US1517852A - Brush or broom - Google Patents

Description

Dec. 1924- 1,517g852 H. D. NEFF BRUSH QR BROOM Filed May 26, 1922 Patented Dec. 2, 1924.

UNITED STTES HARRY DRAZPER NEFF, OF CAMBRIDGE, MAQSACHUSETTS, ASSIGNOR T0 .RE-IEILI'I BROOM COMPANY, 015 BOSTON, MA5SAOHUSETT$, A GORPQRATION OF MASSAGHU- SETTS.

BRUSH 0R BROOM.

Application filed May 26,

To all whom it may concern:

Be it known that I, HARRY DRAPER NEFF, a citizen of the United States, and a resident of Cambridge, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Brushes or Brooms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My present invention relates to brooms and brushes, and more particularly to an improved form of sectional or unit type of brush or broom.

In the present commercial types of sectional brushes, particularly circular sectional brushes, the cost of upkeep is an importantitem. A factor tending to unduly increase the cost of upkeep is the tendency of the fibres, bristles, and the like, of the brushes to be thrown 05 before being entirely worn out. With a view to reducing the final cost and cost of upkeep of brushes of this type, and to further simplify the various processes of manufacture of sectional brooms and brushes, I have devised the subject matter of my present invention and have perfected a broom or brush unit which may be made of any size or of any desired material and in which it will be practically impossible for the particles of material such as fibre, broom corn, bristles, wire, or the like, to be thrown off from the brush or shed, as it is termed in this art. This particular feature of novelty is of great importance as, inthe constructionof a circular brush such as used in connection, with bufling wheels for metal and the like, the brushes rotate at the extremely high surface speed and heretofore serious accidents haveoccured to the workmen by the throwing out or shedding of bristles or wire forming the brushing material, which material has been projected at a tangent from the rapidly rotating wheel and has caused 1 serious injury to the eyes of the'workmen, in a great many instances the sight of the eye being destroyed. Agaiin'I am enabled, by constructing a brush unit according to my present invention, to construct a holder for a circular brush that is extremely simple in construction and easy to manufacture, and exceedingly efficient in operation. Also ,tures of the construction 1922. Serial No. 563,853.

I make make brooms of brush or push type in which my improved brush units are employed, the broom or brush head being ex tremely simple, endurable, andit may be made of any length and width.

Various other advantages and novel feaand arrangement of parts, in addition to those above pointed out, will appear as the description of the invention progresses.

In the accompanying drawings illustrating preferred embodiments of my invention.

Fig. 1 is an elevation of one form of my improved brush unit;

F 2 is a front elevation of a circular brush holder;

Fig. 3 is an end elevation of Fig. 2 with one of the end plates removed and with a brush unit shown in position:

Fig. lis an end elevation of another form of my improved brush unit;

Fig. 5-is a front elevation of Fig. 4;

Fig. 6 is an end elevation of a circular brush holder similar in character to the holder shown in Fig. 2 and 3, but adapted to hold the modified form of brush unit illustrated in Figs. 4: and 5, the end plates of the and a brush unit ofthe type shown in Figs. 4 and 5 in position;

Figs. 7, 8, 9, l0, and 11 illustrate a further form of improved brush unit and the method of manufacturing the same, Fig. 7 being an end elevation of the brush unit, Fig. 8 a central, vertical, longitudinal section therethrough, Fig. 9 a length of tube from which the brush clamping means is made; Fig. 10 is a view of Fig. 9 after the slotting operation has been performed, and Fig. 11 a sectional view of the clamping means after the bending operation has taken place and prior to its incorporation in a brush unit.

Referring to the drawings, and particularly to Figs. 1, 2, and 3, 10 designates a bundle of wires or fibrous material, or any other suitable brush or broom making material, folded upon itself about a pin or peg 11 and such bundle firmly clasped to hole the same in position and formed to firmly clasp the pin 11 by means of a gripping ring or wire 12. The resulting structure is a broom or brush unit in which the fibres, or other material of which the bundle is c0mcircular brush holder being removed posed, being folded upon itself, will prevent the bundle from shedding its fibres as is apt to be the case when the bundle of fibres is clasped at one end. In using this form of improved bundle to form, say, a cireular brush, I preferably provide a shaft 13 on which is positioned a flange 14: provided with a plurality of equally spaced holes 15, the number of holes depending on the diameter of the brush desired and on the thickness or size of the bundles 10 to be employed. The perforated plate 1 1 abuts against a nut 16 screwed onto a threaded portion 17 on the shaft 13, and adjacent the plate 14 is a block 18 which may be of wood or any other suitable material and provided with a plurality of substantially U shaped cut-out portions 19, the number of these cutout portions 19 being equal in number to the number of holes 15 in the plate 1 1 and of a size suitable for holding a bundle 10. One face of this block 18 abuts against one face of theplate 1 1-, and on the opposite face of'the block 18 fits a plate 20 similar in all respects to the plate 1 1. The plates 14 and 20 and the block 18 are firmly held in position on the shaft 13 and against the nut 16 by means of a nut 21 screwing onto a threaded portion 22 on said shaft 13. To assemble this form of circular brush, the plate 20 is removed and a plurality of bundles 10 fitted into the U shaped cut-outs 19 in the block 18, one end of the pins 11 of the bundles 10 fitting into the perforations 15. When all the U shaped cut-outs 19 are filled,

