Combined Sash Lift and Lock.
Year: 1891

page_text: Date of Application, 17th Nov., 1891-Accepted, 6th Feb., 1892
COMPLETE SPECIFICATION.
Combined Sash Lift and Lock.
I, CHARLES KNAPP, of 5888 Cabanne Place, in the City of St. Louis, State of
Missouri, U.S.A., Gentleman, do hereby declare the nature of this invention, and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My invention relates to an improvement in "combined automatic sash lift and
Jock," and consists in the novel arrangement and combination of parts, as will be
more fully hereinafter described and designated in the claims.
In the drawings :-
Fig. 1 is a perspective view of a window-frame with the parts broken away, and
a sash showing my invention applied thereto.
Fig. 2 is a perspective view of one of the jambs of a window-frame with parts
broken away, showing a part of my invention applied thereto.
Fig. 3 is a front elevation of a sask with parts broken away, showing part of my
invention applied to the same.
Fig. 4 is a side elevation of the automatic lock detached.
Fig. 5 is a rear elevation of the same when the sash is locked down, or when the
lock is in its normal position.
Fig. 6 is a rear elevation of the automatic lock when the same is operated.
Fig. 7 is a detail view of a reciprocating locking-rod which employ in carrying
out my invention.
Fig. 8 is a detail view of said reciprocating-rod and the lever which reciprocates
the same.
The object of my invention is to construct a combined automatic sash lift and
lock (the same especially designed for railway cars) and so devised that the sash
can be manipulated and locked with one hand, and also that the sash may be held
at any desired elevation.
I will give a further description of the utility and advantages of my invention,
in connection with a mechanical description thereof.
Referring to the drawings
:-
1, indicates the sash which may be made of any suitable and desired construction,
and of any suitable material, and embodies the ordinary form of a railway or
any other car-window sash.
2, indicates the lower horizontal cross-piece of said sash, and 3, one of the
vertical pieces thereof.
4, indicates the window-sash frame, and 5, indicates one of the vertical jambs
thereof.
Located in the vertical groove 6 of said jamb in which the sash 1 vertically
moves, is a bar 7 provided with a series of horizontal shoulders 8, and at its lower
portion with a shoulder 9, for the purposes more fully hereinafter described.
Having given a general outline of my invention, I will now proceed to describe
the lifting mechanism and also the mechanism which locks the sash down and holds
the same at any desired elevation.
10 indicates the lifting and locking mechanism, which I will now proceed to
describe in detail, referring to Figs. 4, 5, 6, 7 and 8 for illustration.
11 indicates a rectangular plate, the same being provided with a series of holes
or perforations through which screws 12 may pass, for securing said plate to the
horizontal piece 2 of the window-sash.
Cast integrally with plate 11 is a finger-piece 13, which is used for the purpose
of elevating the window-sash.

page_text: Said piece 13 may embody any desired and suitable form.
Secured to the rear face of said plate 11 are lugs 14, and said lugs 14 are
located in alignment with the lateral edges of an elongated perforation 15 formed
in said plate.
16 indicates a thumb-piece as illustrated in Figs. 1, 3 and 4. Said thumb-piece
is provided with a decreased portion 17 which is adapted to pass through the
elongated perforation 15; and projects therefrom constituting an upturned arm 18.
Said arm 18 is pivoted to and mounted between the lugs 14.
19 indicates a right angular lever, which is pivotally secured on the lug 20,
shown in dotted lines in Fig. 5, and mounted on a pin 21 which passes there-
through and into lug 20.
The arm 22 of said lever is secured to one end of the spiral spring 23 in any
suitable and mechanical manner, and the other end of said spring is secured in any
suitable and mechanical manner to a lug 24, cast integrally with plate 11.
It may be noted in this connection that the horizontal piece 2 is recessed (which
is not illustrated) so that the lever 19, the spring 23, and the other parts secured
to rear face of plate 11, may be located in said recess.
Arm 25 of lever 19 is pivotally mounted on a stud 26 formed on the recipro-
cating locking-rod 27.
It may be noted in this connection that lug 26 projects from a decreased
portion 28 of the reciprocating locking-rod 27, and also that the operation of the
lever 19 reciprocates the rod 27.
The arm 18 of the thumb-piece 16 normally rests under the arm 22 of lever 19,
as illustrated in Figs. 5 and 6, and also that said thumb-piece 16 or more specifically
the arm 18 thereof, actuates said right angular lever 19.
The reciprocating rod 27 passes through or is located in a bore 29, formed in the
horizontal piece 2 and the vertical-piece 3 of the window-sash, and normally pro-
jects beyond the edge of said vertical-piece 3 as illustrated in Fig. 3.
Said rod 27 is also mounted in a metallic bearing ring 30, the same being. located
in the vertical-piece 3 of the window-sash.
Having fully described the mechanical parts of my invention I will now proceed
to describe the operation of the same.
The parts are constructed and put together in a mechanical form, substantially
as hereinbefore described.
In order to fully comprehend the operation of my invention, the reader should
first conceive the sash to be down, or the window closed.
In this position the projecting-ends of the locking-bar 27 rest directly under and
against the shoulder 9 of the bar 7, and in such position the sash 1 can only be
elevated and the window opened only by a person on the inside, and having access
to the thumb-piece 16.
I will now proceed to describe the manner of unlocking the sash 1 so that the
same may be elevated, and also the method of lifting the same.
The operator should first apply the fore-finger under the finger-piece 13 and
simultaneously with such application he should press down on the thumb-piece 16
with his thumb.
By pressing down on the thumb-piece 16 the arm 18 thereof will be elevated,
and will consequently carry with it in an upward movement the arm 22 of lever 19.
The upper movement of arm 22 will throw the arm 25 of lever 19 toward the
spring 23, towards the left in Fig. 1 or towards the right in Fig. 6.
Said movement of arm 25 will retract the locking-rod 27 to the left as illustrated
in Fig. 1-from under the shoulder 9, and the sash may then be elevated by the
operator lifting up on a finger-piece 13. Said sash may be elevated to any desired
distance, and when left free the rod 27 or rather the projecting end thereof, will
automatically engage with some of the series of horizontal shoulders 8 and conse-
quently, prevent the window-sash 1 from falling down.
By changing the construction of the vertical bar 7 (which however is not illus-
trated) that is by forming a series of holes therein, in lieu of the horizontal

