US2666439A

US2666439A - Spray type washing machine

Info

Publication number: US2666439A
Application number: US275963A
Authority: US
Inventors: Bechtol Lewis Dwight
Original assignee: Individual
Current assignee: Individual
Priority date: 1952-03-11
Filing date: 1952-03-11
Publication date: 1954-01-19
Anticipated expiration: 1971-01-19

Description

Jan. 19, 1954 D. BECHTOL SPRAY TYPE WASHING MACHINE Filed March 11, 1952 INVENTOR L4 LEWIS D. Bzu-rroL ATTORNEYS Patented .Ian. 19, 1954 UNITED. STATES PATENT OFFICE SPRAY TYPE WASHING MACHINE Lewis Dwight Bechtol, Burket, Ind.

Application March 11, 1952, Serial No. 275,963

- 1 Claim.

1 This invention relates to spray type washing machines and more particularly to a machine for, washing objects, such as eggs.

It is among the objects of the invention to provide an improved spray type washing machine which is adapted to receive a basket of objects,

such as eggs, and wash the objects while contained in the basket; which has an open top and "a height such that loaded baskets can be conveniently placed in and removed from the machine; which directs sprays of cleaning liquid in large volume and at moderate pressure against objects in a basketdisposed in the machine;

which is electrically operated'and substantially automatic in operation; which automatically maintains a predetermined temperature of the cleaning liquid; and which is simple and durable in construction, economical to manufacture, easy to use, and efiective and eflicient in operation.

Other objects and advantages will become apparent from a consideration of the following description and the appended claim in conjunction with the accompanying drawing wherein: V

Figure l is a top plan view of a washing machine illustrative of the invention;

Figure 2 is a longitudinal cross sectional view on the line 22 of Figure 1; and

Figure 3 is a top plan view of a somewhat modifled form of washing machine.

With continued reference to the drawing, the washing machine comprises a shell, generally inv dicated at I0, having an annular side wall II adapted to be disposed in upright position and which may be either of cylindrical shape, as illustrated in Figures 1 and 2, or of polygonal shape, as illustrated in Figure 3.

The side wall II is open at its upper end and its open upper end is surrounded by a rolled reinforcing bead I2 disposed at the outer side of the side wall. A bottom wall I3, of circular shape in the form of the invention shown in Figures 1 and 2, and of polygonal shape in the form shown in Figure 3, is disposed in the shell II) at the bottom end of the latter substantially perpendicular to the longitudinal center line of the shell and is marginally connected to the side wall II at the bottom end of the latter. In the arrangement illustrated,;the, bottom wall I3 is provided with a downwardly extending marginal flange I4 and this flange and the side wall II are apertured to,

receive belts or screws I5 by means of which the suitable means, such as welding or soldering, to provide a leakproof joint between the partition wall I6 and the side wall I I of the shell. The partition wall I6 andthe portion of the side wall II above this partition wall together constitute a washing tank.

A liquid pump I1 is disposed between the bottom wall I3 and the partition wall I6 with its outlet fitting I8 substantially concentric with the center line of the shell I0 and is mounted on the bottom wall I3. In the arrangement illustrated, a base plate I9 is mounted on the bottom wall I3 at the upper side of thelatter and secured to the bottom wall by suitable means, such as the bolts 20 and the base 2| of the pump is mounted on the base plate I9 and secured thereto.

An electric motor 22 is mounted on the base plate I9 at a location spaced from the pump I1 and the motor shaft is connected to the pump shaft by means including the flexible coupling 23 of a construction well known to the art.

The partition wall I6 is provided with a flanged aperture, as indicated at 24, adjacent the side wall II and a pipe 25 extends through this aperture and is provided at its upper end with an annular, external flange 26 which is sealed to the flange of the aperture, as indicated at 27. A flanged coupling '28 is threaded onto the pipe 25 at the bottom side of the partition wall I6, so that the flange of the aperture in the partition wall is clamped between the flange 26 and the coupling 28 to maintain a tight and leakproof joint between the pipe 25 and the partition wall I6. An

elbow fitting 29 is secured to the bottom end of the pipe 25 and a pipe 30 connects the elbow fltting 29 to the inlet 3| of the pump I1 to return water from the tank 32 in the upper portion of the shell to the inlet of the pump.

A hollow header 33 extends through and is secured to the partition wall I 6 substantially at the center of the latter, and is closed at its upper end,

a pipe nipple 34 connects the open bottom end of the header 33 to the outlet I8 of the pump II, so that water or other cleaning liquid returned to the pump through the pipes 25 and 3D is forced by the pump through the pipe nipple 34 into the header 33. v

A plurality of spray pipes, as generally indicated at 35, are disposed in the tank 32, each of these pipes being of rectangular shape and having two legs, as indicated at 36 and 31, disposed substantially at right angles to each other. The leg 36 of each spray pipe is connected at its distal end to the header 33 and these legs of the several spray pipes radiate from the header 33 toward the side wall i I of the tank at substantially equal angular intervals around the header and spaced from and substantially parallel to the partition plate I6. The legs 31 of the several spray pipes extend upwardly from the proximal ends of the legs 36 and upstand along and spaced from the inner surface of the side wall II. The legs 31 terminate short of the top end of the side wall II and are closed at their upper ends by suitable means, such as the screw plugs '38.

