US1681404A

US1681404A - Domestic appliance

Info

Publication number: US1681404A
Application number: US670354A
Authority: US
Inventors: Frederick J Hardman
Original assignee: Individual
Current assignee: Delco Light Co
Priority date: 1923-10-23
Filing date: 1923-10-23
Publication date: 1928-08-21
Anticipated expiration: 1945-08-21

Description

F. J. HARDMAN DOMESTIC APPLIANCE Aug. 21, 1928.

Filed Oct. 23, 1923 Patented Aug. 21, 1928.

'u NITED STATE-S PATENT orries.

rnnnmucx J. ARDMA or DAYTON, onro', ASSIGNOR TO prince-LIGHT ooMrANY,

or DAYTON, OHIO, A CORPORATION or DELAWARE;

- noirnsrro APPLIANCE.

, Application filed' October. 23;. 1928. Serial No. 670,354.

This invention relates to power driven washing machines of the movable tub. type and hasamong itsobj ects to permit return of the tub to a desired positionin case-the tub shouldstop in an undesirable position. when the power circuit-is broken.

In order to carry out this object, the invention consists in. providing; disconnectible driving mechanisinbetween the prime mover and the movable tub, and common means for stopping the prime mover and disconnecting the mechanism so: that the tub can be moved to a desired position. I

Further objects and advantages of the present invention will be apparent from the f(')llowing description, reference being had to the accompanying drawings, wherein a preferred embodiment of one form'of the present invention is clearly shown.

In the drawings:

Fig. 1 is a fragmentary view in elevation of a laundry machineof the movable tub type including the present invention, the motor frame being shown in section with the gear-- ing connected and the tub in one of its tilted positions. 7

Fig. 2 is a view similar to Fig. 1, but on a reduced scale, with the tub in normal posi tion and showing the gearing disconnected.

Referring to the drawings, a laundry machine end frame provides a pivotal support for shaft 21 secured to one end of washing' tub 22. The opposite end of tub 22 is provided with a shaft (not shown) similar to shaft 21 and an end frame (not shown) sim ilar to frame 20. A return spring 23 is provided, having one end thereof attached to a stud 24 carried by tub 22 and the other end attached to a stud 25 carried by end frame 20.

The frame of an electric motor 30" is provided with a housing 31 which is pivoted upon a stud 32 carried by end frame 20. Housing 31 provides bearings 33 and 34 for an armature shaft 35 having a worm 36 adjacent one end thereof. Shaft 35 is held in position within housing 31 by anut 43 engaging the threaded end thereof and abutting against bearing 34. Worm 36 meshes with a worm gear 37 mounted on stud 38 carried by frame 20. A link 40 is secured to worm gear 37 and to a crank arm 41 secured to shaft 21 carried by tub 22. A handle 42 is provided on the motor frame 30 whereby the motor 30 may be lifted on its pivot 32 to thereby disconnect the worm 36 from the worm gear 37.

The motor lira-me 30 is provided with an end cover- 45 carrying a detent plate 46' having notches 4b and 49. for receiving a' roller 50 carried by a leaf spring 51. Spring 51 is secured to the frame 20 as at The roller 50 cooperating, with notcn 49, tends to hold the electric motor in the position shown in Fig. 1 with the gearing connectionsestablished, and; when cooperating with notch 48 holds the electric motor in the tilted position shown in Fig. 2 with the gearing disconnected.

, A. snap switch is securedto the end frame 20 and is operated by an arm 56, one end of which has a pin and notch connection with switch button. 57;. the other end thereof being secured to housing 31 and: movable therewitlr. about the axis Switch is connected with a suitable source of current byia xvii-e158: and with the electric motor by a wire 59. \V ire connects the electric motor 30 with the source of current.

M ode of operation.

WVhen the mechanism is in the position shown in Fig. 1, the motor circuit will be established from the source of current through wire 58, switch 55, wire 59 to the motor 30, wire 60 back to the source of current. The motor 30 driving the motor shaft 35 causes worm 36 to drive worm gear 37 which in turn drives the tub 22 on its pivot 21 through the link 40 and crank arm 41.

When it is desired to stop operation of the tub 22, the electric motor 30 may be swung on its pivot 32 by lifting upwardly on the handle 42, as viewed in Fig. 1. This upward movement of the motor 30 will cause the worm 36 to be disengaged from the worm gear Y37, and at the same time, the arm 56 will be moved downwardly to operate the switch 55 and thereby break the motor circuit. As the motor 30 is lifted upwardly, the roller 50 will be cammed out of notch 49' in plate 46 and will be forced into the notch 48 by spring 51, thereby holding the motor 30 in the tilted position shown in Fig. 2 with the worm 36 and worm gear 37 disconnected. The return spring 23 will then return the tub 22 to the horizontal position shown in F ig. 2.

When it is desired to begin operation of the tub 22, the electric motor 30 is pushed downwardly on its pivot 32, as viewed in Fig. 2, whereupon the roller 50 will be cammed out of the notch 48 and be forced into the notch 49 by spring 51. At the same time, the worm 36 will be connected with the worm gear 37 and the arm 56 will be moved upwardly to operate the switch 55 and thereby establish the motor circuit above described.

While the form of embodiment of the invention as herein disclosed, constitutes a.

preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows:

1. Power operated mechanism comprising, in combination, an oscillatable member, an electric motor, disconnectible gearing for transmitting motion from the motor to the member, a motor switch, a pivoted frame carrying the motor and one of the gears and con nected with the switch for operating the latter in response to movement of the frame, means for maintaining the frame in its operating and non-operating positions and means released by movement of the frame to its non-operating position for moving the oscillatable member to a desired position.

2. Power operated mechanism comprising, in combination, an oscillatable member, a motor, means for connecting the motor and member and including gears, one of which is above the other and disengageable from the lower gear by upward movement of the upper gear, a movable frame supporting the motor and upper gear and movable upwardly from the lower gear, the upper gear being maintained in mesh with the lower gear due to the weight of the motor, means responsive to movements of the frame for controlling the motor and means released by upward movement of the frame for moving the oscillatable member to a given position.

3. Power operated mechanism comprising, in combination, an oscillatable member, a motor, means for connecting the motor and member and including a worm and a worm gear located below the worm, a frame pivoted to move above the worm gear and carrying the motor and worm whereby the maintaining of the gears in mesh is assisted by the weight of the motor, means responsive to movements of the frame for controlling the motor and means released by upward movement of the frame for moving the oscillatable member to a given position.

In testimony whereof I hereto ailix my signature.

FREDERICK J. HARDMAN.