heater casing comprising a base, posts rising therefrom, a horizontal reinforcement supported by the posts between the upper and lower ends of the latter, wall-forming panels inclosing the spaces above and below the reinforcement, and a crown.
  • a water heater casing comprising a base, posts rising therefrom, a horizontal ring supported by the posts between the up per and lower ends of the latter, wall-forming panels above and below the ring, and a crown.
  • a water heater casing comprising a base, posts rising therefrom, a horizontal ring supported by the posts between the upper and lower ends of the latter, wall-forming panels above the ring and extending from post to post, similarly arranged panels beneath the ring, and a crown.
  • a water heater casing comprising a base, posts rising therefrom with lugs projecting from the posts, a horizontal reinforcement adapted to rest on said lugs, wallforming panels fitting the posts above and below the reinforcement, and a crown.
  • a water heater casing comprising a base, posts rising therefrom with lugs projecting from the posts, a reinforcement movable vertically between the posts and adapted to rest on said lugs, thereinforcement being notched to embrace the posts, wallforming panels fitting the posts above and below the reinforcement, and a crown.
  • a water heater casing comprising a base, posts rising therefrom, a crown, a horizontal ring movable between the posts and notched to embrace the same, means for supporting the ring on the posts above the lower ends of the latter, and wall-forming panels fitting the posts above and below the ring.
  • a water heater casing comprising a base, posts rising therefrom and at their in-' nor sides formed with inwardly facing channels, a reinforcement having projections adapted to enter the post channels and rest on said lugs, wall-forming panels fitting the posts, and a crown.
  • a water heater casing comprising a base, posts rising therefrom, the inner faces of the posts formed with upright channels and with ring-supporting lugs in the channels, a horizontal ring notched to embrace the posts and projections on the ring adapted to enter the post channels and rest on said lugs, wall-forming panels extending from )0st to post and secured to the channel- 'orming portions thereof, and a crown.
  • a water heater casing comprising a base, posts rising therefrom having bead like outer sides and forked channel-forming inner sides, a horizontal reinforcement notched to embrace the forked portions of the posts, means for supporting the reinforcement on the posts above the lower ends of the latter, wall-forming panels extending from post to post and fitting the channelforming forks thereof with adjacent panels I separated by the bead-forming portions of the posts, and a crown.
  • a water heater casing comprising a base formed with sockets, posts having reduced lowerextremities entered and secured in the sockets, an inclosing wall secured to the posts, and a crown.
  • a water heater casing comprising a base, posts rising therefrom and formed with reduced upper extremities, a crown formed with sockets in which the post extremities are entered and secured, and an inclosing wall secured to the posts.
  • a water heater casing comprising a base, posts rising therefrom, a crown supported by the posts, a horizontal ring supported by the posts intermediate their upper and lower ends, wall-forrning panelsextending from post to post and from the crown downwardly to said ring, and similar panels extending from post to post and from said ring downwardly to the base.
  • a water heater casing comprising a base, a horizontal ring spaced upwardly from the base, a crown spaced upwardly from said ring, an upright inclosing wall extending from the base to the crown and provided with door openings above and below said ring, doors for said openings, hinges for the upper door secured to the crown and to said ring, and hinges for the lower door secured to said ring and to the base.
  • a water heater casing comprising a skeleton, and wall-forming panels secured to the skeleton, each panel consisting of inner and outer plates having their, edges and a crown.
  • a water heater casing comprising a base, posts rising therefrom with lugs projecting from the posts, a ring adapted to rest in said lugs with pipe seat-forming depressions in the ring, wall-forming panels above and below the ring, and a crown.
  • a water heater casing comprising a base, posts rising therefrom, lateral rein forcement means for reinforcing the posts arranged intermediate the upper and lower ends thereof and secured to adjacent posts, a crown at the upper ends of the posts, and an inclosing wall secured to the posts.
  • a water heater casing comprising a frame, and wall-forming panels secured to the frame, each panel consisting of inner and outer plates spaced apart between their edges and with the edges of the plates united to form a unitary panel structure.
  • a water heater casing comprising a base, posts rising therefrom and formed with panel-edge receiving surfaces, panels having their edges secured to said surfaces, each panel consisting of inner and outer plates spaced apart between their edges and with their edges united to form a unitary panel structure, and a crown.
  • a water heater casing comprising a base, posts rising therefrom, an upright inclosing wall, a crown, and a thermostatic pipe support within the casing.
  • a water heater casing comprising a base, posts rising therefrom, a crown, wallforming anels secured to the posts, a lateral reinfbrcement extending from post to post and located between the upper and lower ends of the posts, and a thermostatic pipe support within the casin.

