Improved Means for Raising and Lowering Windows and the like.
Year: 1899

page_text: Date of Application, 19th Oct., 1899-Accepted, 25th Nov., 1899
COMPLETE SPECIFICATION.
Improved Means for Raising and Lowering Windows and the like.
We, CASPAR KORINGER, Merchant, of No. 20, Wielandgasse Gratz, Austria,
and ALBERT LAGUS, Merchant, No. 88, Konigsstrasse, Prague-Karolinenthal,
Bohemia, Germany, 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 folowing statement:―
The present invention relates to a contrivance for raising and lowering windows
and the like and is especially adapted in connection with the sliding windows of
carriages.
For this purpose a lazy tongs device connected with the window frame is so
arranged upon or within the lower or covered part of the door, that it can be
extended or contracted at will by turning or moving an operating part or handle,
suitably arranged on the inner side of the door and within easy reach of the hand
of the occupant, by which means the window may be raised or lowered.
The invention is illustrated, by way of example, as applied to a carriage door.
Figure 1 is an elevation of the device, the outer or protecting portion of the
door being removed.
Figure 2 is a transverse longitudinal section through the carriage door, and
Figure 3 represents a detail of the operating mechanism.
In a groove (a) of the bottom har (b) of the window frame (c) are arranged
plates (e) connected to the two top members of a lazy-tongs s, and, -in contact
with and running on the underside of said bar b are rollers d connected to said
members, and intended to facilitate the movement of the lazy-tongs. The lazy-
tongs are arranged between the double boarding of the carriage door and the two
bottom members are also provided with rollers running on a rail or guide f.
The pin connecting the two bottom members of the lazy-tongs is securely
connected with or inserted in a vertical bar or plate h provided with a longitudinal
slot i in which are guided the central pivot pins of the lazy tongs. This guide
bar passes through the bar f and rests at son an arched or other spring j,
the latter constantly tending to push the guide bar upwards, and, with it, the
lazy-tongss and the window frame c connected to the latter.
On the upper end of the guide bar h, at I is arranged a crank device mn
which when turned in one or the other direction will raise or lower the window.
This crank device is arranged as follows:-
The axle m of the crank n passes through the inner board of the door (Figure 2)
and is secured to the centre of a segmental disc o provided with an eccentrically
fixed pin p.
The pin p engages in a horizontal groove 9 of a guide block r movable vertically
in a recess provided for that purpose in the casing enclosing the actuating
disc o, the guide block r being pivotally connected with the guide bar h by
means of the pin 7.
The device acts in the following manner-when say the window is to be
lowered or opened in which case the handle n will be turned towards the left,
TAB

page_text: In this movement the segment shaped plate o and the pin p participate with
the result that the guide block is pressed vertically downwards, the latter carry-
ing with it the guide bar h. In the movement of the guide bar, however, the
lazy tongs become involved owing to the pin connecting the two parts, and
thus also the window frames, which descends and occupies the position indicated
in dotted lines (Figure 2).
When turning the handle in the opposite direction the movements of the
various parts of the mechanism described are reversed, resulting in an upwards
movement of the window-frame, in which movement it is assisted by the effect
of the spring on the guide bar h.
In order to be able to fix the window at intermediate positions, several stops
or catches are arranged in the path of the crank handle on the inner part of the
door, which stops give way when forced by the crank, but otherwise secure the
latter and with it the window in the different corresponding positions.
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
I claim is:―
1. Apparatus for raising and lowering windows by means of a lazy-tongs
device operated by a crank handle, comprising a pin, on a plate connected to
the crank handle, engaging with a vertically movable guide block connected to
a vertical guide bar to which the pivot pin of the two bottom members of the
lazy tongs is connected, substantially as described.
2. Apparatus for raising and lowering windows comprising a slotted guide
bar, a lazy-tongs device, the pivot pin of the two lower members of which is
connected thereto, rollers at the extremities of the end members of the lazy-
tongs, a guide block on said bar provided with a horizontal groove, a crank plate
with a pin engaging said groove, and a crank handle, substantially as described,
3. The complete apparatus for raising and lowering windows substantially as
described or illustrated in the accompanying drawings.
Dated this 19th day of October 1899.
BOULT, WADE, & KILBURN,
Agents for the Applicants.