baber/WOPTO huggingface dataset:
Patent GB-1453625-A (GB)
Title: Polyamide imide resin and prepolymer therefor
IPC: C08J5/24
Filed: 1973-12-13
Abstract: 1453625 Laminating method TORAY INDUSTRIES Inc 13 Dec 1973 [18 Dec 1972] 57909/73 Heading B5N [Also in Divisions C3 and D1] Laminates are made by pressing prepregs at 200-400‹ C. and 1-200 kg. cm.<SP>2</SP>. The prepreg is a cloth or mat, of fibres of glass, C, asbestos, or polyamide, impregnated with a solution of a prepolymer, dried, and precured. The prepolymer has formula where X comprises 1-100 units T is an aromatic or heterocyclic group, D is an aromatic, heterocyclic or cycloaliphatic group, and R is a group containing a polymerizable unsaturated double-bond. T may be a C 6-20  benzenoid radical or a heterocyclic radical, at least 2 of the -CO- groups being attached in the ortho- or peripositions. D may be a C 6-20  benzenoid radical, a heterocyclic radical, or a cycloaliphatic radical of which 2 or 3 rings are joined directly or with a divalent radical being C 1-3  alkylene, O, S, and/or SO 2 . R may be a residue of maleic, citraconic, itaconic, chloromaleic, or dichloromaleic acid, or of a Diels- Alder adduct, e.g. tetrahydrophthalic, norborn- 5 - ene - 2,3 - dicarboxylic, methyl norborn - 5- ene - 2,3 - dicarboxylic, or chlorendic acid, or Diels-Alder adducts of these adducts. Part of the T(COOH) 3  component may be replaced by an aromatic dicarboxylic acid, or part of [T(COOH) 3 +D(NH 2 ) 2 ] may be replaced by an aromatic aminocarboxylic acid.
Patent GB-1315867-A (GB)
Title: Carburettors for internal combustion engines
IPC: F02M17/34
Filed: 1970-12-08
Abstract: 1315867 Spray carburetters SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 8 Dec 1970 [23 Dec 1969] 58174/ 70 Heading F1B In a carburetter combined with an air filter housing, a channel 9 connects a constant level fuel chamber 1 to a resonance space 8 and a diaphragm 17 having a fixed aperture 16 is located in an intake pipe 6, fuel being supplied from chamber 1 to a fuel jetting system 4 by the pressure difference between them. The size of aperture 16 is chosen to minimize pressure fluctuations in diamber 1 and may be substantially equal to that of the intake pipe adjacent to throttle 5. In another embodiment, Fig.2 (not shown), the connecting channel (9a) extends from chamber 1 to the intake pipe 6 upstream of aperture 16.
Patent GB-1364499-A (GB)
Title: Anchoring constructions for the reinforcement of pre-stressed concrete
IPC: E04C5/12
Filed: 1971-12-17
Abstract: 1364499 Clamps; prestressed concrete IBIS NEDERLAND NV 17 Dec 1971 [24 Dec 1970] 58838/71 Headings E1W and E2B A bundle 6 of reinforcing wires for concrete is anchored in a tapered bore 3 of a block 1 by driving a wedge 4 in the bore, one or more sliding pieces 7 being disposed between the bore wall and the wires so that as the wedge is driven in the sliding piece or pieces also move. In the embodiment shown a sliding piece 7 is used for each bundle 6 and a groove 8 locates each bundle, the groove being roughened by scratching. grooves, teeth or ridges or by the application of friction increasing granules to the sliding pieces. Connecting rings may be provided to connect the sliding pieces. In an alternative embodiment a single sliding piece is provided for all the bundles.
