baber/WOPTO huggingface dataset:
Patent GB-1488932-A (GB)
Title: Sulpho-fluorination of synthetic resins
IPC: D06M101/16
Filed: 1975-01-16
Abstract: 1488932 Sulphofluorinating and oxidizing polymeric articles AIR PRODUCTS & CHEMICALS Inc 16 Jan 1975 [17 Jan 1974 (2) 19 Feb 1974] 49512/76 Divided out of 1488931 Addition to 1395949 Headings C3P and C3R [Also in Division B5] Shaped articles, particularly fibres, made of synthetic polymer material are treated with a gaseous mixture comprising 0À1 to 20% by volume of fluorine, 0À1 to 50% by volume of sulphur dioxide and no more than 21% by volume of oxygen. Preferably an inert carrier gas such as nitrogen is present. The treatment is for an hour or less. Sulphuryl fluoride-which is present in the reaction mixture-may be used instead of SO 2  with the same effects. Polymers treated in the examples are nylon 6, nylon 6,6, polyester, polypropylene, polyethylene, polyurethane and "Acrylan" (Registered Trade Mark). It is believed that the treatment results in some chain scission with carboxylate formation and the incorporation of -SO 2 F groups. Examples 13 and 14 disclose the treatment of polyethylene film.
Patent GB-1151972-A (GB)
Title: A Fixing Element for Glass Plates
IPC: E06B1/38
Filed: 1967-11-03
Abstract: 1,151,972. Clamps. HEERUM GELDSCHRANK UND TRESORBAU G.m.b.H. 3 Nov., 1967 [10 May, 1967], No. 49972/67. Heading E2B. A clamp, e.g. for two panes of glass 16, comprises a U-shaped frame 1 and a deformable element 3, the latter being compressible by means of a nut and bolt 8-10 so as to clamp each pane between the element and a respective resilient pad 15. The frame comprises two spaced parallel U-shaped members (only one shown) connected by struts 5 and 6. The struts 5 carry the pads 15. Strut 6 carries the nut and bolt. The element 3 comprises two rubber blocks 14, having profiled clamping faces 12. U-shaped clamping pieces 11 and 13 partially embrace the respective blocks.
Patent GB-1375726-A (GB)
IPC: F15B1/027
Filed: 1971-10-28
Abstract: 1375726 Controlling accumulator installations GREER HYDRAULICS Inc 28 Oct 1971 [28 Oct 1970] 50249/71 Heading F1P [Also in Division F2] A valve block G whicn controls fluid-flow to and from an accumulator Sp has connections P, T for attachment respectively to an hydraulic installation and a reservoir and has valves for selectively communicating the accumulator with the installation and reservoir. A stop valve V 1  and non-return valve S are located between the accumulator Sp and installation connection P, and a stop valve V 2 , a solenoid operated valve EV and a pressure relief valve D are connected in parallel between the accumulator Sp and reservoir connection T. If the valve V 1  is closed it cuts off the accumulator from the installation and valve V 2  can be opened to drain the accumulator to the reservoir. If the installion supply ceases or there is an electrical cut-out then valve EV drains the accumulator, and if there is an excessive build up in the pressure of the system, valve D opens to connect the accumulator to the reservoir. The  precise construction of the valve block G is shown in Fig. 2 (not shown).
Patent GB-1308341-A (GB)
Title: Sensing instrument having a cantilevered proof mass
IPC: G01P15/125
Filed: 1970-10-22
Abstract: 1308341 Measuring acceleration electrically NORTH AMERICAN ROCKWELL Corp 22 Oct 1970 [23 Oct 1969] 50326/70 Heading G1N An accelerometer comprises a proof mass 1 including a disc member 4 cantilevered at part of its periphery from an annular member 3 surrounding the disc member, the annular member being clamped between two stators 12-19, part of the periphery of the annular member being tapered from two points on the periphery of the annular member towards the point on the periphery of the annular member from which the disc member is cantilevered, whereby the tapered part can flex between the stators and provides a second cantilever extending from a line 20 through the said two points and pick-off capacitors formed by plates 5 and 6 and stator rings 12, 13. The tapering of the proof mass is effected by chemical etching. The accelerometer is otherwise generally similar to that described in Specification 1070614 (see Division G1) to which reference is made.
