baber/WOPTO huggingface dataset:
Patent GB-1138917-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D43/25
Filed: 1967-09-29
Abstract: 1,138,917. Friction clutches. W. SCHIFFER. 29 Sept., 1967 [3 Oct., 1966], No. 44550/67. Heading F2C. A temperature-responsive friction clutch between an engine cooling fan 9 and a continuously rotatable driving shaft 1, 3 on which the fan is freely mounted, comprises a helical bimetallic clutch spring 5 rigidly fastened at one end to a hub 4 of the fan 9 and externally surrounding, or internally surrounded by (Fig. 2, not shown), a clutch drum 2 fast on the driving shaft 1, 3, the bimetallic coil contracting (Figs. 1 and 3), or expanding (Fig. 2) with increased temperature to engage the coil 5 with the drum 2 to drive the fan 9. Blades 6 fast with the driving clutch drum 2 circulate the bi-metallic clutch coil with the gaseous medium the temperature of which controls the clutch, whilst in Fig. 2 (not shown), the bi-metallic coil forms a channel for the fluid medium which senses the controlling temperature.
Patent GB-1020885-A (GB)
Title: Method of treating alunite for extracting alumina and other products
IPC: C01F7/22
Filed: 1962-11-27
Abstract: Alunite is treated to extract alumina and other products by heating the alunite with potassium, sodium, or magnesium chloride, and washing the product with water.  The preferred chloride is potassium chloride, in which case the reaction may be represented by K2Al6(OH)12(SO4)4 + 6KCl --> 4K2SO4 + 3Al2O3 + 6HCl + 3H2O The potassium chloride may be in crystalline or powder form, and the mixture may be moist prior to heating.  The alunite may be contained in an ore which is mechanically concentrated prior to the above treatment.  An excess of the chloride may be used, the excess being optionally recovered and recycled.  The alumina may be freed from silica by dissolving in sodium hydroxide and precipitating pure alumina therefrom.
Patent GB-1451365-A (GB)
Title: Method and device for attachment of ceiling-suspended equipment
IPC: E04F17/08
Filed: 1973-09-25
Abstract: 1451365 Ducting A L H NILSSON 25 Sept 1973 [26 Sept 1972] 44894/73 Heading H2C A ducting, Fig. 2, of electrically conductive material, e.g. steel, comprises two channels 23, 24 defined by partition 18, having therein electric cables and ducts for fluids, and closure plates 17 with fastening means 30 which permit the plates to be moved longitudinally while still being held in engagement with the body of the ducting.  In fitting out a hospital operating theatre the ducting is fitted flush with a suspended ceiling 29 with seals 28, and selected closure panels may be replaced by anchor plates 1 of the same length carrying service outlets such as an anaesthetic unit (3, 7, Fig. 1, not shown) and a surgical distribution board (13). The ducting also carries a transverse girder on which are mounted X- ray apparatus (14) and lighting (11, 12). Connection of the equipment to fixed cables and pipes in the ducting is effected with flexible cables and hoses. The pipes may carry, for example, oxygen, laughing gas, air, water, and vacuum.
