IMPROVEMENTS IN STEAM-RAMMING MACHINES FOR USE IN LAYING PAVE- MENTS, AND FOR SIMILAR PURPOSES
Year: 1879

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for the Invention of
"IMPROVEMENTS IN STEAM-RAMMING MACHINES FOR USE IN LAYING PAVE-
MENTS, AND FOR SIMILAR PURPOSES." A communication from abroad by
Samuel Johnson, of Philadelphia, Pennsylvania, United States of America.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 8th November 1879.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN STEAM-RAMMING MACHINES
FOR USE IN LAYING PAVEMENTS, AND FOR SIMILAR PURPOSES." [A communication
from abroad by Samuel Johnson, of Philadelphia, Pennsylvania, United States of
America.]
This Invention relates to a machine provided with a rammer operated by means
of a steam cylinder placed at the end of a crane, mounted and swinging upon a
carriage which supports a boiler and furnace, the said carriage being either wholly
or partially impelled by steam, or driven or drawn in any convenient manner.
I provide the arm of the said crane with a hinge or joint to allow the rammer to
move around the end of the crane in a circle, of which the outer arm is the
radius, thus securing an almost unlimited command over the position of the said
rammer.
A jointed steam-pipe conducts steam from the boiler to the valve-chest of a
cylinder. The said valve chest encloses a suitable valve to control the operation
of the steam upon a piston attached to the piston rod, the lower end of which
carries the rammer. The steam valve may be operated by any suitable mechanism
such as is usually employed in steam-hammers, so that the force of each blow may
be perfectly controlled by the hand of the operator.
The aforesaid cylinder is attached to the outer end of the said crane by means of
arms, and a rod which passes through them and the ends of the crane-arms to form
a hinge joint. The said crane swings horizontally on a post supported on the
frame of the carriage and by a braco.
The machine thus constructed is intended for use in laying street pavements and
for similar work.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Robert Lake in the Great Seal Patent Office on the
6th May 1880.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN STEAM RAMMING-MACHINES
FOR USE IN LAYING PAVEMENTS, AND FOR SIMILAR PURPOSES." A communication
from abroad by Samuel Johnson, of Philadelphia, Pennsylvania, United States of
America.
This Invention relates to a machine provided with a rammer or ramming stamp
operated by means of a steam-cylinder placed at the end of a crane, mounted and
swinging upon a carriage which supports a boiler and furnace, the said carriage being
either wholly or partially impelled by stean, or driven or drawn in any convenient
manner. The arm of the said crane is provided with a hinge or joint to allow the
rammer to move around the end of the crane in a circle, of which the outer arm is
the radius, thus securing an almost unlimited command over the position of the
said rammer.
The said Invention is illustrated in the accompanying Drawing in which,-
Figure 1 is a side elevation of my improved ramining machine, the new parts
thereof being represented by full lines and the other parts by dotted lines.
Figure 2 is a plan illustrating the construction of the compound arm of the
crane.
Like letters indicate the same parts in both of the Figures.
A represents the frame of the carriage supporting the boiler B and its furnace;
S, S', S, S³, represent jointed steam-pipes which conduct steam from the said
boiler to the valve chest E of the steam cylinder C. The said valve chest encloses
a suitable valve to control the operation of the steam upon a piston attached to
the piston-rud F, the lower end of which carries the rammer R. The steam-valve
may be operated by any suitable mechanism such as is usually employed in steam-
hammers, so that the force of each blow may be perfectly controlled by the hand
of the operator.
The cylinder C is attached to the outer end of the crane D by means of arms
J, J, and the rod P¹ which passes through them and the ends of the crane-arms to
form a hinge or joint, as shown. The crane D swings horizontally on a post P
supported on the frame A of the carriage and by the brace G.
The machine thus constructed is intended for use in laying street-pavements and
for similar work.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent and the manner of performing the same, I wish it understood
that I claim,
First. In a steam-ramming machine the combination with a suitable carriage 4
supporting a boiler and furnace, of the crane, the jointed steam-pipes, the steam-
cylinder, and the rammer or ramming stamp, all constructed and operating sub-
stantially as above set forth and for the purpose specified.
Second. The combination of the steam-cylinder with the swinging crane by
means of the arms J, J, and the rod or post formning a hinge or joint, substantially
as above set forth and for the purpose specified.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Sixth day of May, in the year of our Lord One thousand
night hundred and sight