Sept. 10, 1946. s. s. VINEBERG 2,407,590 HEATING APPARATUS ‘ Filed Jan. 23; 1943 ' > A .. 3 Sheets-Sheet 1 """"""" " vFl ’ 7! ' ' x , a4 " @HZ. : 2'5 .|]""" :' a . I: Mir.’ - - 7/ ' ‘ 74 ‘ INVENTOI? ' Sept. 10, I946. _ s; s, WNEQERG ' 2,407,590 HEATING APPARATUS Filed Jan. 23, 1943 3 Sheets-Sheet 2 16' FW @9 473.6’ 4,28’ m VENTQ/v _ A rro?kns I Sept- .10, 1946. s. s. YiNEBERG 2,407,590 HEATING APPARATUS Filed Jan. 23, 1943 3 Sheets-Sheet 3_ _ ATTORNEYJ ' Patented Sept. 10, 1946 ' 2,407,590 barren STATES PATENT OFFICE 2,407,590 HEATING APPARATUS Samuel S. Vineberg, Buffalo, N. Y. Application January 23, 1943, Serial No. 473,350 6 Claims. (Cl. 126-140) 1 . 2 This invention relates to heating apparatus for houses, and has for one object to provide a de sirable, efficient and economical heater in which _ wood or other fuel can be burned in an open ?re, as in an ordinary open ?replace, but which obvi ates the necessity for the usual expensive, built in masonry ?replace and chimney. Other objects of the invention are to produce Ch With the above and other objects and advan tages in view, which will hereinafter appear, pre ferred embodiments of my invention, disclosed in the accompanying drawings, are hereinafter described and the novel features of the invention are set forth in the appended claims. In said drawings: Fig. 1 is a front elevation, partly in vertical ?re can be built and operated and which is 10 section, of a heater embodying my invention. Fig. 2 is a sectional plan view thereof, taken equipped with safety means that automatically approximately on the line 2-2, Fig. 1. close in the ?re and provide for smoke removal Fig. 3 is a fragmentary, transverse, vertical upon failure or reduction of the draft below a a heater with an open front in which an open normal operating condition, to prevent smoking section of the heater, on line 3-3, Fig. 8, show or the escape of products of combustion into the 15 ing the means for releasably holding the front gate or shutter for the ?replace in different open house; which is provided with a smoke pipe of positions. small dimensions in which a forced draft for Fig. 4 is a fragmentary, sectional elevation the ?re is created, whereby the apparatus can showing an alternative arrangement of the be installed and operated at moderate expense smoke discharge ?ue or pipe. in a house that is not equipped with a chimney, 20 Fig. 5 is a fragmentary, sectional plan View on such as ordinarily required for an open ?replace; line 5-5,v Fig. 1, showing the cold air intake. which is adapted for use against an inner parti Fig. 6 is a central vertical section of the heater tion wall or other wall of a house where there is on line 6-6, Fig. 1. no chimney ?ue; which is provided with safety Fig. 7 is a vertical sectional elevation on line means which will automatically check the ?re if 7-1, Fig. 8. too hot, and prevent the escape of smoke into 25 Fig. 3 is a fragmentary sectional plan View on the house, whereby the ?re can be safely left line 8-8, Fig. 7. i burning without the presence of anyone in the Fig. 9 is a fragmentary vertical sectional ele house to attend the ?re and the ?re hazard of vation on line 9-9, Fig. 8, showing the gate or many ?replaces is eliminated; which is provided shutter in open position. with a smoke pipe having main and safety Fig. 10 is a diagram of the electrical control branches and means whereby, in the normal op means for the heater. eration of the heater, a forced draft is created Fig. 11 is an enlarged fragmentary section in the main branch pipe, whereas upon failure in the normal operation of the forced draft, the 35 showing in full lines the gate-holding means in ' holding position, and in dotted lines the position open front of the heater is closed and the safety of the parts when the gate is released. branch pipe is opened for the escape of the prod Fig. 12 is a fragmentary, vertical section of ucts of combustion and the heater is prevented the lower portion of the gate showing means for from smoking; also to provide a portable ?re urging the gate in a downward or closing direc place which can be installed in any desired place tion when released. in a house and affords the pleasures of an open The heater comprises an outer metal casing wood ?re burning in the usual open ?replace; l0 and a metal ?re box or chamber ll which is which simulates and operates like the usual open rranged within the outer casing with the side ?replace; which can be closed and operated like a stove; which can be adapted to ?t in and oper 45 walls [2, back wall I3, top wall l4, and preferably 'also the bottom. wall [5 of the ?rebox spaced in ate in an ordinary ?replace opening; which is ’wardly from the corresponding walls of the outer designed to draw cold air from the room and casing so as to provide an air space iii within the heat it and return the heated air into the room outer casing between the walls thereof and the or house; which can be utilized in conjunction‘ with an existing ?replace to improve its heating 50 walls of the ?re box. The ?re box has an open front or large front opening I‘! through which . efficiency and prevent its smoking due to faulty air is admitted to support combustion of the wood ?replace or flue design; and which reduces ?rst or other fuel which may be placed through the cost of installation in new or old houses, and en opening for burning in the ?re box. A smoke pipe sures economical and satisfactory operation re or fine connects with the ?re box preferably by gardless of the height of the house chimney. 