Description

H. S. HUMPHREY.
INSTANTANEOUS WATER HEATER CASING,
APPLICATION FILED JUNE'Z. 1914.
Patented; Apr. 13, 1915.
2 SHEETSSHEET 1.
WITNESSES INVENTOR H. S. HUMPHREY.
INSTANTANEOUS WATER HEATER CASING.
APPLICATION FILED JUNE 2.1914.
mfimwm Patented Apr. 13, 1915.
2 SHEETS-SHEET 2.
$6. $6M Km MM smarts ,an n.
HERBERT s. NUMPHR Y, or atmvrazoo, MICHIGAN, ASSIGNOR TO noon MANUFAC- rnmNe COMPANY, or PITTSBURGH, PENNSYLVANIA, a CORPORATION or NEW annsn INSTANTANEOUS-WATER-HEATER CASING.
alacca.
To all whom it may concern:
Be it known that I, HERBERT S. HUM- PHREY, a citizen of the United States, and
on line 6-6 of Fi resident of Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented certain new and useful Improvements in Instantaneous-Water-Heater Casings, of which the following is a specification.
The primary object of this invention is to provide a sectional body or shell for instantaneous water heaters, the parts of which may be readily assembled and as conveniently taken apart. Provision is had for so arranging the separable parts of the body and for so supporting the water circulating coil therein that the latter may be removed without taking down the entire body. The upright portion of the body wall is embodied in a post and panel construction, in the preferred adaptation the panels removably fitting and secured to the posts, the latter rising from a suitable base and at their upper ends sustaining a top or crown to which a flue is connected in the usual manner. Also embodied in the sectional formation is a horizontal belt-like ring which is supported by the posts and separates the upper and lower wall panels, and also provides a support for the circulation coil as well as a thermostatic tube if the latter is used.
In the accompanying drawings, is a front elevation of body, portions thereof being shown in section. Fig. 2 is a view of the heater body partly in elevation taken at right angles to Fig. 1, and partly in section on line 2-2 the improved heater of Fig. 5. Fig. 3 is a view of the heater body shown partlyin top plan and partly in sectional plan, the portion in section being taken on line 33 of Fig. 1.. Fig. 4 is a sectional plan on line 4-4 of Fig. 1, and Fig. 5 is a similar View taken on line 55 of Fig. 2. Fig. 6 is a vertical longitudinal section through one of the upright posts taken g. 3. Fig. 7 illustrates in detail one of the wall-forming panels.
Referring to the drawings, 2 designates a base of any suitable construction, in the present adaptation being of circular form and supported by legs 8. Also as here shown, the base supports the coil heating burners 4 to which gas may be supplied Specification of Letters Patent.
Figure 1 Patented Apr. 13, 1915.
Application filed June 2, 1914. Serial N 0. 842,382.
through ducts 5 in the bottom of the base, all as heretofore practiced and for which no novelty is claimed.
The top edge of the base constitutes the upstanding annular rim orlip, and at the outer side thereof is the annular flange or shoulder 7. Rising from base 2 are posts 8 having their lower angular extremities 8 countersunk at 9 in enlargements of flange 7, being secured thereto by screws 10. The upper extremity of each post is similar to its lower extremity, being of angular formation as indicated at 8" and countersunk at 9 in the lower portion of the annular crown or top 12 and secured by screw 10. The lower edge of the crown forms the annular depending rim 13, above which is the external annular shoulder or flange 11 which, respectively, are complementary in form with rim 6 and flange 7 of the base. The posts comprise a substantial support for the crown, and the base, posts and crown constitute a panel supporting skeleton which may be readily assembled and as conveniently taken apart.
The central outer portion of each post is of bead-like form, as indicated at 15. The inner portion of each post is of forked formation, the longitudinal ribs or wings .16 thereof diverging from bead 15, thereby forming an upright channel 17. Bridging this channel at suitable elevation above base 2 is lug 18.
19 is a belt-like ring which is formed with the outer peripheral flange 20', and at opposite sides of this flange are, respectively, the upstanding and dependingannular rims 21 and 22. Flange 20 is notched at 2 to cmbrace each of posts 8, with tongue-like projections 24 within the notches and adapted to fit the post channels 17 and rest on lugs 18, thereby supporting the ring 19 in interlocking engagement with the posts, bracing the latter and materially strengthening the structure. The ring may be moved vcrtically between the posts and tilted and manipulated as may be necessary to either place it in position or remove it. In addition to its frame bracing functhm, ring 19 separates the upper and lower panel spaces and door openings, and also serves as a support for the lower extremity c of the circulation coil C, being formed with the open-top seat 25 to receive the same. And if a thermostatic tube T is employed beneath the coil, as shown in patent to Edwin Ruud, No. 682,345,-September 10, 1901, opposite sides of the ring may be formed .with similar seats 26. It will be understood, however, that the invention is not limited in this regard, nor to the specific means here shown to flange 7 of base 2. The free edge forlbracing the posts and for supporting the 001 The wall-forming panels located above ring 19, and panels 31 beneath the latter, are of like construction, in the present adaptation, each panel being of segment form and consisting of the separated outer and inner sheet- metal plates 32 and 33, respectively, with their edges seamed together as indicated at 34. The panels fit the spaces between adjacent posts with their lip-like vertical edges secured to. post flanges 16 by screws 16. The upper panels enter between outstanding flanges 14 and 20, respectively, of crown 12 and ring 19, with the lip-like upper and lower edges of the panels fitting the rim formations 13 and 21, respectively of said parts. Similarly, the lower panels 31 are fitted between and secured to adjacent posts and between the base flange 7 and ring flange 20 and at their upper and lower edges engage, respectively, rim 22 of ring 19 and rim 6 of base 2. The upper panels are of like size and can be located interchangeably in the panel spaces, and the same would be true of the lower panels but for the notches necessary to embrace the lower coil extremity 0' and the thermostatic pipe T.
One of the upper panels constitutes a door 35 for the coil-inclosing portion of the heater body, being hinged at 36 to flange 14 of crown 12, and at its lower end similarly hinged at 36' to ring flange 20. A corresponding lower panel provides a door 37 for the burner-inclosing portion of the body, being hinged'at 38 to ring flange 20 and at 38' of each door is provided with a latch 39. One or more of the lower'panels may have its inner and outer plates perforated at 40 and 40, respectively, for admitting air to the burner chamber.
