US1380188A - Refrigerator - Google Patents

Description

R. K. BURRITT.

REFRIGERATOR.

APPLICATION FILED FEB-13.1919.

1,380, 188. Patented May 31, 1921.

5 SHEETS-SHEET I.

I lllllllllb I'll)- R. K. BURRITT.

REFRIGERATOR. A

' APPLICATIUN FILED FEB.13. 1919.

Patented May 31,1921.

R. K. BURRITT.

REFRIGERATOR.

APPLICATION FILED FEB. 13, 1919.

1,380, 188. Patented May 31, 1921.

5 SHEETSSHEET 3.

r R. K. BURRITT.

REFRIGERATOR.

APPLICATlON men FEB-13, law.

1380;188. Patented May 31,1921.

5 SHEETS-SHEET 4.

R. K. BURRITT-v REFRIGERATOR.

APPLlCATlON FlLED FEB- 13. 1819.

1, 88, 188. Patented May 31,1921.

5 SHEETS-SHEET 5.

JZZZFZJWZZ $2 IAAA'AQL' wow? UNITED STATES PATENT orFlc-E.

RAYMOND x. suamrr, or sntisnau, aarzom.

REFRIGERATOR.

assoass.

To all whom it may 001mm Be it known that RAYMOND K. Bonnrrr, a

citizen-of the United States of America, re-

I siding at Seligman, in the county of Yaraps; and State of Arizona, has invented ncwand useful Improvements in Refrigerstore, or which the followmg is a specification. Y

Thepurpose of the invention is to pro-.

videfa cooling or refrigerating apparatus for causing a circulation of air and carrying a tempering agent for cool ng the air and the air being taken in at the top of the tank heat, it rises and is caused to enter a flue by means of which it is directed around the -compartment of the tempering agent and discharged from the bottom of the flue. The apparatus by which the invention is carried intoefi'ect has means for supporting the. articles to be cooled above the point of discharge of the air from the flue and the 1 air thus rising extracts heat from the art-icles, passing into the flue in its heated state and being discharged from the flue after the extraction of the heat. Means is provided in connection with the apparatus for confining the circulation of air to certain parts of the apparatus causing the circulation to take place throughout the apparatus and the aiticles to be cooied'or be kept cool are carried upon suitable trays removable individually from the apparatus as a whole. Thus when it is necessary to move any part or portion of the articles, only that part of the apparatus wherein they are contained is opened and thereby the'warm air admitted from the outside 'is'reduced to a minimum.

In illustrating and describing the invention a specific embodiment is adhered to but this embodiment of invention-is not to be restricted. The right is reserved to make such changes or alterations as actual reduction to practice may suggest, in so far as such changes or alterations are compatible in spirit with the annexed claims. The same numerals of. reference designatethe same. parts throughout the several figures of the,

drawings, wherein:

Figure 1 1s a front perspective View of the apparatus embodying the invention,

specification of Letters Patent.

employed in conjunction with Patented May 31, 1921.

Application filed February 13, 1918. Serial Ho. 276,703.

Fig. 2 is a rear perspective'view of the structure of Fig. 1.

. Fig. 3 is a central vertical sectional view of the structure shown in either Fig. 1 or 2.

F g. 4 Isa section on the line 4-4 of Fig. 3.

F g. 5 is a section on the line 55 of Fig. 3.

F g.61s asection on the line 6-6 of Fig. 3.

F g. 7 isa section on the line 7-7 of Fig. 3.

F g. 8 1s a. section on the line 88 of Fig. 3.

Fig. 9 is a section on the line 9-9 of Fig. 3.

Fig. 10 is a section on the line 10--.1O of Fig. 3.

Fig. 11 is a perspective View of one of the display trays used in conj-unction with the apparatus.

Fig. 12 is a detail perspective view showing the tray slide.

Fig. 13' is a detail perspective view showing one of the longitudinal edges of the tray which engages the said slide.

Fig. 14 is a perspective view of one of the blocks used for shutting ofi the circulation of air in certain parts of the apparatus.

Fig. 15 is a perspective vieu of a removable division plate used for confining the circulation of air to a certain part' of the apparatus.

Fig. 16 is a central vertical sectional View through a modified form of apparatus in which the tempering agent is carried in a compartment or tank centrally disposed in the apparatus.

Fig. 17 is a section on the line 17-17 of Fig. 16.

Fig. 18 is a perspective view of the tank the apparatus illustrated in Fig. 16.

As shown, the invention .is employed in conjunctionwith a show or display case for perishable commodities. This display case, a suitable .form of which is shcwn in Fig. l, is divided into sections 1, 2 and 3, the sections 2 and 3 having glass tops and glass fronts, so that their contents may be visible from the outside. The sections 1 of the case constitute the refrigerating sections and for that'purpose are closed. Each re. fri'gerating or cooling section 1 constitutes a compartment in which a tank 4 is carried, access being had to this tank by means of a pull out plug. 5 equipped with a suitable hand grip. The tank as designed to carry a tempering agent and this tempering agent is preferably a mixture of crushed ice and salt, this mixture being inserted through lying on the top of the tanks l. these mouth portions 8 communicating with relatively narrow body portions 9 lying against the sides of the tanks and communicating with air spaces (5 existing at the bottom of the tanks. with which air spaces discharge months 9 communicate.

