baber/WOPTO huggingface dataset:
Patent GB-1139600-A (GB)
Title: Electrical protection system
Inventor: MCDONOUGH VINCENT THOMAS
IPC: G08B13/16
Filed: 1966-09-15
Abstract: 1,139,600. Burglar alarms. AMERICAN DISTRICT TELEGRAPH CO. 15 Sept., 1966, No. 41328/66. Heading G4N. [Also in Division H3] An intruder alarm, e.g. for detecting attacks on a vault or like structure comprises a microphone feeding a first amplifier, the output of which is divided into two channels, the outputs of which being combined at an integrator. The first channel carries low level signals whilst the second channel is provided with a threshold device responsive only to high level signals above a predetermined value. As shown, a plurality of piezo-electric microphones 20 are sealed in epoxy resin and are mounted on the internal surface of the vault. Their outputs are coupled by a transformer TF1 to an amplifier T1 tuned by transformer TF2 and capacitor C6 to the natural frequency of the microphones 20, the peaking curve being asymmetrical so that its higher frequency side embraces minor peaks in the microphone output. The output of TF2 is amplified at T2, the output of which is passed via a sensitivity control 27 and a further amplifier T3 to a voltage-doubling integrator C1, C11, R13, REC6, REC7 having a time constant of 15-25 minutes. A further output from TF3 is rectified at REC9 and feeds a threshold device comprising transistors T4, T5 which are arranged to pass only signals 25dB (adjustable at R14) above the usual alarm signal level. The output of the threshold device is passed via diode REC10 to the integrating capacitor C11. When the output of the integrator reaches a predetermined level, unijunction transistor T6 becomes conductive, energizing relay 35 which operates an audible or visible alarm. REC 8 provides temperature compensation. Power supplies.-A bridge rectifier 43 arranges the supply to the transistors to be independent of the polarity of the supply voltage at 41, 42. A Zener diode REC 5 protects the system from high voltage surges. REC 11 and a potential divider 36 are arranged so as to prevent spurious low-level triggering of transistor T6 due to supply voltage dips. The supply is smoothed at C3, C4; REC 12 preventing these capacitors discharging via the potential divider 36.
Patent GB-1397913-A (GB)
Title: Apparatus for growing epitaxial layers of semiconductor materials
IPC: C30B23/00
Filed: 1973-09-03
Abstract: 1397913 Epitaxial deposition of silicon MOSKOVSKY INSTITUT ELEKTRONNOI TEKHNIKI 3 Sept 1973 41381/73 Heading C1A Apparatus for growing epitaxial layers of semi-conductor materials comprises an evaporator which forms a vapour-gas mixture which is fed horizontally to a cooled metal reaction vessel containing at least one resistance heater in the form of two elongated plates of trapezoidal section connected at one end by a connection strap, the bases of the plates being parallel to the flow of gas mixture towards the connection strap and the side faces carrying wafers upon which the deposition is to take place, and a number of heat shields equal to the number of heaters arranged in close proximity to the heater plates and shaped so as to accommodate the latter, thereby reducing loss of heat by radiation from wafers carried upon their side faces upon which wafers an epitaxial layer of a semiconductor material is deposited from the vapourgas mixture. The wafers may be of silicon and the vapour-gas mixture may be of silicon tetrachloride and hydrogen. As shown (Fig. 1) such a mixture is delivered from an evaporator 1 to a conduit 4 into the water-cooled reactor 5. Current leads 7 provided with terminals 8 (Fig. 2) are secured to graphite resistance heaters 10 by graphite bolts 9 inside the reactor. Each heater is made up of two elongated plates 12 of trapezoidal cross-section, being wider at the bottom and connected at the end remote from the leads 7 by a connection strap 13. The heaters are arranged parallel to the flow of vapour-gas mixture. Silicon wafers 20 are placed on the side faces of the plates 12 and are supported on narrow ledges 19 at the bottom of the plates. Main heat shields 21 and additional heat shields 27 both of bifurate channel section are fitted into the reactor to screen heat radiated from the side faces 16 and 17 of the plates 12 comprising part of the heaters 10. Before operation, the reactor is hermetically sealed and blown with hydrogen while the wafers are subjected to preliminary heat treatment as the resistive heaters are energized. Then the SiCl 4 -H 2  mixture is fed in and silicon deposited epitaxially on the wafers.
