TRUVIDIONAL Machinery for Drilling Holes in Brush Bodies.
Year: 1896

page_text: Date of Application, 20th Apr., 1898
Complete Specification Left, 29th Jan., 1897-Accepted. 10th Apr., 1897
και οι συμπ
Complete Specification Left, 29th Jan., 1897-Accepted. 10th Apr., 1897
TRUVIDIONAL
Machinery for Drilling Holes in Brush Bodies.
I, CARL EDUARD FLEMMING, of Schöenheide, Erzgebirge, Germany, Brush
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to a machine for drilling holes in brush bodies so arranged
as to form holes in such brush bodies or backs which are either straight, concave or
convex in the direction of their length, and the surface of whose cross section is either
fat, convex or concave, each longitudinal row of such holes being situated in one
and the same plane while the separate planes of the several rows are either parallel,
or intersect on a certain axial line. The extensions of the geometrical axes of these
holes (with the exception of those that are bored parallel) run in each longitudinal
row to a common centre, the planes formed by the bristle tufts, lying one above the
other in any desired number.
In addition, it is possible to bore the holes so as to lie not only in parallel rows,
but also in rows standing at an angle to each other, or in curved rows, and the holes..
may be of any desired depth. The horing of the holes is effected by means of an
axially shiftable drill and by a support for the brush body to be operated upon which
is adjustable in every direction.
In the various forms of the brushes produced, the centre at which the extensions of
the axes of the holes of a longitudinal row intersect, may lie either in front of or
behind the brush body, according as it is curved concavely or convexly in the longi-
tudinal direction. It always lies in a perpendicular line that passes through the centre
of a template wheel to be presently described.
The axis on the other hand in which the planes intersect that pass through the
longitudinal rows, is always situated behind the brush body, the direction of the
holes of the several longitudinal holes being determined by turning the support that
holds the brush body round this axis in its upward and downward adjustment, the
support being provided with a pointer-like extension which enables the angle to be
read off on a quadrant scale.
The machine is constructed as follows:-
A head stock mounted so as to slide longitudinally upon a bed plate, carries a
tubular shaft driven by a belt pulley and containing a sliding tubular drill spindle.
The headstock carries immediately below the pulley of the shaft and parallel thereto,
a gauge bar serving as stop, adjustable by means of a thumb nut, the front end of
which bar has a knife edge, while a second stop in form of a roller is mounted in a
bracket on the head stock, just above the bed plate of the machine. The headstock
can be shifted by means of a lateral hand lever, to and from the support frame that
holds the brush body. On a slide on the bed plate in front of the headstock is
mounted a template wheel turning on a vertical pivot, and rotated by a worm on a
spindle carried at the outer end by a bracket projecting laterally at an angle from
the bed plate, while the inner end of the spindle is carried by a block adjustable in a
slotted bracket that is mounted on the centre pin of the template wheel; this arrange-
ment enables the spindle aud worm to be shifted inwards or outwards to suit different
sized template wheels. The spindle carries a crank handle for turning the worm and
template wheel through any desired angle.
On the same vertical axis as the template wheel is mounted the base of the support

page_text: for the brush body so that by the partial rotation of the template wheel the base and
support are also turned on the said axis into corresponding angular positions relatively
to the axis of the drill. On each side of this base is carried a screw spindle, the front
ends of which spindles are attached to a bar that bears against the before mentioned
stop roller on the headstock.
The screw spindles are adjustable on the base by means of screw nuts so as to
project to a greater or less extent in front of the same, and thus determine the
extent of the advance of the drill towards the brush body held by the frame
support.
The base has at its rear end a column, on the upper end of which is carried a
slotted bar secured thereto in any position by a clamping nut on the end of the
column, and this bar carries at its front end the support frame for the brush bodies,
so that by shifting the slotted bar on the column, the distance between the support
frame, and the head stock, as also its position relatively to the axis of the template
wheel can be varied. The front end of the slotted bar is connected by a horizontal
pivot joint with the frame support, so that this can be made to assume any desired
inclination in either direction to the vertical plane, such inclination being indicated
by a pointer arm on the support moving over a quadrant scale fixed on one side of
the slotted bar, which pointer arm also serves to fix the support in the inclined
position being provided with a clamping screw working in a slot in the scale.
The frame support is constructed with a double slide-rest mechanism, that is to
say, with a slide adjustable in a horizontal transverse direction on the piece that is
pivotted to the slotted bar, and a second slide that is adjustable vertically on the first
slide. This second slide has again a vertically sliding brush body holder mounted
upon it, by means of which the brush body to be operated upon is clamped between it
and an arm projecting from the second slide. These several slides and holders are
adjusted by means of suitable adjusting screw spindles, so as to bring the brush
body into any desired position in front of the drill on the head stock.
From the above described arrangement of the frame support on. the slotted bar, it
will be seen that if the latter is shifted backward on its column so as to bring the
brush body backward beyond the pivot of the template wheel, it will, in turning on
such pivot, be adapted to bring different points of a concave brush body surface
successively in front of the drill, while if the slotted bar and support are shifted
forward beyond the said pivot it will be adapted to bring different points of a convex
brush body surface in front of the drill. If on the other hand the slotted bar and
support be brought to the middle position, and instead of turning them on the pivot
of the template wheel, the slide rests carrying the brush body be shifted laterally or
vertically, the drill can be made to cut parallel holes in the brush body upon either a
flat or curved face thereof. Again, by turning the frame support with the brush
body upon its horizontal pivotal connection with the slotted bar, the drill can be
made to cut holes in the brush body in positions radiating from such pivot as a
centre.
In drilling the holes, the sliding headstock is moved forward by the hand lever
towards the brush body held in the desired position by the support frame, the depth
to which the drill penetrates being governed by the before mentioned stop which
comes in contact with the bar carried by the screw spindles of the support base.
It will be seen that by the above described mechanism the brush body can be
presented at every possible angle to the drill, so as to drill holes either parallel or at
every possible angle therein and on every possible form of surface, whether flat, or
convex or concave in one direction and straight in the other, or convex or concave in
both directions.
Dated this 28th day of April 1896.
ABEL & IMRAY,
Agents for the Applicant.

