GB562032A - Holder for piezo-electric crystal - Google Patents

Holder for piezo-electric crystal

Info

Publication number
GB562032A
GB562032A GB15885/42A GB1588542A GB562032A GB 562032 A GB562032 A GB 562032A GB 15885/42 A GB15885/42 A GB 15885/42A GB 1588542 A GB1588542 A GB 1588542A GB 562032 A GB562032 A GB 562032A
Authority
GB
United Kingdom
Prior art keywords
pin
crystal
box
piezo
parts
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
GB15885/42A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
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 to BE466333D priority Critical patent/BE466333A/xx
Priority to LU28090D priority patent/LU28090A1/xx
Application filed by Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to US522583A priority patent/US2382366A/en
Publication of GB562032A publication Critical patent/GB562032A/en
Priority to FR912729D priority patent/FR912729A/en
Priority to CH270477D priority patent/CH270477A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
    • C08G12/36—Ureas; Thioureas
    • C08G12/38—Ureas; Thioureas and melamines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/46—Block or graft polymers prepared by polycondensation of aldehydes or ketones on to macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G16/00—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00
    • C08G16/02—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes
    • C08G16/0293—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with natural products, oils, bitumens, residues
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/6112—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by clamping, e.g. friction, means on lateral surfaces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
    • E04B1/6125—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface
    • E04B1/6137—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface the connection made by formlocking
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/09—Elastic or damping supports

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Measuring Fluid Pressure (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

562,032. Piezo-electric crystal holders. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and COCKERELL, C. S. Nov. 10, 1942, No. 15885. [Class 40 (v)] A holder for a piezo-electric crystal comprises an insulating box having a removable lid l and bottom cover bc. A crystal plate cr rests on a lower pin lpi of the form shown in Fig. 7. The pin is inserted in opposite holes in the side walls of the box, lateral movement being prevented by the engagement of a pin pi in one side wall engaging a groove 8 in the pin lpi. Raised parts 3 and 5 of the pin engage the crystal at the points along a nodal line, while a part 10 extends from the casing and serves as a connecting tag. An upper pin upi of the form shown in Fig. 8 is guided in slots sl in the box walls and rests on the upper face of the crystal, so that raised parts III and V engage the crystal at points opposite to the parts 3 and 5 of the lower pin. A hairpin spring hps has its free ends inserted in holes sc in an end wall of the box, while its limbs rest on the parts II, VI of the upper pin. Closing the lid l bends the hairpin spring down so as to exert pressure on the upper pin upi, and the end of the hairpin spring engages a washer mw on a terminal screw scr. The bottom cover mav now be removed to check the exact position of the crystal by means of a gauge, Fig. 10 (not shown). The cover is replaced and all joints and orifices closed with a sealing compound.
GB15885/42A 1942-10-16 1942-11-10 Holder for piezo-electric crystal Expired GB562032A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE466333D BE466333A (en) 1942-10-16
LU28090D LU28090A1 (en) 1942-10-16
US522583A US2382366A (en) 1942-10-16 1944-02-16 Holder for piezoelectric crystals
FR912729D FR912729A (en) 1942-10-16 1945-07-24 Improvements in elements intended for use in the construction of buildings
CH270477D CH270477A (en) 1942-10-16 1946-07-26 Process for manufacturing building elements and building element obtained by the process.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB270477X 1942-10-16

Publications (1)

Publication Number Publication Date
GB562032A true GB562032A (en) 1944-06-15

Family

ID=10253304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15885/42A Expired GB562032A (en) 1942-10-16 1942-11-10 Holder for piezo-electric crystal

Country Status (1)

Country Link
GB (1) GB562032A (en)

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