US1956927A - Shaving brush - Google Patents

Description

Patented May 1, 1934 UNITED STATES PATENT OFFICE- This invention relates to brushes wherein a soap or paste may be fed to the bristles from a hollow cylindrical handle member. The invention is particularly adapted for use in shaving `3 brushes and the like although it may also be embodied in tooth brushes and similar cleaning devices if desired.

The primary object of the invention is to provide a simple and compact supply housing or cylinder which is provided with a handle member adapted to be rotated and extrude the contents of the housing in thread-like form onto the outer bristles of the brush.

A further object of the invention is to provide a brush or bristle head which is particularly adapted to co-operate with the extruding mechanism but whichmay be removed and replaced by a new head when the bristles become worn and unt for use.

Various types of self fed shaving brushes have been proposed heretofore, but so far as applicant knows, none of them have gone into practical use due to certain defects which are overcome by the present invention. Heretofore, it has been proposed to extrude a single large ribbon of paste into the central portion of the bristle head lby means of a centrally disposed conduit. Such an arrangement resulted in considerable waste of soap as it did not reach the proper place to form lather and when the brush was washed out, much of the soap was lost. Also, there was objection to having a conduit sticking out into the bristles which might scratch the user when the brush was applied.

'Ihe invention is illustrated inthe preferred embodiment in the accompanying drawing, in which- Fig. 1v is an elevational view of a shaving brush embodying the invention; Fig. 2 is a longitudinal 40 sectional view taken as indicated at line 2 of Fig.

1; and Fig. 3 is a bottom plan view of the bristle head showing the apertures through which the soap is extruded. I k

The device is shown as comprising a cylinder 45 or housing 5 which is equipped at one end with a screw-thread 6to which the bristle head 7 may be attached, and at the other end with a screwthread 8 to which a knob 9 and lock washer 10 are threaded. The housing is further provided with an outwardly extending annular ilange 1l, disposed between the threads 6 and 8 so that the housing may be gripped while the handle member or knob 9 is being rotated.

- The knob 9 is provided with a piston 12 which is adapted-to travel up into the cylinder and compress the contents thereof when the knob is rotated. The knob is recessed as shown at 13 to permit the member to travel over the thread 8.

The bristle head 7 is in the form of a collar which makes a threaded connection with the housing and is provided with a diaphragm or base 14 to which bristles 15 are securely anchored.

As shown in Figs. 1 and 2, the bristles 15 ilare outwardly from the longitudinal axis of the device.

As indicated in Figs. 2 and 3, the diaphragm 14 65 is provided with a plurality of small apertures 16 which communicate with the inside of the cylinder 5. As shown in Fig. 2, the holes are inclined slightly with respect to the longitudinal axis of the device so that the soap will be extruded in a line substantially in alinement with the bristles.

To load the device, the handle member 9 is completely unscrewed and a thin shaving soap paste or cream may be pushed into the cylinder. The knob may then be replaced and screwed down suiciently to extrude the threads of soap through the apertures 16. The lock washer 10 may be tightened to insure a tight t between the handle member and the cylinder. It will be understood that the cylinder may be loaded from either end but preferably it is loaded by removing the bristle head so that there will be little or no untrapped airin the soap when the head is replaced.

By arranging the apertures 16 near the marginal bristles of the tuft, the soap will be readily 35 accessible to water and air and. a thick lather may be worked up very quickly,

While the cylinder and handle portion are of more expensive construction than that of an ordinary shaving brush handle, it will be understood that this part of the device may be fitted with a new bristle head of desired size and quality. The device is particularly adapted for use in barber shops Where the same brush is used many times in a day and must be washed out thoroughly after each use.

What I regard as new and desire to secure by Letters Patent is:

In a shaving brush: an open ended cylindrical housing for shaving soap, said housing having external screw-threads at each end thereof and an outwardly extending annular nger-gripping flange disposed between the ends of said threads,

a handle-member threaded to one end of said housing so as to form a closure therefor and having a piston movable axially with respect-to the thread to compress the shaving soap, a lock nut on said housing adapted to engage said handlemember, and a removable bristle-head releasably screwed to the opposite end of said housing to 110.

disposed at a slight angle to the longitudinal axis of the handle so that small threads of shaving soap may be extruded between the marginally disposed bristles in substantial alinement therewith.

GENE PIETRO.

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