Patent GB-1243783-A (GB)
Title: Wrapping paper for photographic material
Inventor: HOOF EMIEL VAN
IPC: G03C3/00
Filed: 1967-09-13
Abstract: 1,243,783. Photographic wrapping paper. AGFA GEVAERT. Sept. 10, 1968 [Sept. 13, 1967], No. 41832/ 67. Addition to 1,141,806. Heading G2C. A wrapping paper for photographic material comprises a flexible black paper support coated on one side with a layer containing an actinic light absorbing pigment in a polymeric latex and on the other side with a transparent layer. Alternatively, a pigmented polymeric latex layer may be coated on both sides of the support and one of these layers overcoated with the transparent layer. The constituents of the layers are preferably those specified in the parent Specification 1, 141, 806. Indicia may be printed on the pigmented layer for identification purposes. The paper may be used for X-ray films or be attached to a photographic roll film when it also functions as a backing paper.
Patent GB-1076159-A (GB)
Title: Improvements in or relating to nursery furniture
Inventor: TAYLOR KENNETH FREDERICK
IPC: A47D1/04
Filed: 1963-10-24
Abstract: 1,076,159. Nursery, chairs. PLANNING UNIT Ltd. Jan. 25, 1965 [Oct. 24, 1963; March 3, 1964], Nos. 42093/63 and 8916/64. Heading A4J. A combined high chair and play seat unit comprises a supporting frame 1 adapted when placed on end to assume a feeding position. Fig. 1, and when turned bodily on to one side to assume a playing position, Fig. 2 (not shown). A seat 13 and backrest 14 are pivotably and slidably mounted on the frame 1. The seat and backrest are pivotably connected by links 15, the backrest links having slots 15b to receive pivot pins 15c secured to the frame 1. The seat links are pivoted by fixed pins 15a to bars 3 of the frame 1. By pivoting the seat and backrest about the pivots 15a, 15c they each move through a right angle from their position in Fig. I to that in (Fig. 2). A double sided footrest 17 is adjustably mounted in frame in A child is prevented from slipping from the seat by a strap 20 extending from a table 5 of the unit under seat 13 and secured to a playing surface 10.
Patent GB-1027762-A (GB)
Title: Writing instruments
IPC: B43K24/16
Filed: 1962-11-08
Abstract: 1,027,762. Multiple pens. M. J. VON ARK. Nov. 8, 1962 [Nov. 9, 1961; Dec. 22, 1961], No. 42296/62. Heading B6P. A multiple pen including two or more projectible pen units a, a 1 , each attached to a spring-retracted pusher d, has a ramp carried by each pusher, which ramp when its pusher is operated disengages a projected unit so that the unit is retracted by its spring. In one embodiment, Fig. 1 (no shown), each pusher has a head g and is retracted by a spring f situated between the inner end g 1  of the head and a recess e 1  in a fixed block e. Each head g has a projection k on its inner face which in the retracted position enters a slot i 1  in a fixed central partition i, with the outer end j of the head g abutting against a shoulder h 1 , In the projected position, the end j engages the inner end i 2  of the partition i. The inner end of each projection k is formed as a ramp k 1  which, if the head g of a retracted pen is moved downwardly engages the inner end j of the projection k of a projected pen and releases the head end j from the part i 2  so that its spring f retracts the pen. In a modified construction, Figs. 5, 6 (not shown), a head g when moved to projected position, moves a ball o, by means of a ramp m 1  on the head, into a recess m in the other head g, and the ramp on the other head moves the ball in the opposite direction when that head is pushed inwardly, so as to release the first head.
Patent GB-1247192-A (GB)
Title: Suspending agent, especially for water-based paints and aqueous film-forming suspensions
Inventor: DREHER EMIL
IPC: C09D7/45
Filed: 1968-09-06
Abstract: 1,247,192. Polymer-pigment suspensions. E. DREHER. 6 Sept., 1968 [7 Sept., 1967], No. 42531/68. Headings C3B, C3F and C3Q. [Also in Division C2] A suspending agent for a film forming suspension comprises one or more amine salts of an acid organic derivative of a phosphorus acid (see Division C2). Examples describe the addition of various suspending agents to: (i) a water-soluble stoving paint containing Heso epoxy-resin ester; (ii) a water-soluble air-drying primer paint containing the resin Scadosol; (iii) a water-soluble stoving paint containing the resin CIBAMIN (Registered Trade Mark); (iv) a water-soluble stoving paint containing Strodex, a homogeneous complex acid organic polyphosphoric acid ester anhydride; (v) a chlorinated rubber/red lead paint; (vi) a stoving primer paint containing ALFTALAT (Registered Trade Mark); (vii) a nitro-combination primer paint containing Collodion wool; and (viii) a synthetic resin paint containing ALFTALAT (Registered Trade Mark).
