Year: 1895

page_text: Date of Application, 12th, Nove; 1895 Accepted, 14th Dec.,., 1895

page_text: :
It will be seen that by my invention a stamp is produced that will not be
troubled by the vibration which causes so much breakage in stamps of the class
herein referred to, as much of the vibration is absorbed by the cushion D; and as
the parts are connected by dovetail joints and wedges there are no nuts to be
sbaken loose by the vibration, and thus trouble on this point is avoided.
It will also be seen that by the construction above set forth a stamp is provided
that can be readily taken apart and as readily put together again by common
labourers, and can thus be conveniently transported and set up in mountainous
regions where skilled labour cannot readily be found, and to places where it would
be extremely difficult to send complete stamps.
By using angle-irons as part of the frame the machine is made much lighter and
can. therefore be more easily transferred, a point which is of much consequence
when it is considered that much of the mining operations is carried on in places
where it is very difficult to carry heavy machinery.
.
.
The front part of the angle-iron has been divided into two parts, E E', so as to
more readily set the shaft in position, but instead of making it in two pieces as
shown, the front angle-irons may be made integral, as shown iu dotted lines in
Fig. 2, in which case, of course, the bearing, shaft, etc., would necessarily be set
more to the rear, and 1 should consider a front angle-iron made in one piece as an
equivalent of the two-piece front angle-iron.
The rawhide lining of the guides for the stamp stems will not only be found very
efficacious in preventing wear of the stamp stems, but will also be found to be very
durable-lasting a long time without renewal.
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondent and in what manner
the same is to be performed, I declare that what I claim is :
1. In a stamp-mill, and in combination with a suitable base and the connecting
bearing and operating parts, a standard comprising front and rear angle-
irops EEE", a central casting G forming a support for the bearing of the main
shaft, and castings F F adapted to receive the connection between the opposite
standards, substantially as described.
2. In a stamp-mill, a mortar provided with pockets at opposite sides, in com-
bination with a frame comprising a pair of standards rigidly connected together
and having their lower ends loosely fitted in the pockets of the mortar, substantially
as described.
1
3. In a stamp-mill, a mortar provided with pockets at opposite sides, having
cushions set therein, in combination with a frame, comprising a pair of standards
rigidly connected together, and having their lower ends loosely fitted in the pockets
and resting on said cushions, substantially as described.
4. In a stamp-mill, a guide for a stamp-stem lined with two pieces of rawhide,
each pressed half around the stem and having its opposite ends extended between
the guide and the cap, substantially as described.
5. In a stamp-mill, a guide for the stamp-stems thereof, comprising a casting L
having recesses formed therein, fitting and receiving one-half of the circumference
of the stems, T-shaped projections M between said recesses, caps N fitting between
said projections, and provided with lugs n resting on the same, and independent
wedges O for forcing the caps inwards as desired, all constructed and arranged
substantially as shown and described.
6. In a stamp-mill, a guide for the stamp-stems thereof, comprising recesses to
receive one-half of a stamp-stem, caps to receive the other half, sheet packing
encircling the stems and held between the flat portions of the guide and cap, and
means for fastening the caps in place, substantially as described.
7. In a stamp-mill, a guide for the stamp-stems thereof, comprising a casting L
· having recesses formed therein, fitting and receiving one-half of the circumference
of the stems, T-shaped projections M between said recesses, caps N fitting between
said projections, and provided with lugs n resting on the same, independent

page_text: wedges O for forcing the caps inwards as desired, and sheet packing encircling the
stems and held between the Hat portions of the guide and caps, all constructed and
arranged substantially as shown and described.
D 10th day of November 1905
BOULT & WADE,
Agents for the Applicant.