US1850960A - Lifting device for power washers - Google Patents

Description

March 22, 1932'. A. G. MAcDoNELL 1,850,960

LIFTING DEVICE FOR POWER wAsHERs Filed-Dec. '4, 1929 Z5 Sheets-Sheet 1 INVENToR //om /Vamana BY 7h46 ATTOR N EY lVlarch'l 22, 1932.

A. G. MACDONELL 1,850,960

LIFTING DEVICE FOR POWER WASHERS Filed Dec. 4, 1929 5 Sheets-Sheet 2 |NvENToR BY//a/r Macda/VM 7m MIL ATTORN EY March 22, 1932. A. G. MACDONELI. l .1,850,960

LIFTING DEVICE FOR POWER WASHERS Filed Dec; 4, 1929 3 Sheets-Sheet 3 l /3 l l o *V5 t INVENTOR BY ///afr 6. Maw/0W# Patented Mar'. 22, 19,32v

UNITED STATES PATENTv OFFICE LIFTING DEVICE FOR POWER WASHEBS Application `tiled December 4, 1929. Serial No. 411,543.

The present invention relates to a new and simple lifting device for power washers.

i The object of the invention is to provide an arrangement whereby the unloading of the washer will be greatly facilitated.

Another object is to bring the washer into the unloading position without the use of manual power, savino' time thereby.

A further object 1s to provide a device 1H whereby the unloading is effected without undue tear and entanglmg of the wash.

Another object is to provide a washer, where the ossibility of an accident is eliminated, by s utting off the flow of steam andV hot water automatically for the time of unloading. l

A still further object is to provide aV power washer, which is simple in construction, easy to manipulate and economical in operation. With the above objects in view, which will fully appear as the invention is described, it being understood, that many changes may be made in the size, shape and proportion of the various parts within the scope of the appended claims, without departing from the spirit, or sacrificing any of the advantages of the invention, the same consisting of the combination, arrangement and construction of parts hereinafter described, pointed out in the appended claims and illustrated in the aceompanying drawings, in which:

Fig. 1 is a front view of a washer, partially in section, I

Fig. 2 is an end view of same, Fig. 3 is a detail of the automatic valve, Fig. 4 isa front elevation in the unloading position,

Fig. 5 is a front elevation of a modified arrangement of the same principle,

Fig. 6 is a front elevation of another modification and Fig. 7 is the end view of this modification. Referring first to Fig. 1 and Fig. 2 the numeral 1 indicates the outer stationary shell, 45 havin its two end heads 2 and 3 so arranged, that t ey form suitable guide blocks 4 and 5 allowing the shell with all attached to it, to slide up or down in the guides 6, which also form part of the frame. The center of 5 guide block 4 is bored at 4a to receive vthe hollo'w stub shaft 7 of the rotating drum von one end and solid shaft 7 a on the other end. One of these shafts or both will have a gear 9 of proper dimensions keyed to it, to receive the driving power through pinion 10,'which in4 turn is driven by motor 11 with the required speed reducing gears 12 and 13, all mounted on a shelf 14 which is supported on the ends on the guide blocks 5 and moving in unison up or down with the shell 1. On both ends of the machine there is a water, air or lsteam operated cylinder 15 and 16 in each of which a pistonv 17 is operating. The piston rod 18 terminates in a bearing 19 on one end and 20 on other end, in which 'the shafts 7 and 7a are freely revolving. The bearing 19 is extended to receive a pipe 21 which fits into a bore 22 in the wall of cylinder 15. Pipes 23, 24, 25, 26 are provided to introduce steam, hot water, cold water, liquid soap, bluing and bleaching solutions into the drum 8 through the bore 22, pipe 2,1 and the hollow shaft 7. Stutlinof boxes 27 and 28 are to eliminate leakage atzbearing 19 and piston rod 18. The two cylinders 15 and 16 are provided with lugs 29 to be attached to the upper part of the frame 30 carrying the washer.

`The washer drum 8 and shell 1 are built lthe conventional way, my invention relating lof which is well known to the trade.

The method of operation will be as follows: The wash is placed into the drum 8 while the machine is in the position shown in Fig. 1. The wash water and cleansing solutions introduced through pipes 23, 24, 25, 26 as called y for, the quantityv being regulated by valves not shown in the drawing. The drum 8 is rotated by the motor the customary way and period, after which the drum 8 is stopped and the wash water eliminated through the valve 33 at the bottom of shell 1. After this being repeated as required andthe wash `is cleaned, it is ready for removal.

The lifting cylinders 15 and 16 are connected to a supply of steam water or air under pressure through pipes 34, with necessary valves for control,notshown,whichwhen 5 opened, will act under the plunger or piston of 1 being cylinders 15 and 16, forcing said pistons 17 upward and lifting the whole washer into the position shown in Fig. 4, the height of lift being sufficient to permit the hand trucks 35 ushed under the Washer to receive the wash trlirough the opening 36. Naturally for both loading and unloading the doors of the inner drum are brought in position to coincide with the doors of the outer shell.

