US1209544A - Refrigerator construction. - Google Patents

Description

T. P. BOLGER.

REFRIGERATOR CONSTRUCTION. 'APPLICATION HLED MAR.2.191s.

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`THOMAS r. Borana, or GLOUCESTER, MASSACHUSETTS.

nEFnIGEnATOR CONSTRUCTION.

, i "art to whichvit appertains to make'anduse 4the same.

The present invention relates to certain new and useful improvements in the construction of sheet metal refrigerators, an has for its object to provide a novel means for fastening the edges of the metal lining 'and outside metal covering in the door openving whereby a tight joint is 'obtained when the door isclosed and a continuous metal 2.0 wall for conducting heat from the outsider to thel inside of the refrigerator is avoided. Further objects of the invention are to provide a construction of this character which is simple andv inexpensive, which breaks up any possible air passage around the edge of the door., which securely fastens the edges of the sheet metal lining andcover without lbringing them together in such a manner `as to provide a continuous Vmetal B0 wall betweenthe outside and the inside of the refrigerator, and which does not interfere in any manner with the openingand closing of the door. A

With these and otherobjeets in view, the invention consists incertain novel' combinations and arrangements of thep'arts as will more fully appear as the description proceeds, )the novel features thereof being pointed out in the appended claims.

For "a full understanding Of the invention, reference is to be had-t0 `the following description and accompanying drawing, in

which i Figu through the front portion of a refrigerator constructed in accordance with :the "invenf-ti'on, the door thereof. beinggsh'own in ya closed position by solid lines'andI in an open. .positionby Vdotted lines. Fig. -2 is a detail the door. i'

toinr the following description and indi-y cated in allpithe Speccati-on of Letters Patent.

re 1 is a horizontal sectional view taken` at the hingedside'jofg.

ws ofthe drawingbylthe A Patenten nee. io, ioni.

Applicuimma Maren a, 1551s. serial Nn. 81,693.

Specifically describing the present ema .bodlment offthe invention, the numeral 1 designates the frame or' body. of the rei frigeratorasaid, frame beingformed of some good heatlnsulating material such `as wood,

4 and preferably being constructed with outer and inner walls having an air space between the same. The door frame 2 is also preferably formed of some good heat insulating material such as wood, the doorV being mounted ufpon hinges 3 so as to swing into and out of the door opening 4. This door opening 4 is formed with an outwardly facing annular shoulder 5, while the door 2 is .constructed with .an -annular flange 6 hav` ing'an opposed relation to the shoulder 5 of the door opening.

rlhe inside lining preferably what is known as a one-piece porcelain lining. This lining 7 is formed with a iange'S which projects into the doorl opening 4 and terminates in a comparatively narrow lip 9 fitting over the inner edge of the shoulder 5. The outside sheet metal lcovering 10 is vformed with a flange 11 which projects into the door opening 4 and-termi- 7 'of the refrigerator is a nates-in a-lip 12 fitting against the outside vportion ofthe shoulder. 5. The lip 9 of the inside lining 7, and the lip 12 of the outside covering 10 are both in the same plane, and both fit squarely against the shoulder 5, al-

though they are spaced from each other so as to avoid a continuous metal wall from the outside to the inside' of the refrigerator. A strip of irregular molding' 13 1s secured to the shoulder 5 and extends over the-lips 9 and 12 in such a manner asA to clamp vthem( secu-rely against the shoulder and protect them against injury. TheV fasteningvmembers Orscrews 14 which are employedfor securing the molding 13 in .position enter the shoulder 5 between the edges of the lips 9 and 12 and are spaced therefrom so as to prevent a continuous metal heat condaoting path-beingestablished through the sheet metal and screws. The vouter face of the molding `13 has a roundedv lip' 13 projecting from the inner side thereof, while the outer side thereof is provided'with a conrespondingly shaped groove or depression The, inner face of the .door 2 is covered "with a sheet metal liningJ 15 provided at the edges 'thereof -with` 'iianges 16 extending aroundthe edges of the door, Vand terminatling in lips 17 fitting against the door flange 6. In an analogous manner the outside covering 18.for the door 2 is formed with a peripheral flange 19 extending around the edge of the door and terminating in alip 20 which fits against the inner face of the door flange 6. The lips 17- and 20 have a spaced relation so as to prevent the estab? lishment of a continuous metal heat conduct-- ing wall between the outside and the inside of the refrigerator. A strip 21 of irregular molding is applied to the inner face of the D door flange 6 in such a manner as to clamp lthe sheet metal edges 17 'and 2O securely in position, the Afastening members or screws 22 entering the flange 6 between the sheet metal A l' lips 17 and 20 and being spaced therefrom. The molding 21 upon the iiange v0f the door has an opposed and complemental relation to the molding 13 which is applied to the shoulder of the door opening. This molding 21 isformed upon one side thereof with al longitudinal rib 21va adapted to enter the depression 13b of the molding 13, and at the opposite side thereof with a depression or groove 21b adapted to receive the rib 13n against and interlocks with the irregular molding 13 upon the shoulder 5 'of the door opening, thereby interrupting any possible air. passage around the edge of the door? and obtaining a tight joint between the door and the body -of the refrigerator. At the same time, it vwill be observed that there is no continuous metal wall between the inside of the refrigerator and the noutside vof the refrigerator, since the edges of the inside sheet metal lining members and outside sheet metal-covering members are clamped under-the stripsof irregular molding and held in a spaced relation from each other. This is quite important in the construction of sheet metal refrigerators, since' metal is an excellent conductor of heat, Aand where there is a contihuous metal wall between the outside and the inside of the refrigerator, heat is conducted into the refrigerator to such an extent as to very materially decrease the efficiency thereof. The effect of almost perfect insulation in the body 'of the refrigerator may be destroyed by a construction providing continuous metal -walls between the outside and inside of the refrigerator at the door opening.- With this constructionthe edges of the sheet metal are clamped securely in position in 'a very inexpensive manner and, at the same time, they are heldin a 4 spaced relation to each other. `The strips of A molding which are employed for clamping also constructed in` such ya manner as to interlock witheach other and break up any air ,passage around the edgeof the door. ln-

