US2436883A - Washing machine with pivotally supported outer and inner shells and power means on the outer shell for rotating the inner shell - Google Patents

Washing machine with pivotally supported outer and inner shells and power means on the outer shell for rotating the inner shell Download PDF

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US2436883A
US2436883A US565234A US56523444A US2436883A US 2436883 A US2436883 A US 2436883A US 565234 A US565234 A US 565234A US 56523444 A US56523444 A US 56523444A US 2436883 A US2436883 A US 2436883A
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outer shell
shell
inner shell
access opening
pipe
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US565234A
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Hubert C Ellis
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ELLIS DRIER CO
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ELLIS DRIER CO
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F95/00—Laundry systems or arrangements of apparatus or machines; Mobile laundries 

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  • the present invention relates to machines for washing clothes and like articles. More particularly the invention relates to that type of washing machine which is of comparatively large capacity and as its principal components or parts comprises: (1) a cylindrical horizontally extending outer shell which is provided with means for supplying it with a washing fluid, such as water,
  • a cylindrical horizontally extending foraminous inner shell which is adapted to hold the clothes and like articles to be washed, has means for supporting it so that it is rotatable about its longitudinal axis relatively to the outer shell, and embodies a door closed opening for permitting the clothes to be inserted into and removed from the interior of the inner shell when such, opening is in registry with the opening in the outer shell and its door and the door for the outer shell opening are open;
  • power mechanism which is associated with the outer shell, serves when in operation to rotate the inner shell back and forth and consists of a reversible electric motor and speed reducing gearing be tween the motor, and the inner shell.
  • One object of the invention is to provide a washing machine of this type which is an improvement upon, and has certain inherent advantages over, previously designed machines and is characterized by the fact that it may be operated with greater facility and at a greater speed.
  • Another object of the invention is to provide a washing machine of the type under consideration in which the power mechanism for rotating the i V inner shell back and forth is mounted entirely on the outer shell and the outer shell is pivotally connected to a stationary supporting structure so that it may be swung bodily upwards throughout substantially an arc of 90 into a discharging position wherein the openingin its side wall faces downwards.
  • Another object of the invention is to provide a washing machine of the last mentioned type and character which includes a comparatively simple hydraulic system for swinging the cylindrical outer shell back and forth between its normal operating position and its discharging position.
  • a further object of the invention is to provide a washing machine of the type and character under consideration in which the means for sup-' plying the outer shellwith water comprises a fltting which is mounted on the stationary supporting structure and has an outlet, and also com- 2 prises a pipe section which is mounted fixedly on, and in'communication with the interior of, the
  • outer shell and is arranged so that it registers with the outlet of the fitting when the outer shell is in its normal operating position.
  • a still further object of the invention is to provide a' washing machine which is generally of new and improved constructionand effectively and efficiently accomplishes its intended purpose.
  • Figure 4 is an end view showing the elite ell H Figure 5 is a vertical transverse section on the line 5-5015 Figure 1;
  • Figure 6 is an enlarged fragmentary vertical longitudinal section taken on the line 6-6 of Figure 4 and illustrating in detail the construction
  • Figure 7 is an end view of the control valve for' .the hydraulic system that serves to swing the outer shell back and forth between'its normal operating position and its discharging position;
  • Figure 8 is an enlarged vertical longitudinal sectional view of the control valve, taken on the line 8 -8 of Figure 7;
  • Figure 9 is a vertical transverse section of the valve taken on the line's-4 of Figure 8.
  • Figure 10 is a diagrammatic view of the hydraulic system
  • Figure 11 is a diagrammatic view of the electrical circuit for the gear pump driving electric motor of the hydraulic system
  • Figure 12 is a plan view of the fitting and pipe section constituting the means for supplying the outer shell with water.
  • Figure 13 is a. section on the line
  • the machine which is shown in the drawings constitutes the preferred form orembodiment of the invention. It is primarily designed for use in a commercial or large sized laundry, serves as a medium for washing clothes and like articles and comprises a supporting structure IS. a cylindrical horizontally extending outer shell It, a cylindrical horizontally extending inner shell l1, power mechanism I8 for operating the inner shell, 9. system l9 of the hydraulic variety for swinging the outer shell together with the inner shell and the power mechanism back and forth between a normal operating position and a discharging position, and means 20 for supplying the outer shell with a washing fluid, suchas water. when the outer shell is in its normal operating position.
  • a washing fluid suchas water
  • the supporting structure I is adapted to rest on, and be fixedly secured to, the floor of the laundry or other establishment in which the washing machine is used. It remains stationary when in use and consists of a pair of laterally spaced U-shaped standards 2
  • the two standards are positioned in horizontal alignment and embody base portions 24, upstanding front arms 25 and upstanding rear arms 26. They are preferably in the form of -metallic castings and have floor engaging feet 21 on the bottom of their base portions 24.
  • the tie rods 23 serve fixedly to space apart thetwo standards 2
  • the supporting structure l5 comprises a horizontally extending shaft 28 and a bar 29.
  • the shaft 28 extends between, and is fixedly connected to, the upper extremities of the front arms 25 of the two standards.
  • the bar 29 is disposed in parallel relation with the shaft 28 and extends between, and is suitably secured to, the upper extremities of the rear arms 26 of the standards 2
  • the outer shell I3 is positioned between the U-shaped standards 2
  • the housings 34 serve to house the bearings 33 'andare positioned centrally with respect to the end walls. They overlie the standards of the supporting structure and have on the free margins of their side walls radially extending flanges 31 which fit flatly against, and are bolted to. the outer faces of the end walls 3
  • 6 is adapted in connection with operation of the f iiaeuine to be charged with water by way of the supply means 20 and embodies a dump valve 38 whereby the water may be discharged from the interior of the outer shell at the conclusion of a washing operation.
  • the dump valve 38 is of any suitable variety or type and is connected to the a provided with inwardly extending annular flanges bottom portion of the side wall 30 of the outer shell.
  • the side wall 30 embodies in the front upper portion thereof a rectangular opening 33 and this is closed by a door 40.
  • the latter is arcuate in cross section and is mounted by way of arcuate end tracks or guides 4
  • the lower marginal portion of the door is provided with suitable latches for locking the door in its closed position.
  • the outer shell I6 is supported in its normal operat- 'ing position by means of a pair of pins 43 and a of the supporting structure and the hooks 44 are connected to, and project rearwards from, the rear central portions of the flanges 32 on the-end walls 3
  • the power mechanism I8 is stopped and the door 40 is slid into its open position so as to expose the opening 39 in the upper front portion of the side wall 30 of the outer shell.
  • the outer shell is swung upwards and forwards into its discharging position wherein the opening 39 faces downward and permits the clothes and other articles to fall bygravity out of the outer shell.
  • the outer shell is swung rearwards and downwards into its normal operating position wherein it is supported as a result of the hooks 44 resting on the inner ends of the pins 43.
  • the inner shell I1 is disposed concentrically within the outer shell I6 and is adapted to hold the clothes and other articles during a. washing operation. It is driven or rotated as hereinafter described by the power mechanism i8 and consists of a. fora'minous cylindrical side wall 45 and a pair of circular or disc-like end-walls 46.
  • end walls are positioned directly inwards of the end walls 3
  • the central portions of the end walls 46 of the inner shell are provided with outwardly extending trunnions 48 and these are journalled in, and extend through, the bearings 33 and serve to support the inner shell so that it is rotatable relatively to the outer shell.
  • the cylindrical side wall 45 of the inner shell embodies inwardly projecting longitudinally extending ribs 49 for clothes tumbling purposes and has a rectangular opening It.
  • Thel'atter is closed by a door 5
  • the power mechanism I8 serves in connection with operation ofthe machine, to rotate the inner shell back and forth relatively to the outer shell and comprises a reversible electric motor 53 and speed reducing gearing between the motor and the inner shell.
  • the electric motor 53 embodies a conventional solenoid brake 54 and is mounted on a bracket 55 on the housing 34 that is adjacent the standard 2
  • the speed reducing gearing constituting part of the power mechanism l8 comprises a bevel pinion 56, a bevel gear 51, a pinion 58 and a gear 59.
  • the bevel pinion 56 is mounted on one end of the armature shaft of the electric motor 53 and meshes with and serves to drive the bevel gear 51.
