GB812239A - Improvements in or relating to devices for balancing vertically movable structural elements - Google Patents

Improvements in or relating to devices for balancing vertically movable structural elements

Info

Publication number
GB812239A
GB812239A GB16131/57A GB1613157A GB812239A GB 812239 A GB812239 A GB 812239A GB 16131/57 A GB16131/57 A GB 16131/57A GB 1613157 A GB1613157 A GB 1613157A GB 812239 A GB812239 A GB 812239A
Authority
GB
United Kingdom
Prior art keywords
spring
nozzle
strip
helical spring
secured
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.)
Expired
Application number
GB16131/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALBERT PETER DE VRIES
Original Assignee
ALBERT PETER DE VRIES
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ALBERT PETER DE VRIES filed Critical ALBERT PETER DE VRIES
Publication of GB812239A publication Critical patent/GB812239A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

812,239. Spring balanced windows. VRIES, A. P. DE. May 21, 1957 [May 30, 1956], No. 16131/57. Class 20(3) [Also in Group XXX] A device for balancing a vertically movable structural element comprises a helical spring 3 having a nozzle 7 secured to one end thereof, and a twisted strip 8 extending through said nozzle, the end of the helical spring 3 remote from the nozzle being provided with an abutment 11 mounted so as to be immovable relative thereto and for so accommodating the end of the twisted strip located within the helical spring that said end is axially displaceable but not rotatable. The helical spring 3, located within a protective tube 1, is secured, at its upper end, to a nipple 2 fixed within the corresponding end of the tube 1, the lower end carrying the nozzle 7 which has a slot to slidingly receive the twisted strip 8. The latter has hinged thereto a transverse strip 9 for connection, e.g. by nails, or screws, 10 to a window sash 6. The upper end of the tube 1 is secured, e.g. by nails 4, to a jamb 5 of a fixed window frame. To enable the spring to be wound up stepby-step so that the vertical component of the force exerted by the nozzle 7 on the twisted strip 8 can be adjusted to balance the weight of the sash, and to enable the spring to be unwound a little, from time to time, during the balancing process, the nipple 2 is provided with an extension 12 into the flat abutment walls 11 of which the corresponding end of the strip 8 may be inserted whenever it is desired to prevent it from rotating, and the spring from relaxing. After the helical spring has been given the required bias, the strip 9 is secured by the nails 10, to the sash 6. Specification 384,534 is referred to.
GB16131/57A 1956-05-30 1957-05-21 Improvements in or relating to devices for balancing vertically movable structural elements Expired GB812239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL812239X 1956-05-30

Publications (1)

Publication Number Publication Date
GB812239A true GB812239A (en) 1959-04-22

Family

ID=19838738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16131/57A Expired GB812239A (en) 1956-05-30 1957-05-21 Improvements in or relating to devices for balancing vertically movable structural elements

Country Status (1)

Country Link
GB (1) GB812239A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7093392B2 (en) 2004-11-30 2006-08-22 Mighton Products, Limited Spring balance adjustment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7093392B2 (en) 2004-11-30 2006-08-22 Mighton Products, Limited Spring balance adjustment

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