Improvements in or relating to Power Hammers or the like.
Year: 1899

page_text: Date of Application, 27th Sept., 1899
Complete Specification Left, 27th July, 1900-Accepted, 27th Sept.,
1900
PROVISIONAL SPECIFICATION.
Improvements in or relating to Power Hammers or the like.
We, JOSEPH COOK-NICHOLSON and HENRY CLARK trading as The Jos. C. Nicholson
Tool Co., Machine Tool Makers, of 21, Collingwood Street, in the City and County
of Newcastle-on-Tyne, and THOMAS LUMSDON, Engineer, of 14, Atkinson Terrace,
Wallsend, in the County of Northumberland, do hereby declare the nature of
this invention to be as follows:-
-
This invention relates to power hammers or the like, and has for its object
to render them applicable for operating upon articles-such as stanchions for
bulwark rails-long in proportion to their diameter or transverse size, and having
at one or more points an enlargement or enlargements, the special purpose being
to provide for the completion of, or the formation of the terminal enlargement,
foot or head of, the article.
To this end, we furnish or form at one side, and for all or the greater part of
the height of the anvil a groove or channel of a depth extending past the vertical
centre of same, and of a width suitable for the articles to be operated upon. This
affords space for the article to be brought wholly and centrally below the hammer
head. During the operation, the lower end of the article either rests upon the
bottom of the anvil within the groove or channel, or upon a suitably constituted
false bottom movable within the groove, which bottom may be received or
fulcrumed in holes provided in each side cheek of the groove or channel. This
false bottom may also conveniently serve as a "knock out" for displacing the
article on the completion of the operation.
At the top of the anvil we adapt the groove or channel to receive the shank or
neck of a die made with a central hole and fashioned at the upper face to corre-
spond with the contour of the head, foot or terminal enlargement of the article.
This die is made in sections-appropriately two equal sections--which are held
together in the operative position by a hoop fitted tightly around them, the ex-
teriors of the sections being preferably tapered to ensure the grip of the hoop.
Or the sections may be moved together and held or moved apart by a lever or
system of levers or otherwise suitably. Thus, assuming the article has an inter-
mediate enlargement that will not pass through the hole in the die, the latter
is taken apart thereby permitting the required insertion or removal for or after
the welding on or forging of the terminal enlargement, foot or head.
Articles of the kind mentioned are at present usually made by hand, but by
our invention they can be made by power with the consequential advantages of
cheapness and accuracy.
When there are no intermediate enlargements on the articles, the die need not
be sectional.

page_text: .j
We, JOSEPII COOK-NICHOLSON and HENRY CLARK trading as The Jos. C. Nicholson
Tool Co., Machine Tool Makers, of 21, Collingwood Street, in the City and County
of Newcastle-on-Tyne, and THOMAS LUMSDON, Engineer, of 14, Atkinson Terrace
Wallsend, in the County of Northumberland, 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 power hammers or the like, and has for its object to
render them applicable for operating upon articles-such as stanchions for bul-
wark rails-long in proportion to their diameter or transverse size, and having
at one or more points an enlargement or enlargements, the special purpose being
to provide for the completion of, or the formation of the terminal enlargement,
foot or head of the article.
We will now fully describe the invention in reference to the accompanying
drawings whereof Fig. 1 is a front elevation and Fig. 2 is a side elevation repre-
senting, as an illustration, a steam hammer embodying the improvements, and
representing also, as an example of one of the articles capable of being worked,
a stanchion for a ships' bulwark rail in position for completion by having its
foot welded-on.
The hammer is constructed and arranged as usual with the exceptions that will
presently be self-evident, and it is operated in the ordinary way; and in the
drawings A, B and C designate its anvil, head and cylinder respectively, whilst
D indicates the stanchion, and d, d, its foot, intermediate enlargement and,
terminal enlargement or head respectively.
According to the invention, we furnish or form at one side, and for all, as
shown, or the greater part of the height of the anvil A a groove or channel a
of a depth extending past the vertical centre of same, and of a width suitable
for the articles-I) in the example-to be operated upon. This afforis space
for the article D to be brought wholly and centrally below the hammer head B,
as will be seen on reference to Fig. 2. During the operation, the lower end of
the article either rests upon the bottom of the anvil A within the groove or
channel as illustrated, or upon a suitably constituted false bottom movable within
the groove or channel. This bottom may be in the form of a loose bar received
in the groove a and adapted to be inserted therein and withdrawn therefrom; or
it may be fulcrummed on a pin supported at its opposite ends in holes a pro-
vided in each side cheek a² of the groove or channel a, thus allowing for different
lengths of the article D. This false bottom-especially in the latter arrange-
ment may also conveniently serve as a "knock out "for displacing the article D
on the completion of the operation.
At the top of the anvil A we adapt the groove or channel to receive the shank
or neck e of a die E which is thereby held in position, liut to further ensure
maintenance of position, we prefer, as illustrated, to fix at each side of the anvil A
a bracket a³, having a recess or fork a', and to form or secure at both sides of the
die a projection or pin e¹ to engage in the said forks or recesses. The die is made
with a central hole e² to suit the body of the article D, and fashioned at the upper
face to correspond with the contour of the head, foot or terminal enlargement
of the article. In the example, it is made oblong to agree with the foot d of
the stanchion D. This die is also made in sections-appropriately two equal
sections e, e as illustrated-which are held together in the operative position
by a hoop e fitted tightly around them, the exteriors of the sections e,
being

page_text: Preferably tapered to ensure the grip of the hoop. Or the sections e, may
be moved together and held or moved apart by a lever or system of levers, or
otherwise suitably, as will be obvious. Thus, assuming the article has an inter-
mediate enlargement, such as A, that will not pass through the hole e² in the
die E, the latter is taken apart, thereby permitting the required insertion or
removal for or after the welding on or forging of the terminal enlargement, foot
or head d as in the example.
Of course, when there are no intermediate enlargements, such as , on the
articles, the die E need not be sectional.
As will be obvious, though we have specially described the invention for mak-
ing stanchions, it is equally applicable for making the head or foot enlargements
of other articles having the same or similar characteristics as regards dimensions;
for instance, it is very suitable for making bolts.
Articles of the kind mentioned are at present usually made by hand, but by
our invention they can be made by power with the consequential advantages of
cheapness and accuracy.
Having particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed we declare that what
we claim is:-
1. The improvements in or relating to power hammers and the like for opera-
ting on the articles referred to, consisting in furnishing or forming at one side,
and for all or the greater part of the height, of the anvil a groove or channel
of a depth extending past the vertical centre of same, and of a width suitable
for the articles to be operated upon, whereby space is afforded for the articlo
to be brought wholly and centrally below the hammer head, and adapting the
groove or channel at the top of the anvil to receive the shank or neck of a die
for forming or completing the formation of the terminal enlargement, foot or
head, of the article, substantially as described.
2. In a power hammer or the like, an anvil having a groove or channel at one
side, and extending for all or the greater part of the height, and of a depth ex-
tending past the vertical centre of same, and of a width suitable for the article
to be operated upon; a false bottom movable within the groove or channel;
and a die in sections suitably connected together, the shank or neck of which is
received in the groove or channel, at the top of the anvil, substantially as
described.
3. A power hammer or the like having an anvil with a groove or channel,
such as a, substantially as and for the purposes described.
4. In a power hammer or the like, the combination of an anvil with a groove
or channel, such as a, with a dic, such as E, both arranged substantially as and
for the purposes described.
Doied this 26th day of July 1000