ImprovEMENTS IN WOOD MOULDING MACHINES
Year: 1875

page_text: LETTERS PATENT to Johann Franz Winkler, Cabinet Maker, and
Albert August Zeidler, Sculptor, both of Berlin, Prussia, for the
Invention of “ImprovEMENTS IN WOOD MOULDING MACHINES.”
Invention of
"
· ImprovementS IN WOOD Moulding MachiNES.”
"
PROVISIONAL SPECIFICATION left by the said Johann Franz Winkler
and Albert August Zeidler at the Office of the Commissioners of
Patents, with their Petition, on the 30th April 1875.
WC, JOHANN FRANZ WINKLER, Cabinet Maker, and ALBERT August
ZEIDLER, Sculptor, both of Berlin, Prussia, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN WOOD MOULDING
MACHINES," to be as follows :- '
The existing machines for producing straight continuous mouldings
have heretofore only produced such with congruent profiles. The mould
plane iron rotates without alteration in its position; but if a moulding

page_text: a change in the position of the tool becomes necessary; however, in
tool were in one piece a change of position in its axial direction would
produce no result.
Now according to this Invention we employ several tools, cach for
producing a part or section of the required moulding, and each tool is so
guided that in all the several positions of the axes of rotation the whole
moulding is similar to the initial moulding.
Machines constructed according to this Invention are or may be
constructed as follows:-We mount a wide strap pulley on a counter-
shaft, which receives motion from some revolving shaft. One of the
pulleys transmits motion by shifting strap to one of three pulleys on
the wood moulding machine, the middle pulley being loose and one
outer pulley being fast on the spindle, and by wheel gearing serving to
move the table of the machine in one direction by means of a rack,
while the other outer pulley is loose on the spindle, and on the same boss
as a tooth wheel, which by wheel gearing serves to move the table in
the opposite direction, the table thus remaining stationary when the
strap is on the middle pulley, and moving in one or other direction if
the strap is on either of the outer pulleys. This gearing also serves to
move the tool spindles endwise, as will be presently explained.
The board to be operated on is fastened to the table and the revolving
tools are above it. Weighted india-rubber or other rollers may be
employed for keeping the board perfectly down on to the table. The
aforesaid countershaft has another wide strap pulley, from which motion
is transmitted to the tool spindles, say three in number, and revolving
at a high speed, say about 2,000 revolutions per minute. On the spindle
which carries the tooth wheel for driving the rack on the table we mount
a worm, which gears into a worm wheel quadrant, and the spindle of
this latter thus, according to the motion of the worm spindle in one
direction or the other, receives like motion. The spindle communicates
motion to another spindle, which carries two slotted cams, which by
rods and levers communicate motion in their axial direction to two of
the tool spindles, the third one having no motion in this direction. The
extent of the axial motion is regulated by hand wheel and screw or

page_text: equivalent means, so that the conical shape of the part of the moulding
thereby is altered. For congruent mouldings the mechanism for
producing motion of the tool spindles lengthwise is thrown out of
gear.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Johann Franz Winkler and Albert August Zeidler
in the Great Seal Patent Office on the 30th October 1875.
TO ALL TO WHOM THESE [PRESENTS SHALL COME, wc, JOHANN
FRANZ WINKLER, Cabinet Maker, and ALBERT AUGUST ZEIDLER,
Sculptor, both of Berlin, Prussia, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of April, in the year
of our Lord One thousand eight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and
successors give and grant unto us, the said Johann Franz Winkler
and Albert August Zeidler, Her special licence that we, the said Johann
Franz Winkler and Albert August Zeidler, our executors, administrators,
and assigns, or such others as we, the said Johann Franz Winkler
and Albert August Zeidler, our executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for IMPROVEMENTS IN WOOD MOULDING MACHINES,"
upon the condition (amongst others) that we, the said Johann Franz
Winkler and Albert August Zeidler, our executors or administrators, by
an instrument in writing under our, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
دو

page_text: NOW KNOW YE, that we, the said Johann Franz Winkler and Albert
August Zeidler, do hereby declare the nature of our said Invention, and
in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement, reference being had
to the accompanying Drawings, and to the letters of reference marked
thereon, that is to say :-
The existing machines for producing straight continuous mouldings
have heretofore only produced such with congruent profiles. The mould
plane iron rotates without alteration in its position, but if a moulding is
to be produced, the sections of which are continuously changed, then a
change in the position of the tool becomes necessary; however, if the
tool were in one piece a change of position in its axial direction would
produce no result.
Now according to this Invention we employ several tools, each for
producing a part or section of the required moulding, and each tool is so
guided that in all the several positions of the axes of rotation the whole
moulding is similar to the initial moulding.
And in order that this Invention may be fully understood we will now
proceed to describe the same with reference to the accompanying
Drawings, which represent a machine constructed according to our
Invention.
Fig. 1 is a plan; Fig. 2, a side clevation; Fig. 3, a cross section on line
C, D; and Fig. 4, a longitudinal section on line E, F.
On a countershaft A we mount a wide or cone pulley a, which receives
motion from some revolving shaft. The shaft A also carries the two
wide pulleys a₁ and α. The former a¹ transmits motion by shifting strap
to one of the three pulleys as, a₁, or a on the shaft of the wood
moulding machine. The pulley α, serves to move the board to bc
operated on and also the regulating mechanism for the tool spindles, and
the pulley a, puts the plaining tools in rotary motion.
The middle pulley α, is loose on the shaft b₁. The outer pulley a, is
fast on the shaft, and so is also the spur wheel c₁. The other outer
pulley a, is fixed on the same boss as the spur wheel c¹, which boss is
running loose on the shaft b.

