Year: 1894

page_text: Date of Application, 25th Sept., 1894
Complete Specification Left, 15th June, 1895-Accepted, 27th July 1895

page_text: and 8) or to a band or endless chain m passing over a grooved pulley p (see
Figures 9 and. 10). In the arrangement shown in Figures 7 and 8, the cord /
passes over a grooved pulley 9 attached to any suitable device r for throwing the
machine out of gear. In the arrangement shown in Figure 9, the grooved pulley p
is mounted on a shaft s carrying a cam t which can press against a lever u pivoted
The brake shoe & adapted to the fly wheel y is fixed on this lever u.
at v.
The arrangement shown in Figure 10 is a modification of the preceding one in
which the cam t is replaced by a grooved wheel z, over which a cord w attached to
the lever u, winds itself.
I will now describe the working of my apparatus taking as a specimen the
arrangement shown in Figures 1 and 9.
Supposing that an electric current be caused to pass through the electro
magnet IJ through the wires K L, the arm G of the lever F G is attracted and
descends (the spring M is a weak one and calculated so as not to prevent this
movement) which draws the arm F in the direction of the arrow 15. By this
movement the catch releases the end c of the lever A which being no longer
retained is moved in the direction of the arrow 2 under the action of the weight Q
which bears by means of the catch on the end d and the lever assumes the
position A. In consequence of the inclination of the lever A, the rod O being no
longer held by the catch moves downward in the direction of arrow 3 and
exerts a pull on the endless chain m, the effect of which is to cause shafts and
cam t to revolve and the latter presses the lever and consequently the shoe a
against the fly wheel y. The weight Q may be calculated so as to stop the
machinery instantaneously, by means of the pressure on the fly wheel of the
brake shoe.
When the current is broken, the lever A returns to its former position under
the action of its own weight and its end c again engages under the catch H.
A little bar T prevents the lever A from moving beyond a vertical position. A
stop U mounted on a little spring serves to reduce the shock when the lever falls
back into its initial position.
When it is desired to resume working the rod O is raised by hand in the direction
of the arrow 4, the bevelled surface of h engages under the bevelled surface of the
head d and forces the latter to move a little forward in order to allow it to pass, as
may be seen in Figure 4, but directly the inclined part 5-6 has passed the inclined
part 7-8, the head d under the constant action of the spring N returns backwards
in order to resume the position shown in Figures 1, 2 and 3, the rod O is then held
suspended by the catch resting on the head d Figure 1. In this position the
endless chain m being no longer drawn tight the brake shoe x is no longer held
against the fly wheely and the machine can resume its movement.
In the case of the arrangement shown in Figure 10, the working is similar to that
already hereinbefore described. The rod O in falling causes the wheel p, the
shafts and the wheel z to revolve; the latter pulls the cord to which presses the
brake shoe r against the fly wheel Y.
In the arrangement shown in Figures 7 and 8 the working of the apparatus is
still more simple.
The red O in falling pulls the cord which causes the fork belt shifter to move
in the direction indicated by arrow 9 and shifts the driving belt which was on the
fixed pulley 10 onto the loose pulley 11.
The mode of application of my system of operating brakes or mechanism for
throwing out of gear, is capable of numerous modifications.
The arrangements shown in Figures 7 to 10 are only given as examples, and they
may be modified at will according to the arrangement of the machinery and
requirements.
It may also be observed that the apparatus may be automatic or operated by
band as may be desired.
When it is operated by hand, it may also be arranged to connect the wires K L
by means of a commutator.

