US999704A - Show-case refrigerator. - Google Patents

Description

A.- w. DE NEEN.

SHOW CASE REPRIGERATOR.

APPLICATION FILED OCI'. 8,1II10.

Patented Aug. L M3U.

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dkloznn) un mw saine so as to keep thc same in fresh, attrachereinafter described and claimed.

ALBERT W. DE NEEN, OF ST. JOSEPH, MISSOURI.

SHOW-CASE BEFRIGERATOR.

oceani.

Speclcaton of Letters Patent. f Patented Allg'. 1, 1911.

. Application filed October 8, 1910. Serial Ho. 5 88,03:2.

io all whom 'it may concern:

Bc it known that I, ALnnnr W. DE NEEN, a citizen of the United States. residing at St. Joseph, in the ,county of Buchanan and,J State of .'ilissouri` have invented certain new and useful Improvements in Show-Case Refrigerators, of which the following is o specification. reference being had to the acf compairviug drawings.

This invention is an improved displa7 refrigerator for use in displaying meats and other provisions, and also refrigercting the tive and wholesome Condition.

@ne object of my invention is to provide :in improved refrigerator of this class which is exceedingly ctlicient, in which all parts are acces le, so that the refrigerator may bereadiiy Kept in a Clean and sanitary condition, and which is extremely simple, may be manufactured at minimum cost, and consumes but a niinin-:inn quantity of ice. Another object of my inventionr is to effect improvements in the construction of the conduit through which the refrigerated air from the ice box is blown to the case or coinpartlnent in which the provisions are kept.

vAnother object is to Jrovide improved means for deliecting the last of air from the refrigerating chamber to `the ice box, and through and around the ice in theiee box so as to cause the ice to etl'ect the retrig era-ting or cooling of the air while the saine is passingthrough the ice box, and before it reaches the blowing fan..

A further object of my invention is to effect improvements in the construction of the regulating valves.

With the above and other objects in view, the invention consists 'in the construction, combination and arrangement of devices In the accompanying drawings-Y-Figure l is a vertical longitudinal central sectional view of a display refrigerator const ructed in accordance with my invention. Fig. :2 is a horizontal sectional view of the saine ou the plane indicatori by the line a-o of Fig. l. Fig. 3 is a transverse sectional view of the same on the plane indicated bv the line b-b of Fig. 1. Fig. 4 is a detail sectional view on the plane indicated by the line c-c of Fig. 1.

In the embodiment of my invention here shown, l provide an ice box 1, on one side of which is a case 2, providing an upper refrigerating chamber 3, and a lower chamber 4, the upper chamber 3 being preferably, and as here indicated, a. glass case having end poptions 5, 6, of cabinet. work1 and the lower compartment 4 forming a counter, the top of the counter indicated at 7, being preferably a marble slab which also forms the horizontal partit-ion.

In the rear WallV of the case forming the refrigerating compartment, 3, are openings provided `with doors 8 which enable access to the articles in the'said refrigeratiug vompartinent and on the counter to be had.' l

would have it; understood that in v improved h display refrigerator may be made of any suitable material and finished in any suitable manner, and'that tbc saine may bc ofv any suitable size, and tbc variousl parts thereof, or" any suitable proportion.

The ice box l is provided with a lid i? which is hinged atonc side as at l0. plat(- 11 is spaced from the lower side o' the saidl lid and is carried thcrcbv. the said plaie is prete 'abbv made of short nielal and is here shown as suspended from the lid il and .supported at a Suitable distance below the sano: by metal straps l." ..theuppvr ends of which are outtm'ncd and secured to the undcr i ie of the said lill.l their lower ends being; iuiurncd and secured to the plate at the side edges thereof. 'l`be lsaid plate forms .1

spre aling chamber between its upper side,

:be bottoni of xbiice box, anl nm'v be of :my

suitable construction. brani-h pipe l5 for the water resulting' from the meltingr of the ire leads from the bottoni ol' the irc box.,