Patent GB-1115184-A (GB)
Title: Aqueous electrophotographic coating composition
IPC: G03G5/14
Filed: 1965-06-01
Abstract: 1,115,184. Electrophotography. MEAD CORPORATION. 1 June, 1965 [1 June, 1964], No. 50605/67. Divided out of 1,115,183. Heading H1K. The disclosure of the Specification is contained in Specification 1,115,183, but the claims relate to an aqueous electrophotographic coating composition comprising a copolymer of an ethylenically unsaturated monomer with an ethylenically unsaturated carboxylic acid, ZnO, a volatilizable alkali and a volatilizable watermiscible solvent for the binder.
Patent GB-1159039-A (GB)
Title: Cyclopentadione Derivatives and processes for the production thereof
Inventor: ASHURST PHILLIP ROY
IPC: C07C59/42
Filed: 1965-11-29
Abstract: 1,159,039. Cyclopentadione derivatives. BREWING PATENTS Ltd. 28 Nov., 1966 [29 Nov., 1965], No. 50635/65. Heading C2C. [Also in Division C5] The invention comprises cyclopentadione derivatives of the formula in which R<SP>2</SP> and R<SP>3</SP> denote hydrogen atoms, or alkyl groups of 1-3 carbon atoms, R<SP>5</SP> denotes an alkyl group of 1-4 carbon atoms and R<SP>6</SP> denotes an alkyl or alkenyl group of 1-6 carbon atoms. The compounds are obtained by alkylating or alkenylating compounds of the formula which may be obtained by hydrolysis of the corresponding acyl compounds. The products yield isohumulone, isocohumulone, isoadhumulone and like products of the formula when treated with a suspension of a mercuric salt under acid conditions, and these last products are useful in the embittering of beer. Examples are given. The preparation of intermediates for the process is described, as follows #-Ketoesters of the formula in which R<SP>7</SP> denotes a hydrogen atom or a carboxylic acyl group and Alk denotes an alkyl group of 1-4 carbon atoms, from which compounds of Formula (II) above are obtainable by ring closure, are themselves obtainable by condensing a #-ketoester of the formula R<SP>5</SP>-CO-CH 2 -CO-OAlk with a substituted lactic acid halide of the formula in which Hal denotes a chlorine or bromine atom, in the presence of magnesium or a magnesium alkoxide. Substituted lactic acids from which the halides of Formula (V) above are obtainable, are prepared by the reaction of an appropriately substituted pyruvic acid or alkyl pyruvate with a hydrocarbon of the formula R<SP>2</SP>R<SP>3</SP>C = CH-C#CH in the form of its alkali-metal or Grignard derivative, followed by hydrolysis of the product. #-Ketoesters of the formula are obtained analogously to the #-ketoesters described above. Substituted lactic acid halides of the formula are obtained from the corresponding acids analogously to the substituted lactic acids described above. The preparation of certain acetylenic hydrocarbons is also described (see Division C5).
Patent GB-1457959-A (GB)
Title: Dyestuff preparations for dyeing or printing natural or synthetic polyamide fibre materials
IPC: D06P3/06
Filed: 1974-11-25
Abstract: 1457959 Dyestuff compositions HOECHST AG 25 Nov 1974 [24 Nov 1973] 50977/74 Heading D1B Water soluble dyestuff preparations used to produce deep blue shades on natural e.g. wool, silk or leather, and synthetic polyamides comprise 10 to 99.5 percent by weight of one or more dyestuffs of the general formula wherein each X is hydroxy, methyl, ethyl, methoxy or ethoxy and Y is H or methyl, and 0.5 to 90.0 percent by weight of one or more auxiliary compounds selected from polyglycols having an average M.W. of 3000-20000, polyglycol ethers of fatty alcohols and fatty acid amides containing one or more hydroxyl groups, the alcohols and amides having from 8 to 20 C atoms and the ethers 15 to 30 ether groups, alkylbenzene-phenyl ether disulphonates and dialkylnaphthalene sulphonates the alkyl groups having 1 to 6 C atoms and methyl taurides and isethionates of saturated and unsaturated fatty acids having 8 to 20 carbon atoms. Additional adjuvants include extenders anti-dusting agents and anti-foaming agents. The preparations may be in the form of aqueous solutions, dyeing or padding liquors or print paste.
