IMPROVEMENTS IN APPARATUS IN CONNECTION WITH SPRING POWER FOR DRIVING MACHINERY
Year: 1884

page_text: We EDWARD MARSHALL and GEORGE PHILLIPS both of Birmingham in the
county of Warwick Machinists do hereby declare the nature of our invention for
"IMPROVEMENTS IN APPARATUS IN CONNECTION WITH SPRING POWER FOR DRIVING
MACHINERY," to be as follows:-
The object of our invention is to simplify the arrangement of parts and to secure
durability and strength in the apparatus for driving machinery, and consists of
a spur toothed wheel suitably connected to the main spring arrangement or power
and also connected by means of a pawl and spur pinion to an angular toothed
wheel the said angular toothed wheel gearing into and giving motion to a tangent
worm or thread as required.
The spindle or shaft of the said tangent worm or thread is suitably supported by
a bracket or frame in the most convenient manner; and upon the spindle of the
said worm or thread is applied the power communicator to which the instrument or
machine requiring motion to be imparted is connected.
In order to prevent the overwinding of the apparatus, as well as to stop the
working when the spring power is nearly exhausted in order to keep the parts in
connection, the said pinion is so constructed as to form the winding shaft and
pinion the said shaft being squared at it's end or ends to which we apply a suitable
wheel or handle for winding up the required parts and out of a suitable part of the
said shaft or pinion we form a projecting piece or tooth which said tooth when
revolving either for the purpose of winding up or running down in the working of
the machine imparts motion to a traversing toothed wheel which said traversing
toothed wheel will be brought into contact by means of projecting pins or stops
with a stop suitably timed and arranged on the said shaft and when so brought into
contact prevents overwinding or the disconnecting of parts, when exhausting the
power of the springs when the instrument or machinery is in operation.

page_text: COMPLETE SPEOLE ICATION.
We EDWARD MARSHALL and GEORGE PHILLIPS both of Birmingham in the
County of Warwick Machinists do hereby declare the nature of our invention for
"IMPROVEMENTS IN APPARATUS IN CONNECTION WITH SPRING POWER FOR DRIVING
MACHINERY and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
"
The object of our invention is to simplify, the arrangement of parts and to secure
durability and strength in the apparatus for driving machinery and consists of
a'spur toothed wheel suitably connected to the main spring arrangement or power
and also connected by means of a pawl and spur pinion to an angular toothed
wheel, the said, angular toothed wheel gearing into and giving motion to a tangent
worm or thread as required.
41
.
The spindle or shaft of the said tangent worm or thread is suitably supported by
a bracket or frame in the most convenient manner, and upon the spindle of the
said worin or thread is applied the power communicator to which the instrument or
'machine requiring motion to be imparted is connected.
In order to prevent over winding of the apparatus, as well as to stop the
-working when the spring-power is nearly exhausted so as to keep the parts in
connection the said pinion is so constructed as to form the winding shaft and
pinion, the said shaft being squared at its end to which we apply a suitable wheel
or handle for winding up the required parts, and out of a suitable part of the said
“shaft or pinion we form a projecting piece or tooth, which said tooth when revolving
either for the purpose of winding up or running down in the working of the
machine, imparts motion to a traversing toothed wheel, which said traversing
toothed wheel will be brought into contact by means of projecting pins or stops,
-with a stop suitably timed and arranged on the said shaft, and when so brought
into contact prevents overwinding, or the disconnecting of parts when exhausting
the power of the springs while the machinery or instrument is in operation.
But as our invention will be best understood by referring to the drawings
hereunto annexed we will describe the same by aid of the figures and letters
"marked thereon.
Figure 1. represents a plan or top view of our improved apparatus for driving
'machinery A. A. A. are three flat coiled springs but any convenient number may
*be used as required-These springs are mounted on the main shaft B. B. partly
shewn.in dotted lines and connected to the said shaft by means of suitable arbors,
one of which with one of the springs attached and broken away for convenience we
have shown detached at Figure 2. The inner ends of the said springs are connected
to the arbors as seen at figure 2 by means of the stud a. and slot in the spring and
the arbors having square holes in their centres of the same shape and size as the
main shaft B permite the spring to be placed in position on the shaft or axis as
shown, the outer ends of the said springs being connected to the pillars C. C. by
means of suitable clips D. D. D.
The said springs are held sideways by suitable frame work E. E, E E. The
spring power is imparted from the springs A. A. A. to the fusee F. and spur wheel I.

page_text: by means of the chain G. on the drum H. which drum is supported on the
main shaft B. carrying the springs A. A. A. the one end of the chain G. being firmly
Becured to the fusee F. at b.-and the other end of the chain to the drum H at c.-
The spur wheel I is geared into the pinion J. formed with or on the winding
spindle K., the pinion J. being connected to the tangent wheel L (which works
freely on the winding spindle) by means of the pawls M M. shewn in detached face
view with the tangent wheel L. at Figure 3-This tangent wheel L. gears into and
gives motion to the tangent worm or thread N. shown best in an end view of the
apparatus at Figure 4-The spindle of the tangent worm or thread N. is extended
at O. and forms the means for connecting and giving motion to the machinery
desired to be driven-Referring again to figure 1. we form a suitable tooth or
projection on the winding spindle K. at P, which projection actuates a traversing
stop Q, forming the preventive for over winding, and for stopping the working of
the apparatus when the spring power is nearly exhausted as now shown when the
projection R. on the traversing stop comes in contact with the projection S. attached
to the winding spindle K.
Assuming that a handle wheel or other convenient means of winding, has been
placed on the winding spindle K. for the purpose of winding up the springs A. A. A.—
the spindle K. is turned in the direction of the arrow which will wind the chain on
to the fusee F. from the drum H. and at each revolution the projecting tooth P. on
the spindle K. gears into the traversing stop Q. (which works on the threaded stud)
and imparts a traversing motion to it, and being properly timed when there is
sufficient spring power accumulated to drive the machinery the stud T comes in.
contact with the projection S. on the spindle K. thereby preventing overwinding-
To avoid confusion we have represented the spring in Figure 4. simply by the
circular dotted lines A. A.
From this description it will be seen that our improved apparatus is much more
simple in construction than those hitherto produced and as we dispense with many
parts and consequent complication liable to wear and deterioration greater durability
is obtained with less noise.
Having now described our invention and the manner of carrying the same into
effect we wish it understood we do not purpose confining ourselves to the exact
details herein described and exhibited, but what we claim and seek protection by
Letters patent is
The general combination of parts forming the apparatus in connection with
spring power for driving machinery as herein described and exhibited.
In witness whereof we the said Edward Marshall and George Phillips have
hereunto set our hands the 23rd day of June one thousand eight hundred
and eighty five
EDWARD MARSHALL.
GEORGE PHILLIPS.
G. F. Redfern,
Agent for the Applicants,
, South Street, Finsbury, London.