  • the latter as shown in Figure 6, is mounted on the outer end of a horizontally extending shaft 60 which is positioned in parallel relation with the axis of the outer shell l6 and is supported by roller bearings 6
  • the pinion 55 is keyed or otherwise fixedly secured to the inner end of the shaft 60 and meshes with and serves to drive the gear 59.
  • Such gear is disposed in the housing 34 that is adjacent the standard 2i and has the hub thereof connected fixedly to the outer end of the adJacent trunnion 48..
  • embodies an enlargement 62 which serves to house the bevel pinion 5B, the bevel gear 51, the pinion 58 and also to support the bearings 6!
  • the electric motor 53 is driven in one di-' rection for a predetermined period of time and then in the opposite direction for a like period and hence causes the inner shell to rotate back and forth relatively to the outer shell;
  • the power mechanism It consisting of the reversible electric motor 53 and the speed reducing gearing between the motor and portions 24 of the standards in order that the devices 53 are permitted to swing laterally in parallel relation with the standards;
  • the brackets 55 are preferably in the form of metallic castings and project outwards and downwards from the base portions of the standards.
  • the hydraulic system 19 for swinging the outer shell l6 together with the inner shell l1. and the power mechanism l8 back and forth between its normal operating position and its discharging position comprises a pair of cylinder and 'piston devices 63 and these are located directly'outwards of the standards of the supporting structure l5 and consists of cylinders 54 and pistons 65.
  • the lower ends of the cylinders are pivotally connected to brackets 58 on the base spaced apart fixed bearings 50.
  • the lower ends of the cylinders 64 are closed by fixed caps 59 a which embody diametrically opposite pintles ll.
  • the latter are Journalled in the bearings 88 and together with said bearings form the pivotal connections between the cylinders 54 and the brackets 66,
  • the upper ends of the cylinders 54 are closed by means of cup shaped caps H which are connected in place by screw thread connections (not shown) and have centrally disposed stumng boxes (also not shown).
  • the pistons of the piston and cylinder devices are mounted in the cylinders 64 for longitudinal sliding movement and embody fixedly connected upstanding piston rods 12 which extend slidably through the stuillng boxes in the cup shaped caps II.
  • the upper ends of the piston rods are pivotally connected to brackets 13 on the central portions of the housings 34 by means of sleeve-like elements 14 and pins 15.
  • the brackets I3 are suitably attached or connected to the central portions of the housings 34 and carry the pins .15 so that they are in axial alignment with the trunnions 45 of the end wallsof the inner shell II.
  • the sleeve-like elements 1.4 are fixedly connected to the upper ends of the piston rods and are rotatably mounted on the pins I5, as shown in Figure 6.
  • the cylinder and piston devices 63 swing laterally with the plntles II as articulation points.
  • the stroke of the pistons 55 is such that the outer shell it in connection with swinging thereof, either into or out of its discharging position, swings throughout substantially an arc of 90.
  • the trunnions 43 are horizontally aligned with the shaft 28 and when the outer shell is in its discharging position wherein the opening in the side wall thereof faces downwards the trunnions 48 are vertically aligned with said shaft 28.
  • the gear pump 18 is mounted on the outer wall of the base portion 24 of the standard 2
  • the gears is connected for drive by a unidirectional electric motor 80 which is mounted on the outer wall of the base portion 24 of the standard 2
  • the conductor 8I includes a normally open switch 83 consisting of a pair of fixed spaced apart contacts 84 and 85 and a bridge 86 for the two contacts.
  • the bridge is urged away from the contacts by a compression spring 81 and has a push button 88 whereby it may be shifted against the force of the spring into a closed position wherein it cross connects the two contacts 84 and 85 and results in flow of current to the electric motor 80.
  • the switch 83 When the switch 83 is in its closed position the motor 80 operates to drive the gear pump 16.
  • the casing 18 or the pump includes an inlet port 89 and an outlet port 90.
  • the control valve 11 is mounted on the upper extremity of the front arm 25 of the standard 2
  • the casing extends at right angles to the standard 2
  • of the con trol valve 11 has four ports 95. 96, 91 and 98.
  • the ports 95-and 98 are formed in the side portions of the casing 9
  • the port 96 is formed in the upper portion of the control valve casing 9
  • the fourth port, 1. e., port 91 is formed in the bottom portion of the casing 9
  • the plug 92 fits-rotatably in the bore 93 and has at its outer end a stem 99 which, as shown in Figure 8, projects into the cup shaped case 94 on the outer end of the valve casing 9
  • An upstanding lever I00 serves as a medium for rotating the plug 92.
  • the lower end of the lever is disposed in the case 94 and is connected to the outer end of the stem 99 by a collar IOI.
  • the central portion of the lever extends through an arcuate slot in the annular cylindrical side wall of the case 94.
  • the plug 92 of the control valve embodies a pair of oppositely disposed arcuate grooves I02 and I03 and these are positioned in alignment with the ports in the valve casing and are separated by a pair of lands I04 and I05.
  • the lands are arranged so that when the lever I00 is positioned vertically in what may be termed a neutral position the land I04 closes the port 98 and the land I05 closes the port 91.
  • the arcuate grooves I02 and I03 are so arranged that when the lever MI is swung in a clockwise direction as viewed in Figure '7 the groove I02 establishes communication between the ports 95 and 91 and the groove I03 establishes communication between the ports 96 and 88.
  • the two grooves are also so arranged that when between the ports 91 and 98.
  • the switch 83 for controlling operation of the gear pump driving electric unidirectional motor 16 is disposed in the lower portion of the case 94 and is positioned so that the push button 88 thereof is located under the collar IOI between the lower end of the lever I00 and the outer end of the plug stem 89.
  • the collar is provided at the bottom thereof with a flat I06 against which the switch button 88 abuts when the lever and plug are in their neutral position wherein the land I04 closes the port 96 and the land I05 closes the port 91.
  • the pipe arrangement constituting part of the hydraulic system I9 for swinging the outer shell together with the inner shell and the power mechanism back and forth between its normal operating position and its discharging position comprises pipes I01, I08, I09, IIO, III, H2 and H3.
  • One end of the pipe I01 leads to the base portion 24 of the standard 2
  • is hollow and, as shown in Figure 5, forms a reservoir II4 for a body or column of oil.
  • Said other end of the pipe I01 is so positioned that it communicates with the lower portion of the body or column of oil in the reservoir H4,
  • the pipe I08 extends between the gear pump 16 and the valve 8
  • the pipe I08 is connected to the outlet port 90 in the gear pump casing 18 and the other end of said pipe is connected to the port in the casing 9
  • the pipe I09 is connected to, and leads from, the port 96.
  • the pipe I I0 is in the form of a branch pipe. It is connected to the discharge end of the pipe I09 and has its ends connected to the lower ends of the cylinders 64 of the cylinder and piston devices 63.
  • the pipe III is connected to, and leads from, the port 91 in the control valve casing 9
  • the pipe H2 is in the form of a branch pipe as shown in Figure 10. It is connected to the discharge end of the pipe I I I and leads to the upper ends of the cylinders 84.
  • the pipe II3 serves as a return pipe and has one end thereof connected to the port 98 and its other end leading into the reservoir H4 in the base portion 24 of the standard 2
  • the switch 83 is automatically closed and sets in motion the unidirectional electric motor 80 which in turn drives the gear pump 16 so that the latter pumps oil under pressure into the upper ends of the cylinders 64 via pipe I08, port 95, groove I02, port 91, pipe III and Entrance of fluid under pressure into the upper ends of the cylinders 64 of the cylinder and piston devices 63 results in the pistons 65 sliding downwards and causing the outer shell I6 to swing rearwards and downwards into its normal operating position.
  • the pipe I 08 between the outlet port 90 in the pump casing I8 and the port 95 in the valve casing 91 is provided with a relief valve II5, the outlet port of which communicates with the reservoir II4 by way of a pipe II6.
  • a relief valve II5 the outlet port of which communicates with the reservoir II4 by way of a pipe II6.
  • the means 20 for supplying the outer shell I6 with water when the outer shell is in its normal operating position comprises a T-fltting Ill and a pipe section H8.
