USRE17434E - Refrigerating apparatus - Google Patents

Description

Sept. 17, 1929. J. G. KING REFRIGERATING APPARATUS Original Filed Sept. 26, 1923 n; v l

y x W In UEHTU? Jesse 521G173 Ber-5 5 a i155 m Reissued Sept. 17, 1929 UNITED STATES PATENT OFFICE.

JESSE G. KING, OE DAYTON, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO FRIGID- .AIIRE CORPORATION, A CORPORATION OF DELAWARE REFRIGERATING APPARATUS Original No. 1,588,379, dated June 8, 1926, Serial No; 664,810, filed September 26, 1923. Application for V reissue filed September 30, '1927. Serial No. 223,197.

This invention relates to refrigerating apparatus and particularly to )devices for freesing small blocks of ice in household refrigerating cabinets.

In refrigerating apparatus of this type it is usual to provide afreezing space or chamber having one ormore openings through which trays containing water to be frozen may be inserted in the chamber. These trays are usually in the form of relatively shallow open-top pans divided into a plurality of cells or ice compartments by crossed partitions giving a grid-like or checker-board appearance to the pans when viewed from above. Each tray is usually covered, when in the freezing chamber, by a shield, forming a part of the evaporator, which prevents water from dripping into the trays, for example when the evaporator is defrosted. These shields are preferably, but not necessarily, in the form of sleeves completely surrounding the trays and forming pockets within which the trays are placed. The sleeves or pockets referred to may be surrounded by refrigerant circulating-conduits forming a part of the evaporator, 'or immersed in brine, or cooled by the evaporator in any suitable manner. The front of the freezing space or chamber maybe closed by a wall in which the openings referred to are formed, and this wall mayror may not be spaced from the shields.

In operation water is .apt to condense on and run down the wall, and defrosting water is apt to drip from the front edges of the shields or sleeves, and thus get into the trays. It is one of the objects of this invention to prevent this condensed water. from entering the ice pans, since it may contaminate the ice, or overflow and freeze the pan to the sleeve. i In case the ice pan freezes to the sleeve by reason .of the cells having received so much water that it overflows when congelation begins, or if for any other reason ice 1s formed within ithevsleeve in such position as to ob struct the withdrawal of the ice tray, breakage ofthetray handle connections to the pan sis apt to occurswhen' an attemptis madeto withdraw the tray .in order tdharvest the ice.

Another object of this inventionis to enable In the accompanying drawings, Fig. 1 is a vertical section through the refrigerating compartment of a refrigerator cabinet exposing the refrigerating unit in side elevation, certain portions havlng been broken away to disclose the construction of essential features of this invention; and Fig. 2 is a horizontal section through'a fragment of a brine tank, and a cover plate, disclosing a fragment of an ice trayin plan except that parts thereof are broken away. I

In Fig. 1 the back of the outer shell or casing of a refrigerating cabinet is indicated by 10, the top of said shell or casing by 11, the front by .12, and the door of the refrigerating compartment by-13. The front frame structure isshown at 14; 15 indicates cork board insulation cemented to the sheet metal lining 16 of the compartment and spaced from the casing to form an air space 17; 18 is a chan 'ing back. Said channel bars sustain the bolts 20 which extend downward through holes in the web of the channel and are suspended by their heads from said web. These bolts penetrate the cork insulation and the compartment lining; their lower threaded ends are passed through cars 21 on metallic straps or stirrups 22, which are suspended by nuts 23 on the ends of the bolts below said ears, while spacing sleeves 2 1 on the bolts between the stirrups and the ceiling of the compartment prevent any. upward I movement. The suspended stirrups constitute a cradle or bracket forpositioning the refrigerating unit in the refrigerating compartment with ample space for permitting air to circulate around it.

.[n the embodiment illustrated a brine tank is indicated by numeral 25. Within the brine tank, it will be understood, the usual expansion coil is enclosed. The front wall of the brine tank is indicated at 26. Extending inhave open front ends and are immersed in brine.

Ice trays having arelatively shallow pan 29 fit loosely within the pockets-28. The pans are divided into a number of ice compartments 30 by the grid-like intersecting partitions 31. Spaced from the front of the brine tank between it and the door 13, is a front plate 32 forming the front wall of the freezing chamber and preventing access to the 111- terior of the chamber except to enable the ice trays to be inserted and removed. The front plate may he of metal coated with a porcelain or vitreous enamel, and suitably embossed as at 33 in that part that is opposite the open ends of the ockets 28. In the embossed part 33 are orifices 34 registering with the open ends of pockets 28 and sufiiciently large to permit the trays 29 to .be passed through them into the pockets '28 or withdrawn from said pockets through the open- 1I10S.

Soldered or welded to the front end of each ice panare two bosses 35, which are thus secured to the pan in such manner that no obstruction is present on the inside to interfere with removal of ice. The bosses 35 are preferably of metal and may be of spool-like formation having their inner flanged ends secured to the tray by a mass of soldering or welding metal as indicated at 36. Both bosses are drilled and countersunk and the drilled holes threaded as at 37. A flanged tubular anchor bolt 38 with a slotted ;head seated in the countersink is threaded into the hole in each boss and a slender, fiat-headed machine screw 38 is threaded into the center of each anchor bolt. The screws 38 pass through countersunk holes in the flanges 39 of a looped handle 40, through a stop and cover plate 41 and through a separate spacer block 42, preferably of heat insulating material such as wood. inserted between the metallic stop and cover plate 41 and the metallic boss 35. The stop and cover plate 41 is preferably dished, as shown, and its flange bears upon the front 33 when the tray is pushed into the sleeve. It is of a size and shape to cover the opening 34, preferably has the appearance of a drawer or tray front and serves not only to close the opening but also as a stop and gauge to determine the position of the ice pan with respect to the pocket andth e front wall 33.

Since the screws 38 are slender, they are of small heat conducting capacity, and since the spacers 42 are of insulating material, the whole fastening means can conduct very little heat from the handle 40 and tray front 41 to the tray. Thus the handleand tray front will not ordinarily become-frosted.

It will beobserved that in the drawings the front end of the pan does not extend beyond, nor even flush with the front of the sleeve 27, but occupies a position well within the pocket 28. In the position shown condensed water or water formed by melting frost that may drip from the front of the sleeve will not run into the ice pan, but will drip across the space in front thereof. The bosses 35 and spacing blocks 42 are of such length as to space the front of the ice pan from the stop ,plate 41 such a distance that when the stop plate engages the front 33, the ice pan will be housed entirely within the pocket. Moreover the bosses andspacing blocks are so shaped and so located with respect to the sleeve 27' that any condensed water which may happen to drip upon them willimmediately drain off and can neither flow into the pan nor lodge between the spacing means and sleeve. This preventing of lodgment between the spacing means and sleeve effectively prevents freezing of the pan to the sleeve through the freezing of any condensed water. In building refrigerator cabinets and installing the refrigerating unit it is likely to happen that the space between the front plate 33 and the front of the brine tank will not always be the same in each of several pieces of apparatus. By spacing said stop plates 41 from the front of the ice trays a distance greater than the distance between the front plate 33 and thefront 26 of the brine tank that is likely to exist in any refrigerator, the result will be that the front end of the ice pans will always be well within the pockets 28, in any installation of one type when the stop plate 41 is pushed against the front plate 33. Thus, by no untoward accident in the course of manufacture will any refrigerating apparatus of the same type have the ice pan in position to receive the drip of condensed water or melted frost from the edges of the sleeves or from the front wall of the brine tank when the handle is pushed in.

Although in Fig. 1 the invention is illustrated as applied to a refrigerating unit equipped with a brine tank, it will be obvious, that it is also applicable to such a unit where the expanding coil is open, ornot immersed in brine. The numeral 26 in Fig. 2 may be assumed to indicate a cover plate in the latter type of unit instead of the front wall of a brine tank, and the sleeve or tubular member 27 as extending rearward within the turns of the expansion coil.

In operation the cells or compartments 30 of the icepan will be charged with water and the tray pushed into within pocket 28. the tray may be withdrawn and the ice or so much as may be required removed from the pan. Should the tray be frozen to the walls of the pocket by reason of overflow of water from the pan or the freezing of water of condensation within the front opening of the pocket, it is possible that the bolts or screws 38, which are the weakest parts of the connecting links between the handle and the tray, may become broken by the force exerted in attempting to withdraw the tray. If so, they place with the pan seated After the water has frozen,

of fastening have been'used.

may be readily replaced after first unscrewing the anchor bolt 38 by means ofa spanner. A new anchor bolt and machine screw may then be readil fitted, avoiding the necessity of sending the tray to the factory or to a repair shop as has been necessary where other forms Although I have described and shown a preferred embodiment of my invention, it will be apparent that modifications thereof may be made within the definition 'of the appended claims without departing from the principles of the invention. i

What I claim and desire to secure byLetters Patent of the United States is:

l. Inqa refrigerating apparatus, a refrig crating unit, a pocket-forming sleeve asso ciated therewith, a tray for receiving'water to be frozen adapted to fit within the sleeve, a front plate spaced from the entrance of the sleeve, said front plate having a tray-admitting opening. registering with the sleeve, a handle connected to the tray and a sto se cured to the handle for engaging the rent plate when the tray is-in proper position within the sleeve, the distance between the front plate engaging portion of the stop and the front of the tray being greater than the distance between the front plate and the front end of said sleeve.

