US2194688A - Washing machine - Google Patents

Description

March 26, 1940. A. K. BREMER WASHING MACHINE Filed Aug. 16, 1937 Patented Mar. 26, 1 940 A purpose of this invention is to provide a washing machine convenient for saving the trousmall kettle or stove pan with handles wherein the articles to be washed may, with convenience, be boiled prior to or during the application of power through the lid unit which carries the movable operating parts of the construction. I

With these objects in .view the construction is made as illustrated in the drawing wherein:

Figure 1 shows the device in transverse vertical section.

Fig. 2 is a fragmentary horizontal section taken on the line 22 of Fig. l.

Fig. 3 is a detail in vertical section taken on the line 33 of Fig. 1.

Fig. 4 is a detail vertical section taken on line l l of Fig. 1. l

Fig. 5 is a diagram showing surface variations of one of the impeller blades indicated comparatively in the planes A, B. .C, and D designated in Figs. 1 and 5. l q l Fig. dis a fragmentary sectional detail showing how the lid construction is depressed around the g purpose of increasing the velocity of fluid passcrank bearing to form alather receiving pocket. The suds may pass through vent holes inthe lid, whereby the condition of the washing fluid may be ascertained without removing the lid.

The receptacle part of the construction is a pan or kettle and may be about a foot in diameter and provided with handles on each side. The rim of the kettle forms a rest for the lid and the latter is provided with clamps whereby the lid may be drawn tightly into place on the rim. A crank is journaled in the center of the lid and carries the agitating or paddle construction. The latter is preferably an aluminum casting having a pair of blades of different areas and form. The smaller one is curved to alternately impart downward and upwardthrust on the contents of the alternate diagonal thruston the content of the machine in opposite directions with the purpose of producing opposed currents whereby alternating vacuum and pressure actions of the fluid on the material being washed are efiectively at- 6 tained. l a

As detailed in the drawing, the kettle or receptacle part of the constructionis indicated at I with handles 2 on opposite sides. Rim 3 of the kettle is formed to receive a cast aluminum lid 4, 10'

and the latter has ears 5 integral or riveted thereto which form pivot supports for lid clamping members 6, the pivots being indicated at l. The clamping members ii support pins 8 upon which are pivoted rim clamping claws 9. toggle connection whereby the claws are caused to draw the lid tightly down against the rim. The center part it) of the lid forms a substantial hearing for a crank. H. The end l2 ofthe crank passes through the bearing and carries a limiting collar l3 above the bearing. and a nut M at its lower end which serves to hold the paddle casting it. on the squared part It of the crank. The lid is preferably formed with a central depression ll around the upper end of the bearing Ill which has vent holes l8 allowing suds to pass therethrough as indicated in Fig. 6. These vent holes serve to minimize possible leakage at the rim by allowing for the escape of steam and incidentally indicate the condition of the washing fluid.

The paddle casting l5 includes the opposite vanes or baldes l9 and 28 which difier as to area and form, and each is provided with a plurality of openings 2|f countersunk on each side for the and 23 extending between the rows of perforations. 1

Blade I9 is curved at its lower part around a radial horizontal axis to form a sweep 24 and blade 20 has a diagonal bend along line 25 which divides the blade into two relatively inclined areas 26 and 21 whose vertical elements are respectively inclined in opposite directions with respect to a radial plane. Blade 29 is also curved at its outer end around a vertical axis to form a marginal sweep 28. Due to the variations of surfaces and forms of the blades, they are well adapted to produce variable direction effects on the washing fluid.

In the operation of the construction, aside from itsuse as a boiler, clothes are washed by This forms a 5 oscillating the crank; the paddle, therefore, works back and forth.

The two blades differ in form for the purpose of producing the maximum agitation and suction effects in various directions. Blade l9 throws, or drags, the washing fluid back and forth in an annular and outward direction and up and down, the bottom of the blade being somewhat curved for the latter purpose. Also blade 20, of different form, serves to force the fluid outwardly and also inwardly as it oscillates, clue to the curvature on its outer edge and the opposed inclination of its two surfaces 26 and 27. These impart alternate diagonal impulses to the washing fluid. Thus alternate pressure and vac-- uum effects are produced in various directions, making a rapid and thorough washing action. Such action is further assisted by the relative flow of the liquid through the countersunk perforations 2 l, with reference to the blades and the clothes which are drawn back and forth by the blades.

I claim: I

l. A washing machine of the class described comprising a receptacle and a lid attached to said receptacle, a crank centrally journaled in said lid, a paddle secured to the lower end of said crank and comprising a pair of blades, one of said blades having a radially extending portion warped on a diagonal line with reference to the axis of said receptacle to form oppositely inclined surfaces on each side of the blade for the purpose of thrusting contents of the receptacle diagonally upward and downward through rotaf tion of the blade in either direction, and one of said blades being bent about a vertical axis to form a sweep at its outer margin.

2. A washing machine comprising a receptacle body and a lid with attaching means for securing the lid to the body, a crank centrally journaled in the lid, a paddle secured to the lower end of the crank and comprising a pair of blades differing in area and form, one of said blades having its lower end curved around a horizontal radial axis while the other blade has its outer edge curved around a vertical axis, a diagonal bend in said last-mentioned blade with oppositely inclined surfaces on each side of said bend.

3. In a washing machine, a vertical shaft, a pair of paddles on said shaft, one of said paddles comprising a radially disposed blade bent about a horizontal axis to form an inclined sweep at its lower margin, and the other of said paddles comprising a radially disposed blade bent about a vertical axis to form an inclined sweep at its outer margin, said blades being spaced apart with respect to the axis of rotation to provide a central open area between them and said sweeps being located to follow each other in the same horizontal plane.

4. In a washing machine, a vertical shaft, a paddle on said shaft comprising a radially disposed blade having a warped body portion made up of oppositely inclined vertical elements at opposite sides of a diagonally inclined dividing line and having an end portion bent about vertical lines to form an inclined sweep at its outer margin.

AGATHA K. BREMER.

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