baber/WOPTO huggingface dataset:
Patent GB-1078147-A (GB)
Title: Pneumatic servo especially useful in extensometers
IPC: F15B9/10
Filed: 1965-10-14
Abstract: 1,078,147. Fluid-pressure servomotor systems. INSTRON CORPORATION. Oct. 14, 1965 [Oct. 19, 1964], No. 43687/65. Heading G3P. An extensometer comprises clamp arms 78, 80 which receive the specimen each arm being connected by a blade spring, between parts 38, 40 and 34, 36, to a piston member 18. Fluid from a single source is fed through passages 102, 106 to adjustable throttle valves 108, 118 and thence through passages 110, 120 to chambers 122, 112 on opposite sides of the piston. The chamber 112 is also connected through passage 114 and valve 116 to a chamber 117 to act on the upper side of the piston so that the effective upper face of the piston is larger than the lower face. The pressure in chamber 112 is controlled by a leak-off valve 26 carried by the piston member and loaded by a blade spring 28 into contact with the clamp arm 78 thus the piston member 18 assumes a position relative to the position of the clamp arm when the fluid-pressure forces on the piston are balanced. The two pistons act through rods 58, 60 on a transformer 56 to provide an indication of the size of the specimen between the clamps.
Patent GB-915728-A (GB)
Title: Improvements in vibratory roller devices for use in preparing concrete surfaces
IPC: E01C19/28
Filed: 1960-12-20
Abstract: 915,728. Road rollers. ETABLISSEMENTS J. COUTHON. Dec. 20, 1960 [Dec. 23, 1959], No. 43786/60. Class 6(1). A vibrating roller is mounted on an arbor 3 attached to a frame 2 on one side of the roller so that the opposite side of the roller may be driven close to a projecting obstacle. As shown a roller body 8 is rotatably mounted on the arbor 3 and a sleeve 4 by means of rubber mounted journal sleeves 7, 5 respectively, the sleeves being attached to flanges 10, 11 in which is journalled a tubular vibratory shaft 15. The roller is driven by means of a belt drive from a motor M which also drives the vibratory shaft through a belt drive 21 which passes through an opening in the sleeve 4.
Patent GB-1514920-A (GB)
Title: Dispensing container for medicinal foams
IPC: A61M31/00
Filed: 1974-10-09
Abstract: 1514920 Dispensing medicinal foams RECKITT & COLMAN PRODUCTS Ltd 25 Sept 1975 [9 Oct 1974 6 Feb 1975] 43787/74 and 5183/75 Headings A5B and A5R [Also in Divisions B8 and Fl]  A deformable, resilient plastics container 1, Fig. 1, for introducing a medicinal foam into a body cavity comprises a dispensing end portion 2 on which is formed a portion 7 which on twisting breaks away to leave a discharge aperture, and a second end portion 3 having a portion 11 which on twisting breaks away to form an air inlet 10, Fig. 3 portion 3 having a neck 9 formed with sealing rings 12 and a retaining ring 13 over which a one-way valve assembly is pushed, the valve preventing the egress of the container contents therethrough on squeezing the container but permitting the entry of air into the container as the container resumes its original shape after squeezing. The foam may incorporate X-ray contrast media instead of medication. In a modification, the second end portion has an externally threaded neck closed by a diaphragm (21), Fig. 6 (not shown). Before use, a polystyrene valve assembly (23) is threaded onto the neck with an internal projecting ring (32) of the valve assembly resting on a bead (31) of the neck. To provide an air inlet to the container, the valve assembly is further twisted relative to the neck to move ring (32) past bead (31), a cutting edge (26) of the valve assembly then piercing the diaphragm. In operation the container is shaken to produce foam. Foaming Formulations. A laxative which may be dispensed from the container comprises 1.0g dioctyl sodium sulphosuccinate as a foaming medicament, 1.3g hydroxypropylmethylcellulose as a foam stabilizer, 0.15g methyl p-hydroxy benzoate as a preservative, and up to 100ml of water. A buffer system of 0.15g tris(hydroxymethyl) methylamine and 0.08g sodium citrate monohydrate may be incorporated. 0.054g prednisolone sodium phosphate may be incorporated to produce an ulcerative colitis formulation, or 60.0g barium sulphate for an X-ray contrast medium. Other medicaments are specified.
