FR372799A - Spring balancing device for window frames - Google Patents

Spring balancing device for window frames

Info

Publication number
FR372799A
FR372799A FR372799DA FR372799A FR 372799 A FR372799 A FR 372799A FR 372799D A FR372799D A FR 372799DA FR 372799 A FR372799 A FR 372799A
Authority
FR
France
Prior art keywords
balancing device
window frames
spring balancing
spring
frames
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
Other languages
French (fr)
Inventor
Samuel Henry Law
Albert Moritz
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 MORITZ
Original Assignee
ALBERT MORITZ
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 MORITZ filed Critical ALBERT MORITZ
Application granted granted Critical
Publication of FR372799A publication Critical patent/FR372799A/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
    • E05D13/1276—Counterbalance devices with springs with coiled ribbon springs, e.g. constant force springs
    • E05D13/1292—Spring safety devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR372799D 1906-07-17 1906-12-21 Spring balancing device for window frames Expired FR372799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US372799XA 1906-07-17 1906-07-17

Publications (1)

Publication Number Publication Date
FR372799A true FR372799A (en) 1907-04-18

Family

ID=1419548

Family Applications (1)

Application Number Title Priority Date Filing Date
FR372799D Expired FR372799A (en) 1906-07-17 1906-12-21 Spring balancing device for window frames

Country Status (1)

Country Link
FR (1) FR372799A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581423A (en) * 1946-05-03 1952-01-08 Star Products Company Spring sash balance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581423A (en) * 1946-05-03 1952-01-08 Star Products Company Spring sash balance

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