  • the T-fitting III consists of apair of aligned inlet branches H9 and I20 and an intermediate outlet branch I2I and is fixedly mounted on the central portion of the bar 29 of .the supporting structure I5-so that the inlet branches are disposed in parallel relation with the outer shell I6 and the outlet branch I2I extends horizontally towards the outer shell.
  • the inlet branch I I9 of the T-fitting' I I1 is connected to a hot water pipe I22 by way of a valve I23 and the inlet branch I20 is connected to a cold water pipe I24 by way of a valve I25.
  • the outer end of the outlet branch I2I of the fitting II! is canted so that it is inclined upwards and rearwards and has an annular groove I26 with a sealing gasket I21 therein.
  • the pipe section "-8 is fixedly connected to the central rear portion of the-side wall 30 of the outer shell I6 and communicates with the-interior of the outer shell.
  • the outer or rear end of the pipe section I I8 is canted so that it is medium of the piston rods 12 to swing the outer l0 inclined downwards and forwards, and isso arranged that it seats against the gasket I21 when the outer shell IGis in its normal operatingmosition.
  • the pipe section is free to swing with the outer shell in Y connection with swinging'of. the latter into its discharging position.
  • the pipe section II 8 effects communication between the T-fitting Ill and the interior of the outer shell and hence water may be introduced into the interior of the inner shell from hot water pipe I22 or cold water pipe I24, or'both pipes.
  • the door 40 When the outer shell I6 is in its normal operating position and it. is desired to use the machinethe door 40 is first slid upwards into its open posi-* tion wherein its exposes the opening 39 in the front upper portion of the side wall 30 of the outer shell. Thereafter the inner shell I! is rotated by proper control of the power mechanism I8 into a position wherein the opening 50 in the side wall thereof is in registry with the opening 39 in the side wall of the outer shell. Thereupon the door 5I for the opening is slid into its open position and the interior of the inner shell is charged with clothes and other articles to be washed via the openings 39 and 50. After charging of the inner shell the doors 6
  • the power mechanism I8 After filling the outer shell to the desired height the power mechanism I8 is set in motion by supplying current to the three phase reversible motor 53. During operation of the motor the inner shell I! within the outer shell rotates back and forth for clothes washing purposes. After the clothes have been washed the power mechanism 'l8 is stopped and the dump valve 38 is opened so as to discharge the water from the interior of the inner shell. Thereafter the door 40 is opened and the inner shell is rotated until its opening 50 is in registry with the opening 39 in the side wall of the outer shell. Upon effecting registration of the openings 50 and 39 the door 5
  • a washing machine of the character described comprising a supporting structure, an outer shell having an access opening therein and provided with means whereb it is mounted on the supporting structure so that it is capable of being moved bodily back and forth between a normal operating position wherein the access opening faces upwards and a discharging position wherein the access opening faces downwards, an inner shell within the outer shell provided with a door closed access opening, adapted to hold the articles to be washed and supported so that it is rotatable relatively to the outer shell, and power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell.
  • a washing machine of the character described comprising a supporting structure, a horizontally elongated outer shell having an access opening in the side wall thereof and provided with means whereby it is mounted onthe supporting structure so that it is capable of being swung bodily about a horizontal axis back and forth between a.
  • a horizontally elongated inner shell within the outer shell provided with a door closed access opening, adapted to hold the articles to be washed and supported at its ends so that it is rotatable relatively to the outer shell, and power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer scribed, comprising a supporting structure, a cylindrical horizontally extending outer shell having an access opening in the side wall thereof, adapted normally to assume an operating position wherein said opening faces forwards and upwards and pivotally mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis upwards and forwards from its normal operating position into a discharging position wherein said opening faces downwards, and then back again, a cylindrical horizontally extending inner shell for the articles to be washed positioned concentrically within the outer shell, provided with a door closed access opening in its side wall and supported at its ends so that it
  • a washing machine of the character described comprising a supporting structure in the form of a pair of laterally spaced U-shaped standards, a cylindrical horizontally extending outer shell extending lengthwise between the 12 standards, having an access opening in its side wall, adapted normally to assume an operating position wherein the access opening faces upwards and forwards and having the front portion thereof pivotally connected to the front arms of the standards so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening faces downwards, and then back again into said operating position, means between the rear portion of the outer shell and the rear arms of the standards for supporting said-outer shell when it is in its operating position, a cylindrical horizontally extending inner shell for the articles to be washed positioned concentrically within the outer shell, provided with a door closed access opening in its side wall and supported at its ends so that it is rotatable relatively to the outer shell, and power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell.
  • a washing machine of the character described comprising a supporting structure in the form of a pair of laterally spaced U-shaped' standards and a shaft between the upper extremities of the front arms of the standards, a cylindrical horizontally disposed outer shell extending longitudinally between the two standards, provided with an access opening in its side wall, adapted normally to assume an operating position wherein the access opening faces forwards and upwards, and having the front portion thereof pivotally connected to the shaft so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening faces downwards, and then back again into its said operative position, means between the rear portion of the outer shell and the upper extremities of the rear arms of the standards for supporting the outer shell in its normal operating position, a cylindrical horizontally extending inner shell for the articles to be washed positioned concentrically within the outer shell,
  • a washing machine of the character described comprising a supporting structure, an outer shell having an access opening therein and provided with means whereby it is mounted on the supporting structure so that it is capable of being moved bodily back and forth between a normal operating position wherein the access opening faces upwards and a discharging position wherein the access opening faces downwards, an inner shell within the outer shell provided with a door closed access opening, adapted to hold the articles to be washed and supported so that it is rotatable relatively to the outer shell.
  • a washing machine of the character described comprising a supporting structure, a horizontally elongated outer shell having an access opening in the side wall thereof and provided with means whereby it is mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis back and forth beaaaacaa Q l3 tween a normal operating position wherein, the access opening faces upwards and a discharging position wherein the access opening faces downwards, a horizontally elongated inner shell within the outer shell provided with a door closed access opening, adapted to hold the articles to b washed and supported at its ends so that it is rotatable relatively to the outer shell, power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell, and hydraulic means between the supporting structure andouter shell .for swinging said outer shell together with the inner shell and power mechanism back and forth between said-positions.
  • a washing machine obthe character described, comprising a supporting structure, a horizontally elongated outer shell having an access opening in the side wall thereof and provided with means whereby it is mounted on the supporting structure so that it is capable-of being swung bodily about a horizontal axis back and forth between a normal operating position wherein the access opening faces upwards and a discharging position wherein the access opening faces downwards, a horizontally elongated inner shell within the outer shell provided with a door closed access opening, adapted to hold the arti-' cles to be washed and supported at its ends so that it is rotatable relatively to the outer shell, power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell. and cylinder and cooperating piston means extending between the supporting structure and the outer shell and adapted to move I said outer shell back and forth between said positions in response to delivery and withdrawal of an hydraulic medium to and from the cylinder.
  • a washing machine of the character described, comprising a supporting structure, a horizontally elongated outer shell having an access opening in the side wall thereof and'provided with means whereby it is mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis back and forth between a normal operating position where;
  • a cylindrical horizontally extending outer shell having-an access opening in the sidewall thereof, adapted-normally to assume an operating position wherein said opening faces forwards and upwards, and pivotally mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis upwards and forwards from its normal operating position into a discharging position wherein said opening faces downwards, and then back again, a cylindrical horizontally extending innershell for the articles to be washed positioned concentrically within the outer shell, provided with a: door closed access opening in its side wall and supported at its ends so that it ,is rotatable relatively to the outer shell, power mechanism for rotating the inner shell, and hydraulic means for swinging the outer shell back and forth between its positions embodying a pair of upstanding cylinder and piston devices positioned outwards of the end walls of the outer shell and having'the lower ends thereof and forwards and having the front portion thereof pivotally connected to the front arms of the standards so that it is capable of being swung upwards
  • a washing machineof the character described comprising 'a supporting structure in the format apa'ir of laterally spaced U-shaped standaeeaas ards and a shaft between the upper extremities of the fr 'nt arms of the standards, a cylindrical horizontaly disposed outer shell extending 1ongitudinally between the two standards, provided with an access opening in its side wall, adapted normally to assume an operating position wherein the access opening faces forwards and upwards, and having the front portion thereof pivotally connected to the shaft so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening laces downwards, and then back into its said operative position, means between the rear portion of the outer shell and the upper extremities of the rear arms of the standards for supporting the outer shell inits normal operating position, a cylindrical horizontally extending inner shell for the articles to be washed positioned concentrically within the outer shell, provided with a door closed access opening in its side wall, and supported at its ends so that it is rotatable
  • a washing machine of the character de- 16 opening faces upwards and forwards and having the front portion thereof pivotally connected to the front arms of the standards so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening faces downwards, and then back again into said operating position, a cylindrical horizontally extending foraminous inner shell for the articles to be washed positioned concentrically within the outer shell.
