US285199A - alexander - Google Patents

Description

.(No Model.)

J. ALEXANDER.

REFRIGERATOR.

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J'. ALEXANDER.

REFRIGERATOR.

No. 285,199. Patented Sept. 18, 1888.

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1 JOHN ALEXANDER, OF TORONTO, ONTARIO, CANADA.

REFRIGERATOR.

SPECIFICATION forming part of Letters Patent No. 285,199, dated September 18, 1883.

Application filed May8,1883. (No model.) v

To all whom it may concern:-

Be it known that I, JOHN ALEXANDER, a subject of the Queen of Great Britain, residing at the city of Toronto, in the county of York, in the Province of Ontario, Dominion of Canada, haveinvented certain new and useful Improvements in Refrigerators, of which the following is a specification.

My invention relates to that'class of refrigerators in which an open passage-way exists between the ice-chamber and provision-chamber, separate fiues for the escape of the warm airfromtheprovision-chamberbeingprovided; and the object of the invention is to construct a perfectlyyentilated refrigerator, the provision-chamber of which shall be absolutely dry.

It consists, first, in a rectangular hole through the bottom of the ice-chamber leading into the provision-chamber, and provided with a detachable cover resting on triangular supports placed at either end of the rectangular hole, so as to leave a space between the bottom and the edges of the cover for the free passage of the cold air, the triangular supports having grooves running from their apex to their base, which grooves connect with grooves made in the bottom on either side of the hole and connecting with an escape pipe, as hereinafter -n1ore particularly explained; secondly, in a ceiling to the provisionchamber slanting from the inner edges of the warm-air fiues toward the rectangular hole leading into the ice-chamber, the placing on the said ceiling, at either side of the hole, of strips extending longitudinally along the edges of the hole below the ceiling, so as to form a cushion to separate the warm air accumulating at the ceiling of the provision-chamber from the cold air desce'nding throughthe hole; thirdly, in providing an auxiliary cold-air passage made at the back of the icechamber at right angles to the warmair fiues, and protected by a strip projecting below the ceiling of the provision-chamber along the edge of the said auxiliary cold-air passage, so as to form a cushion to separate the warm air accumulated at the ceiling from the cold air descending through the auxiliary cold-air passage; fourthly, in providing a refrigerator having a rectangular hole in the icechamber protected by a slanting cover supported as described, an ice-rack arranged to support the ice above the bottom of the icechamber, and iceracks aroundthe sides of the ice-chamber, so as to keep the ice clear of the sides and leave side passages between the ice and sides of the chamber leading into the airchamber formed between the bottom ice-rack and the bottom of the ice-chamber; fifthly, in providing a refrigerator having an opening between the ice-chamber and provision-chamber, with a warm-air flue or fiues leading from the ceiling of the provision-chamber at a point above the cold air to a point at or about the top of the ice-chamber, from which point the air is permitted to escape through ahole made in the outer skin of the refrigerator; sixthly, in providing the warm-air fiues, constructed as stated,with an adjustable damper covering an opening leading intov the ice-chamber for the purpose of admitting, if desired, the warm air from the flue into the icechamber; seventhly, in providing a refrigerator having an open a of the ice-chamber for the purposeof supplying fresh air to the refrigerator.

Figure 1 is a sectional front view of my improved refrigerator. Fig. 2 is a cross-section of the same. my improved refrigerator with the top, front, and one end of the ice-chamber removed. As my invention relates to a class of refrigerators the construction of which is now well understood, it will not be necessary in this specification to'describe in detail the principle upon which they are constructed. I shall, therefore, merely confine myself to the parts constituting my improvements. I may, however, state that A is the ice-chamber, and B the provision-chamber,separatedby theboards O, which slant from the inner edge of the warm-air flue D, formed at each end of the ice-chamber, toward the rectangular hole E, which constitutes an opening between the two chambers A and B.

Inorder to prevent the. drippings from the melting ice falling intothe provision-chamber, I provide a cover, F, which is arched or hipped, .as shown, and rests upon the triangular supports G, placed at either end of the hole E. These supports G carry the cover F, so as to leave a clear open space between the Fig. 3 is a perspective view of boards 0 and the edges of the cover, 'in order through the hole N, made through the outer that the cold air in the ice-chamber maypass freely through the hole E into the provisionchamber.

a are grooves or channels made in the outer top edges of thetriangularsupportsG, leading from their apex to their base, and con-' necting with similar grooves or channels, I), made, as shown, in the strips H. These latter grooves connect with the escape-pipe d,which carries away the water collected in the grooves a and b.