Patent GB-1448313-A (GB)
Title: Disc brake with a mechanical actuator
IPC: F16D65/56
Filed: 1974-10-10
Abstract: 1448313 Spot-type disc brakes BENDIX CORP 10 Oct 1974 [25 Oct 1973] 43994/74 Heading F2E A floating-caliper spot-type disc brake where fluid-pressure-responsive means 28 are provided in the caliper body or housing 24 also has mechanical actuating means, described below. The mechanical actuating means includes a force-transmitting member 36 operably connected to a friction element 20, a pair of mating recessed sockets 54, 56, one, 54, being mounted coaxially on the force-transmitting member 36, the other 56, being mounted on the wall of the housing 24 facing the one, means 58, 60, 74, for moving socket 56 relative to housing 24 and force-transmitting member 36 from the position shown to a second, actuating, position where socket 56 is out of alignment with socket 54 and member 36, and a substantially spherical force-transmitting element 72 retained within and supported solely by the sockets and free to roll up the sides of the sockets during movement to actuating position to generate a force separating the sockets. As shown, the socket-moving means comprises a mounting member 58 carrying socket 56 and pivotally mounted at 60 for rotation about an axis offset from the axis of member 36; a cableoperated lever 74 is secured to or integral with the mounting member 58. A return torsion spring 78 acts on the lever, and a return compression spring 80 acts on the force-transmitting member 36.
Patent GB-1363175-A (GB)
Title: Voltage level indicator
IPC: G01R31/36
Filed: 1972-09-22
Abstract: 1363175 Monitoring battery voltage HEWLETT-PACKARD CO 22 Sept 1972 [9 Dec 1971] 44002/72 Heading G1U The battery in a battery powered digital electronic instrument of the type that includes a digital display, such as a pocket calculator, is constantly monitored by comparing its voltage with a reference voltage (across a Zener diode for example) and whenever the battery voltage drops below the reference voltage a plurality of decimal points are displayed. In the particular embodiment described the indicator is of the type that comprises a plurality of digit light-emitting diode units (as described and claimed in Specification 1354997) which are energized sequentially stroboscopically. Whenever the battery 10 voltage drops below a reference 14 voltage a continuous signal is produced on a decimal point line 38 (rather than a signal differentially timed within the strobe cycle) so that the decimal points in all the digit display units are energized.
Patent GB-1501400-A (GB)
Title: Self-propelled amphibious ferrying and floating bridge unit
IPC: E01D15/22
Filed: 1975-10-27
Abstract: 1501400 Mobile pontoon bridges MAGIRUS-DEUTZ AG 27 Oct 1975 [14 Nov 1974] 44061/75 Heading E1G [Also in Division B7] An amphibious self-propelled floating bridge unit 1 comprises a wheeled pontoon 2 fitted with propellers 4 for propulsion in water, a number of subsidiary floats 10, 11 hinged together for deployment on one side 16 of the pontoon, and a buoyancy body 17 with a deck-forming panel 7 hinged, respectively, at 18, 8 to the pontoon 2 for deployment on the other side 9 of the pontoon. During overland operation of the unit the deck-forming panel 7 is pivoted to a position overlying the deck 6 of the pontoon, the floats 10, 11 are stacked one upon the other on the panel 7, and the buoyancy body 17 is pivoted to a position covering the panel 7 and the floats 10, 11. Ramp forming members 13 are attached to the float 11 by hinges 14. The buoyancy body 17 is preferably of aluminium, plastics or a metal frame covered with a glass-fibre reinforced plastics skin.
