Improvements in Gearing for Converting Continuous into Intermittent Rotary Motion, particularly applicable to Lace Machinery.
Year: 1893

page_text: Date of Application, 27th Apr., 1893
Complete Specification Left, 27th Jan., 1894-Accepted, 3rd Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Gearing for Converting Continuous into Intermittent
Rotary Motion, particularly applicable to Lace Machinery.
1, EDWARD COPE, of New Basford, Nottingham, Manufacturer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to that class of gearing in which there is a continuously
rotating wheel with a partial ring of teeth gearing with a partial ring of teeth on a
pinion having a concave surface to fit the convex plain surface of the wheel so as
to lock the pinion when its teeth are out of gear with those of the wheel.
The object of the invention is to start and stop the pinion gradually so as to
obtain a smooth motion without shocks.
The plain convex portion of the wheel is of less radius than the toothed portion
and the concave surface of the pinion forms the base of a projection of approxi-
mately triangular form whose other two sides are curved. At the junction of each
of these two sides with the pinion at the two ends of the partial ring of teeth there
is a semicircular recess.
At each end of the partial ring of teeth on the wheel there is a cylindrical pin
preferably made renewable as it is subjected to a considerable amount of wear and
beyond these pins there are recesses to receive the ends of the base of the triangular
projection when the pinion is coming into or going out of gear.
The action of the gearing is as follows:-As the wheel rotates the pinion is
driven as long as the toothed portions are in gear. Just as the teeth go out of
gear one of the cylindrical pins enters one of the semicircular recesses in the pinion
and acting as a tooth continues to drive the pinion until the leading edge of the
plain convex portion of the wheel comes against the concave surface of the projec-
tion and continues the rotation at a gradually diminishing speed until it brings the
concave surface concentric with the wheel and thus locks the pinion. The continued
rotation of the wheel in time brings the other cylindrical pin against one of the
curved sides of the projection and riding up it turns the pinion the speed gradually
increasing until the pin reaches the semicircular recess in the pinion and the teeth
come into gear when the pinion is again driven at full speed.
This apparatus is very convenient for alternately rotating two shafts whose
direction of motion is in opposite directions a movement which is required for
operating the points of lace machines. In this case two pinions diametrically
opposite to each other gear with the same wheel.
Dated this 26th day of April 1893.
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Improvements in Gearing for Converting Continuous into Intermittent
Rotary Motion, particularly applicable to Lace Machinery.
I; EDWARD COPE, of New Basford, Nottingham, Manufacturer, 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 that class of gearing in which there is a continuously
rotating wheel with a partial ring of teeth gearing with a partial ring of teeth on a
pinion having a concave surface to fit the convex plain surface of the wheel so as
to lock the pinion when its teeth are out of gear with those of the wheel.
Drive I

page_text: The object of the invention is to start and stop the pinion gradually so as to
obtain a smooth motion without shocks.
The drawing shows a wheel A revolving in the direction of the arrow and gearing
with two pinions B the upper one having just gone out of gear and the lower one
just coming into gear.
The plain convex portion a of the wheel. A is of less radius than the toothed
portion and the concave surface of the pinion B forms the base of a projection 6 of
approximately triangular form whose other two sides are curved. At the junction
of each of these two sides with the pinion at the two ends of the partial ring of
teeth there is a semicircular recess .
At each end of the partial ring of teeth on the wheel A there is a cylindrical
pin à preferably made renewable as it is subjected to a considerable amount of
wear and beyond thèse pins there are recesses a² to receive the ends of the base of.
the triangular projection when the pinion is coming into or going out of gear.
The action of the gearing is as follows:-As the wheel A rotates the pinion B
is driven as long as the toothed portions are in gear. Just as the teeth go out of
gear one of the cylindrical pins a¹ enters one of the semicircular recesses in the
pinion B and acting as a tooth continues to drive the pinion until the leading edge
of the plain convex portion a of the wheel comes against the concave surface of the
projection and continues the rotation at a gradually diminishing speed until it
brings the concave surface concentric with the wheel and thus locks the pinion.
The continued rotation of the wheel in time brings the other cylindrical pin a
against one of the curved sides of the projection and riding up it turns the pinion
the speed gradually increasing until the pin reaches the semicircular recess 6' in
the pinion and the teeth come into gear when the pinion is again driven at full
speed.
This apparatus is very convenient for alternately rotating two shafts whose
direction of motion is in opposite directions a movement which is required for
operating the points and other parts of lace machines. In this case two pinions
diametrically opposite to each other gear with the same wheel as shown in the
drawing.
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. In gearing in which there is a continuously rotating wheel with a partial ring
of teeth gearing with a partial ring of teeth on a pinion, providing a projection on
the wheel and an incline on the pinion for the purpose of gradually starting the
pinion substantially as described.
2. Gearing substantially as described and shown in the drawing.
Dated this 26th day of January 1894.
EDWARD COPE.