Patent GB-1419580-A (GB)
Title: Multiple circuit board connector
IPC: H01R12/72
Filed: 1973-11-02
Abstract: 1419580 Edge connector XEROX CORP 2 Nov 1973 [3 Nov 1972] 50978/73 Heading H2E An edge connector for printed circuit board (12, Fig. 1, not shown) comprises two plastics blocks; the first 18 with closed-ended groove 14 for board entry being bordered with compartments 22, 24, one of each opposing pair having a wall slotted 52 through to groove 14; and rear block (20, Figs. 1, 3, 4, not shown) bearing fixing lugs 30 and located on block 18 by studs and recesses (Fig. 3, not shown), carrying two rows of staggered apertures 44 aligned in each row with alternate compartments 22, 24, the remaining compartments in block 18 remaining empty. Each aperture and corresponding compartment carries a bifurcated spring leaf contact 34 as in Fig. 5 (a staggered section on 5-5), the flat shanks 36 lying in apertures 44 to receive conventional crimped connectors (46) on wires (58, Fig. 6, not shown) shielded by the lower aperture walls. The upper part of each contact comprises blades with bent part 42 and straight 40 lying in a compartment 22 or 24; the bent part protrudes into groove 14 through slot 52 to press on the edge contact of the board, while the straight part 40 remains in the compartment. Apertures are pitched at 0À3 inches, contact force is 50 g.m.f. per contact pair.
Patent GB-1464049-A (GB)
Title: Separating and filtering device
IPC: B04B5/02
Filed: 1974-11-27
Abstract: 1464049 Blood sample separation device B E AHLSTRAND and R H CARLSSON 27 Nov 1974 [27 Nov 1973] 51294/74 Heading G1B [Also in Division B1] A device for use in separating a sample from blood which has been allowed to settle and/or centrifuged in tube 10, comprises a hollow piston 11 having sealing lips 13, 14 and slots 16 in wall 15. In use, on downward movement of piston 11, e.g. by detachable piston-rod 19, in tube 10, lip 13 flexes so that liquid passes upwardly past lip 13 and then through the slots 16. The lips act as scrapers. The piston may comprise a collection container (20) Fig. 2 (not shown) above lip 14 for collecting liquid passing through slots 16. The container (20) may be provided with peripheral or longitudinal ribs on its outer surface to guide its movement into tube 10, and a flange at one end to limit the depth of insertion of piston 11 into tube 10. The slots may widen in the direction of liquid flow.
Patent GB-1481184-A (GB)
Title: Integrated circuits
IPC: H01L21/331
Filed: 1974-11-27
Abstract: 1481184 Semi-conductor devices SIEMENS AG 27 Nov 1974 [20 Dec 1973] 51302/74 Heading H1K An integrated circuit formed in a monocrystalline semi-conductor layer 12 on an electrically insulating substrate 1 comprises a bipolar transistor and a MOSFET arranged so that the base 71 of the bipolar transistor serves as the drain zone of the MOSFET. The layer 12 is preferably of Si and the substrate 1 is of sapphire or spinel. As shown, the MOSFET has an N+ source 91 and a P-type channel zone 81 with a SiO 2  gate insulator 3. The bipolar transistor has a P+ emitter 61, an N-type base 71 and a Schottky contact 7 forming the collector. In another arrangement (Fig. 3, not shown) the base zone additionally serves as the channel zone of the MOSFET.