Patent GB-959224-A (GB)
Title: Improvements relating to cylinders for domestic and like hot water systems
Inventor: BENN EDWARD
IPC: F24D3/08
Filed: 1961-12-09
Abstract: 959,224. Hot-water supply systems. A. BENN & SONS Ltd. Dec. 10, 1962 [Dec. 9, 1961], No. 44136/61. Heading F4A. An indirectly-heated water storage cylinder 2 contains an annular calorifier 1 the inner space of which is open at the bottom but closed at the top by spaced walls between which is located an air chamber G. An air vent pipe I passes upwardly from the bottom of the chamber G into the storage tank where it is formed with a double bend whilst a pipe E passes through the chamber to provide for upward circulation of the storage water. The lower wall of the air chamber is extended upwardly in an opentopped, frusto-conical portion 4, the interior of which forms a balance chamber H. The open top of portion 4 is located in a recess 3 so as to leave a restricted passage F between the chambers H, G. When the system is filled storage water flows through the passage F to fill the primary circuit to the level of the lower end of the vent pipe I. Subsequent expansion of the primary water when heated drives a part of the air trapped in the chamber G into the chamber H providing an air lock which prevents mixing of primary and secondary water. Loss of primary water is made up as soon as the air buffer has been transferred wholly to the chamber G.
Patent GB-1420877-A (GB)
Title: Carburettors for internal combustion engines
IPC: F15B5/00
Filed: 1973-09-20
Abstract: 1420877 Spray carburetters VICTA Ltd 20 Sept 1973 [20 Sept 1972] 44298/73 Heading F1B The subject-matter of this Specification is identical with that described in Specification 1420876, the claims are concerned with the operation of the mixture throttle valve by a member rotatable in the carburetter body by a manually operable linkage, the member providing a cam face contacted by a follower acting on the valve.
Patent GB-1442356-A (GB)
Title: Solid electrolytes
IPC: C04B35/111
Filed: 1973-09-21
Abstract: 1442356 Solid electrolytes VOSTOCH N-I INST OGNEUPORNOI PROMYSHLENNOSTI 21 Sept 1973 44333/73 Heading C1A and C1J [Also in Division G1] A solid electrolyte (defined as an ion-conductive crystalline refractory body) comprises 92-98% alumina, 0À5-2À0% titania, 0À5-5À0% zinc or iron oxide and up to 1% impurities. A mixture for the preparation of the solid electrolyte comprises particulate alumina, particulate titania and either particulate zinc oxide or particulate iron oxide in the above proportions. The mixture may be prepared by simultaneous mixing and grinding to less than 3 Á. The solid electrolyte may be prepared by mixing the particulate mixture with 14-16% paraffin wax, heating to 60‹ C., forming, heating to 220‹ C. and sintering at 1550-1600‹ C. The electrolytes may be used for detecting zinc or iron admixtures in metals.
Patent GB-1450796-A (GB)
Title: Photographic colour printing apparatus
IPC: G03B27/73
Filed: 1973-09-21
Abstract: 1450796 Photographic colour printers AGFAGEVAERT AG 21 Sept 1973 [22 Sept 1972] 44341/73 Heading G2A A printer has at least one photo-cell for each primary colour arranged to receive light transmitted through an original, means which before exposure: (a) computes an under-correction signal for each primary colour of the original to be printed (b) determines whether the original is under or over exposed and generates a corresponding slope correction signal for each colour (c) generates a reference signal for each colour dependant on the under-correction and slopecorrection signals, and means which, during exposure: (d) integrates the outputs of the photo-cells (e) compares the reference signals and integrated outputs to determine the exposure of the print material to each colour. As shown, three channels 26, 27, 28, one for each primary colour, each have at least one (pref. four) photo-cells (10, 24, 25). In channel 26, photo-cell 10 and a lag amplifier 35 provide a signal characteristic of the density of the original in one colour, a potentiometer 53 provides a signal derived from a calibrating original (potentiometer 53 and filters 6, 7, 8, Fig. 1 (not shown), being adjusted to provide equal exposure times in each channel for a calibrating original), and an amplifier 51 subtracts the signals. Components 55-57 compute from this difference signal and the difference signals from channels 27, 28 an under-correction signal for channel 26, components 58-63 compute a slope correction signal, and a summing amplifier 46 receives these signals and generates a reference signal. At the start of exposure an integrating capacitor 32 is switched in and its output compared by an amplifier 40 with that of summing amplifier 46 by an amplifier 40 to terminate exposure in channel 26. Potentiometer 34 is set according to the format of the original, 37 according to print material characteristics and 59 and 60 are set to provide under and over exposure, slope correction signals respectively. Potentiometers 42, 43 are set by the operator e.g. when a colour imbalance in the original is dictated by the subject and should not be equalized by the automatic colour correction. These pots 42, 43 are also connected to the other channels for compensation so that the overall density is unaltered.