Patent GB-1535250-A (GB)
Title: Memory system
IPC: G11C11/35
Filed: 1976-10-28
Abstract: 1535250 Matrix memories HITACHI Ltd 28 Oct 1976 [7 Nov 1975 26 Jan 1976] 44896/76 Heading G4C A matrix type memory comprises a memory cell MC 0 , MC 1  ... (Fig. 3) at each intersection of a word line W 0 , W 1  ... and a control line DG 0 , DG 1  ..., information lines DL 0 , DL 1  ... for reading/writing being parallel to the control lines and connected to a common sense amplifier SA. In the embodiment of Fig. 3, each cell comprises a transistor Q S , capacitor C S  and power supply V DD , the cell being selected when both its word line and its control line have a voltage V H  supplied to them, to read out to a sense amplifier SA or read in from a circuit DIC. The cell is manufactured as shown in Fig. 2 with two layers of polysilicon separated by an insulating layer on a substrate with the capacitor formed between power supply electrode layer PL and the inversion layer ST formed below it when it has a high voltage applied. The transistor is formed by the inversion layer ST, the inversion layer CH below control line electrode DG and region Q, the information line being the inversion layer CH. In a modification of the cell (Fig. 4, not shown), a thin N-type layer is formed below the control electrode (DG) through an insulating layer (IS) and connected with a N + type diffusion layer (K). In a further embodiment each cell has two transistors (Q S , Q D , Figs. 5, 7, not shown), the input electrodes of which are connected respectively to the word lines and control lines, the first having an output electrode connected to the capacitor and the other having an output electrode connected to the information line. In an alternative twotransistor cell embodiment (Fig. 8, not shown), one transistor (Q S ) has its output electrodes connected to the capacitor and information line and the other has its input electrode connected to the control line and one of its output electrodes connected to the word line. A plurality of matrices of such cells may be connected to the same word and control lines so that one cellper matrix is read out (Fig. 9, not shown). In an alternative embodiment only one cell is read out from a plurality of matrices (Fig. 10, not shown). In a further embodiment (Fig. 11, not shown) two dummy cells (DC 0J , DC 1J ) are included for each row j of the matrix and when the output from a memory cell associated with the even-numbered control line (DG 0 , DG 2 ) is read out to one input of sense amplifier (SA) the dummy cell (DC 1j ) is read out to the other input so that noise is removed. In a further embodiment (Fig. 12, not shown) the memory comprises two halves, each half having a dummy row of cells, one of which is sensed when a cell in the corresponding column of the other half is read. The data lines may be taken from opposite sides of the matrix.
Patent GB-1122809-A (GB)
Title: Device for measuring turbidity in fluids
Inventor: CHIVERS KENNETH JOHN
IPC: G01N21/53
Filed: 1964-11-04
Abstract: 1,122,809. Photo-electric determination of turbidity. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 30, 1965 [Nov. 4, 1964], No.44922/64. Heading G1A. Turbidity detection apparatus includes two photo-conductive cells, one located to receive light transmitted from a source through a fluid, and the other receiving light scattered by the fluid, and means to compare the resistances of the cells. The device has application in, for example, the measurement of the cloud point (i.e. the temperature at which separation of phases occurs). A sample liquid is contained in a test cell 7, Fig. 1, contained in a light-proof box 5 in which are arranged two photo-resistors 4, 6 e.g. cadmium sulphide cells, at right angles to one another, a light beam being directed at one of the cells, through the liquid. The cells from two arms of a Wheatstone bridge circuit, Fig. 2 (not shown) and the other arms of variable resistance are adjusted to balance the bridge such that the light spot in the galvanometer (G), arranged across the bridge, falls on to a photo-cell and energizes a heater to heat the sample. At the cloud point the liquid becomes turbid and the bridge out of balance due to the difference in the detector resistances. The galvanometer light spot moves and the heater is cut off. The temperature of the sample is then read, by the operator having been alerted by a visual or audible alarm, to read a thermometer immersed in the liquid or a galvanometer (G 2 ) forming part of a further Wheatstone bridge including a thermistor immersed in the liquid, Fig. 3 (not shown). Automatic recording of the cloud point is possible. The galvanometers (G 1  or G 2 ) being replaced by the channels of chart recorders. The off-balance current of the photo-cell bridge may be fed to a transistor amplifier feeding an ammeter and a trip relay to operate the warning device and switch off the heater. Other applications mentioned are measurement of size particle distribution of solid particles in a liquid, particularly in a centrifuge system, solubility by investigating a suspension at different dilutions, and analytical studies by precipitation.
