baber/WOPTO huggingface dataset:
Patent GB-1500221-A (GB)
Title: Process for securing support frames in underground galleries
IPC: E21D11/28
Filed: 1975-03-27
Abstract: 1500221 Ties for mine arches HANDELS-UND INDUSTR1EBEDARF GmbH & CO KG 27 March 1975 [3 April 1974] 13075/75 Heading E1E Apparatus for securing together a plurality of mine roof support frames 1 to 5 comprises a number of tie rods 6 to 9 whose ends partly encompass elements of neighbouring frames, means 19, 21 25, 29 for coupling the ends of adjacent tie rods at the same support frame so as to enclose it, and means 10, 11, 13, 16 for applying forces to said neighbouring frames longitudinally of the tunnel at locations adjacent said tie rods to tension them. The tie rod ends 6a, 6b etc. extend perpendicular to the length of the ties and are interconnected either by threaded sleeves 17, 18, 19 and spacers 20, 20a; or by a plate 21 or 25 respectively secured to the ends by nuts 22, 23 or by wedges 28 engaging slots 26, 27; or by a clamp plate arrangement 29. The force applying means may comprise wooden struts 10, mechanical jacks 11, 13 or hydraulic jacks, Fig. 1. When an hydraulic jack is used, Fig. 4 (not shown) it may have forked ends, which engage over the tie rod ends, and it may be suspended from the tie rod.
Patent GB-892164-A (GB)
Title: A pipette filling device
IPC: B01L3/02
Filed: 1960-04-13
Abstract: 892,164. Syringes. GRAF, W., GRAF. H., and GRAF., S. [trading as GRAF & CO., WALTER]. April 13, 1960 [April 13, 1959], No. 13136/60. Class 102(2). A cylinder 3 closed at its end 4, is axially movable on a plunger 6 provided with an axial passage and a sleeve shaped connecting clement 10, made for example of rubber, connects the end of the plunger to a pipette 2. The cylinder is provided with two annular ribs 5 to facilitate the holding of the device and a clip 13 having a resilient tongue 14 which bears against the plunger and acts as a friction element.
Patent GB-1076907-A (GB)
Title: Energisation of superconductive coils
IPC: H02K55/00
Filed: 1966-03-24
Abstract: 1,076,907. Superconductive electricity generators. SIEMENS -SCHUCKERTWERKE A.G. March 24, 1966 [March 24, 1965], No. 13153/66. Heading H2A. An apparatus includes a coil 2, a rotor 8 and a fixed member 5 all of superconductive material and disposed in a vessel 1 which can be exhausted and filled with a cooling medium, e.g. liquid helium, to render them superconducting, terminals of the coil being connected to spacedapart points 6, 7 on the fixed member 5, means outside the vessel for rotating the rotor 8, and an electromagnet 10 also outside the vessel and having a gap in which lies part of the rotor, the arrangement being such that energization of the electromagnet 10 magnetizes the rotor 8 which when also superconducting and rotating but with the electromagnet de-energized will induce in the fixed member 5 a voltage which will energize the coil 2. The vessel has within the coil 2 a passage in which can be disposed a specimen to be subjected to the magnetic field. The disc 5 is of lead and for higher voltages may be composed of series-connected sectors (19), Fig. 3. The rotor 8 driven via a plastics shaft 9 is a disc or cylinder of hard superconductive material and has apertures (15), Fig. 3, of number corresponding to that of polepieces 14 on one of two electromagnet flux distribution rings 12, 13. In modifications, the rotor 8 may also be segmented, Fig. 4, or formed of two rings (23, 25), Fig. 6, of different superconductive materials of which one (23) has integral teeth 24 between which may be fillers (27) of normally conducting or electrically non-conducting, e.g. plastics material.
