US1815848A - Counterbalance for stove doors - Google Patents

Description

July 21, 1931. c E. KLEIN COUNTERBALANCE FOR STOVE DOORS 7 Filed Feb. 6, 1930 2 Sheets-Sheet 1 v INVENTOR 0a rlflfflezn .ATTORNEY Mwi.

July 21, 1931. c. E. KL;EIN

CQUNTERBALANCE FOR STOVE DOORS Filed Feb. 6, 1930 ,2 Sheets-Sheet 2 M n z w w 4 a wfiNEss ATTORNEY Patented July 21,'

CARD 1:. KLEIN, OF'TVWILLOW GROVE, PENNSYLVANIA I j onmmmmwm FOR STOVE Doom irivention reli-tesfto an device for mm 7 tetiiriiig" 8t door of}: stove in' closed position tending operip v 3 5. An object of the in ventioniisthe provision of 'aj device for'ihaiiltainihg a'door'elosed or teiidfng c losethefdoor when it is open'in v I elos'e' the door wh n the door is which :i levef pivottlly mouiited intermediate fis'en-dsis held if: ai predetelniined position link do wiivv'e rdlyithet the elm'will force the door into a'elosedfposition;

fiiithe' robjeet "ithe invention isthe pro- 4 vision ;of a doori h-avin depending arms Whiohi are eurvedfoutwardljr and then Vi n- Wardly ind coi ineeted bygmeaiis oif'links to he is which 1 are pivemuy mounted -o1'1 the walls of the even; a: weight or spring be} g 'cooperatively gssoeiat d with the" fiee d} of e'aelr lev'eif tending" {to move the arm 8 we; positi elo's'ed operative p'osi-tfliomie This"invention Will be bestnnderstood from e, ofis'ide'ration 6f the following detailed dei- 1325 'seription; in View of the 'aeoonipanying drawings'vforming a part of the specifie'ation;

nevertheless it is to be linderstoodthgtt the i not oonfined to the discloslii'ey being susceptible of such hangesand modifio-efieations which Shani define no material deperture from the salient features of the if vent/ion as exp essed the appended claims. eiiewingszi" j "Figiire I is a fragmentary viewin elevation oi thefearrof stove d or howi my in:- vf'eritioii applied thereto.

parts-i 11 an operative position for maintainingthe'doorclosed. f'

" Figure 3 is a; siniil'et'ij section? showing a slightlyino'dified form of the-- inventionie- Figur 14' is a vertical section of a'modified form of he device for maintaining the stove door' olfosed rj f 8 J F-igore is'a veyticalsectim of afu rther nrodifiedzformof the invention. I

I Figureo is e vertiealjseetion of alstillfiirthermodificationoftheinventioh;

I *Refeii'ing' moreparticnlarly to the difaLW- iege; to'designetes a 1 stove having a door fenfoiei ngermifiiofthe door by means of a onfwh e're willjforce the door wits Figs; Land 2 has follows: When the door e 2 's veitieai fs'ectioii showving the frame ll mounted zit the front acrossthe lower end of which is extended a bar 12'. A

Curved portion 13 is formed at the upper inner edge of the bar to provide 2; rest as will be g neser'itly explained.

Curved arms" 14* extend from the lower edge of door 15 and are formed with curved seats; which rest upon the curved portion 18 of the bar 12.

thirdly; as at 17, and then inwardly, as" 5st 18'.

A li'fik 20 has or'ie end pivoted upon a rod 19 which is carried by hearings in the free ends 18 of the arms 14. 'Theother end of the link is connected to the outer endof a lever pivotedat 26', upon an opposite side wall 27 of the stove. 8 1 V The free end of the lever 25 is'provided with alink 29 Whiehreeeives' the lower ends [of sprihgsBO Whieh aresecur'ed, at 31*," to a side Wall of a stove; The springsmay be enclosed Within ea'sin'gs formed in the oven or they may be mounted exteriorly of the stove. p 8 The operation of the device shown in 15 is moved outwardly the curved poi'tioii I4 's'wirigswupon the curved portion 13 and the bar 12, thesem'embers' thereby acting, as a hinge forthedooi'. Asthe Wardly' the free ends 18 of the arms 14 nriove upwardly until they reach the, stop 50.- d The links 20 are likewise Carried upwardly and moved toward a" horizontal position While the inner end of the leve 25 is moved above thehorizonta' l plane and at an 'angIe to the normal horizontal position of the lever 25. The 'OPPOSiGGEGIld oi the lever is moved dowh- Each rm, as shown at 1 6',

is; extended downwardly; then curved out door swings outweirdly against the tension of the springs 30.