Patent GB-1246103-A (GB)
Title: Reciprocating blade slasher
IPC: B26D1/08
Filed: 1968-10-31
Abstract: 1,246,103. Cutting wood. BELOIT CORP. 31 Oct., 1968 [12 Feb., 1968], No. 51731/68. Heading B5L. [Also in Division B8]  A slasher for logs comprises a flat blade member 56 with a downwardly directed knife-edge 58a secured at its sides to cylinders 52, 54 slidably mounted on the pistons of a pair of piston-rods 32, 34 affixed to a support 30, the arrangement being such that when fluid is introduced into the cylinders 52, 54 below the pistons the blade is forced downwardly to coact with a fixed blade member 64 to cut the logs. As described, the rods 32, 34 have axial bores through which fluid is introduced into the cylinders above or below the pistons from hoses 50 or 44 to raise or lower the blade member 56. The blade member 56 is detachably secured to the cylinders 52, 54 so that it may be inverted to bring a second knife-edge 58b thereof into the operative position. The logs are fed to the slasher by a clamp mechanism reciprocated towards and away from the slasher by a chain, or by an articulated boom and grapple.
Patent GB-1247747-A (GB)
Title: A process for the production of dyed crimped yarns
Inventor: SCHERZBERG HERBERT
IPC: D04B1/22
Filed: 1969-10-22
Abstract: 1,247,747. Elastic yarns. FARBENFABRIKEN BAYER A.G. 22 Oct., 1969 [29 Nov., 1968], No. 51743/69. Headings D1F and D1W. A spun yarn of synthetic continuous filaments is crimped in a process comprising knitting the yarn into a tubular structure, which is dyed and unravelled, the resultant yarn being then stretched and false-twist crimped. The process is stated to be suitable for producing elastic yarns from filaments of polyester, polyamide, or polyacrilonitrile.
Patent GB-1364708-A (GB)
Title: Shut off valve arrangements in powerassisted steering vehicle systems
IPC: B62D5/06
Filed: 1971-11-08
Abstract: 1364708 Power-assisted steering DAIMLER-BENZ AG 8 Nov 1971 [14 Nov 1970] 51812/71 Heading B7H A fluid pressure actuating cylinder in a powerassisted steering system for a vehicle includes valves 33, 34 arranged to open communication between chambers (15) (Fig. 1, not shown), 16 at opposite sides of a working piston (11), (Fig. 1), when the piston approaches either end position, one valve being actuated at one end of the piston stroke arid the other at the opposite end by a cam surface 55, 60, 56 formed on the steering arm shaft 14. Each valve opens into chamber 16 and includes a bush 40 or 41 with radial through bores 44 or 45 and a spring-loaded slide 38 or 39 having longitudinal peripheral grooves 42 or 43 and a control edge 48 or 49. The bases 44 or 45 communicate with annular cavities in each valve chamber 31 or 32, the cavities being interconnected by a conduit 30 which also connects with a chamber 25 of a control valve 20 in constant communication with chamber (15) of the actuating cylinder. The valves 33, 34 are circumferentially displaced relative to shaft 14 so that towards one end position of the piston (11) the portion 56 of the cam surface allows valve 34 to open and fluid passes from chamber 16 via grooves 43, bores 45, chamber 32 and chamber 25 to the other side of the piston. At the opposite end of the piston stroke valve 33 is actuated by cam portion 55. Means may be provided to prevent the shut-off slides being accidentally removed (Fig. 4, not shown).
Patent GB-1169216-A (GB)
Title: Lubricant Compositions
Inventor: VOORT HENRICUS GEORGIUS PETER
IPC: C08G65/44
Filed: 1966-11-18
Abstract: 1,169,216. Lubricants. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 16 Nov., 1967 [18 Nov., 1966], No. 51844/66. Heading C5F. Lubricating oils and greases comprise a major proportion of a mineral oil and a minor proportion of a polymer of formula where the A groups are benzene nuclei, the X groups are monovalent substituents, the Y groups are metal-free bivalent radicals separating the benzene nuclei by one atom with the proviso that when Y is hydrocarbon it contains at least two carbon atoms, n is 0 or 1 and m#8. Examples of X are hydrogen, halogen, alkyl, aryl, alkaryl, -OH, -OR, -COOR, -CHO, -COR, -NH 2 , -NHR, -NR 1 R 2 , -CONH 2 , -NO 2 , -CN, -SH, -SR, --SO 3 H and -PO 3 H 2  where R, R 1  and R 2  are hydrocarbon radicals. Examples of Y are alkylene, aralkylene, -O-, -CO-, -NH-, -NR-, -S-, -SO-, -SO 2  and where R is a hydrocarbon radical. Many examples of polyphenylene polyethers are given.
