baber/WOPTO huggingface dataset:
Patent GB-103574-A (GB)
Title: Improvements in connection with Railway and other Vehicles.
Inventor: CRADDOCK THOMAS FLEWETT
IPC: B61F5/06
Filed: 1916-01-20
Abstract: 103,574. Craddock, T. F., (Burn & Co., and Craven, A.). Jan. 20, 1916. Springs, arrange. ment of.-Relates to a truck having an inner frame resiliently supported within the main truck frame. The bolster spring- plank 11 is supported through links 13 from cross-beams 10, each of which is supported at each end through a spring 8 on the inner frame 6 carrying cross-beams 5, which are each similarly supported at each end through a spring 4 on the outer frame 1. The invention is particularly applicable to the truck described in Specification 17565/14.
Patent GB-1327562-A (GB)
Title: Clamp
IPC: B60P7/13
Filed: 1972-02-04
Abstract: 1327562 Clamps EMAIL Ltd 4 Feb 1972 [4 Feb 1971] 5309/72 Heading E2B A clamp for two components 47, 48 has a body 12 for attachment to one component, an elongate clamping member having an offset clamp pad 23 for engagement with the other component and rotatably movable as well as moveable along its axis between a retracted clamping position and an extended release position, biassing means providing the clamping force, means for moving the member and to render the biassing means operative when the member is in the retracted position and a projection 27 on the clamping member for rotating the member, and the body having a recess 26 adapted to receive the projection when the clamping member is in the retracted position to prevent rotation of the pad 23. A handle 40, pivoted to the body 12 moves a housing 28 through links 38 and a transverse pin (34) Fig. 2 (not shown) in the housing to move the member. The projection 27 in a slot in the body is turned through 90‹ to hold the pad 23 extended while the component 47. is positioned against component 48, the projection 27 is turned back 90‹ and locates in recess 26 to allow retraction of the pad 23 by handle 40 from a clamping hole 49 in component 48, the pad being held by a stack of Belleville washers providing the clamping force. A spring biassed latch 43 locates over a lip 46 in the body 12 to hold the handle 40 so that the pad 23 is in the retracted position.
Patent GB-805474-A (GB)
Title: Improvements in or relating to packing for cooling towers
Inventor: SPRENGER JOSEF
IPC: B01J19/32
Filed: 1956-02-21
Abstract: 805,474. Contacting gases with liquids. MASCHINENBAU-AKTIENGESELLSCHAFT BALCKE. Feb. 21, 1956, No. 5326/56. Class 55 (2). [Also in Groups XIII and XXV] A cooling tower is provided with packings made of coconut fibres. In the preferred embodiment, mats or cloths 10 made from plaited, woven, knotted or felted fibres or yarns are provided with metal strips bulged between their ends which are secured to the mat to form eyes for engagement with hooks 13 carried by beams 12. Each hook has an integral clamping part 14 and pointed parts 15 to engage the beam. Double hooks may be provided on the two inner series of beams 12 to support a central series of mats.
Patent GB-662355-A (GB)
Title: Improvements in and relating to the welding of metallic tips to metallic bases
IPC: B23K11/00
Filed: 1949-03-01
Abstract: 662,355. Electric welding. JOHNSON, MATTHEY & CO., Ltd., and TUCKER, N. A. Feb. 23, 1950 [March 1, 1949], No. 5503/49. Classes 83 (ii) and 83 (iv). Making pen nibs.-In welding a metallic tip to a metallic base by passing through the elements, maintained in contact, a current to cause melting of metal and consequent relative movement of the elements together, the current is reduced after a predetermined time or amount of relative movement or when the temperature of fusion is attained, to a value to delay freezing of the molten metal, the reduced current being maintained during further relative movement of the elements together to complete a predetermined movement thereof, whereupon further relative movement is positively prevented and the current is simultaneously or subsequently cut off. A base 2 provided with a hole 3 therein, supports a trunnion 5 on which is pivotally mounted a lever 6, urged upwardly by a spring 15, and carrying a transverse arm 18, a recessed block 7 and a stop 9 on an extension arm 8 extending into the hole 3. The base 2 supports a screw stop 3a and a bracket 19 carrying two contact-arms 20, 21 and a screw stop 22. On a wall 4 is mounted a clamp 10 comprising a fixed part 11 and a movable part 12, the parts 11, 12 being held together by a screw 13. The clamp 10 and the block 7 are connected by wires 26, 27 to the secondary of a transformer 25 whose primary is supplied from a source 28 through a control switch 29 and a pair of contacts 30 normally closed by a bar 31 and shunted by a resistance 32. The bar 31 is actuated by a solenoid 33 connected across the supply 28 through the contacts 20, 21. In operation, a pen nib blank 14 is placed in the clamp 10 and the lever 6 is passed downwardly by hand pressure on arm 18 to lower the block 7 into which a tip 24 is placed and the pressure on the arm 18 is released to allow the block 7 to rise under spring 15 to allow tip 24 to engage nib blank 14. The switch 29 is then closed to supply welding current to cause the blank 14 metal to melt and allow upward movement of the block 7 until the stop 9 engages the contact 20 to effect contact with the resilient arm 21 and so close the circuit 34 which energizes the solenoid 33 to effect the opening of the contacts 30. The resistance 32 is thus inserted in the primary circuit to reduce the welding current. Further upward movement of the block 7 occurs until the contact 21 engages the screw stop 22 when no further movement is permitted. The switch 29 is openened to cut the welding current and simultaneously to energize the solenoid 33 to allow the bar 31 to close the contacts 30. The circuit 34 may be operated by a time-controlled mechanism and the welding current may be cut off after a predetermined relative movement of the parts has been completed. The tip supporting block may be held stationary and the nib blank may be movable. The method is applicable to the welding of electric contacts. Specification 647,750 is referred to in the Provisional Specification.
Patent GB-727527-A (GB)
Title: Improvements in or relating to antennae
IPC: H01Q21/20
Filed: 1953-02-27
Abstract: 727,527. Aerials. SIEMENS & HALSKE AKT.-GES. Feb. 27, 1953 [March 3, 1952], No. 5610/53. Class 40 (7). An antenna having a uniform radiation characteristic over a wide angle in predetermined plane consists of a plurality of like dipoles arranged in the plane around a support and each provided with a reflector, the ratio of the length to the diameter of the dipoles being chosen so as to provide the required uniform characteristic and the dipoles being less than the working wavelength long. In one embodiment, a square support 1 carries dipole pairs 2, 3; 4, 5; 6, 7; and 8, 9 on its four sides and the dipoles are backed by plane reflectors 10, 11, 12 and 13. The dipoles are supported from the reflectors and the reflectors supported and spaced from the mast by tubes 22, 23, 24 and 25 in which the feeders are located. Dipoles shorter than a full wavelength to match the feeders in impedance are used and a ratio of length to diameter between 10 and 25 and normally, between 15 and 20 is stated to be satisfactory to give the required pattern. With such values of the ratio the antenna is suitable for a frequency band of television width. In a further embodiment (Fig. 2, not shown), basic antennµ of the general form shown in Fig. 1, but with the length of the dipoles and plane of the reflectors not parallel to the sides of the support, are stacked one above the other and displaced angularly relative to each other in order to provide a pattern approaching more closely to the circular. A number of dipoles may be associated with the same feeder in this arrangement.
Patent GB-1115697-A (GB)
Title: An improved needle for a hay baler
IPC: A01F15/14
Filed: 1966-02-09
Abstract: 1,115,697. Baling machines. INTERNATIONAL HARVESTER CO. 9 Feb., 1966 [15 March, 1965], No. 5647/66. Heading B5F. A baler needle 10 of U-shaped cross-section is secured to a tie pipe 41 by means of a U- bolt 25 passing around the tie pipe and extending through holes in the needle 10 and a needle cap 20. The needle 10 is made of sheet metal and an aperture (16) therein (Figs. 2, 3, not shown), forms a seating for the tie pipe 41. The needle cap 20 has legs 22, 23 which bear on the side walls 12, 13 of the needle and prevent splaying thereof. The U-bolt 25 is welded to the tie pipe 41 and its free ends carry nuts 27.
