GB1027923A - Improvements in or relating to locks, in particular valve spring retainer locks - Google Patents

Improvements in or relating to locks, in particular valve spring retainer locks

Info

Publication number
GB1027923A
GB1027923A GB3391164A GB3391164A GB1027923A GB 1027923 A GB1027923 A GB 1027923A GB 3391164 A GB3391164 A GB 3391164A GB 3391164 A GB3391164 A GB 3391164A GB 1027923 A GB1027923 A GB 1027923A
Authority
GB
United Kingdom
Prior art keywords
lock
locks
bridge
joined
sheet
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
GB3391164A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
Thompson Ramo Wooldridge Inc
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
Priority claimed from US333484A external-priority patent/US3273856A/en
Priority claimed from US335731A external-priority patent/US3222770A/en
Application filed by Thompson Ramo Wooldridge Inc filed Critical Thompson Ramo Wooldridge Inc
Publication of GB1027923A publication Critical patent/GB1027923A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/10—Connecting springs to valve members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Springs (AREA)
  • Check Valves (AREA)

Abstract

1,027,923. Making cotters. THOMPSON RAMO WOOLDRIDGE Inc. Aug. 19, 1964 [Dec. 26, 1963; Jan. 6, 1964], No. 33911/64. Heading B3A. [Also in Division F2] The stem 15, Fig. 2, of an engine poppet valve has a lock groove 16 with a chamfered lower wall 16b, a tubular spring retainer 17 being connected thereto by a one-piece resilient lock. The lock is made from a metal sheet 26 (Fig. 3, not shown) having opposed base portions 29, 30 with parallel faces 27, 28, two angled top surfaces 31, 32 which merge into a bridge 35 via radii 33, 34; the underside of the bridge 35 is joined to the faces 27, 28 by ribs 36, 37. The sheet then has transverse slots punched therein after which it is crimped to form arcuate sections 49 (Fig. 7, not shown) joined by flat parts 50 beyond the slots 47. The sheet is severed along either side of the bridge to provide sheets 51, 52 which are cut to length and formed round a bending shoe into a lock, which, when the ends are joined, incorporates three to six longitudinal slots; the severing operation may take place during or after the bending operation. The locks may be formed from a metal sheet having the sectional shape of one lock only.
GB3391164A 1963-12-26 1964-08-19 Improvements in or relating to locks, in particular valve spring retainer locks Expired GB1027923A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US333484A US3273856A (en) 1963-12-26 1963-12-26 Valve stem retainer lock
US335731A US3222770A (en) 1964-01-06 1964-01-06 Method of making valve stem retainer locks

Publications (1)

Publication Number Publication Date
GB1027923A true GB1027923A (en) 1966-04-27

Family

ID=26988750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3391164A Expired GB1027923A (en) 1963-12-26 1964-08-19 Improvements in or relating to locks, in particular valve spring retainer locks

Country Status (2)

Country Link
DE (1) DE1700029B1 (en)
GB (1) GB1027923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186057A (en) * 1986-01-31 1987-08-05 Robert Anthony Furnivall Internal combustion engine valve assemblies

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4230227A1 (en) * 1992-09-10 1994-03-17 Porsche Ag Valve train for internal combustion engines

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB595696A (en) * 1945-05-02 1947-12-12 Alfred Henri Marius Louis Mart Improvements in or relating to couplings between a rod or stem and a surrounding coiled spring
US1393348A (en) * 1919-08-08 1921-10-11 Studebaker Corp Valve attachment
US1823009A (en) * 1929-10-11 1931-09-15 Glenn A Toaz Method of forming valve stem collars
US1965718A (en) * 1932-04-15 1934-07-10 William R Wiley Means for correlating a plurality of initially separate structural pieces
US2330091A (en) * 1940-06-14 1943-09-21 Thompson Prod Inc Valve spring retainer lock
DE1658545U (en) * 1951-08-25 1953-07-02 Grohe Armaturen Friedrich HANDLE FASTENING OF VALVE UPPER PARTS.
US2844134A (en) * 1954-11-15 1958-07-22 Thompson Prod Inc Valve spring retainer assembly
US3041715A (en) * 1958-04-18 1962-07-03 Thompson Ramo Wooldridge Inc Method of making valve spring retainer locks
DE1804561U (en) * 1958-12-27 1960-01-21 Grohe Armaturen Friedrich VALVE UPPER PART FOR SANITARY FITTINGS.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186057A (en) * 1986-01-31 1987-08-05 Robert Anthony Furnivall Internal combustion engine valve assemblies

Also Published As

Publication number Publication date
DE1700029B1 (en) 1970-06-04

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