When it is necessary to renew or repair the circulation coil, it may be lifted out of the heater body upon removing crown 12, and the upper panel which overhangs the lower coil terminal 0', and thermostatic tube T may be similarly removed upon taking off the panels which confine it in seats 26. Thus it will be seen that the circulation parts are readily accessible, and their complete removal may be accomplished by taking apart only a small portion of the-body or shell. The air insulated wall-forming panels minimize heat radiation, thereby increasing the elliciency of the apparatus and decreasing the temperature of the room or compartment in which the heater is located. And this is of special importance as the present invention is designed especially for heaters of relatively small size for individual apartment use.
The post and panel construction provides a readily separable or knockdown heater body or shell of maximum strength and minimum weight. While a body of circular form is preferred, the invention is not limited thereto.
I claim:
' 1. A knockdown wa-ter heater casing cornprising a base, a crown, .crown supporting uprights detachably secured to the latter and to the base, and removable upright wallforming sections.
2. A water heater casing comprising a base, posts rising therefrom, a horizontal reinforcement supported by the posts between the upper and lower ends of the latter, wall-forming panels inclosing the spaces above and below the reinforcement, and a crown.
3. A water heater casing comprising a base, posts rising therefrom, a horizontal ring supported by the posts between the up per and lower ends of the latter, wall-forming panels above and below the ring, and a crown.
4. A water heater casing comprising a base, posts rising therefrom, a horizontal ring supported by the posts between the upper and lower ends of the latter, wall-forming panels above the ring and extending from post to post, similarly arranged panels beneath the ring, and a crown.
5. A water heater casing comprising a base, posts rising therefrom with lugs projecting from the posts, a horizontal reinforcement adapted to rest on said lugs, wallforming panels fitting the posts above and below the reinforcement, and a crown.
6. A water heater casing comprising a base, posts rising therefrom with lugs projecting from the posts, a reinforcement movable vertically between the posts and adapted to rest on said lugs, thereinforcement being notched to embrace the posts, wallforming panels fitting the posts above and below the reinforcement, and a crown.
7. A water heater casing comprising a base, posts rising therefrom, a crown, a horizontal ring movable between the posts and notched to embrace the same, means for supporting the ring on the posts above the lower ends of the latter, and wall-forming panels fitting the posts above and below the ring.
. 8. A water heater casing comprising a base, posts rising therefrom and at their in-' nor sides formed with inwardly facing channels, a reinforcement having projections adapted to enter the post channels and rest on said lugs, wall-forming panels fitting the posts, and a crown.
9. A water heater casing comprising a base, posts rising therefrom, the inner faces of the posts formed with upright channels and with ring-supporting lugs in the channels, a horizontal ring notched to embrace the posts and projections on the ring adapted to enter the post channels and rest on said lugs, wall-forming panels extending from )0st to post and secured to the channel- 'orming portions thereof, and a crown.
10. A water heater casing comprising a base, posts rising therefrom having bead like outer sides and forked channel-forming inner sides, a horizontal reinforcement notched to embrace the forked portions of the posts, means for supporting the reinforcement on the posts above the lower ends of the latter, wall-forming panels extending from post to post and fitting the channelforming forks thereof with adjacent panels I separated by the bead-forming portions of the posts, and a crown.
11. A water heater casing comprising a base formed with sockets, posts having reduced lowerextremities entered and secured in the sockets, an inclosing wall secured to the posts, and a crown.
12. A water heater casing comprising a base, posts rising therefrom and formed with reduced upper extremities, a crown formed with sockets in which the post extremities are entered and secured, and an inclosing wall secured to the posts.
13. A water heater casing comprising a base, posts rising therefrom, a crown supported by the posts, a horizontal ring supported by the posts intermediate their upper and lower ends, wall-forrning panelsextending from post to post and from the crown downwardly to said ring, and similar panels extending from post to post and from said ring downwardly to the base.
14. A water heater casing comprising a base, a horizontal ring spaced upwardly from the base, a crown spaced upwardly from said ring, an upright inclosing wall extending from the base to the crown and provided with door openings above and below said ring, doors for said openings, hinges for the upper door secured to the crown and to said ring, and hinges for the lower door secured to said ring and to the base.
15. A water heater casing comprising a skeleton, and wall-forming panels secured to the skeleton, each panel consisting of inner and outer plates having their, edges and a crown.
18. A water heater casing comprising a base, posts rising therefrom with lugs proiecting from the posts, a ring adapted to rest in said lugs with pipe seat-forming depressions in the ring, wall-forming panels above and below the ring, and a crown.
19. A water heater casing comprising a base, posts rising therefrom, lateral rein forcement means for reinforcing the posts arranged intermediate the upper and lower ends thereof and secured to adjacent posts, a crown at the upper ends of the posts, and an inclosing wall secured to the posts.
20. A water heater casing comprising a frame, and wall-forming panels secured to the frame, each panel consisting of inner and outer plates spaced apart between their edges and with the edges of the plates united to form a unitary panel structure.
21. A water heater casing comprising a base, posts rising therefrom and formed with panel-edge receiving surfaces, panels having their edges secured to said surfaces, each panel consisting of inner and outer plates spaced apart between their edges and with their edges united to form a unitary panel structure, and a crown.
22. A water heater casing comprising a base, posts rising therefrom, an upright inclosing wall, a crown, and a thermostatic pipe support within the casing.
23. A water heater casing comprising a base, posts rising therefrom, a crown, wallforming anels secured to the posts, a lateral reinfbrcement extending from post to post and located between the upper and lower ends of the posts, and a thermostatic pipe support within the casin. I
In testimony whereof, a x my slgnature in presence of two witnesses.
HERBERT S. HUMPHREY.
Witnesses:
B. M. SCHERER, F. A. LEMKE.
US84238214A 1914-06-02 1914-06-02 Instantaneous-water-heater casing. Expired - Lifetime US1135805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US84238214A US1135805A (en) 1914-06-02 1914-06-02 Instantaneous-water-heater casing.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84238214A US1135805A (en) 1914-06-02 1914-06-02 Instantaneous-water-heater casing.