2. In a refrigerating apparatus, a refrigerating unit, a pocket-forming sleeve associated therewith, a'tray for receiving water to be frozen adapted to fit within the pocket, a front plate having a tray-admitting opening registering with the sleeve, a handle carried by said tray for moving the same into and for withdrawing the same-from said sleeve, and a stop movable with said handle and tray and arranged to. engage the front plate when the tray is in proper position within the sleeve, 'the distance between the front plate engaging portion of the stop and the front of the tray being greater than the distance. between the front plate and the front end of said sleeve.

3. In a refrigerating apparatus, a refrigcrating unit equipped with a pocket sleeve, an ice tray adapted to fit within the pocket, a boss secured to the front of the tray, a han clle, a screw securing the handle to the boss, a separable heat insulating spacingblock surrounding the screwinterposed'betweenthe handle and boss, and a sto plate movable with said ice tray and engaging a fixed member to limit the entrance of said tray into said pocket,

4. In a refrigerating apparatus, acabinet havinga refrigerating compartment, a refrigerating unit equipped with a pocketforming sleeve installed avithin said compartment, a front plate spaced from the front of said unit, said front plate having on .opening registering with the front end of-the' sleeve; an ice tray adapted to fit within the sleeve, a

handle, a boss on the front ofthe tray, an externally and internally threaded anchor bolt secured in the boss a removable spacing 5. Refrigerating apparatus including in combination, a cooling device having a freezmg chamber, the freezing chamber having an 7 opening, an ice-making container adapted to be inserted in the chamber through the opening, and a closure for the opening secured to the container and spaced therefrom ,by isolated spacers of insulating material.

6. Refrigerating apparatus including in combination, a cooling device having a freezing'chamber, the freezing chamber having an opening, an ice-makingcontainer adapted to be inserted in the chamber through the open-' ing, and a closure for the opening secu'red'to the container, said closure acting as a stop to position the container in the chamber with said end-away from the opening.

7. Refrigerating apparatus including in eombination, a freezing. chamber having a wall, said wall having an opening, an ice-making container adapted to be inserted in the chamber through said opening, a stop secured tothe container and spaced from one end thereof, and adapted to cooperate, with the, wall to position the container in the chamber with its adjacent end away from the wall.

8. Refrigerating apparatus including means providing a freezing space and a shield, an ice-making container adapted to be placed in the freezing space beneath the shield," the container beingfshorter than the V shield, and means projecting from one end of the container bywhich it may be placed in and-withdrawn from the freezing space, said means including a stop spaced from said end of the container, said refrigerating apparatus including an abutment for cooperating with the stop r positioning said end of the container betweenthe ends of the shield when the container is placed inthe freezing space.

9; Refrigerating apparatus 7 means providin a freezing; space I and .a

including sleeve for receivlng-anice-making container,

an ice-making container adapted to be placed in the sleeve, the container being shorter than the sleeve, and means projecting from one end of the container by which it may be placed in and withdrawn from the sleeve, said means including a sto spaced from said end ofthe containensai refrigerating apparatus including an abutment for cooperat-- ing with the stop to position said end of the container betweenth'eends of the sleeve when the'container placed therein. 1 I Y Refrigerating apparatus including means providing a freezing space and a shield, an ice-making container adapted to be placed in the freezing space beneath the shield, an ice-making container adapted to shield, a handle attached to the container and spaced from one end thereof, and a stop associated with the handle, said refrigerating apparatus including an abutment for cooperating with the stop to position the adjacent end of the container between the ends of the shield when the container is placed in the freezing space.

11. Refrigerating apparatus including in combination, a cooling device having a freezing chamber, the freezing chamber having an opening, an ice-making container adapted to be inserted in the chamber-through the opening, a handle for the container, a skeleton structure connecting the handle to the container and spacing it from one end thereof, and a stop associated with the handle, said refrigerating apparatus including an abutment for cooperating with the stop to position the container in the chamber with said end away from the opening.

12. Refrigerating apparatus including in combination, a cooling device having a freezing chamber, the freezing chamber having an opening, an ice-making container adapted to be-inserted in the chamber through the opening, a stop for the container, and a skeleton structureconnecting' the'sto to the container and spacingit from one en thereof, said refrigeratingapparatus including an abutment for cooperating with the stop to position the container in the chamber with said end away from the opening.

