US1485902A - Refrigerating apparatus - Google Patents

Description

March 4 1924. l 1,485,902 l W. ZEINDLER REFRIGERATING APPARATUS Filed Jan. 2,. 1920 2 Sheets-Sheet 1 INVENTOR w. ZEINDLER REFRIGERATING APPARATUS March 4 1924.

l 2 Sheets-Sheet 2 Filed Jan. 2,

A Wemel- Zezndleff ATTORNEY Patented Mar. 4, 1924.

UNITED armes PATENT WERNER ZEINDLER, OF PHILADELPHIA,

To all whom it may concern.' v

Be it known that I, WERNER ZEINDLER, a citizen of Switzerland, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Refrigerating Apparatus, of which the following is a specication.

My invention relates to a new and useful improvement in refrigerating apparatus, and has for its object to provide an exceedingly simple and effective device of this description the working parts of which are entirely inclosed and having a distended refrigerating coil which may be readily inserted in a refrigerator or ice chest of any design and effect the cooling of the interior thereof without the necessity of using ice.

A further object of my invention is to so construct the apparatus that the maximum eiiciency for 'extracting the heat from the cooling agent in its cycle is obtained and to expose the maximum cooling surface for refrigerating urposes relative to i the amount of coo ing agent used.

A still further object of my invention is to so design the apparatus that the working parts will be entirely contained within the central compartment while the circulating and cooling water surrounds this compartment, to dispose the compressing cylinder in a vertical position land to provide direct drive for the mechanism from a housed motor so that the apparatus may be entirely self contained and readily lubricated by the splash system.

further object of my invention is to provide a secondary suction valve which will act as the intake from the central chamber so as to withdraw any gas which may leak thereto from the compressing cylinder.

A further object of my invention is to so i construct the suction valveV and its connective parts as to prevent it from falling into the compressing cylinder should the parts thereof become displaced or disarranged from accident or wear.

A still further object of my invention is to provide for making ice in limited quantities-while eflecting the cooling of the ordinary refrigerator box.

With these ends in View, this lnvention consists in the details of construction and combination i PENNSYLVANIA, `LSSIGNR 0F ONE-HALF TO GEORGE L. GAY, 0F PHILADELPHIA, PENNSYLVANIA.

REFRIGERA-TNG APPARATUS.

Application led January 2, 1920. Serial No. 848,743.

of elements hereinafter set fprth and then specifically designated by the c a1m.

In order that those skilled in the art to which this invention appertains, stand how to make and use the same, I will describe its construction in detail, referring by numeralsto the accompanying drawin forming a part 'of this application, 1n which:-

Fig. 1, is a vertical section of a refrigerating apparatus showing the motor and rerigerating coil'in elevation.l

ig. 2,'1s an enlar ed fragmentar view showing the compressing cylinder an valve casings in plan. Y F.Fig 3, 1s a section at the line 3-3 of Ifig. 4, is a detail view casing.`

Fig. 5, is a similar view of the suction valve stem and split washer therefor.

Fig. 6, is a section view of a household refrigerator showing m improved refrigerating apparatus appliedy thereto.

Fig. 7, is a detail plan view of the ice making element.

In carrying out my invention as here embodied, 1 represents a jacket preferably circular in cross section in which is located the casing `i?. the latterv being of such diameter as to form a `com artment between the walls of the jacket an the walls of said casing for containing the water which serves to cool the system.

of the suction valve The interior of the casing 2 provides a compartment for housing the operating mechanismI and in this ycompartment is located the compressor cylinder 3 in which latter operates the piston 4 connected by the pitman 5 to the crank shaft 6. 'This crank shaft is journalled in the bearings 7 and carries a beveled gear 8 meshing with the beveled pinion 9 the latter being secured upon the vertical shaft 10. The lower end of this vertical shaft is mounted in the bearing 11 while the upper portion thereof passes through the long bearing 12, said shaft carrying a beveled gear 13 upon its upper end with Awhichv meshes the beveled pinion 14 carried bythe shaft 15 of the motor 16. By this arrangement when the motor is in operation the crank shaft will may under- 4 V from this valve leads the passageway 3 be revolved causing the piston to reciprocate within its cylinder. A