These discharge mouths 5) open into a compartment 10 formed at the bottom of the *ase as a whole and' extending throughout the length thereof. the bottom 11 of the. ase

forming the bottom of the compartment 10 p and the bottom 12 of the display sections 2 and 3 forming the top of this compartment.

The bottoms of the tanks 4 are substantially level with the bottom 12 and the air space 6 below the tanks thus occurs at a lower level than the bottom 12 and the side walls defining these air spaces (3 are formed with openings 13 by means of which air may pass from this space into the compartment 10 and vice versa.

Below each tank 4 there is carried a sub. tank 14 between which and its attendant tankt communication is effected by means of a 1 .pe 15. The purpose of these pipes 15 is to permit the brine formed in the tanks 1 to pass to the tanks 15 from which it may be dramed by the drain cocks 16 which have ----appropriate connections with the tanks 14.

Below each tank 15 there is carried a tray 17, these t ays having bottom outlets l8 discharging into waste outlets 19 carried in the bottom 11. The moisture thus formed on the outside of the tanks 4 and ll may be caught by these drip pans or trays 17 and discharged through the waste outlets 19.

Division walls 20 define the section 3 and divide it from the two sections 2 and division walls 21 likewise divide the sections 2 from the sections 1. In each of the sections 2 there is carried a plurality of display trays 22 formed with reticulated bottoms. as shown. having their side edges connected with T-bars 23 which in turn carry rails 24:

,slidably engaging tray slides 25 mounted on the walls 20 and 21 respectively at specified distances one above the other, so that the trays 23 may be in superimposed relation and spaced uniformly apart. lach tray 22 is formed with an upstanding back plate 26 and the trays may thus be placed in the case in their respective sections one above the other and employed and used the ame as drawers. each tray being secured in position in the case by means of suitable latch members 27. It will thus be observed that the articles or commodities carried in any one tray may be readily removed by withdrawing that particular tray and thus the only entrance outside air can have to the interior of the apparatus is through the opening left by the removed tray. This opening is comparatively small and provides a comparatively small entrance means for outside air as compared with what would be the case were it necessary to open the whole section such as would be necessary if a door were employed for closing each section.

In the section there are carried a pluralit-y of drawlike trays 28 but these trays are made preferably" without the reticulated bottom. although they slide inlandbnt as do the trays 22, finger grabs 29 being provided for their remt 'al.

The sections 2'and 3 are made intercommunicating at their upper ends by means of longitudinal slots or openings 31) formed in the walls 20. The section 2 communicates with the sections 1 at their upper ends by.

means of'transvei'se slots 31 formed in the walls 21 and the flaring months 8 of the flues connect with these slots 31 and thus the air from sections 2 and 3 may pass into the months 8 at the top of the case down through the body portions of the fines. into the air space 6 and thence through openings 13 and discharge months 9 into the compartment 10. The air in this transmit'is thus cooled by having its heat extracted through the medium of the tempering agent carried in the tanks l and it enters the compartment 10. therefore. at a low temperature. It is the purpose that this cool air'shall then be allowed to rise and absorb the heat of the commodities or articles carried on the trays 22 and To this end there is formed in the bottom 12 a plurality of rectangular slots'32 and the cool air thus passes through these slots. rising and absorbing the heatof the articles carried on the trays 1n the t sections 2 and 3. reaching the top of the case at a higher temperature than that at which it left the compartment ,0. This warm air then enters the months 8 through the slots 31 and the cycle of operations just recited is repeated. It is sometimes found desirable to confine this circulation of air to one section of the case or to two sections thereof and to this end there are provided division plates 33 which are equipped with felt strips 3% extending throughout their perimeters. ()n the top edge of each division plate there are carried two tongues 35 and tbcse tongues engage in suitable apertures formed on the under face of the bottom l2 directly below the wall 20. Thus the division plates may have their tongues 35 inserted in thes apertures and may then be forced into vertical positionswhen they ,Stzlhtbtlllkt'tl) below the walls 21) and thus divide the compartment 10 into three sections corresponding in width to the width of the sections 2.and 3. The compartment 10 is made accessible from the rear of the case by means of three hingedly mounted doors, the doors 36 closing that part of the compartment 10 below the sections 2 and the door 37 closing that part of the compartment 10 below the section All these doors, as is apparent, are provided with suitable latching devices.