page_text: Machinery for Drilling Holes in Brush Bodies.
I, CARL EDUARD FLEMMING, of Schöenheide, Erzgebirge, Germany, Brush Manu-
facturer, do hereby declare the nature of this invention, and in what manner the
same is to be performed, to be particularly described aud ascertained in and by the
following statement :-
This invention relates to a machine for drilling holes in brush bodies so arranged as
to form holes in such brush bodies or backs which are either straight, concave or
convex in the direction of their length, and the surface of whose cross section is either
flat, convex or concave, each longitudinal row of such holes being situated in one and
the same plane while the separate planes of the several rows are either parallel, or
intersect on a certain axial line. The extensions of the geometrical axes of these
holes (with the exception of those that are bored parallel) run in each longitudinal
row to a common centre, the planes formed by the bristle tufts, lying one above the
other in any desired number.
In addition, it is possible to bore the holes so as to lie not only in parallel rows, but
also in rows standing at an angle to each other, or in curved rows, and the holes may
be of any desired depth. The boring of the holes is effected by means of an axially
shiftable drill and by a support for the brush body to be operated upon which is
adjustable in every direction.
In the various forms of the brushes produced. the centre at which the extensions
of the axes of the holes of a longitudinal row intersect, may lie either in front of
or behind the brush body, according as it is curved concavely or convexly in the
longitudinal direction. It always lies in a perpendicular line that passes through the
centre of a template wheel to be presently described.
The axis on the other hand in which the planes intersect that pass through the
longitudinal rows is always situated behind the brush body, the direction of the holes
of the several longitudinal holes being determined by turning the support that holds
the brush body round this axis in its upward and downward adjustment the support
being provided with a pointer like extension which enables the angle to be read off on
a quadrant scale.
The machine is represented in the accompanying drawing in which
Figure 1 shews an elevation of the machine in the position for drilling brush
bodies that are convex in the direction of their length.
Figure 2 a plan of the machine represented in Figure 1.
Figure 3 an elevation of the machine in the position for drilling brush bodies being
concave in the direction of their length.
Figure 4 a plan of the machine represented in Figure 3.
Figure 5 a section on line 1-1 of Figure 1.
Figure 6 a front view of the ratchet wheel of the worm spindle.
Figure 7 a plan and the appertaining sections of a tooth brush produced by the
position of the mechanism shown in Figures 1 & 2.
Figure 8 a plan and the appertaining sections produced by the position of the
mechanism shewn in Figures 3 and 4.
Figure 9 a straight brush body the bristles of which are convexly arranged in the
direction of their length.
Figure 10 a straight brush body the bristles of which form a concave surface.
Figure 11 a brush body being straight in the direction of its length and breadth.
Figures 12-16 several other forms of brush bodies and arrangements of bristles
produced on this machine.
A head stock e mounted so as to slide longitudinally upon a bed plate t carries
a tubular shaft driven by a belt pulley and containing a sliding tubular drill

