GB2217382A - A window opening restraint - Google Patents
A window opening restraint Download PDFInfo
- Publication number
- GB2217382A GB2217382A GB8808374A GB8808374A GB2217382A GB 2217382 A GB2217382 A GB 2217382A GB 8808374 A GB8808374 A GB 8808374A GB 8808374 A GB8808374 A GB 8808374A GB 2217382 A GB2217382 A GB 2217382A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stay
- window
- sleeve
- pin
- window opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/18—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted only at one end having a row of holes, notches, or pins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wing Frames And Configurations (AREA)
Abstract
A window opening restraint for use on a window in which the opening is adjustable by way of a stay (10) pivotally attached (at 15) to an opening part (11) of the window and movable to one or more positions on a stay pin (13) fixed to the window frame (14) comprises a rigid short tubular sleeve (20) through which the stay passes and fixed rotatably on the stay pin (13), there being an adjustable stop (23) to prevent unauthorised removal of the free end of the stay from the sleeve, and the sleeve is prevented from unauthorised removal from the stay pin by means of a washer and locknut, or alternatively, a lock washer (not shown). <IMAGE>
Description
A WINDOW OPENING RESTRAINT
THIS INVENTION relates to a window restraint which is intended to serve as a deterrent against unauthorised entry to premises through an open window.
Many security devices are available for locking and securing opening windows, some of which permit the window to be locked in an open position. However most such devices require the use of a key which renders the device inconvenient and sometimes difficult to open and close.
An object of the present invention is to provide a window restraint which is designed to incorporate and utilise an existing window stay and is adapted to restrict access through the open window.
According to the present invention there is provided a window opening restraint for use on a window in which the opening is adjustable by way of a stay pivotally attached to an opening part of the window and movable to one or more positions on a stay pin fixed to the window frame, the restraint comprising a sleeve through which the stay passes, fixed rotatably on the stay pin, means preventing unauthorised removal of the free end of the stay from the sleeve, and means preventing unauthorised removal of the sleeve from the stay pin.
An embodiment of the invention will now be described by way of example only with reference to the accompanying drawings, in which Fig. 1 is a part-sectional illustration of a
window opening restraint made in accordance with
the invention in-situ on a so-called transom
window;
Fig. 2 is a partial elevation taken in the
direction of arrow A in Fig. 1;
Fig. 3 is a view similar to Fig. 2 but showing the
window closed;
and Fig. 4 is an elevation of a device made in
accordance with the invention, in an assembled
form but prior to attachment to a window.
Referring now to the drawings, there is illustrated in Fig. 1 a top-hinged transom opening window of the type which is both opened and fixed closed using a stay 10 pivotally attached to the window 11 and having along its length a number of spaced apertures 12 such that the stay may be placed in a selected position on a stay pin 13 fixed to the window frame 14, the selection of aperture 12 determining the size of opening assumed by the window.
The attachment 15 of stay 10 to window 11 is pivotable both about horizontal and vertical axes so that the stay may be used to lock the window in a closed position against a locking pin 16 as illustrated in Fig. 3.
In accordance with the invention the conventional stay pin which is generally of the type illustrated at 13 but having a plain circumferential surface, is replaced by a threaded pin as best illustrated at 17 in Fig. 4 fixed with respect to a base 18 which can be screwed at 19 in the framework 14. Mounted rotatably about the vertical axis of pin 13, is a rectangular sectioned sleeve 20 formed from a short section of tube and having an aperture in its lower side. A washer 21 and lock nut 22 is applied to permit the sleeve 20 to rotate about pin 13.
As can be seen from Figs. 1 and 3, an adjustable stop 23 in the form of a machine screw and nut, is provided in one of the holes 12 close to the free end of stay 10.
In use, whilst the stay may pass freely through sleeve 20 to be located selectively with one of its holes 12 located over pin 13, the stay is prevented from removal completely from the sleeve, by means of the stop 23. In some cases, the cranked end 24 of the stay is sufficient to prevent removal thereof from the sleeve 20 once the device is assembled and attached to the frame.
Indeed, for assembly it is preferable to place the device partially assembled with lock nut 22 loosely located on threaded pin 13, directly onto the stay prior to attachment at 19 to the frame 14. Once fixed the device cannot be separated from the stay 10 without first being removed from the frame 14.
The sleeve 20 will rotate through at least 900 upon closure of the window to the position illustrated in
Fig. 3 so that the stay may engage locking pin 16, and during opening the sleeve rotates to the position illustrated in Figs 1 and 2.
Preferably the device is made from a metallic alloy or from a rigid plastics material, or a combination of both. In the case of decorative window furniture where the stay itself may be of brass, then the entire device can be similarly made of brass or of a material having a similar appearance.
