Nova Patents
US914501A

Tooth-brush.

Abstract

This record has no abstract on file.

Term

Term ended

Expired 9 March 1926, 100.5 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

1 claim: 1 independent, 0 dependent

  1. 1
    . What I claim as my invention ιέ:— 1. A brush head having an oblong recess with undercut side walls formed therein . and a plurality of rows of holes at the bottom of the recess, an unperforated portion being left between the outer rows of holes 110 To all whom it may concern: Be it known that I, Donald McEachern, of Argyle, in the Province of Ontario, Canada, have invented certain new and useful 5 Improvements in'Tooth-Brushes, of which the following is a specification. . My object is to devise a tooth brush in which is provided a suitable retainer for a liquid dentifrice and water, and means tor 10 holding the bristles in shape and which is nevertheless as simple and cheap to construct as a brush of ordinary construction. A brush constructed in accordance with· . my invention comprises a back in which 15 tufts of bristles are set in the ordinary way, and an inwardly inclined wall surrounding the tufts or bristles but only in contact with, the bristles at its upper inner edges, thus - leaving a reservoir surrounding the bases or 20 the tufts of bristles. . Figure 1 is a side elevation ot a brusn constructed in accordance with my invention, the head of the brush being in section. Fig. 2 is a cross’section through the head ot 25 the brush on an enlarged scale. Fig. 3 -is a plan view of the brush with the bristles renioved. 4 In the drawings like letters of reference indicate corresponding parts m the different 30 figures· bfugh handle> o f any derived shape, and provided with the hole a by means of which it may be hung to a suitable 35 P The head B of the brush has an oblong recess cut therein to form walls C integral ’ with the back D. The rides of the recess are undercut so that the walls C incline inwardly from opposite sides. The ends ot 40 the recess are also undercut, particularly tne rear end, the undercutting of the forward end of the recess not being of so much importance. ·' . In the back at the bottom of the recess are 45 formed a plurality of rows of holes b m which are inserted the tufts of bristles E. The holes, it will be seen, are set inwardly from the bases of the ride walls so that an imperforated portion of the back is left be50 tween the outer rows of holes and the side walls. The walls are of such a height and so inwardly inclined that they contact with the sides of the outer rows .of tufts of bristles at a point intermediate their fixed and 55 free ends. 614,501 and the side Avails of the recess, in combination with tufts of bristles set in said holes . and projecting from the recess. . 2. A brash head having an oblong recess 5 with undercut side and rear end walls formed therein and a plurality of rows of holes at the bottom of the recess, an unperforated pOTtion. being left between the outer rows of holes and the side walls of the re cess, in combination with tufts of bristles 10 set m said holes and projecting from the recess. Argyle, Ont., 2nd April, 1908. DONALD McEACHERN. * Signed in the presence ot— John G. Ridout, Belle Logee.