baber/WOPTO huggingface dataset:
Patent GB-1472551-A (GB)
Title: Heat transfer device employing fins in a fluid stream
IPC: H01J23/00
Filed: 1974-11-11
Abstract: 1472551 Heat exchanger fins VARIAN ASSOCIATES 11 Nov 1974 [12 Nov 1973] 48785/74 Heading F4S [Also in Division H1] Heat transfer fins 13 extend generally radially outwardly and longitudinally in arcuate array from a device 11 such as the anode assembly of an electron beam tube, klystron, or travelling wave tube, to be cooled by an air stream flowing over the fins, each fin being corrugated into a wave-like geometry in which the corrugations increase in amplitude as their distance from the longitudinal axis of the device 11 increases, and the air flow being confined to the fin assembly by a cylindrical baffle 17. The corrugations may be sinuous as shown in Fig. 1 or angular as shown in Fig. 3. The fins may be entirely radially directed (as shown) or they may be of involute shape. The arrangement is said to provide a vortex action of the cooling air near the outer surface of the device 11 as shown by the arrows in Fig. 1. The fins, which may be perforated, are preferably of copper of aluminium, each fin being brazed into a corresponding groove 14 in the surface of the device 11.
Patent GB-1286499-A (GB)
Title: Process for the production of heat resistant filter materials
Inventor: BARTHEL ROLF
IPC: D04H1/43
Filed: 1969-10-06
Abstract: 1286499 Woven and non-woven fabrics GLASSEIDEN-WERK OSCHATZ VEB 6 Oct 1969 48997/69 Headings D1K and D1R A woven or non-woven fabric, suitable for use as a heat resistant filter material, consists of polyacrylonitrile fibres and glass fibres twisted together so that the glass fibres are wholly covered by the polyacrylonitrile fibres; the heat resistance of the polyacrylonitrile fibres has been increased by heat treatment, e.g. at 250-400C.
Patent GB-1161856-A (GB)
Title: Apparatus for Checking Operation of Power-Producing Components.
IPC: F02B77/08
Filed: 1967-10-30
Abstract: 1,161,856. Track apparatus. CLEVELAND TECHNICAL CENTER Inc. 30 Oct., 1967 [7 Dec., 1966], No. 49124/67. Heading B7N. [Also in Division G1] The operation of power-producing components of locomotives is monitored by infrared sensors located to receive radiation from the power-producing components. The detectors, which may be thermistor flake bolometers or photo-conductors, may be mounted on signal gantries or between the rails of a railway track so as to receive radiation through infrared lenses from exhaust pipes of diesel engines or from electric traction motors. The detectors are connected in temperature-compensated bridge circuits which feed pen recorders at a remote location through amplifiers. Malfunctions appear as too large or too small or non- existent peaks on the records.
Patent GB-1488660-A (GB)
Title: Security members
IPC: G06K19/12
Filed: 1974-12-23
Abstract: 1488660 Security documents EMI Ltd 23 Dec 1974 [24 Oct 1973] 49549/73 Heading B6A A security document, which may be a banknote, bears material which exhibits a distinct change of a magnetic property when its temperature is changed through a specific temperature or range of temperature within the limits -10‹ to +80‹ C. The temperature or range may be the Curie point and be above ambient temperature (0‹ to 30‹ C.), e.g. in the region of 45‹ C. In this case the material may be MnAs, Ni-Fe alloys or Ni-Cu alloys, in the form of acicular powder, in a binder and solvent, applied at ambient temperature to a tape support. The powder is magnetically oriented before the solvent is driven off, thereby fixing the orientation. The tape is then laminated to the document substrate. The tape support may be dispensed with. Alternatively the Curie point of the material, e.g. Mn 2 Sn, FeS 2 , FeBe 5 , or Ni alloys incorporating Al, Cr, Si or V, is below ambient temperature, e.g. in the region of 0‹ C., the acicular powder being oriented below the Curie point if such orientation is required. In other forms, the material is deposited by vacuum evaporation on to a magnetically coded substrate thereby taking up the orientations of the coded substrate, or is deposited in dots or the like of printing ink, e.g. applied to a banknote. Upon heating above the Curie point the orientation becomes indistinguishable, magnetization is lost or remanence changes.
