An Improved Method and Appliance for Connecting Frame Parts of Windows and the like.
Year: 1891

page_text: Date of Application, 3rd Apr., 1851
Complete Specification Left, 31st Dec., 1891-Accepted, 6th Feb., 1802.
PROVISIONAL SPECIFICATION.
An Improved Method and Appliance for Connecting Frame Parts of
Windows and the like.
I, CHARLES HUELSER of the firm of Huelser & Co. of Temple Chambers,
London, International Patent Agency, do hereby declare the nature of this inven-
tion, a communication to me from abroad by August Lübbe of the firm of
Gebrüder Löbbe of Crefeld in the Empire of Germany, Manufacturer, to be as
follows:-
This invention relates to an improved mode of joining frame parts and the
appliance for so joining the same, which method of connection is intended to serve
as a substitute for the mortise and tenon connection hitherto applied to window
and other frames.
The improved method essentially consists in drawing the obtuse ends of the
frame parts to be connected firmly together by the insertion, into corresponding
slots provided in said ends, of a metal plate on a number thereof having an inner
and an outer angle suited to the corresponding frame angles formed by the connection.
The sides of said metal plate are provided with raised edges tapering in width
towards the inner angle, whereby the frame parts are firmly driven together and
prevented from receding from each other.
The appliance for holding the frame parts together for being joined by the metal
plate essentially consists of a support in which is lodged a screw spindle with
right and left thread adapted to be operated by hand wheel and pinions. On each
of the two threads of the spindle is placed a nut which is connected through a
slot of the support with a longitudinal plate having a considerable number of
holes. For each frame angle to be formed a draw rod is provided which has at
one end a downward pin fitting into the holes of the longitudinal plates. The
other end of each draw rod is connected with a block or foot on which is secured
by a screw device a plate having a circular slot in which two pegs are so secured
as to press from outside against the corners of the approached frame parts and
firmly lock their bevellings together by the turning of the screw spindle, whereby
the draw rods and with them the slotted plates are pulled to the inside. On the
outer sile of each slotted plate is mounted a box in which a screw spindle can be'
turned by a hand wheel. Each spindle has a nut provided with an attachment
conformed in shape to the corners of the metal joining plates, which can thus be
pressed by the spindle into the slots of the frame parts.
Datad this 2nd day of Annil 1901
HUELSER & Co.,
Agents for Applicant.
COMPLETE SPECIFICATION.
An Improved. Method and Appliance for Connecting Frame Parts of
Windows and the like.
I, CHARLES HUELSER of the firm of Huelser & Co. of Temple Chambers,
London, International Patent Agency, do hereby declare the nature of this inven
tion, a communication to me from abroad by August Löbbe of the firm of Gebr.
Löbbe of Crefeld, in the Empire of Germany, Manufacturer, and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The object of this invention is an improved method and appliance for joining

page_text: frame parts of windows and the like which method is intended to serve as a substitute
for the mortise and tenon connection hitherto employed.
Referring to the accompanying drawing illustrating my invention,
Fig. 1 shows a metal plate m with raised tapering edges, by which the obtuse
ends of the frame parts to be connected are drawn firmly together.
Fig. 2 is a section of a window frame connected by such metal plates m. The
frame ends are joined precisely together eitlier mitre-quoin-fashion as in Fig. 2 or
angularly and provided according to the thickness of the wood with one or more
simple cutsFig. 1 for introducing the metal plates m. The raised edges of the
plate drive by their tapering the parts firmly together and prevent their receding.
Such connections have over the usual connections the great advantage that a
breaking off or rotting of the pivots is excluded.
Figs. 3 to 7 illustrate an appliance for holding together the frame parts when
driving in the plate n. and for driving in the latter.
In frame a revolve he screw spindle with right and left thread, which is
adapted to be revoly by hand wheel by means of conic wheels d. On the
right and on the left read of spindle is provided a nut f connected through a
slot of frame a with a plate e. These two plates e are provided with a great number
of holes-into which can be placed a pin at the end of the four draw rods 9. The
other ends of the draw rods g are connected with the feet to which is secured by
screw device a plate i provided with a circular slot. In the slot of plate i two
pegs k are so secured, that, when, by the turning of screw spindle b, the plates e,
and with these the draw rods y are tightened, they press from outside against the
corners of the frame parts laid together, and firmly close the joints thereof. On
plate is mounted a screw spindle box 7, in which can be turned the screw spindle n
provided with hand wheel o. The nuts p on each of these four spindles n carry
parts p' which fit on the corners of the metal plates m. As may be seen, the nuts p
can be advanced by turning the hand wheels o, while the metal plates m are pressed
with part pl into the slots 1.
Fig. 3 illustrates in dotted lines the application of the device to frames of bay
windows.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1) The connection of two frame parts of windows or the like by means of a
common metal plate m which is shifted into corresponding cuts of said parts, the
longitudinal edges of the plates tapering inwardly and causing the frame parts to
be pressed together at their surfaces of contact, substantially as set forth.
2) For executing the connection referred to in Claim 1), a device for pressing
the corners of the frames together characterised by the screw spindle b provided
with right and left screw thread and by metal plates e influenced by said spindle
and serving to engage the draw rods g, to which is attached the apparatus for
driving in the metal plates m, substantially as set forth.
Dated this 31st day of December 1891.
HUELSER & Co.,
Agents for the Applicant.