55 means of a funnel-like mouth portion I81 which ' 2,407,590‘ has a relatively long, narrow inlet opening that extends across the width of the fire box and opens thereinto at its top front portion, said mouth portion tapering to its junction with the smoke pipe. As shown, this smoke pipe is located in p the air space l?'within the outer casing l8 and is interrupted by or has interposed between por- ' tions it, Isa. thereof (herein designated respec 4 the ?re box into the house when the safety branch smoke ?ue is opened‘ and the draft fan motor fails or the fan is not driven at a suffi cient speed to create the necessary forced draft for a normal operation of the heater. As illus trated in the drawings, this gate is composed of a plurality of narrow leaves or sections 3| suitably hinged to each other to fold into a zig-zag or pieatedformation for opening the gate and to tively as inlet and suction portions), a condenser slide vertically in extended form’ in’ suitable or heat exchanger. Zitwhich may be of any suit 10 guides 32 at opposite sides of the front opening able construction adapted to effect exchange of oh the heater for closing said opening. The heat between air circulated through the air space‘ guides 32 connect at their upper ends with a It and the products of combustion passing through the smoke pipe. The smoke condenser‘ shown comprises a box or chamber. which con meets at opposite sides with the inlet‘and suc tion sections l9, tad of the ‘smokepipe'ancl has a' plurality of open-ended air tubes 2| extending chamber. 33 which permits the folding or col lapsing. of the leaves of the gate when the lower end of the gate is raised to open or uncover the frontier the heater.‘ The upper end or leaf of the gate is hingedly fastened as at 3G in the gate chambertii. Jonrnalled. or rotatably mounted on , therethrough from top to bottom for the passage the bottom leaf or lower end portion of the gate of air from the air space it upwardly through 20 is a Sha-ft'SWOH the oppositeends of which‘ are the~tubes, so that the products of combustion will ?xed = gear‘ pinifonsv 35"." arranged to meshi'rwith pass around the tubes 2i ‘and there will be an ex toothed (cracks 3? stationarilyi arranged» adjacent \ change of heat between the air and the products of combustion with the result of cooling» and con " densingthe latter and heating the air. The smoke pipe sectionv Ida leads from the outlet side of the condenser to the suction inlet of ‘a- fan or bloweri23 which is driven by a motor the vgateLguides-at the opposite sides of‘ thel‘op‘en front i of ‘i the heater so that when‘ the gateis opened ,or closed‘, the rolling of the apinions-rorr the toothed rack'sriwill iequalize theltravel ‘of op" p'osit'e. sides of the gate: and? prevent possible jamming‘ of the gate" in‘the-guides; Preferably through the pipe anddischarging the smoke or 30 a coil spring 38 surrounds the'shaft‘35 and'is‘cone > nected at one end to theshaftland at the other ‘Y products of combustion through a discharge sec end to theibottomi leaf 10f ‘the; gate}. see'lFigl 12,~ tion 2110f the pipe, which» may be disposed in any in suchv a manner that when-‘the gate‘lis opened, suitablelmanner'to- discharge the smoke out-of or its lower end raised manual'lyythe spring; will ' doors; Forainstance; this discharge section as be wound ‘up and>~wi11 act by its unwinding-or» shown in Figs. 1 and ,6, could lead'to a safety 1 spring action‘ to rotate the‘shftft 'andrpinions’lin section, pipe or ?ue 25, which ascends from its; a-direction to close the'gate, the spring-‘actuated connection with-the main smoke discharge pipe shaft and pinions thusacting ~.to'positive1y>move'i 24iand enters agchimney fine, or may lead out the gatefin'theiclosing direction. of-doors through anyconvenienteouter wall of ' The‘gate is held open, or up against the action the house; or, as shown in ‘Fig. 4, the discharge of gravity-or of itsclosingspringSB‘byaholding 1 pipes“ v‘can be arranged to'pass throughthe cellar device which} as shown, consists of a toothedra'ck-~ to a distantly located house chimney or other sew-men‘ ismovably mounted theca'sing at one ' outlet and to discharge the smoke'ior gases out side ‘of’ the gate,- as by pivots 46 at its opposite -~ of doors independently of ‘or without connection g 5, ends ‘entering’v suitable "bearings on *the casing, with the safety ?ue 25. wherebyithe movablemack dais-adapted to be" Themain smoke pipe and safety branchlpipe rocked to engage oneloranother ‘of its teeth with i are controlled by suitable damperi or -‘ closure an adjacenteendirof-i-thei pinion shaft 35." The means adapted to close thesafety branch ZEland gate ‘is thus adapted to be held- in! di?erent-adl open-‘the main‘ suction branch [9a leading to justments to more'or'lessiiincover the-open-frontL the fan, or to close the latter ‘and open'the safety of the‘heater by raising-or loweringi'the gateito ' branch.