Patent GB-1443027-A (GB)
Title: Game of logical deduction and systematic thought for 2 or 4  players
IPC: A63F3/00
Filed: 1973-02-03
Abstract: 1443027 Board game E R KNIGHT 3 Feb 1976 49658/73 Heading A6H Game apparatus comprises a board as shown in the drawings and forty playing pieces. The pieces may be free-standing or inserted in holes in a metal, wood or plastics board.
Patent GB-1364902-A (GB)
Title: Degradable articles
IPC: C08K5/00
Filed: 1971-10-26
Abstract: 1364902 Degradable mulch films PRINCETON CHEMICAL RESEARCH Inc 26 Oct 1971 [27 Nov 1970] 49724/71 Heading C1B [Also in Divisions A5 and C3] Degradable mulch films are made of compositions comprising a polymer of at least 50 weight per cent of butene-1 units and sufficient stabilizer to provide a stability of 5000 to 70,000 Temperature Adjusted Langley Units. The compositions may also contain herbicides. The polymer may also contain units of ethylene, propylene, methyl-pentene, styrene, butadiene or isoprene; and the stabilizer may be a thio dialkanoic acid ester, organic phosphate or phosphite, phenol, phenyl salicylate, cinnamonitrile, hydroxybenzophenone, amine, nickel bis-alkylphenol sulphide, benzotriazole, benzylidene malonate, substituted acrylonitrile or chalcone. Examples describe mulch films of compositions comprising polybutene and (25) dilauryl thiodipropionate, tris - nonylphenyl phosphite and 2 - (3<1>,5<1> - di - t. - butyl - 21- hydroxyphenyl) - 5 - chlorobenzotriazole; (33) dilauryl thiodipropionate, tris - nonylphenyl phosphite and 2,2<1>-methylene bis-(4-methyl-6- t.-butylphenol); (34) di-t.-butyl p-cresol; (35) di-t.-butyl-p-cresol and 2,4-D amine; (36) di-t.- butyl p-cresol and dimethyl tetrachloroterephthalate; and (41) tris-nonylphenyl phosphite and 1,3,5 - trimethyl - 2,4,6 - tris - (3,5 - di - t.- butyl-4-hydroxybenzyl) benzene. Many other stabilizers are listed and exemplified.
Patent GB-1241319-A (GB)
Title: Linear accelerator
Inventor: STARK PETER GABRIEL
IPC: H05H9/00
Filed: 1968-10-23
Abstract: 1,241,319. Linear particle accelerators. VARIAN ASSOCIATES. 23 Oct., 1968 [24 Nov., 1967], No. 50277/68. Heading H1D. In a linear accelerator in which charged particles are accelerated nearly to the velocity of light in a resonant accelerator section 2 having a plurality of coupled cavity resonators 3, the first cavity 3<SP>1</SP> is so designed that the particle beam from the gun 5 is injected at a position of maximum electric field intensity in order to improve the bunching of the beam and to allow the use of lower injection voltages. The upstream wall 21 of the injection cavity 3<SP>1</SP> is placed at a position corresponding to the midplane of a standard cavity and is planar and provided with a beam entrance hole as small as possible in order to act as a reflecting plane. The beam entrance hole may have a diameter of 2 mm. and the beam exit hole of the cavity 3<SP>1</SP> a diameter of 10 mm. The cavities 3 are intercoupled by a plurality of off-axis cavities 15. The accelerator section 2 is excited from a microwave source 9 connected into the centre of the section through a waveguide 11. The beam current may be varied by varying the voltage between the beam source and the accelerating electrode which is also the wall 21.
Patent GB-1397240-A (GB)
Title: Data handling systems
IPC: G06K7/08
Filed: 1971-10-28
Abstract: 1397240 Card reader PLESSEY CO Ltd 2 Oct 1972 [28 Oct 1971] 50301/71 Heading G4M A probe for reading magnetically encoded data on a magnetic track has a tubular body 1 having a magnetic read head 2 at one end and containing a " start acceptance" logic circuit 3, a store 4, " data complete "logic circuitry 5, transmission acceptance circuitry 6 and a battery 1A or leads connected to a power source. Circuitry 6 controls an audio or visual indicator 7 and erases data in store 4 if errors in the data are detected.