Patent GB-817659-A (GB)
Title: Improvements in and relating to the metallizing of ceramic or cermet materials
IPC: C04B41/52
Filed: 1956-02-23
Abstract: A ceramic or cermet body is coated with a ternary alloy of substantially 1-10 per cent Ti, 1-30 per cent Sn, 60-98 per cent Cu. The coating will also serve to bond to the ceramic or cermet (e.g. almumina, steatite, zircon), a metal member (e.g. steel, Cu) of similar thermal expansion.  The coating material is applied to the ceramic surface as a thin layer of homogeneous alloy in solid or powder form or a mixture of the powdered metals, and fixed at 850 DEG -1150 DEG C. in a dry oxygen-free atmosphere.  If desired a Ni, Cu or Cd coat may then be applied and the thus coated ceramic be brazed by conventional methods (e.g. using Ag brazing powder) to a metal member.  Specification 810,774 is referred to.
Patent GB-860764-A (GB)
Title: Improvements in saw blades for stone sawing machines provided with hard metal cutters
Inventor: MATTSSON SVEN AXEL
IPC: B28D1/12
Filed: 1959-02-19
Abstract: 860,764. Stone saws. SKANDINAVISKA GRANIT A.B. Feb. 19, 1959, No. 5770/59. Class 124. Cutter plates having hard metal cutters are attached to stone saw blades by screws and have a thick and a thin portion, the junction between the portions being channelled to receive a complementary shaped portion of the saw blade. As shown, a saw blade 1 has carrier plates 3 having cutters 4, 5 attached to the saw blade by screws 2. The carrier plates have a thick portion and a thin portion the junction between the portions being undercut to receive a bevelled portion of the saw blade. The end of the thin portion may also be bevelled to engage an undercut portion of the saw blade.
Patent GB-1209957-A (GB)
Title: Vessel providing resistance to high pressures
Inventor: FROHLY LEON
IPC: E04H7/20
Filed: 1968-02-06
Abstract: 1,209,957. Reactor pressure vessels. COMMISSARIAT A L'ENERGIE ATOMIQUE and COMPAGNIE FRANCAISE D'ENTREPRISES METALLIQUES. 6 Feb., 1968 [10 Feb., 1967 (2); 20 June, 1967], No. 5827/68. Heading G6C. In a nuclear reactor pressure vessel, the side wall 1 is formed of steel sheets 10 separated by concrete. Prestressing bands 9, Fig. 1, surround the outer surface. Alternatively, Figs. 6 and 7, the bands 9 are applied against the longitudinal beams, 13, mounted round the wall 1. Similar beams, 25, on the dome 24, are interlocked at their extremities with 13 by the keys, 31. Elastic members positioned between the layers 10 may take the form of synthetic rubber or deformable steel tubes which also serve as cooling ducts. In a further modification, Fig. 10, longitudinal beams formed of metal strips 38a, 38b are applied to the metal lining 10a by the rings 40. The transverse prestressing bands 42, formed of annular metal sheets and steel wires are supported on the rings 40 by the tensioning blocks 44.
Patent GB-1032421-A (GB)
Title: Improvements in geared motor units
Inventor: RAND LEONARD ALEXANDER
IPC: H02K5/24
Filed: 1962-02-15
Abstract: 1,032,421. Resilient mountings. ACRAL Ltd. Feb. 11, 1963 [Feb. 15, 1962], No. 5835/62. Heading F2S. [Also in Division H2] A shaft-bearing 4 is resiliently mounted in a rubber ring 8 which is secured in an arcuate seating by a clamp consisting of two strips 9 engaging inwardly directed hooks 7 on the seating and tensioned by bolt 12. The hooks are somewhat below shaft level so that tightening serves to force the strips on to the hooks.
