US1682216A - Window-cleaning device - Google Patents

Description

Aug. 28, 1928.

F. H. DELLAREE El AL WINDOW CLEANING DEVICE Filed Jan. 9, 1926 Patented Aug. 28, 1928.

UNITED STATES FRANK E. DELLABEE AND JACOB BOMZE, OF DETROIT, IIIGHIIIG'AN.

WINDOW-CLEANING DEVICE.

Application ma January 9, 1m. Serial No. 80.188.

This invention relates to a window cleaning device (primarily designed to facilitate cleaning an polishing panes of glass, but the device is ca able of general use for wiping,

5 cleaning, po ishing or otherwise treating various klIldS of surfaces heretofore operated upon by manually manipulated tools.

Our invention aims to provide a motor driven holder for a mop, mg or other instrumentality used for cleansing or treating a surface, the cleanin instrumentality being rapidly revolved an adapted to be moved about relative to a surface with a minimum degree of hand exertion.

us Our invention further aims to provide a device embodying a small electric motor that may be conveniently carried by a Workman, the motor being driven from a suitable source of electrical energy as an ordinary electric 20 lighting circuit, and the motor is adapted to drive a flexible shaft on the end of which is mounted a holder adapted to be manipulated by the workman relative to a surface. In the holder and driven by the flexible shaft is a 25 rotary head to which may be attached various kinds of cleaning instrumentalities.

Our device will be hereinafter specifically described and then claimed, and reference will now be had to the drawing,wherein- Figure 1 is a perspective view of the device showing the manner of using the same;

Fig. 2 is an enlarged longitudinal sectional view of the holder;

Fig. 3 is a cross sectional view taken on the line III-III of Figure 2, and v a Fig. 4 is a similar view taken on the line IVIV of Figure 2.

As illustratlng our device in use for window cleaning purposes, we showa workman 1 provided with a belt 2 havin a clip 3 from which may be suspended a 'hoo 4 of a clamp 5 surrounding a small electric motor 6. This motor has an end handle 7 constituting a socket for a leading-in conductor 8 by which electric current is supplied to the motor 6; there being a suitable switch or trigger 9 at the handle 7 for controlling the operation of the motor. I

Suitably attached to the motor is a flexible casing 10 for a flexible shaft 11, said casing having a head 12 on which is mounted the inner e, d of a cylindrical hollow holder 13 provide' with an intermediate partition 14. On the outer end of the holder 13 is a cylindrical open end housing 15 and mounted in said housing and the partition 14 are anti-frictional radial bearings 16 supporting a driven shaft 17. On the shaft 17, etween the bearings 16, 1s a spacing sleeve 18, and the inner end of the shaftv 17 is bifurcated or slotted, 'as at 19 and made hollow to receive the outer end'of the flexible shaft 11, said shaft having a side pro- )ection 20 establishing a driving relation between the flexible drive shaft and the driven shaft 17. Any suitable means may be employed for coupling these two shaftstogether so that power may be transmitted from one to the other.

On the outer end of the driven shaft 17 is an enlargement 21 supportin a head 22, said enlargement cooperating wit a nut or abutment 23 on the inner end of the shaft 17 in preventing longitudinal displacement of said shaft relative to the bearings 16 seated in the holder 13 and the housing '15. The enlargement 21 is toothed or has a series of grooves 24 into one of which may be projected a 5 ring retracted detent or brake member 25 s idably mounted in an enlargement 26 of the housing 15. The enlargement 26 accommodates a coiled spring 27 b which the detent is held normally retracte and by pressing inwardly on the detent it may be placed in engagement with the enlargement 21 to hold.

the shaft 17 against rotation while the cleaning instrumentality is removed from the outer end of the shaft.

Mounted in the head 22 is a cup-shaped yieldable shield or guard 28 havin an outer flared or bell-shaped end 29, and t is shield or guard is preferably made of rubber with its outer end more liable or resilient than its inner end, which is held in the head 22 by a retaining member 30. The retaining member 30 is seated in the inner end of the shield or guard 28 and has a stem 31 extending through the shield into screwthreaded engagement with a socket 32 in the enlargement 21. Goaxially of the stem 31 on the outer side of the retaining member 30 is a stud 33, and attached to the end of said stud and the cleaning instrumentality 36 will be revolved against the surface, for instance, a

ane of less 37. If pressure is brought to at by t e workman 1, the cup-sha d member 28 may contact with a pane of g ass without in'uring the same. The member 28 serves as a s ield for a art of the cleaning instrumentality 36 an as a guard to prevent the head 22 or the end of the housing 15 from contacting with a surface during the use of our device.

It is obvious that our device may be used similar to a mop for applying various liquids or, compounds to a surface, and while in the drawing, we illustrate'a preferred embodiment of our invention, it is to be understood that the structural elements are susceptible to such variations and modifications as fall within the scope of the appended claims.

What We claim is:

1. A cleaning device comprising a hollow a0 holder, a housing at one end thereof, a driven shaft journaled in said holder, a head on said shaft within said housing, a support for a cleaning instrumentality in screwthreaded engagement with said head, and a cup shaped as yieldable shield clamped on said head by and surrounding said support.

. 2. A cleaning devlce as called for in claim 1, wherein said shield is made of rubber, and a retaining member forming part of said support clamps said shield in said head.

In testimony whereof we afiix our signatures.

FRA K H. DELLAREE. JACOB BOMZE.

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