US1468445A - Brush - Google Patents

Description

Sept. 18 1923. 1,468,445

N. s. FROST BRUSH Filed Dec. 23. 1921 avwewtoz N515 6- f F05 T Patented sept, l8, 1923.

NELS S. FROST, 0F SEATTLE, WASHINGTON.

BRUSH.

Application filed December 23, 1921. Serial Iio. 524,432,

.To all whom it may concern:

Be it known that I, NELs S. FRosT, a citizen of the United States, and a resident of the city of Seattle, county of King, State ofWashington, have invented certaln new and useful Improvements in Brushes, of which the following is a specification;

This invention relates to improvements in hair brushes, or the like, and has for its principal object to provide a brush of that character equipped with means whereby its bristles may be folded against the back portion of the brush in su'ehmanner as to permit the device to .be disposed compactly within'a case, or within the pocket, and whereby, when it is desired to use the brush, the bristles may be extendedand locked in functional position.

Another object of the invention resides inv the construction of a brush having a series of bristle holding bars pivotally mounted within the frame portion thereof and provided with means whereby they are connected with 1 a plate that is shiftable't'o effect rotation of the bristle holding vbars which'will cause the bristles to be moved from folded to functional position, or vice versa. p 7 p p Another object of" the invention resides in the means for locking the shifting plate againstfmovem'ent to retain the bristles in extended position. l i Q Still further objects of the invention reside in the arrangement of the bristle mounting bars and in the method of mount ing the'bris'tles therein, whereby the bunches, or packs, of br stles of successively arranged bars are disposed in effect, or staggered,

7 brush, taken on the line 22 in Figure 1,

relation to provide a more compact arrangement when they are in folded position,

In accomplishing these" objects, I have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings, wherein Figure 1 is a top view of a brush, constructed according to the present-invention, a part of the back portion being broken 7 away to illustrate the manner of mounting the bristle holding members and the disposition of their actuating plate.

Figure 2 is a longitudinal section of the particularly illustrating the disposition of the shiftable plate and the manner in which it is constructed for actuating the bristle holding bars.

Figure 3 is a transverse, sectional view, taken on the line 38 in Figure 2, illustrating the pivotal mounting of a bristle holdin g bar within the frame of the brush.

Figure 41- is a transverse, sectional view taken on the line 4 -4 in Figure 1, particularly illustrating the means whereby the shiftable plate may be locked in position whereby it retains the bristles extended,

Figure 5 is a detail, perspective view of one of the bristle holding bars.

Figure 6 is a fragmental, sectional View showing thebristles in folded position.

Figure 7 is a top view of a brush having a part of the back platebroken' away for better illustrating a shifting plate of an alternative construction Figure 8 is a sectional view taken on the line 8-8 in Figure 7.

-Referring more in detail to the drawings- V a 1 designates, as a whole, what I term the frame or body of the brush. This comprises a base end portion 2 from which extend two opposite side rails 3 and 3, connected at their outer ends by means of across rail 4.

t back, cover plate 5 is fixed between the rails by means of screws 6, as shown in Figure 1,'and this 1s removable in order to facilitate the assembling of the bristle holding bars within the device or their removal therefrom. I

Extendingtransversely between the frame rails is a plurality of regularly spaced apart bristle holding bars 7, each ofxwhich is pro vided with a seriesof apertures 8 wherein packs of bristles 9 are drawn, and provided 7 at, their opposite ends with trunnions 10 which seat pivotally within upwardly opening sockets 11 provided at oppositely dis posed points ofthe rails 3 and 3.

These bars 7 are all assembled within the body of the brush before the back plate is 'Ill relation in accordance with the spacing of the bristle holding bars are two rows of apertures; the apertures 14: of one row being oll'set slightly from the apertures 15 of the other, andall are so arranged as to receive therein teeth 16 and 17 which are formed centrally on the bristle holding bars. The teeth 16 and 17 extend at an angle of approximately 90 degrees with each other, and are so located with respect to the apertures in the plate l2that they act after the fashion of gear teeth meshing with a rack, so that when the plate 12 is shifted longitudinally in opposite directions, it causes a rotatable movement of the bristle holding bars which, in turn, eiiccts the simultaneous movement ot the bristles to extended, tunctlonal pos1- tion, shown in Figure 2, or folded relation against the body of the brush, as shown in Figure 6.

When the bars 7 have been rotated by an outward shifting of the plate 12 so that their bristles are positioned in an extended position, the shifting plate may th n be locked so as to prevent folding of the brii tleswhile the brush is being used. The means which I have provided for locking theplate comprises a latch 18 which is slidably mounted within a transversely directed slot 19 in the-base portion 2 of the frame, and which'has a lug 20 on its under side which is movable within a transverse slot 21 in that end of the plate 12. This latter slot is provided with an enlargement, or lateral recess 22, at one end. as is shown in dotted lines in Figure 1. When the latch is in position to lock the plate, the lug 20 thereonis seated within that end of the slot 21 that is opposite the recess 22, but when it is shifted to the opposite side in alinement with the recess, it 'trees the plate so that the latter may be moved inwardly. Inward movement of the plate acting against the teeth of the bars 7 effects rotation of the bars and thereby moves all of the bristles into a folded relation against the body of the brush so that the latter may then be conveniently placed within a case'provided for folded against the brush, they'will nest with eachother and thereby provide a more compact arrangement than otherwise possible. In mounting the bristles within the supporting bars, the desired number for each pack are drawn into the apertures of the bars and then, by means of a suitable clamp or tool, the lower end of the apertures are pinched together so that the bristles can not be withdrawn. Should the bristles become worn offby long use, or should they become damaged, it isapparent that, by removing the back plate from the brush. the barsmay be removed and other bars, fitted with new bristles, may be inserted.

In Figures 7 and 8 I have illustrated a brush utilizing a shifting PlfitQOfE an alternative type of construction and wherein the bristle supporting bars are provided, at their opposite end, with the teeth 16 and 17 whereby they maybe rotated, and, in place 7 A brush oi the character described ,cem-.

prising a base plate having spaced apart rails extending theretrom; said rails being provided at points transversely opposite each other with upwardly opening sockets, bars extended between the frame rails having trunnions at their ends revoluble in said sockets, a plu'ality' of packs ot' bristles mounted in each set otlsaid bars with the packs of successive bars arranged in offset relation with respect toeach other, a shittable plate mountedwithin the frame over lying'said'bars, a-covcrplate secured to the frame to retain the bars and shiftable plate in functional position, said shiftable plate having means whereby it is connected with all of said bars. whereby shifting thereof will efleet rotation of the bars to cause the bristles to be folded against the brush body, or moved, to extended position, and means for locking the plate against shiftablemovement. 7 f V V Signed atSeattle. vll ashington, this 16th day of December, 1921.

NELs. s. FROST.

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