Publications (1)

Publication Number Publication Date
US1135805A true US1135805A (en) 1915-04-13

Family

ID=3203912

Family Applications (1)

Application Number Title Priority Date Filing Date
US84238214A Expired - Lifetime US1135805A (en) 1914-06-02 1914-06-02 Instantaneous-water-heater casing.

Country Status (1)

Country Link
US (1) US1135805A (en)

Similar Documents

Publication Publication Date Title
US2161537A (en) Gas range construction
US1135805A (en) Instantaneous-water-heater casing.
US1800052A (en) Oven lining and rack supported thereby
US1907414A (en) Oven of gas and electric ranges
US2491664A (en) Floor and wall furnace
US1118537A (en) Portable stove.
US2363185A (en) Heating apparatus
US2407375A (en) Furnace assembly
US1529871A (en) Gas heater
US525170A (en) Hot-air stove
US1611364A (en) Heater
US314320A (en) Apparatus
US1395312A (en) Gas-stove
US939925A (en) Heater.
US1439538A (en) Pipeless furnace
US2641245A (en) Heating unit
US753104A (en) Ventilator attachment for stoves
US1744523A (en) Geyser or like water heater
US1723716A (en) Gas-heated furnace
US982879A (en) Gas-heater.
US441273A (en) William c
US1126753A (en) Oven.
US1408743A (en) Heater
US104269A (en) De witt
US1941792A (en) Bake oven