page_text: When it is operated automatically any suitable arrangement may be employed
so long as the latter causes the electric current to pass into the coil I J in cases
where it is desired to arrest the movement of the machine when in action.
My system of apparatus for throwing the machinery out of gear, and of electric
brake is applicable to any kind of machine or motor. I employ it with great
success, more particularly for rotary printing machines. In this case I cause the
band of paper which is to be printed to pass between the wires K L and it serves
to intercept the current.
If the band or sheet of paper happen to break, contact is produced and the
machine is at once stopped.
DL:
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Agents for the Applicant.
Improvements in Electrically Actuated Brakes and Belt Shifting
Devices.
I, PAUL AUGUSTE-GODCHAUX of 10 Rue de la Douane, Paris, in the Republic
of France, Editor and Printer, 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 brakes and disengaging gear actuated
electrically. This disengaging which forms one of the characteristic and important
parts of my invention, is extremely simple and, in addition, its action is instantaneous
and very powerful.
My invention is shown in detail on the drawings accompanying the Provisional
Specification, in which
Figure 1 is an elevation of the disengaging apparatus,
Figure 1 shows in detail the brake shown in Figure 9,
Figure 2 is a plan view of the disengaging gear.
Figure 3 is a plan view on a larger scale of the end d of the lever A.
Figure 4 is a view of the head d in perspective.
Figure 5 is a view of the bar O and the catch h in perspective.
Figure 6 shows the bevelled part of the head d and the catch h which correspond
to one another.
Figure shows an arrangement of the apparatus with a simple disengaging
gear. In the position shown in this figure the driving belt is placed on the fixed
pulley.
Figure 8 shows the same arrangement but with the driving belt placed on the
loose pulley.
Figure 9 shows the application of my system of brake under the same conditions
as those shown more in detail in Figure 1*.
Figure 10 shows a similar arrangement to the preceding but in which the brake
shoe is operated by a cord passing over a grooved pulley instead of being operated
by means of a cam.
-
My apparatus is composed of a lever A pivoted on an axis a fixed on a
frame B C D E. A lever F G pivoted at b is fixed on the same frame. Below
one arm G of this lever a little electro magnet I J is arranged, connected to the
wires K and L. Between the two coils I and J a little vertical spring M is
arranged which bears slightly against the end of the arm G of the lever. The
tension of this spring may be regulated at will: The lever F G at the end of its
other arm has a little projection H under which the end c of the lever A may
engage.

page_text: The opposite end of the lever A has a piece d capable of turning on the axis e,
this part is shown on a larger scale in Figures 3 and 4. This head is bevelled as
shown in Figures 4 and 6 and a spring N tends constantly to maintain it in the
position shown in plan in Figure 3. The lever A terminates at the rear of the
movable part d by a fixed part e.
Finally a vertical rod O having a hook P on which a weight Q may be suspended
slides between two guide sockets f and g. The other end of the rod O terminates
in a ring R. This rod has at h a bevelled projection of the form shown in
Figures 5 and 6.
This apparatus which I have just described constitutes the mode of actuating
my system of brake, the working of which I shall hereinafter describe.
The rod may be attached to a cord (this arrangement is shown in
Figures 7 and 8) or to a band or endless chain m passing over a grooved pulley p
(see Figures 9 and 10). In the arrangement shown in Figures 7 and 8 the cord
passes over a grooved pulley 9 and is attached to any suitable device r for throwing
the machine out of gear. In the arrangement shown in Figure 9, the grooved
pulley is replaced by a chain wheel p mounted on a shatt s carrying a cam t
which can press against a lever u pivoted at v. The brake shoe x adapted to the
fly wheel y is fixed on this lever u.
The arrangement shown in Figure 10 is a modification of the preceding one in
which the cam t is replaced by a grooved wheel, over which a cord w attached to
the lever u, winds itself.
I will now deseri e the working of my apparatus taking as a specimen the
arrangement shown in Figures 1 and 9.
Supposing that an electric current be caused to pass through the electro
magnet IJ through the wires K L, the arm G of the lever F G is attracted and
descends (the spring M is a weak one and calculated so as not to prevent this
movement) which draws the arm F in the direction of the arrow 15. By this
movement the catch H releases the end c of the lever A which being no longer
retained is moved in the direction of the arrow 2 under the action of the weight Q
which bears by means of the catch on the end d and the lever assumes the
position A. In consequence of the inclination of the lever A, the rod O being
no longer held by the catch moves downward in the direction of arrow 3 and
exerts a pull on the endless chain m, the effect of which is to
cause shaft s
and cam t to revolve, shifting the belt from the fixed pulley onto the loose pulley, and
the cam presses the lever and consequently the shoe x against the fly wheel
The weight Q may be calculated so as to stop the machinery instantaneously, by
means of the pressure on the fly wheel of the brake shoe.
y.
When the current is broken, the lever A returns to its former position under
the action of its own weight and its end c again engages under the catch H.
A little bar T prevents the lever A from reaching a vertical position in order
that it may always fall back again of itself. A stop U mounted on a little spring
serves to reduce the shock when the lever talls back into its initial position.
When it is desired to resume working, the necessary movement for causing the
belt to pass from the loose pulley to the fixed pulley causes the rod o to rise in the
direction of the arrow 4, the bevelled surface of engages under the bevelled
surface of the head d and forces the latter to move a little forward in order to
allow it to pass, as may be seen in Figure 4, but directly the inclined part 5-6 has
passed the inclined part 7-8, the head d under the constant action of the spring N
returns backwards in order to resume the position shown in Figures 1, 2 and 3, the
rod is then held suspended by the catch h resting on the head d, Figure 1. Io
this position the endless chain m being no longer drawn tight the brake shoe is
no longer held against the fly wheel y and the machine can resume its movement.
In the case of the arrangement shown in Figure 10, the .working is similar to
that already herein before described. The rod. O in falling causes the wheel p, the.
shafts and the wheel z to revolve; the latter pulls the cord w which presses the
brake shoe a against the fly wheel 3.