To the upper end of the cylinder is litted the head 17 and in this head is fitted the suction -or intake valve casing 18 havingthe valve seat 19 at the lower end thereof upon which the suction valve 20 is adapted to seat. rlhis casing is held in place by the threaded plug 21 having a deending shank 22 The valve 20 is provide si, with a stem. 23 the upper portion oi which is hollow as indicated at 24 and has formed therewith a collar 25 between which of the casing 18 is Ainterposed the coil spring 26 for the purpose of normally valve 20 u on its seat. The valve stem 23 also has ormed therewith the dan e 27 beneath which the split washer 23 is p aced, said washer being of such diameter as to contact with the flange 29 formed upon the interior of the casing 18 by which arrangement the stem is free to move up and down within the casing within certain limitations and this washer will prevent the valve from falling into the cylinder should the collar or sprlng break. v

T e hollow portion 24 of the 'stem telescopes over the shank 22 so as to guide the stem in its reciprocating movements.

The valve casing 18 has two openings 30 and 31 formed in the sides thereof the opening`30 registering with the intake 324 while the hole 31registers with the secondary intake 33, and 34 represents a spring pressed valve which normaly closes the intake opening 35 communicating with the interior o the casing 2 for the purpose hereinafter set fortht 36 represents the exhaust valve which is fitted in a suitable casing, set in the head 17 and communicating with the cylinder prud to which the upper end of the pipe 38 is secured., rlhis pipe is coiled around the casing 2 out of contact therewith so as to have its entire surface subjected to the action of the 'cooling water contained in the compartment outside of the casing.,

The lower end of the pipe 33 passes through a stung box 39 and is connected with the expansion valve 40, said valve in turn being connected with the upper end of the refri erating coil 41, the lower end of said coil eing turned upward through the center of the coil as indicated at 42 and terminating in the control valve 43. This control valve is connected with the pipe 44 which passes upward therefrom into the interior of the casing 2 and is connected with the intake passageway 32.

From t foregoing eration of my improved apparatus will be as follows :--v

The system being charged by the introducproper amount of coog and the bottom holding the p said water bemg supp f water a block description the opagent into the coils control valve 43 the motor in operation the reciprocations of the piston, 4 will draw the cooling agent in gaseous form into the cylinder through the pipe 44 and the suction valve and then compress the same forcing 1t out into and through the coil 38 which when reaching the expansion valve will be liberated 1n the form of gas into the coil 41 thus lowering the temperature of said coil to the proper degree and this cycle will c ontinue as long as the motor is in operation9 the coil 38 and its contents 'being constantlyy cooled by the water contained 1n the comartment betweenthe iacket and the casingi hed through the proper surface line connected to the inlet 45 and a circulation of said water maintain by the connection drain line with the outlet 4d in practice the apparatus when so placed upon a refrigerator or ice box with the coil 41 projects into said box as clearly illustrated 1n Fig. 6 and when the apparatus is in operation as above described this refrigerating coil will produce the proper temperature within said box.

47 represents a brine tank which ma be placed within the refri erator and in w ich is a secondary coil 48 eading from the refrigerating coil 41 having a valve 49 located in said secondary coil by Which'arrangement the placing of a cam 50 within the brine tank to cause the freezing of the contents of said can, and by filling said can with of ice may thus be produced.

51 represents a hood which is placed over the beveled gears 13 andv14 to inclose the same and provide against possible accidentg When the apparatus is in o eration any leakage of the cooling agent rom the cylinder through the piston or otherwise will pass into' the central compartment to prevent the loss of the same or its interference with the operations of the machine, the same will be sucked back into the cylinder by the action of the piston through the seconda valve 35 thus preventing the loss of the cooing a ent `from the stem thereby increasing t e economy., myimproved construction a cheap, simple frigerating apparatus is may be readily applied to any refrigerator and is especially a apted for application to household refrigerators.

0f course l do not wish to be limited to the exact details of construction `as herein shown as these' may be varied 'within the limits of the. appended claim without departing from the spirit et my invention Having thus ful y described my invention9 what 1 claim as new and useful isz- En a rerigerating apparatus, the comhination of a casing, a jacket surroung said. cas d sp from to fo a and ecient re- 38 and 41 tugh the lid provided which 8 compartment for the circulation of water, of the first named valves and the interior of a coil disposed in said compartment and enthe casln ,l and a piston reciprocatingly circling the casing, a cylinder within the mounted 1n the cylinder. casing with which said coil communicates, In testimony, whereof, I- have hereunto valves controlling the communications beaxed my signature. y tween the coil and cylinder, a secondary valve forming a communication between one WERNER ZEINDIJER.

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