Patent GB-1089848-A (GB)
Title: Apparatus for measuring the diffusing power of a liquid
IPC: G01N21/53
Filed: 1964-11-04
Abstract: 1,089,848. Turbidometer. NIPPON PRECISION OPTICAL INSTRUMENT CO. Ltd. Nov.4, 1964 [Nov. 7, 1963], No.44957/64. Heading G1A. A turbidometer comprises a lamp 4, condenser lens 6, pinhole at 5, collimator 7 and adjustable aperture 8 through which a light beam is directed to a sample cell 3. The stream of liquid under investigation passes through the cell 3. Light passing through the liquid reaches integrating sphere 9 which includes a cadmium-sulphide photo-resistor 16. Directly opposite the sphere inlet, which is covered with a quartz window 10 there is a hole against which is mounted a disc 11 carry a white plate 13 and a light trap 12. Rotation of the disc by motor 15 causes these to complete the sphere alternately. When the trap 12 completes the sphere only light passing through and being diffused by the liquid reaches photo-resistor 16. When the plate 13 closes the sphere both the diffused and the direct light passing through the liquid fall on 16. A circuit (Fig. 2) is described for separating the two signal levels in the photo-resistor output and applying them to a comparator giving an output proportional to their difference in intensity. A constructional arrangement in which the light source elements are contained in a box (1) fixed wholly within a chamber through which the test liquid flows and the remaining elements of the system are arranged in a second box (2) also within the chamber is described (Figs. 3 and 4). Manual adjustment of the distance apart of the two boxes, and thus the distance the light path extends in the liquid is possible from outside the chamber.
Patent GB-974960-A (GB)
Title: Valveless dustproof respirator
IPC: A62B23/02
Filed: 1962-11-29
Abstract: 974,960. Respiratory appliances. OSTRAVSKOKARVINSKY REVIR ZAVOD AUTOMATIZASE A MECHANIZASE NARODNI PODNIK. Nov. 29, 1962 [Dec. 19, 1961], No. 45184/62. Heading A5T. A dust mask comprises a body member 1, shaped to fit against the face and bear on it by an edge contact only, carrying a cloth filter 2 which is retained in place by a perforated cover member 4. The filter is initially of pyramidal or conical form and then closed in on itself in corrugated folds which are held in position by radial spacers.
Patent GB-942905-A (GB)
Title: Improvements in or relating to printing screens
IPC: B41F15/36
Filed: 1961-12-18
Abstract: 942,905. Stencils. J. R. THIERRY, and KINGSTON SCREENS Ltd. - Dec. 18, 1961, No. 45239/61. Heading B6C. A separating rib is formed in the fabric of a silk or nylon screen 6 for use in the silk screen printing process by folding a strip 7 of rigid material such as metal on two parallel lines along its length so as to provide three flat elongated sections 8, 9, 10, sections 8 and 9 being of substantially equal widths and section 10 being slightly narrower than sections 8 and 9, inserting a fold of the fabric 6 between the sections 9 and 10, tightly pressing sections 9 and 10 together to sandwich the fold of fabric therebetween, and then tightly pressing sections 8 and 10 together to sandwich a further double layer of fabric therebetween. The free fabric is then separated and stretched on a frame, Fig. 1 (not shown).
