DISCLAIMER AND MEMORANDUM OF ALTERATION
Year: 1876

page_text: Francis M. Lechner, Francis Bessions,
Columbus, Ohio, in the United States of America), bearing date the 22nd
April 1876, No. 1707.
DISCLAIMER AND MEMORANDUM OF ALTERATION proposed to be
lodged by the said Francis M. Lechner, Francis C. Sessions, and Joseph A.
Jeffrey, assignees of the said Herbert John Haddan, pursuant to the Statutes
in that case made and provided.
WHEREAS Her present Majesty Queen Victoria, by Her Letters Patent
under the Great Seal of Great Britain and Ireland, bearing date the Twenty
second day of April, One thousand eight hundred and seventy-six, in the thirty
ninth year of Her reign, did give and grant unto the said Herbert John Haddan,
his executors, administrators, and assigns, the sole privilege of making, using,
exercising, and vending the said Invention of "IMPROVEMENTS IN MINING
MACHINES," within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, for and during the term of fourteen years thence next
ensuing And whereas the said Letters Patent by Deed of Assignment, dated
Thirteenth October, One thousand eight hundred and seventy six, and registered
the Sixteenth October, One thousand eight hundred and seventy six, were assigned
to the said Francis M. Lechner, Francis C. Sessions, and Joseph A. Jeffrey :
:

page_text: I hereby grant my Fiat, giving leave to the above named Francis Marion Lechner,
Francis C. Sessions, and Joseph Andrew Jeffrey, as assignees of the hereinbefore in
part recited Letters Patent, to file in the. Office of the Commissioners of Patents
for Inventions, with the Specification to which the same relates, the above written 5
Disclaimer and Memorandum of Alteration.
Dated this 7th dow of December 1881

page_text: LETTERS PATENT to Herbert John Haddan, of the Firm of Herbert and
Company, Patent Agents, of 67, Strand, in the City of Westminster, Civil
Engineer, for the Invention of "IMPROVEMENTS IN MINING MACHINES." A
communication from abroad by Francis M. Lechner, Francis C. Sessions, and
Joseph A Jeffrey, all of Columbus, in the United States of America.
Sealed the 30th September 1876, and dated the 22nd April 1876.
PROVISIONAL SPECIFICATION left by the said Herbert John Haddan at
the Office of the Commissioners of Patents on the 22nd April 1876.
HERBERT JOHN HADDAN, of the Firm of Herbert and Company, Patent Agents,
of 67, Strand, in the City of Westminster, Civil Engineer. "IMPROVEMENTS IN
MINING MACHINES." A communication from abroad by Francis M. Lechner, Francis
C. Sessions, and Joseph A. Jeffrey, all of Columbus, in the United States of America.
The improvements consist in the combination of a cutter shaft and adjustable
cutters supported, guided, and worked in a frame sliding on a stationary bed frame
for the purposes of getting coal or other mineral.
The cutter shaft may be of metal or wood, and be supplied with any convenient
number of cutters inserted and fixed thereon, in such manner that they may be
readily removed for repairs and replaced; the sliding frame may be also of metal,
or wood, or of both, and may be actuated on the stationary bed frame by any con-
venient feed mechanism worked by steam or otherwise; the various parts and their
supports should be firmly fixed together, the bed frame may be fastened to the
ground, and may be lifted when required by screw jacks.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Herbert John Haddan in the Great Seal Patent Office on the 2nd
October 1876.
HERBERT JOHN HADDAN, cf the Firm of Herbert and Company, Patent Agents,
of 67, Strand, in the City of Westminster, Civil Engineer. IMPROVEMENTS IN
"

page_text: MINING MACHINES." A communication from abroad by Francis M. Lechner,
Francis C. Sessions, and Joseph A. Jeffrey, all of Columbus, Ohio, in the United
States of America.
The Invention relates to machinery for excavating and getting coal mineral and
such like, and consists in constructing machinery with a cutter shaft with
adjustable teeth in combination with posts for carrying the motive power and an
adjustable sliding frame, and may conveniently be performed, as shown in the
accompanying Sheet of Drawing, in which Fig. 1 is a side elevation of the
machine; Fig. 2 is a top plan view; and Fig. 3, a back elevation.
The frame consists of two sills A, A, with rear cross girt A¹, front cross girts A³;
below the side sills B3, B³, are posts, to which are fastened the engine cylinders and
the various parts of the engine, the lower part being hollow and securely fastened
to moveable frame B, B; the upper end of B² has suitable boxes, in which revolves
the engine shaft S. T is an auxiliary shaft, and receives its motion from engine
shaft S by means of gearing D, D. On auxiliary shaft T is placed the gearing
which actuates nut N2 through short shaft N', which revolves on screw N, whereby
frame B, B, which is furnished with cutter bar C running in bearings C², C², on its
outer end is propelled into the material to be mined. The forward and backward
motion is produced by clutch movement between mitered and bevelled gearing F
and G on the shaft T. The rotary motion is given to the cutter bar C by the
chains E. a, a, are arms or cranks on auxiliary shaft T, and connected to levers
g, g, by means of connections b, b. When the cranks a, a, are revolved the levers
g, g, are oscillated backwards and forwards on the pivot f. The lower ends of the
levers g, g, are connected to rods d, d, on which the scrapers e, e, e, etc., are
suspended. When moved forwards the scrapers collapse, and on the return motion
the scrapers drop and the debris is thereby removed from the neighbourhood of the
cutter head C, preventing clogging.
The engine shown is the common slide valve engine and needs no explanation,
and it can be applied variously, either vertically, horizontally, or at any angle to
suit different mines; or other motor may be used to drive the machinery.
We also in some cases attach drills or cutters on uprights, though not shown in
the Drawing.
We claim,―
1. In a mining machine, the cutter shaft C in combination with adjustable
teeth c², substantially as shown.
2. The combination with the shaft C and teeth c¹, of the supporting shoes C°
provided with a projecting spur or otherwise.
3. The combination with the posts B2, B2, of the adjustable sliding frame B, B,
with its adjusting machinery, substantially as shown.
4. The combination with the stationary frame and sliding frame carrying the
cutter shaft and its driving mechanism of the screw shaft N, substantially as
shown.
5. The combination with the feeding screw shaft N having one end mounted in
the adjustable frame B, of the slotted standard O, substantially as shown.
C. The combination with the feeding screw shaft N of the bearing having a
throat N²
7. The combination of the cutter shaft C and driving chains E², together with
the cutting teeth, substantially as shown.
8. The combination of the oscillating bars d, d, and the suspended hinged
reciprocating scrapers e, e, c, etc., substantially as shown.
9. The combination of the above machinery or any part thereof with ordinary
drills.
We would remark that the various parts may be of metal or of metal and
wood combined, and may be modified as regards their proportions and arrangement

page_text: without departing from the nature of our Invention, as above set forth, in con-
junction with the Sheet of Drawing hereunto attached.
In witness whereof, I, the said Herbert John Haddan, have hereunto set my
hand and seal, this Twenty-fourth day of August, in the year of our Lord,
One thousand eight hundred and seventy-six.
HERBERT JOHN HADDAN. (L.S.)