Patent GB-1384702-A (GB)
Title: Process for the production of a pharmaceutical compound
IPC: C07C227/16
Filed: 1971-03-02
Abstract: 1384702 L-Dopa T J SMITH & NEPHEW Ltd 2 March 1972 [2 March 1971] 5842/71 Heading C2C The production of L-dopa comprises admixing an aqueous solution of a diazonium salt of L-3-amino-tyrosine and an aqueous solution of copper sulphate, the concentration of diazonium salt in the mixture being not greater than 0À05M, and subsequently adding the mixture over a period of time to a stirred and heated solution of copper sulphate, having a concentration of at least 0À5M, the stirred solution of copper sulphate being maintained at a temperature of from 55‹ to 85‹ C. during the addition of the mixture.
Patent GB-1271218-A (GB)
Title: Cast methyl methacrylate polymers containing infrared absorber
Inventor: TUCKER ROBERT JEROME
IPC: C08K5/29
Filed: 1970-02-06
Abstract: 1,271,218. Polymethyl methacrylate containing infra-red absorber. AMERICAN CYANAMID CO. 6 Feb., 1970 [18 March, 1969], No. 5848/70. Heading C3P. Cast polymethyl methacrylate containing infra-red absorber is prepared by (a) providing a mixture of (i) methyl methacrylate prepolymer, (ii) a mixture of methyl methacrylate and polymethyl methacrylate or (iii) methyl methacrylate, with at least 0À01% by weight of an infra-red absorber of the formula wherein each R individually represents C 1 -C 6  alkyl, and n is 1 and X is a divalent anion or n is 2 and X is a monovalent anion, and at least an equal amount by weight of a stabilizer compound (for the infra-red absorber) of the formula wherein each X individually represents H, Cl or F, said mixture also containing a polymerization catalyst; (b) purging the mixture with an inert gas, (c) degassing the mixture in vacuo to remove dissolved gas, (d) pouring the mixture into a casting cell, and (e) heat-curing the mixture. If desired, the methyl methacrylate can be copolymerized with other monomers, e.g. ethyl, n-propyl, isopropyl or n-butyl methacrylate, ethylene glycol dimethacrylate or neopentyl glycol dimethacrylate; in such cases the comonomer is included in step (a). Azobisisobutyronitrile is preferred as polymerization catalyst. The casting mixtures can also include lubricants, U.V. absorbers (e.g. 2,2<SP>1</SP>-dihydroxy- 4-methoxybenzophenone), dyes, pigments, other infra-red absorbers, photo-chromic materials, stabilizers &c. The cast products are useful in applications such as sun visors, welding windows and glazing materials.
Patent GB-1213619-A (GB)
Title: Improvements in or relating to devices for increasing the power output of internal combustion engines
Inventor: KOTRC JOSEF
IPC: F02N19/00
Filed: 1969-02-04
Abstract: 1,213,619. Regulating; starting. LIBERECKE AUTOMOBILOVE ZAVODY NARODNI PODNIK Feb.4, 1969 [Feb.23, 1968], No.5908/69. Headings F1B and F1K. A device for increasing the power output of an internal-combustion engine and for facilitating cold starting comprises a branch of unpressurized fuel 15 and a branch of compressed air 33 controlled by an accelerator pedal 43. The two branches open into a mixing device 13 which is in communication with the induction pipe 4 of the engine. By pressing down the acceleration pedal 43 the air regulation valve 9 is controlled by the control rod 32 so that air is passed into the tubing 33 through the air cock 34 into the mixing device 13. For facilitating starting in winter there is arranged in the mixing device 13 a heating element 14 of incandescent type connected to an electric circuit from the additional tank 16 which may contain fuel of a lighter type the fuel flows through the cock 37 through the tubing 36 into the float chamber 12 and then through the tube 15 into the mixing device 13. The mixture is ignited by the element 14 and the flame thus produced is drawn from the induction pipe 4 into the cylinders of the engine.