Patent GB-1435692-A (GB)
Title: Seat
IPC: A47C31/02
Filed: 1972-03-30
Abstract: 1435692 Securing seat upholstery COX OF WATFORD Ltd 30 March 1973 [30 March 1972] 50445/75 Divided out of 1435691 Heading A4M The subject-matter is all included in Specification 1435691 from which the present case is divided, but the claims are directed to the use of an elongate locking strip 12 or 22 which is squeezed into a channel 15 extending around a seat frame to clamp a cover trim 9 and/or 16 in the mouth of the channel whereby the free edge of the cover trim is concealed from the outside, the channel, the trim and the locking strip remaining unattached to each other so that they are subsequently seperable to allow fitment of a different cover.
Patent GB-1040840-A (GB)
Title: Method of and machine for fitting scraper points to arcuate rasps
Filed: 1963-12-20
Abstract: 1,040,840. Making arcuate rasps. E. GASPAROTTO, [trading as F. L. L. I. GASPAROTTO DI EMILIO]. Dec. 20, 1963 [Jan. 12, 1963], No. 50542/63. Heading B3A. A method of fitting scraper pins l (Fig. 5, not shown) having heads m in the perforated cylinder g of an arcuate rasp, comprises mounting the cylinder between two flanges h and i, at least one of which is conical, rotating the cylinder a predetermined number of turns after it has been loaded with pins, to allow the pins to enter the perforations, and then retaining the pins in position by inserting in the cylinder a concentric inner ring of resilient strip material. The cylinder is mounted on a machine having motor-driven spindles b and c, the spindles being horizontal during rotation of the cylinder but being moved by a handle e to a vertical position for fitting the inner ring. The machine may have one, two, or four spindles.
Patent GB-1244991-A (GB)
Title: Improvements in or relating to methods of forming ceiling cover structures
Inventor: LJUNGBO SVEN OLOF BIRGER
IPC: E04B9/04
Filed: 1968-10-24
Abstract: 1,244,991. Reinforcing edges of non-metallic sheet material. S. O. B. LJUNGBO. 24 Oct., 1968 [27 Oct., 1967], No. 50608/68. Heading B5K. [Also in Division E1] A ceiling cover structure comprising an integral sheet of plastics or rubber material is, prior to being erected in position, treated with a swelling agent, and the sheeting lining swollen to an increase in size of at least 2% then erected, whereafter the swelling agent is allowed to evaporate totally so that the sheeting contracts and obtains a flat, stretched surface. The sheeting of, e.g., P.V.C., is formed from a number of smaller sheets welded together and is provided with circumferentially extending edge reinforcements, e.g. fabric/wire reinforced strips, to facilitate attachment to the side portions of the ceiling. The sheeting may be treated with a curing agent before, during, and/or after being treated with the swelling agent.
Patent GB-1356835-A (GB)
Title: Recovery of metal values from aqueous solutions
IPC: C23G1/36
Filed: 1971-11-03
Abstract: 1356835 Nickel recovery REDERI AB NORDSTJERNAN 3 Nov 1971 [3 Nov 1970] 51126/71 Heading C1A Ni(OH) 2  is recovered from an aq. acid soln. containing Fe, Cr, Ni, F and SO 4  ions by (a) adding Ca(OH) 2 , CaO or CaCO 3  to a pH of 2-5 thereby precipitating Fe(OH) 3 , Cr(OH) 3 , CaSO 4  and CaF, (b) separating the ppt. formed, (c) adding NaOH or KOH to a pH of 5-11 to ppt. Ni(OH) 2  and then (d) separating the Ni ppt. The acid soln. may be a waste pickle liquor. The Ni(OH) 2  may be dewatered using a soln. of a polyamine and a polyacrylamide.