Patent GB-1141088-A (GB)
Title: Process for the production of melt-spun synthetic fibres
Inventor: GROBE VOLKER
IPC: D01D5/16
Filed: 1967-09-29
Abstract: 1,141,088. Spin-stretching synthetic fibres. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. 29 Sept., 1967, No. 44383/67. Heading B5B. Synthetic fibres, e.g. of polycaprolactam or polyethylene terephthalate, are melt-spun, and subsequently spin stretched by passing them over a heated fibre braking means at 50-130‹ C., situated between the spinneret and a first draw-off godet. Suitably, rounded rods are used as braking means, of which two may be placed at right angles to the direction of the fibre travel, and the fibre passed round them. The fibres may be passed through heated liquids in this stage. Subsequent stretching on rotating godets may also be effected.
Patent GB-1136682-A (GB)
Title: Method and apparatus for automatic glass cutting
Inventor: ZELLERS JAMES THOMAS
IPC: C03B33/023
Filed: 1966-10-05
Abstract: 1,136,682. Cutting glass sheets. LIBBEYOWENS-FORD GLASS CO. 5 Oct., 1966, No. 44404/66. Heading C1M.  Glass sheets having been scored are stacked with the scores aligned and broken in the stack. Sheets 10 move past scoring tools 11 on to a table at C. Moving scoring tools 12 then produce cuts b. At E the sheets are broken into strips 13 which are stacked on to a table G and after aligning the stacks they are conveyed to be broken at J into finished stacks 15. Braking rolls are used actuated by fluid pressure by delay relays controlled by sensing switches and the automatic circuitry is fully disclosed.
Patent GB-1166809-A (GB)
Title: Electric Time Switch
Inventor: PFISTER JOHANNES
IPC: G04C23/34
Filed: 1968-09-19
Abstract: 1,166,809. Time switches. FR. SAUTER A.G. FABRIK ELEKTR. APPARATE. 19 Sept., 1968 [26 Oct., 1967], No. 44687/68. Heading H1N. A time switch of the kind having a twentyfour-hour rotary dial 3 carrying an adjustable tappet unit 1 which can be rendered operative or inoperative on any selected day, comprises a seven-position star-wheel 7 rotatably carried on a spindle 11 mounted for axial movement in tappet unit 1 and secured to a plate 12 which carries a switch actuating " on " tappet 4 or " off " tappet 5. A spring 15 tends to lift spindle 11 and hence plate 12, which is prevented from turning by a guide pin 13. The wheel 7 is stopped once every twenty-four hours by engagement with a fixed pin (9, Fig. 2, not shown) and located by a leaf spring (10, Figs. 2 and 4, not shown). The lower side of wheel 7 has a cam lobe 14 which engages one or more studs 17 which can be selectively inserted into seven threaded holes (16, Fig. 4, not shown) in plate 12 arranged in a circle concentric with spindle 11. When plate 12 is raised by spring 15 its tappets are inoperative but when depressed by cam 14 engaging a stud 17 (as shown) the tappets 4, 5 are operative for that particular day.