page_text: shoulders 8, the sash 1 may be locked, or prevented from being moved up and down
only from persons on the inside at any desired elevation.
It may be noted in this connection that the locking-rod 27 may be horizontally
located, as herein before described, and reciprocates in a horizontal direction.
The function of spring 23 is to hold the right angular lever 19 in a position as
illustrated in Fig. 5, and when lever is in said position the locking-bar 27
projects beyond the vertical-piece 3 and consequently locks the sash down if the
window-sash is closed, or holds it at any desired adjustment or position when the
window is open.
Or in other words the elasticity of the spring 23 holds down the arm 22, and
consequently through arm 25 pushes the rod 27 so that the end of the same
projects under the shoulder 9, or rests on or engages with a series of horizontal
shoulders 8.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what 1
claim is:-
*
1. A combined automatic sash lift and lock" having a horizontally reciprocating
locking-rod 27, means for reciprocating the same, and a bar provided with shoulders 8
and shoulders 9, substantially as set forth.
2. A "combined automatic sash lift and lock" having a plate 11, a finger-
piece 13 cast integrally therewith, a thumb-piece 16 pivotally mounted in said
plate, a right angular lever 19 pivotally mounted or secured also to said plate and
adapted to be actuated by said thumb-piece, a reciprocating-rod 27 pivotally
mounted on the vertical arm 25 of said lever, and a spiral spring 23 secured to the
horizontal arm 22 thereof and the plate 11, substantially as set forth.
3. A combined automatic sash lift and lock" having a plate 11, a finger-
picce 13 cast integrally therewith, a thumb-piece 16 pivotally mounted in said
plate, a right angular lever 19 pivotally mounted or secured also to said plate and
adapted to be actuated by said thumb-piece, a reciprocating-rod 27 pivotally
mounted on the vertical arm 25 of said lever, a spiral spring 23 secured to the
horizontal arm 22 thereof and the plate 11, and a bar 7 provided with a shoulder 8
and a shoulder 9, substantially as set forth.
4. A "combined automatic sash lift and lock" having a plate 11, a finger-
piece 13 cast integrally therewith, and on the front face thereof, an elongated per-
foration 16 formed in said plate, lugs 14 cast integrally with the rear surface of
said plate, a thumb-piece 16 provided with a decreased portion 17 and an arm 18
pivotally mounted between said lugs 14, a lug 20 cast integrally with the rear
surface of said plate, a right angular lever 19 provided with arms 22 and 25
pivotally mounted on said lug 20, a spiral spring 23 secured to said arm 22 and
lug 24 formed on the rear surface of said plate, a reciprocating locking-rod 27
provided with a stud 26 on which arm 29 of lever 19 is mounted, and a bar 7 pro-
vided with horizontal shoulders 8 and a shoulder 9, substantially as set forth.
Dated this 17th day of, November 1891.
ALLISON BROS.,
Agents for the Applicant.