Patent GB-131581-A (GB)
IPC: B61D17/26
Abstract: 131,581. Sebbelee, H. W. Aug. 22, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Sides, floors, and framing.-Railway and tramway vehicles are built of reinforced concrete, the base having transverse and/or longitudinal metal bars, for reinforcement with transverse and longitudinal stiffening beams underneath and carrying upwardly extending reinforced-concrete pillars to which the wooden or other sides are attached. The coupling connexions are placed beneath the vehicle at one of the main lower transverse ribs. The arrangement of bars is such that the whole structure may consist of a single casting. The base 1, longitudinal under ribs 2. transverse under ribs 3, upwardly-extending pillars 4 and similar corner pillars are made up of a framework of metal bars and concrete poured into the mould to provide n reinforced-concrete vehicle. In order to permit of this form of moulding, the pillars 4 and ribs 2 are connected by additional ribs 8, an inti. mate interlocking of the longitudinal and transverse ribs and the pillars being obtained by the arrangement of the metal reinforcement 7. The coupling 6 is attached to a transverse rib 3, the necessary anchoring bolts being positioned prior to the addition of the concrete. The walls of the vehicle are completed by wood battens 9; asbestos cement or other suitable material may be used. The pillars may be moulded with vertical grooves to take the ends of the wooden walls.
Patent GB-292663-A (GB)
Title: Improvements in step-by-step motors
IPC: H02K37/00
Filed: 1923-05-16
Abstract: 292,663. Clausen, H. May 16, 1923. Motors with unwound iron armatures; cores.- In a step-by-step motor of the kind in which the coils are energized in sequence, either singly or in groups, the stator winding is distributed in slots and the laminations of the rotor are disposed parallel with the axis of rotation. In the arrangement shown in Fig. 1, three stator coils S are connected to the segments of a distributing switch D, the dimensions of which are such that each line is successively positively energized for 150‹, dead for 30‹, negatively energized for 150‹, and dead for 30‹. Oscillation of the rotor at certain speeds is prevented by short-circuiting, by extra contacts on the distributing switch, such coil or coils of the stator as have their axes at right-angles to the flux axis on any particular step, or by the use of non-inductive resistances 15, 16, 17 in or external to the motor and connected in parallel with the stator windings, or by running two or more motors in parallel in such a way that the coils of the various motors form mutual short-circuit paths. The rotor may consist of alternate laminations of soft charcoal iron and aluminium laid in straight or curved surfaces parallel to the axis of rotation and in such a way as to follow naturally the flux path from pole to pole of the stator. Constructions of two-pole and four-pole motors are briedy described.
Patent GB-433395-A (GB)
Title: Method and apparatus for weaving fabrics containing elastic weft threads
IPC: D03J5/24
Filed: 1934-05-02
Abstract: 433,395. Weaving elastic fabrics. LASTEX YARN & LACTRON THREAD, Ltd., 32, Osnaburgh Street, and WATKINSON, F., 55, Great Marlborough Street, both in London. May 2, 1934, No. 13243. [Class 142 (iii)] The tension of elastic weft threads such as of rubber, lamb's wool, fur, &c., is controlled by a trigger 5 pivoted at 9 and normally held by elastic strips 10 so that its lower end grips the weft 3 against a rubber pad 6 in the shuttle. While the trigger is engaged by the warps, it is deflected so that its lower end frees the weft. On emerging from the shed, the trigger grips the thread and tensions it during the further movement of the shuttle. To equalize the tension whether the shuttle lays a weft when moving to the right or left, a dummy " shed " or adjustable deflecting plate may be provided on one or both sides of the loom, a part only of the reed may be utilized, or the position of the shuttle-boxes with respect to the shed may be changed.
