Improvements in or applicable to Stamp-batteries.
Year: 1892

page_text: Date of Application, 27th Apr., 1892
Complete Specification Left, 2nd July, 1892-Accepted, 6th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Stamp-batteries.
We, THOMAS AYRIS BURROWS, Mechanical Engineer, and HERMAN
MARTIENSSEN, Mining Engineer, both of Johannesburg, in the South African
Republic, do hereby declare the nature of this invention to be as follows:-
This invention appertains to stamp-batteries for crushing gold ore and other
substances, and consists in providing means whereby, without interfering with the
removability of any particular stamp, the stems or stamp-rods are enabled to work
with great freedom.
In carrying out this invention, we construct each bearing or guide for the stems
or stamp-rods in the following manner :-Over the stem or stamp-rod, we slip two
grooved rings; the groove in one ring facing the groove in the other. Between
the two rings, we place a series of anti-friction balls. The balls project beyond
the inner edges of the rings, and are in contact with the stem or stamp-rod. The
rings are furnished with flanges and supported by four pieces of wood or metal
bolted together in the following way :-The two upper pieces are fastened together
by four horizontal bolts, two on each side of the stem or stamp-rod; the two lower
pieces being similarly bolted together: the upper pieces are united to the lower
pieces by four vertical bolts, one near each corner of the block thus built up from
the four pieces of wood or metal. Each ring may be in two or more pieces.
The anti-friction balls enable the stems or rods to work with great freedom.
They can be adjusted to take up wear by simply tightening the nuts on the
vertical bolts. New balls can be readily substituted for worn ones after removing
the vertical bolts. The stem or stamp-rod can be taken out, without interfering
with the other parts of the battery, after the horizontal bolts have been removed.
The rings and anti-friction balls above described may be fitted to the metal
bearings or wooden guide blocks at present in use.
Dated the 27th day of April 1892
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Chartered Patent Agent.
COMPLETE SPECIFICATION.
Improvements in or applicable to Stamp-batteries.
We, THOMAS AYRIS BURROWs, Mechanical Engineer, and HERMAN
MARTIENSSEN, Mining Engineer, both of Johannesburg, in the South African
Republic, 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 appertains to stamp-batteries for crushing gold ore and other
substances, and consists in providing means whereby, without interfering with the
removability of any particular stamp, the stems or stamp-rods are enabled to work
with great freedom.
In the accompanying drawings, which serve to illustrate the way in which we
prefer to carry out our invention,
Fig. 1 is a side elevation,

page_text: ig. 5 a side elevation with the upper part of the ball-race raised to expose the
balls,
Fig. 6 a vertical section through the ball race, the balls and stamp-rod being
removed, and
Fig. 7 a side elevation of half the bearing-block.
"
Fig. 8, drawn to a larger scale, is a transverse section through the rings in
which the ball-race is formed.
Each bearing or guide for the stems or stamp-rods is constructed in the following
manner-Over the stem or stamp-rod A, we slip two grooved rings B and B ;
the groove (Fig. 6) in one ring facing the groove in the other. Between the
two rings, we place a series of anti-friction balls C. The balls-project-beyond
the inner edges of the rings, and are in contact with the stem or stamp-rod A. The
rings are furnished with flanges 12 and 63, and supported by four pieces of wood
or metal D, D1, D2 and D³ bolted together in the following way:-The two
upper pieces D and D' are fastened together by four horizontal bolts E, E', E
and E³, two on each side of the stem or stamp-rod A; the two lower pieces D²
and D³ being similarly bolted together by four bolts E', E, E and E': the upper
pieces are united to the lower pieces by four vertical bolts E8, E', E" and "E",
one near each corner of the block thus built up from the four pieces of wood or
metal D, D, D and D³. Each ring B or B¹ may be in two or more pieces.
The anti-friction balls C enable the stems or rods A to work with great freedom.
They can be adjusted to take up wear by simply tightening the nuts on the vertical
bolts E, E, E and E". New balls can be readily substituted for worn ones
after removing the vertical bolts or their nuts and raising the blocks D and D',
as represented in Fig. 5. The stem or stamp-rod A can be taken out, without
interfering with the other parts of the battery, after the horizontal bolts or their
nuts have been removed.
The rings B and B and anti-friction balls C above described may be fitted to
the metal bearings or wooden guide-blocks at present in use.
Having now particularly described and ascertained the nature of this inven-*
tion and in what manner the same is to be performed, we claim :-
1. In a stamp-battery, the combination, with a series of balls and a ball-race,
of the stem or stamp-rod, substantially as and for the purpose lierein set forth.
2. In a stamp-battery, the combination, with a series of balls C, the two rings B
and B', and the blocks wherein the rings are mounted, of the vertical bolts E³, E³, E10
and E by which the rings can be brought nearer together to compensate for
wear, substantially as herein set forth.
3. In a stamp-battery, the combination, with a series of anti-friction balls C
and the two rings B and B₁, of the supporting blocks D, D1, D2 and D3 and the
bolts whereby the said blocks are fastened together, substantially as and for the
purposes herein set forth.
Dated this 30th day of June 1892.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Chartered Patent Agent.