Improvements in Fountain Marking Brushes.
Year: 1893

page_text: Date of Application, 17th Jan. 1893-Accepted, 4th Mar., 1893
COMPLETE SPECIFICATION.
Improvements in Fountain Marking Brushes.
I, DAVID WESLEY WHITAKER, Printer, residing at Durham, County of
Durham, State of North Carolina, United States of America, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following-
statement:-
My invention relates to improvements in fountain marking brushes, the object
being to provide a novel construction of the same, whereby the flow of the liquid
paint from the supply receptacle to the bristles or brush may be regulated, or
entirely cut off as may be desired.
In fountain marking brushes it is a great desideratum to have efficient means to
control the supply of paint to the brush, owing to variations in limpidity or fluidity
of the liquid.
1 have accomplished the above by my invention, which consists in the novel:
construction and combination of parts hereinafter fully described and claimed.
In the accompanying drawing:
Figure 1 is an elevation of a fountain marking brush constructed in accordance.
with my invention;
Figure 2 is a central vertical section of the same;
Figure 3 is a cross section on the line -, Figure 2;
Figure 4 shows the supply and regulating tubes, detached.
In the said drawing, the reference numeral 1 designates a bulb of india rubber
or other suitable material having aligned apertures or openings at the top and
bottom. This bulb forms the paint receptacle, and passing up thereinto through
the lower aperture is a supply tube 2, closed at its upper end and having an
elongated aperture 3, intermediate of its ends.
In the lower end of the supply tube is a hollow plug 4, having its lower end cut
away forming a small tube 5, around which the bristles are placed and securely tied
or wired thereto.
Located in the aperture in the upper end of the bulb is a thimble 6, which is.
secured to said bulb, and passing through this thimble is a tube 7, closed at its.
upper end and adapted to fit over and slide upon the supply tube 2.
The operation is as follows: To fill the paiut receptacle or reservoir, the tube 7
is operated so as to uncover the opening 3, the plug 4 is removed, and the lower
end of the supply tube is then inserted in a vessel containing a quantity of the
proper liquid paint. The bulb is next alternately contracted and expanded, when
the paint will be drawn into the bulb, as will be readily understood. When the
requisite quantity has been supplied to the receptacle or reservoir, the plug is again
inserted in the tube 2, and the tube 7 adjusted so that a regulating supply will be.
fed from the receptacle to the tube 2, through the opening 3.
By increasing or decreasing the area of this opening, by means of tube 7, the
amount of the paint supplied is increased or decreased, and by closing said opening
completely, the supply is entirely shut off.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. In a fountain marking brush, the combination with the elastic and flexible
bulb open at top, and at its upper end provided with a thimble, of the supply tube.
having an elongated opening near its upper end, a removable hollow plug to which.

page_text: the bristles are secured located in its lower end, and the vertically movable tube
passing through the thimble and slidable upon the supply tube, substantially as and
for the purpose specified.
Dated this 16th day of January 1893.
F. BOSSHARDT & Co.,
4. Corporation Street, Manchester, Agents to Applicant.