Patent GB-1146586-A (GB)
Title: Improvements in sealing strips
Inventor: TUDOR-POLE CHRISTOPHER GEORGE
IPC: E04B1/68
Filed: 1965-03-29
Abstract: 1,146,586. Seals for joinder cracks; covers for cracks. SECOMASTIC Ltd. 29 March, 1966 [29 March, 1965], No, 13249/65. Heading E1G. A seal for a joinder crack between adjacent edges of two concrete block building units 13 comprises a T-shaped section strip of extruded aluminium or plastics having a web 5 and two flanges 6, these latter being provided with channels or grooves 14 for receiving a mastic strip, and the web 5 has a beaded end 9 which is a snap fit into a narrow mouth channel 8 of a rolled stainless steel &c., member having wings 7 which diverge towards the flanges 6, and when the assembly is pushed into the crack the wings engage the edges of the units to hold the strip in position frictionally and to form a secure baffle within the gap to form a drained joint. In a modification, the assembly may be inserted from the opposite side of the crack and sealant strips are provided in the angles between the faces of the wings, remote from the flanges and the T section and the edges of the building units. Furthermore the free edges of the wings may be U or V-shaped the open sides of which face the flanges and the T and act as drain gutters.
Patent GB-1461606-A (GB)
Title: Couplings
IPC: F16L37/00
Filed: 1974-03-26
Abstract: 1461606 Pipe couplings N G JONSSON 26 March 1974 [30 March 1973 9 May 1973 21 June 1973 21 Sept 1973] 13296/74 Heading F2G A hose coupling comprises two parts 12, 14 (Fig. 1) which fit and seal together and are provided with flanges 30, 32 thereon to abut one another, the two parts being held together by an arcuate spring clip 16 engaging the flanges 30, 32. In the construction shown in Fig. 3 the two coupling parts 42 are identical and are each provided with a male screwthreaded spud for connection with a hose, a hexagonal body part 48 and a projection 50 with a flange 52. A bore 54 is formed in the parts 42 and is joined by a frusto-conical step 58 with an enlarged part 56. Sealing between the coupling parts 42 is effected by a connecting part 44 of cylindrical form and provided with grooves 66 containing O-rings 68. The steps 58 serve to locate the connecting part 44 in place but in an alternative construction the part 44 may be provided with an encircling circlip which abuts the front faces 61 of the parts 42. In further alternative arrangements, the connecting part 44 may be plain and the 0-rings located in grooves in the enlarged parts 56 of the bores 54, or the connecting part may be formed integral with one of the coupling parts, so that male and female coupling members are provided. The couplings may be utilized in a right-angled connector or with a connector received in a bore in a block and welded, brazed or glued in position. The spring clip 16 is preferably as shown in Fig. 9 and is of spring steel having two end portions 180 each providing a pair of opposed flanges to engage with and hold the flanges on the coupling parts and an intermediate resilient portion 182. Transverse cuts may be provided in the portion 182 to increase flexibility, and the end portions 180 may be extended and formed with apertures to allow a wire to be used to hold the ends together. If desired the flanges on the clip and the coupling parts may be mutually inclined inwardly towards the middle of the coupling.