Patent GB-1117062-A (GB)
Title: Ortho-aminoarylketimines
IPC: C07D243/14
Filed: 1965-06-14
Abstract: Compounds of the general formula <FORM:1117062/C2/1> (in which R1 is a hydrogen or halogen atom, a trifluoromethyl group, a C1- 7 alkyl or alkoxy group or a nitro or amino group, R2 is a phenyl group which may be substituted by a halogen atom, by a trifluoromethyl or nitro group or by a C1- 7 alkyl or alkoxy group, or is a C1- 7 alkyl, C5- 7 cycloalkyl, furyl or thienyl group and R3 is a hydrogen atom or C1- 7 alkyl group) are prepared by reacting a compound of the formula <FORM:1117062/C2/2> with R2MgX (in which X is a halogen atom) and decomposing the resulting magnesium-containing compound with aqueous liquid.
Patent GB-1022320-A (GB)
Title: Power assisted steering mechanisms
IPC: B62D5/24
Filed: 1964-10-20
Abstract: 1,022,320. Power assisted steering. FORD MOTOR CO. Ltd. Oct. 20, 1964 [Dec. 9, 1963], No. 42709/64. Heading B7H. Movement of input member 51 of a power assisted steering mechanism causes fluid pressure to both actuate power piston 23 and move output member 24 relative to the power piston to reduce the backlash between them. The power steering mechanism comprises two relatively rotat- 'able valve discs 55, 53 resiliently connected by C- spring 58 keyed at 56 and 54, respectively to input shaft 51 and the extended end of worm 45, the shaft 51 and worm 45 being connected by a splined coupling 52 to permit limited relative motion. When the torque on input shaft 51 exceeds the loading of spring 58, valve disc 55 is moved relative to disc 53 directing hydraulic pressure fluid from inlet 12 and chamber 61 to conduits 66 and 67 and cylinder chamber 64 to move the piston to the left, fluid from cylinder chamber 68 passing through conduit 71 and the control valve to valve chamber 63 and outlet 18 to a fluid reservoir. To move the piston to the right the control valve connects chamber 68 to inlet 12 and chamber 64 to outlet 18. Conduit 67 is connected by passages 86 and 85 (Fig. 3) to chamber 84 containing reduced area end face 28 of shaft 24 and the chamber 68 communicates with the annular face 29 of the shaft 24 in order to apply an end force to the shaft 24 to reduce the backlash between socket 37 of the shaft and spherical extension 38 of piston 23 when the steering is in operation and either chamber 64 or 68 is pressurized.
Patent GB-1111856-A (GB)
Title: Method of manufacturing improved polyoxymethylene graft copolymers
IPC: C08F283/06
Filed: 1965-10-08
Abstract: Graft copolymers are manufactured by grafting an oxymethylene copolymer which contains 0.1 to 15 molar per cent of a comonomer having a carbon-carbon linkage with a vinyl compound with simultaneous irradiation or pre-irradiation using an ionizing irradiation.  Suitable vinyl compounds are styrene, methyl or ethyl methacrylate, methyl or ethyl acrylate, vinyl acetate, acrylonitrile, vinyl pyridine, vinyl pyrrolidone, acrylamide, potassium styrene sulphonate, ethyl - a  - chloroacrylate and butadiene.  The graft copolymers may be mixed with known anti-oxidants, thermal or light stabilizers.
Patent GB-1444724-A (GB)
Title: Endoprosthetic joint
IPC: A61F2/38
Filed: 1972-09-15
Abstract: 1444724 Endoprosthetic joints HOWMEDICA INTERNATIONAL Inc 26 Sept 1973 [15 Sept 1972] 42950/72 Heading A5R A surgical device for use between two or three bones of a joint, comprises a first location member in the foam of a bobbin 6 having in its cylindrical periphery a square section channel-shaped groove 7 constituting an engagement portion, a securing element in the form of a screw 13, and an engagement member 10 having an engagement surface 11 engaging the groove 7, the natural tendons and muscles of the patient being relied upon to hold the engagement surface on the engagement member in the groove of the location member in use. The screw 13 fits into a hole 8, inclined to the longitudinal axis of the bobbin with one end 9 of the hole aligned with the said axis. The engagement member 10 is part angular and is of a width such that it fits within the groove 7, the surface 11 contacting the bottom of the said groove and the engagement member and thereby being rotatable about the axis of the bobbin but being held against axial movement. The outer periphery of the engagement member is provided with projections (12) Fig. 4 (not shown) which assist in securing the engagement member in position on a bone 3. For use between three bones, the screw 13 carries a second location member 14, which is also in the form of a bobbin, having an arcuate groove 15 in its cylindrical periphery. The screw passes through a hole 16 similar to the hole 8. A second engagement member 18 cooperates with the member 14 and has a part-spherical upper end 19, the lower part being in the form of a spigot 20. The partspherical portion 19 engages the semi-circular groove 15 such that the member 19 can rotate in the groove and also move angularly around it. The device is fitted into the bones by cutting a slot 21 in the lower end of a bone 1 thus leaving two straight side portions 22, 23. The slot is angled as a whole in relation, to the longitudinal line 25 of the said bone.
