Improvements in and relating to Brush-making Machines.
Year: 1894

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c., Act, 1883), as allowed by
the decision of the Comptroller General of the 21st day of December 1896.
Date of Application, 3rd Dec., 1894--Accepted, 5th Jan., 1595
COMPLETE SPECIFICATION (AMENDED).
Improvements in and relating to Brush-making Machines.
I, CARL REHSE, of Striegau, in the Province of Silesia, German Empire,
Engineer 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 :-
This invention refers in general to machines for boring brush-blocks, and
furnishing the holes with the bundles of bristles, and in particular to machines of
the kind in which there is a special movable, working table for the reception of the
brush-block to be bored, and a special movable working table for the reception of
the brush block to be furnished with bristles, and in which the two working tables
may be moved simultaneously in the same way, and by the same means.
The brush-blocks worked upon machines of the kind afore mentioned could be
curved ones, it is true but they could be curved in one direction only, not in two
lying rectangularly one to the other. This is a drawback, and the object of my
invention is to do away with said drawback by supporting the boring table as well
as the stopping table by universal joints so that both may be inclined in any
direction, and for any angle.
The brush-blocks may thus be curved not only in their longitudinal direction,
but in their cross-direction, too. In either case, the holes are bored radially with
respect to the two directions; that is to say, if the holes are regarded in the
longitudinal direction of the brush block, the imaginary axes of the holes will seemn
to proceed from one point; and if the holes are regarded in the cross-direction of
the brush-block, the imaginary axis of the holes will also seem to proceed from one
point. The said two points may coincide, or may not. They will coincide, if the
respective surface of the brush-block forms part of the surface of a sphere; this,
however, will be but seldom the case, and the said two imaginary points will thus,
generally, lie in planes of different height, according to the difference between the
two curves just in question.
It will be seen from the foregoing two paragraphs, that the two tables are to
move simultaneously in such a way, that the position of the block held by the
stopping table is always and perfectly equal to that of the block held by the
boring-table. After a block has been bored, it is transplaced to the stopping-
table, and is furnished with the bundles of bristles whilst another block is bored.
Owing to the equal positions of the two blocks worked at a time, the two holes
just worked, (ie. that which is bored, and that which is furnished with the bristles)
will always be perfectly parallel; obtaining this constant parallelism of the
respective two holes of the blocks, in spite of the radial position of the holes of
each block, is the purpose of any invention.

page_text: My improvements in the machine in question have to do nothing at all
with the boring-device proper, or with the stopping-device proper; they are
relating solely to the working-frames, and to the mechanisms connected therewith.
Therefore, in order to avoid an unnecessary complicateness of the drawings,
I have dispensed in the same with the boring-device as well
as with the
stopping-device. In said drawings similar letters denote similar parts throughout
the several views, and
Fig. 1 is a side-view of the machine, the upper devices (the boring- and the
stopping-device) being left away;
Fig. 2 is a front-view of the two working-frames ;
Fig. 3 is a plan of the machine,
Fig. 4-7 are some details.
The large cog-wheel a (Figs. 1 & 3), the short shaft a¹ (Fig. 1) of which is held
by the bearing a², is provided at its front-side with the curved guide-pieces a³, and
at its rear-side with similar pieces at. There are thus formed two curved guide-
ways, by means of which two slides (described in the next paragraph) may be
displaced. One of these slides causes the two working-tables to swing forwards
and backwards; the other causes them to swing sidewards, so as to effect thereby
the desired inclined position of the two brush-blocks.
Slide (Fig. 1) is the one effecting the first-mentioned motion of the working-
tables; the said slide is provided with a pin and roller taking into the curved
guide-way a³, and is guided itself by a small frame ¹ fixed to the rear-table c of
the machine. Slide 6 is connected by means of a short rod 63, and an adjusting-
piece (Figs. 1 & 3) with a slide 4 guided by the angular proje tions of the
frame. Part of said slide 6 is cogged, and is in gear with a cog-wheel 6 secured
to a shaft b. The latter carries another cog-wheel 68 by means of which is driven
another cogged slide or rack (Figs. 1, 3, 5 & 6) that is lying on a' level with
slide afore mentioned.
The front-end (or, with regard to Figs. 1 & 3, left-hand end) of said rack b
carries by means of a projection 610 a guide composed of a shorter outer part bu
and a longer inner part 612 (Figs. 1, 3, 5 & 6). Within said guide may be displaced
a slide d, the bent ends of which are coupled to the working-tables e e¹ of the
machine. This coupling is effected by means of universal joints consisting each
of a link d (Figs. 5 & 6) hinged to the respective table, and of another link d³
hinged to the said former link, as well as to the respective end of the slide d, the
connecting-pius at the two ends of the link d2 being placed at right angles to each
other. If, therefore, rack 6 is moved in longitudinal direction, the working
tables ee will be caused to swing on the bolts (Figs. 1 & 2); if, however, the
frames holding the working tables, are caused to swing on the bolts g (Figs. 1 & 2),
the slide d will be displaced within its guide 66, without hindering the latter to
transmit the movement of rack upon the said tables.
Before describing the means, by which the tables are caused to swing upon the
bolts g, I think it useful to de-cribe the construction of the movable tables them-
selves, and of the movable frames holding them. As, however, the two tables as
well as the frames are of exactly the same construction, it will be sufficient to
describe but one of each of them.
The table adapted to receive the bored brush-block is provided with two legs e
(Figs. 2 & 7), each of which has a slot e¹. Within said slot may be displaced and
adjusted a slide e, which holds a long pivot e², and which, after being adjusted in
height, is fixed to the respective leg of the table.
The outer projecting ends of the pivots e³ are carrying each a slide f¹,
that may
freely ascend or descend within a slot f₁ (Fig. 1) provided in the two upper
arms of the frame f. The upper ends of these arms are carrying bolts f, the
inner projecting ends of which take into curved slots es (Fig. 7) provided in
exchangeable guide-pieces that are secured to the sides of the table e¹.
latter is thus supported by said bolts, and may swing forwards or backwards
as far as allowed by the length of the said curved slots e. The curvature of
Tho

page_text: the latter is corresponding to the respective curvature of the brush-block. As
however, the machine is intended for brush-blocks of all shapes and sizes, it will be
clear that the said curved guide-pieces must be exchangeable. The radius of
oscillation of the table e' must correspond to the radius of the curve e; therefore,
the pivots must be adjustable in height within the legs of the table. Some
forms of brush-blocks will make it necessary, to lower or raise the table whilst the
respective block is worked; in order to make such movement possible, the pivots
must be allowed to freely ascend or descend within the arms of the frame f.
The two arms of each frame are connected at their rear side by an exchangeable
bar h (Figs. 1-3) the middle portion of which is curved, and is provided with teeth
taking into, or gearing with, a cog-wheel or h³ respectively. All the
parts e... j and h are thus held by said cog-wheels. The fulcrum of each of
the frames is formed by a pivot g arranged in a slide al; the latter may be
adjusted in height within a vertical slot of frame f, and may be fixed to the
latter in any position, just so as above described with regard to the parts 2 ea
and e³. Bolt 9
is elongated rearwards, and carries a slide 9 (Fig. 1), which may
freely ascend or descend within a guide-piece g³ forming part of the main-frame of
the machine; the relation of the parts 92 and 93 is thus the same as above
described with respect to the parts efl and f³. The motives for this arrangement
as well as for the curved exchangeable rack are exactly the same as those for the
former arrangement mentioned, the curve in question being now the cross-curve of
the brush-block instead of the longitudinal one.
In order to move the table-frames f sidewards to and fro by the mediation of
the racks h, the second of the slides operated by the wheel a, or that operated by
the curved guide-way at of the latter respectively, comes into action. This
slide (i, Fig. 3) moves vertically up and down within a guide ¹ fixed to the main-
frame of the machine, and is formed into a rack gearing with a cog-wheel
arranged on shaft (Fig. 3). The latter carries at its front-end the cog-wheel h³
(carrying in its turn the right-hand table-frame, as afore described), and moreover
a cog-wheel (Figs. 1, 3 & 4) that is in gear with a rack arranged above said
wheel. The other end of said rack gears with a cog-wheel (Fig. 4) secured
to a shaft. The latter is arranged parallel to shaft ³, and carries at its front
end the cog-wheel (carrying in its turn the left-hand table-frame).
If, therefore, slide is acted on by the curve-way a', the two frames f, together
with the tables e e¹ will be caused to swing from one side to the other side, and
vice versa; and if, further, slide b is acted on by the curve-way a³, the two tables
alone will be caused to swing from the rear to the front, and vice versa. These two
motions are alternating in such a way, that if a series of holes has been bored,
or stopped respectively, the block makes a movement sidewards with regard to
said series of holes, and the next series is bored, or stopped respectively, in the
reverse direction. This procedure is repeated until the whole block is finished.
There remain still to be described a few details shown in Figs. 1 & 2. As shown
in these figures, the slide g² held by the pivot 9 is provided with a projection 9*
(Fig. 1) against which is pressing a spring 9; the other end of the latter is
resting upon the lower end of an angular piece 9" screwed to the guide-piece g³.
Spring is, thus, compensating part of the weight of the frame with the parts
carried by the same; and the purpose proper of the said arrangement is to prevent
the teeth of the racks as well as of the cog-wheels h¹² from being worn away
Further, in order to obtain a secure contact between the teeth of the
said two parts at every position, the frames are provided each with a weight k
held by a bent arm k¹ in such a position, that said weight is constantly tending to
turn the frame upon, or around, the pivot g.
tco soon.
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 a brush-making machine, the combination with a movable working-table

