GB445684A - Testing apparatus for fluid-tight casings - Google Patents

Testing apparatus for fluid-tight casings

Info

Publication number
GB445684A
GB445684A GB30430/35A GB3043035A GB445684A GB 445684 A GB445684 A GB 445684A GB 30430/35 A GB30430/35 A GB 30430/35A GB 3043035 A GB3043035 A GB 3043035A GB 445684 A GB445684 A GB 445684A
Authority
GB
United Kingdom
Prior art keywords
shaft
receptacle
liquid
diaphragm
air
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
GB30430/35A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB445684A publication Critical patent/GB445684A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/006—Testing apparatus for complete clockworks with regard to external influences or general good working
    • G04D7/007—Testing apparatus for complete clockworks with regard to external influences or general good working with regard to the sealing of the case
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

445,684. Testing hollow-ware for fluid-tightness. WILSDORF, H., 18, Rue du MarchÚ, Geneva. Nov. 4, 1935, No. 30430. Convention date, Nov. 10, 1934. [Class 106 (ii)] A transparent receptacle 1 adapted to contain a liquid is provided with supporting means for placing the article to be tested-a watch caseinto the liquid, and wherein means are provided for creating a vacuum above the liquid level in the receptacle whereby air bubbles from leaky cases may be observed. The receptacle is constituted by a glass cylinder 5 clamped between a ring 7 and a base 2 by means of screws 7b and suitable gaskets 6, 8 to secure tightness. The bottom of the receptacle is formed by a diaphragm 4 clamped between the base 2 and a frame 3. The diaphragm passes between discs 9, 10, the disc 9 carrying an annular rim 11 guided in the base 2 while a connecting rod 12 through slots 14 in which passes a shaft 15 is secured to the discs. To the shaft is keyed an eccentric 17 co-operating with rollers 18 mounted in the rod 12. The cover 7a carries a stuffing box through which passes a tube 23 at the bottom of which is a hook 21 on which the article is suspended. In use, the cover is removed and the article placed on the hook 21, the receptacle being filled with water when the parts are reassembled. The shaft 15 is now turned so that the diaphragm takes up the position shown in dotted lines, when if the case leaks, bubbles of air will rise through the liquid to the vacuum above. To prevent the diaphragm being inadvertently returned and water getting inside the case, the shaft 15 is locked by a locking pin 27 on a lever 26 being urged by a spring 28 against an eccentric 29 on the shaft. After the test, the tube 20 is moved upwards so that the hole 24 register with hole 25 in the stuffing box and hence with the atmosphere. The shaft is unlocked by retracting lever 26 by hand against the influence of the spring. A pump may evacuate a portion of the water in the vessel or the latter may be partly filled and an air pump used to exhaust the air above the liquid.
GB30430/35A 1934-11-10 1935-11-04 Testing apparatus for fluid-tight casings Expired GB445684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH445684X 1934-11-10

Publications (1)

Publication Number Publication Date
GB445684A true GB445684A (en) 1936-04-16

Family

ID=4515324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30430/35A Expired GB445684A (en) 1934-11-10 1935-11-04 Testing apparatus for fluid-tight casings

Country Status (1)

Country Link
GB (1) GB445684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745279A (en) * 1944-12-12 1956-05-15 Paul E Collins Pressure testing device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745279A (en) * 1944-12-12 1956-05-15 Paul E Collins Pressure testing device and method

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