Patent GB-958514-A (GB)
Title: A latch mechanism
IPC: E05C1/14
Filed: 1960-12-14
Abstract: 958,514. Releasable fastenings. AHRENDLIBRA N.V. Dec. 14, 1960 [Oct. 29, 1960], No. 43061/60. Heading E2A. The spring-loaded bolt 4 of a latch mechanism is operated by an axially sliding spindle 16 as follows: a lug 15 on the spindle enages a part 12 of a member 10 mounted in the latch casing 3 for rotation about an axis perpendicular to the longitudinal axis of the bolt 4. A further projection 11 on the member 10 engages lugs 13, 14 on a member 5 secured to the bolt, so that the latter is either engaged or retracted as the member 10 is rotated. A spring 7 is located between a recess 6 in the bolt 4 and a projection 8 fixed to the casing 3. A pin 28 may be provided for locking the member 5 with the bolt 4 in the engaged position, together with a slide 32 mounted in the door rosette 31 for engagement behind the operating knob 18 to prevent actuation of the latter. In a modification, the abutment 12 is provided with a serrated projection for co-operation with teeth on the spindle 16.
Patent GB-1140647-A (GB)
Title: Process for producing flexible olefin copolymers
IPC: C08F210/00
Filed: 1967-09-22
Abstract: 1,140,647. Copolymerizing olefins. MITSUBISHI PETROCHEMICAL CO. Ltd. 22 Sept., 1967 [24 Sept., 1966], No. 43301/67. Heading C3P. Flexible olefin copolymers having an ethylene content of from 70 to 95% by weight are made by copolymerizing ethylene with another alpha-olefin in a solvent which is benzene or an alkyl benzene containing 1 to 4, C1 to 4, alkyl groups, in the presence of a catalyst comprising a compound of the general formula Al 2 R 3 X 3  where R represents a hydrocarbon residue and X a halogen, and a vanadium compound of the general formula VOX 3  where X represents halogen, e.g. VOCl 3 . Preferred Al compounds are Al 2 (C 2 H 5 ) 3 Cl 3 , Al 2 (n-C 3 H 7 ) 3 Cl 3 , and Al 2 (i.C 4 H 9 ) 3 Cl 3 . The alkyl benzene may be toluene, a xylene, ethylbenzene, or isopropyl benzene. Hydrogen may be present during the copolymerization. Exemplified comonomers are propylene and butene-1.
Patent GB-1528748-A (GB)
Title: Process for preparing a resin
IPC: C08G61/00
Filed: 1974-10-07
Abstract: 1528748 Curable resin containing phenolic groups ALBRIGHT & WILSON Ltd 6 Oct 1975 [7 Oct 1974] 43345/74 Heading C3R [Also in Division B5] A process for preparing a curable resin containing phenolic groups comprises reacting (1) an aralkylene ester of formula wherein R<SP>1</SP> is a divalent or trivalent aromatic hydrocarbyl group or an aromatic hydrocarbyloxy-aromatic hydrocarbyloxy group, R<SP>11</SP> is an alkyl group of 1 to 6 carbon atoms, or an aryl group of 6-13 carbon atoms, Y is a carbonyl or sulphonyl group and a is 2 or 3, with (2) a molar excess of a phenolic compound or a mixture thereof with a non-phenolic aromatic compound. R<SP>1</SP> may contain optional halogen, alkyl or phenyl substituents. The reaction may be carried out at 100 to 200 C. and in the presence of a Friedel Crafts catalyst or a dialkyl sulphate. The resin product may be cured by heating with a cross-linking agent, e.g. hexamethylene tetramine, or with a compound having at least two epoxy groups. In examples resins are obtained by reacting p-xylylene diacetate with resorcinal and with phenol and by reacting p-xylylene di-benzenesulphonate with phenol; a mixture of one of the resins and hexamethylene tetramine is used to impregnate glasscloth which is used to make a laminate by pressing and heating to cure the resin.
