Improves of coupling Devices.
Year: 1898

page_text: Date of Application, 15th Feb., 1898-Accepted, 9th Apr., 1898
Improves of coupling Devices.
I, EDUARD BRESLAUER, of 7, Goethestrasse, Leipzig, in the 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 relates to means for connecting a rotating body with another at
rest, said 'means consisting of a number of loose parts concentric with the axis of
rotation and so arranged between the two bodies to be connected that their rotation
within the connecting parts is prevented by a clutch device whenever motion is
to be imparted from the rotating body to the one at rest.
Figures 1 to 4 of the accompanying drawings shew such an arrangement in which
parts W and W are coupled or connected by means of a ball bearing device.
Figures 5 and 6 shew a coupling for a pulley R and a shaft W by means of a
roller bearing device.
Figures 7 and 8 illustrate a special arrangement of the clutch or clamping
device when a ball bearing is used.
Figures 9 and 10 shew a coupling in which a ring of prismatic bodies is arranged
between the two parts to be coupled.
In Figures 1, 2 3 and 4, A and B are the halves of the coupling keyed or other-
wise secured upon shafts W' and W. In an annular space between them steel
or other suitable balls K are so arranged as to form a concentric bearing between the
parts to be coupled. A special clutching device allows the balls K to be fixed in
their position. This clutching device consists for instance of a ring R and a
sleeve which latter is embraced and controlled by a forked lever of ordinary
construction. As shewn in Figures 1 and 2 this ring is kept pressing against
balls K by a spring F while the sleeve C is held in its position by the forked lever.
In Figure 3 ring R and sleeve C are connected together by screws S. When the
sleeve C is shifted inward of the half A the balls K move forward inside the
coupling, so that the balls follow the movement of the sleeve C.
Both halves of the sleeve are provided on their peripheries with concentrical
projections N N corresponding with each other. When the balls K are pushed
towards these and ultimately reach them they form the coupling device between the
part in motion and that at rest. It is obvious that a slight reduction in or contrac-
tion of the path of the balls is sufficient to wedge in the balls and thereby effect
the connection between the two parts to be coupled. The releasing of the coupling
is effected by means of sleeve C which is drawn back by means of the forked lever
thereby restoring the ball bearing to its original position.
Figures 5 and 6 shew the application of a roller bearing to the same purpose.
Instead of the rollers being shifted coupling parts N1 N2 which may be attached to
the sleeve C are forced on to the tapered ends of the rollers whereby the motion
is communicated from one part to the other. Any number of projections N1 N2
may be fixed to the sleeve or two sleeves arranged so as to act on both ends of the
rollers

page_text: Figures 7 and 8 represent a clutch in which the sliding part B is provided
on its periphery with longitudinal recesses containing balls. The fixed part A is
provided with recesses in which the balls lodge themselves when the part B is slid
towards the fixed part A, as shewn in the lower half of the figures. No special
locking device is required in this case, as each half of the coupling acts as such.
Figures 9 and 10 shew another form of the invention in which the connecting
means consist of a number of prismatic bodies located between the fixed part A of
the clutch and the sliding one B. The latter is provided on its front end with ribs so
arranged that when they are pushed into the spaces between the prismatic bodies,
these are forced further apart and pressed against the inner surface of A.
To facilitate their insertion between the prismatic bodies the ribs are thinned
or tapered or rounded at their front extremity.
While Figures 1 to 8 shew a form of the invention which acts as a clamping device
or as a clutch with movable jaws, Figures 9 and 10 represent another form in
which it has developed into a friction clutch.
This latter form in which the coupling means consist of a number of prismatic
bodies may however be constructed on the same lines as the former, that is, the
longitudinal parts may be arranged so as to come in contact with projections pro-
vided on the coupling halves.
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 clutch in which the connecting part consists of a ball bearing, the balls of
which are wedged in against projections provided on both halves of the clutch.
2. A clutch in which the connecting parts consist of a roller bearing, the rollers
of which are wedged in against projections provided on both halves of the clutch.
3. A clutch in which the connecting part consists of prismatic bodies which are
wedged in the spaces between ribs or projections provided on both halves of the
cluten.
4. A clutch in which the connecting part consists of prismatic bodies which when
the clutch is operated are separated by projections in the one half of the clutch and
forced against the inner periphery of the other half so as to cause the clutch to act
by virtue of the friction caused thereby.
5. In a clutch or coupling device the combination with the halves A B keyed or
secured to shafts WW2 and furnished with projections N, of a longitudinally
movable sleeve C furnished with balls K arranged to clamp the halves together,
substantially as described.
6. In a clutch or coupling device the combination with the halves A B provided
with projections, the inner half B being formed in one piece, or being provided
with a sleeve C, which is movable concentrically within the other half A, and of
balls, rollers or prismatic bodies K, substantially as and for the purposes described
and illustrated upon the accompanying drawings.
7. In a clutch or coupling device the combination with a sleeve A secured to a
shaft W, of rollers and of a longitudinally movable sleeve C furnished with
projections N¹ N2, substantially as and for the purposes described, with reference
to Figures 5 and 6 of accompanying drawings.
Dated this 15th day of February 1898
Dated this 15th day of February 1898.
For the Applicant,
GEDGE & FEENY,
60, Queen Victoria Street, London, Chartered Patent Agents.