page_text: When the strap is on the pulley a,, as here shown, then the rotation
of the wheel c to the right by means of the wheels c₁ and c₂, which are
fixed on the shaft b₁, will cause the large spur wheel c¹ to turn to the
right also.
The spur wheel and the small pinion C, are on the
spindle by. The pinion c, actuates the wheel c₁, which gears into the
rack e under the table d, moving both to the right and left. The board
to be operated on is fastened on to the table in the usual way, and is
thus brought under the planing tool.
In order to keep the board perfectly down we employ two rollers f
covered with india-rubber, which are held down and thereby pressed on
the board by means of weights h₁, h₂, suspended in bell-crank levers
2. To get the table back, that is from left to right, the strap is
shifted from the pulley a, on to the pulley α.. The tooth wheel c is thus
made to turn, and by means of the wheels C, C, c¹¹¹, and C, the wheel c
obtains a rotary motion to the left. The strap is shifted by means of
the striking gear i, i, the stop k and weight 1 of usual construction.
The wide pulley a₂ on the countershaft A transmits motion by strap
to the pulleys a, a, as, which are made to make about 2,000 revolutions
per minute. They are fastened on the planing tool spindles 4, 12, 13.
The tools are fastened in ordinary manner, but their mode of fastening
is not shown here.
22
The mechanism for setting the tool spindles l₂, l, is driven from the
strap pulleys a, a, by means of tooth wheels. The spindle 6, is fixed in
its position. On the spindle of the great spur wheel c¹ there is a worm
m, which gears into a worm wheel quadrant n and turns it to the right
and left, according as the spindle works one way or the other. This
reciprocating movement is transmitted to the spindle o, which carries
two slotted cams P₁, p, that receive like rotary motion. q', ', are two
small steel rollers working in the slots of the cams and attached to rods
071, 72, which only move in their vertical or axial direction. The rods 2ª¹ª, 7º,
are jointed to the rods 71, 72, and move the levers 71, 72. These again
transmit motion to the rods u₁, u₁, by means of levers t₁, t₁, on the
spindles S1, S2. The rods, ₁, are at their other ends connected to the
levers, t, whereby the spindles s₁₁, s¹, receive like movement as the
5 spindles s₁, S. They are in pairs at the ends of the tool spindles ., ls,
whereby, and by the transmission of the circular motion of the spindles
.
2°

page_text: 13
$1, $₁₁, into the rectilinear movement of the rods v₁, v₁, the tool spindles
are moved in the direction of their axes. The rods v₁,, are so guided
that their axes coincide with those of the tool spindles; they are also in
constant end contact with them. Should, in course of time, the distance
between the rods v₁, v₁, become greater than the length of the spindles,
which at once would show itself: by irregularities in the work, then it is
only necessary to prolong the small rods u, u₁, &c., whereby the rods
V₁₂ would be pushed against the end of the tool spindles. This
prolongation may be obtained by turning sockets wherein the rods ₁,
may be made to fit with right and left hand screw thread.
An important point is the form of the slots in the cams, as otherwise
the rods ₁,, cannot move in the required even manner; otherwise, that
is, by an increasing speed in the movement, the mouldings would become
hollow instead of straight conical mouldings. A different degree of
cone may be obtained by moving the rods v₁, v₁, by means of the hand
wheels w₁.
On turning one of them the eccentricity becomes less or
greater. The right and left-hand socket for adjusting the rod v³ or v²
must of course be turned to suit. The mechanism of conicity is obtained
when the measure of the eccentricity is equal to the amount that the
tool spindles can be made to slide in their bearings. If mouldings with
congruent profiles are to be made it is only necessary to clutch out the
whole of the adjusting mechanism by means of the lever a, the lower
end of which takes hold of a sleeve sliding on a feather on the spindle,
which sleeve forms a friction clutch with the worm m, which is loose on
the spindle. When the sleeve is disconnected the adjusting mechanism
is thrown out of gear and the tool spindles are not shifted endwise.
As compared with hand work the efficiency of this machine would
stand thus: A skilled workman on an average produces 35 meters of
conical moulding in a working day of ten hours, or per hour 3 meters.
This machine, when tended by two men and when working at 2,000
révolutions per minute, will do the following:-
A board 2 meters long passes through in 25
Return stroke
-
seconds.
12 seconds.

page_text: In one day the machine will hence produce 2 ×
10 × 60 × 60
100
= 720
meters of conical moulding, or in other words do the work of
= 20.54, or say 20 skilled workmen.
720
35
In witness whereof, we, the said Johann Franz Winkler and
Albert August Zeidler, have hereunto set our hands and seals,
this Twenty-fifth day of October, in the year of our Lord Onc
thousand eight hundred and seventy-five.
JOHAN FRANZ WINKLER.
(L.S.)
ALBERT AUGUST ZEIDLER. (L.S.)