Patent GB-1441790-A (GB)
Title: Suitcases
IPC: A45C13/36
Filed: 1973-11-06
Abstract: 1441790 Suitcases ANTLER Ltd 30 Sept 1974 [6 Nov 1973] 51427/73 Heading A4G A method of constructing a suitcase having a girdle 11, Fig. 2, reinforced by a stiffening band 40, e.g. of spring steel, comprises positioning on the girdle at the required location of the band a masking strip 28 of a width exceeding that of the band 40 and securing the strip along one longitudinal margin 30 only; stitching a wear or protective panel 32 along each of its transverse margins 34 to the external surface of the base or back wall of the girdle to overlap the ends of the strip 28; placing the band 40 in position behind the strip 28; and covering the band 40 with the strip 28 and securing the strip to the girdle 11 along its other longitudinal margin so as to encase and locate the stiffening band 40. In one embodiment the girdle has slits 24 through which the ends of the band 40 pass from outside to inside the suitcase thus by-passing the lines of stitching 36.  In a second embodiment the band 40, Fig. 5, and the masking strip 28' are located inside the suitcase and the masking strip has notches 46, or interruptions at the lines of stitching 36 to enable it to be raised for positioning of the band 40 prior to stitching the second longitudinal edge of the masking strip in place. "Stitching" is intended to include also welding and securing by adhesive. The girdle and masking strip may be of p.v.c. or polypropylene.
Patent GB-515407-A (GB)
Abstract: 515,407. Rotary compressors. WEBER, H. Feb. 28, 1938, No. 6205. Void. Convention date, Feb. 26, 1937. [Class 110 (ii)] A multi-stage compressor (which may be divided as two separate compressors), comprises low pressure and high pressure stages 12, 13, respectively. In the former an eccentric piston 9 co-operates with two abutments 22, and in the H.P. stage a piston 11 is gyrated by an eccentric 28 on the shaft 4, but is prevented from rotating by a member 31 screwed to the piston and pivoted in hollow sliding member 34. The rotor in the L.P. stage comprises two parts 9a, 10a, and a ring 16 of slightly larger diameter which cooperates with plates 21 in the abutments. The ring is supported on a bearing 14. Rods 19 and rings 20 secure the abutments to each other. The outlet ports are provided with non-return valves. Balancing masses 9a, 10a are arranged in the rotors. Intercooling between the stages, is arranged for. In the H.P. stage, two roller bearings 29 support the piston 11 on the eccentric 28. The slide 34 bears on a curved surface on the piston 11.
Patent GB-1102970-A (GB)
Title: Method of continuously providing a fastener on a thermoplastic film
IPC: B29C48/08
Filed: 1965-12-06
Abstract: 1,102,970. Bags with securing means. HIGH POLYMER CHEMICAL INDUSTRIES Ltd. 6 Dec., 1965 [5 March, 1965], No. 51694/65. Heading B8K. [Also in Division B5] A thermoplastic film bag has at its mouth at least one pair of male and female fastener members which can be opened and closed freely so as to seal the contents of the bag, said fasteners being made of thermoplastic resin. The thermoplastic resin used for making the film and that used for making the fastener members may be of different chemical composition, or of different physical properties, e.g. of different colour. Specified thermoplastic resins include polyethylene (high, medium and low pressure processes), polypropylene, polystyrene, polyvinyl chloride (hard and soft), polyvinylidene chloride, cellulose acetate, polyesters (e.g. polyethylene terephthalate), and polyamides, e.g. polyhexamethylene adipamide. Fig. 2 shows an extrusion nozzle 2 suitable for the process of the invention, having a slit opening 3 for the extrusion of the film, said slit communicating with the outlet of the passage through which the resin is supplied. 4<SP>1</SP> is the extrusion orifice for the male fastener member and 5<SP>1</SP> that for the female fastener member, both 4<SP>1</SP> and 51 being separated from slit 3 by a thin portion 6. 4<SP>1</SP> and 5<SP>1</SP> communicate with the source of supply of the fastener resin. After extrusion, the film and fastener member materials are united in contact with the upper surface of a roll, or in the neighbourhood thereof. The cooling as well as the fusing together of the film and fastener members being then completed there. Examples are given.
