CERTAIN IMPROVEMENTS IN ATTACHING DOOR AND OTHER KNOBS OR HANDLES TO AND ADJUSTING THEM ON THEIR SPINDLES "
Year: 1882

page_text: LETTERS PATENT to Edwin Henry Baxter of Birmingham in the County of
Warwick, for an Invention of "CERTAIN IMPROVEMENTS IN ATTACHING DOOR
AND OTHER KNOBS OR HANDLES TO AND ADJUSTING THEM ON THEIR SPINDLES
"
PROVISIONAL SPECIFICATION left by the said Edwin Henry Baxter at
the Office of the Commissioners of Patents on the 15th June 1882.
EDWIN HENRY BAXTER, of Birmingham in the County of Warwick
" CERTAIN
IMPROVEMENTS IN ATTACHING DOOR AND OTHER KNOBS OR HANDLES TO AND
ADJUSTING THEM ON THEIR SPINDLES,"
My invention relates to the construction and arrangement of parts herein after
described for attaching door and other knobs or handles to and adjusting them on
their spindles.
I will describe my Invention thus, as applied to the knobs and spindles for
doors.
I employ the ordinary plain square spindle. At the one end I permanently affix
one knob, and known as the outside knob, the face of the spindle on which I
arrange the moveable or adjustable knob I make a series of slots in close proximity
to each other, cross wise, and of a number sufficient for my requirement, or in the
case of cross slots I may use cross depressions or counter sunk parts.
The knob that is moveable and adjustable being the inside one, is somewhat in
its general configuration the same as those hitherto employed, but to the collar at
the end of the neck I make a slot or cut of a depth sufficient that when it is
arranged upon the face of the spindle to a degree they correspond, in this said slot
in the collar I arrange a moveable plate working upon a pin from one side, in
outline being somewhat the form of an arc, in size corresponding to the collar,
in thickness equal to the slot in which it is moved, and to the cross slots in the
spindle.
When the spindle with the fixed or permanent knob is passed through the door
and square of lock, the moveable knob with its plate lifted up is placed upon and
fed up the spindle until reaching the lock or door, the plate is now brought
downwards and engages in the nearest slot in the spindle to the door and is
secure. To release or remove the same a slight depression or countersunk is
arranged, so as to admit a sharp pointed instrument for lifting up the plate.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edwin Henry Baxter in the Great Seal Patent Office on the
14th December 1882.
EDWIN HENRY BAXTER of Birmingham in the County of Warwick. "CERTAIN
IMPROVEMENTS IN ATTACHING DOOR AND OTHER KNOBS OR HANDLES TO
ADJUSTING THEM ON THEIR SPINDLES
"
AND
My Invention relates to the construction and arrangement of parts hereinafter
described for attaching door and other knobs or handles to and adjusting them on
their spindles. I will describe my invention thus, as applied to the knobs and
spindles for doors;-I employ the ordinary plain square spindle, at the one end
I permanently affix one knob and known as the outside knob, the face of the
spindle on which I arrange the moveable or adjustable knob, I make a series of
slots in close proximity to each other crosswise, and of a number sufficient for my
requirement or, in the place of cross slots I may use cross depressions or counter
sunk parts
The knob that is moveable and adjustable being the inside one, is somewhat
in its general configuration the same as those hitherto employed, but to the collar
at the end of the neck I make a slot or cut of a depth sufficient that when it is
arranged upon the face of the spindle to a degree they correspond in this said slot
in the collar I arrange a moveable plate working upon a pin from one side, in
outline being somewhat the form of an arc in size corresponding to the collar,
in thickness equal to the slot in which it is moved and to the cross slots in the
spindle
When the spindle with the fixed or permanent knob is passed through the door
and square of lock, the moveable knob with its plate lifted up is placed upon and
fed up the spindle until reaching the lock or door the plate is now brought
downwards and engages in the nearest slot in the spindle to the door and is secure,
to release or remove the same a slight depression or counter sunk is arranged so as
to admit a sharp pointed instrument for lifting up the plate
But as my invention will be best understood aided by a reference to the drawings
hereunto annexed I will proceed to describe the same reference being made to the
figures and letters marked thereon (that is to say)
Figure 1 is a front view elevation showing my improvements as applied to a
mortice lock,
Fig: 2 a sectional view of same detached
Fig 3 is a view in elevation of knob permanently affixed to the spindle, end view
of spindle and knob with socket, and end of spindle in plan.
Fig 4 end of knob with socket and plate or fastener
Fig: 5. views in elevation and plan of socket detached from knob
Fig 6. views in elevation and plan of plate or fastener detached from knob.
Fig: 7 Parts detached in plan, elevation and side views being a modification of
the above
Fig: 8. Parts detached side view and end view.
"a" is the knob "b" the collar, "c." is the slot or cut. "d" is the moveable
plate or fastener working upon the pin "e."-"f" is a projecting lip for raising d
when the knob a is required to be removed-g is the spindle with cross slots h, or
countersunk parts, i corresponding with d'., jis a socket, being a square tube and
fixed in the knob, acting as a guide to g and imparting steadiness-In figures 1
and 2 the mode of fastening the knob a to the spindle g is clearly illustrated but
at one end only as the outer or outside knob of the door is permanently affixed

page_text: to the spindle, but should requirement arise for both knobs to be released and
adjusted the other end of spindle and parts corresponding is treated as above
described.
Having given a general description of my Invention and the manner in which
the same may be practically carried into effect, nevertheless I wish to observe that
the mode that may be pursued according to the skill or appliances of the artizan
engaged in their production the same may be varied according to their individual
caprice without affecting the character or principle of my Invention.
What I claim as new and original and desire to be secured to me by the herein-
before in part recited Letters Patent for "Certain Improvements in attaching door
and other knobs or handles to and adjusting them on their spindles," is, the general
construction combination and arrangement of parts, substantially as hereinbefore
described and shewn on the accompanying drawings or any mere modification
thereof.
In witness whereof I the said Edwin Henry Baxter have hereunto set my
hand and seal this thirteenth day of December in the year of our Lord
one thousand eight hundred and eighty two
Witness
THOMAS KENDRICK
EDWIN HENRY BAXTER (L.S.)