Patent GB-745988-A (GB)
Title: Pin-connected tubular electric heater
IPC: F24C15/10
Filed: 1954-03-01
Abstract: 745,988. Electric hot-plates. KOCKUMS JERNVERKS AKTIEBOLAG. March 1, 1954 [March 4, 1953], No. 5936/54. Class 39(3). A hot-plate comprises a flattened spiral sheathed heater 26 resting on supports 24 provided in an underlying reflector plate 22, the outer end 28 of the spiral being bent down to extend tightly through the reflector 22 into a space between the reflector 22 and a lower protection plate 18, in the centre of which are contact pins 16 for mounting the hot-plate on a cooker 10. The sheathed element 26 is rotatable about the axis of its bent down end 28 which extends through a tubular bearing 30 in the aperture of the reflector so that the element may be rotated away from the reflector 22 to allow cleaning of the latter, and the terminals at the end 28 of the element are connected to the pins 16 by flexible conductors 34 in the space between the reflector 22 and the plate 18. The end 28 of the element may be bent down through a small angle, in which case the element may be rotated upwards, or the end 28 is bent down perpendicularly, in which case the element rotates in a horizontal plane away from the reflector and is readily removable.
Patent GB-567744-A (GB)
Title: Improvements in turning and boring irregular curved surfaces
IPC: B23Q35/08
Filed: 1941-05-07
Abstract: 567,744. Lathes ; making turbine blades. BAUMANN, K., SHAKER, H. J., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. May 7, 1941, No. 5945. [Classes 83 (ii) and 83 (iii)] Copying lathes for turning irregular curved surfaces either externally or internally, are described with reference to producing turbine blades. The blade is clamped at 19 to a cradle 17 trunnioned at 14 in a cradle 12 trunnioned at 10 in brackets carried by a slide 7. A bar 1 mounted between the centres, carries a cutter 3 and also two cams, one contacting with a spherical roller on an arm 12a carried by the cradle 12 and the other 6 engaging a like roller 17b. As the part 18a is traversed by movement of the slide 7 past the cutter, the rollers traverse across the cams so that the contours of the blade may be arranged to vary along its length. The movement of the cradle 12 controls the contour and that of the cradle 17 maintains the surface of the work at the correct cutting angle with respect to the tool. The cams may be arranged to travel axially in proportion to the movement of the slide, so that the same cams may be used for varying lengths of blade. In a modification, the work and cams are carried by the mandrel and the inner cradle carries the tool. In a further modification, one or a number of blades are clamped in an inner cradle 16, 17 trunnioned in an outer cradle 12, 13, trunnioned at 11 in a cage member 21 rotating round a fixed central spindle 4 carrying the cams 5, 6. The tool slide 2 is linked to traverse the bar 4 through the cage proportionally to the movement of the slide. The ratio may be adjustable. Specification 567,745 is referred to.