Patent GB-1374617-A (GB)
Title: Grinding machine and method and semiconductor formed thereby
IPC: B24D13/00
Filed: 1971-12-21
Abstract: 1374617 Grinding SONY CORP 21 Dec 1971 [21 Dec 1970] 59374/71 Heading B3D A machine for grinding a predetermined edge contour on a workpiece, such as a semiconductor wafer 1, Fig. 3, having a round portion la and a straight portion 1a<SP>1</SP>, comprises a chuck 17 for holding a workpiece, means to rotate the chuck, and a grinding head 15 comprising a plurality of resilient grinding devices 60 attached thereto, each of the devices having an oblique grinding surface facing the chuck. The machine is used to profile the edges of the wafer to the shape shown in Fig. 5 to compensate for the non-uniform growth on the edge of the wafer when an epitaxial layer is vapour-deposited over the surface of the wafer. The machine has a frame 6, Fig. 6, formed with an oil pan 7 connected by columns 9 to a panel 8. A plate 10 which performs a circular translatory movement is supported by supports 26 which are eccentrically mounted in rotatable mechanisms 20 driven by gearing 22, 42 from a motor 43. The eccentricity of the supports is variable from zero to a maximum. The plate 10 carries two rows of holding means 11 each consisting of an air or hydraulic cylinder 12 and a holder 13. The piston of the cylinder is connected to a rod 14 for movement up-anddown, the rod being prevented from rotating. The lower end of each rod is connected to a respective grinding device 15, each device consisting of a plurality of resilient strips 60, Fig. 13, for example, stainless steel. The strips are secured by screws 64 to a head 57 on the rod 14 and are bent outwardly at their lower ends 62. The ends 62 have a curved cross-section with electro-deposited abrasive on their lower surfaces. The degree of resiliency of the strips can be varied by vertical adjustment of a ring 65. Grinding fluid is supplied to the strips through a connector 71 and tube 58. Each grinding head is disposed above a vacuum chuck for holding a wafer 1, each chuck having a head 17 provided with a number of concentric grooves 17A, Fig. 12, and radial grooves in its upper surface connected by holes 17c and a chamber 17b. The head is carried at the upper end of a hollow shaft 47 which communicates with the chamber 17b and with a fiting 55 connected to a vacuum line. The shafts 47 of the vacuum chucks are mounted in bearings 45 in the oil pan 7 and rotated by gearing 49, 53. The wafers are loaded into the machine on a magazine 73 when the rods 14 are raised, the magazine having a plurality of recessed apertures for positioning the wafers 1 above the vacuum chuck when the magazine is supported on hydraulically-operated elevators 19 which can be lowered so that the magazine is lowered leaving the wafers on the chucks so as to be held thereon by the vacuum. The wafers are rotated by the chucks, and the plate 10, and hence the grinding devices 15, moved with a circular translatory movement by the mechanism 20 so that the abrasive coated strips 62 form the desired profile on the edges of the wafers 1.
Patent GB-1240359-A (GB)
Title: FLUORINATED beta-HALOALKYL ETHERS
Inventor: YAO CHARLES CHENG-YU
IPC: C07C43/12
Filed: 1968-12-18
Abstract: 1,240,359. Fluorinated ethers and alkoxides; diiodotetrafluoroethane. ALLIED CHEMICAL CORP. 18 Dec., 1968 [22 Dec., 1967], No. 60266/68. Addition to. I,165,912. Heading C2C. Fluorinated ethers of the general Formula (T) wherein each of the groups R, which may be the same or different, is a fluorine atom or a group of general formula -CFR<SP>1</SP> 2 , wherein each of the groups R<SP>1</SP>, which may be the same or different, is a chlorine or fluorine atom or an alkyl or haloalkyl group, or the groups R<SP>1</SP> together form an alkylene or haloalkylene group, with the proviso that at least one of'the groups R is a group of general formula-CFR<SP>1</SP> 2 ; and A is a group of general formula wherein each of the groups R<SP>2</SP>, which may be the same or different, is a hydrogen or chlorine atom or an alkyl group, eachof the groups R<SP>3</SP> and R<SP>4</SP>, whichmay be the same or different, is a hydrogen or fluorine atom, R<SP>5</SP> is a hydrogen, fluorine, chlorine or bromine atom ora perfluoroalkyl group, and p is an integer of 1 to 9, R<SP>3</SP> being a fluorine atom when R<SP>4</SP> and R<SP>5</SP> are both fluorine atoms; and E is a chlorine, bromine or iodine atom, are prepared by reacting a salt of general Formula (II) wherein R is as defined above, and M is a. silver, potassium, rubidium, caesium or tetraalkylammonium ion, with an olefin of general formula wherein R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP>, R<SP>5</SP> and p are as defined above, in the presence of a halogen which is chlorine, bromine or iodine or a diatomic interhalogen compound thereof, at a reaction pressure of at least 10 psig. The salt of Formula (II) is produced by reacting a fluorinated ketone or acyl fluoride of formula R-CO-R with a fluoride of formula MF, preferably in an inert liquid medium. The salt thus produced may be used without isolation in the process of the invention. Alternatively the production of the salt and the process of the invention may be conducted concurrently in the same medium. Examples, CF 2 I-CF 2 I is obtained as a byproduct when using CF 2 =CF 2  as the olefin and iodine as the halogen. Reference has been directed by the Comptroller to Specification 1,142,306.