Patent GB-1512220-A (GB)
Title: Method of providing a substitute memory module
IPC: G05D13/10
Filed: 1975-10-29
Abstract: 1512220 Data processing NORTHERN TELECOM Ltd 29 Oct 1975 [12 Nov 1974] 44698/75 Heading G4A A low priority memory module M1 is marked, by setting a spare marker 107 to 1, to be used as a substitute for a higher priority memory module M2 or M3 which develops a fault. In normal operation each called address is fed to a comparator 102, coincidence of the called address with the memory module address in a store 101 enabling store 21 via gates 103 and 111. If a fault develops in a memory module the address of the faulty memory module is entered in an address register 400 and a 1 is output on a bus 300 which disables AND gate 103 in the marked memory module M1 to prevent it responding to its own address. Data identical to that in the faulty memory module is then loaded, for example from a standby magnetic tape unit, into the store 21 of the marked memory module M1. Each called address is fed to a comparator 500 and on coincidence with the faulty memory module address in address register 400a 1 is output on line 200 to enable store 21 in the marked memory module M1 via gates 110 and 111. The memory modules M1-M3 may form part of the control unit of a multi-line, multistation telephone exchange system.
Patent GB-1041993-A (GB)
Title: Polyolefin bodies
IPC: B29C44/56
Filed: 1964-11-04
Abstract: Porous polyolefin bodies have their surfaces heated to plasticization so as to modify the porous structure of the surface layer only, plasticization being defined as heating the polymer to the consistency of a very viscous liquid.  The treatment may leave a layer which is either non-porous or in which the pore size is reduced.  A second surface may also be so treated.  The polyolefin may be obtained from olefins of 2-8 C atoms, Ziegler/Phillips polyolefins being preferred.  The temperature of plasticization may be 100-250 DEG  C.  The surface opposite the one being treated may also be cooled during the process.  The porous bodies may be obtained by sintering powders.
Patent GB-1268360-A (GB)
Title: Proximity switches
Inventor: SELLWOOD RAYMOND ERNEST
IPC: H03K17/97
Filed: 1968-09-23
Abstract: 1,268,360. Inductive signalling. M.L. AVIATION CO. Ltd. 28 Nov., 1969 [23 Sept., 1968], No. 45029/68. Heading H4U. A proximity switch includes a key K, consisting of a pair of windings, W3, W4 connected in closed circuit and wound in opposition on separate cores which when brought into the position shown, completes the coupling between a pair of coils W1, W2, on similar separate cores which are in the feedback circuit of a blocking oscillator comprising a transistor T1. The resulting oscillations in a coupling coil W5 are rectified and smoothed D, C3, to operate a relay L via a transistor T2.
Patent GB-986958-A (GB)
Title: Improvements in and relating to buckles
IPC: A44B11/02
Filed: 1963-11-14
Abstract: 986,958. Buckles. SIGNODE STEEL STRAPPING CO. Nov. 14, 1963 [June 19, 1963], No. 45080/63. Heading E2A. A buckle for connecting two portions of flexible ligature 26 comprises a pair of sections 12, 13 each having a base member 15, 18 and two spaced side members 16, 17, 19, 21 connected to the base member the base members being joined along adjacent edges by an integral hinged strip 14, the strip having sufficient flexibility to permit the sections to be folded to a position in which one of the sections is superimposed on the other to securely hold the portions of ligature when each extends around one of the side members of one of the sections and under that side member of the other section which is adjacent the said one side member. In the construction shown the side members 19, 21 are joined by a connecting portion 20 so that a rectangular aperture is formed and this connecting portion has a projection 22 which extends between the side members of the other section when the two sections are superimposed to prevent displacement of the ligature from the side members 16, 17. The hinged strip 14 is thinner than the sections to increase its flexibility. In a modification the side members 16, 17 are also joined by a connecting portion.