Patent GB-917551-A (GB)
Title: Cassette for an endless tape
IPC: B65H75/16
Filed: 1958-02-25
Abstract: 917,551. Cassettes for endless kiriematograph film. RESEARCH INTERESTS Ltd. (Fries, G.). Feb. 25, 1959 [Feb. 25, 1958], No. 6047/58. Class 97 (1). [Also in Groups XVI and XXXVIII] A cassette for an endless tape of kinematograph film for recording or reproducing pictures and/or sound comprises a plate freely rotatable on a pivot therein and having on one side a core around which the endless tape is disposed in an annular coil supported by the plate, the core comprising a circular array of spaced teeth, rotatable means mounted in the cassette adjacent the edges of the coil remote from the plate and adapted to support the coil in frictional engagement with the plate when the casette is disposed with the plate above the coil and at least one aperture in the cassette through which a loop of the endless tape extending from the inside to the outside turn of the coil is led out and back into the cassette. As shown, the tape coil 4 is supported on a plate 1 having a core 1a fixed to it and bearing outwardlydirected teeth 5 the outer surfaces of which are inclined to the spool axis and are in line with core surface where this meets the plate. The plate 1 is rotatably mounted on a fixed pivot 3 in a cassette 2 provided with guide rollers 10, 11, 12 and exit and entry apertures 8, 9. The cover 6 of the cassette is provided with two, three or, as shown, four rollers as 13, 14 which engage the edges of the film or tape remote from the plate 1 when the cassette is tilted or turned over, the plate 1 being axially movable on the pivot 3. The teeth may be formed of or covered with rubber or a like resilient material. Instead of solid teeth, loops of wire of similar profile or similarly inclined pegs or wire spokes may be employed while the plate 1 may be replaced by radial wires or other openwork construction providing adequate edge support for the film or tape. For light-sensitive films, the apertures 8, 9 may be provided with velvet or like light- and dust-traps. Preferably the two ends of a tape or film are joined to form the endless tape by an insertion which is coloured or otherwise readily identifiable so as to show when the tape has been completely wound once and the tape may be provided here or elsewhere with markings, notches or metal coatings or parts for stopping or other control of the machine operation.
Patent GB-654853-A (GB)
Title: Pumps
IPC: F04D1/00
Filed: 1948-02-27
Abstract: 654,853. Centrifugal pumps. NASH ENGINEERING CO. Feb. 27, 1948, No. 6061- Convention date, March 7, 1946. [Class 110(i)] Two annular gas collecting chambers communicate directly with the interior of the pump chamber near the two inlets of the impeller, which is of the double-suction type, the collected gases being led away through conduits. The pump is mounted on the bottom of an aircraft fuel tank by means of a flange 10, Fig. 1. Fuel passes through strainers 18 and 64 to the eyes 31 and 32 respectively of the impeller 12. Gas bubbles separate out near the entrance to each impeller passage and enter annular grooves 36 and 37. The gases pass by way of conduits 40, 41 and 42 and a conduit 45 to suction ports 43 and 46 respectively of a twolobe liquid-ring pump 44. The two lobes of the pump 44 discharge through respective ports 52 and 53 into a discharge chamber 54 and thence by way of a port 55 into the fuel tank. The outer edge 60 of each impeller blade 28 or 29 is at an angle of 45 degrees to 75 degrees, but preferably 55 degrees, to the plane of rotation; and the radially outer parts 63, Fig. 2, extend substantially concentric to the impeller axis. Specifications 648,546 and 654,871 are referred to.
Patent GB-1241156-A (GB)
Title: Apparatus for secretly recording the reading behaviour of a person
IPC: F21V33/00
Filed: 1970-02-09
Abstract: 1,241,156. Lamps. HERBERT WETTIG & CO. K.G. 9 Feb., 1970 [1 Aug., 1969], No. 6069/70. Heading F4R. [Also in Division H4] To enable the reaction of a reader to an advertisement &c. to be remotely observed or recorded in secret, the reader 14, Fig. 1, is seated at a mirror-topped table 13 on which the advertisement, together with others, is placed and the reflected reaction of his eyes, together with the read subject matter, is observed by an optical or television camera 23 hidden in a standard lamp 12. The camera records through a gauze or like grid 29 but is rendered invisible to the reader by the glare from surrounding light sources 27. The light sources may be upper and lower annular fluorescent tubes 30, 37 and the camera may be housed in a compartment 22 of the opaque shade 17 formed by upper and lower partitions 19 and 20. The peripheral part of the compartment 22<SP>1</SP> in the alternative embodiment shown in Fig. 6 may be formed by a cylinder separate from the translucent shade 17<SP>1</SP> and a third or middle fluorescent tube 35 placed in the annular space between the cylinder and shade. The lower tube at least may be replaced by a spray of light bulbs.