Patent GB-1298954-A (GB)
Title: Electrical device and method of making same
IPC: H01H51/28
Filed: 1969-12-16
Abstract: 1298954 Electro-magnetic relays COMPAC ENG Inc 16 Dec 1969 [16 Dec 1968] 61340/69 Heading H1N An electrical device such as a relay has a rigid ceramic base and a "thermal plastic" member sealed thereto for establishing the environment of electrical conductive elements supported on the base. The reed relay shown has a ceramic base 11 recesses at 31, 32, 33, 34, 36, 37, 38 and 39 to accommodate reeds of which reeds 14, 15, 16 and 14<SP>1</SP>, 15<SP>1</SP>, 16<SP>1</SP> are magnetic and are manufactured as a single component which is severed at 45 during assembly of the relay. Reeds 18 and 18<SP>1</SP> are non-magnetic and form fixed contacts which are engaged by respective movable reed contacts 15<SP>1</SP> and 15 when the coil 19, surrounding the base 11 and "thermal plastic" member 12 is not energized. When the coil 19 is energized the reeds 15 and 15<SP>1</SP> engage fixed contacts 14<SP>1</SP> and 14 respectively. The contact cavity 10 formed between the base 11 and member 12 is divided by a partition 28 extending from the base to form two compartments 26, 27 each of which contains a changeover contact set and a respective coil connector 16<SP>1</SP>, 16. The "thermal plastic" may be thermoplastic or thermosetting.
Patent GB-1335856-A (GB)
Title: Electronic memory with fault detection
IPC: G06F11/00
Filed: 1970-12-30
Abstract: 1335856 Magnetic storage arrangements HONEYWELL INFORMATION SYSTEMS ITALIA SpA 30 Dec 1970 [30 Dec 1969] 61885/70 Heading H3B [Also in Division G4] The line selection circuitry of a core memory includes transistor switches at the ends of each line to pass drive current through a selected line. Each line is connected at one or both ends to a respective pair of oppositely-poled diodes, each connected to one of the switches. By detection of the presence or absence of drive current when the switches are selectively closed any faulty diode or switch can be identified since it results in incorrect current distribution in the lines. In the embodiments described the cores and diodes form an assembly ME, Fig. 5. Each line is connected to a respective source switch, e.g. 52, 58, 62, 68 and to a respective sink switch, e.g. 51, 57, 61, 67. During each of a sequence of test program modes the switches are selectively closed to control the direction of flow of drive current and the line in which the current flows. The switches are closed by the output of gates 203-206, 213-216 enabled by signals from decoders DX, DY fed by a sequence of address signals from register RA. The gates receive second inputs derived from clock pulse circuit CT and from a control unit CR which generates a sequence of words controlling normal memory operations and test program modes. The drive current is detected by a threshold unit SG whose output is fed to shift register RE. At the end of each test program mode the register will contain a word which indicates either a group of sink or source switches which includes a faulty switch, or a particular faulty switch, or a particular faulty diode, dependent upon the mode.
Patent GB-1277668-A (GB)
Title: Improved method of making glycidyl ethers
Inventor: BECKER WILHELM
IPC: C08G59/06
Filed: 1969-12-22
Abstract: 1277668 Glycidyl ethers REICHHOLD ALBERT-CHEMIE AG 22 Dec 1969 [8 Jan 1969 29 Oct 1969] 62199/69 Heading C3B [Also in Division C2] Glycidyl ethers of monohydric phenols are prepared by reacting the phenol with an excess of epichlorohydrin in the presence of 0À95-1À15 of an equivalent of alkali metal or alkaline earth metal hydroxide per equivalent of phenolic hydroxyl. The process comprises the following steps: (i) 10-90% of the alkali metal or alkaline earth metal hydroxide is added in the solid state in 30-90% of the total addition time which amounts to 30-300 minutes. Reaction heat is removed by reflux distillation under reduced pressure in the presence of water of reaction and added water of 0À3-6À0% by wt. based on the epichlorohydrin. (ii) 90-10% of the alkali metal or alkaline earth metal hydroxide is added in the remainder of the addition time; the reaction heat and water are removed by azeotropic distillation under reduced pressure and the water free phase containing epichlorohydrin is returned to the reaction vessel. (iii) Excess epichlorohydrin is distilled off under reduced pressure. The glycidyl ether formed is isolated by filtration or dissolution. The product is washed with water to separate alkali metal or alkaline earth metal chloride and the solvent (if any) is removed. The preferred hydroxide is NaOH. The reaction may be carried out in the presence of 3-25% of an aliphatic alcohol of limited solubility in water and/or 3-25% of aromatic solvents (based on the epichlorohydrin used). From 1-10% by wt., with respect to the glycidyl ether, of an aqueous (1-20% by wt.) H 2 O 2  soln. is made to flow into the liquid glycidyl ether at 100- 180‹ C. with stirring and at the same time excess H 2 O 2  and volatile constituents are removed by distillation. Examples relate to the preparation of glycidyl ethers of bisphenol A, bisphenol F and a mixed diglycidyl ether of bisphenol A, resorcinol and a phenol novolac.
