A NEW AND IMPROVED EMERY OR OTHER GRINDING MACHINE, PARTS OF WHICH ARE ALSO APPLICABLE TO OTHER MACHINERY
Year: 1874

page_text: LETTERS PATENT to Charles Heaton, of New York City, United
States of America, now residing at 22, Craven St., Strand,
London, for the Invention of "A NEW AND IMPROVED EMERY OR OTHER
GRINDING MACHINE, PARTS OF WHICH ARE ALSO APPLICABLE TO OTHER
MACHINERY."
Sealed the 19th June 1874, and dated the 14th January 1874.

page_text: The device for balancing the emery wheel is an adjustable centre,
intended to go within the emery wheel and upon the arbor of the
machine, and is provided with movable points, which enable arbors of
various sizes to be fitted properly; said movable points also enable the
centre of an emery wheel to be so changed or shifted that the emery
wheel, when out of balance upon its arbor can be balanced by changing
the location of its centre.
The device for preventing emery dust or grit from entering the arbor
boxes and cutting the arbor or its bearings consists of an arbor box or
bearing provided with traps or recesses, within which lamp wick or other
yielding material wound round the arbour revolves in such a way that
while excluding dust or grit from the outside, such yielding material
also prevents oil used for lubricating the arbor from getting outside the
arbor box, such oil from the inside and dust or grit from the outside
both finding an exit through a way or duct provided in connection with
the traps or recesses.
The arraingement for bringing the rests used into the position desired
consists of a main casting, bolted to the central casting in such a way
that by means of a clamp it can be raised or lowered and retained in the
position desired. Connected with such main casting are other castings
provided with mortices or slots, which allow of their being moved back-
wards, forwards, raised or lowered, or set at any angle desired.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Heaton in the Great Seal Patent Office on
the 10th July 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
HEATON, of New York City, United States of America, now residing at
22, Craven Street, Strand, London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourteenth day of January, in the
year of our Lord One thousand eight hundred and seventy-four, in the

page_text: thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Charles Heaton, Her special
licence that I, the said Charles Heaton, my executors, administrators,
and assigns, or such others as I, the said Charles Heaton, my executors,
administrators, and assigns, should at any time agree with, and no
others from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "A NEW AND
IMPROVED EMERY OR OTHER GRINDING MACHINES, PARTS OF WHICH ARE ALSO
APPLICABLE TO OTHER MACHINERY," upon the condition (amongst others)
that I, the said Charles Heaton, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Charles Heaton, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Drawing
forming a part of this Specification.
The object of my Invention is to provide a grinding machine with the
following new and useful improvements, that is to say, with a device which
enables the user of the machine to properly hang or attach the wheels to
be revolved, and also when required to so change the location of the
centre of the wheel that though itself "out of truth" it shall balance
and revolve truly on the machine, and with other improvements as here-
in-after specified.

page_text: Figure 3 is a top view or plan of the said machine with rest arms,
and indicates the movement of the same by dotted lines.
Figure 4 is a vertical section of one of the boxes or bearings shewn in
Figures 1, 2, or 3, the same being in section to show clearly my device
for preventing the entrance of emery or dust and the cutting of the
bearing thereby, as well as the manner of conveying surplus oil from the
arbor boxes or bearings of the machine.
Figure 5 is a cross section of my improved centreing device, herein-
after described; Figure 6 is a side view of the same.
Figures 4, 5, and 6 are drawn to an enlarged scale.
Similar letters indicate the same parts throughout the Drawing.
The centreing device H is a metal ring provided with three or more
moveable points or adjusters F, which are so provided with threads that
the turning of the thumb or wheel nuts G causes the said points F to
move in the direction desired. By moving these adjusters it will be
seen arbors or spindles of various sizes can be properly fitted, and by
moving these adjusters irregularly or ununiformly it will also be seen
that the position or location of the centre of the wheel containing such
centreing device may be changed or altered.
The centreing device H in its integrity is placed within the emery
wheel and upon the arbor K of the machine, and when it is adjusted to
the said arbor or balanced upon the same as desired, the wheel is secured
in the ordinary manner by means of flanges L, L, as shown in section in
Figure 1. This centreing device is applicable to all revolving cutters or
grinders, and may be made of metal or other material, and used upon
any kind of grinding machine; and I do not desire to limit myself in its
use or application to any particular purpose or machine.
The device for preventing the entrance of emery dust or grit to the
arbor or its bearings, and the consequent cutting of the latter, and also
for conveying away from the arbor outside of its bearings such oil used
for lubricating as may be of no further use, is constructed as follows:-
K, Figure 4, is the arbor, and M the metal forming the bearing; P, P,
are spaces at the ends of the bearing and within the bearing box; and