  • a washing fluid comprising a fitting mounted rigidly on the bar and provided with an outlet facing towards the side wall of the outer shell, and a separate pipe section connected'rig idly to the side wall of, and in communication with the interior of, the outer shell and arranged and positioned so that it is automatically swung into registry with the fitting outlet when the outer shell is bodily swung from its discharging position into its normal operating position.

Description

March 2, 1948. H. c. ELLIS 2,436,883
WASHING MACHINE WITH PIVOTALLY SUPPORTED OUTER AND INNER SHELLS AND POWER MEANS ON THE OUTER SHELL FOR ROTATING THE INNER SHELL' Filed Nov. 2'1. 1944 v Sheets-Sheet 1 March 2, 1948. I H. C.'ELLIS I 2,436,883
WASHING MACHINE WITH PIVOTALLY SUPPORTED OUTER AND INNER SHELLS AND POWER MEANS ON THE OUTER SHELL FOR ROTATING THE INNER SHELL Filed Nov. 27,. 1944 7 Sheets-Sheet 2 March 2,1948. "H QELLIS 2,436,883
WASHING MACHINE WITH PIVOTALLT SUPPORTED OUTER AND INNER SHELLS AND POWER MEANS ON THE OUTER SHELL FOR ROTATING THE INNER SHELL I Filed Nov. 27, 1944 7 Sheets-Sheet S March 2, 1948. H. c. ELLIS' 2,436,883
WASHING MACHINE WITH PIVOTALLY SUPPORTED OUTER AND INNER SHELLS AND I POWER MEANS ON THE OUTER SHELL FOR ROTATING THE INNER SHELL Filed Nov. 27, 1944 7 Sheets-Sheet 4 March 2 1948. N c. ELLIS 2,436,
MACHINE anvo'r ORTED 0mm AND 1mm SHELLS AND TING THE ELL WASHIIG INNER SH Y S POWER MEANS THE OUTER SHE FOR ROTA v Filed Nov. 27,1944 '7 Sheets-Sheet 5 91 4520972757 5 Hider? 611755 March-2, 1948. H. c-. ELLIS 2,436,883
WASHING MACHINE WITH PIVOTALLY SUPPORTED OUTER AND INNER SHELLS AND POWER MEANS ON THE OUTER SHELL FOR ROTATING THE Filed Nov. 27, 1944 INNER SHELL 7 Sheets-Sheet 6 March 2, 1948. c 5 2,436,883
WASHING MACHINE WITH PIVOTALLY S UPPORTED OUTER AND INNER SHELLS AND POWER MEANS ON THE OUTER SHELL FOB ROTATING THE INNER SHELL Filed Nov. 27, 1944 7 Sheets-Sheet 7 Patented Mar. 2, 1948 POWER MEANS ON THE OUTER SHELL 'FOR ROTATING THE INNER SHELL Hubert 0. Ellis, 'Evanston, Ill., assignor to The Ellis Drier 00., Chicago, 111., a corporation of Illinois Application November 27, 1944, Serial No; 565,234
In general the present invention relates to machines for washing clothes and like articles. More particularly the invention relates to that type of washing machine which is of comparatively large capacity and as its principal components or parts comprises: (1) a cylindrical horizontally extending outer shell which is provided with means for supplying it with a washing fluid, such as water,
and embodies at the upper portion of its side wall a door closed opening and at its bottom a dump valve for ridding it of water after a washing operation; (2) a cylindrical horizontally extending foraminous inner shell which is adapted to hold the clothes and like articles to be washed, has means for supporting it so that it is rotatable about its longitudinal axis relatively to the outer shell, and embodies a door closed opening for permitting the clothes to be inserted into and removed from the interior of the inner shell when such, opening is in registry with the opening in the outer shell and its door and the door for the outer shell opening are open;- and (3) power mechanism which is associated with the outer shell, serves when in operation to rotate the inner shell back and forth and consists of a reversible electric motor and speed reducing gearing be tween the motor, and the inner shell.
One object of the invention is to provide a washing machine of this type which is an improvement upon, and has certain inherent advantages over, previously designed machines and is characterized by the fact that it may be operated with greater facility and at a greater speed.
Another object of the invention is to provide a washing machine of the type under consideration in which the power mechanism for rotating the i V inner shell back and forth is mounted entirely on the outer shell and the outer shell is pivotally connected to a stationary supporting structure so that it may be swung bodily upwards throughout substantially an arc of 90 into a discharging position wherein the openingin its side wall faces downwards.
Another object of the invention is to provide a washing machine of the last mentioned type and character which includes a comparatively simple hydraulic system for swinging the cylindrical outer shell back and forth between its normal operating position and its discharging position.
A further object of the invention is to provide a washing machine of the type and character under consideration in which the means for sup-' plying the outer shellwith water comprises a fltting which is mounted on the stationary supporting structure and has an outlet, and also com- 2 prises a pipe section which is mounted fixedly on, and in'communication with the interior of, the
outer shell and is arranged so that it registers with the outlet of the fitting when the outer shell is in its normal operating position.
A still further object of the invention is to provide a' washing machine which is generally of new and improved constructionand effectively and efficiently accomplishes its intended purpose.
Other objects of the invention and the vairous advantages and characteristics of the present washing machine will be apparent from a conin its normal operating position";
sideration of the following description.
The invention consists in the several novel features which are hereinafter set forth, and are 'more particularly defined by claims at the conclusion hereof.
In the drawings which accompany and form a Figure 4 is an end view showing the elite ell H Figure 5 is a vertical transverse section on the line 5-5015 Figure 1;
Figure 6 is an enlarged fragmentary vertical longitudinal section taken on the line 6-6 of Figure 4 and illustrating in detail the construction,
. arrangement and manner of mounting of the power mechanism for rotating the inner shell back and forth relatively to the outer shell;
Figure 7 is an end view of the control valve for' .the hydraulic system that serves to swing the outer shell back and forth between'its normal operating position and its discharging position;
Figure 8 is an enlarged vertical longitudinal sectional view of the control valve, taken on the line 8 -8 of Figure 7;
Figure 9 is a vertical transverse section of the valve taken on the line's-4 of Figure 8;
Figure 10 is a diagrammatic view of the hydraulic system;
Figure 11 is a diagrammatic view of the electrical circuit for the gear pump driving electric motor of the hydraulic system;
Figure 12 is a plan view of the fitting and pipe section constituting the means for supplying the outer shell with water; and
Figure 13 is a. section on the line |3I3 of Figure l2.
The machine which is shown in the drawings constitutes the preferred form orembodiment of the invention. It is primarily designed for use in a commercial or large sized laundry, serves as a medium for washing clothes and like articles and comprises a supporting structure IS. a cylindrical horizontally extending outer shell It, a cylindrical horizontally extending inner shell l1, power mechanism I8 for operating the inner shell, 9. system l9 of the hydraulic variety for swinging the outer shell together with the inner shell and the power mechanism back and forth between a normal operating position and a discharging position, and means 20 for supplying the outer shell with a washing fluid, suchas water. when the outer shell is in its normal operating position.
The supporting structure I is adapted to rest on, and be fixedly secured to, the floor of the laundry or other establishment in which the washing machine is used. It remains stationary when in use and consists of a pair of laterally spaced U-shaped standards 2| and 22 and a plurality of tie rods 23 between the two standards. The two standards are positioned in horizontal alignment and embody base portions 24, upstanding front arms 25 and upstanding rear arms 26. They are preferably in the form of -metallic castings and have floor engaging feet 21 on the bottom of their base portions 24. The tie rods 23 serve fixedly to space apart thetwo standards 2| and 22 and have the ends thereof suitably secured to the arms and base portions of the standards. In addition to the parts heretcfore mentioned the supporting structure l5 comprises a horizontally extending shaft 28 and a bar 29. The shaft 28 extends between, and is fixedly connected to, the upper extremities of the front arms 25 of the two standards. The bar 29 is disposed in parallel relation with the shaft 28 and extends between, and is suitably secured to, the upper extremities of the rear arms 26 of the standards 2| and 22.