Patent GB-1255380-A (GB)
Title: Electric switch
IPC: H01H23/12
Filed: 1969-12-30
Abstract: 1,255,380. Mechanical switches. EXECUTONE Inc. 30 Dec., 1969 [30 Dec., 1968], No. 63214/69. Heading H1N. In an electric switch a rocker 1 biased to alternative snap-over positions by a torsion or U spring 9 moving over centre between pivot points 3, 10, operates to close pairs of contact strips 6, 7, 8 on one or both sides.
Patent GB-2025483-A (GB)
Title: Sand drains
IPC: E02D3/10
Filed: 1978-07-07
Abstract: It has been shown that the coefficient of consolidation of ground strata produced by the use of sand drains may be significantly improved if the drains are of such transverse sectional shape that the perimeter of the section is greater than the circumference of a circle of equal area. Particularly advantageous are tri-lobal and cross-shaped sections. The drains may be formed by driving into the strata mandrels of corresponding transverse section and filling with sand the channels resulting from the subsequent withdrawal of the mandrels.
Patent GB-2026832-A (GB)
Title: Farrowing crate
IPC: A01K1/02
Filed: 1978-07-22
Abstract: A farrowing crate comprises a cage which is suspended within an assembly which comprises a surrounding channel or pen into which the litter fall after birth. A device is provided for on lifting the cage so that the floor 104 of the cage is elevated relative to the floor 56, 62 of the surrounding pen during the birth and for a short time afterwards to prevent the litter getting access to the sow or gilt. In this way mortality due to crushing or savaging of the litter which can occur particularly with gilts, is significantly reduced. The side walls of the cage are adjustable to accommodate different sized sows and gilts and the lifting mechanism may lift the cage relative to the surrounding pen or drop the pen relative to the cage.   Lamps 74, 76 are provided for heating selected regions of the pen to keep the litter warm and a false floor 62 is provided onto which the litter fall when initially born to break their fall. The false floor is preferably constructed from a cushioning material and is preferably removable to be replaced and/or cleaned. The wall 52 of the pen adjoining the entrance gate 118 to the cage may be removable or at least hingeable to give access to the cage. <IMAGE>
Patent GB-2004832-A (GB)
Title: Carton erecting apparatus
IPC: B31B50/76
Filed: 1978-09-18
Abstract: In a method of erecting a flat folded tubular carton blank, a wall portion of the blank is drawn and bowed between spaced support members by at least one suction cup to partially open the blank and to ensure trouble-free separation of the carton walls by setting-up member(s). In one embodiment, Fig. 2, a flat folded carton blank is conveyed to an erecting station where suction cups 35 pull the underside of the blank downwardly against a breaker bar 34 and conveyor belts 23 passing around rolls 23d to bow the underside downwardly pulling the leading and trailing ends of the blank toward each other and thus bowing the upper carton side upwardly. With the carton thus partially opened, overhead opening elements 42 rotate into engagement with a trailing side panel 13 thereof to swing it through 90 DEG . Overbreak elements 52 thereafter engage the trailing side panel and swing it through another 90 DEG . In another embodiment, Fig. 6, suction cups 85 bow a portion of a panel 10 between walls 81, 82 before the suction cups 85 move with said walls 81, 82 to draw the blank past a breaker bar 75 and deposit it on a conveyor 90 in erect condition. <IMAGE>
Patent GB-2031751-A (GB)
Title: Solids recycling in solvent extraction
IPC: B01D11/04
Filed: 1978-10-23
Abstract: In an extraction process for extracting values from a first stream into a substantially immiscible second stream using a multi-compartmental rotary contactor, unwanted solids formed in the contactor 12 and discharged at least partly with the first stream 14 are separated at 19 and re-entered into the contactor intermediate the points at which the streams are discharged. <IMAGE>
Patent GB-2039041-A (GB)
Title: Underwater ultrasonic imaging systems
IPC: G01S15/89
Filed: 1979-01-03
Abstract: In an active underwater ultrasonic imaging system in which the receiving element includes a piezoelectric area transducer arranged to generate a pattern of electrical charges in response to a pattern of ultrasonic radiation reflected from echo sources in an area of interest, the frequency of the ultrasonic radiation used to insonify the area is varied several times during a given period and reflections received by the transducer during that period are averaged to produce an image of the echo sources. Image degradation due to spurious fringe patterns or noise is thereby reduced.