Patent GB-290613-A (GB)
Title: Improvements in or relating to methods of treating hydrocarbon gas or the like
IPC: C07C29/16
Filed: 1928-05-05
Abstract: 290,613. Empire Gas &. Fuel Co., (Assignees of walker, J. C.). May 17, 1927, [Convention date]. Drawings to Specification. Waste and natural gases, utitazing.-Hydrocarbon gases such as natural gas and gases derived from coal, petroleum, or shale are treated to produce oxidation products particularly methyl and other alcohols, formaldehyde, acetaldehyde, and propionic aldehyde, by adding a relatively small quantity of oxygen not exceeding 10 per cent by volume, and treating the mixture with a catalyst at suitable temperature, and pressure, the proportions, conditions, and time of contact with the catalyst being chosen to give the desired reaction products. The gas left after the condensation of the products may be a combustible gas of uniform calorific power and suitable for use. The catalyst may be used upon porous material such as pumice, asbestos, or alundum, and may be employed as a thick bed or in a number of shallow trays. The catalysts mentioned are those favouring dehydration, dehydrogenation, or oxidation, including platinum, palladium, chromium, manganese, iron, copper, nickel, gold, silver, oxides of copper, manganese, iron, nickel, vanadium, chromium, molydenum, cerium, and other metals forming higher and lower oxides or mixtures of such substances. A platinum catalyst containing 10 grams of platinum in a cubic foot of pumice is suitable. The air and gas may be preheated, for instance, by heat exchange with the reaction products, and the process may be effected by adding the oxygen in several stages, each followed by catalytic treatment and cooling to condense the products, and the temperature in the catalytic chamber which is preferably kept at 800-900 F. may be controlled by the degree of preheating, the proportion of oxygen, or by introducing steam into the reaction chamber, though this last method is not usally advantageous. Diluents may be admixed with the gases, such as nitrogen (i.e. using air as the source of oxygen) or hydrocarbons which are too stable to react under the.prevailing conditions. The oxygen may also be supplied pure, or in the form of ozone, carbon oxides, &c. Other details mentioned are the use of less than 50 per cent (preferably 4 to 20 per cent) of air, preheating to within 50-100 F. of the reaction temperature, using a pressure of 300 lb. per sq. inch. and a time of contact of  to 4.2 seconds. Specification 199,886, [Class 2 (iii), Dyes &c.] is referred to.
Patent GB-202036-A (GB)
Title: Improvements in electrical transformers
IPC: H01F27/36
Filed: 1922-05-11
Abstract: 202,036. British Electric Transformer Co., Ltd., and Roothaan, J. May 11, 1922. Transformers.-In order to reduce the leakage reactance of a transformer below that normal to the construction of the transformer, one or more metal tubes d, or other means for neutralizing or reducing the leakage flux, are placed in the annular air space between t'he windings a, b.
Patent GB-551730-A (GB)
Title: Improvements connected with hand shears for removing plaster casts or bandages
IPC: A61F15/02
Filed: 1941-10-17
Abstract: 551,730. Cutting plaster bandages. GREVILLE, E. G. (Aandewiel, C. J., Eerhard, J. M., and Eerhard, C.). Oct. 17 1941, No. 13413. [Class 81 (ii)] [Also in Group XXIII] Hand operated shears for removing plaster casts or bandages comprise a body 3 having a fixed arm 1 and an operating lever 2 pivoted at 7 and connected by links 9 to a slide 4 carrying a cutter 5 co-operating with an anvil 20 at the end of a guide 19 having a guide slot 21 for a guide block 29 carried by ears 28 on the cutter. The latter has a channel shaped cutting end and the anvil has a similar shaped projection 32 to give a shearing action. The guide slot 21 ha's cutting edges 30, 31 at the end co-operating with the block 29 to break up any cuttings entering the guide slot. Specification 550,463 is referred to.
Patent GB-134998-A (GB)
IPC: B21D28/04
Abstract: 134,998. Allan, G. Dec. 7, 1918. Punching.-In a punching-machine, the punch slide C is lifted on the return stroke 'by cams A, the pivots A<1> of which are preferably adjustable vertically by screws E, so that the punch rests just clear of the plate to be punched, while the lever F completes the upper part of its movement. The correct positioning of the plate is thus facilitated.
Patent GB-131448-A (GB)
Title: Improvements in Means for Cutting and Trimming of Hedges, Shubbery, Grass, Bracken, Corn, and the like.