page_text: In the arrangement shown in Figures 7 and 8 the working of the apparatus is
still more simple.
The rod O in falling pulls the cord which causes the fork belt shifter r to
move in the direction indicated by arrow 9 and shifts the driving belt which was
on the fixed pulley 10 onto the loose pulley 11.
The mode of application of my system of operating brakes or mechanism for
throwing out of gear, is capable of numerous modifications.
The arrangements shown in Figures 7 to 10 are only given as examples, and
they may be modified at will according to the arrangement of the machinery and
requirements.
It may also be observed that the apparatus may be automatic or operated by
hand as may be desired.
When it is operated by hand, it may also be arranged to connect the wires K L
by means of a commutator.
When it is operated automatically any suitable arrangement may be employed
so long as the latter causes the electric current to pass into the coil I J in cases
where it is desired to arrest the movement of the machine when in action.
My system of apparatus for throwing the machinery out of gear, and of electric
brake is applicable to any kind of machine or motor. I employ it with great
success, more particularly for rotary printing machines. In this case I cause the
band of paper which is to be printed to pass between the wires K L and it serves
to intercept the current.
If the band or sheet of paper happen to break, contact is produced and the
machine is at once stopped.
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. A system of electrical brake-actuating and belt shifting devices, comprising
a lever A pivoted on an axis a, an elbow lever G F pivoted on an axis 6 and
having a catch H, an electro-magnet I J and a rod O carrying a catch h, the head
of the lever A being formed by a movable part d, substantially as hereinbefore
described.
2. The combination with the system of electrical brake-actuating and belt-
shifting devices described in the preceding claim, of a brake shoe r by means of an
endless chain m, grooved pulley p, shaft s, cam t and lever u substantially as
described.
2,
3. The combination with the system of electrical brake-actuating and belt-
shifting devices, having a brake shoe actuated by means of an endless chain as
described in the preceding claims, of a grooved pulley p, shaft
cord w
wheel
S,
and lever u substantially as described.
4. The combination with the system of electrical brake-actuating and belt-
shifting devices described in Claim 1, of any suitable disengaging mechanism for
shifting the belt from the fixed to the loose pulley when the rod O descends
substantially as set forth.
Dated this 11th dov of Tuns 1905
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.