13. Refrigerating apparatus including incombination, a cooling device having a freezing chamber, the freezing chamber having an opening, an ice-making container adapted to be inserted in the chamber through the opening, a closure for the opening, and a skeleton structure connecting the closure to the container and spacing it therefrom.

14. Refrigerating apparatus including in combination a refrigerating element provided with a freezing 'chamber having an opening and a refrigerated surface exposed to air located above the freezin chamber, an icemaking-container adapted to be inserted in the chamber through the opening, a stop for the container, means connecting the stop to the container andspacing the stop from one end thereof, said means being so formed as to -perm it-the.passage of condensed water from said surface between the stop and the container, and said refrigerating apparatus including an abutment for cooperating with the stop to position said end of the container" within the freezing chamber remote from the opening.

15. Refrigerating apparatus inclnding in combination a refrigerating element provided with a freezing chamber having an'opening and a refrigerated surface exposed to air located above the freezing chamber, an icemaking container adapted to be inserted in the chamber through the opening, a stop for the container, means connecting the stop to the container and spacing the stop from one end thereof, said means being so formed and so located as to prevent lodgment of conrefrigerated surface exposed to air located above the freezing chamber, an ice-making container adapted to be'inserted in the chamber through the opening, a closure for the opening and means securing the closure to the container and spacing the closure therefrom, said means beingso formed as to permit the passage of water from the refrigerated surface between the closure and the container.

17. Refrigeratin apparatus including in combination a coo ing device provided with.

a freezing chamber having an opening and a refrigerated surface exposedto air located above the freezing chamber, an ice-making container adapted to be inserted in the chamber through the opening, a closure for the opening, and means securing the closure to the container and spacing the closure therefrom, said means being so formed and so located as to prevent lodgmentof condensed water dripping from the refrigerated surface between the closure and the container.

18. Refrigerating apparatus including in combination a refrigerating element provided with a freezing chamber having an opening and a refrigerated .surface exposed to air located above the freezing chamber, an ice-making container adapted to be inserted in the chamber through the opening, a stop for the container, means connectingthe stop to the container and spacing the stop from one end thereof, said means being so formed asto drain away from the container any Water deposited on said means from said surface.

19. Refrigerating apparatus including in I combination a refrigerating element provided with a freezing chamber having an opening and a refrigerated surface exposed to air located above the freezing chamber, an ice-making containeriadapt'ed to be inserted in the chamber through the opening, a stop for the container, means connecting the stop to the cont-alner and spacing the stop from a one end thereof, said means being so formed as to permit condensed water to drip. freely between the Stop and the container.

20. Refrigerating apparatus including in combination a refrigerating element provided With a freezing chamber and a refrigerated surface exposed to air located above the freezlng chamber, a Wall in frontrof the freezing chamber and said surface, the Wall JESSE Gr. KING.

CERTIFICATE or CORRECTION.

Reissue Patent No. 17,434.

JE'SSE G. KING.

d that error appears in the print above numbered patent requiring correction as folingvst.5 laim 4 for the word "on" read "an"; page 4, lines 5, an c d the container ds "an ice-making container adapted to" and insert lnstea ,d with b i ng shorter than'said"; and that the said Letters Patent should be ten case these corrections therein that the same may conform to the record of the in the Patent Office.

Signed and sealed this It is hereby certifie 22nd day of October, A. D. 1929.

M. J. Moore,

(S 1) Acting Commissioner of Patents.

Granted September 17, 1929, to

ed specification of the Page 3, line 63, claim 10, strike out the 20. Refrigerating apparatus including in combination a refrigerating element provided With a freezing chamber and a refrigerated surface exposed to air located above the freezlng chamber, a Wall in frontrof the freezing chamber and said surface, the Wall JESSE Gr. KING.

CERTIFICATE or CORRECTION.

Reissue Patent No. 17,434.

JE'SSE G. KING.

d that error appears in the print reb certifie It is he y correction as foliow ve numbered patent requiring l tor the word "on" read "an"; page 4, lines 5, and 6, cla1n:l the container niords "an ice-making container adapted to" and insert lnstea la b read with being shorter than'said"; and that the said Letters Patent shou e case these corrections therein that the same may conform to the record of the in the Patent Office.

Signed and sealed this 22nd day of October, A. D. 1929.

M. J. Moore,

(S 1) Acting Commissioner of Patents.

Granted September 17, 1929, to

ed specification of the Page 3, line 63, claim 10, strike out the

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