Inventor: WHITTLE DANIEL
IPC: A01G3/047
Filed: 1918-08-21
Abstract: 131,448. Whittle, D. Aug. 21, 1918. Sickles.-A tool for cutting and trimming hedges, shrubbery, grass, corn, bracken, &c. comprises a sickle-like blade and a double blade adjustably pivoted together, one element of the double blade acting as a stop for the material being cut, and one of the blades being provided with an arm for sweeping the cut material over the other. The stop-bar d is arranged a short distance above the straight cutting-blade c and so that its edge is coincident in plan with the cutting-edge of the blade c. It is held in place by a washer e on the pivot pin b of the curved blade a. The free ends of the blade c and bar d may be bent away from one another. The cutting blades a, c are drawn together by means of a bolt g between the pivot b and handle f. An arm or claw h is fastened to the curved blade a to sweep the cut material over the double blade. The curved blade may be provided with a perforated projection j, Fig. 4, to allow of adjustment of the pivot pin b. Interchangeable handles of different lengths, angles, &c. may be provided. The tool may be used in place of a sickle, and as a " ripper " or tool for separating material by gripping it between the points a<1>, d<1> and pulling sharply. According to the Provisional Specification, the tool may be provided with one or more cutting-blades and two or more non-cutting blades. and with claws or arms h on both blades so that the out material may be gripped between them.
Patent GB-1532262-A (GB)
Title: Photodiode circuit arrangements
IPC: H04B10/69
Filed: 1976-04-03
Abstract: 1532262 Avalanche photo-diode circuit FERRANTI Ltd 31 March 1977 [3 April 1976] 13620/76 Heading G1A A photo-diode circuit has an avalanche photodiode D 1  with a positive temperature coefficient of breakdown voltage connected to an electrical supply with the P-N junction reverse biased by a voltage determined by limiting means Z 1 , Z 2 , Z 3 , Z 4 , changeable between two values, the higher equal to its breakdown voltage at a desired operating temperature, the detection of radiation taking place after changing to the lower voltage, the P-N junction being substantially at the desired operating temperature. The output from D 1  is via amplifier A 1 , shunt diode D 2  becoming forward biased when the current is excessive. The higher and lower reverse bias voltages are determined by Zener diodes Z 1 , Z 2 , Z 3 , Z 4  and Z 1 , Z 2 , Z 3  respectively. A sawtooth waveform Fig. 3 (not shown) is applied to the circuit of Fig. 4 with a peak rectifier charging large capacitor C 1  to the lower voltage across Z 1 , Z 2 , Z 3 . Smaller capacitor C 2  charges to the larger voltage. When the supply voltage is switched to zero, C 2  is discharged to acquire the lower voltage of C 1 . In Figs. 5 and 7 (not shown) the limiting means is a voltage regulator. Ways are shown of protecting D 1  from prolonged excessive radiation. In one method in Fig. 4 an auxilliary non-avalanche photo-diode D 1 ' operates a by-pass means 40.
Patent GB-954421-A (GB)
Title: Improvements relating to brakes
Inventor: DAVIS JOHN WALTER
IPC: F16D65/847
Filed: 1959-04-22
Abstract: 954,421. Disc brakes. GIRLING Ltd. April 22, 1960 [April 22, 1959], No. 13656/59. Heading F2E. A vehicle disc brake has a sleeve 55 fixed to a non-rotatable axle casing 56 having an extension 62 forming a calliper 67 over a disc 51 fixed to a rotatable sleeve 53, pads 71 being applied to the disc by fluid pressure actuators 68, 69 formed in the calliper limbs ; the sleeve 53 and disc 51 rotate on bearing 54 and are driven at a higher angular speed than wheel 66, 67 by gearing 64, 63, 58, 57 and shaft 59. The sleeve 53 carries vanes 72 to draw in cool air which is forced to flow over the disc by a deflector 73 on flange 62. According to the Provisional Specification the disc, in the form of a ring, rotates with a wheel and the friction pads are carried by a calliper which is rotated at a higher speed than, and in the opposite direction to, the disc.