The inns-r end .vall of the icc box is pro vided ith fin opening ltiwhicb eslablnhes cominunimnion between the refrigeratiug vhaiuherll and the upper portion of the ice box. the said opening extending entirely arl-oss the said refrigerating chamber. that is to say, the width of the said opening being eoextersivc with the space between tbe front and rear walls if-tbe iefrige'iatiug chamber. The lower side of the said opening is above the counter 'l' which forms the bottom. of the refrigeratiu* chamber. and a detiecting plate 17 which 1s inclined, is attached to tl-e inner end wall of the ice box at a no'n c-linrid t` a ith the lower side. of the .will opening lf?. one enfl of the said inlira-f ola resting on the rotuzfer T or bottom of the, refrigerados* chamber. .hn opening lll iu the `:aid 'nne end wall ol` the ice ho: '-wahlislrw como:eaniration between the louer '.art'ion thereof and the lower eot'tgiarttneui -'t of the ease 2. lle said compartment is divided h r a vertical 'partition lf), into an aiirintain @handler L'O, and it dat?. gir-'aber l. lo the rear all of thAm air intake Leber is an mening nrovidet'l ith a door -shapeel spx-vaders 23 are .sfeer-ed orali-f up ride of the plate Il, and dispwed with t poi`l tud ends opito ite the one? f l". heir bases or broadened #nelse:-;tend n ,o the outer tige of the said plate. 011e or more of these spreaders may be used. :rnd where a plurality of them are employed. as it; the iorin of the invention hown herewith, their broadet'ied ends are spared somewhat apart, and are also spaced from the sides oi the plate 11. which forni the .side walls of the spreadiuo' chamber.

suitable blower il which is here shown as an elet-trie fan, operates in the intake end Q of a duct Bti which is preferably made of suitable 'sheet metal.' The. said duet is provided with an npturned portion Q7 which extends through the partition Y and termimitt'fs in a reversely bent nozzle 2S which is lo aied in the outer end portion of the refrigerating chamber.Y is contracted in width vertically, is broadened horizontally. as shown in Vig. 2, so that the 'discharge end of the said now/,le extendsl practically" across the rcfrigerating chamber from the front 'to the rear wall thereof. The under i .side of the discharge' end of the said nozzle bears on a cleat or partition Ql which lies on the lzorilontal partition T and serves to prevent any article in the refrigeraling chamber from getting into the nozzle or into the duet 26. the .main portion of the duet fl tapers from its intake end to its joint. with the uptaz'ned bend the intake portion 25 of the duet beineI tapered to a greater extent than the internadiate por` nozzle` formed hy the bend 2T is eontraeted. pair of dellectin'f valves 3l are disposed in the nozzle 28. lfl-aeh of these deflection valves is preferably a substantially oblong! ret-tangiilar sheet metal plate. Their front ends are pivotally connected together as at '32, their pivotal axis beingl vertical. The

sai(t tieileeting valves converge to 'ard the throat or narrow end of the nozzle, and they are movable toward and from each other so that they m: j be disposed at any desired distance apart. Any suitable means may be employed to adjust the said deflecting valves. They ate here shown as each provided with :i rack bar 33, between which is mounted a pinion 34 whieh'cngages both ,of said rack bemand has its lz-earugs as at.

371. and is provided with a head or other suitable device lt on its shaft, whereby the pinion may be turned and caused by eonetion with the rack bars to adjust` the said delleetng valves as may be required.

A valve 36' is located in the opening 1G, and extends across the said opening, -the seid valve being horizontal so that the valve may be moved angularly in a vertical plane, to open or close the opening 1G to any desired extent. Any suitable means may be empl ved for operating this valve. l herein show for this purpose a rod 38. which leads to a point near one of the doors tl, operates in a. guide 39, and is provided with rack -teetlt'40 any lone of which may beV engaged willi a pin 40* so as to secure `the rod. and hence also the ,said valve 3G, in :un: desired adjusted position.

