IMPROVEMENTS IN HANDLES OR HOLDERS FOR DENTAL AND OTHER SMALL TOOLS OR INSTRUMENTS
Year: 1879

page_text: LETTERS PATENT to William Phillips Thompson, of the Firm of W. P.
Thompson & Co., of 323, High Holborn, in the County of Middlesex, and of 6,
Lord Street, Liverpool, in the County of Lancaster, Patent Agents and
Consulting Engineers, for the Invention of "IMPROVEMENTS IN HANDLES OR
HOLDERS FOR DENTAL AND OTHER SMALL TOOLS OR INSTRUMENTS." A
communication from abroad by Henry D. Justi, of Philadelphia, United
States.
PROVISIONAL SPECIFICATION left by the said William Phillips Thompson
at the Office of the Commissioners of Patents on the 14th May 1879.
WILLIAM PHILLIPS THOMPSON, of the Firm of W. P. Thompson and Co., of 323,
High Holborn, in the County of Middlesex, and of 6, Lord Street, Liverpool, in
the County of Lancaster, Patent Agents and Consulting Engineers.
"IMPROVE-
MENTS IN HANDLES OR HOLDERS FOR DENTAL AND OTHER SMALL TOOLS OR
INSTRUMENTS." (A communication from abroad by Henry D. Justi, of Philadelphia,
United States.)
This Invention relates to an improved hand piece or holder for dental pluggers,
drills, and all other small tools or instruments which are held and manipulated by
one hand, and consists in a socket in which the tool may be inserted and rotated,
provided with a lateral arm adapted to fit within the palm of the hand and receive
the pressure, thus enabling the operator to apply the entire pressure required by the
body of the hand instead of by the fingers as usual, leaving the fingers free to
guide and direct the tool.
Ordinarily the entire strain and pressure are received by the ends of the fingers,
which soon become cramped and tired, causing great annoyance and interfering
materially with the delicate manipulation of the instrument, but by this device
the strain is transferred to the palm and wrist of the operator, and the fingers
required only to guide and turn the instrument.

page_text: The socket or hand piece being applied the tool is grasped as usual with the point
between the thumb and fingers, whereupon the body of the socket will rest across
the outside of the hand and the arm bear against the palm, in which position the
tool may be operated with ease and facility, the fingers being used to turn and
guide the point as occasion may require.
One tool may be withdrawn from the socket and others of different forms and
styles for different purposes substituted without removing the socket from the
hand, or the shank or body may be permitted to remain in the socket and
changeable points employed therewith.
The precise form of the socket is immaterial, provided it is adapted to relieve the
ends of the fingers, and by means of a side arm transfer the strain and pressure to the
palm or upper portion of the hand.
The side arm may if desired be made adjustable vertically upon the socket in
any suitable manner, such as by threading the socket on the outside, screwing
the arm thereon and clamping it in place by a jam nut.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Phillips Thompson in the Great Seal Patent Office on the
12th November 1879.
WILLIAM PHILLIPS THOMPSON, of the Firm of W. P. Thompson & Co., of 323,
High Holborn, in the County of Middlesex, and of 6, Lord Street, Liverpool, in
the County of Lancaster, Patent Agent and Consulting Engineer.
IMPROVE-
MENTS IN HANDLES OR HOLDERS FOR DENTAL AND OTHER SMALL TOOLS OR
INSTRUMENTS." A communication from abroad by Henry D. Justi, of Philadelphia,
United States of America.
This Invention relates to an improved hand-piece or holder for dental pluggers,
drills, and all other small tools or instruments which are held and manipulated by
one hand, and consists in a socket in which the tool may be inserted and rotated,
provided with a lateral arm adapted to fit within the palm of the hand and receive
the pressure, thus enabling the operator to apply the entire pressure required by
the body of the hand instead of by the fingers as usual, leaving the fingers free to
guide and direct the tool. Ordinarily the entire strain and pressure are received
by the ends of the fingers, which soon become cramped and tired (causing great
annoyance and interfering materially with the delicate manipulation of the instru-
ment, but by this device the strain is transferred to the palm and wrist of the
operator, and the fingers required only to guide and turn the instrument. Referring
to the accompanying Drawings, Fig. 1 represents a perspective view of a plugging-
tool provided with my holding-socket; Fig. 2, a longitudinal section of the same;
and Fig. 3, a sectional view illustrating a manner of adjusting the side arm. A,
represents an ordinary plugging tool having the upper portion of its shank made
cylindrical and preferably rounded or pointed on the end; B represents my socket,
made of tubular form with a hole to receive the upper end of the tool, and with a
side arm or extension, widened, rounded, and adapted to fit within the palm of the
hand when the tool is held in the ordinary position in the hand. The socket or
hand piece being applied the tool is grasped as usual with the point between the
thumb and fingers, whereupon the body of the socket will rest across the outside of
the hand and the arm bear against the palm, in which position the tool may be
operated with ease and facility, the fingers being used to turn and guide the point
as occasion may require. One tool may be withdrawn from the socket and others
of different forms and styles for different purposes substituted without removing
the socket from the hand, or the shank or body may be permitted to remain in the
socket, and changeable points employed therewith. The precise form of the socket
is immaterial, provided it is adapted to relieve the ends of the fingers, and by means
of a side arm transfer the strain and pressure to the palm or upper portion of the
band. The side arm may if desired be made adjustable vertically upon the socket
in any suitable manner. Fig. 3 illustrates one method of adjustment, such as by
threading the socket on the outside, screwing the arın thereon, and clamping it in
place by a jam nut.
Having now described my Invention, and the best modes known to me of
carrying it into effect, I wish it to be understood that what I believe to be new
and desire to protect by the hereinbefore in part recited Letters Patent, is,-
1st. The hand-socket for holding and controlling dental tools, consisting of the
socket piece having the hole formed therein and the rigid arm formed on one side
and adapted to fit within the palm of the hand, as described and shown, whereby
it is adapted to receive the various hand tools used by dentists.
2nd. In combination with the rotary tool or tool holder, the socket B provided

page_text: with the side arm adapted to fit within the palm of the hand by which the socket
is held.
3rd. In combination with a tool body or socket a vertically adjustable side
arm.
In witness whereof, I, the said William Phillips Thompson, have hereunto
set my hand and seal, this First day of November, in the year of our Lord
One thousand eight hundred and seventy nine.
W. P. THOMPSON. (L.S.)