US1506103A - Dining-car refrigerator installation - Google Patents

Description

Aug. 26, 1924.

v w. WISHART ET AL DINING 0 m REFRIGERATOR INSTALLATION File'd Auz. 8. 1921 4 Sheets-cheat 1 Aug. 26, 1924.

w. WISHART ET AL DINING CAR REFRIGERATOR INSTALLATION 4 Sheets-Sheet 2 Filed M22. 8. 1921 flZ era H/Vbrreii 1: I} I my.

Aug. 26, I924. 1,506,103

V w. WISHART ET AL DINING CAR REFRIGERATOR INSTALLATION Filed Au 8. 1921 4 Sheets-Sheet Aug. 26, 1924. 1,506,103

W. WISHART ET AL V DINING CAR REFRIGERATOR INSTALLATION Filed Aul. 8, 1921 4 Sheets-Sheet. 4

Y A Am' I Patented Aug. 26, 1924 UNITED STATES P'A TE-NT OFFICE.

WILLIAM-WISHABT AND-ALBEarH: MORRELL; or oLI 'roN, IOWA, ASSIGNORS, BY MESNE ASSIGNMENTS, TO CLIMAX ENGINEERING COMPANY, or CLINTON, IOWA,

A QORPORATION OF DELAWARE.

DINING-GAR REFRIGERATOR INSTALLATION.

Application filed August'8, 1921. Serial No. 490,781.

I To all whom it may concern:

Be it-known that we, WILLIAM WISHART and ALBERT H.- MoRnELL, citizens of the United States, and residentsof the cit of Clinton, in the county of Clinton and tateof Iowa, have invented certain new and useful Improvements in a Dining-Car Refrigerf ator Installation; and we do hereby declare with'a refrigerator-high side and low side for the purpose of cooling brine-which not only cools the main refrigerator box but also circulates through a pipe system connecting a plurality of subsidiary refriger v ator. boxes with the brine chamber of said main-box to permitall of the refrigerator boxes to be brine cooled. 7

It is an object of this invention to provide a coolingsystem' for cooling all of the refrigerator boxes of a dining car from one source.

It is also an object ofthe invention to install a combination hi h and low side refrigerating unit in a dining car to maintain a circulatingcooling medium at a low temperature for the purpose of cooling all of the dining car refrigerator boxes.

Another object of the invention is to connect all of the various refrigerator boxes of a dinin car by a piping system with a tank the coo ing-medium 'of which is cooled by. a' refrigerant expansion coil connected with "a higl'1' SidQ' refrigerator unit. 4

A further object of this invention is to circulate acoolin'g medium through a pipmg system" which connects all of the refrigerator boxes of a dining car with a tank frigerant expansion coil for cooling said;

' me'ium: f

vention to equip the main refrigerator-box side unit Having pi s connected with an ex-,. pan'sionj-coil whlc projects into. a brine "chamber to cool thebrine to cause circu lacontaining the cooling medium and a re- It is furcher morejan object of 'the inof a dining car 'withfla refrigerator high tion thereof through a piping system con necting all the auxiliar refrigerator boxes of the dining car with the brine chamber of the main refrigerator box.

It is an important object of this invention to connect all of the refrigerator boxes of a dining car by means of a piping-system adapted to besupplied with a cooling medium from a dining car supply tank or from an exterior source of'supplywhen the dining car is not in motion and the cooling medium in-the sup-ply tank is not'sufiicient to supply the required amount of the cooling medium to the piping system.

Other and further important objects of this invention will be apparent from the disclosures in the specification and drawings. The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings- Figure 1 is a plan View .of the interior of theikitchen end of a dining car equipped with a refrigerator installation embodying the principles of this invention.

Figure 2 is an enlarged detail section taken on line 22 of-Figure 1.

Figure 31s a horizontal section of the various dining car refrigerator boxes.

Figure 4 is a sectional view taken on line 4'-4 of Figure 3.

Figure 5 is an enlarged detail section taken on line 5-5101" Figure l-showing the roof of the dining car and the refrigerator high and low sides in place.

v Figure 6 is a detaihelevation of the refrigerator high side and low side unit-with the supporting-frame shown in section.