The outer shell I3 is positioned between the U-shaped standards 2| and 22 of the supporting structure I5 and embodies a cylindrical side wall 30 and a pair of circular or disc-like end walls 3|. As shown in Figure 1 the end walls 3| are the holedefining portions of the end walls 3|.
The housings 34 serve to house the bearings 33 'andare positioned centrally with respect to the end walls. They overlie the standards of the supporting structure and have on the free margins of their side walls radially extending flanges 31 which fit flatly against, and are bolted to. the outer faces of the end walls 3|. The outer shell |6is adapted in connection with operation of the f iiaeuine to be charged with water by way of the supply means 20 and embodies a dump valve 38 whereby the water may be discharged from the interior of the outer shell at the conclusion of a washing operation. The dump valve 38 is of any suitable variety or type and is connected to the a provided with inwardly extending annular flanges bottom portion of the side wall 30 of the outer shell. The side wall 30 embodies in the front upper portion thereof a rectangular opening 33 and this is closed by a door 40. The latter is arcuate in cross section and is mounted by way of arcuate end tracks or guides 4| in order that it may be slide upwards and circumferentially with respect to the side wall of the outer shell into an open position wherein it exposes the opening 39 for clothes charging and discharging purposes. The lower marginal portion of the door is provided with suitable latches for locking the door in its closed position. The front central portions of the inwardly extending flanges 32 on the end walls 3| are provided with collar-like elements 42 and these surround the ends of the shaft 28 of the supporting structure I5 and form pivotal connections for the outer shell whereby the latter is permitted to swing bodily upwards through substantially an arc of into a discharging position wherein 'the opening in its side wall faces downwards, as shown in Figure 3. The outer shell I6 is supported in its normal operat- 'ing position by means of a pair of pins 43 and a of the supporting structure and the hooks 44 are connected to, and project rearwards from, the rear central portions of the flanges 32 on the-end walls 3| of the outer shell and are adapted to rest on the inner ends of the pins when the outer shell is in its normal operating position. It is contemplated that the machine will be charged with the clothes and like articles to be washed while the outer shell is in its normal operating position and the power mechanism I8 is at rest. After charging of the machine the mechanism I3 is set in motion for clothes washing purposes. At the end of the clothes washing operation the power mechanism I8 is stopped and the door 40 is slid into its open position so as to expose the opening 39 in the upper front portion of the side wall 30 of the outer shell. After sliding the door into its open position the outer shell is swung upwards and forwards into its discharging position wherein the opening 39 faces downward and permits the clothes and other articles to fall bygravity out of the outer shell. After discharge of the clothes and other articles the outer shell is swung rearwards and downwards into its normal operating position wherein it is supported as a result of the hooks 44 resting on the inner ends of the pins 43.
The inner shell I1 is disposed concentrically within the outer shell I6 and is adapted to hold the clothes and other articles during a. washing operation. It is driven or rotated as hereinafter described by the power mechanism i8 and consists of a. fora'minous cylindrical side wall 45 and a pair of circular or disc-like end-walls 46. The.
end walls are positioned directly inwards of the end walls 3| of the outer shell I6 and have outwardly extending flanges 41 which fit within, and are welded or otherwise fixedly secured to, the ends of the foraminous side wall 45. The central portions of the end walls 46 of the inner shell are provided with outwardly extending trunnions 48 and these are journalled in, and extend through, the bearings 33 and serve to support the inner shell so that it is rotatable relatively to the outer shell. The cylindrical side wall 45 of the inner shell embodies inwardly projecting longitudinally extending ribs 49 for clothes tumbling purposes and has a rectangular opening It. Thel'atter is closed by a door 5| which is nection with charging of the machine theinner shell, after first opening the door 40 for the opening 39 in the outer shell, is rotated until the opening 50 in the inner shell is in registry with the opening 39. Thereafter the door 5| is slid into its open position and the inner shell is charged with clothes and other articles to be washed. Upon closing of the doors 5| and 40 the machine is in readiness for a washing operation.
The power mechanism I8 serves in connection with operation ofthe machine, to rotate the inner shell back and forth relatively to the outer shell and comprises a reversible electric motor 53 and speed reducing gearing between the motor and the inner shell. The electric motor 53 embodies a conventional solenoid brake 54 and is mounted on a bracket 55 on the housing 34 that is adjacent the standard 2|. The speed reducing gearing constituting part of the power mechanism l8 comprises a bevel pinion 56, a bevel gear 51, a pinion 58 and a gear 59. The bevel pinion 56 is mounted on one end of the armature shaft of the electric motor 53 and meshes with and serves to drive the bevel gear 51. The latter, as shown in Figure 6, is mounted on the outer end of a horizontally extending shaft 60 which is positioned in parallel relation with the axis of the outer shell l6 and is supported by roller bearings 6|. The pinion 55 is keyed or otherwise fixedly secured to the inner end of the shaft 60 and meshes with and serves to drive the gear 59. Such gear is disposed in the housing 34 that is adjacent the standard 2i and has the hub thereof connected fixedly to the outer end of the adJacent trunnion 48.. The upper portion of the housing 34 that is adjacent the standard 2| embodies an enlargement 62 which serves to house the bevel pinion 5B, the bevel gear 51, the pinion 58 and also to support the bearings 6! in which the shaft 60 is journalled'. When the machine is in operation the electric motor 53 is driven in one di-' rection for a predetermined period of time and then in the opposite direction for a like period and hence causes the inner shell to rotate back and forth relatively to the outer shell; By reason of the fact that the power mechanism It consisting of the reversible electric motor 53 and the speed reducing gearing between the motor and portions 24 of the standards in order that the devices 53 are permitted to swing laterally in parallel relation with the standards; The brackets 55 are preferably in the form of metallic castings and project outwards and downwards from the base portions of the standards. They embody horizontally extending lower parts 61 and these, as best shown in Figure 6, embody pairs of the inner shell is mounted in its entirety on the outer shell IE it moves bodily with the outer shell in connection with swing of the latter back and forth between its normal operating position and its discharging position and hence it is at all times in operative or driving relation with the inner shell regardless of the position of the outer shell.