Patent GB-1366729-A (GB)
IPC: G02F1/1345
Filed: 1972-11-10
Abstract: 1366729 Matrix displays OPTEL CORP 10 Nov 1972 [16 Nov 1971] 52112/72 Heading G5C [Also in Divisions G3 and H4] Display apparatus comprises liquid crystal material between a common electrode 27 and a plurality of electrodes 17 connected to a multivibrator or inverter circuit which provides bidirectional current through the liquid crystal material. An integrated circuit chip 51 contains decoding and computer logic 53, and a multivibrator driver circuit 55, including transistors 56, 57. The multivibrator is driven by a clock oscillator 81 and produces equal and opposite pulse trains on leads 71, 72. These are applied to selected electrodes via F.E.T. switches 73 ... 79 controlled by the logic circuitry. In another embodiment clock pulses may be generated in the logic circuitry. The apparatus is used in wrist watches and portable computers.
Patent GB-1499320-A (GB)
Title: Apparatus for the automatic control of magnetic tape
IPC: G11B15/68
Filed: 1974-12-03
Abstract: 1499320 Selective tape cassette players A W BUTLER 2 March 1976 [3 Dec 1974] 52157/74 Heading G5R Apparatus for reproducing a selected one of a number of tape cassettes 3 includes a reproducing station 1 positioned within an annular, rotary cassette magazine 2; the arrangement being such that magazine 2 is rotated about its axis 9 by a motor 12 to the selected position, determined by studs 17 on the magazine which successively engage a switch 18, whereupon a stop 31 is engaged between a pair of the studs 17 to lock the magazine and a loader 36-39 is actuated to move the selected cassette inwardly to the reproducing station 1. Suitably disposed limit switches 32, 34; 42 and the switch 18 are incorporated into control circuitry Fig. 2 (not shown) for providing automatically the sequence of operations required to select a cassette. The magazine 2 is supported on wheels 6 and driving wheel 14, and on bearings 10, and has guides 4, 5 for each cassette which are partly flexible and must be moved apart to insert or withdraw a cassette vertically.
Patent GB-1204770-A (GB)
Title: Improvements in proximity control apparatus
IPC: E03C1/05
Filed: 1968-11-04
Abstract: 1,204,770. Proximity sensors. AMERICAN STANDARD Inc. Nov.4, 1968 [Nov.17, 1967], No.52175/68. Heading G1N. In a basin or like plumbing fixture including a capacitive proximity sensor or primary antenna A, B, C, an earthed conductive coating is applied to the underside of the basin 14 so that the sensor is rendered insensitive to the water level in the basin and a secondary antenna 24 is attached to the forward, external wall of the basin so that the sensor is unaffected by casual passers-by. Fig.3 (not shown) gives circuit details including an oscillator.
