Improvements in Steam and other Elastic Fluid and Power Hammers.
Year: 1890

page_text: Date of Application, 27th June, 1890
Complete Specification Left, 18th Mar., 1891-Accepted, 18th Apr.,
1891.
PROVISIONAL SPECIFICATION.
Improvements in Steam and other Elastic Fluid and Power
Hammers.
İ, JOHN HAMBLETON BOOTH, of the L.Y.C. and D. Horse Shoe Works,
Gorton Lane, Manchester, in the County of Lancaster, Engineer, do hereby
declare the nature of this invention to be as follows:-
My invention relates principally to steam hammers and has for its object to
obtain increased steadiness of movement and precision of stroke of the hammer
head and hammer and to lessen the loss of useful effect and the waste of steam
arising from condensation in the cylinder. For some purposes it is of importance
that the hammer head shall be accurately guided in its up and down movements so
that it shall slide in its guides with a minimum of shake or lateral freedom. To
this end I employ "vee" guides and I adjust such guides by means of setting-up
strips which are formed with inclined or wedging faces which bear against corre-
sponding faces upon the said vee guides the hammer head being formed or provided
with planed and faced projecting strips which have inclined faces to suit the vee
guides. The setting up strips are adapted to be drawn by means of adjusting bolts
into spaces between the vee guides and fixed abutments and when so drawn in act
upon the vee guides to move one guide nearer to the other. The inclined face upon
each setting-up strip may be upon the edge which meets the guide strip or upon
the edge which bears against the abutment or upon both. When any one of the
vee guides has been adjusted it can be securely held in its adjusted position by
tightening bolts which hold the guide in position upon the standard.
properly adjusted the vee guides do not permit of lateral movement of the hammer
head in any direction. I provide the steam cylinder with a steam jacket which
communicates with recesses in the end covers of the valve chamber. When the
steam valve is moved into position to admit steam to either end of the cylinder
the end of the valve cuts off communication with the recess in the cover so that the
live steam is prevented from passing into the jacket but when the valve closes to shut
off the live steam the passage from the cylinder to the said recess is opened so that
the exhaust steam is free to pass into the said recess and through passages into the
steam jacket. The exhaust steam flows through the annular space between the
cylinder and its jacket and escapes through an exhaust pipe. The cylinder being
thus enveloped in steam is kept hot so that there is less condensation of steam and,
less delay is caused by accumulations of water in the cylinder.
When
I may provide means for admitting a small supply of live steam to the inside of
the jacket in cases wherein the hammer has to stand for long intervals of time.
The means for guiding the hammer head are applicable to hammers having
sliding heads actuated by compressed air or by explosive gases or by power.
Dated this 26th day of June 1890.
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.
COMPLETE SPECIFICATION.
Improvements in Steam and other Elastic Fluid and Power
Hammers.
I, JOHN HAMBLETON BOOTH, of the L.Y.C. and D. Horse Shoe Works,
Gorton Lane, Manchester, in the County of Lancaster, Engineer, do hereby
leclare the nature of this invention, and in what manner the same is to be
037