It is not intended to limit the invention to the above example only, many variations being possible without departing from the scope of the appended claims. For example, in place of the washer 21 and lock nut 22 the sleeve 20 may be held in position by means of a lock washer engaging a groove machined in an otherwise smooth surface of pin 13. Similarly, the stop 23 may be fixed to stay 10 in like manner.
Furthermore, to simplify construction of the device, the sleeve 20 may be formed as a sleeve cut from a tube of circular cross-section.
Claims (9)
1. A window opening restraint for use on a window in which the opening is adjustable by way of a stay pivotally attached to an opening part of the window and movable to one or more positions on a stay pin fixed to the window frame, the restraint comprising a sleeve through which the stay passes, fixed rotatably on the stay pin; means preventing unauthorised removal of the free end of the stay from the sleeve; and means preventing unauthorised removal of the sleeve from the stay pin.
2. A window opening restraint according to Claim 1, in which the sleeve is formed from a short section of a tube of a rigid material such as metal or plastics and is of rectangular cross-section with an aperture in its lower side for receiving the stay pin.
3. A window opening restraint according to Claim 1 or Claim 2, wherein said means preventing unauthorised removal of the free end of the stay from the sleeve includes a stop member located close the free end of the stay.
4. A window opening restraint according to Claim 3, wherein said stop member is adjustable in position along said stay thus to determine the maximum opening of the window.
5. A window opening restraint according to Claim 1, wherein the sleeve is prevented from unauthorised removal from the stay pin by means of a washer and locknut, the stay pin having an outer threaded surface to receive same.
6. A window opening restraint according the Claim 1 or Claim 2, wherein the means preventing unauthorised removal of the free end of the stay from the sleeve pin comprises a lock washer engaged in a groove machined in an otherwise smooth surface of the stay pin.
7. A window opening restraint according to any preceding claim, wherein the sleeve is freely rotatable on the stay pin.
8. A window opening restraint according to any preceding claim, wherein the stay is formed as a length cut from a tube of circular cross-section.
9. A window opening restraint substantially as hereinbefore described with reference to and as illustrated in the accompany drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8808374A GB2217382A (en) | 1988-04-09 | 1988-04-09 | A window opening restraint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8808374A GB2217382A (en) | 1988-04-09 | 1988-04-09 | A window opening restraint |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8808374D0 GB8808374D0 (en) | 1988-05-11 |
GB2217382A true GB2217382A (en) | 1989-10-25 |
Family
ID=10634896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8808374A Withdrawn GB2217382A (en) | 1988-04-09 | 1988-04-09 | A window opening restraint |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2217382A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2256005A (en) * | 1991-05-10 | 1992-11-25 | Baber M J & Co Ltd | Window stay. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB213094A (en) * | 1923-03-03 | 1924-03-27 | Arthur Illidge | Improvements in, or relating to, casement stays |
GB294312A (en) * | 1928-03-12 | 1928-07-26 | Thomas Franks | Improvements in casement stays |
GB901288A (en) * | 1959-12-17 | 1962-07-18 | James Wheeldon & Sons Ltd | Improvements in or relating to casement stays |
GB2042057A (en) * | 1979-02-19 | 1980-09-17 | Spegelstein & Son Ltd S | Pivoted stays |
GB2162242A (en) * | 1984-06-07 | 1986-01-29 | Brian Rankin | Window stays |
GB2190425A (en) * | 1986-05-14 | 1987-11-18 | Robert Sanderson | Window security device |
-
1988
- 1988-04-09 GB GB8808374A patent/GB2217382A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB213094A (en) * | 1923-03-03 | 1924-03-27 | Arthur Illidge | Improvements in, or relating to, casement stays |
GB294312A (en) * | 1928-03-12 | 1928-07-26 | Thomas Franks | Improvements in casement stays |
GB901288A (en) * | 1959-12-17 | 1962-07-18 | James Wheeldon & Sons Ltd | Improvements in or relating to casement stays |
GB2042057A (en) * | 1979-02-19 | 1980-09-17 | Spegelstein & Son Ltd S | Pivoted stays |
GB2162242A (en) * | 1984-06-07 | 1986-01-29 | Brian Rankin | Window stays |
GB2190425A (en) * | 1986-05-14 | 1987-11-18 | Robert Sanderson | Window security device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2256005A (en) * | 1991-05-10 | 1992-11-25 | Baber M J & Co Ltd | Window stay. |
GB2256005B (en) * | 1991-05-10 | 1995-02-08 | Baber M J & Co Ltd | Improvements in or relating to a window stay |
Also Published As
Publication number | Publication date |
---|---|
GB8808374D0 (en) | 1988-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |