baber/WOPTO huggingface dataset:
Patent GB-288088-A (GB)
Abstract: 288,088. Robinson & Son, Ltd., T., and Lawrence, H. W. Sept. 7, 1927. Printing-surfaces.-A printing block or surface for obtaining representations of the surface of wood or other natural material composed partly of hard and partly of soft substance is prepared by treating the surface of a block of the wood &c. with sand to remove the softer parts of the surface and smoothing the surface to remove any roughness caused by the sand. The block may be used directly for printing or may be used to impress a matrix which forms the actual printing- surface. The sand may be applied as a blast or the block may be scrubbed with sand and water; a solvent or softening agent for the substance removed may be used in addition.
Patent GB-501376-A (GB)
Title: Improvements in or relating to sealed vessels for electric discharge devices
IPC: H01J5/20
Filed: 1937-10-22
Abstract: 501,376. Uniting metal to vitreous and ceramic material by heat. BERRY, R. J. (Lorenz Akt.-Ges., C.) Oct. 22, 1937, No. 28868. [Class 36] [Also in Group XL] A vacuum vessel comprises a glass envelope 3, Fig. 4, with a ceramic or metal cover 4 which is sealed by a melt 5 to an annular intermediate member 1 made of hard glass or ceramic material, or a mixture of glass and ceramic materials, this intermediate member being united with the glass envelope. In the example. the cover 4 serves as a receptacle for a glass melt 5. Radial lugs 14 within the intermediate member 1 provide a mounting for electrode supports 10 which are connected to leading-in wires 9 in the cap by wires 16 embedded in the melt 5. The glass envelope 3 overlaps and is sealed around the upper edge of the member 1. Fig. 6 shows a modification wherein a ceramic intermediate member 1 sealed to a glass envelope 3 is secured by a covering melt 5 to a metal cover consisting of an annular part 30 and stem 4. The melt consists of a glass material which is placed on the metal cover and heated by high-frequency currents induced therein. The melt also seals leading- in wires 16 passing through apertures 34 in the stem 4. In a further modification the intermediate member is located within the flared lower end of a glass discharge vessel and is flush with the opening thereof which is sealed within a glass melt in a dished cover. Radial arms within the intermediate member provide supports for leading-in wires which are fixed thereon by solder or hard glass. The coefficient of expansion of the intermediate member is preferably of a value intermediate those of the envelope and cover. The melt may consist of a glass containing molybdenum oxide or other molybdenum compound.
Patent GB-880163-A (GB)
Title: Improvements in or relating to distributors, notably for feeding machine-tools and the like
IPC: B23Q7/04
Filed: 1959-08-24
Abstract: 880,163. Blanks transferring in metal-working presses. SOC. ORNANAISE DE CONSTRUCTIONS MECANIQUES. Aug. 24, 1959 [June 29, 1959], No. 28878/59. Class 83 (4). A distributer for automatically feeding workpieces to a machine and comprising at least one gripping arm adapted to be reciprocated by a fluid-operated piston is provided with a braking device through which the cylinder controlling the alternate movements of said gripping arm is exhausted, said braking device being of the slide valve type actuated from the piston and adapted to retard the movement of said piston during a predetermined time period prior to the completion of its stroke in either direction. The braking device retards the movement of the piston only when the gripping arm engages end abutments, the subsequent movement of the piston controlling the vertical movement of the gripping arm taking place at a normal speed. The braking device comprises a distributer disc 1 movable angularly about a fixed shaft 57 by means of a piston 3 actuating rack-and-pinion gearing 4-58. The disc 1 controls the alternate movements of the gripping arms 59 by means of a connecting rod 60 pivotably connected to the disc and to the pivotal support 63 of the gripping arm. The vertical reciprocations of the gripping arms are controlled by a peripheral cam face 66 on the disc 1 engaging a follower 68 attached to one arm of a pivoted double-armed lever 67 the other arm of which acts on the base of the gripper support 63 to move it the required vertical distance. Connected to the rack 4 which oscillates the disc 1 is a slide 8 (Fig. 3, not shown), for actuating the slide valve 15 of the braking device 9. The slide valve operates in a distributer block 17 formed with at least two inner passages 33, 34 for the inlet and the exhaust air respectively to and from the pneumatic cylinder of the piston 3. An inner bore communicating with said passages houses the slide-valve 15. Between the aforesaid passages 33, 34 is situated an inner branch passage 38 of relatively reduced diameter through which the air is caused to flow during the braking period. The inner branch passage 38 houses a needle valve or like throttling member 39 for adjusting the cross-sectional area of the passage and therefor the braking time, whereby the duration of the feed and return strokes of the gripping arm can be adjusted as required. The slide valve 15 is damped by a spring-loaded bar 19.
Patent GB-259410-A (GB)
Title: Improvements in can openers
IPC: B67B7/70
Filed: 1925-11-16
Abstract: 259,410. Edlund, H. J. Nov. 16, 1925. Opening by cutting.-A can-opener comprises a bracket adapted to be secured to a table and providing a supporting plate 1, Fig. 1, for the can to rest on, and a sleeve portion 3 having a non- circular bore 9 supporting a slidable rod 10, the box and rod being inclined slightly to the vertical as shown in an exaggerated manner in Fig. 4. To the upper end of the rod is fitted a housing 12 open at the side nearest the can, and carrying a pendant cutting blade 32 and a toothed rotor 14 adapted when rotated to engage the vertical wall of the can to feed it towards the cutter. The housing contains a vertical shaft 20, see Fig. 5, to the lower portion of which is screwed the rotor; the upper end of the shaft terminates in a lug 43 straddled by arms 42 on a crank handle 41, the arms being adapted, when the handle is raised, to bear on and depress a sleeve plunger 40 mounted on the shaft. To ears 23 on the front of the housing is pivoted a bellcrank 26 the forks 28 of which take between the plunger 40 and a washer 29 slidable above a spring 30 on the shaft 20. The depending part 31 of the bell-crank carries the cutter blade 32. Movement of the crank handle 41 to the raised or dotted line position, Fig. 1, depresses the plunger and causes the cutter blade to be moved outwardly; if a can is then placed in position on the plate 1 a slight blow on the top of the handle causes the blade to penetrate the top. To complete the opening of the can the handle is turned down to the full line position and rotated, cutting out the end, the can being turned by the action of the rotor.
Patent GB-1556749-A (GB)
Title: Electrode arragements for picking up electrical body potentials of low voltage
IPC: A61B5/296
Filed: 1976-07-13
Abstract: In order to prevent the measurement of interference potentials in the case of plate electrodes, in particular of electromedical measuring instruments, intended for tapping body potentials, provision is made for an electrode arrangement consisting of a conducting or semiconducting material. The contact surfaces of at least two mutually isolated electrodes (3, 5, 6) are provided with a multiplicity of pointed projections (7) intended to penetrate the epidermis. These many projections (7) of the electrodes render superfluous electrode pastes or conductivity creams for overcoming skin resistance. <IMAGE>
Patent GB-673124-A (GB)
Title: Improvements in or relating to drill bits
IPC: E21B10/36
Filed: 1949-11-14
Abstract: 673,124. Percussive drills. SOC. OUTIMINES SOC. AR.L. Nov. 14, 1949 [Nov. 27, 1948; Oct. 18, 1949]. Nos. 29067/49 and 29068/49. Class 124. A rock drill bit for percussive and rotary operation has at least one cutting edge a portion of which remote from the centre is an involute of a circle. As shown, the cutting edge comprises a straight line portion AB and a portion BC forming the involute of a circle. The part AB may be merged into the part BC by a circle tangential to both the straight line and the involute as shown on the left hand side of Fig. 1. Fig. 2 shows a bit having four cutting edges t', t<SP>2</SP>, t', t<SP>4</SP>, the surfaces c<SP>1</SP>-c<SP>4</SP>, ahead of each in the direction of rotation, forming, with the concave trailing surfaces h<SP>1</SP>-h<SP>4</SP> of the edge in front, a groove for the discharge of dust. Cleaning fluid may be introduced centrally as shown, or laterally, Fig. 6 (not shown). One cutting edge may be carried diametrally across the bit.
Patent GB-1483002-A (GB)
Title: Syringes
IPC: F04B53/12
Filed: 1975-07-10
Abstract: 1483002 Syringes; discharging liquids by direct air pressure CARL SCHLEICHER & SCHULL K G 10 July 1975 [11 July 1974] 29099/75 Heading F1R The piston 2 of a syringe may be withdrawn from the cylinder by means of a handle 11 until a stop 14 engages the end cap 12, whereby liquid can be drawn through the opening 15 into the chamber 16. The piston 2 is formed with a cylinder 7 in which a piston 4 is reciprocable by the handle 11. The pistons 2, 4 are provided with valves 18, 21 whereby on reciprocation of the piston 4 air is drawn in through valve 21 and discharged through valve 18 into the chamber 16 to free the liquid therein through the opening 15.
Patent GB-795780-A (GB)
Title: Improvements in or relating to the production of moistureproof films coated with vinylidene chloride copolymers
Inventor: BERRY WILLIAM
IPC: C08J7/056
Filed: 1955-10-12
Abstract: 795,780. Moistureproof coatings. BRITISH CELLOPHANE, Ltd. Oct. 8, 1956 [Oct. 12, 1955], No. 29109/55. Addition to 703,010. Class 140. Moistureproof film, sheet or like material is produced by applying to a base film of a watersensitive non-fibrous organic material, e.g. regenerated cellulose, lowly substituted cellulose ether or ester, alginic acid derivative, polyvinyl alcohol, gelatine or casein, a partially condensed hydrophilic urea-formaldehyde resin from an aqueous dispersion of pH 5 to 2, drying the treated film without curing the applied resin to an hydrophobic state and then applying to the dried film an aqueous dispersion of vinylidene chloride copolymer of pH 5 to 8 and finally heating to evaporate the water, cure the applied resin to an hydrophobic state and to consolidate the surface coating. The vinylidene chloride copolymer comprises 92 to 96 per cent vinylidene chloride. 7¥ to 2 per cent of methyl methacrylate, acrylonitrile and ethyl acrylate or any two or all three of said compounds, and itaconic or citraconic acid or anhydride or mesaconic acid or mixtures thereof. The water is finally removed from the coated film by heating until 14 per cent of less (based on the weight of the oven dry film) remains. The term " urea " includes " thiourea " and the term " urea formaldehyde " includes " urea-formaldehydealiphatic alcohol resins.
Patent GB-461578-A (GB)
Title: A device to be worn in the ear for eliminating or damping noise reaching the ear of the wearer
IPC: A61F11/08
Filed: 1935-10-22
Abstract: 461,578. Ear appliances. HALLE, H. G. Oct. 22, 1935, No. 29123. [Class 81 (ii)] A device for application to the ear for the purpose of excluding sound comprises a wad 3 of fluffy material, preferably cotton wool, impregnated with a substance, e.g. paraffin wax which is substantially non-plastic at ordinary temperatures but becomes plastic at body temperature. A loop of thread 2 is attached to the core or wad 3 for use in withdrawing the device from the ear.
Patent GB-900667-A (GB)
Title: Improvements relating to cable clamps
IPC: H01R4/50
Filed: 1960-09-16
Abstract: 900,667. Supporting cables. BURNDY CORPORATION. Sept. 16, 1960 [Sept. 23, 1959], No. 29193/60. Class 36. [Also in Group XXV] A cable clamping arrangement comprises a conical body 10 with a longitudinal slot 12, to allow insertion of the cable, and internal tapered grooves 14, 16 into which fit slidably internally grooved jaws 18, 20, the jaws being connected by a wire handle 26 shaped at 28, so that the jaws grip the cable lightly in their extended position. The lower end of the handle 26 is bent into a semicircle 30 which butts against the end of the body 10 and prevents the jaws 18, 20 becoming detached from the body. Ears 32 with dots 35 (Fig. 1) are provided in which the shaped ends 38 of a bail 34 are inserted, the bail being supported on an insulator. Alternatively (Fig. 4), the bail ends 34A may be doubled back and inserted in holes 35A.
Patent GB-264632-A (GB)
Title: Improvements in and relating to presses for use in pleating, embossing or otherwise treating textile and other materials
IPC: D06J1/00
Filed: 1925-11-19
Abstract: 264,632. Ciment, F. Nov. 19, 1925. Pleating.-Fabrics are pleated by being interposed between a die and a soft damp pad, to which pressure is applied by an electricallyheated member 3, Fig. 1, of a press. The fabric is placed on the die, which is arranged on the lower member 8 of the press and a pad of felt saturated with water is placed on the fabric. Pressure is now applied by worm gearing 9, the material at the same time being subjected to a damp heat due to the member 3 and the felt pad, so that the pleating remains permanent when the material has dried. The heating device consists of a number of resistance elements 13, Figs. 2 and 3, in grooves 14 in a backing of asbestos sheets 16, the elements being connected in series by terminals 18 so that if one element burns out it can be replaced easily. The elements 13 are covered bv mica sheets 12 to the outside of which is fixed by bolts 17 a plate 11 of brass, aluminium, or other heat-conducting material which forms the operative face of the press member 3.
Patent GB-292010-A (GB)
Title: Foldable drawing board
IPC: B43L13/00
Filed: 1927-11-02
Abstract: 292,010. Gaynor, T. F., and Warn, F. G. Nov. 2, 1927. No Patent granted (Sealing fee not paid). Drawing-boards.-A foldable drawing-board consists of two rectangular sections A, B, hinged together, and having in their edges sockets to receive dowel pins F on clamps F<1>, F<2>, whereby the sections are held in extended position. The edges of one or both sections may be flanged, so as to form a cavity to accommodate drawing- instruments, paper, &c., when the sections are folded together. A removable partitioned tray may be provided for holding such articles. The clamps F<1>, F<2> are of angular cross-section, so as to project under the board, and support it when placed on a table. Spring metal clamps H may engage over the adjacent flanges to assist in holding the sections extended. The board may have a detachable handle, and a hook or catch for holding it closed.
Patent GB-641563-A (GB)
Title: Improvements in or relating to toys with automatic steering devices
IPC: A63H17/41
Filed: 1947-11-03
Abstract: 641,563. Mechanical toys. THOMPSON, G. T. Nov. 3, 1947, No. 29243. [Class 132 (iii)] A mechanical toy is provided with a pair of running wheels on a driving axle, at least one other running wheel spaced from the latter, an auxiliary wheel set an at angle to such other wheel or wheels but normally clear of the ground or floor, and means for periodically depressing said auxiliary wheel so that the toy is tilted about its driving axle and its course determined for the time being by the setting of said auxiliary wheel. As shown, the rear axle 3 of a four wheeled vehicle is driven by clockwork mechanism, on the winding spindle 7 of which is mounted a cam 10, said cam having three noses adapted to engage successively the rear end of a lever 11. The other end of the lever is deflected out of the central vertical plane of the toy and carries a steering wheel 12 lying in a plane at a substantial angle to those of the front wheels 2. The lever 11 is pivoted in a bracket 14 mounted on the chassis, and a torsion spring 15 is provided to keep the lever in contact with the cam, thus causing the wheel 12 to be periodically raised and lowered, thus lifting the front wheels off the ground and changing the course of the vehicle. The noses of the cam may be evenly or unevenly spaced, or there may be a plurality of cams of the same or different profile with means for bringing the lever 11 into contact with any one particular cam. If desired a plurality of levers 11 and auxiliary wheels 12 may be provided. The wheel 12 may be provided with a tyre of rubber or rubber substitute. The toy may have three wheels for example, a scooter provided with a human figure which appears to control the change of course. Clockwork, electric or any other driving means may be used to drive the toy.
Patent GB-637829-A (GB)
Title: Improvements in and relating to clutch actuating means for epicyclic gearboxes
IPC: F16D25/08
Filed: 1947-11-03
Abstract: 637,829. Operating clutches. WILSON, A. G., MILLER, A. A., and SELF-CHANGING GEAR CO., Ltd. Nov. 3, 1947, No. 29262. [Class 80 (ii)] [Also in Group XXVI] The spring-released direct-drive cone or disc clutch 13 of a change-speed gear including a number of reaction-braked planetary trains 5, is engaged by compressed air or hydraulic fluid applied to the right face of a non-rotatable co-axial annular piston 21, which acts on the presser-plate 31 through a ball thrust-bearing 28 and slides on guide-pins 23 in a fixed cylinder 20 secured to the casing end-wall, and having a smaller bore in which slides a stepped-down portion 24 of the piston. U-sectioned syntheticrubber seal-rings 22, 25 are provided, one, 22, carried i n a groove in the piston, the other, 25, recessed in the cylinder-face, the seal-lips being so disposed that relative movement between the piston and cylinder in the pressure direction opposes any tendency for the seal material to be extruded into the working clearance.
Patent GB-1131586-A (GB)
Title: Improvements relating to dispenser cathodes
IPC: H01J1/28
Filed: 1967-06-26
Abstract: 1,131,586. Cathode materials and processing. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 26 June, 1967 [24 June, 1966], No. 29360/67. Heading H1D. A dispenser cathode emissive body is manufactured by preparing a homogeneous mixture of barium carbonate, calcium carbonate and aluminium oxide by co-precipitation from a single solution, making a slurry of the mixture and a soluble organic compound, e.g. sucrose, drying the slurry and grinding the dried slurry to form a powder, mixing the powder with a tungsten powder having a maximum particle size of less than 3 Á, then pressing the tungstencontaining mixture using a pressure of at least 20,000 kgm/sq. cm. to form a body and finally heating the body to degas the material and convert the co-precipitated mixture into an aluminate and to form a sintered body. In addition the co-precipitated mixture may be dried and the slurry prepared using a solution of the soluble organic compound. In an example the tungsten-containing mixture comprises 93% by weight W powder of particle size less than 0À5 Á, 0À2% by weight sucrose and 6À8% by weight of co-precipitated BaCO 3 , CaCO 3  and Al 2 O 3  in molar ratio of 5: 3: 2 respectively, and a pressure of at least 25,000 kgm/sq. cm. is used. The very fine tungsten particles may be prepared by the reduction of gaseous tungsten chloride with hydrogen.
Patent GB-905350-A (GB)
Title: Improvements in and relating to ferro-resonant bi-stable electric circuit arrangements
Inventor: LORCH HUGH OLAF
IPC: H03K19/164
Filed: 1957-09-18
Abstract: 905,350. Inductors. ENGLISH ELECTRIC CO. Ltd. Sept. 18, 1958 [Sept. 18, 1957], No. 29372/57. Class 38 (2). [Also in Group XXXIX] An inductor for use in a ferroresonant circuit as described in Specification 905,349 (see Group XXXIX), comprises two thin strips 10 of ferromagnetic material each sheathed by a ceramic tube 11 and carrying a bias winding 14, trigger control windings 13 and a magnetizing winding 12. The bias and trigger windings act in the same sense on both cores and the magnetizing windings act in opposite senses so that the inductor; when energized by alternating current in the magnetizing winding, has the B-H magnetization characteristic shown.
Patent GB-1085683-A (GB)
Title: Explosively joining metal members
IPC: B23K20/08
Filed: 1966-06-30
Abstract: 1,085,683. Welding by pressure. E. I. DU PONT DE NEMOURS & CO. June 30, 1966 [April 14, 1966], No. 29458/66. Heading B3R. A method of explosively welding an edge surface of a metal member to another member spaced slightly therefrom comprises applying an explosive compressive force to a face adjacent to the edge surface and in a direction substantially parallel to the edge surface and restraining the metal member from moving in this direction so that metal is caused to move into the space, i.e. at right angles to the compressive force to bond with the other member. Metal plates 1, 2 spaced by a standoff distance 3 are welded on parallel edge surfaces 1<SP>1</SP>, 2<SP>1</SP> by progressive detonation of explosive charges 4, 5, 6, 7, plates 8, 9, 10 serving to cover the standoff 3 to prevent products of the explosion entering the weld area. Simultaneous initiation of the detonation of the explosive charges 4 ... 7 is achieved by the use of a sheet 11 of explosive covering the ends of the four charges and detonated centrally by a blasting cap 12. One or more of the explosive charges may be replaced by an anvil or anvils which serve to prevent movement in the direction of the compressive force. The method is applicable to the joining of pipes, rods, bars to similar articles or to the major, i.e. non-edge, surfaces of other metal articles. Where, as in the case of joining pipes, the explosive charge is detonated simultaneously over its whole length the faces to be welded are chamfered or bevelled (Figs. 3-6, not shown). Metals referred to as suitable include copper, iron, nickel, titanium, vanadium, zirconium, aluminium, columbium, tantalum, silver, platinum and gold and alloys thereof.
Patent GB-653803-A (GB)
Title: Synthesis of the amino acid, d;1-methionine
Filed: 1947-11-05
Abstract: dl-Methionine is prepared by treating b -methylmercaptopropionaldehyde with an alkali metal bisulphite to give the bisulphite addition product, treating this with an inorganic cyanide to give b -methylmercaptopropionaldehyde cyanohydrin, treating this with ammonium bicarbonate, carbonate or carbamate to give methionine hydantoin, and hydrolysing this to dl-methionine. The bisulphite may be sodium or potassium, and the inorganic cyanide may be the alkali metal, alkaline earth metal, e.g. magnesium, or ammonium salt.  The reactions may be performed in an aqueous medium, or in an aqueous water-soluble organic solvent such as a lower aliphatic alcohol, e.g. methanol. In the examples, dl-methionine is prepared by the above sequence of reactions, the hydantoin being hydrolysed with aqueous sodium hydroxide at 100 DEG  C.