page_text: performed, to be particularly described and ascertained in and by the following
statement and accompanying drawings :-
:-
My invention relates principally to steam hammers and has for its object to
obtain increased steadiness of movement and precision of stroke of the hammer
head and hammer and to lessen the loss of useful effect and the waste of steam
arising from condensation in the cylinder. For some purposes it is of importance
that the hammer head shall be accurately guided in its up and down movements so
that it shall slide in its guides with a minimum of shake or lateral freedom. To
this end I employ "vee" guides and I adjust such guides by means of setting-up
strips which are formed with. inclined or wedging faces which bear against corre-
sponding faces upon the said vee guides the hammer head being formed or provided
with planed and faced projecting ribs which have inclined faces to suit the vee
guides. I provide the steam cylinder with a steam jacket which communicates
with recesses in the end covers of the valve chamber. When the steam valve is
moved into position to admit steam to either end of the cylinder the end of the valve
cuts off communication with the recess in the cover so that the "live" steam is
prevented from passing into the jacket but when the valve closes to shut off the live
steam the passage from the cylindler to the said recess is opened so that the exhaust
steam is free to pass into the said recess and through passages into the steam jacket.
In order that my invention may be clearly understood I will describe the same
more fully with reference to the accompanying drawings.
In the drawings
Fig. 1 represents a vertical section of the upper part of a steam hammer con-
structed in accordance with my invention.
Fig. 2 is a plan view of the steam cylinder without the top cover.
Fig. 3 represents a horizontal section of the framing and hammer head the left
hand half of the section being taken on the line A in Fig. 1 and the right hand
half on the line B.
66
.
In Fig. 3 a is the hammer head bb are the "vee guides" and ce are the
setting-up" strips. The parts b and c also appear in Fig. 1. Upon each side of
the hammer head is formed a projecting rib a¹ and each of the two sides of each
rib is planed and finished to make an angle with a centre line which would pass
through the said ribs. The vee guides are carefully planed and finished to have on
one side a face of an angle corresponding to that of the face or faces upon the
rib a¹ and upon the other side a face 6 of less angular inclination. It will be seen
that the lines of the two inclined faces on each vee guide would meet if prolonged.
When the vee guides are in position the setting-up strips fit into spaces between the
vee guides and the planed sides of abutment ribs d which project from the inner
side of the standard D the two standards constituting the main frame of the
machine as is usual in this class of steam hammer. A planed face is formed upon
the inner side of each standard D to receive the vee guides and setting-up strips
the face on one standard being parallel with the face upon the other standard.
The vee guides when adjusted are firmly secured to the standards by means of
bolts e.
The strips can also be drawn toward the standard by means of adjusting
bolts but the said strips are so proportioned as that they will not quite reach the
said planed face to which the vee guides are secured. When it is desirable to set
up any one of the guides b the bolts e are slightly slackened and the bolts f of the
setting-up strip for the guide which is to be adjusted are tightened to the required
extent and the bolts e are then tightened. It will be seen that the strips c being
tightly jammed against the fixed rib or shoulder d constitute unyielding abutments
for the vee guides.
When properly adjusted the vee guides do not permit of lateral movement of the
hammer head in any direction.
The inclined face b¹ might be upon the side of the strip which bears against the
abutment rib d the face upon the latter being correspondingly inclined or if con-
sidered to be desirable an inclined face might be formed upon each side of the

page_text: "
setting-up strip. In Figs. 1 and 2 G is the steam cylinder and h is the valve
chamber which has a cylindrical bore. The cylinder is provided with a jacket g
which extends around the valve chamber, and between the cylinder and valve
chamber and the jacket is a steam space which opens upward and downward into
recesses on the top and bottom covers g¹ by means of passages i¹. The ends of
the valve chamber also communicate with the recesses in the covers but there is no
connection between the interior of the cylinder and such recesses excepting through
the steam ports k. The valve in Fig. 1 is drawn in the position as when "live
steam is passing into the space below the piston the valve head then shutting off
communication with the steam space in the jacket. The upper valve head lis
drawn below the port k and the exhaust steam is permitted to flow into the steam
The cylinder being thus
space within the jacket toward the exhaust pipe m.
enveloped in steam is kept hot and there is less condensation of steam within the
cylinder and less delay is caused by the accumulation of water in the cylinder. A
steam pipe n communicates with the space inside the jacket and also with the live
steam pipe o a valve p shutting off the connection during the working of the
hammer.
When the hammer is at rest for long intervals of time the said valve can be
opened so as to admit a suitable quantity of steam to the interior of the jacket to
keep the cylinder hot, the water of condensation being carried off by the pipe r.
The pipe n may be dispensed with if not considered to be necessary and if preferred
the exhaust steam might flow into the space within the jacket through the passages i
alone.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The construction and combination of parts constituting a portion of a steam
hammer as set forth and indicated.
2. The combination of parts for guiding the hammer head and for effecting the
adjustment of the guides substantially as set forth with reference to Figs. 1 and 3.
of the drawings hereto.
3. The vee guides b fitting against vec faces on the hammer head in combination
with the strips c adapted when drawn toward the standards D by means of bolts f
to set-up the guides b toward the said vee faces by re-action against abutments d
substantially as set forth and indicated.
4. The steam cylinder of the steam hammer with its valve chamber valve and
jacket so constructed as that the exhaust steam is directed through the space within
such jacket to the exhaust pipe substantially as set forth and indicated.
Dated this 17th day of March 1801
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.