the plate 20 is placed in position, the other end of the pins 20 fitting into the holes 15 in such plate 20, and the entire apparatus serewed'together in position by the nut 21.

Referring now to Figs. 4, 5, and 6, 23 designates abundle similar in characteristics to the bundle 10 and provided with a clamping or holding ring 12 as in the case of such bundle 10. In this form, however, I dispense with the pin that was employed in the form shown in Fig. 1. Assuming that ,it is desired to form a circular brush from thismodification of my invention, having an outward appearance similar to that shown in Fig. 3, I employ a circular plate 24 amounted in the usual manner on shaft 13 and on oneface of this plate 2a and in a circle-of 'anysuitable diameter, the diameter depending onthe external diameter of the plate-24c, and on the number of bundles 10 it is desired to employ in building the brush, and rivetted'in such plate a plurality "of equally spaced pins 25 of a diameter fsuchas to fit the opening or eye at the top fof the bundle 23 and of any suitable length.

On the shaft 13, and adjacent one face of the plate 2 1, is a member 18 provided with a plurality fof substantially U shaped cut-outs 19, the number of cut-outs 19 being equal to "the number of pins-25 and of a size suitable to receive the eye end of the bundle 2?. A plurality of bundles, one for each pin 25, are inserted in position and a plate 20 is placed on the shaft 13 and against. the exposed face of the member 19, the pins 25 fitting into the perforations 15 in the plate 20. After this last operation. the members 2 1, 18, and 20 are forced together and held inposition in a manner similar to that described with respect to Figs. 2 and 3.

Referring now to Figs. 7. 8, 9, 10 and 11 wherein I have shown a form of my inven tion in which it may be desirable to form the eye of the bundle 26 about a metallic member, I have shown a length of tube 27, in Fig. 9, bevelled, as shown at 28, at each end. of this tube. After bevelling, a plurality of saw-cuts 29 on each end of the tube 27 are provided, the depth of these saw-cuts being such as to leave the central portion 30 of the tube 27 of sufiicient length to account for the depth or thickness of the bundle 26. as shown in Fig. 8, and the saw cuts are made in such a manner as to cut away practically one-fourth of the circumference of the tube and leave three equally spaced arms 31 at each end of the central portion 30. The next development of the tube 27 is shown in Fig. 11 where the spaced arms 31 are folded over in substantially a half circle. In this condition, the bundle 26 is folded on itself and around the central portion 30 of the tube 27 and the outstanding or straight arms 31 are folded. as shown in dotted lines in Fig. 11 and in full lines in Fig. 8 firmly clasping the fibrous or other nuiterial of the bundle 26 at a plurality of points. In this folding over operation. the bevelled portions 28 of the ends of the arms 31 assist in guiding the material of which the bundles 26 are composed, into and under such arms. The form of the invention just described with respect to Figs. 7, 8, 9, 10 and 11 may be employed in building a circular brush of the type shown in Figs. 2 and 3 by first inserting through the central portion 30 of the tube 27 a pin similar in character to the pin 11 in Fig. 1, or may be employed with the member 24:, as shown in Fig. 6.

Various other modifications other than those illustrated in the drawings and described above, will suggest themselves to those skilled in the art, and I do not limit myself, therefore, to the exact constructions above described herein other than as set forth in the appended claim. My present. invention is furthermore suitable for use with brooms or brushes of any kind, paint brushes and the like, as well as brooms and cleaning brushes. This is an important feature of the present unit, the same being universally applicable on brushes or brooms for all purposes.

Having thus described my invention, What central portion of said tube and at a point I claim as new is: intermediate the ends of said bundle, said In an improved broom or brush unit, the arms folded over said bundle to firmly clasp 10 combination of a metallic tube, a plurality the fibres, or other material, in position. of arms extending outwardly from each end In testimony whereof, I have signed my thereof, a bundle of fibres, or other suitable name to this specification. brush making material, folded about the HARRY DRAPER NEFF.

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