this-connection it will be noted that the inclination between the base of the groove 13b of the molding 13 and t'he ltop of the lip 13, at the hinge end of the door, is substantially o n the arc of a circle having the 'pivots'of the hinges 3 as a center to admit of the door opening and closin without binding.

f Havlng thus described the invention,l what I claim as new and desire to secure by Letters Patent, is :v-'

1. A refrigerator including a body having a door openig, a swingingdoor hinged to the body and adapted to close 'the door opening, a sheet metal lining applied to the body4 and having the edges thereof carried into the door openin a sheet metal outer covering applied to t ke body and also having the edges thereof carried into the door opening, strips of non-heat conducting molding applied to the sides of the door opening .and fitting over the edges of thesheet 4metal lining and, sheet metal outer covering, said edges being held in a spaced relation to each other so that there is no continuous metal wall between the outside andthe inside of `the refrigerator, and corresponding strips applied to the door for engagement with the strips of thel door opening to form a tight joint when the door is closed.

2. A refrigerator including a body having a door opening, a swinging door hingedto' the body and adapted to close thedoor openthe edges-of the sheet metal in position are ing, a sheet metal lining applied to the body and door andV having the edges thereof carried into the door opening and around the lyedgesof the door, respectively, a sheet metal- "outer covering applied to the body and door and ,having the edges thereof carried into theV door opening' and around the edges of the door, respectively, and spaced from the corresponding edges ofthe lining, and co1"- responding strips of non-heat conducting molding applied to the sides of the door opening and the edges of the door, respec- I tively, said strips holding theedges of the lining and the outer covering in a spaced relation to each other so that there is no continuous metal wall between the outside and the inside of the refrigerator, and engaging each other' to 'form a tight joint' when the door is closed. Y

3. A refrigerator including a body having a door openlng formed with an outwardly facing shoulder, a door -\.formed' with a flange, a sheet metal lining applied to the i body and door and formed with lips at the edges thereof fitting against the shoulder of the ldoor openingand the flange of the door, respectively, a sheet metal outer covering applied to the body and door and.l

provided at the edges thereof with lips italso ting against the shoulder of the door lopening and iange of the door, respectively, and spaced fromthe corresponding lips of the lining, .and corresponding strips ofnon-heat conducting molding applied to the shoulder of the door opening and -flange of the door, respectively, said strips engaging each other to form a tight oint when the door is closed and clamping the lips of the lining and outer covering in a spaced relation to each other so that there is no continuous metal wall between the outside andthe inside ofthe refrigerator. i

4. A refrigerator including a body having a door opening formed with an outwardly facing shoulder, a door formed with a flange, a sheet metal lining applied to the body and door and provided at the edges thereof with lips fitting against the shoulder of the door ing the lips of the lining and outer covering" in position and holding them in a spaced re- 'lation to prevent the formation of a continuous metal wall between the outside and the inside of the refrigerator, and the opposed faces vof the strips of molding being formed with corresponding ribs and grooves.

5. A refrigerator includinga body having a door opening formed Awith an outwardly facing shoulder, a door formed with a flange, a sheet metal lining applied to the body and door and having the edges thereof extended into the door openingto the shoulder and around the edges of the door to the flange, a

sheet metal outer covering applied to thel body and door and having the edges thereof extended into the door opening to the shoulder and around the edges of the door to the face of the flange, and corresponding strips of non-heat conducting molding applied to the shoulder vof the door opening and the.

face of the door flange so asl to 'secure the 'edges of the sheet metal lining and sheet metal outer covering in a spaced relation and prevent the formation of a continuous metal w'all between the outside and the inside of the refrigerator, said strips of molding upon the shoulder and door flange fitting against f each other to form a tight joint when'the door is closed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS P. BOLGER.

Witnesses: WILLIAM A. BOLGER, ARTHUR J. GRIMES.

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