~ In the construction shown for this pur the desired position and then shiftingithe toothed‘ pose, butter-fly dampers 2v37and- 2'l3are provided rack13§into engagement withlthe-shaft 353- The in themain and safety branches of the smoke gate ‘is released \to- cause it- to drop-'10!‘ close‘ by"v pip'eand may be operated by electrical means shifting- the - rack: 39 -to"disengage" 'it- fromwthe under the ccntrolof 'thespeed of the fan motor,‘ shaft; The ~movable~-rack1' is! provided with = an“L for creating-erforced draft from the ?re box as hereinafter described, so that in normal oper ation of the heater, the safety branch 25 will be closed by the damper‘Z'I and the main suction branch opened by the damper 2?‘, so that the smoke or products of combustion willbe drawn by the fan through the main suction pipe i961, and discharged out of doors through discharge pipe 24.’ Whereasupon failure of the fan mo tor, or its operation at less than a predeter mined minimum speed, the damper 25 will be closed to shut off the pipe to the suction fan, and the damper 27 opened to connect the safety branch pipe or ?ue with the suction branch Gila, for the escape of the smoke through the safety smoke branch 25. The heater is, also provided with a movable gate or shutter 38 which is operated automati cally, as later described, to close the open front or. draftivopening of the heater for preventing ‘ escape of smoke vor ‘products o-f-combustion from operating-‘handle or - rod‘ 142 swhich ~eiitends'~'-out ' throughla-lhole-inlthe-ifr‘ont of the heater‘ casing’ and-is attached at its inner-end‘to anlarmeon'the racki39§isovthat the-handle‘canbe operated-man?"v uanyror shifting ‘the irackftoengag'e "and disené gage‘ the shaft - 35 "-for holding eor‘ releasing :the" gate§as~emay beidesiredw V V Automatics-means are‘ also providedlwhichijact , during normal operationof the jheatertojretain ‘ thefgate holding ‘device "or ‘ rack ‘ in‘ “position .to.' hold ‘ the gate- open‘ and which‘ act automatically ii uponaifailure of-thejfan motor,,or‘ a‘reductionjr in- thejspeed of the‘jjfan below 'a“predet'ermined ' minimum speed, to shift the" holding ‘ device'lto' " release the 'gateyto permit it to close. The auto matic means‘ asishown" comprise‘ a"solenoid"or‘f electromagnetic ‘device; 44;‘ the ‘movable core ' of ‘ which“ is Hoperatively connected to .an‘ arm‘, ‘45*.‘01’1' ‘the movablara'ck ‘39 so that"wheh'thd'soleiiéid“ $2,407,590 is energized, the rack will be held in position to 6 66 indicates a safety signal lamp or device which hold the gate open, and when the solenoid is de is connected by a conductor 61 with a contact 68 energized, a spring 46 acting on an extension of of the thermostatic switch 64 and by a conductor the movable core or element of the solenoid will 69 with the conductor 60 leading to the speed shift said element and the rack 39 out of engage U! governor switch 41. The circuit of this signal ment with the pinion shaft 35 to release and per lamp will ‘be maintained open and the lamp mit the closing of the gate. The electric device extinguished when the speed governor switch 41 44 may be connected as hereinafter described, in is closed’ and-the solenoids 44 and 50 are ener circuit with a controlling switch 41 actuated by gized, that is during normal operation of the a speed governor 48, diagrammatically illustrated 10 ‘heater, and during normal travel of the movable in Fig. 10, which is driven by the fan motor 55. armrof the thermostatic switch throughout a de This governor and switch are arranged so that sired range of temperature. If, however, the tem when the fan motor is'operating at a desired or perature of the heater rises above a safe maxi normal speed, the governor will hold the switch mum, the abnormal movement of the movable closed to energize the solenoid, which then acts 15 arm of the thermostatic switch 64 will connect to hold the gate open, whereas upon failure of the the contact ‘68 with the conductor 65 and con fan motor, or reduction in the speed of the fan nect the signal lamp across the transformer sec below the predetermined minimum speed, the ondary through the conductors 65 and 69, thus lighting the lamp-and indicating the dangerous governor will open the switch and thereby de energize the solenoid, whereupon the spring 46 high temperature of the heater. At the same will actuate the holding device to release the gate, time this operation of thethermostatic switch 64 which will be closed by its spring 38. will break the circuit through the solenoid 44 and permit the spring 46 thereof to operate the gate > The damper control means for the safety smoke ?ue may be operated, like the control or holding holding rack 39 to cause the closing of the safety gate 30, thereby'preventing danger from over device for the safety front gate, by an electro magnetic device or solenoid 50, the core or mov able member 5! of which may be connected with the dampers 26 and 27 by suitable lever and link mechanism 52, 53, constructed so as to close the heating by the heater. 