Improvements in Apparatus for Straightening Cylindrical Bars of Iron for Shafting or other like Purposes.
Year: 1892

page_text: Date of Application, 21st Apr., 1892
Complete Specification Left, 7th Dec., 1892-Accepted, 21st Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Straightening Cylindrical Bars of
Iron for Shafting or other like Purposes.
•
WILLIAM COPLEY of 44 Parkinson Lane Halifax in the County of York
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention for purpose aforesaid consists of a carriage or trolly with studs to
fit between the tops of the lathe bed, to guide the carriage the latter is provided
with pulleys or wheels for moving it along the bed, a swivel frame is mounted on a
stud in the trolly, and carries two or more <dies by preference two at the back
and one in the front of bar these dies are mounted in T grooves and free to move
vertically to suit the height of lathe centre or irregularity in the bar, the dies are
brought in contact with the bar by means of right and left hand screw threads, by
preference with buttress thread one set of screws above and the other set of screws
below the centre and connected by gearing so that both sets of screws are operated
simultaneously, the back set of dies being set at a convenient distance apart and
the front set midway between the two so that when the bar is rotated by means of
a slip catch plate, the carriage moved to the full part of bar, the operator moves by
means of handle on axle of pinion which gears into the spur wheels, on axle of
screws thereby pressing the full part of bar and straightening it.
Dated this 18th day of April 1892.
WILLIAM COPLEY.
COMPLETE
SPECIFICATION.
Improvements in Apparatus for Straightening Cylindrical Bars of
Iron for Shafting or other like Purposes.
WILLIAM COPLEY of 44 Parkinson Lane, Halifax in the County of York,
Mechanical 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:-
In order that my invention may be fully understood I hereunto annex one sheet
of drawings in which
Fig. 1 is front elevation Fig. 2 end elevation Fig. 3 plan of bar straightening
apparatus applied to or mounted on a lathe bed drawn to scale. My invention for
purpose aforesaid consists of a carriage or trolly 1 with guide studs to fit between
the tops of the lathe bed 2 to guide the carriage, the latter is provided with pulleys
or wheels 3 for moving it along the bed, a swivel frame 4 is mounted on a stud 5 in
the trolly or carriage 1. Within the sides of the frame 4 is a wrought iron cross bar 6
and adjustable steel dies 7 free to move in the grooves 8 of the cast iron bar 9 the
front bar 6 and the dies 7 are brought to grip the shaft by means of right and left
hand screws 9 10. operated simultaneously by wheels 11. 12 and 13 and cross
handle 14 the dies 7 are free to move vertically in the grooves 8 to suit the shaft to
be straightened or the height of lathe centre.

page_text: 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 bar straightening apparatus constructed as and for the purpose herein fully
described and illustrated.
2. The adjustable dies in combination with the groove 8 bar 9 as and for the
purpose herein described and illustrated.
Dated this 19th day of November 1892.