The hydraulic system 19 for swinging the outer shell l6 together with the inner shell l1. and the power mechanism l8 back and forth between its normal operating position and its discharging position, comprises a pair of cylinder and 'piston devices 63 and these are located directly'outwards of the standards of the supporting structure l5 and consists of cylinders 54 and pistons 65. The lower ends of the cylinders are pivotally connected to brackets 58 on the base spaced apart fixed bearings 50. The lower ends of the cylinders 64 are closed by fixed caps 59 a which embody diametrically opposite pintles ll. The latter are Journalled in the bearings 88 and together with said bearings form the pivotal connections between the cylinders 54 and the brackets 66, The upper ends of the cylinders 54 are closed by means of cup shaped caps H which are connected in place by screw thread connections (not shown) and have centrally disposed stumng boxes (also not shown). The pistons of the piston and cylinder devices are mounted in the cylinders 64 for longitudinal sliding movement and embody fixedly connected upstanding piston rods 12 which extend slidably through the stuillng boxes in the cup shaped caps II. The upper ends of the piston rods are pivotally connected to brackets 13 on the central portions of the housings 34 by means of sleeve-like elements 14 and pins 15. The brackets I3 are suitably attached or connected to the central portions of the housings 34 and carry the pins .15 so that they are in axial alignment with the trunnions 45 of the end wallsof the inner shell II. The sleeve-like elements 1.4 are fixedly connected to the upper ends of the piston rods and are rotatably mounted on the pins I5, as shown in Figure 6. When fiuid under pressure, such, for example, as oil, is introduced into the lower ends of the cylinders 64 while the upper ends of the cylinders are vented the pistons 65 together with the piston rods 12 are caused to slide upwards and result in the outer shell l6 together with the inner shell l1 and the power mechanism l8 being swung upwards and forwards from its normal operation position into its discharging position. When oil under pressure is introduced into the upper end of the cylinders while the lower ends of the cylinders are vented the pistons 55 and the piston rods 12 are slid downwards and cause the outer shell together with the parts associated therewith to swing rearwards and downwards into its normal operating position wherein it is supported by way of the pins 43 and the hooks 44. In connection with upward or downward sliding of the pistons and piston rods the cylinder and piston devices 63 swing laterally with the plntles II as articulation points. The stroke of the pistons 55 is such that the outer shell it in connection with swinging thereof, either into or out of its discharging position, swings throughout substantially an arc of 90. When the outer shell is in its normal operating position the trunnions 43 are horizontally aligned with the shaft 28 and when the outer shell is in its discharging position wherein the opening in the side wall thereof faces downwards the trunnions 48 are vertically aligned with said shaft 28. As a result of the fact that the trunnions 4a are in alignment with the silent: when 18, a control valve I1 anda particular pipe aranaaeaa rangement whereby oil under pressure may be delivered selectively into the lower ends of the cylinders 64 or into the upper ends of the cylinders. The gear pump 18 is mounted on the outer wall of the base portion 24 of the standard 2| and, as shown in Figures 3 and 4, is located beneath the rear arm 26 of said standard. It is of convention-a1 design and consists of a casing 18 and a pair of meshing gears 19 in the casing. One of the gears is connected for drive by a unidirectional electric motor 80 which is mounted on the outer wall of the base portion 24 of the standard 2| and is supplied with current by a pair of conductors 8I and 82. The conductor 8I includes a normally open switch 83 consisting of a pair of fixed spaced apart contacts 84 and 85 and a bridge 86 for the two contacts. The bridge is urged away from the contacts by a compression spring 81 and has a push button 88 whereby it may be shifted against the force of the spring into a closed position wherein it cross connects the two contacts 84 and 85 and results in flow of current to the electric motor 80. When the switch 83 is in its closed position the motor 80 operates to drive the gear pump 16. The casing 18 or the pump includes an inlet port 89 and an outlet port 90.
The control valve 11 is mounted on the upper extremity of the front arm 25 of the standard 2| and comprises a horizontally elongated casing 9| and a cylindrical plug 92. The casing extends at right angles to the standard 2| and has the inner end thereof fixedly secured in any suitable manner to the upper extremity of the front arm 25 of said standard. It embodies a cylindrical centrally disposed longitudinally extending bore 93 and has a cup shaped sheet metal case 94 at its outer end. In addition to the case thecasing' 9| of the con trol valve 11 has four ports 95. 96, 91 and 98. As shown in Figure 9, the ports 95-and 98 are formed in the side portions of the casing 9|, are positionedone diametrically opposite the other and lead outwards from the cylindrical bore 93. The port 96 is formed in the upper portion of the control valve casing 9| and communicates with, and leads outwards from, the bore 93. The fourth port, 1. e., port 91, is formed in the bottom portion of the casing 9|, communicates with the bore 93 and is positioned diametrically opposite the port 96. The plug 92 fits-rotatably in the bore 93 and has at its outer end a stem 99 which, as shown in Figure 8, projects into the cup shaped case 94 on the outer end of the valve casing 9|.
An upstanding lever I00 serves as a medium for rotating the plug 92. The lower end of the lever is disposed in the case 94 and is connected to the outer end of the stem 99 by a collar IOI. As shown in Figure 8, the central portion of the lever extends through an arcuate slot in the annular cylindrical side wall of the case 94. The plug 92 of the control valve embodies a pair of oppositely disposed arcuate grooves I02 and I03 and these are positioned in alignment with the ports in the valve casing and are separated by a pair of lands I04 and I05. The lands are arranged so that when the lever I00 is positioned vertically in what may be termed a neutral position the land I04 closes the port 98 and the land I05 closes the port 91. The arcuate grooves I02 and I03 are so arranged that when the lever MI is swung in a clockwise direction as viewed in Figure '7 the groove I02 establishes communication between the ports 95 and 91 and the groove I03 establishes communication between the ports 96 and 88. The two grooves are also so arranged that when between the ports 91 and 98. The switch 83 for controlling operation of the gear pump driving electric unidirectional motor 16 is disposed in the lower portion of the case 94 and is positioned so that the push button 88 thereof is located under the collar IOI between the lower end of the lever I00 and the outer end of the plug stem 89. The collar is provided at the bottom thereof with a flat I06 against which the switch button 88 abuts when the lever and plug are in their neutral position wherein the land I04 closes the port 96 and the land I05 closes the port 91. When the push button is in engagement with the flat the switch 83 is in its open position and the pump driving motor is, therefore, inoperative. When the flat I06 is rotated out of engagement with the switch button 88 in connection with either clockwise or counterclockwise swingin of the lever I00, the collar IOI operates to depress the button and hence closes the switch and results in operation of the motor 80 and resultant drive of the gear pump 16,
The pipe arrangement constituting part of the hydraulic system I9 for swinging the outer shell together with the inner shell and the power mechanism back and forth between its normal operating position and its discharging position comprises pipes I01, I08, I09, IIO, III, H2 and H3. One end of the pipe I01 leads to the base portion 24 of the standard 2| and the other end of the pipe I01 is connected to the inlet port 89 in the casing 18 of the gear pump 16. The base portion 24 of the standard 2| is hollow and, as shown in Figure 5, forms a reservoir II4 for a body or column of oil. Said other end of the pipe I01 is so positioned that it communicates with the lower portion of the body or column of oil in the reservoir H4, The pipe I08 extends between the gear pump 16 and the valve 8|. One end oi the pipe I08 is connected to the outlet port 90 in the gear pump casing 18 and the other end of said pipe is connected to the port in the casing 9| of the control valve 11. The pipe I09 is connected to, and leads from, the port 96. The pipe I I0 is in the form of a branch pipe. It is connected to the discharge end of the pipe I09 and has its ends connected to the lower ends of the cylinders 64 of the cylinder and piston devices 63. The pipe III is connected to, and leads from, the port 91 in the control valve casing 9|. The pipe H2 is in the form of a branch pipe as shown in Figure 10. It is connected to the discharge end of the pipe I I I and leads to the upper ends of the cylinders 84. The pipe II3 serves as a return pipe and has one end thereof connected to the port 98 and its other end leading into the reservoir H4 in the base portion 24 of the standard 2|. When the valve controlling lever I00 is swung in a counterclockwise direction from its neutral or vertical position so as to cause the plug groove I02 to establish communication between the ports 95 and 96 and the groove I03 to establish communication between the ports 91 and 98, the switch 83 is automatically closed, as hereinbeiore pointed out, and as a result sets in operation the motor 80 which, in turn, drives the pump 18 so that it supplies oil under pressure into the lower ends of the cylinders 64 via pipe I08, port 95, plug groove I02, port 96, pipe I09 and branch pipe IIO. As soon as the oil under pressure is introduced into the lower ends of the cylinders 84 the pistons branch pipe I I2.
shell I6 together with the parts associated therewith upwards and forwards into its discharging position wherein, as previously pointed out, the opening 39 faces downwards. During the up stroke of the two pistons the upper ends of the cylinders are vented and the oil above the pistons flows back to the reservoir I I4 via branch pipe H2, pipe III, port 91, groove I03, port 98 and return pipe II 3. 'Whenthe lever I is swun from its neutral or vertical position in a clockwise direction as viewed in Figures '7 and 10, so as to cause the plug groove I02 to establish communication between-the ports 95 and 91 and the groove I03 to establish communication between the ports 91 and 98, the switch 83 is automatically closed and sets in motion the unidirectional electric motor 80 which in turn drives the gear pump 16 so that the latter pumps oil under pressure into the upper ends of the cylinders 64 via pipe I08, port 95, groove I02, port 91, pipe III and Entrance of fluid under pressure into the upper ends of the cylinders 64 of the cylinder and piston devices 63 results in the pistons 65 sliding downwards and causing the outer shell I6 to swing rearwards and downwards into its normal operating position. .During downward Sliding movement of the pistons in the cylinders the lower ends of the cylinders are vented and the oil beneath the pistons flows back to the reservoir I I4 via the branch pipe IIO, pipe I09, port 96, groove I03, port 98 and return pipe II3. When the control lever I00 is in its neutral position wherein the lands I04 and I05 close, respectively, the ports 96 and 91, the switch 83 is in its open position and the oil in the cylinders is locked with the result that the pistons remain stationary and hold the outer shell I6 in a fixed position. The pipe I 08 between the outlet port 90 in the pump casing I8 and the port 95 in the valve casing 91 is provided with a relief valve II5, the outlet port of which communicates with the reservoir II4 by way of a pipe II6. In the event that excessive pressure develops in the pipe I08 as a result of the operator of the machine failin to return the lever I00 to its neutral position after the outer shell I6 has been swung into its discharging position or into its normal operating position the relief valve II5 opens and the oil which is pumped by the gear pump flows back into the reservoir I I4 via the pipe 6.
