US1620358A - Carpet sweeper - Google Patents

Description

Patented Mar. 8, 132i?.

UNITED STATES PATENT OFFICE.

WILLIAM HENRY KENYON, OF ACCRINGTON, ENGLAND, ASSIGNOR vTCO ENTV/ISLE & KENYON LIMITED, O1? ACCRINGTON, ENGLAND.

CARPET STEEIER.

Application filed October 22, 1923, Serial No. 670,039, and in Great Britain November 7, 1922.

This invention relates to combs or clearers -lor the rotary brushes of carpet sweepers such as described in the specification of British Patent No. 26,003 of 1913 for clearing or removing from the brush, hairs, libres or threads which have a tendency to lap round the brush.

In the specification No. 26,003 of 1913 there is described an appliance attached to a block or bar axed to the underside of the casing with depending blades or teeth to enter between the bristles of the brush as it rotates to engage with and sever any hairs or threads lapped thereon.

We find that as there is a certain space between these blades it is possible for hairs to lap and collect between them which are not removed and the object ot the present invention is to provide for the more effective clearing oi the brush.

According to the invention in a stationary plate or comb which is rigidly ailixed in p0- sition the blades are stamped from the centre oi a metal strip and the depending blades are disposed in an inclined or diagonal direction instead of at right angles to the longitudinal axis of the plate or comb thus one edge oi' each blade will act upon a specific part ol? the periphery ci' the brush when the latter rotates in one direction and the other edge ci? the blade upon a diiierent part of the periphery when the brush rotates in the reverse direction ensuring that each blade will clean a greater area of the surface of the brush and the sides oi the blades will assist in detaching the broken threads or hairs from the bristles.

r1`he invention will be fully described with reference to the accompanying drawings.

Fig. 1 is a longitudinal section through the carpet sweeper showing the improved clearer C Fig. 2 is a longitudinal section (enlarged) of the improved clearer' C.

Fig. 3 is a plan of same from the underside.

Fig. i is an end elevation.

Fig. 5 is a perspective view ot separate claw D igor securing the clearer C in position.

Fig. 6 is a plan ot same in position on clearer C Fig. 7 is a longitudinal section showing saine in position.

The sweeper case A with a block or bar E to retain the clearer C'a'nd the brush B are ot ordinary form or construction.

Theimproved clearer C has the blades c placed at an inclination tothe longitudinal axis of the clearer. rlhey are` preferably stamped out of a strip oi steel and the blades may all be inclined in one direction as shown in Fig. 6 though preferably some are inclined to the right and some are inclined to the lett as shown in Figs. 2 and 3.

The clearer C may be aiiixed to the block E on the underside or the case A or b f a bracket D as described and claimed in our concurrent application. The bracket D may be stamped integral with the clearer C and bent up over the block E as in Figs. 2 and 8 er it may be separate with a diagonal slit CZ to engage one of the blades c at the end of the clearer C as in Figs. 5 to 7, or the bracket may be soldered or brazed to the clearer and secured to the case A.

YJlflhat l claim as my invention and desire lo protect by Letters Patent is z- In a carpet sweeper having a` case and a horizontal cylindrical brush`l` a clearer positioned above said brush and provided with blades to engage the periphery ot the brush, said blades ext-ending downwardly from the centr-ect a strip ot metal and set at an inclination to the longitudinal axis thereof whereby one edge of each blade will contact with a specific part ot the brush periphery when rotating in one direction and the other edge with dii'lerent part of the brush periphery when rotating in the reverse direction.

In testimony whereof I have hereunto set my hand.

vVVILl'JIfilVI HENRY KENYON.

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