US2308674A - Brush - Google Patents

Description

Jan. 19, 1943. H. CAVE 2,308,674

BRUSH Filed Nov. 22, 1959 Patented Jan. 19, 1943 BRUSH Henry Cave, Hartford, Conn., assignor to The Fuller Brush Company, Hartford, Conn., a corporation of Connecticut Application November 22, 1939, Serial No. 305,643

4 Claims.

My invention relates more particularly to the smaller type of brushes commonly known as pastry brushes, although it may well be embodied in brushes of a larger type, and an abject of my invention, among others, is to provide a brush so constructed that it may be produced in a rapid and economical manner; and a further object of the invention is to provide a brush 'not only simple in construction but that shall be particularly emcient for the purposes for which it is designed.

One form of a brush embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained is illustrated in the accompanying drawing, in which- Figure 1 is a side view of my improved brush.

Figure 2 is a similar view but looking from a point of view at right angles to the point of view of Fig. 1.

Figure 3 is a view showing the brush just before application of the hood to enclose the bent portions of the bristles.

Figure 4 is a view similar to Fig. 3 but looking at the structure from 'a point of view at right angles to the point of view of said Fig. 3, the handle being broken off in both Fig. 3 and Fig. 4.

Figure 5 is a view of that end of a rod for forming the loop at the end of the handle.

Figure 6 is a similar view but looking from a point of view at right angles to the point of view of Fig. 5.

Figure 7 is a view showing this end of the handle bent into final form.

Figure 8 is an isometric perspective view showing this end of the handle.

In the accompanying drawing the numeral I0 denotes the stem or handle of my improved brush having a loop II at its outer end formed by bending the wire into this shape. The numeral l2 denotes a cap or hood and i3 denotes the bristles which may be of any suitable character commonly used in brushes of this type.

In making the brush a bristle retaining loop I4 is formed at that end of the stem opposite the loop It and the bristles iii are held within said loop, such bristles being introduced preferably before the loop is formed and said loop being then bent around the bristles to tightly hold them in place. The cap or hood I! is preferably placed upon the wire before the loop II is formed, such cap or hood being slid backwardly upon the wire out of the way during the operation of forming said loop, and as shown in Fig. 3 of the drawing. After the loop I! is formed and the bristles l3 are securely held in place thereby the cap or hood is slid into place as shown in Fig. 2, such cap or hood being of a size to tightly enclose the bent ends of the bristles and when so positioned said cap or hood comprising the head of the brush.

In forming the loop I4 difllculty was encountered by reason of the fact that the free end of the loop couldnot be caused 'to tightly contact with the base l5 of the loop owing to the spring of the metal, the free end of the loop, when pressure was released after bending, springing away from the base I5 to a slight extent. In order to overcome this objection I form a notch IS in the end of the wire l'l from which the handle is formed, this notch preferably being shaped to proper form to fit the round shape of the wire when such is employed.

In the operation of making the brush the bristles are properly laid and the wire is then bent to form the loop ll as hereinbefore explained and inthis bending operation the notched end l6 of the wire is pressed into close contact with the base l5 of the loop. The notch It may be a little smaller than the wire and such notch need not necessarily be of circular shape in which case when pressure is applied to form the loop it will cause the notch to tightly embrace and abut the base l5.

In accordance with the provisions of the patent statutes I have described the principles of operation of my invention together with the device which I now consider to represent the best embodiment thereof; but I desire to have it understood that the device shown is only illustrative and that the invention may be carried out by other means and applied to uses other than those above set out within the scope of the claims.

I claim:

1. A brush including a stem or handle formed of wire of considerable stiffness having a brush retaining loop at one end formed by a bent end of wire in tight unyielding, immovable engagement with the running part thereof, the free end of the wire having a terminally opening end notch. extending transversely thereof with the notch shaped to receive and tightly embrace the running part of the wire at the base of the loop, and bristles extending through said loop transverseiy to the plane thereof and unremovably bound therein solely by the unyielding pinching action of said loop having a rigidity sumcient to withstand opening by outward pressure of the bristles within the loop.

2. A brush including a stem or handle formed of wire of considerable stiffness having a brush retaining loop at one end formed by a bent end of the wire in tight engagement with the running part thereof, the free end of the wire having a terminally opening end notch extending transversely thereof with the notch shaped to receive and tightly embrace the running part of the wire at the base of the loop. 'and bristles extending through said loop transversely to the plane thereof and doubled within said loop and unre- 1 movably bound therein solely by the unyielding immovable pinching action of said loop having a rigidity sufllcient to withstand opening by outward pressure of the bristles within the loop.

3. A brush including a stem or handle formed 1 of wire of considerable stiifness and having a brush retaining loop at one end formed by bending the free end of the wire against the running part thereof, the free end of the wire having a terminally opening end notch extending transversely thereof with the notch shaped to receive and tightly embrace the running part of the wire at the base of the loop, bristles ezdaending through the loop transversely to the plane thereof and doubled within the loop and held therein solely 25 by the unyielding immovable pinching action of the end of said loop having a rigidity suflicient to withstand opening by the pressure of the bristles within the loop, and a can or hood having a bulge at one end creating an enlarged chamber to inclose the doubled and thereby enlarged part of the bristles and also having a reduced outward flaring bell shaped mouth at its opposite end to exert a pinching action on the bristles beyond the brush retaining loop.

I, 4. The method of forming a brush that consists in making a notch extending transversely across one end thereof and of slightly less width than the diameter of a wire, bending this end of the wire into a loop with bristles extending therefrom and with the notch engaged with the running or main part of the wire which extends through said notch transversely to the end containing it, the notch enabling the end of the loop to be pressed permanently, tightly against the main part thereof, thereby completely closing the loop without loosening by spring action of the wire and the bristles within the loop.

HENRY CAVE.

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