Improvements in Machines for Shaping Nuts, Screw and Bolt Heads, and other articles.
Year: 1892

page_text: Date of Application, 23rd Jan., 1892
Complete Specification Left, 16th Sept., 1892-Accepted, 22nd Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Machines for Shaping Nuts, Screw and Bolt
Heads, and other articles.
I, KIRBY BANKS, of 119 Beeston Hill, Leeds, in the County of York, Bolt
and Screw Manufacturer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to construct machines for shaping nuts, screw and
bolt heads, and other articles in such a manner as to be capable of performing as
much work as two ordinary machines, thus reducing the cost in manufacture, and
only necessarily requiring one attendant. A further object is to construct an
appliance which will more firmly hold the nuts in position during the shaping
operation, whilst at the same time they can be more quickly and easily released
than heretofore.
According to my invention, I provide a bed of suitable size mounted on ordinary
framework. Over this hed is arranged a shaft provided with cams or eccentrics,
which latter actuate two tool boxes at either end of the machine, such tool boxes
carrying the cutting tools in the ordinary way.
In front of these two tool boxes and on the bed of the machine are arranged
two horizontal slides, one at each end of said bed; on each of such slides is
mounted a "swivel holder" for carrying the nuts, screw or bolt heads, or other
articles to be shaped, such swivel holders being constructed as described in the
Specification of Patent granted to me dated 9th February 1887, No. 2051.
Ou the above mentioned shaft and between the tool boxes is provided the driving
pulley, so that both tool boxes are operated from one belt.
The required traverse is given to the "swivel holders" by means of an eccentric,
which is mounted on the aforesaid shaft, side by side with the driving pulley.
In order to retain the nuts on the mandrils of the "swivel holders when under
operation, I employ brackets of suitable shape, which are fixed onto the holders
and project outwardly, having a screw passing through the outer end of same, such
screw being provided with a suitable piece on its free end which comes in contact
with the last nut on the mandril, so that by turning said screw the nuts are held.
firmly in position during the shaping operation, and can be easily and quickly
released when required.
Dated this 23rd day of January 1892
BREWER & SON,
33, Chancery Lane, London, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Machines for Shaping Nuts, Screw and Bolt
Heads, and other articles.
I KIRBY BANKS, of 119 Beeston Hill, Leeds, in the County of York, Bolt and
Screw Manufacturer, do hereby declare the nature of this invention, and in what
manuel the same is to be performed, to be particularly described and ascertained
in and by the following statement.:―
The object of my invention is to construct a machine for shaping nuts, screw
and bolt heads, and other articles in such a manner as to be capable of performing
as much work as two ordinary machines, thus reducing the cost in manufacture, and

page_text: only necessarily requiring one attendant. A further object is to construct an
appliance which will more firmly hold the nuts in position during the shaping
operation, whilst at the same time they can be more quickly and easily released
than heretofore.
In order that my invention may be clearly understood and more easily carried
into effect I will proceed to describe same with reference to the accompanying
drawings, in which similar letters refer to like parts in all the figures.
Fig. 1 is a front elevation. Fig. 2 is an end elevation, and Fig. 3 a plan, shewing
machine constructed according to my invention.
According to my invention I provide a bed A of suitable size, such bed A being
mounted upon ordinary framework B. Over this bed A and at a suitable distance
therefrom is arranged a shaft C, such shaft C being carried by its bearings or
brackets D which are fixed onto the foundation or bed A. A cam or eccentric E
is provided at each end of such shaft C, which may be of the ordinary "slotting
machine motion" type as shewn.
These cams or eccentrics E E actuate two horizontal slides F F working in
guides FF situated at either end of the machine. On the front part of each
slide FFI arrange other guides G G in a vertical direction, to which the two
tool boxes H H are attached such tool boxes H H carrying the cutting tools H'H'
in the ordinary way.
In front of these two tool boxes H H, and on the bed A of the machine are
arranged two horizontal guides J J, one at each end of said bed A, and on each
of such guides J J is mounted a "swivel holder" K for carrying the nuts, screw
or bolt heads, or other articles to be shaped, such "swivel holders "K K being
constructed as described in the Specification of Patent granted to me dated
9th February 1887 No. 2051. After the swivel holders K K have been turned
round into position shewn at Fig. 2, the headstock of such holders K K is
retained in a fixed position upon its foundation plate (whilst the cutting or
shaping operation is being performed), by means of an inclined screw arrange-
ment K. By turning the handle K³, the lower part of the inclined screw forces
the upper part of such screw against the underside of the foundation plate,
thereby firmly fixing the headstock; and by moving the handle in the opposite
direction, the headstock is free to be turned round at will. On the above
mentioned shaft C, and between the two tool boxes H H is provided the pulleys
or cone L, so that both tool boxes are operated from one belt.
The required traverse is given to the swivel holders K K by means of an
eccentric M which is mounted on the aforesaid shaft C side by side with the
driving pulleys or cone L. This eccentric M by means of its rod N and lever N¹
actuates the rocking shaft O, giving motion to the levers P P at each end
thereof, such motion being transferred forward to the screws Q Q which carry
the swivel holders K K by connecting rods R R, levers S S, pawls T T and
wheels U U, in the ordinary way.
In order to retain the nuts on the mandrils W of the swivel holders K K when
under operation, I employ brackets X of suitable shape, such brackets X being
fixed onto the holders K K and projecting therefrom having a screw Y passing
through the free end of same. After the nuts Z to be shaped have been placed on
the mandril WI pass the nut W onto the screwed end of said mandril, which
nut W comes in contact with the last nut Z on the mandril, thereby holding such
nuts Z firmly in position during the shaping operation. I make the screwed end
of the mandril W pointed, and hollow out the end of the screw Y, so that on
turning such screw Y the free end of the mandril W is received and thereby held
steady or firmly during the shaping operation; the screw Y being kept in its
position against the mandril W by the lock nut Y'.
By arranging the machine as above described it will be readily seen that the
operation of shaping will be much more easily and quickly performed than by
machines hitherto employed.

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. In machines for shaping nuts, screw and bolt heads, and other articles, the
shaft C carried in bearings D on the bed A, such shaft C being provided with a
cam or eccentric E at each end thereof, substantially as and for the purposes herein
set forth.
2. In machines for shaping nuts, screw and bolt heads, and other articles, the
horizontal slides FF, one at each end of machine, having in combination therewith
the vertical guides G G with their tool boxes H H, substantially as and for the
purposes herein set forth.
3. In machines for shaping nuts, screw and bolt heads, and other articles, the
horizontal guides J J, one at each end of said bed A, for receiving the swivel
holders K K, substantially as and for the purposes herein set forth.
4. In machines for shaping nuts, screw and bolt heads, and other articles, the
pulleys or cone L and eccentric M, situated on the shaft C, substantially as and
for the purposes herein set forth.
5. In machines for shaping nuts, screw and bolt heads and other articles, the
bracket X with its screw Y and lock nut Y, in combination with mandril W
and nut W', substantially as and for the purposes herein set forth.
6. The arrangement, construction and combination of the various parts forming
the machine for shaping nuts, screw and bolt heads, and other articles, substan
tially as herein set forth, and shewn in the accompanying drawings.
Dated this 16th day of September 1899
Brewer & Son,
KIRBY BANKS.
33, Chancery Lane, London, and 30, East Parade, Leeds.