Patent GB-1490929-A (GB)
Title: Thiazolyl-phthalide compounds their manufacture and use
IPC: C09B11/26
Filed: 1975-10-31
Abstract: 1490929 Thiazolylphthalalide compounds CIBA-GEIGY AG 31 Oct 1975 [14 Nov 1974] 45390/75 Heading C4P The invention comprises thiazolylphthalide compounds having the general formula wherein A is a p-aminophenyl radical of general formula a 3-indolyl radical of general formula or a 2-thiazolyl radical of the general formula in which formulae R 1 , R 2 , X 1 , X 2 , R<SP>1</SP> 1  and R<SP>1</SP> 2  are H, C 1 -C 12  alkyl, alkoxyalkyl having 2-8 C atoms, C 5 -C 6  cycloalkyl or optionally substituted benzyl or phenyl or each of R 1  + R 2 , X 1  + X 2  and R 1 <SP>1</SP> + R 2 <SP>1</SP> together with the N atom may form a hetero ring optionally containing a further hetero atom, Y 1  and Y 1 <SP>1</SP> are H, C 1 -C 12  alkyl, C 5 -C 6  cycloalkyl, or optionally substituted benzyl or phenyl, V 1  is H, C 1 -C 12 -alkyl or alkoxy, or acyloxy having 2-12 C atoms, Z 1  is H, C 1 -C 12  alkyl, benzyl or #-cyanoethyl, Z 2  is H, C 1 -C 12  alkyl or phenyl and rings B and D may be substituted by halogen, nitro or amino optionally substituted by C 1 -C 6  alkyl. They are prepared by reacting 1 mole of a phthalic anhydride with, in optional sequence, 1 mole of a compound A-H and 1 mole of a thiazole compound of general formula wherein A, R 1 , R 2 , and Y 1  are as above. In a preferred method phthalic anhydride is reacted in equimolar ratio with a p-aminobenzene compound in presence of an organic solvent at 50-150 C and then in a second stage with a 5-aminothiazole compound at 10-100 C in presence of an acid condensing agent, e.g. acetic anhydride, sulphuric acid, zinc chloride or phosphoroxy chloride. The compounds are used in chromogenic pressure sensitive and thermoreactive recording systems.
Patent GB-1323246-A (GB)
Title: Magazines for holding a plurality of propellent charges
IPC: F41A9/72
Filed: 1971-09-30
Abstract: 1323246 Propellant charge magazine for fastener driving tool OLIN CORP 30 Sept 1971 [2 Dec 1970] 45631/71 Heading B4C [Also in Division F3] A magazine 2, Fig. 1, for holding a number of disc-shaped propellant charges 10, Fig. 2, has a tubular body with a number of 'T'-shaped tracks 6 extending radially from a central bore 4 formed therein and passing through the entire length of the magazine. In an embodiment a power tool 14, Fig. 2, which fires fasteners into a work surface (not shown), has a barrel 16 and. a handle 18. The magazine 2 is supported in the tool by a tube 28, a member 20 and by a projection 40 of a bracket 34. The charges 10 are dispensed from the magazine by a spring- urged member 44, Figs. 2 and 4, which is slidable in each one of the tracks 6 in turn to feed individual charges 10 into a bore 74 of the handle 18. Each charge is transferred from the bore 74 by a plunger 72, which has a guiding rod 78 slidably mounted in a bore 80 in the handle 18 and urged by a spring 81, and by a lever 68, which is pivotally attached to the member 20 and is pivotally connected by a pin 70 to the plunger 72. In a modification the plunger 72/lever 68 assembly is replaced by a plunger 92, Fig. 5, having a charge-engaging disc 94 at one end and a hand-engaging disc 100 at the other end.
Patent GB-1458810-A (GB)
Title: Foot exerciser
IPC: A63B22/16
Filed: 1972-10-03
Abstract: 1458810 Foot exercisers D C NORRIS & CO Ltd 2 Jan 1974 [3 Oct 1972] 45638/72 Heading A6M A foot exerciser comprises a foot support member having means for holding a foot in position, and a normally stationary base member upon which the foot support member is directly pivotally supported, there being an adjustable device for resisting pivotal movement of the foot support member. The foot exerciser may comprise a central ball joint between a foot support and a base member, but as shown a base plate 1 has brackets 3, 4 carrying aligned hinges 5 mounting a foot support plate 2 for side-to-side pivoting. A movement damper consists of a plate 8 fast beneath the foot support plate 2 and gripped between friction pads 10, 11 biassed together by an adjustably compressed spring 17. A toecap 18 is fast with the foot support plate 2, and a heel support 19 can be adjusted towards or away from the toecap by releasing butterfly nuts 22. Pins 9 fast with the foot support plate 2 coact with the forward bracket 3, 4 to limit the angle through which the foot support can rock.
