Improvements in Knob Attachments.
Year: 1892

page_text: Date of Application, 16th May, 1892-Accepted, 23rd July, 1892
COMPLETE SPECIFICATION.
Improvements in Knob Attachments.
I, HENRY JAMES PARKER WHIPPLE, of 1 University Place, New Haven,
Connecticut, 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:-
This invention relates to certain new and useful improvements in knob attach-
ments, and has for its object to provide a device of this description having few and
simple parts, which shall be capable of close adjustment to doors of different
thickness, and of ready attachment and detachment, but which shall not be subject
to accidental disengagement or displacement when in position; and with these ends
in view, my invention consists in the construction and combination of elements
hereinafter fully explained and then recited in the claims.
In order that those skilled in the art to which iny invention appertains may fully
understand its construction and method of operation I will describe the same in
detail, reference being had to the accompanying drawing and the numerals marked
thereon, which forms a part of this Specification.
Figure 1 is a sectional elevation showing my knob in position upon the door.
Figure 2 is an inner face view of the knob rose shown in section at the left of
Figure 1, showing the locking plate in its locked position.
Figure 3, is a similar view but with the parts in their unlocked position.
Figure 4, is a plan view showing the exterior of the rose.
Figure 5 is a side elevation of the screw-threaded locking finger.
Figure 6 a detail showing the end of the knob spindle.
•
A represents the door. This has an opening bored through it for the passage of
2 is a
the knob spindle and upon one side it has secured an ordinary knob rose 1.
knob having a knob shank 3 of usual construction attached thereto and in this knob
shank is securely held a square knob spindle 4 which passes through the hole in
the door herein before referred to. The outer end of this knob spindle, as is shown
in the small detail Figure 6, is pierced by three or four small holes 5 at a little
distance apart.
6 is a knob for the other side of the door, provided with a
shank 7, and this shank has a square socket adapted to receive the end of the
knob spindle, and has also a transverse hole into which a pin 8, shown in dotted
lines at Figure 1 may be inserted so as to pass through one of the several holes
in the knob spindle and thus securely attach the knob spindle and shank together.
9 is a knob rose having a central opening for the passage of the knob spindle
and adapted to be attached firmly to the face of the door, as by means of screws.
The under side of this rose is recessed and contains a laterally movable plate 10
open at its centre for the passage of the spindle and provided with a locking
tongue 11. A spring 12, serves to hold this plate normally in its locked position,
as will be presently explained. At its centre the rose 9, is recessed or has the
opening therethrough enlarged as appears at Figure 1, and the diminished portion
of this opening is screw-threaded for the accommodation of a screw-threaded
collar or thimble 13, whose enlarged outer end fits closely within the recess in the
rose, and whose screw-threaded portion runs in the screw threads inside the rose.
This thimble is transversely slotted through its screw threaded portion, as seen at
Figure 5, and the locking tongue 11 is adapted to seat in the slots and hold the
thimble as against rotation for a purpose presently to be explained. The thimble
just referred to is somewhat countersunk or recessed at its outer end to provide a
seat for the inner end of the knob shank 7. The knob rose, 9, has a slot 14 in it
and through this slot projects outward, so as to be manipulated by the hand a
pin 15, which serves as a handle whereby the locking plate may be moved laterally
DQ1

page_text: against the action of its spring so as to unlock and permit to the thimble a turning
movement in its bearing in the rose.
The operation of my invention is as follows. The rose 1 is first adjusted on
one side of the door and the knob 2 bearing the knob spindle is seated in the
position in which it is shown at Figure 1. The other knob rose 9 is then attached
at the other side of the door and the thimble 13 screwed inward as far as it
will go, the locking plate having first been withdrawn so as to permit the thimble
to be turned. The knob shank 7 is then seated over the end of the knob spindle
and the pin 8 inserted so as to fasten the shank and spindle together, and in
inserting this pin the hole which will make the closest approximation to a close
fit should be selected. When this has been done the locking plate should be
withdrawn so as to release the thimble, and the latter should then be turned so
as to back it out of the rose until its outer face seats firmly against the inner
end of the knob shank 7, thereby taking up all endwise play between the two
knob shanks. The locking plate should then be released and its tongue or bolt
permitted to slip into one of the slots in the thimble, which latter is thereby
held firmly as against movement in any direction. As the abutting parts wear, it
is only necessary to unlock the thimble and turn it outward upon its screw thread
until a close fit is made against the knob shank, and then permit the locking
plate to re-engage with it.
I have shown the knob shank 7 and the spindle as connected by means of an
ordinary pin, but it is obvious that a screw or wedge could be substituted
therefor. I have also shown what I conceive to be the best arrangement of the
locking plate, that is, seated in the rose and having a bolt moving into or out
of engagement with the slotted thimble, but this exact construction I do not
deem material, since the requirements of my invention are satisfied by any locking
device operating to normally hold the thimble as against rotation in the rose but
moveable out of engagement for the purpose of making the adjustment herein-
before referred to.
Having thus described my invention, what I claim as new and desire to secure
by Letters Patent is,
1-The combination with the knob 'spindle and its attached knob, of the
complementary knob having its shank socketed, means of connection between the
socketed shank and the spindle, the knob rose, the tubular threaded thimble
seated therein, and means for securing the thimble as against rotation within the
rose, substantially as specified.
2-In a knob attachment, a knob rose having seated therein a screw-threaded
collar or thimble capable of inward and outward movement relative to the rose,
the knobs and knob spindle, and a lock interposed between the rose and the
thimble, substantially as set forth.
3-In a knob attachment, a knob spindle having one fixed and one moveable
knob, in combination with the knob rose having therein a locking device, and a
screw-threaded collar or thimble seated in the knob rose and moveable inward
and outward therein, and provided with slots for engagement with the locking
device.
4 The combination with the knobs and knob spindle, of the knob rose, the
screw-threaded collar seated in said rose and moveable outward in its threads to
abut against the end of one of the knob shanks, and means for locking said collar
and the rose together.
Dated this 16th day of May 1809