Patent GB-1211097-A (GB)
Title: Optical system for generating a homogeneous light spot of variable diameter
IPC: G02B13/00
Filed: 1967-11-15
Abstract: 1,211,097. Optical apparatus. MERESTECHNIKAI KOZPONTI KUTATO LABORATORIUM. Nov.15, 1967 [Nov.17, 1966], No.52044/67. Heading G2J.  An optical system for producing a homogeneous light spot of variable diameter, and constant  luminous flux, particularly for colorimeters, comprises a fixed condenser L1, a light source I at the focus of L1, and a movable lens unit L2 for varying the size of the illuminated area on a surface F, the distance L between condenser L1 and surface F being approximately four times the focal length of the lens unit L2. The terminal points of travel of lens unit L2 are spaced from condenser L1 by distances of at least the focal length and not more than three times the focal length, respectively of the lens unit L2. A fixed lens or mirror may be provided along the path of travel of the unit L2 and secured by releasable fixing means.
Patent GB-1536289-A (GB)
Title: Mine conveyors
IPC: B65G23/06
Filed: 1975-12-22
Abstract: 1536289 Drives for mine-conveyers UNDERGROUND MINING MACHINERY Ltd 21 Dec 1976 [22 Dec 1975 4 May 1976] 52379/75 and 18251/76 Heading B8A Bearings 2, 2, for the drive shafts 1, 1, of sprockets 6, 6 of a mine conveyer, are carried by a housing 10 which is fixed to the drive frame 7 of the conveyer. The drive to the shafts 1 is transmitted from an offset-located motor by a gear train 8, and a gear train 16, 17, within the housing 10. In another embodiment (Fig. 4, not shown) there is a single sprocket drive, a central scraper chain and the housing 10 is divided into two parts. Plates of the frame 7 are detachable to provide access to the bearings.
Patent GB-1136263-A (GB)
Title: Improvements in or relating to packaging machines
IPC: B65B11/52
Filed: 1965-12-10
Abstract: 1,136,263. Sheet forming. BRITISH UNITED SHOE MACHINERY CO. Ltd. 10 Dec., 1965 [19 Dec., 1964], No. 52454/65. Heading B5A. [Also in Division B8] In a machine (see Division B8) for packaging a product in a transparent film 7, mounted on a card 5, an intermittently rotating table transfers the card to a heating unit to soften the film. The card is then advanced to a film forming apparatus 50 which comprises a frame 51 having movable upper and lower platens 52, 53 carrying male and female mould members 54, 55 respectively. Piston arms 56, 61 urge the platens 52, 53 towards each other guided by posts 58, 62 respectively. Recesses are formed in the film and a vacuum applied through the female mould member 55 assists in retaining the shape of the film on removing the mould member 54.
Patent GB-1104477-A (GB)
Title: Machine for simultaneously harvesting two or more rows of beets or like root crops
IPC: A01D33/10
Filed: 1966-11-23
Abstract: 1,104,477. Beet-harvesters. E. J. E. HEYENS. 23 Nov., 1966 [25 Nov., 1965], No. 52512/66. Heading A1F. A two-row beet-harvester employs two beet-lifting units 3 feeding to a common rotary sieve 4 having its axis in a vertical plane passing between the two units, the sieve delivering to the interior of an endless bucket-elevator 5 running in a direction transverse to the line of travel and the bucket-elevator delivering to a receptacle 6 which it passes around, the receptacle 6 having an endless floor 8 and an endless side-wall 14 to assist final-delivery therefrom. The machine is self-propelled and includes topping mechanism 2 operating on the adjacent rows and delivering tops via a conveyer 9 to a lateral conveyer 10 passing through the bucket-elevator and discharging the tops on to the ground previously cleared. The machine has three rear wheels 12, 13 and a pair of steerable front wheels 11.
