GB517521A - Improvements in apparatus for coupling and releasing gas lamps from their supply pipes when in inaccessible positions - Google Patents

Improvements in apparatus for coupling and releasing gas lamps from their supply pipes when in inaccessible positions

Info

Publication number
GB517521A
GB517521A GB2148838A GB2148838A GB517521A GB 517521 A GB517521 A GB 517521A GB 2148838 A GB2148838 A GB 2148838A GB 2148838 A GB2148838 A GB 2148838A GB 517521 A GB517521 A GB 517521A
Authority
GB
United Kingdom
Prior art keywords
fitting
projections
pipe
slingsby
gas
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
GB2148838A
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.)
WALTER NORMAN SLINGSBY
WALTER SLINGSBY AND Co LT
Original Assignee
WALTER NORMAN SLINGSBY
WALTER SLINGSBY AND Co LT
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 WALTER NORMAN SLINGSBY, WALTER SLINGSBY AND Co LT filed Critical WALTER NORMAN SLINGSBY
Priority to GB2148838A priority Critical patent/GB517521A/en
Publication of GB517521A publication Critical patent/GB517521A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

Abstract

517,521. Pipe couplings. SLINGSBY & CO., Ltd., W., SLINGSBY, W., SLINGSBY, W. N. and SLINGSBY, T. J. L. July 20, 1938, No. 21488. [Class 99 (i)] [Also in Groups XI and XXIX] In a detachable coupling for mounting a gas lamp fitting 2 on an inaccessible gas supply member 5 the gas pipes 3, 4 on the fitting and member are sealed by a liquid when the lamp is in its operative position and means are provided to prevent the escape of gas when the parts are separated. In the construction shown, on the cord 7, which passes around pulleys 2a, 2b on the lamp fitting, being pulled the lamp fitting is raised to cause mercury contained in a cup 2d on the lamp fitting to surround the lower edge of the pipe 4 and to lift a plug 9 closing the top of the pipe 4 out of a liquid seal cup 5a on the member 5. Gas can then pass to the fitting 2 through apertures 3b in the pipe 3. The fitting is supported in the raised position by projections 10a on a ball 10 carried by the member 5 engaging recesses 11a in a member 11 rotatable on the fitting. As the fitting is raised the projections 10a engage triangular projections 11f on the member 11 and the member 11 turns to allow the projections 10a to enter gap 11e between the projections 11f. The member 11 is further rotated when the projections 10a engage inclined surfaces 11g. When the fitting is lowered the projections 10a engage in the recesses 11a. When the fitting is again raised the member 11 is similarly turned to bring the gaps 11e opposite the projections 10a and the fitting can then be lowered to an accessible position. To ensure all the projections 10a engaging on similarly inclined sides of the projection 11f one of the projections 11f is slightly higher than the others. The member 8 to which one end of the cord 7 is attached and which carries a pulley 8a from which the cord is led to a securing post is adjustable angularly on the member 10. In a modification the plug 9 and sealing cup 5a are replaced by a ball valve which is displaced from its seating in the member 5 by an apertured member at the top of the pipe 3. Ribs are provided inside the member 5 to limit the displacement of the ball valve.
GB2148838A 1938-07-20 1938-07-20 Improvements in apparatus for coupling and releasing gas lamps from their supply pipes when in inaccessible positions Expired GB517521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2148838A GB517521A (en) 1938-07-20 1938-07-20 Improvements in apparatus for coupling and releasing gas lamps from their supply pipes when in inaccessible positions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2148838A GB517521A (en) 1938-07-20 1938-07-20 Improvements in apparatus for coupling and releasing gas lamps from their supply pipes when in inaccessible positions

Publications (1)

Publication Number Publication Date
GB517521A true GB517521A (en) 1940-02-01

Family

ID=10163786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2148838A Expired GB517521A (en) 1938-07-20 1938-07-20 Improvements in apparatus for coupling and releasing gas lamps from their supply pipes when in inaccessible positions

Country Status (1)

Country Link
GB (1) GB517521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923515A (en) * 1956-01-03 1960-02-02 Thompson Electric Company Lowering hanger with mechanical advantage
US4418882A (en) * 1981-10-15 1983-12-06 Waring Helen W Variable height rod supporter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923515A (en) * 1956-01-03 1960-02-02 Thompson Electric Company Lowering hanger with mechanical advantage
US4418882A (en) * 1981-10-15 1983-12-06 Waring Helen W Variable height rod supporter

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