The means 20 for supplying the outer shell I6 with water when the outer shell is in its normal operating position comprises a T-fltting Ill and a pipe section H8. The T-fitting III consists of apair of aligned inlet branches H9 and I20 and an intermediate outlet branch I2I and is fixedly mounted on the central portion of the bar 29 of .the supporting structure I5-so that the inlet branches are disposed in parallel relation with the outer shell I6 and the outlet branch I2I extends horizontally towards the outer shell. The inlet branch I I9 of the T-fitting' I I1 is connected to a hot water pipe I22 by way of a valve I23 and the inlet branch I20 is connected to a cold water pipe I24 by way of a valve I25. The outer end of the outlet branch I2I of the fitting II! is canted so that it is inclined upwards and rearwards and has an annular groove I26 with a sealing gasket I21 therein. The pipe section "-8 is fixedly connected to the central rear portion of the-side wall 30 of the outer shell I6 and communicates with the-interior of the outer shell. The outer or rear end of the pipe section I I8 is canted so that it is medium of the piston rods 12 to swing the outer l0 inclined downwards and forwards, and isso arranged that it seats against the gasket I21 when the outer shell IGis in its normal operatingmosition. As'a result of the manner in which" the outer end of the outlet branch I2I and the rear end of the pipe section II8 are cantedthe pipe section is free to swing with the outer shell in Y connection with swinging'of. the latter into its discharging position. When the outer shell is in its normal operating position the pipe section II 8 effects communication between the T-fitting Ill and the interior of the outer shell and hence water may be introduced into the interior of the inner shell from hot water pipe I22 or cold water pipe I24, or'both pipes.
When the outer shell I6 is in its normal operating position and it. is desired to use the machinethe door 40 is first slid upwards into its open posi-* tion wherein its exposes the opening 39 in the front upper portion of the side wall 30 of the outer shell. Thereafter the inner shell I! is rotated by proper control of the power mechanism I8 into a position wherein the opening 50 in the side wall thereof is in registry with the opening 39 in the side wall of the outer shell. Thereupon the door 5I for the opening is slid into its open position and the interior of the inner shell is charged with clothes and other articles to be washed via the openings 39 and 50. After charging of the inner shell the doors 6| and 40 are closed and water is introduced into the outer shell by way of the fitting II! and the pipe sec tion II8. After filling the outer shell to the desired height the power mechanism I8 is set in motion by supplying current to the three phase reversible motor 53. During operation of the motor the inner shell I! within the outer shell rotates back and forth for clothes washing purposes. After the clothes have been washed the power mechanism 'l8 is stopped and the dump valve 38 is opened so as to discharge the water from the interior of the inner shell. Thereafter the door 40 is opened and the inner shell is rotated until its opening 50 is in registry with the opening 39 in the side wall of the outer shell. Upon effecting registration of the openings 50 and 39 the door 5| is opened andthe lever I00 is swung in a counterclockwise direction as viewed in Figures '1 and 10. Such swinging of the lever I00 results in oil under pressure being introduced into the lower ends of the'cylinders 64 of the cylinder and piston devices 63 and the pistons 65 being slid upwards and effecting, through the medium of the piston rods I2, upward and forward swinging of the outer shell I6 into its discharging position. As soon as the outer shell reaches such position theclothes are automatically discharged by gravity through the openings 50 and 39. After the discharging operation the lever I00 is swung to its fullest extent in a clockwise direction as viewed in Figures '7 and 10 in order to cause the oil under pressure tov be introduced into the upperends of the cylinders 64 and the pistons resultantly to slide downwards and effect return of the outer shell to its normal operatin position. I As soon as the outer shell is washed clothes and other articles is concerned and is characterized by the fact that the power mechanism l8 for operating the inner shell is entirely mounted on the outer shell and hence is always in operative or driving relation with the inner shell regardless of whether the outer shell is in its normal operating position or its discharging position.
The invention is not to be understood as restricted to the details set forth since these may be modified within the scope of the appended claims without departing from the spirit and scope of the invention.
Having thus described the invention what I claim as new and desire to secure by Letters Patent is:
1. A washing machine of the character described, comprising a supporting structure, an outer shell having an access opening therein and provided with means whereb it is mounted on the supporting structure so that it is capable of being moved bodily back and forth between a normal operating position wherein the access opening faces upwards and a discharging position wherein the access opening faces downwards, an inner shell within the outer shell provided with a door closed access opening, adapted to hold the articles to be washed and supported so that it is rotatable relatively to the outer shell, and power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell.
2. A washing machine of the character described, comprising a supporting structure, a horizontally elongated outer shell having an access opening in the side wall thereof and provided with means whereby it is mounted onthe supporting structure so that it is capable of being swung bodily about a horizontal axis back and forth between a. normal operating position wherein the access opening faces upwards and a discharging position wherein the access opening faces downwards, a horizontally elongated inner shell within the outer shell provided with a door closed access opening, adapted to hold the articles to be washed and supported at its ends so that it is rotatable relatively to the outer shell, and power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer scribed, comprising a supporting structure, a cylindrical horizontally extending outer shell having an access opening in the side wall thereof, adapted normally to assume an operating position wherein said opening faces forwards and upwards and pivotally mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis upwards and forwards from its normal operating position into a discharging position wherein said opening faces downwards, and then back again, a cylindrical horizontally extending inner shell for the articles to be washed positioned concentrically within the outer shell, provided with a door closed access opening in its side wall and supported at its ends so that it is rotatable relatively to the outer shell, and power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell.
4. A washing machine of the character described, comprising a supporting structure in the form of a pair of laterally spaced U-shaped standards, a cylindrical horizontally extending outer shell extending lengthwise between the 12 standards, having an access opening in its side wall, adapted normally to assume an operating position wherein the access opening faces upwards and forwards and having the front portion thereof pivotally connected to the front arms of the standards so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening faces downwards, and then back again into said operating position, means between the rear portion of the outer shell and the rear arms of the standards for supporting said-outer shell when it is in its operating position, a cylindrical horizontally extending inner shell for the articles to be washed positioned concentrically within the outer shell, provided with a door closed access opening in its side wall and supported at its ends so that it is rotatable relatively to the outer shell, and power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell.
5. A washing machine of the character described, comprising a supporting structure in the form of a pair of laterally spaced U-shaped' standards and a shaft between the upper extremities of the front arms of the standards, a cylindrical horizontally disposed outer shell extending longitudinally between the two standards, provided with an access opening in its side wall, adapted normally to assume an operating position wherein the access opening faces forwards and upwards, and having the front portion thereof pivotally connected to the shaft so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening faces downwards, and then back again into its said operative position, means between the rear portion of the outer shell and the upper extremities of the rear arms of the standards for supporting the outer shell in its normal operating position, a cylindrical horizontally extending inner shell for the articles to be washed positioned concentrically within the outer shell,
provided with a door closed access opening in its side wall and supported at its ends so that it is rotatable relatively to the outer shell, and power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell.
6. A washing machine of the character described, comprising a supporting structure, an outer shell having an access opening therein and provided with means whereby it is mounted on the supporting structure so that it is capable of being moved bodily back and forth between a normal operating position wherein the access opening faces upwards and a discharging position wherein the access opening faces downwards, an inner shell within the outer shell provided with a door closed access opening, adapted to hold the articles to be washed and supported so that it is rotatable relatively to the outer shell. power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell, and power means for moving the outer shell together with the inner shell and powermechanism back and forth between said positions.