39 to release the gate and permit it to close; and spring 54 of the solenoid 50 will actuate the damper mechanism to close the smoke suc > tion pipe lea and open the safety smoke ?ue 25. 75 necessity for the heavy installation expense for the ordinary open ?replace. Because of the pro The heater is also provided with, an air circu lating fan or blower 10 which is preferably driven by the driving motor 55 for the forced draft fan. damper 21 of the safety smoke ?ue 25 and open 30 This fan may be, as shown, connected with the the damper 26 and the suction pipe [So when the motor shaft 56 at the opposite side of the motor solenoid is energized, as indicated by the position 55 from the forced draft fan, and the fan is ar ranged to draw air through an air inlet opening of the parts in Fig. 10. When the solenoid is de energized, a suitable spring 54 acting on the sole ll in the front of the heater and through an air space beneath the ?re box and discharge the air noid core 5i will, through the lever and link into the air space lb of the heater, whereby the mechanism, reverse the position of the dampers, air is heated by passing over the heated walls of to close the suction pipe I9a and open the safety the the box. The pressure of the heated air in branch 25 for the escape of the smoke or prod the air space 16 forces the air through the tubes ucts of combustion by natural draft through the of the heat exchanger 20 and through suitable safety ?ue or pipe. ‘ outlet openings 13, which may be arranged in Fig. 10 illustrates diagrammatically suitable the upper side portions of the heater casing to electrical connections for operating the solenoids deliver the heated air into the room. The ar 44 and 50 which control the safety front gate and rangement of the motor and air circulating fan the smoke pipe damper means. Referring to Fig. 10, 55 represents the electric motor for driving 45 is such that the cool air drawn in from the ad jacent ?oor of the room is passed over the motor, the draft fan 23. The speed governor 48 for ac thus serving to keep the motor cool. Preferably, tuating the control switch 41 may be connected the motor and fans are enclosed within a cham to and actuated by the motor shaft 55. 51 indi ber or housing 74 which may be separated by an ' cates a transformer which is connected across the air space from the fire box and provided with main line conductors LL’ for the fan motor. One walls of heat and sound insulating construction side of the secondary 58 of this transformer is adapted to deaden the noise of operation of the connected by conductor 59, switch 41, conductor motor and fans. 60 to the solenoid 50 which is connected by con In the heater as illustrated in Fig. l, a false ductor 5| to. the other side of the transformer mantel or covering shell is provided comprising secondary, and the other solenoid 44 is connected upper and lower sections 15, 16, which may be across the transformer secondary by a conductor shaped and ornamented to simulate a built-in 62 branchingifrom conductor 50, the winding of ?replace and chimney, thus giving the heater solenoid 44, conductor 63, a thermostatic switch the appearance of an ordinary ?replace and 64, conductor 65 and conductor 6|. Thus, when chimney. The upper section 16 of the shell is the governor switch 4'! and thermostatic switch preferably arranged so that it can be adjusted 64 are closed, as shown in Fig. 10, that is, while upwardly or downwardly over the casing Ill of the heater is operating normally under forced the heater through an opening in the top or man-‘ draft, or normal speed of the suction fan, the tel shelf of the lower section 15 of the shell so as two solenoids will be energized and the safety to thus adapt the shell to different ceiling heights. front gate 36 will be held open and the safety By reason of the hereinbefore described con smoke ?ue 25 closed. However, upon failure of the electric current or reduction of speed of the struction and operation of the heater, it will be fan motor below the predetermined minimum, understood that the device can be operated with the speed governor 48 will open the switch 41 ‘ safety as an open ?replace and afford the pleas and the solenoids will be deenergized, whereby 0 ures of an open ?re without the accompanying spring 45 of solenoid 44 will rock holding rack ?re hazards so often involved, and without the visions for a forced draft and the heat exchanger which acts to cool or condense the smoke, the 2,407,590 7 8 smoke pipes can beof small diameter, Pipes of posite edges of said sate, a shaft roiaiably a mounted on said gate having pinions ?xed thereto not over approximately four inches in diameter being suf?cient to maintain a ?re for ample heat