In the arrangement illustrated in the drawing, there are six spray pipes spaced apart at angular intervals of approximately SQdegrees around the header 33, but it is to be understood that a diiferent number of spray pipes spaced apart at different angular intervals canbe used,

if desired, without in any way exceeding the scope of the invention.

The legs 36 of the spray pipes are provided in their sides remote from the partitionwall IS with aperturestfi spaced apart longitudinally of 'theicorresponding legs '36 of the pipes and in the legs 3'! with apertures '40 spaced apart longitudinally of the corresponding legs 31, and in the sides of these legs remote from the side wall ll. These apertures 39 and 40 direct sp ays or jets of cleaning liquid upwardly and inwardly of the bottom I3 and side wall I I or the tank 32, th apertures being of such size and of such number and the pump 11 being of such "capacity that the liquid is delivered in large volume "and at amoderate pressure.

An electric heater 4| is disposed above the 4 form of the invention shown in Figure 3 is the same as that illustrated in Figures 1 and 2 and described above.

In the use of the device, with the cleaning liquid at the proper temperature and the pump I! in operation, an open-work basket, such as the wire mesh basket 51, loaded with eggs or other objects to be cleaned, i placed in the tank 32 between thempstandingarmsjl :of the spray pipes 35 and left position until the spray,

forced through the basketand between the articles therein from the apertures 39 and 4|] in the spray pipes, has sufiiciently cleaned the artic'les, whereupon the basket is lifted out of the upper, endofthe tank and, if desired, another loadedbasket placed in the machine.

The invention inay be embodied in other speciiicform without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects ,as illustrative and not restrictive,

. the scope of the invention being indicatedby the partition wall I6 and is mounted atone end in an aperture provided in the partition wall I6 by a suitable fitting 42. A secondfitting 43 is also mounted in an aperture in the partition Wall '18 adjacent the fitting 42 and connected to the heater, ll. A thermostat is disposed in the 'tank32 and mounted'at oneend in an aperture in the partition 'wall I 6 byv a fitting 45 and a switch, '46 is mounted on the inner side of the side wall II below the partition wall I6 andth thermostat 44 is connected to this switch 46 to operate the switch. The thermostatic's'witch 36' can be set for a predetermined temperature by a handkn'ob, 41 mounted on a shaft extending from the switch 46 through an aperture in the side wall TI anda Wire 48. extends from the switch "4G through the fittin and "is jconnectedto one side offthe heajter element in the heater '4I.

One wire 49 of a, two-wire extension cord 15!) extends through the fitti'ng 43 and is connected to the other, side of theheater element in the heater M, While the other wire 5i of the extension cord 56 is connected to thejother side of the switch 4% from that, to which the wire 48 is connected.

With this arrangement, the thermostat (controls the heater III through the'switch 4B tomainrain cleaning liquid in the lower portion of the tank 32 siubstantially at a temperature preselooted by the thermostat adjusting handknob '41.

The wires of the extension coljdffl arebranch'ed and led throughamanually operated switch [.52

to the electric motor 22, so that operation of the motor is manually controlled. If desired, however, the operation of the motor may also be controlled b-ythe thermostatic switch 45, so that the motor cannot be placed in operation unless the cleaning liquid in the tank 32 is at a predetermined'temperature. s V Except for having a side wall, ajs indicat'ed at 5.5, a bottom wall andfa parti'tion wall, whichcated at 56, of polygonal shape, the modified appended claim rather than by the foregoing deseription, and all changes which'com'e within the meaning and rangeof equivalency of the. claim are, therefore, intended to be embraced therein.

What is claimed is:

Y A spray type washing machine comprising a shell adapted to be, disposed in upright position and having n n u de wall and n pe upper end, a'partitionwallin said'shell disposed substantially perpendicular ,to the longitudinal center line of the shell andmarginally join'edfto said side wall intermediate the height 'ofthe latter, said partition wall'andtheportion'of said side wall abovej's'aid partition wall constituting a tank,. a motor driven pump disposed n said shell below said partition w n, a pipe secured at one end tofsaid jpartition wall fandextending through, the latter'andconnected at its other-end 1 to thefinl'et of saidjp'umofa header extending through said partition jwall substantially centrally thereof and having its upper end closed and its lower end connected to the outlet ofsaid pump, and spray pipes of right angular "shape connected each at one/end to said header. and having portions. radiating f'rdm 'said header "toward said side wall at; substantially equaljan'gular intervals and portions upstanding along the ihnerfsid'e of said 'side 'wal1,js'aid spray pipes having their "endsfrjernr'ite' from said'header closed and'having perforations spaced apart'lo'ngitudinall'y thereof for directing liquid spray upwardly from said partition w'allfand inwardly rmin said s ide wan, a heater disposed in, said tank adjacent said partition wall, a thermostat extending through said partition wallinto, said tank,

and aswitch actuated by, said thermostat and controlling "said heater 'to maintain liquidin said tank ,Tsub'sta'nti'ally at .a predetermined temperature, said 'side'wallibeingof polygonalshape and said partition wallfals'o being of polygonal shape and "closely fitting the interior of "said side 'wall.