' '7. A washing machine of the character described, comprising a supporting structure, a horizontally elongated outer shell having an access opening in the side wall thereof and provided with means whereby it is mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis back and forth beaaaacaa Q l3 tween a normal operating position wherein, the access opening faces upwards and a discharging position wherein the access opening faces downwards, a horizontally elongated inner shell within the outer shell provided with a door closed access opening, adapted to hold the articles to b washed and supported at its ends so that it is rotatable relatively to the outer shell, power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell, and hydraulic means between the supporting structure andouter shell .for swinging said outer shell together with the inner shell and power mechanism back and forth between said-positions.
8. A washing machine obthe character described, comprising a supporting structure, a horizontally elongated outer shell having an access opening in the side wall thereof and provided with means whereby it is mounted on the supporting structure so that it is capable-of being swung bodily about a horizontal axis back and forth between a normal operating position wherein the access opening faces upwards and a discharging position wherein the access opening faces downwards, a horizontally elongated inner shell within the outer shell provided with a door closed access opening, adapted to hold the arti-' cles to be washed and supported at its ends so that it is rotatable relatively to the outer shell, power mechanism for rotating the inner shell, mounted entirely on, and movable bodily with, said outer shell. and cylinder and cooperating piston means extending between the supporting structure and the outer shell and adapted to move I said outer shell back and forth between said positions in response to delivery and withdrawal of an hydraulic medium to and from the cylinder.
that it isrotatable relatively to the outer shell, 'Dower mechanism for rotating the inner shell,
' said positions, and embodying an upstanding cylhoriz'ontally elongated outer shell having an ac- I cess opening in the side wall thereof and pro,- vided with means whereby it is mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis'back and forth between a normal operating position wherein the access opening faces upwards and a disI-. ,charging position wherein the access opening faces downwards, a horizontally elongated inner shell within the outer shell provided with a door.
closed access opening, adapted to hold the articles to be washed and supported at its ends so that it is rotatable relatively to the outer shell, power mechanism for rotating the inner shell, and hydraulic means between the supporting structure and the outer shell for swinging said outer shell back and forth between said positions, embodying an upstanding cylinder and coacting' piston device having the lower end thereof pivotally connected to thesupporting structure and its upper end connected to said outer shell.
10. A washing machine" of the character described, comprising a supporting structure, a horizontally elongated outer shell having an access opening in the side wall thereof and'provided with means whereby it is mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis back and forth between a normal operating position where;
' in the access opening faces upwards and a discles to be washed and supported at its ends so inder having the lower end thereof pivotally connected to the supporting structure and a piston slidably mounted in the cylinder and provided with an upstanding piston rod with the upper end thereofspivotally connected to said outer shelll v 11. A washing machine of the character described. comprising a supporting structure, a cylindrical horizontally extending outer shell having-an access opening in the sidewall thereof, adapted-normally to assume an operating position wherein said opening faces forwards and upwards, and pivotally mounted on the supporting structure so that it is capable of being swung bodily about a horizontal axis upwards and forwards from its normal operating position into a discharging position wherein said opening faces downwards, and then back again, a cylindrical horizontally extending innershell for the articles to be washed positioned concentrically within the outer shell, provided with a: door closed access opening in its side wall and supported at its ends so that it ,is rotatable relatively to the outer shell, power mechanism for rotating the inner shell, and hydraulic means for swinging the outer shell back and forth between its positions embodying a pair of upstanding cylinder and piston devices positioned outwards of the end walls of the outer shell and having'the lower ends thereof and forwards and having the front portion thereof pivotally connected to the front arms of the standards so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening faces .downwards, and then back again into said operating position, means between the rear-portion of the outer shell and the rear arms of the standards for supporting said outer shell when it is in its 'operating'position, a cylindrical horizontally extending'inner shell for the articles to be washed positioned concentrically within the outer shell, provided with a doorclosed access opening in its side wall and supported at its ends so that it is rotatable relatively to the outer shell, power mechanism for'rotating the inner shell, and hydraulic means for swinging the outer shell back and forth between said positions embodying a pair of upstanding cylinder and cooperating piston devices positioned adjacent the standards,
respectively, and having-the lower ends thereof pivotally connected to the'lower portions of the standardsand their upper ends pivotally connected to the end walls of said outer shell.
13. A washing machineof the character described, comprising 'a supporting structure in the format apa'ir of laterally spaced U-shaped standaeeaaas ards and a shaft between the upper extremities of the fr 'nt arms of the standards, a cylindrical horizontaly disposed outer shell extending 1ongitudinally between the two standards, provided with an access opening in its side wall, adapted normally to assume an operating position wherein the access opening faces forwards and upwards, and having the front portion thereof pivotally connected to the shaft so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening laces downwards, and then back into its said operative position, means between the rear portion of the outer shell and the upper extremities of the rear arms of the standards for supporting the outer shell inits normal operating position, a cylindrical horizontally extending inner shell for the articles to be washed positioned concentrically within the outer shell, provided with a door closed access opening in its side wall, and supported at its ends so that it is rotatable relatively to the outer shell, power mechanism for rotating the inner shell, mounted entirely on,
and movable bodily, with said outer shell, and hydraulic means for swinging the outer shell back and forth between said positions, embodying a pair-of cylinder and coacting piston devices positioned outwards of. the standards, respectively, and having the lower ends thereof pivotally connected to the lower portions of the standards and the upper ends pivotally connected to the central portions of the end walls of the outer shell.
14. A washing machine of the character de- 16 opening faces upwards and forwards and having the front portion thereof pivotally connected to the front arms of the standards so that it is capable of being swung upwards and forwards into a discharging position wherein said access opening faces downwards, and then back again into said operating position, a cylindrical horizontally extending foraminous inner shell for the articles to be washed positioned concentrically within the outer shell. provided with a door closed access opening in its side wall and supported at its ends so that it is rotatable relatively to theouter shell, power mechanism for rotating the inner shell, and means for supplying the outer shell with a washing fluid comprising a fitting mounted rigidly on the bar and provided with an outlet facing towards the side wall of the outer shell, and a separate pipe section connected'rig idly to the side wall of, and in communication with the interior of, the outer shell and arranged and positioned so that it is automatically swung into registry with the fitting outlet when the outer shell is bodily swung from its discharging position into its normal operating position.
HUBERT C. ELLIS.
' REFERENCES CITED The following references are of record in the
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575673A (en) * 1946-10-10 1951-11-20 Miller Herman Washing machine of the cylindrical container, end discharge type
US3417583A (en) * 1967-04-27 1968-12-24 Cummings Landau Laundry Machin Automatic unloading washing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US154860A (en) * 1874-09-08 Improvement in machinery for washing, bleaching, and dyeing skins
US295715A (en) * 1884-03-25 Fruit and vegetable washer
US912038A (en) * 1907-12-28 1909-02-09 John W Seifert Washing-machine.
US1010436A (en) * 1909-10-28 1911-12-05 Andrew E Kenney Washing-machine.
US1128722A (en) * 1914-09-15 1915-02-16 Emil Renisch Washing-machine.
US1151990A (en) * 1913-11-08 1915-08-31 Troy Laundry Machinery Co Ltd Reversing mechanism for cylinder washing-machines.
US1400977A (en) * 1920-09-09 1921-12-20 Emanuel J Perry Washing-machine
US1793845A (en) * 1927-11-26 1931-02-24 Joseph A Dubord Power washing machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US154860A (en) * 1874-09-08 Improvement in machinery for washing, bleaching, and dyeing skins
US295715A (en) * 1884-03-25 Fruit and vegetable washer
US912038A (en) * 1907-12-28 1909-02-09 John W Seifert Washing-machine.
US1010436A (en) * 1909-10-28 1911-12-05 Andrew E Kenney Washing-machine.
US1151990A (en) * 1913-11-08 1915-08-31 Troy Laundry Machinery Co Ltd Reversing mechanism for cylinder washing-machines.
US1128722A (en) * 1914-09-15 1915-02-16 Emil Renisch Washing-machine.
US1400977A (en) * 1920-09-09 1921-12-20 Emanuel J Perry Washing-machine
US1793845A (en) * 1927-11-26 1931-02-24 Joseph A Dubord Power washing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575673A (en) * 1946-10-10 1951-11-20 Miller Herman Washing machine of the cylindrical container, end discharge type
US3417583A (en) * 1967-04-27 1968-12-24 Cummings Landau Laundry Machin Automatic unloading washing machine

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