US1475118A - Cleaning implement - Google Patents

Description

Nov. 20,1933 1 1,475,118 G. A. HOYEM CLEANING IMPLEMEN-T Original Filed Sept'p28 1921 m INVENTOR l ATTORNEYS Mill/l. BY

atented Nov. 26, 1923.

ill T ere 'r raise.

CLEANING ITEPLEMENT.

Original application filed September 28, 1921, Serial No. 503,904. Divided and this application filed May T 0 all whom it may concern:

Be it known that I, Gnoncn ART1rUn Hornnr, a citizen of the United States, and a resident of Lennep, in the county of Meagher and State of Montana, have invented a new and Improved Cleaning Implement, of which the following is a full, clear, and exact description.

This invention relates to a cleaning imend which shall be especially useful, as I have found in practice, when used either before or after the application of a cleaning device for scraping out the internal surfaces of the spark plug.

Such a scraping device is described and claimed in my U. S. Letters Patent No. 1,461,904, of July 17, 1923, of which the present application is a division; and in that application there is disclosed, but not claimed, the brush-type working end for a spark plug cleaning device as herein claimed as well as disclosed.

A further object is to provide a brush or bristle structure, itself of an inherently resilient type, to cooperate with the preferably slightly stiffer resilient support for the brush structure afforded by said handle, thereby to provide a cleaning device vof the brush or bristle carrying type adapted to be applied to the interior of'a spark plug with maximum efficiency and a minimum amount of brushing manipulation.

Still further objects of the invention, and the invention itself will be better under-- stood from the following description, when taken in connection with the accompanying drawing illustrating, but merely by way of example, one practical embodiment of the invention.

In said draWing- Figure 1 is a perspective view of a cleaning implement embodying my improved construction and showing the same in use;

Figure 2 is a similar perspective view Serial No. 637,832.

showing all of the parts of the cleaning implement, and

Figure 3 is a transverse sectional View taken along the line 3-3 and in the di rection of the arrows indicated in Figure The numeral 5 indicates the body of the implement, which is in the nature of a metal sleeve or elongate hollow handle, the end portions of which handle are extended to provide two pairs of legs 6 and 7. It will be understood that by this construction each one of both pairs of legs will incorporate a certain amount of resiliency when pressed to converge toward the other leg of its pair.

Referring now to the parts of the device striking out portions of such heads. the

cleaning device is shown applied in Figure 1, the same has its scraper end inserted 1n the sparking chamber of a spark plug 9;

say with the cleaner at rest after the concluto complete a scraping operation found to be a desirable preliminary to the application of the brush end of the cleaner to the interior of the spark plug.

Referring now to the features of construction of the unitary implement of Figure 2 having a special relation to the invention of the present application, it will be seen that legs 6 have their outer ends 12 bent upon themselves; this being a preferable construction for mounting a brush element for projection beyond the free end of each leg, it being understood, however, that such elements may be secured in any desired manner.

Now examining the brush elements, it will be seen that each preferably comprises a single length of a previously known type of resiliently flexible twisted bristle carrying wire. The single wire here constituting each brush element is reversely bent a plurali'ty of times so as to form substantially the letter W and to present mutually converging terminal portions for anchorage by the bent over terminal portion 12 of a leg 6.

In operation, it will, of course, be understood that on reversing the body or handle from the position shown in Figure l. and inserting the brush end of the implement into the interior of plug 9, in such a way that ground electrode 9 of the plug is straddled by legs 6, back and forth partial rotations of the implement will effectually clean out all previously loosened carbon deposits, as

deposits loosened by a preliminary application of the scraper end of the implement. It has been found in practice that very few such rotations of the implement, rapidly performed, satisfactorily frees the plug of all carbo deposits which would otherwise have a deleterious effect on the operating efficiency of the engine carrying the plug. t is pointed out that by virtue of the peculiar construction of the brush elements themselves and or" the coacting parts of the implement, it would be practically impossible for any of the loosened carbon deposits to settle into parts of the implement in such a way as to interfere with the cleaning efliciency thereof, or in such places thereon or therein as to make it diflicult thoroughly, to

clean the implement after the latter has been cleaning implement for spark plugs including a handle portion, and a cleaning element ofi'set from said handle portion, said element comprising an elongate bristle carrying member, said element being reversely bent on itself in its bristle carrying portion.

2. As a new article of manufacture, a cleaning implement tor spark plugs including a handle portion, and a cleaning element offset from said handle portion, said element comprising an elongate bristle carrying member, said element being a twisted wire bristle carrying member bent on itself and anchored at its opposite ends to the handle portion, the handle portion carrying a reduced resilient terminal portion to which said element is so anchored.

3. As a new article of manufacture, a cleaning implement for spark plugs includinga pair of legs resiliently connected, and cleaning elements carried by the legs, such elements comprising a plurality of bristle carrying members, said legs being carried at opposite sides of one end of an elongate handle formed of sheet metal, thereby to permit shaping of the opposite end portions of the handle into scraper elements.

4. A cleaning implement, including a sleeve, legs extending from the ends of said sleeve, and brushes attached to said legs, one brush on each leg, each brush formed into a substantially W-shaped body portion.

GEORGE ARTHUR HOYEM.

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