page_text: adapted to receive the brush-block to be bored, and to be inclined to any plane, of
another movable working table adapted to receive the brush-block to be furnished
with bristles, and also to be inclined to any plane, both the said tables being
coupled so as to be adapted to be simultaneously inclined in the same direction, and
for the same angle, for the purpose as described.
2. In a brush making machine, the combination with a movable working-table
adapted to receive the brush block to be bored, and to be inclined to any plane, of
another movable working-table adapted to receive the brush-block to be furnished
with bristles, and also to be inclined to any plane, each of said tables being
arranged in a separate frame, and being adapted to be oscillated independent of
said frame, as well as together with the same; both the said tables being coupled
so as to be adapted to be simultaneously inclined in the same direction, and for the
same angle, for the purpose as described.
3. In a brush making machine, the combination with a movable working-table
adapted to receive the brush-block to be bored, and to be inclined to any plane,
of another movable working table adapted to receive the brush-block to be
furnished with bristles, and also to be inclined to any plane, each of said tables
being arranged in a separate frame, and being adapted to be oscillated within the
same; each of said frames being adapted to be oscillated on an axis lying
rectangular to the axes of the tables; both the said tables being coupled so as to
be adapted to be simultaneously oscillated on either of said two axes, for the purpose
as described.
4. In a brush making machine, the combination with a movable working-table
adapted to receive the brush-block to be bored, and to be inclined to any plane, of
another movable working-table adapted to receive the brush-block to be furnished
with bristles, and also to be inclined to any plane; each of said tables being
arranged in a separate frame between slotted upright arms of the same, and having
legs carrying pivots taking into said slots; the tables being held within said frames
by bolts secured to one of the two parts, and by slotted guide-pieces secured to the
other of the two parts; said bolts taking into the slots of said guide-pieces, for
the purpose as described.
5. In a brush making machine, the combination with a movable working-table
adapted to receive the brush-block to be bored, and to be inclined to any plane, of
another movable working-table adapted to receive the brush-block to be furnished
with bristles, and also to be inclined to any plane; each of said tables being
arranged in a separate frame between slotted upright arms of the same, and having
slotted legs containing adjustable slides carrying pivots ; said slotted arms containing
slides carried by said pivots; the tables being held within said frames by bolts
secured to one of the two parts, and by slotted exchangeable guide-pieces secured
to the other of the two parts; said bolts taking into the slots of said guide-pieces,
for the purpose as described.
6. In a brush making machine, the combination with a movable working-table
adapted to receive the brush-block to be bored, and to be inclined to any plane, of
another movable working-table adapted to receive the brush-block to be furnished
with bristles, and also to be inclined to any plane; each of said tables being
arranged in a separate frame between upright arms of the same; said arms being
supported by a rack supported in its turn by a cog-wheel; each of said frames
having a central vertical slot containing an adjustable pivot taking into a vertical
guide-way; the shafts of said cog-wheels carrying other cog-wheels adapted to be
driven simultaneously by a common rack, for the purpose as described.
7. In a brush-making machine, the combination with a movable working-table
adapted to receive the brush-block to be bored, and to be inclined to any plane, of
another movable working-table adapted to receive the brush-block to be furnished
with bristles, and also to be inclined to any plane; said tables being connected by
means of universal joints with a rod adapted to be displaced longitudinally within a
guide; the latter being secured to a rack arranged rectangularly to said rod; and

page_text: being adapted to move said tables forwards and backwards by the mediation of
said rod, for the purpose as described.
8. In a brush-making machine, the combination with a movable working-table
adapted to receive the brush-block to be bored, and to be inclined to any plane, of
another movable working-table adapted to receive the brush-block to be furnished
with bristles, and also to be inclined to any plane; each of said tables being
arranged in a separate frame between upright arins of the same; said arms being
supported by an exchangeable curved rack supported in its turn by a cog-wheel;
the shafts of the respective two cog-wheels of the said two frames carrying other
cog-wheels gearing with a common rack; one of said shafts carrying a third cog-
wheel gearing with a cogged slide; the latter being adapted to be displaced by a
grooved wheel, for the purpose as described.
9. In a brush making machine, the combination with a working table e adapted
to receive the block to be bored, and to be inclined to any plane, of another
working table el adapted to receive the block to be furnished with bristles, and also
to be inclined to any plane, each of said tables being arranged in a separate
frame between slotted upright arms f³ of the same, and having slotted legs e
containing adjustable slides e carrying pivots e²; said slotted arms f³ containing
slides carried by said pivots e², said arms f³ being supported by an exchangeable
curved rack h supported in its turn by a cog-wheel h¹ (²); each of said frames f
having a central vertical slot f' containing an adjustable slide g¹ carrying a
pivot g; the latter carrying in its turu a slide 92 arranged in a guide 9³; said
tables e el being held within said frames f by bolts * secured to the arms f³, and
by slotted curved exchangeable guide-pieces e' secured to the tables e e'; the latter
being connected by means of universal joints d' d with a rod d adapted to be
displaced longitudinally within a guide b₁ 613; the latter being secured to a rack b
arranged rectangularly to said rod, and gearing with a cog-wheel 68; means for
driving the latter as well as said cog-wheels h¹ h², substantially as described.
Dated this 30th day of November 1894.
By Geo. H. Rayner,
CARL REHSE,
37, Chancery Lane, London, W.C., Agent for the Applicant.