'Whenthe door is released the springs will move the lever 25 to its normal inoperative position and cause the link 20 to move the arm 14150 the position shown F ZWhence the spying will aid iii maintaining the door The modified form shown in F 3 eon-i tains' al l' the essential elements of the struc- I tureidisc'lose'd in Fig. 2 except that aweight I 49 is employed-ilisteacl ofthe springs The lever 40 is pivoted at 41 upon the side i 2 mounted upon a rod 56 carriedby the curved 1 wall 27 of the stove and has one end 42 at 48 upon a side wall of the stove. This construction also includes a link 40 and a pair of levers and 47 upon the opposite side walls of the stove.

. The operation of the deviceshown in Fig. 3 is as follows: The door 15 is moved outwardly from the frame 11 so'that the curved portion of the arm 14 will ride over the curved'seat of the bar 12,- thereby causing the portion 17 of the arm, the link 20, the levers 40 and 47, to be moved to the dotted line position so that the weight 49 will be elevating tending to close the door 15 at all times and for maintaining the door in snug relation with the outer face of the frame 11.

,Referring more particularly to Fig. 4 it will be seen that a modified form ofthe invention is disclosed in which links 55 are arms 57 formed at the bottom of the door 58, which normally is in operative position within a fr'ame'59 of the door of the stove 60.

A lever 61 is pivoted at 62'on a side wall of the stove, while the opposite end is pivoted at 68 to the free end of the link 55. A lever 64 is pivoted at 65 onaside wall of the stove 60 and a link 66 connects the lever 64 with the j lever61, as shown at 67 and 68. A weight 69 is secured'to the outer free endof the lever 64. v f

The operation of the, device shown in Fig.

i 4 is as follows The door 58 rests upon a seat 70 formed at the upper 'end of the bracket- 71 and is adapted to swing on said seat to an open position. Whenthe door is moved downwardly the link 55 is moved inwardly and upwardly, thereby raising the levers 61 and 64 and the weight 69: so that the weight. will tend to close the door when it is opened. When the door is released, weight 69 will descend, thereby moving the levers 61 and 64-to the position shown in Fig. 4. I In the modification disclosed inFig. 5 the door 72 is mounted for swinging movement on the member 7 3 and a pair of links 74 are con' nected to the downwardly projecting arms 'the downwardly projecting'arm 75. l When the bar 7 2 is moved outwardly the arms 5 move upwardly, forcing the links 74 of the springs 80. These springs tend at all times to close the door so that when said door is released the lever 77 will be pulled downwardly by said springs and move the door into snug engagement with the outer wall of the frame84 which embraces the opening at the front of the stove.

- Another modified form of the invention is.

disclosed in Fig. 6, and the door- 85 is mountedfor swinging movement on a support 86 which is similar in construction to the form described above. Arms 87 project downwardly from oppositeends of the bottom portion of the door and carry-a rod 88 which extends across the bottom of the doorrin a manner similar to the disposition of therod 19 disclosed; in Figure 1.

A lever'89 is pivoted at of the stove 91 and has its outer free end connected with springs 92 secured at 93 to a side wall of the stove. The outer end of-the lever adjacent the door 85 is curved downwardly as shown at 94, and is provided with a horizontal slot 95 to receive the rod 88 When the door 85 is swung outwardly on Y on a sidewall its hinged portion, the arms-87 are moved inwardly and upwardly, thereby moving the rod 88 through the slot and elevating the portion 95 of the lever 89. The opposite end of the lever is moved downwardly against the tension of the springs 92. for restraining downward movement of theinner freeend of the lever, thereby tending to'move the door 85 toits closed position; When said door is released the springs will come inte play for actuating the lever 89 and thus move the door insnug relation with the outer wall of the frame of the door. I

1. Ina stove, a door frame, axbar carried by the frame, a door having a seat to receive the bar for pivotally supporting the door, the door having a curved arm extending inwardly from the door, a lever pivotallymounted intermediate the ends and normally lying in a horizontalplane, a link connecting the free endof the arm to one end of the lever,and means connected with the other end of -thelever and resisting movement of the lever, the lever and linkco operating to retain the seat of the door on the bar. 7 V r f r 2. In astove, a door frame, a bar carried by .the frame, a door having a seatto receive the bar for pivotally supporting the door, a pair of-arms curvedoutwardly and inwardly from the lower end of the door and-having a free end extending beyond the confines of the frame, horizontally disposed levers pivotally'mounted intermediate the ends thereof on the stove, a rod carried by the arms, a

link pivoted at one end on the rod, the other end of each link being pivotallyconnected V of the door on the bar.

door on the bar.

, 3. In a stove,adoor frame, a door mountedfor swinging movement on the frame, arms projecting downwardly from the lower edge a rod supported bythe arms, a, o

of the door, 7 link pivotally mounted at one end on the rod, a lever pivotally mounted on the stove and having one end pivotally connected with the other end of the link, andmea'ns connected With-the lever for restraining movement of .said lever When'the door is opened, "and for returning the doorvto closed position, the lever and link co-operating to retain the seat CARL E. KLEINQ:

I so,

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