ing. These factors adapt the heater for use in locations distant-from the house chimney or without the necessity for the usual masonry and meshing with said racks, a spring arrangedgto rotate said shaft and pinions in a direction for moving said gate from anopen to a closed posi tion, an upright shiftable toothed rack,‘ and means for shifting said rack to engage and dis engage di?erent teeth thereof with a part on chimney. If the operating motor for the forced draft fan should fail for any reason, such as the failure of the electric current, to produce the and movable with said gate for holding the gate draft necessary to properly maintain the ?re, the , inv diiferentmore or less open positions and for safety front gate will be automatically closed and releasing said gateto allow the gate to close. 4. A movable closure gate ‘for an openlfront heater and control Vmechanism for said’ gate comprising, guides atvopposite edges of said gate the safety smoke ?ue opened 50 as to provide for the discharge of smoke out of doors by natural draft, and prevent its escape into the house. On the other hand, danger from overheating is pre in which said gate is movable for closing said front, stationary toothed racks extending length vented by the closing of the front gate and, there by, the checking of the ?re under the control of wise in said guides, a shaft rotatably mounted‘on said gateand having pinions ?xed thereto and meshing with said racks, a springlarrnngedto rotatesaid , shaft ‘and pinions in adirectionto the thermostatic switch. The heater can be made of a size and form adapting it to beused in an ordinary ?replace and ensure proper operation of the ?re without smoking in a ?replace which close said gate; a shiftable toothed rack extend ing lengthwise adjacent one of saidlguides, means for shifting saidrack to engage said shaft'in different more orless, open positions of said. gate for holding thezgate from, closing, and means for shifting said rack to disengage said shaft for releasing said gatefor closing. may not function properly becauserof faulty de signof the same or its chimney. Furthermore, the front gate can be more or less closed and the heater used-as a stove and the ?re regulated by appropriate adjustments of the front gate. I claim as my invention: 1. A movable closure gate for an open-front heater and control mechanism for said gate com prising stationary upright toothed racks at op posite edges of said gate, a shaft rotatably mount 5. A movable closure, gate for anopen-front 30 heater and control mechanism for said gate com priSingLa toothed rack which is arranged length wise in the direction of movementof said gate ed, on said gate and having pinions ?xed thereto and meshing with said racks, an upright toothed and is shiftablle for engaging different teeth thereof with apart connected to and movable with said gate for holding the gate in different rack which is shiftable for engaging one or an other of its teeth with a part on and movable more or less vopen positions,_actuating means with said gate for holding said gate in diiferent for shifting said rackinto and out of holding engagement with said part forholding andre leasing the gate, and means'for closing said gate more or less open positions, and actuating means for moving said shiftable rack into and out of engagement with said part on the gate for hold when__released. ing and releasing the gate. ' 1 6. A portable ?re place comprising a?re box 2. A movable closure gate for an open-front heater and control mechanism for said gate com havingan open front, and a smoke flue leading prising, stationary upright toothed racks at op posite edges of said gate, a shaft rotatably mounted on said gate having pinions ?xed thereto . and meshing with said racks, a spring arranged openfront, a, devicegwhichnorma-lly releasably holdsvsaid gate open in opposition to force tend from the ?re box, a movable gate for closing said 45 ing to close the gate, a motor and a fan driven thereby for creating a forced draft through said to rotate said shaft and pinions in a direction smoke ?ue,,a safety smoke ?ue communicating for moving said gate toward a closed position, with said ?re box, ,adamper normally closing a holding device engageable With a part attached said safety flue, and means controlled by the ' to and movable with said gate in different posi—, -; speedof ‘said motor which retain said holding tions of the gate to hold the gate in said differ device in gate-holding position during normal ent positions against the closing action of said speed of the motor and which operate in response spring, and means for actuating said holding to _a predetermined reduction in thespeed of said device to release said gate and allow it to close. motor to actuate said holding device to release 3. A movable closure gate for an open-front; saidgateand allow it to close, and also to actu ate said damper to open saidsafety smoke ?ne. heater and control mechanism for said gate com‘ prising, stationary upright toothed racks at or) ' SAMUEL S. VINEBERG.