Patent GB-2014648-A (GB)
Title: A Pump for Liquids
IPC: F04B1/113
Filed: 1979-01-18
Abstract: This invention relates to a pump e.g. for mounting in a petrol tank comprises a rotor 12 rotatable about a first axis and containing at least one bore 22 extending radially within the rotor 12 with respect to said first axis, a piston 24 slidably received in the bore 22 and a stroke member 29 associated with said piston 24 and constraining said piston 24 when the rotor 12 rotates about said first axis to orbit about a second axis parallel to said first axis so that said piston 24 reciprocates in said bore 22 through a stroke determined by the spacing between the first and second axis, said piston having coupled thereto a separately formed U-shaped member 26 whose limbs extend parallel to said axis, and said stroke member 29 including a crosshead 27 engaged by said member 26, said crosshead 27 having a pair of parallel oppositely presented faces co-operating respectively with said limbs of said member 26 and rotating in use about said second axis as said rotor 12 rotates, whereby when said rotor and said crosshead rotate about their respective axes the piston is caused to reciprocate in said bore, said U- shaped member 26 reciprocating across said surfaces of the crosshead 27 in a direction transverse to said axes. The stroke member 29 is movable to adjust the piston stroke. <IMAGE>
Patent GB-2021175-A (GB)
Title: Ground Anchor
IPC: E02D5/80
Filed: 1979-04-26
Abstract: The anchor which is suitable for location in semi-solid or particulate material has a body portion (10) to which pivotal vanes (15) are attached. The vanes (15) are arranged to lie in a first position adjacent the body portion (10) when the device is being driven into an anchoring region and to pivot outwardly in a direction away from the body portion (10) when the device has been caused to penetrate the anchoring region to a required extent. Outward pivoting of the vanes (15) may be effected by turning the anchor when it has penetrated into the anchoring region. When the vanes (15) lie in the first position the device presents a minimum area of resistance to penetration into the anchoring region, and when the vanes lie in the second position the device presents a maximum effective area of resistance to extraction of the anchor. <IMAGE>
Patent GB-2021619-A (GB)
Title: Monoazo dyes
IPC: C09B29/46
Filed: 1979-05-03
Abstract: formula:   <IMAGE> wherein R represents an alkyl, aralkyl or aryl radical and E represents the residue of a coupling component of the aminobenzene, aminonaphthalene, phenol, naphthol, pyrazolone, aminopyrazole, hydroxypyridine or indole series.     The dyes are applicable as acid dyes to natural and synthetic polyamide textiles.
Patent GB-2019007-A (GB)
Title: In-Line Pressure Sensor
IPC: G01L9/00
Filed: 1979-05-08
Abstract: Apparatus for sensing pressure in a pipe comprises a thick-walled pipe section having a cavity 3 defining at its bottom a relatively thin integral wall portion 4a, and a transducer 5 mounted in the cavity on portion 4a to produce electrical signals dependent on changes of strain in portion 4a due to changes in pressure within the pipe section. Portion 4a functions as a diaphragm. Preferably there are two such cavities which are similar and oppositely disposed and contain transducers connected in a bridge circuit so that pressure dependent signals are reinforced. The apparatus is more especially for use on compression-ignition engines. <IMAGE>
Patent GB-2051909-A (GB)
Title: Rigid flexure-resistant structural member and composite panel including same
IPC: E04C2/32
Filed: 1979-06-20
Abstract: The member comprises a sheet 10 in which are formed dome-like projections 12 of which at least the major portion of the configuration in plan view is circular, projections 12 being located in the plane of said sheet in a pattern which repeatedly blocks straight lines of vision across said sheet in all directions, the intermediate portion 16 of sheet 10 between projections 12 comprising arcuate continuous structural stress- resisting sections 14 extending between the opposite edges of said member. A flat sheet 20 of planar material may be affixed to the upper ends of projections 12. The perimeter of such a composite panel can be provided with an integral bracing flange 26 extending from the periphery of said member arid terminating in an outwardly extending lip 28 within a plane common to the upper ends of projections 12. Use: Access flooring. <IMAGE>