US1277142A - Brush. - Google Patents

Description

W. T. SHERMAN.

BRUSH.

APPUCATION HLED lAN.4. I916- RENEWED FEB. 25. 1918.

Patented Aug. 27, 1918.

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W. T. SHERMAN.

. BRUSH.

APPLICATION FILED JAN.4. I9l6. RENEWED FEB, 25. 1918. 1,277,142. Patented Aug. 27, 1918..

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/ 7 VIII" okg -gw/l 1720622 for" WILLIAM 'r. SHERMAN, or TROY, NEW YORK, ASSIGNOR,BY MESNE"ASSIG1\TME1\TTS, TO HENRY L. HUGHES 00., Inc, or NEW YoRK, N. Y.,IAYGORPORATIQ1\T on NEW YORK.

BRUSH Specificationof Letters Patent. Patented A11 2'7, 1918.

Application filed J'anuary l, 1916, Serial No. 70,269. Re e e Februar 25, 1918.: Serial a... 219,157.

To all whom it may concern:

Be it known that I, WV LLiAM T. SHER- MAN, a citizen of the United States, residing at Troy, county of Bensselaer, and State of New York, have invented certain new and useful Improvements in Brushes, .of which the following is a specification.

Reference may be had to the accompany ing drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer: to similar parts inthc severalfigures therein.

The invention relates to a type of toiletbrush in which the bristles are supported by an elastic pad or sheet which is inserted and secured in a recess inthe brush-back, and preferably so confined by the walls of the recess that the pad is held inn buckled position so as to present an outwardly curved or convexed surface from which the bristles divergently project.

The principal. object of the present inven- .tion is to tightly secure the edges of the pad within the recess inthe brush-back.

Other objects will appear in connection with the following description; Figure 1 of the drawings is a plan view of the face of a brush embodying my invention, with a portion of the bristle-supporting pad broken away, and, an edge-portion of the pad and the wall of the recess inthe.

brush-back shown in horizontal section.

Fig. 2 1s a plan view of the opposite side of the brush with the brush-back partly cut away and shown in horizontal section.

Fig. 3 is a vertical cross-section of the brush taken on the broken line 33 in Fig. 2.

Fig. 4 is a vertical cross-section of the brush taken on the broken line 4L in Fig. 2.

Fig. 5 is a central, vertical longitudinal sectiontaken on the broken line 55 in Fig. 2.

Fig. 6 is a plan view of the clamp-plates and the operating wedge separated from one another.

Referring to the drawings wherein the invention is shown in preferred form, 1 represents the brush-back formed with a recess, 2, of a form and size adapted to receive the bristle-supporting pad, 3, the edge-portion of which closely fits within the recess.

The bristles, 4, may be attached to the pad, 3, in any known manner.

The pad is formed of elastic material, preferably soft rubber, and is preferably of such a size that when its edge-portion has been forcedintothe recess, 2, in the brushback, the pad will be buckled or curved outwardly, presenting a conveXed outer surface from which the bristles divergently project.

In the drawings a preferred form ofrece'ss is shown, the wall of which is undercut to form a groove, 5, well adapted to receive the inserted edge of the pad.

In carrying out my invention, I inclose between the" pad and the brushback,.cla1nping-mechanism cooperative with the wall of the recess to clamp thereagainst the edgeportion of the pad.

In the preferred form of my invention shown, this clampingmechanism comprises a pair of relatively movable clamp-plates, 6, and a movable wedge, 7, interposed between said clamp-plates.

The outer edge-portions of the clampplates, 6, conform approximately to the contour'of the side w all of the recess against which the inserted edge-portion of the pad rests, and serve, when the clamp-plates have been forced apart by the wedge, to securely clamp the edge-portion of the pad against the wall of the recess. i I

The clamp-plates and wedge may be made of wood,"metal or other suitable material, but I prefer to makethe clamp-plates of wood, and the wedge of metal; and to form on opposite sides of the wedge a series of teeth, 8, which become embedded in the edges of the wooden clamp-plates when the a wedge is driven in between them and thereby effectively prevent withdrawal of the wedge. Y

The wedge is preferably provided with a longitudinal slot, 9, through'which one or more headed nails or pins, 10, are driven into the brush-back, forming a loose guide for the wedge in its movement, and retaining the wedge in connection with the brushback while the pad is being inserted and clamped within the recess.

In completing the brush, the clamps, 66, are laid within the recess in the brush-back on opposite sides of the wedge which is withdrawn sufficiently to leave a suitable space between the outer edges of the clampplates, and the side wall of the recess into which space the edge-portion of the pad is inserted, after which the edge is driven in between the elainpplates by means of a pin or other suitable tool, 13, inserted through a perforate opening, 11, formed in the wall of the recess, which opening may also serve as a vent-opening when the brush is in use.

When the wedge has been well driven in between the clamp-plates, the clamp-plates will be so spread apart that their outer edges willtightly clamp the edge-portion of the pad against the wall of the recess, not only securely retaining the pad in position, but making a practically water-tight joint between the pad and the brush-back.

To facilitate the action of the wedge, the

clamp-plates may have formed on their inner edges, where engaged by the wedge, in clined surfaces, 12, corresponding with the taper of the wedge.

The ends of the clamp-plates are preferably cut away or rabbeted as at 14, to permitthe plates to lap one another at their ends so as to make contact with the edgeport ion of the pad throughout the extent of its internal periphery.

.The walls of the recess, 2, may be of any form suitable for properly supportingthe edge of the pad in opposition to the. thrust of the inclosed clamping-mecharrism; and various changes in the form of the inclosed claniping-mechanism are possible without departing from the spirit of my invention.

I make no claim herein broadly to means inclos ed between the pad and the brushback cooperative with the wall of the recess to secure the edge-portion of the pad within the recess as this feature is generically claimed in my copending application Serial Number 115,951, filed AugustZl, 1916, for

brush, and which application is for cerfive cents each, by Washington, D. 0.

recess, and an elastic bristle-supporting pad the edge-portion of which fits within said recess, and having lDClOSGClbQtWQGll the pad and the brush-back an expansible clamp cooperative with the wall of the recess to clamp thereagainst the edge-portion of the pad, and a clamp-expanding member.

'2. A brush having a back provided with a recess and with a perforate opening through a wall ofthe recess, and an elastic bristle-supporting pad the edge-portion of which fits within said recess, andhaving inclosed between the pad and the brush back an cxpansible clamp cooperative with the wall of the recess to clamp thereagainst'the edge-portion of the pad, and a clamp-expanding member accessible for operation through said perforate opening.

3. A brush having a back provided with a recess and with a perforate opening through a wall of the recess, an elastic bristle-supporting pad the edge-portion of which fits within the recess, and clamping-mechanism inclosed between the pad and the brushback comprising relatively movable clampplates cooperative with the wall of the recess to clamp thereagainst the edge-portion of the pad, and a movable wedge interposed between the clamp-plates and accessible for operation through said perforate opening.

In testimony whereof, I have hereunto set my hand this 30th day of December, 1915.

WILLIAM T. SHERMAN.

addressing the Commissioner of Patents,

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