Patent GB-1528085-A (GB)
Title: Device for separating the components of a gas mixture
IPC: B01D59/18
Filed: 1976-10-20
Abstract: 1528085 Vortex separators COMMISSARIAT A L'ENERGIE ATOMIQUE 20 Oct 1976 [24 Oct 1975 28 June 1976] 43558/76 Heading B2P  A device for separating components of a mixture of gases, e.g. U<SP>235</SP> and U<SP>238</SP> from UF 6 , comprises a vessel 2, Fig. 1, in the form of a solid of revolution and into the interior of which the gas mixture is fed through openings e.g. 9, 11, 12, 14 provided at spaced intervals through the peripheral wall of the vessel so as to form a vortex flow within the vessel radially spaced means 20 and 24 coaxial with the vessel being provided at least at one end of the vessel for discharging respectively a first fraction enriched in a light component, e.g. U 235 , and a second fraction enriched in a heavy component, e.g. U 238 . The vessel 2 may be cylindrical and is surrounded by a chamber 8 to which the gas mixture to be separated is supplied by a compressor 10. Each feed opening, Figs. 2 and 4 is so inclined that the projection, on a transverse section of the cylindrical vessel of the axis A of the opening makes a substantially constant angle α with the plane # which is tangent to the vessel and intersects the axis A as at 50, the axis A coinciding or, as shown, making a substantially constant angle # with the transverse section of the cylindrical vessel. The feed openings may be in the form of slits parallel to or helically arranged relative to the axis of the cylinder. In the latter case the groups of slits of opposite hand may be arranged on either side of a transverse median plane of the cylinder. The vessel is closed at both ends by covers 4 and 6. In each cover, the discharge means 20 consists of a central opening in which a flared nozzle 26 is fitted and discharge means 24, as shown, consist of a number of concentric openings. In a modification, the set of concentric openings 24 is surrounded by a further set of openings for the discharge of a fraction of the gas mixture, the composition of which is more or less similar to that of the original mixture of gases. This latter fraction may be recirculated through the vessel with fresh mixture. In a further modification, the discharge means 24 may consist of an annular opening, this opening being surrounded by a set of concentric openings. Where separating isotopes of uranium, hydrogen or helium may be introduced with the uranium gas as a carrier.
Patent GB-1471979-A (GB)
Title: Drying tumbler
IPC: D06F58/02
Filed: 1974-10-08
Abstract: 1471979 Tumble dryers McGRAW EDISON CO 8 Oct 1974 [15 Oct 1973] 43596/74 Heading F4G [Also in Division D1] A drying tumbler 23 comprises a frame which rotatably supports an imperforate cylindrical drum 24 having at least one opening for loading and/or unloading articles to be dried, stationary hollow head structures 34, 35 being provided on the frame, one in spaced relation to each of the opposite ends of the drum 24. The head structures 34, 35 each comprises a pair of spaced walls 58, 59 closed along the major portion of their outer edges and circle sealing means 70 are slidably interposed between the drum 24 and a corresponding head structure so as each to enclose a cylindrical air space. The inner wall 59 of each of the head structures is apertured to provide communication of the head structure with the corresponding cylindrical air space. An air circulating means is connected between the head structures for circulating air through the drum 24 lengthwise thereof via the head structures, the cylindrical air spaces and axial openings in the ends of the drum. The walls 58, 59 of the head structures are apertured in line with the axis of the drum, the walls at the apertures being bridged by a perforate cylinder 61. The drum rests on rollers and is driven by a motor via belts and a pulley (Fig. 2, not shown). The drum has a loading aperture and an unloading aperture which are each closable by a respective door 63, 64. The flow of drying air is in the direction from the unloading to the loading end of the drum. Four perforate ribs 78, (77) communicating at each end with the adjacent cylindrical air space are provided in the drum, the ribs being centrally partitioned such that air flowing into one end of a rib is forced into the main space of the drum before it can return to the rib and flow out of the other end of the rib. The tumbler is used in operative combination with a pivotally mounted washerextractor 10. The tumbler 23 is movable on castors between a tumble drying position and a loading position adjacent the washer-extractor 10. The tumbler is tilted in its movement towards the washer-extractor by the castors thereof co-operating with rails (46), 47 which each have a horizontal portion (46a), 47a nearer the washer-extractor and a ramp portion (46b), 47b. The tumbler is provided with a loading shoot 34a having a rubber bumper 34b along its outer edge.