Patent GB-1505089-A (GB)
Title: Tennis shoe outsole and method of making the same
IPC: A43B3/16
Filed: 1975-11-04
Abstract: 1505089 Shoe soles UNIROYAL INC 4 Nov 1975 [8 Jan 1975] 45761/75 Heading A3B [Also in Division B5] A tennis shoe outsole (Fig. 4) having adherent to a peripheral region thereof at least one insert 10, 11 made of material having greater abrasion resistance than the material of which the central region of the sole is formed is made by positioning the preformed inserts in a mould (Fig. 2) with pins 20, 21 on the sole plate 16 engaging positioning holes 13 in the inserts, closing the mould by means of the lasted upper 19, and injection-moulding the outsole so that it adheres to the inserts. Preferably, the inserts and the central region of the sole are formed of compatible materials, so that the adhesion between the two is achieved by chemical bonding; for instance, the inserts may be of polyurethane and the central region of foamed polyurethane. The outsole complete with inserts, may be moulded separately and subsequently attached to the upper.
Patent GB-1268795-A (GB)
Title: Colour killer circuit
IPC: H04N9/70
Filed: 1969-09-18
Abstract: 1,268,795. Television. INTERNATIONAL STANDARD ELECTRIC CORP. 18 Sept., 1969 [25 Sept., 1968], No. 46054/69. Heading H4F.  A colour killer circuit for blocking the colour channel of a PAL or "SECAM" (Registered Trade Mark) receiver when the colour sync. signal A, Fig. 2c or the line identification signal, falls below a predetermined level S, comprises a bi-stable circuit 1 to 14, Fig. 1, switched by the negative line fly-back pulses 19, to give a ¢ line frequency square wave output, Fig. 2a. The fly-back pulses are applied to transistor 12 via a gate 25 and a reference signal and a signal derived from the colour sync. signal or the line identification signal are applied in opposition to control the gate, such that reduction of the derived signal below the reference signal causes the gate to disconnect the line fly-back pulses from the transistor whereby it remains in one stable state and produces a signal for said blocking action. The reference signal is set to represent said predetermined level by means of variable resistance 23. A sinusoidal signal at ¢-line frequency and derived from said synchronization or identification signal, is applied at 32 and rectified and smoothed at 30, 29, 28 to produce said derived signal. R/C circuit 15/16 forms the average, Fig. 2b, of the bi-stable output signal, Fig. 2a, the decrease of the average being arranged to cause the channel blocking.
Patent GB-987584-A (GB)
Title: Improvements in polyepoxide resins
IPC: C08G59/40
Filed: 1961-12-27
Abstract: A polyepoxide composition contains 1-25% by weight of a polyborate ester curing agent of formula [(RO)3]x(B3O3)y, wherein x and y are each greater than 1, y/x is greater than 1, but not substantially greater than 2, and R is alkyl with 1 to 10 carbon atoms with or without aromatic substituents, r is aryl with or without alkyl substituents of 1-10 carbon atoms.  The polyborate esters are described in Specification 868,289.  The compositions may include conventional additives, e.g. glass, mineral and metal fibres, mica, asbestos, iron oxide, bentonite, titanium dioxide, cadmium yellows or organic dyestuffs.  Examples used are polyepoxides: a bisphenol A-epichlorohydrin reaction product ("CIBA 6010"-Registered Trade Mark); 2 - methyl - 4,5 - epoxy - 1 - hydroxymethyl cyclohexyl 2 - methyl - 4,5 - epoxy - cyclo - hexene - 1 - carboxylate ("UNOX 201"-Registered Trade Mark); epoxidized polybutadiene (OXIRON 2000); epoxidized soyabean oil (FLEXOL).  Polyborate esters exemplified are: methyl polyborate; n-butyl polyborate; t - butyl polyborate; n - octyl polyborate; benzyl polyborate; phenyl polyborate; 2,4-dimethylphenyl polyborate.
