IMPROVEMENTS IN LOCK SPINDLES AND DOOR KNOBS TO BE USED THEREWITH
Year: 1869

page_text: LETTERS PATENT to Matthew Jarvis, of Mansell Street, Goodman's
Fields, and Edward Millward, of Northern Buildings, Skinner
Street, Somers Town, both in the County of Middlesex, for the
Invention of "IMPROVEMENTS IN LOCK SPINDLES AND DOOR KNOBS TO
BE USED THEREWITH."
Scaled the 22nd October 1869, and dated the 20th May 1809.
PROVISIONAL SPECIFICATION left by the said Matthew Jarvis and
Edward Millward at the Office of the Commissioners of Patents,
with their Petition, on the 20th May 1869.
We, MATTHEW JARVIS, of Mansell Street, Goodman's Fields, and
EDWARD MILLWARD, of Northern Buildings, Skinner Street, Somers
Town, both in the County of Middlesex, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN LOCK SPINDLES AND DOOR
KNOBS TO BE USED THEREWITH," to be as follows:-
The Invention has for its object improvements in lock spindles and
door knobs to be used therewith, and consists in the employment of a
sliding plate or catch working within a suitable opening formed to
receive it in the bushing of the door knob, such plate or catch working

page_text: in connection with notches or recesses formed on one or more sides of
the lock spindle. When it is desired to adjust a door knob on its spindle
to suit any thickness of door it is only necessary to draw out the sliding
plate or catch a short distance in order that it may clear the notelics or
recesses formed in the lock spindle, and after such adjustment has been
effected to slide back the catch or plate so that it may enter a suitable
notch or recess of the lock spindle, by means of which it becomes again
secured. The sliding plate or catch is connected by a screw or pin to the
bushing of the door knob, such screw or pin passing through a slot or
opening in the plate or catch so as to allow of its being slidden in and
out without its becoming wholly detached from the bashing.
In applying our Invention to some description of locks, where
cheapness is not an object, we employ a plate attached to the door by
screws or otherwise, in which a recess is formed to receive the end of the
bushing of a door knob. In such recess the bushing is free to turn, and
in order to retain the bushing correctly in position in the recess in tlie
plate a catch, pinjointed or otherwise attached to the plate, is employed,
which when pressed down enters a neck or groove formed to receive it in
the end of the bushing, and thus affords a means of holding the parts
correctly in position. The connection of the bushing with the lock
spindle is in this case similar to that already described.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Matthew Jarvis and Edward Millward in tlie Great
Seal Patent Office on the 23rd October 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, MATTHEW
JARVIS, of Mansell Street, Goodman's Fields, and EDWARD MILLWARD,
of Northern Buildings, Skinner Street, Somers Town, both in the
County of Middlesex, send greeting.
WHEREAS Jer most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of May, in the year of
our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Matthew Jarvis and Edward Millward,
Her special licence that wo, the said Matthew Jarvis and Edward
Millward, our executors, administrators, and assigns, or such others as

page_text: we, the said Matthew Jarvis and Edward Millward, our 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, usc, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
LOCK SPINDLES AND DOOR KNOBS TO BE USED THEREWITH," upon the condition
(amongst others) that we, the said Matthew Jarvis and Edward Millward,
our exccutors or administrators, by an instrument in writing under
our, or one of our or their, or one of their hands and seals, should parti-
cularly 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 we, the said Matthew Jarvis and Edward
Millward, do hereby declare the nature of our said Invention, and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:---
The Invention has for its object improvements in lock spindles and
door knobs to be used therewith, and consists in the employment of a
sliding plate or catch working within a suitable opening formed to
receive it in the bushing of the door knob, such plate or catch working
in connection with notches or recesses formed on one or more sides of
the lock spindle. When it is desired to adjust a door knob on its spindle
to suit any thickness of door it is only necessary to draw out the sliding
plate or catch a short distance in order that it may clear the notches or
recesses formed in the lock spindle, and after such adjustment has been
effected to slide back the catch or plate, so that it may enter a suitable
notch or recess of the lock spindle, by means of which it becomes again
secured. The sliding plate or catch is connected by a screw or pin to
the bushing of the door knob, such screw or pin passing through a slot
or opening in the plate or catch so as to allow of its being slidden in and
out without its becoming wholly detached from the bushing.
In applying our Invention to some description of locks, where
cheapness is not an object, we employ a plate attached to the door by
screws or otherwise in which a recess is formed to receive the end of the
bushing of a door knob. In such recess the bushing is free to turn, and
in order to retain the bushing correctly in position in the recess in the

page_text: plate a catch, fan jointed or otherwise attached to the plate, is employed,
which when pressed down enters a neck or groove formed to receive it
in the end of the bushing, and thus affords a means of holding the parts
correctly in position. The connection of the bushing with the lock
spindle is in this case similar to that already described.
Having thus stated the nature of our Invention we will proceed more
fully to described the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1 shows construction of our Invention for fixing knobs to
doors. a, a, are the fixed roses; b, the fast knob which has the spindle
cast or otherwise fixed in it; c, the loose or movable knob; D, the
sliding plate or catch working on a pin in the bush and fitting into
notches or recesses formed on the spindle E; F represents the ring with
male thread screwed to the bush to cover sliding plate; and g, a
washer of leather or other substance to prevent concussion.
Figure 2 shows a method of fixing ring F 1 to bush F 2 by means of
a bayonet joint to each side of bush, and a pin cast or otherwise fixed
in the same as is fixed to knob, as heretofore described.
In witness whereof, we, the said Matthew Jarvis and Edward
Millward, have hereunto set our hands and seals, this Twenty-
third day of October, in the year of our Lord One thousand
eight hundred and sixty-nine.
Witness,
Ilis Mark,
JAMES WADE.
MATTHEW JARVIS.
EDWARD MILLWARD.
His X Mark
(L..S.)
(L.S.)