IMPROVEMENTS IN LOCK SPINDLES
Year: 1860

page_text: LETTERS PATENT to Michael Cavanagh, of Kensington, in the County of
Middlesex, for the Invention of "IMPROVEMENTS IN LOCK SPINDLES."
PROVISIONAL SPECIFICATION left by the said Michael Cavanagh at the
Office of the Commissioners of Patents, with his Petition, on the
23rd May 1860.
I, MICHAEL CAVANAGH, of Kensington, in the County of Middlesex, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN LOCK
SPINDLES," to be as follows (that is to say):-
My Invention has reference to improvements in spindles for mortice and
other locks, whereby the same may be more accurately and readily adjusted to
any thickness of door to which they may be applied than hitherto, and consists
in one end of the spindle being fixed to the knob or handle in the ordinary
manner, whilst the opposite or moveable knob is secured to the spindle and
extending piece, through the medium of a milled union cap or nut, the
adjustment being effected by the action of a small set screw, which passes
longitudinally through the extending piece into the body of the spindle. In
like manner glass or porcelain knobs or handles may be employed in lieu of
wood or otherwise, by fixing or securing a metallic socket tapped for the
reception of the union nut to the stem of the said knob or bandle, through the

page_text: medium of octagonal or other angular formed surfaces, by which the whole
may be removed from the lock or door when necessary by simply unscrewing
the union nut from the metallic socket.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Michael Cavanagh in the Great Seal Patent Office on the
23rd November 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MICHAEL
CAVANAGH, of Kensington, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of May, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-third year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Michael Cavanagh, Her special licence that I, the said Michael Cavanagh,
my executors, administrators, and assigns, or such others as I, the said
Michael Cavanagh, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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 "IM-
PROVEMENTS IN LOCK SPINDLES," upon the condition (amongst others) that
I, the said Michael Cavanagh, my executors or administrators, by an instru-
ment 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 Michael Cavanagh, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, and the Drawings therein referred to (that is to say):-
My Invention has reference to improvements in spindles for mortice and
other locks, whereby the same may be more accurately and readily adjusted
to any thickness of door to which they may be applied than hitherto, and
consists in one end of the spindle being fixed to the knob or handle in the
ordinary manner, whilst the opposite or moveable knob is secured to the
spindle and lengthening or extending piece through the medium of a milled

page_text: union cap or nut, the adjustment being effected by the action of a small 'set
screw, which passes longitudinally through the lengthening or extending piece
into the body of the spindle.
And in order that my said Invention may be more fully understood and
readily carried into effect, I now proceed to describe it by the aid of the
accompanying Drawings, reference being had to the letters and figures thereon
marked (that is to say):-
Fig. 1 represents a side view of my improved lock spindle complete; Fig. 2,
a corresponding view, partly in section, showing the arrangement of the parts
by which the adjustment is effected; Fig. 3, a sectional side view of the same,
representing the several portions thereof disconnected; Fig. 4, a detached
side view of the lengthening or extending piece; Fig. 5, a front view of the
same; Fig. 6, a front view of the milled union cap or nut, separately shown;
Fig. 7, a transverse section of the spindle, taken through the dotted line in
Fig. 3; Fig. 8, a view of the moveable handle, taken through the dotted line
in Fig. 2; and Fig. 9, a detached view of the same. In each Figure the
same letters of reference denote similar corresponding parts.
A, A, the spindle for inserting in the lock; B, B, knob or handle fixed or
secured to one end of the same; C, C, lengthening or extending piece through
which the opposite end of the spindle passes; D, D, adjusting screw;
E, E, screw head or swivel, for actuating the same; F, F, small washer, for
securing the swivel head and screw to the end of the extending piece;
G, G, tapped hole formed in the spindle, for the reception of the adjusting
screw; H, H, bearing shoulders, upon which the spindle turns in the lock;
I, I, union cap or nut for securing the moveable knob or handle J, J, to the
spindle, through the medium of the flange K, K, formed on the lengthening
or extending piece; L, L, metallic socket fitted to the handle, and tapped for
the reception of the union cap or nut, as represented at M, M; N, N, hole or
cavity in the moveable knob, into which the adjusting portion of the spindle
passes; 0, 0, milled edging to the union cap and swivet.
In conclusion to the foregoing description, I would here briefly note, that in
adjusting the length of the spindle to any thickness of door, it is first necessary
to remove the handle J, J, as represented at Fig. 3, by unscrewing the milled
union cap or nut, the spindle may be then passed through the lock in the
ordinary manner, and the necessary adjustment effected by turning the screw
in either direction through the medium of the swivel bead, whereby the
spindle can be lengthened or shortened as required; the handle J, J, being
then replaced and secured to the spindle, and firmly held in its position by
serewing the milled union cap or nut upon the socket L, as shown at Fig. 2.

page_text: It may be also necessary to observe, that by this arrangement, which simplifies
the several parts, and renders the same more compact than hitherto, the
spindle may be readily removed and adjusted to to the lock without the aid of
any tool or instrument, as at present..
And I would further note, that in like manner glass or porcelain knobs may
be employed in lieu of wood, or otherwise, by causing the metallic socket L,
and the portion of the handle into which it is fitted to be octagonally shaped
or formed, for the purpose of more conveniently fixing the same, and
preventing the knob or handle from moving or turning on the spindle.
Having now described the nature of this my said Invention, and the
manner in which the same is to be performed, I would have it clearly
understood that I do not claim as of my Invention the exclusive use of the
several parts herein-before mentioned, except when the same are employed in
and for the purposes of my said Invention, which I hereby declare to consist
in the arrangement of the several parts in connection with the screw or
swivel head, and milled union cap or nut, in the manner and for the purposes
herein-before set forth and described.
In witness whereof, I, the said Michael Cavanagh, have hereunto set
my hand and seal, this Twenty-second day of November, in the year
of our Lord One thousand eight hundred and sixty.
Witness,
F. R. DARKIN CAMPBELL,
-
Clerk to Messrs. Weatherdon & Co.,
77, Chancery Lane.
M. CAVANAGH. (L.S.)