lhe operation of my improved display refrigerator is as follows: A suitable uantity of ice. either with or without'J sa t, is placed in the ice box and on the rack 14. The blower 24 is set in operation and the valves :t1 and 36 are moved to open position. The blower draws air from the ice box and forces the same through the duct 26 into the refrigerating chamber, and the exhaust, or suction in the ice box, caused by the operation of the blower, causes the air from the refrigerating'ehamber to pass down through the ice box, and hack into the duct "Z6, so 'that a constant. circulation of air in the direction oli the arrows, is caused through the ice box, the duet and the refrigerating chamber, the air passing through the refrigerating chamber in a blast. As the air is passed 'through the iee box and in Contact with the surfaces of the ice, it is rendered extremely cold, The. cold air is sucked by the blower from the ice box through the suction chamber :20, and blown through the duct 26. Owing to the fact that the said duet tapers from its int-alte end to the contracted throat of the nozzle, its velocity is greatly increased, and hence it issues from the nozzle f, in a strong blast which sweeps through the tion 730 of the said duet. The throat; of the .strength of'the blast of cold air maintained through the refrigerating chamber and the exhaust. or suction action of the blower, in and through the iee box, the cold ai'r of the refrigerating chamber does not escape therefrom when the doors 8 .f ze opened. In prac. tical tests which I have made, thermometers i apart or adjusted asmay be required to dein the refrigeratingI ehambet` have indicated no inert-ase ot' tempera-ture in the refrigeratiutf chamber when the doors are opened.

'l' ie tluet chamber 21 is filled with a suit.- able heatnonieonducting packing 3S around the dut-t 2G. The valves 31 may be spread ileet tbe air to opposite sideso the refrigeratinpr chamber and prevent it from passing through the center of the chamber,

The spreader or spreaders 23 in the spreading chamber operate in connection with the plate t1 as baliies to deflect the air current to'opposite sides of the refrigerating eluunbrand prevent it from passing by the .shortest course through the center thereof,

and this secures an equal distribution of the air to all parts of the ice-box so that it acts upon all of the exposed surfaces of the ice in the ire'box and hence is cooled by the ice to the maximum extent.

l claritint. ln apparatus of the class described, a chamber having a refrgerana refrigeratg ing chamber communieating,r therewith, a duet dispo-ed with its intake in eonummica tion with the refrigerant containing chamber, and terminatin lr in a nozzle directed, into the refrigeraliug chamber, said duct. tapering,r anddiminhhing in diameter fromv its intake to the throat ol the said nozzle,; and said nozzle widening l'rom its throat to i its discharge end and :t blower to force tti blast of air from the ret't3g.t'.uit t-ontaiw in.;r chamber through the Said duet and through the rel`riferatinl;r chambery haelt to the tit-.si nana-d chamber.

' `he Lewin described refrigerator comi l prism; an tre box. a duet compartment leadin;r from the lower port-ion of the ire box, a ttfxigerating compartment communicating with the upper portion of the'ice box, the

said duet eonumrtment bein,"r provided with a suction chamber immediatety eoimuunieating with the lower portion of the ice box, a 'duet leading from said sut-tion chamber, and haring a nozzle discharging into the refrigerating 'hamber, and back therethrouffhinto the upper portion of the icebox,andablower to exhau t air from the suction chamber and force the same through the said duet, detlecting valves in` the nozzle of the blast duct, and a valve revulatinli;v the eonuuunieation between there rigeratmty chamber und the upper pot'tidit-of-tlie ice ox.

3. The herein described refrigerator comprising anice box, a duet'compartment leadlng from the tower portion of the tee'box, a refrigeratmg compartment communicating with the upper portion of the ice box, the said duet eoziiparm'ent being provided with a suction l:hamber imn'tediately com iminicating with the lower` portion of the iee box, a duet leading from said suction chamber, and having a uozzledischargin f into the refrigerating chamber, and bactherethrough into the upper portion of the iee box, and a blower to exhaust air from the suction chamber and force the same through the said duet, a spreading chamber in the upper portion ofthe ice box, and with which the refrigerating ehairber immediately Vcommunicates. the -said spreading chamber coinnutnieatinler with the interior of the ice box, and :1 spreader in the said spreading chamber.

In testimony whereof I hereunto attix my signature in the presence of two witnesses.

ALBERT W'. DE NEEN.

Witnesses:

J. W. GARNER, M. K. REEDER.

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