Figure 7 is an enlarged detail section taken on line 77 of Figure 1-.

As shown in the 'drawmgs The reference numerall indicates a dining car provided with a top 2, which has an opening3 therein at one corner of the car.- The" dining car lis' divided in a dining room 4;, a pahtry 5, a kitchen section (land a passageway 7. The passageway 7 leads from one entrance of the car between the kitchen section and one side wall of the-car to the inner entrance to the dining room. The dining room 4 is separated from the passage 7 by side partitions 8spaced apart to afford an open doorway. A buffet or cabinet 9 is positioned transversel of the car in front of the inner end wal 10 of the kitchen section. A transverse wall' '11 separates the pantriy one end of the car 1.

The kitchen is equipped with a range 13 and with an um 14, which are positioned longitudinally in the kitchen along the inner kitchen wall 15. v Mounted 'in one'corner of the kitchen 6 is a main refrigerator box 16 having an opening" 17 in the top wall thereof. The main refrigerator box 16 is provided with a front door 18 affording access to a main refrigerating chamber 19 for keeping meats and other products. The chamber 19 is provided with a baffle 20 to the upper portion of which a drip pan 20 is connected. A drip plate 21 extends over the upper end of the drip pan 20*. A brine tank 22 is mounted in la chamber 23 of the box, 16 and extends vertically at one side of the baflle 20 and across the upper portion of the box 16, as shown in Figure 5. The top .of the brine tank 22 is provided with an opening surrounded by a flange 24, which projects upwardly into the opening 17 of the box 16. The main refrigerator box 16 is provided with a projection 25, into which the brine tank 22 projects. The box extension 25 abutsagainst theend wall 26 of the car 1.

. Mounted 'in the ln't-chen against the outer longitudinal wall of the car is an auxiliary refrigerator box '27 and a sink 28. A shelf 29 is provided transversely of the kitchen on the wall 11. Stationed in the pantry 5 against the longitudinal inner wall thereof is a second auxiliary refrigerator box 30. A shelf or table 31 is disposed transversely of the antry on the wall 11. The fruit and.

'vegetale-refrigerator box 32 is located in the pant in the corner formed by one of the partitions-8 and the outer car wall of the pantry. q The. entrance to the pantry is between the' cabinet 9 and the refrlgerator box 32.

v The refrigerator box 32 is provided with a door 33, which permits access to a cooling chamber 34 for fruits and vegetables. A brine tank 35 is mounted within the box 32 for the purpose of absorbing heat for cooling the chamber 34. If deslred, a coil may be substituted for the tank 35. A baflle 36 and a drippan 36 are provided in the chamber .34. A dri plate 37 projects'over the upper end oft e drip pan 36.

The refrigerator box 27 provided with I top doors 38 and front doors 39 to afiord access to the interior of said box. Connected to the lower end of the main brine tank one end of a main brine supply pipe 40 which projects throu h the main refrigerator box 16 and throng the auxiliary refrigerator box 27 and then passes through the pantry and connects with the return pipe 41.v The heat absorbing orcooling jackets 42 and 43 are each connected with the main brine supply pipe 40 by means of a regulating valve 46. The auxiliary refrigerator box 30 is provided with hollow heat absorbing or cooling cylinders or jackets 47 and 48 connected tovone another at their upper ends by an outlet or i return pipe 49. Pipe coils may be used in place of the cylinders 47 and 48. The cooling jackets 47 and 48 are each connected at their lower ends witha re The feed pipe 51 has one end connected with the main pipe 40 and extends across the pantry below the shelf 31. and into the box 30 to permit the regulating valves 50 to be connected therewith. Connected with the;

pipe 49 is one end of a return pipe 52, which projects upwardly out of the box 30 and across the top of the pantry to connect up- I gulating valve 50. which connects with a brme feed pipe 51.