page_text: spindle o. The headstock carries a stop in form of a roller u which is mounted
in a bracket on the head stock, just above the bed-plate t of the machine.
The headstock can be shifted by means of a lateral hand lever to and from the
support frame that holds the brush body. On a slide on the bed plate t in front of
the bendstock is mounted a template wheel a turning on a vertical pivot and
rotated by a worm on a spindle carried at the outer end by a bracket projecting
laterally as an angle from the bed plate & while the inner end of the spindle is carried
by a block adjustable in a slotted bracket that is mounted on the centre pin of the
template wheel a; this arrangement enables the spindle and worm to be shifted
inwards or outwards to suit different sized template wheels.
The spindle carries a crank handle for turning the worm and template wheel
through any desired angle.
and
For this purpose the crank handle y is mounted loose on the spindle
carries a pivotted reversible pawl y' which engages with the teeth of a ratchet wheel
fixed on the spindle k, so that on turning the handle y, say, to the left hand at
Figure 6, the pawl y will carry the wheel and spindle round in the same direction,
while if the handle he moved to the right, the pawl will slide over the wheel. If
on the other hand the pawl be turned over to the right hand at Figure 6, the
turning of the handle to the right will cause the wheel and spindle to be carried
round in that direction. To the bracket Z carrying the spindle k is fixed an arm Z
carrying a flat spring e the end of which has a pin that is adapted to engage
with one of a series of holes formed round the periphery of the ratchet wheel (not
shewn on the drawing) and thus to hold the wheel and spindle stationary.
When it is desired to turn the wheel and spindle through a certain angle so as
to move the template and brush body correspondingly, the spring is first drawn
back so as to disengage its pin from the wheel z, after which the wheel and spindle
are turned through the required angle and the pin of the spring v¹ is then allowed
to engage with a hole in the wheel again.
On the same vertical axis as the template wheel a is mounted the base of the
support for the brush body so that by the partial rotation of the template wheel
the base and support are also turned on the said axis into corresponding angular
positions relatively to the axis of the drill.
On each side of this base is carried a screw spindle vv, the front ends of which
spindles are attached to a bar w that bears against the before mentioned stop roller
on the headstock e.
The screw spindles are adjustable on the base by means of screw nuts so as
to project to a greater or less extent in front of the same, and thus determine the
extent of the advance of the drill towards the brush body held by the frame
support d.
The base has at its rear end a column m on the upper end of which is carried
a slotted bar & secured thereto in any position by a clamping nut on the end of
the column, and this bar carries at its front end the support frame d for the brush
bodies, so that by shifting the slotted bar b on the column the distance between
the support frame d and the head stock e, as also its position relatively to the axis
of the template wheel a can be varied. The front end of the slotted bar b is connected
by a horizontal pivot joint e with the frame support d, so that this can be made to
assume any desired inclination in either direction to the vertical plane, such inclination
being indicated by a pointer arm on the support, moving over a quadrant scale fixed
on one side of the slutted bar 6 which pointer army also serves to fix the support in
the inclined position being provided with a clamping screw working in a slot in
the scale.
The frame support d is constructed with a double slide-rest mechanism, that is to
say, with a slide adjustable in a horizontal transverse direction on the piece that is
pivotted to the slotted bar 6 and a second slide that is adjustable vertically on the
first slide.
This second slide has again a vertically sliding brush-body holder mounted upon it,
by means of which the brush body to be operated upon is clamped between it and an

page_text: arm projecting from the second slide. These several slides and holders are adjuste
by means of suitable adjusting screw spindles p q so as to bring the brush body into.
any desired position in front of the drill on the head stock e.
From the above described arrangement of the frame support on the slotted bar />
it will be seen that if the latter is shifted backward on its column so as to bring the -
brush body backward beyond the pivot of the template wheel a it will, in turning 0:1
such pivot, be adapted to bring different points of a concave brush body surface.
successively in front of the drill, while if the slotted bar b and support d are shifted
forward beyond the said pivot it will be adapted to bring different points of a convex
brush body surface in front of the drill. If on the other hand the slotted bar 6 and.
support be brought to the middle position, and instead of turning them on the pivot
of the template wheel, the slide rests C carrying the brush body be shifted laterally or
vertically, the drill can be made to cut parallel holes in the brush body upon either a
flat or curved face thereof. Again, by turning the frame support with the brush body
upon its horizontal pivotal connection c with the slotted bar, the drill can be made to
cut holes in the brush body in positions radiating from such pivot as a centre.
In drilling the holes, the sliding headstock e is moved forward by the hand lever r
towards the brush body held in the desired position by the support frame d the depth
to which the drill penetrates being governed by the before mentioned stop u
which comes in contact with the bar o carried by the screw spindles of the support
base l.
It will be seen that by the above described mechanism the brush body can be -
presented at every possible angle to the drill, so as to drill holes either parallel or at
every possible angle therein and on every possible form of surface, whether flat, or
convex or concave in one direction and straight in the other, or convex or concave in.
both directions.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I.
claim is :-
1. In machinery for drilling holes in brush bodies the combination of a slotted bar b
adjustable in the direction of the axis of the drill spindle, with the brush holding:
support d capable of being turned in the vertical direction on the horizontal pivot c
and of being adjusted both in the longitudinal and the transverse direction, as and for
the purpose set forth.
2. In machinery for drilling holes in brush bodies, the combination of the bed-plate
of the support with the template plate a for adjusting the said bed plate in horizontal
direction, as and for the purpose set forth.
3. Ir. machinery for drilling holes in brush bodies the combination of the bed-plate L.
with the adjustable bar w and the stop u as and for the purpose set forth.
Dated this 29th day of January 1897.
ABEL & IMRAY,
Agents for the Applicant..