The top part of both cylinders 15 and 16 are bored through 37, for the free movement of the air, when the plunger moves up or downshown in Fig. 3. While the unit as a whole moves upward the pipe 21 slides into cylindrical bore 22, the lower part of which being ground so as to close all the orifices of the feed pipes automatically, eliminating any chance of turning the steam or hot water on, while the washer is being emptied.

A modification is shown in Fig. 5 in which the lifting cylinders are mounted on the low er part of the washer, the washing unit being pushed upward by the action of the lifting cylinders 15 and 16. The introduction of the wash Water, detergents and bleaching solutions, also the automatic valve are the same as previously described. Fig. 5 shows the machine in the operating position, with the motor shaft broken away and with dotted lines indicating the Washer unit in the uplifted position, which for clarity is not shown full The modification shown in Figs. 6 and 7 accomplishes the same-purpose, but a difierent method is used for lifting. The outer stationary shell 1 the end heads 2 and 3, guide blocks 4 and 5, shafts 7 and 7 a, driving gears 9, 10, 12, 13 and motor 11 are arranged as previously described. v

The underside of guide blocks 4 at each end of the machine forms a seat for screw 38, a pair of bevel gears 39 and 40 suitably mounted; gear 39 forming a nut for screw 38 which is equipped with a key-way on its full length which with a key in support 41 prevent its turning. It is obvious that when shaft 42 is turned and bevel gear 40 is rotating, the screws38 will move up or down depending on the direction the shaft 42 is turned. Provision 43 is made in the floor for lscrew 38 to enter when the washing unit is in the lowest operating position. The bevel gears on both ends of the machine are operated simultaneously and may be either hand or power driven. The automatic valve is not shown in Fig. 6 and Fig. 7, but it may be applied in a similar way as shown in Fig. 3. The introduction and removal of the wash is the same as previously described.

What I claim as new and desire to secure by Letters Patent is;

1. In a washing machine, an upright frame having spaced uprights, guide blocks movable in said uprights, means rigidly connecting said guide blocks and including an outer shell having end walls to which said guide blocks are attached, said shell being provided with doors at its lower side, bearings in said Walls, a rotatable inner drum having a shaft journaled in said bearings and projecting therethrough, operating mechanism for rotating said drum and movable with said guide blocks, means at the ends of said shell for lifting said outer shell, inner drum and operating mechanism, comprising fluid pressure motors each having a cylinder and plunger therein, said plungers being connected to the ends of said shaft, and means for conducting fluid to said cylinder to operate said plungers.

2. In a. Washing machine, an upright frame having spaced uprights, guide blocks movable in said uprights, means rigidly connecting said guide blocks and including an outer shell having end walls to which said guide blocks are attached, said shell being provided with doors at its lower side, bearings in said walls, a rotatable inner drum having a shaft journaled in said bearings and projecting therethrough, operating mechanism for rotating said drum and movable with said guide blocks, means at the ends of said shell for lifting said outer shell, inner drum and operating mechanism, comprising a screw and a cooperating nut extending between said frame and each of said guide blocks and rotatable with respect to each other.

3. The combination with an upright frame comprising substantially vertical guideways, an outer shell having end walls, guide blocks rigidly secured to said end walls and slidable in said guideways vertically, said shell being also provided with a door in its bottom side and with alined bearings, a rotatable inner drum having a shaft journaled in said bearings and extending in said bearlngs and into said guide blocks, an operating mechanism for rotating said frame, means at the ends of said shell and acting upon said guide blocks to elevate said 'de blocks in said guideways at both ends ogg-:laid shell alike and simultaneously, thereby elevating said outer shell and said inner drum as a unit.

4. In a washing machine, the combination of an upright frame providing spaced substantially vertical guideways, an outer shell having guide blocks rigidly secured to the ends thereof and slidable in said guideways vertically, said shell being provided with a door in its bottom side and with alined bearings", an inner drum, means to rotatably support said inner drum within said shell on said bearings and including a hollow shaft, extending through its said bearing and on and into a guide block, and means communicating with the outer end of said hollow shaft and through said shaft communicating with the interior of said shell to supply detergent liquids thereto. l

5. In a washing machine, the combination of an upright frame providing spaced substantially vertical guideways, an outer shell having guide blocks rigidly secured to the ends thereof and slidable in said guidevvays vertically, said shell being provided With a door in its bottom side and with alined bearings, an inner drum, means to rotatably support said inner drum Within said shell on said bearings and including a hollow shaft, extending through its said bearing and on and into a guide block, and means communicating with the outer end of said hollow shaft and through said shaft communicating with the interior of said shell to supply detergent liquids thereto and operative to automatically cut off the supply of all-liquids thereto when and so long as said parts are in their elevated position.

6. In a Washing machine, the combinationv of an upright frame providing spaced substantially vertical guideways, an outer shell, guide blocks rigidly secured to the ends of said shell andv slidable vertically in said guideways, said shell being also provided with a door at its bottom side and With alined y bearings, a rotatable inner drum having a shaft projecting from each end thereof and journaled in said hearings and pro'ecting through said bearings into said guide locks, operating means for rotating said drum, and means mounted in said frame at the ends of said shell and acting upon said guide blocks to raise and lower said guide blocks in said guideways and With them said shell and i11- ner drum.

In testimony whereof I alix my signature.

ALLAN G. MACDONELL.

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