Improvements in or relating to Machines for Cutting Files and Rasps.
Year: 1896

page_text: Date of Application, 3rd Mar., 1896
Complete Specification Left, 2nd Dec., 1896-Accepted, 9th Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements in or relating to Machines for Cutting Files
and Rasps.
We, JOHN BLAKEY, of 44 Lady Lane, Leeds, in the County of York, Shoe
Manufacturer, and WILLIAM BACKHOUSE, of | Rothsay Terrace, Holbeck, Leels,
aforesaid, Foreman Mechanic, do hereby declare the nature of this invention to
be as follows:
This invention relates to improvements in machines for cutting files and rasps;
and its object is to afford facilities for bringing the machine more completely under
the control of the operator whereby the force or strength of the cutting blow may
be regulated or adjusted as required for cutting the point or other portion of the
file or rasp without stopping the machine.
According to this invention, when applied say to a machine similar to that
described in the Specification of Letters Patent granted to Richard Denison dated
the First of May 1886, No. 5935, at the back of or a little below say the spring
cylinder of the machine is mounted in suitable bearings (formed on or attached to
the framework of the machine) a shaft arranged at or about a right angle to but
above the travelling bed of the machine. On the above named shaft are mounted
two levers arranged preferably in opposite directions, but not necessarily so. One
of these levers may be mounted on the said shaft over the "header" of the machine,
and connected by a spiral spring (adjustable or otherwise) to the back or other
portion of the said "header." While the other lever inay be mounted on say the
end or other portion of the shaft and connected by an adjustable or other
connecting rod to a hand lever fulcrummed to the bed of the machine or connected
to a treadle. By depressing the hand lever or treadle the operator is enabled to
regulate the force of the cutting blow of the chisel or tool during the cutting
operation and whilst the machine is at work without altering the adjustment of
other parts of the machine.
The above described improvements may be applied to and combined with file and
rasp cutting machines other than those described in the herein before mentioned
specification.
Dated this Second day of March 1896
JOHN BLAKEY,
WILLIAM BACKHOUSE,
By W. Fairburn-Hart.
COMPLETE SPECIFICATION.
Improvements in or relating to Machines for Cutting Files.
and Rasps.
We, JOHN BLAKEY, of 44 Lady Lane, Leeds, in the County of York, Shoe
Manufacturer, and WILLIAM BACKHOUSE, of 1 Rothsay Terrace, Holbeck,
Leeds, aforesaid, Foreman Mechanic, do hereby declare the nature of this
invention and in what manner the saine is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to improvements in machines for cutting files and rasps;
and its object is to afford facilities for bringing the machine more completely under
Price 1

page_text: the control of the operator whereby the force or strength of the cutting blow may
be regulated or adjusted as required for cutting the point or other portion of the
file or rasp without stopping the machine.
In the drawings hereunto annexed the invention is shown applied to a file cutting
machine of the type described and shown in the Specification of British Letters
Patent No. 5935 dated the First day of May A.D. 1886, now the property of the
said John Blakey; but the invention may also be adapted to other makes of file
cutting machines.
Fig. 1 is a side elevation, and Fig. 2 a back elevation of a file cutting machine
of the type named with this invention applied.
Fig. 3 an elevation of a modified way of arresting the motion of hand lever.
A is the bed of the machine; B the standards supporting the spring cylinder C ;
D the driving shaft; E, fast and loose pulleys; the fly wheel; G the spur
wheel, all mounted upon the said driving shaft. The spur wheel G gears with
the wheel on the short shaft I on which the dise J is mounted, and which is
connected by rod K to the disc L mounted upon the ratchet wheel shaft M which
communicates motion to the central screw shaft N, through bevel gearing O for
actuating the sliding carriage P carrying the travelling and tilting bed, hereafter
termed the travelling bed, Q. R is the "header" in which the chisel is mounted
and which is actuated by the cams T mounted upon the driving shaft D.
U is
the hand lever for operating the half nut which connects the sliding carriage P to
the central screw shaft N. The lever U may be retained in a closed position by
fastening lever V pivotally attached to the sliding carriage P.
All the above described parts, and parts not described or shown, are of a similar
construction, and operate in a similar manner to that described in the aforesaid
specification.
At the back of or a little below say the spring cylinder C of the machine is
mounted in suitable bearings 1 (formed on or attached to the framework of the
machine) a shaft 2 arranged at or about a right angle to but above the travelling
bed of the machine. On the above named "shaft 2 are mounted two levers 3 and 4
arranged preferably in opposite directions, but not necessarily so. One of these
levers, namely 4, may be mounted on the said shaft 2 over the "header" R and
adjustably or otherwise connected by a spiral spring 5 to the back or other portion
of the said "header" R. While the other lever 3 may be mounted on say the end
(or other portion) of the shaft 2 and connected by an adjustable or other connecting
rod 6 to a lever 7 mounted on the same spindle 8 as the hand lever 9, or directly
to the hand lever 9 which may be fulcrumined to the bed A or standard B of the
machine as shown, or if desired connected to a trendle.
The length of the connecting rod 6 may he regulated by the thumb nut 11 or
other equivalent device. The linnd lever 9 is provided with a heel or projecting
piece 10 to limit its upward movement. At Fig. 1a heel piece is shown, and at
Fig. 3 a projecting piece 10 is employed for the same purpose. In the one case
and as at Fig. 1 the heel 10 is arranged to come in contact with the bed A, and
at Fig. 3 the projecting piece 10 comes in contact with a portion of the standard B.
By depressing the hand lever 9 (or trendle) the operator is enabled to regulate
the force of the cutting blow of the chisel or tool, as it approaches the end or point
of the article being cut, during the cutting operation and whilst the machine
is at work without in any way otherwise altering the adjustment of other parts of
the machine.
The above described improvements may be applied to and combined with tho
tool carrying device of file and rasp cutting machines other than those described
in the herein before mentioned specification.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
In a file cutting machine, such as herein described the combination with the

page_text: "header" or tool carrying device and its supporting framework and bed, of a
shaft, such as 2 carried in bearings attached to a convenient part of the machine,
said shaft 2 having mounted thereon one or more levers, such as 3 and 4, one of
which levers is connected by a spring such as 5, to the "header" or tool carrier,
while the other lever is adjustably or otherwise connected by a rod, such as 6,
either directly or by means of a lever to a hand lever, such as 9, fulcrummed to
the bed or framework of the machine, as and for the purposes herein before set
forth.
Dated this Twenty-first day of November 1896.
JOHN BLAKEY.
WILLIAM BACKHOUSE.