Patent GB-1163295-A (GB)
Title: Non-Aqueous Ink
IPC: C09D11/16
Filed: 1966-10-11
Abstract: 1,163,295. Formamide-based inks. PARKER PEN CO. 11 Oct., 1966, No. 45439/66. Heading C4A. A non-aqueous ink for nib pens comprises 65-99% by wt. formamide and 1-35% by wt. colouring agent, preferably an organic water- and formamide-soluble dye. The ink may also contain 1-34% by wt. of additives including compounds which increase the hydrogen bonding in the formamide vehicle, evaporation inhibitors, hygroscopic agents and diluents, specifically sucrose, sucrose dioleate, arabitol, guar gum, raffinose, trimethylol propane, liquid polyethylene glycol, hydroxyethyl formamide, monofluoroperhalomonoalcohols, halogenated hydrocarbons, hydrazine, anhydrous LiCl or CaCl 2 , potassium acetate and glycerine. In examples inks of viscosities from 3À5-6À5 cp. at 25‹ C. are disclosed.
Patent GB-1441295-A (GB)
Title: Control valve for pulsed rocket propulsion units
IPC: F16K1/42
Filed: 1973-09-28
Abstract: 1441295 Valves MESSERSCHMITT-BOLKOW-BLOHM GmbH 28 Sept 1973 [28 Oct 1972] 45598/73 Heading F2V A valve comprising a seat part 2 and a closure member part 4 has one part (the seat part in the embodiment shown) which is provided with a plurality of concentric sawtooth ridges 3 having flat peaks 7 and which is formed of rigid material e.g. steel, and the other part which is formed of a plastically deformable material, e.g. P.T.F.E., or a polyamide and which is initially flat as at I but which after the first operation of the valve is deformed as at II. The angle between the sides of the ridges is about 120 degrees.
Patent GB-1019618-A (GB)
Title: Improvements relating to tank filters
IPC: B01D/
Filed: 1962-12-03
Abstract: 1,019,618. Filters; sedimentation. RAFFINERIE & SUCRERIES DU GRANDPONT, S.A. Dec. 3, 1962 [Dec. 8, 1961], No. 45626/62. Heading BID. A tank filter, the upper part of which encloses filtering elements and the bottom part of which is comprised of at least one funnel provided with a draining valve, is provided with a partial-draining pipe, the inlet of which is located immediately below the filtering elements and the outlet of which discharges, via a valve, into an outside vessel. In one embodiment, Fig. 1, a tank filter is comprised of upper part 2, enclosing pocket filters 3, and funnel 4 fitted with draining valve 5. Partialdraining pipe 7 discharges into an outside vessel. Liquid to be filtered enters at 16 while filtrate is discharged at nozzles 6. Periodically, pipe 7, the inlet 8 of which may be formed by an elongated hole 13, is opened and liquid supply pipe 16 closed. The liquid above the inlet of 7 is drained, and under the action of air from nozzles 6, agglomerated sludge 12 is removed from the filter elements and falls into funnel 4. The liquid removed may be recycled to the supply pipe 16. When funnel 4 is filled with sedimented sludge, it is totally drained by opening valve 5. Funnel 4 is large enough to hold the sludge from a plurality of partial drainings. Thus the ratio of solid to liquid in the material drained by valve 5 is increased. In a further embodiment (not shown), the partial-draining pipe is placed centrally under the filter elements and provided with a cap for protection against falling sludge.
Patent GB-1491715-A (GB)
Title: Method of preparing a calcium hypochlorite composition
IPC: C01B11/06
Filed: 1974-10-23
Abstract: Mixtures containing calcium hypochlorite are described which are safe to handle. They have a water content of from 16 to 22% by weight and contain at least 60.5% by weight of calcium hypochlorite, based on the dry weight of the mixture. This corresponds to a content of active chlorine of at least 60% by weight. The mixtures according to the invention do not lead to spontaneous decomposition, even if attempts are made to ignite them by spontaneous decomposition of dry calcium hypochlorite powder. Nor does combustion occur if they come into contact with flammable organic materials such as engine oil.