with the main return pipe 41. The aux-j iliary refrigerator box 30 is provided with top doors 53 and front doors 54. Connected in the main brine supply pipe 40 at the'outside of the box 27 is a three way connector 55 to the middle arm ofwhich a short pipe length 56 is connected. A shutoif valve 57 is provided in the pipe 56 and is adapted to be connected with anoutside source of brine for charging the dining car brine system when the dinin crating plant is outof commission. A three way connector 58 is connected in the main return pipe 41. A short pipe length-59 is connected with the middlearm of the con'-' nector 58 and has a shut-off valve 60 attached thereto to permit a return pipe of an outside refrigerating system to be connected with the return line of the dining car sys-.

tem.

car refrig- For cooling the cooling medium such as brine used in the dining car refrigerating system a portable type combination high side and low side refrigerating plant unit is used, as illustrated in Figures 5 and-6. The. .portable unit comprises a peripherally flanged cover or plate 61 adapted to close the opening 3 in the car roof 2. A ventilatmg hood 62' is provided on the cover 61. I To lower the high side-low side unit in place ari eye screw bolt 63 is secured to the cover.'

Attached to the bottom of the cover 61 is a supporting frame embracin a long section 64 and'short section 65. e long fraine section 64 projects into the space above the main refrigerator box extension and between the end wall 26 of the car and the wall of the main. refrigerator box. Supported in the long frame section 64 is a driving motor 66 connected to operate a compressor 67. Also mounted in the long frame section 64 is a condenser 68, one end of which is connected to a refrigerant tank 69, wliile ..to the brine in the brine tank 22. The out let endof the expansion coil 72 is connected by. means of a pipe 73 with the inlet pipe 74 of the compressor 67. The intake end of .the expansion coil 72 is connected by a pipe 75 with the outlet pipe 76 of the refrigerant tank 69. An expansi n valve 77 is providedin the pipe 7 5. l

- The operation is as follows:

As shown in Figures 5 and 7, brine or any other. cooling medium is provided in the tanks 22 and 35 and in the various pipes of the cooling ipe system. With the refriger ator low side expansion coil 72 projecting into' the upper end of the brine. tank 22 in the main refrigerator box 16 the brine in the upper portion of said tank 22 is adapted to be cooled by the refrigerant from the high side tank 69 flowing through the expansion coil 72 when the motor 66 is in operation to operate the compressor 67.

The refrigerant circulating through the expansioncoil is permitted'to expand and draws the heat from the brine. The heated refrigerant leaves the expansion coil 72by way of the'pipe 73 and enters the" compressor 67 where it is 'compressedJ'The compressed refrigerant from the I compressor flows through thepipe-70 intothejcond'enser 68 where it is-condensed {and allowed to enter the refrigerant tank 69' for in 'the aexpansionfcoil. 72.;5The Theated brine in the upper ortio'n' of; the brine 22 isthus coole by the refrigerantfpassing through the expansion coil 72. As the brine is cooled it moves'downwardl in the tank 22 and out throu h the main pipe 40 to enter d the lower end 0 thebrine tank 35 in the fruit and vegetable refrigerator box 32. The cooled brine. in the tank 22 is adapted to serve as av stored cooling means adapted to cool the system for a considerable period of time after the machine has been stopped. The cold brine from the main pipe 40 also 'of-the main return v Cold brine from t e; pipe 40 flows through circulates through the cooling cylinders 42 and 43.0f the auxiliary refrigerator box 27 when the valves 46 are open. From the cooling cylinders 42 and 43 the brine which gradually becomes heated while circulating rises in the pipe 45 and flows back into the upper portion of the brine' tank 22 by way ipe 41.

the pipe 51 into the cooling cylinders 47 and 48 of the auxiliary refrigerator box 30 when the valves 50- are open. From the cylinders 47 and 48 the brine which graduv The main refrigerator box 16 located in the kitchen is adapted to have meats orother food products stored in thechamber 19 thereof. The chamber 19 of the box 16 is rovided with a baflle 20, a drip pan20 an a drip plate 21 to provide a path whereby air is conducted against the surfaces of the brine tank 22 to produce a circulation for cooling the box 16. The plate 21 and the pan 20 prevent moisture from dripping on the foods. A similar baflie 36, drip pan 36 and drip plate 37 are provided in the cooling chamber of the fruit and vegetable refrigerator box 32.

