A Reservoir Painting Machine for Painting Sash Bars on Horticultural Buildings and the like.
Year: 1896

page_text: Date of Application, 6th Feb., 1896-Accepted, 16th May, 1896
COMPLETE SPECIFICATION.
A Reservoir Painting Machine for Painting Sash Bars on
Horticultural Buildings and the like.
I JOHN ROBERT HAMILTON of Providence Nurseries, Waltham Cross in the
County of Hertford, Nurseryman 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 consists of a reservoir painting machine for painting sash bars on
horticultural buildings & the like & is applicable to bars of any size & shape & has
for its object the construction of a machine comprising detachable sets of brushes
fixed in an adjustable case on to which a reservoir is fixed to furnish automatically
or otherwise, a supply of paint directly on to brushes and sash bar.
A handle of such length as may be proportionate to length of sash bar to be
painted is attached to machine to enable the operator to reach with machine any
necessary height without the aid of ladders or any other climbing apparatus.
The machine is placed in position on bar at bottom & by aid of long handle is
pushed to top, when at top, sufficient paint is liberated for painting the bar, on to
which it is directly discharged through guide tubes. The machine is then drawn
down & passed over the bar as many times as may be necessary. Twice generally
being sufficient.
In order that my invention may be clearly rendered, reference may be had to
the accompanying drawings in which :-
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Similar letters are used to indicate like parts in all views.
In constructing a painting machine according to my invention I employ a case,
comprising a top (a) to which by means of binges are attached sides (6 & c) &
ends (d & e) are firmly fixed.
On the said case is fixed a reservoir (f) with tubes (9) leading paint to cup (h)
whence it is distributed through tubes (i) directly on to brushes & sash bar.
The bandle () is attached to case by means of a hinge & varies in length
according to length of sash bar to be painted.
To the under side of top (a) of case is fixed a valve (k) governing supply of
paint from reservoir (f) through tubes (g) & kept shut by spring (D).
The automatic working of the valve (k) is as follows; a chain passing over a
pulley wheel (m) connects the valve lever to a balance rod (n) which is supported
by eyes fixed to handle (). When the machine is pushed to the top of a sash
bar the handle must necessarily be lowered, thereby causing the balance rod (n)
to slide back, which by the action of its weight opens the valve (k) which
liberates sufficient paint to supply brushes for painting bar.
When the machine
is drawn to the bottom of the bar the handle must be necessarily raised to a
position nearly vertical which causes the balance rod (n) to slide forward, thereby
allowing valve to close again & shut off supply of paint.
In order that the machine may be kept in position while traversing the bar I
employ guide wheels or runners (o). These are fixed to spindles (p) which are
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page_text: attached to plate (g) by means of a pivot (r) allowing spindles (p) to play that the
said runners may grip the bar by power of spring (s).
The machine is used with sets of two or sets of three brushes, so constructed as
to adapt themselves to any shaped bar & adjustable to any sized bar required
to be painted.
The side brushes t. t. are haired obliquely and are fixed to the sides b & c. & also
adjusted by means of adjustment screws v. v. These adjustment screws are
composed of two nuts having a male & female screw respectively. The nuts
are placed one on either side of the side b. or c. & are screwed together to grip the
side and can be raised or lowered in the slot c 1. to adjust the brush up or down.
A screw pin (d1) passes through the centre of the said nuts & is used to adjust
the brushes backward or forward and may be turned by means of a milled head
which is screwed on to the said screw pin & fixed by means of a backnut ( ).
The side brushes t. t. are kept in contact with the bar by means of an open
coiled spring w. which is placed inside the front handle z. & is coiled round the
push rod y. & obtains its power by being held down on to top a. by means of a
pin f1. fixed in said pushrod y.
The top brush is haired straightly & is held in position and adjusted by means of
adjustment screw pins x. z. which can be turned to raise or lower the brush by
means of the milled screw knob z 1. which is screwed on to the adjustment screw
pin and fixed, by means of a back nut g 1. In order to place the machine on the
sashbar in position for working, it is necessary to open. brushes t. t. & also
runners o. o. This is effected by pressing down the pushrod y. which passes
through the front handle z. & works in duplicate both runners o. o. & brushes t. t.
In order to accomplish this object I employ two connecting pieces a 1 which are
attached to sides 6 & c by means of nuts; 1;. these are coupled with pushrod y. by the
bar 1. 1. passing through them & a nut being screwed on the bar, at the joint k 1.
The downward pressure of the pushrod y at the joint on the connecting pieces a. 1.
forms a lever which opens the sides b & c to which the brushes t t are attached.
The opening of the runners o. o is as follows:-On to the top end of the
levers p. p. (Fig. 5) are fixed two links b. 1. linked in the centre by means of a bolt
& nut n.1. A bar 1 is fixed to pusbrod y. & passes through a slot m 1 in plate q.
so that it is directly over the links b. 1. The downward pressure of the bar l. 1.
on the centre of the said links draws together the tops of the levers p. p. which
turn on the pivots rr & thus open the runners o. o: which are attached to the
bottom ends of the said levers by means of screws. Thus the brushes &
runners are opened to receive the bar upon which they close by power of
springs (w & s).
Having now particularly described & ascertained the nature of my said inven-
tion & in what manner the same is to be performed, I declare that what I
claim is :-
1st. A reservoir painting machine for painting sash bars on horticultural
buildings & the like.
2nd. Three sides of the sash bar being painted at one & the same time.
3rd. The paint is supplied from the reservoir directly on to brushes & sashbar
the supply being regulated automatically.
4th. No climbing apparatus is necessary, any length of bar can be reached with
machine & properly painted, height & distance being governed & absolutely
controlled by length of handle.
Dated this 6th day of February 1896.
JOHN ROBERT HAMILTON,
Applicant.