H are strips placed one on each side of they hole E, and projecting below the ceiling of the provision-chamber formed by the boards 0. These'boards, as before mentioned, slant toward the "warmair flues, which slanting'directs any warm air which may accumulate at the ceiling of g the provision-chamber toward the warm air 'flu'es D, while the strips H- form, as it were, air'cushions "to'Separate the warm air at the oeiling fromthe cold air descending through thehole I is'a stripplaced near the back of the refrigerator and projectingbelow the ceiling of the provision chamber. This strip I forms the inside wall of the auxiliary cold-air 'passage I, which cold-air-passage isat right angles to thewarm-airflues 'D, and leads from the bottom of theice-rack J in theice-chamber to a "point below the level of the opening of the warm-air flue. The strip I in projecting-below the ceiling forms a cushion to separate the warm aircollected at thetop of the ceiling from the cold air entering through the cold-air passage J. The stripsH and I therefore prevent thecondensationwhich would otherwise take place were the two currents not separated by the cushions formed by the said strips.

J is a horizontal rack resting on and supported by the shelves J Theseshelves hold the rack above the boards Oyso as to-leave an air-space between thesaid bottom'and the ice carried by the rack.

Kare side racks extending from the top of the shelves J to the top of the icechamber A. These racks keep the ice clear from the sides of the refrigerator, leaving open spaces for the passage of the air down to the chamber formedbetween theboards G and rack J. It is therefore possible in my refrigerator to pack the ice-chamber tight, whilethe circulation willstill be maintained. A

It will be noticed on referenceto the drawings that the warm-air flues D extend up to a point near the top of the ice-chamber, thus separated from the said ice-chamber by the wall L. A series of holes are made through the wall L, communicating with the flue D. These holes are provided with a damper, M, so that the communication between the flue D and the exterior ofthe ice-chamber can be completely out off 5 or the holes may be opened, so as to admit the air from the flue into the ice-chamber. Vhen the dampers are closed, the warm air ascending the flues D will escape skin of the refrigerator.

0 is a hole made in the top of the ice-chamber,through which fresh air is admitted. WVhen the dampers M are closed, the fresh air admitted into the ice-chamber passes through the cold-air passages before mentioned into the provision-chamber B, thence up through the flues D, and out of the holes N. \Vhen the dampers M are open, a portion of the fresh air in the flues D will reenter the chamber A, and if theholes' N are closed by a damper all the air will re-enter the chamber A, so that complete circulation will be maintained; but I think it will generally be found preferable to permit the air to escape out of the refrigera tor after it has passed once through the icechamber.

What I claim as my invention is 1. In a refrigerator having a rectangular hole through the bottom of the ice-chamber leading into the provision chamber, two grooves or channels made in the bottom, one on each side of the rectangular hole and connected to an escapepipe, and two triangular supports, one at each end of the hole, grooves being made in the supports leading from their apex to the side grooves, in combination with a detachable cover arranged to fit and rest on the triangular supports and protect the provision-chamber from moisture, while permitting the free downward current of the cold air.

2. In a refrigerator having a hole made in the bottom of the ice-chamber leading into the provision-chamber for the passage of the cold air, and separate flues for the escape of the warm air accumulating at the ceiling of the provisionchamber, the combination of two strips placed one on each side of the hole and extending below the bottom into the provision chamber, thereby forming cushions to separate-the warm air at the ceiling of the provision-chamber from the cold' airdescending into it from the'ice-chamber.

3. 'In a refrigerator in which a central opening connects the ice-chamber with the provision-chamber, and having cold-air passages separate from the warm-airflues, and in which the ceiling of the provision-chamber slants from the mouth of the warm-air flue toward the said center opening, a cold air passage leading from the bottom of the icechamber into the provision-chamber at right angles to the warm-air flues, in combination with a strip extending along the side of the said cold-air passage below the ceiling of the provision chamber for the purpose of forming air-cushions to separate the warm air at the ceiling of the provisionchamber from the cold air descending through the said passage.

4. A refrigerator having an ice-chamber lo-' cated in the upper portion of the main boX andseparated from the provision-chamber by a partition inclining inward, and having central cold-air channel, and having also awarmair chamber leading from the PTOVlSIlOHzCllZhDlber, racks, as J K, adapted to prevent con I tact of the ice with the closed partition L and means for connecting or separating said warmair chamber and ice-chamber at will, as and for the purposes set forth.

5 5. In a refrigerator having a Warm-air flue leading from the ceiling of the provisionchamber to a hole through the outer skin of the refrigerator at a point near the top of the ice-chamber, the combination of an adjustable damper placed in the partition between the 10 ice-chamber and flue for the purpose of regulating the admission of the warm air from the flue into the ice-chamber, substantially as and for the purpose specified.

JOHN ALEXANDER,

Witnesses:

CHAS. C. BALDWIN, DONALD O. RIDOUT.

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