The slots or openings 32 may be closed when desired and for this purpose there are provided the plates 38 each of which is provided with a felt strip 39 on its perimeter. Each of these strips is further provided with clamping screws 40 by means of which it may be secured to the longitudinal strips 41 mounted both on the front and rear walls of the case just belowthe level of the bottom 12, so that the blocks or strips 38 when in position may lie flush with the said bottom 12.

From the construction just described it is apparent that in the event it is only necessary to cool a section of the case, an air circulation may be set up in the particular section or sections desired. For example, let it be assumed that all the goods contained in one of the sections 2 has been disposed ofv at the end of the day. A division plate 33 can then be placed in position underneath the wall 20 adjacent that section and the cooling tank 4 adjacent that section may then be disregarded so far as concerns supplying it with a new tempering agent, the preferable character of which has been hereinbefore described. The strips 38 may then be placed in the slots 32 of that section but the slots 32 of the remaining section 3 andthe section 2 are left open and likewise the remaining division plate 32 is not placed in position. Assuming this last section 3 and the section '2 to contain perishables, it is seen that the necessary refrigerant is placed in the tank 4 adjacent the section 3 which contains the perishables, when a circulation of air is set up in section 2 and the section 3 concerned on that section 3.

and through the flue of the tank attendant Thus it is seen that it is not necessary to cool the whole case when it contains only enough goods to filltwo of the display sections thereof. Likewise if there is" only enough goods left to fillone or theseetions 3, the circulation of the air may be confined to that section b the proper placement of the division p ates 33 and strips 38.

The provision of the air space between the exteriorwalls' ofthe tank 4; and the interior f walls of the section 1 provides for the cooling of air in the vicinity of the tank in addition to the cooling which is set up by the circulation of air through theflue attendant on the tank.

In Figs. 16 to 18 inclusive, there'is shown a modification of the structure illustrated the invention,

"of the display mouths 54 which open into the compartments 50 at the top thereof, a division wall .55 separating the two intake mouths. The

flue 53 communicateswith an air space 56 by means of which air passed down the flue is transmitted to the discharge mouths 57 opening into a compartment 58 similar to the compartment 10 shown in Fig. 3. Division plates 59 and closure slats 60 are provided for restricting the air circulation to one or the other of'the compartments 50, just as is the case with the preferred embodiment of the invention previously described.

The inner walls of the compartment 51 -are insulated by a preferably asbestos lining 60, and an aii space exists between this lining and the outer walls of the tank 52.

.Theside walls defining the air space 56 are formed with openings 61 to permit air to pass into this space from the compartment 58 and -V1Ce versa.

The principle of the operation of the modification shown.in Fig. 16 is the same as that of the structure shown in Figs. 1 to 9 inclusive, and a recital of this operation need not be repeated here.

It is believed that the foregoing description and the accompanying drawings clearly set forth the construction and operation of and further description is, therefore, omitted.

The invention having been described, what is claimed as new and useful is:

1. In a refrigerator, a refrigerating compartment, a plurality of display compart ments for perishable commodities, means for circulating theair of said latter compartments through the refrigerating compartment to absorb the heat of the air, and removable division plates whereby thesafd circulation may be confined to one or more of the display compartments.

2. In a" refrigerator, a. refrigerating compartment, a plurality of 'display compartments for perishable commodities, means-for circulating the air of said latter compart:

inents through the refrigerating comparement to absorb the heat of the air','and removable division plates .whereby the said-"- circulation may be confined to one or more compartments, the division plates having attached on their edges a fabric binding to. prevent the leakage of air past them. Q g 3. In a refrigerator, a refrigerating compartment, a tank carried in said compart ment. a display compartment for perishable commodities. a fine surrounding said tank and having intake and-discharge mouths communicating with the display compartment. and a removable plug for the refrigerating compartment whereby a tempering agent may be placed in said compartment.

t. In a refrigerator, a refrigerating compartment. a tank carried in said compartment and adapted to receive a tempering agent. a compartment for perishable comniodities, and a flue surrounding the tank and having a flaring mouth portion communicating with the second said compartment adjacent the top and a discharge mouth communicating .with said latter compartment adjacent the bottom.

5. In a refrigerator, a refrigerating"compartment, a tank carried in said compartment and adapted to receive a tempering agent, a compartment for perishable commodities, and a flue embracing the tank and having a flaring mouth portion connecting \vith thesecond 'said compartment adjacent the top and a discharge mouth communicating with the latter compartment at the bottom, the flue embodying a relatively narrow body portion disposed against the side of the tank.

6. In a,refrigerator, a refrigerating compartment, a plurality of display compartments for perishable commodities, the display compartments having slots formed in their walls placing them in communication with each other and with the refrigerating compartment, detachable strips for closing said slots, a removable division plate car ried in the refrigerating compartment, whereby the circulation between the said refrigerating compartment and display compartments may be regulated to include all,

the adjoining or several successivedisplay.

compartments. 7

In testimony whereof he aflixes his signature.

RAYMOND. K. BURRITT.

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