page_text: N, N, are ways or ducts for conveying away surplus oil. R is the
lubricator, shewn also in Figure 3.
.
In practise I wind "lamp wick" or other suitable yielding and
absorbent material round the arbor K in such a way that it partly fills
the spaces P, and revolves within them upon and with the said arbor.
All emery dust or grit from the outside is caught and retained by the
yielding material around the arbor and carried around with it, and all oil
from the lubricator R is kept from running along the arbor outside the
yielding material surrounding it, and both oil from the inside and emery
dust or grit from the outside will be found following the only outlet for
either, that is to say, the ways or ducts N, which may lead to any
convenient receptacle.
This improvement is also applicable to various machines, and I do not
limit myself in the application of the same to grinding machines.
A convenient, new, and simple arrangement for bringing the rests
used upon or about grinding machines to the position desired is illus-
trated in Figures 1, 2, and 3. S is a cross bar or piece provided with
slots T. In these slots other pieces U, also provided with slots, are
operated. Upon these pieces U other pieces W are also carried, to which
the rests usually employed with a grinding machine may be attached in
the usual manner.
It will be readily seen that the cross bar or piece S can be raised or
lowered by slackening the bolt X, and that the pieces U may be raised,
lowered, moved backward or forward, or set at any required angle by
slackening the bolts Y, while the "rest arms" W may also be moved
upon the pieces U and by means of their own slots in any direction
required, as indicated by dotted lines in Figure 3.
My improved method of constructing a grinding machine allows
great solidity to be combined with.convenience in handling and use, and
good mechanical construction, as will be made clear by the following
description, and by reference to Figures 1 and 2:-A is.a central casting,
to and upon which both "arbor boxes or bearings are cast solid. B, B,
are side castings, shores, or strutts, so formed, as shown, that while
thoroughly bracing the centre casting. A, they do not take up the space
required upon the floor for the user of the machine to stand on when
.
"

page_text: using it. The shores or strutts B are fastened to the centre casting A
by two or more bolts C, which while holding the grinders together as a
whole, do not have anything to do with the solidity or line of the
arbor in its boxes.
This machine can be readily taken apart to ship or move by removing
the bolts C, when it can be packed in a compact space; and when put
together again such moving or taking apart will be found not to have
in any way disarranged or thrown out of line the two boxes in which the
arbor runs.
Having thus fully described my said Invention and the manner of
performing the same, I wish it understood that I claim,—.
First. Providing a centre or hub for an emery wheel, or grindstone, or
other revolving cutter with three or more movable points, arranged as
shewn, to advance to or recede from the centre either uniformly or inde-
pendently of each other when required, and in such a manner that the:
centre can be shifted and the opening between the movable points
enlarged or contracted for the purpose specified.
Second. Providing the arbor or bearing boxes of a machine provided
with a revolving arbor or spindle with recesses, as herein set forth and
for the purpose specified.
Third. Providing in a machine which has a revolving arbor or spindle
ways or ducts N, for the purpose specified.
Fourth. The casting or part S in combination with the slots T or
equivalent devices when operated by a bolt or other suitable means, for
the purpose specified.
Fifth. The casting or part U combined with a slot or its equivalent,
as herein described, when used to raise, or lower, or alter the position or
angle of the rest of a grinding machine.
Sixth. The combination of the casting or piece S with the bolt X, and
the castings U with bolts Y and slots or the like, as herein described,
when used for this purpose and in the manner specified.
Seventh. The parts A and S with the parts U and W, combined,
arranged, and operating in the manner set forth and for the purpose
specified..
4

page_text: Eighth. The combination of the part A with the parts B, B, and the
olts C, when used for the purpose above specified.
In witness whereof, I, the said Charles Heaton, have hereunto set
my hand and seal, this Ninth day of July, in the year of our
Lord One thousand eight hundred and seventy-four.
Witness,
W. ROBT. LAKE,
8, Southampton Buildings,
London.
CHA³. HEATON. (L.S.)