US115399A - Improvements carpet-sweepers - Google Patents

Description

To all'fwhom it may concer-m PATENT OFFICE.

oTrs H. WEED, or BOSTON, MASSACHUSETTS.

uviPRovEn/lENT IN CARPETSWEEPERS. A

Specicationforrning part of Letters Patent No. 115,399, dated May 30, 1871.

`Be it known that I, OTIs H. Wann, of Boston, inthe countycf SuffolkandState of Massachusetts, have invented certain Improvements in Carpet-Sweepers, of which the following isa f ull, clear, and exact description, reference being had to the accompanying drawing making part of "this specification, in

Whiche j j i Figure lis alongitudinal section through the center ofthe brush-shaft and the bearings in whichit rests, constructed in accordance with my present invention. Fig. 2 is a `transverse section on the line w of Fig. l.

Figs. 3, 4, and 5, perspective views, illustrating my invention in detail. y

To obtain access tothe pins on which the brush-shaft revolves, for the purpose of oilin g, without removingthe plates in which they bear,

and without detaching the bail p or handle of the carpetsWe-eper, is the object of my invention, which consists 4in a bearing-plate'which is bored through its center to form an openin g i for the reception of a pin projecting from the end of the brush-shaft, which may then be oiled from the outside ofthe sweeper without necessitatingthe removal of the bearing-plate, as has heretofore been required where a pin projecting from the bearing-plate enters a hole Withinthe endof the brush-shaft, the pins in `the end of the shaft alsoenabling the brush to be correctly centeredwhile being trimmed.

To enable others skilled in the art to understand and` use my invention, I will proceed to describe the manner in which I have'carried In the said drawing, A] is thecasing, within which revolves the brush B, at one end of the shaft C of which is asmall gear or pinion,

\ a, which is drivenby the cogwheels D E, which forms a bearing for thisend of the brush-shaft.

r j The above-described construction Iadmits of the pins being oiled within their bearings Without the necessity of yremoving the plates G G, which operation has hitherto required their removal. With this construction'the shaft is less liable to become clogged by the winding of thread or other refuse matter around it, and, as the bail or handle H is not connected with the bearinglplates, they may be more readily removed, if required, than if the bail was attached thereto, as heretofore. Before thebrush is placed in position within the casing the gear and cap are tted on the ends of the shaft, and their pins serve as centers during the operation of trimming the brush, which insures the brush when in the sweeper being concentric with the line passing through the centers of the bearing-plates. Instead 'of the pins projecting from the outside of the gear and cap,

the cap maybe dispensed with and the gear Claim.

The bearing-plates G G, with the openings c i, and gear al with its pin b, and cap e with its pin h, when constructed and combined with the brush-shaft G, substantially as and for the purpose set forth. e

Witness my hand this 6th day of September, A. D. 1870.

' OTIS H. WEED.

Witnesses:

N. W. STEARNS, P. E. Tnscnnivrncnnn.

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