Patent GB-474461-A (GB)
Title: Improvements in dead bait spinner
IPC: A01K83/06
Filed: 1936-05-15
Abstract: 74,461. Fishing-tackle. STANLEY, W. May 15, 1936, No. 13753. [Class 48] Dead bait is secured to the line at a point remote from its head by a device which causes spinning by reason of the eccentric hold and without the use of fins, bending the bait, &c. The device is entered into the bait to the desired depth and fixed by usual means such as spear points, clips, or ties. Fig. 3 shows the device entered into the fore end of a bait and Fig. 2 a device for entering the rear end.
Patent GB-570272-A (GB)
Title: Improvements in planimeters
IPC: G01B5/26
Filed: 1943-08-24
Abstract: 570,272. Planimeters. SANKEY, G. R. Aug. 24, 1943, No. 13760. [Class 106 (i)] A planimeter comprises a bed A having bearings on which rest a spindle c carrying a cone C. Figs. 1 and 2. The turning motion of handle c<1> is transferred to a screw E by means of bevel wheels (not shown), screw E in turn transfers the motion to a nut F which is attached to a table B and so causes the table B to move along the bed A on' grooved wheels b<3> running in rails a, a. The registering device H is on the upper end of a carriage G which can be moved along a guide rod g by a handle h<2> and has, at one end, a registering wheel h<1> adapted to engage on the surface of the cone C. The wheel h<1> engages a train of numbered wheels within the registering box. Above the tracing pointer which is a central spot on a circular window J secured to the carriage G is a wire K forming a loop k at its end. There are also two other pointers n<2> on pinion n and n<1> on wheel N and a shield M covering the cone C. The diagram to be measured is pinned on the table B, the handle c<1> is turned and carriage G moved to bring a portion of the line of the diagram under the spot on the window J. The cone C is stopped with the pointer n<2> pointing to the centre of wheel N which is removed and replaced with its pointer n<1> pointing to the centre of the pinion n. The carriage G is then adjusted accurately on to the line of the diagram by means of the handles c<1> and h<2>. When the spot on the window J has been traversed completely round the line of the diagram, the pointers n<1> and n<2> will be back at their initial positions. The difference between the final reading now taken on the register and the initial reading gives a measure of the area of the diagram. The movement of the table takes into account the length of the diagram while the registering wheel h<1>, by engaging the various diameters of the cone C, registers the average height of the diagram. A disc could be employed instead of a cone.
Patent GB-935936-A (GB)
Title: Improvements in photographic projectors
IPC: G03B21/00
Filed: 1962-04-10
Abstract: Water-wettable rutile TiO2 pigment is produced from hydroclassified rutile calciner discharge by adding a sulphate free flocculating agent, dewatering and then making an aqueous slurry and adding sulphates free water-soluble salts of titanium, aluminium or silicon or of other Group III-V metals, heating to 20-100 DEG  C. and adding acid or alkali to give pH 6.5-8.5 when insoluble oxide or hydroxide coatings are precipitated on to the rutile titanium dioxide pigment. Flocculating agents specified are alkali metal or alkaline earth metal halides especially chlorides. Coating agents which may be mixed are titanium tetrachloride, tetrafluoride, tetrabromide and perchlorates, sodium aluminates, aluminium chloride, nitrate, and acetate, sodium silicate, metasilicate, potassium metasilicate and tetrasilicate.
Patent GB-1375319-A (GB)
IPC: C07C45/38
Filed: 1972-03-24
Abstract: 1375319 Formaldehyde from methanol BADISCHE ANILIN- & SODA-FABRIK AG 24 March 1972 [25 March 1971] 13822/72 Heading C2C Formaldehyde is prepared by the oxidative dehydrogenation of methanol in the presence of a silver catalyst at an elevated temperature wherein crude methanol is caused to impinge in vapour form against baffle plates before entering the catalyst zone, the impurities which separate at said baffle plates in solid or liquid form being collected. The reaction is preferably carried out using a gas mixture consisting of crude methanol vapour, air, off-gas and water vapour at a temperature of from 550 to 750 C. and at a pressure of from 0À5 to 2 atmospheres. Many embodiments of suitable apparatus are described.