Patent GB-1270774-A (GB)
Title: Improvements in or relating to motor cycles
IPC: F02B61/02
Filed: 1970-09-29
Abstract: 1,270,774. Motor cycles; collapsible frames. HONDA GIKEN KOGYO K.K. 29 Sept., 1970 [3 Oct., 1969], No. 46361/70. Headings B7E and B7H. In a motor cycle the front fork end is removably connected to the vehicle body frame 1 which has a stand 18 so positioned that the rear end weight is only greater than the forward end weight on the stand when the fork end is separated. The wheel base is substantially 1 metre and the saddle height 0À7 metres. An electric wire 21 connects the lamp 19 via a plug 22 to an electric source provided on the frame 1 and a Bowden cable 24 connects a throttle 23 on the handle 20 via a coupler 25 with a throttle valve of the engine 5. The fork end has bridges 7, Fig. 5, each bridge having an aperture 9 which opens to the edge of the bridge through a groove 8. The vehicle body frame 1 is connected by a hollow column 10 which is inserted between two bridges 7 on the fork end. A rotatable steering stem 11 is positioned by inserting a screw rod 12 through respective guide grooves 8 into openings 9 on the bridges and positioning members 15, 13 are mounted in the openings 9 by tightening the knob 14. A pin 16 is received in an opening 16<SP>1</SP> on the lower bridge to prevent rotation of the lower member 13.
Patent GB-1246463-A (GB)
Title: Improvements in or relating to folding screens
Inventor: SAKURAI SHOJI
IPC: A47G5/00
Filed: 1968-10-01
Abstract: 1,246,463. Collapsible closures. TOKYO BLIND KOGYO K.K. and SHOWA DREPU K.K: 1 Oct., 1968, No. 46444/68. Heading E1J. [Also in Division A4] A folding screen comprises vertical and horizontal equilateral parallelogrammic linkages a, b hingedly interconnected at diagonally opposed corners by connection devices 10 for extension and contraction relatively to a mounting device screwed to a support column 11 or wall of a building, and a flexible covering 28 of woven or non woven material connected to the linkage b. A magnetic fastening device may be provided at the free end for attachment to another linkage, or linkages are provided at upper and lower parts of the screen the apices of the horizontal linkages being connected by wires to which flexible coverings at front and rear of the screen are connected.
Patent GB-920604-A (GB)
Title: Hypodermic syringe
IPC: A61M5/28
Filed: 1961-12-29
Abstract: 920,604. Hypodermic syringes. K. ABILDGAARD, [trading as LORENS KEMISKE FABRIK VED A. KONGSTED]. Dec. 29, 1961 [Jan. 3, 1961], No. 46731/61. Class 81 (2). A hypodermic syringe comprises two cylindrical, coaxial compartments separated by a pierceable partition and a piston mounted in each compartment at the end thereof remote from the partition, one piston carrying a needle extending through its associated compartment and pointing towards the partition so as to pierce the latter when moved, and the other piston either carrying, or being adapted to carry, a tubular hypodermic needle the point of which is directed away from the partition. In Fig. 1 a glass tube 1, having a closed end 2, has fixed therein a partition 5 formed with a weakened control portion 11. Disposed one on each side of partition 5 are respective pistons 3 and 4 which define an inner compartment 10 for powder, and an outer compartment 12 for solvent liquid. Projecting inwardly from piston 3 is a tube 6 having a tapered end portion 9 to which a hypodermic needle may be fitted after the closed end 2 has been broken away. Projecting inwardly from piston 4 is a tubular needle 14, the interior of which communicates with compartment 12 through a duct 15 in the base of the needle. Projecting outwardly from piston 4 is a handle 16, inward pressure on which causes needle 14 to pierce the partition 5. In Fig. 4, tube 1 is closed by a separate end 17, and the partition is constituted by a membrane 20 secured to a circumferential rib 19 projecting inwardly from tube 1. The partitionpiercing needle 27 is solid and is slidably mounted in the outer piston 25 and a handle 24 projecting outwardly from the latter. The outer end of needle 27 carries a head 23 initially spaced from the outer end of handle 24, whereby initial pressure on head 23 moves needle 27 to pierce the partition, while further pressure moves piston 25 to mix the solvent and powder together.