Patent GB-1194098-A (GB)
Title: Brake Apparatus
Inventor: BURNHAM PETER B
IPC: B60T13/16
Filed: 1968-11-13
Abstract: 1,194,098. Fluid pressure control of brakes. ABEX CORP. 13 Nov., 1968 [14 Nov., 1967], No. 52590/69. Divided out of 1,194,097. Heading F2F. [Also in Divisions G1 and G3] The description is identical with the parent Specification, but the claims are directed to measuring and controlling the braking torque.
Patent GB-1480533-A (GB)
Title: Apparatus for measuring curved surfaces
IPC: G01B5/213
Filed: 1974-12-05
Abstract: 1480533 Measuring curved surfaces SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 5 Dec 1974 [6 Dec 1973] 52695/74 Heading G1M A roller 6, Fig. 2 is mounted in a vice head 5 and has its spherical end suface traversed and gauged by a feeler 3 mounted on a graduated arm 2 slidably adjustable to vary its radius length R from a turntable 18. The head is mounted on springs 8, Fig. 1 and may be longitudinally and laterally adjusted by means of a micrometer screw 7, a screw 9 and a slide 4, whilst the arm 11 mounting the slide 4 and head 5 is itself pivotably adjustable about an axis 12 at right angles to the axis of the turntable 18 by means of a micrometer 14, Fig. 2 so that a different traverse can be taken across the roller end-face. Deviations of the curve and movements of the feeler 3 are indicated on a measured value amplifier 15 and recorded on apparatus 16, and a depression 17 in the end-face of the roller may be ignored by the recorder by arranging for a wheel 20 driven frictionally by the turntable and operating a potentiometer controlling the recorder to enter a notch 19 Figs. 4, 5. Whilst it is in the notch the wheel 20 slips its drive so that the indentation 17 is not recorded. Vertical adjustment of the wheel 20 provides adaptation to the appropriate diameter of the depression 17. In Fig. 6 (not shown) the roller 6 is thrust against a three point support (23) by a spring (24). An ejector 10 is provided for removing tested rollers.
Patent GB-1109220-A (GB)
Title: Displacement sensing transducer
Inventor: WALTON WILLIAM BYRON
IPC: G01D5/14
Filed: 1966-11-28
Abstract: 1,109,220. Measuring displacement electrically. CLARK EQUIPMENT CO. Nov. 28, 1966 [Dec.17, 1965], No. 53114/66. Heading G1N. Displacement of a sensor 10, Fig. 4a, in a direction parallel to a fixed body 60 is measured by mounting on the body 60 a transversely magnetized, curved, elongate strip 52, and detecting the change in magnetic field gradient in the said direction at the surface 30 of the sensor 10, by means of a pair of Hall plates. The sensor 10 includes: an excitation circuit (44), Fig. 2 (not shown) for the Hall plates and a measuring circuit (42); a first pair of magnetically permeable core members (16, 17), defining a gap (35) in which the first Hall plate (36L) is situated, and presenting a pair of polefaces adjacent opposite edges (N, S) of the fixed magnetic strip (52); and a second pair of core members (18, 20) Fig.3 (not shown), similarly embracing the second Hall plate and presenting a second pair of polefaces spaced from the first pair in the direction of movement. The difference in magnetic field strengths detected by the Hall plates depends upon the difference in the distances between the respective pairs of polefaces and the nearest corresponding parts of the magnetic strip 52, and this depends in turn upon the relative longitudinal position of the sensor and the strip by virtue of the curvature of the strip, which may be hyperbolic or parabolic. The strip 52 has a ferromagnetic backing plate 56, a rubber coating (53), and bolts 66, 67 which adjust the curvature. The Hall plates are energized from a stable D.C. source including Zener diodes (77, 78) Fig. 5 (not shown) and temperature compensating resistors (86, 87), and their outputs are compared in an amplifier (42) having feedback (125). A potentiometer (96) adjusts the balance of the Hall plate outputs, and potentiometer (130) adjusts gain. The Hall plate outputs are equal when the sensor is opposite the middle of the strip 52, thus defining a reference position, and the zero may be more clearly defined by providing a magnetic masking or shunting plate (150), Figs. 7, 8, 9 (not shown) on the strip. The transducer may be used in a servo balance circuit.