The auxiliary refrigerator box 27 is located in the kitchen'and is provided with the cooling cylinder or jacket 42, whichmay be used for fish, while the cooling cylinder orjacket 43 is adapted to receive a can of milk. The middle cooling chamber in the box 27 is accessible through the front doors ion 39 and may be used for storing any kind offood products. The auxiliary refrigerator box 30 is located in the pantry and the cooling cylinder 47 thereof is adapted to re between the cooling cylinders47 and 48 is accessible through the front doors 54 and ceive a cream can, while the cooling cylinder 9 1-48 is for ice cream." The cooling chamber number of refrigerator boxes may-be co nnected in the system and connected by' s'uitable pipes with the cooling brine tank 2251f preferred a cooling medium other than brine maybe used if desired. I

In case trouble is developed in the refrigerator high side and low side unit so that the brine cannotbe cooled the dining car be-run on a side track and connected wit an external refrigeratorbrinecharging station by means of suitableigipes which may be removably connected the valves 57 and 60'to charge the ,dining car refri rator system with cold brine sufiicient to ast auxiliary'boxes with the brine tank, and a until the next external charging station is reached'or until the refrigerator high side and low side unit -is repaired.

Attention is called to the "refrigerator high side and low side unit which may be removed through the roof of the dining car-- as a unit. by connecting a hoisting cable with the screw eye. 63.

e are awarethat numerous details of construction maybe varied through a wide range without departing from the principles of this invention, and we therefore do'not purpose limiting the patent granted other- We claim as our invention:

1. A d1n1ng car refrigerator-system, comprising a main refrigeratorbox embodying wise than necessitated by the prior art.

a, food-receiving chamber, a brine tanktherein, a plurality of auxiliary refrigera torboxes, a pipe system connecting said refrigerator high side and-low side unit asfrigerator'box and through the auxiliary refrigerator boxes to cool the same.

2. In a diningcar refrigerating system,

a main refrigerator box, a brine tank therein, a removable cover for an opening in the car roof above said box, and a refrigerator high side and low side unit fixed to the underside of said cover and adapted,

( --when said cover is in position on said car 'roof, to be positioned with its highside alongside saidbox and with its low side insaid box brine tank. a c

3. 'In a dining car refrigerating system,

a main refrigerator box, a brine tank therein,. a removable cover for an opening in the 'carroof above said box, a refrigerator high side and low side unit fixed to the unsaid cover is in position on said car roof, to be positioned with .its high side alongside said box and with its low side in said 4 box brine tank, a plurality of auxiliary re- 4. The combination with a dining car, 'a 7 closed circulating system therein containing a heat exchange medium, means in the car for cooling said medium, and-means con- 7 nected with. said system whereby a charge of the heat exchange medium may be supplied thereto from an exterior charging plant when the cooling means in the car is out of commission.

5. The combination with a car,-of

a closed circulating system-therein embodying a 'plurality of refrigerator boxes, means in the dining car for cooling said system,. and means for connecting-an external cooling medium charging plant 'with said sys-" term to supply a cooling medium charge v thereto when said cooling means is, out of commission.

. 6. The combination with a dining car, of a closed circulating 'sy'steln embodying a.

plurality of refrigerators, a combination high side andlow side refrigerator unit inthe dining car and connected with .one of said refri erators for cooling said'.system,

- and means connected with said system forsupplyinga-cold charge of the cooling mei dium. from an exterior charging plant when I the high side and low side refrigerator unit- 80 7. The combination with a plurality" of is notin operating condition.

dining car refrigerators each embodying a food-receiving chamber, of a brine circulating pipe system connecting said refrigerators in tandem, andmeans in one of said refrigerators adapted to. cool thebrlneto cause circulation thereof through" the van- 4 ous refrigerators to cool the same. H v In testimony whereof, we have hereunto subscribed our names in the presence of two subscribing witnesses. derside of said cover and adapted, when WILLIAM WISHART. ALBERT H. MORRELL. Witnesses;

FRED E. PAESLER', JAMES M.

Images