Patent GB-1486849-A (GB)
Title: Process for producing a laminate containing oriented nylon film
IPC: B29C47/06
Filed: 1975-12-22
Abstract: 1486849 Laminated films W R GRACE & CO 22 Dec 1975 [23 Dee 1974] 52449/75 Headings B5N and B5B A process for producing a laminate of polymeric films comprises: (a) forming a laminate by co-extruding a film of a nylon having a second order transition temperature of below 150 F. and optionally being in the form of a plurality of contiguous layers of nylon with an adjacent substantially water-impermeable layer or layers of at least one other kind of polymer which is orientatable at a temperature below 150 F. into laminar relationship with one or both of the main surfaces of the nylon film, (b) quenching the extruded laminate to a temperature below the second order transition temperature of the nylon and (c) heating the laminate to a temperature above the second order transition temperature of the nylon and at which the adjacent layer or layers are orientatable, but below 150 F. and stretching the laminate while so heated, to orient the nylon and said other polymer, the process up to the beginning of step (c) being carried out so as to protect the nylon film from substantial contact with water. The nylon may be a polyamide, e.g. nylon-6 or a co-, homo-, block or graft polyamide, the other polymer being preferably polyethylene or an ethylenevinyl acetate copolymer. In the method described with reference to Figs. 1 and 2, nylon from extruder A and olefin polymers from extruders B and C are fed to annular co-extrusion die 1, the inner ply coming from extruder B, the central ply from extruder A and the outer ply from extruder C. A tubular laminate 4 emerging from die 1 is cooled by cooling ring 5 and collapsed between pinch rollers 6 in cooling bath 7 to form flattened tubing 9 which is fed across guide rolls 8 and wound on roll 10, no water having contacted the nylon film thus far in the process. The roll of flattened tubing 10 is then unwound and fed through pinch rolls 12 into heated bath 13, thence over guide roll 14 and through pinch rolls 15 where it is expanded into bubble 16 by the trapped bubble technique, the resultant stretched laminate passing over roll 18 to wind-up roll 19. In an alternative procedure, the laminate made by co-extrusion through a slot die with the nylon layer sandwiched between two adjacent layers, stretch orientation being effected uniaxially by racking. Example I describes the manufacture of a sixply laminate comprising layers of polyethylene, an ionomeric ethylene copolymer, nylon, nylon, an ionomeric ethylene copolymer and polyethylene.
Patent GB-1484579-A (GB)
Title: Biological staining technique and mixture thereof
IPC: G01N33/00
Filed: 1974-12-04
Abstract: 1484579 Spectrographic analysis BLOCK ENG Inc 4 Dec 1974 [19 Dec 1973] 52454/74 Heading G2J Chemical species e.g. R.N.A. and D.N.A. are determined by staining them with a mixture of at least two chemically compatible dyes having differing binding energies for the various species and measuring the relative spectral intensities of at least two different wavebands. The dyes may be fluorochromes excited by U.V. light or an absorbtion method may be used. Acronol phloxine with either berberine sulphate or astrazone orange are suggested mixtures.
Patent GB-1098532-A (GB)
Title: Improvements in or relating to cupboards having blinds or shutters as closures
Inventor: BROWN PETER FREDERICK
IPC: E06B9/11
Filed: 1965-12-10
Abstract: 1,098,532. Cabinets. :F. C. BROWN (STEEL EQUIPMENT) Ltd. Dec. 7, 1966 [Dec. 10. 1965], No. 52497/65. Heading A4B. [Also in Division E2] A cupboard is closed by a roller blind (1) which is spring biased to a rolled-up condition and which is releasably retained in the down position by a latch 30 operable by a foot pedal 19. The pedal 19 is secured by bolts 20 to a lever 13 pivoted at 14 to and behind a front wall 7 of a bottom cross member (6) of the cupboard. The bolts 20 extend through clearance holes 21 in the wall 7. The lever 13 carries an arm 24 which bears on a flange 29 of a pivoted latch plate 25 to which the latch 30 is rigidly secured. A spring 34 biases the latch 30 to an upright position of engagement with a recessed plate (3) at the lower end of the blind (1). Depression of the foot pedal 19 pivots the latch 30 to a release position. The bolt 37 of a key operated lock 38 is engageable in a gap, 36 between flanges 35 on the latch plate 25 to prevent pivoting of the plate 25 and latch 30 to a release position.
Patent GB-1272459-A (GB)
Title: Medical patient's gown
Inventor: KELTNER RAYMOND ORVILLE
IPC: A41D13/12
Filed: 1969-10-30
Abstract: 1,272,459. Medical gowns. R. O. KELTNER. 30 Oct., 1969, No. 53101/69. Heading A3V. A medical patient's gown made from a single sheet of cloth or paper fabric, Fig. 1, comprises a robe front 40, 44 and a robe back 42, 46, each having two shoulder straps 48, 50 which are connected to the straps of the other part by releasable pressure-sensitive fastening means 52. Side slits 26 and 10, 12 extend from the lower edge 14 to terminal points 28, 30. The side 32 of the gown is permanently closed from the point 28 to the respective armhole 34, whilst the other side is releasably fastened by pressure-sensitive fastening means 58.