baber/WOPTO huggingface dataset:
Patent GB-1272073-A (GB)
Title: An electric shutter control circuit for a photographic camera
Inventor: MITA KUNIO
IPC: G03B7/083
Filed: 1969-07-30
Abstract: 1,272,073. Camera exposure control. ASAHI KOGAKU KOGYO K. K. July 30, 1969 [July 30, 1968], No.38292/69. Heading G2A. To measure the light available prior to effecting an actual exposure, switches SW 1  and SW 3  are closed to connect an ammeter M (or a signal lamp, not shown) to a photo-conductor R 1  and a switch SW 2  is opened to prevent energization of a shutter controlling electromagnet Mg, thus saving battery power. To effect an exposure, a shutter release member (not shown) is actuated and this closes SW 1 . Upon shutter opening, a switch SW 4  is opened, a capacitor C charges up and, via a switching circuit A, de-energizes electromagnet Mg to effect shutter closing. A switch SW 6  may be connected to the shutter release member to by-pass switch SW 2  and allow an exposure to be effected during light measurement. A battery check switch SW 5  is also provided.
Patent GB-1352906-A (GB)
Title: Planetary friction speed variator
IPC: F16H15/52
Filed: 1971-08-16
Abstract: 1352906 Variable speed epicyclic friction gear I V SIGOV J P KULAGIN V A KHRENOV V M SHEVERDIN and V V GRINENKO 16 Aug 1971 [23 Nov 1970] 38308/71 Heading F2D A steplessly variable epicyclic friction gear comprises planet wheels 1 freely mounted on pins 6 of a carrier 7 and having oppositely directed conical surfaces 4, 5. The wheels are driven by a shaft 9 through a bevel gear 8 engaging the surface 5 under constant spring pressure 13. An output shaft 11 is driven by a friction disc 10 also engaging the surface 5. The speed ratio is varied by movement of the point of engagement of a reaction annulus 12 moved by a worm screw gear 14. The shanks 2 of the planets are supported on a cone shaped support 3 and with constant spring pressure 13 applied the horizontal component of the reaction causes a variation of the force pressing the wheels 1 against the disc 10 so that an increase in speed ratio produces an increased contact pressure due to movement of the annulus 10. Alternatively the disc 10 may be held and the output derived from the annulus 12.
Patent GB-1213568-A (GB)
Title: Method and measuring for mounting an article on a foundation
IPC: F16M7/00
Filed: 1968-08-12
Abstract: 1,213,568. Machine supports. HOWALDTSWERKE - DEUTSCHE WERFT A.G. HAMBURG UND KIEL. 12 Aug., 1968 [24 Aug., 1967], No. 38441/68. Heading F2X. [Also in Division F4] The mating surfaces of a supporting part and a supported part (e.g. a foundation supporting a machine or a bearing pad supporting a tank) having manufacturing irregularities causing gaps between the surfaces, have the gaps filled with liquid plastics material (e.g. an epoxy resin reinforced with quartz powder) which then sets. In the embodiment shown a fabricated tank 11 is supported by a block 9, which has a machine sliding interface with another block 2 supported by the structure 1. Each block 2, 9 has a passage 6 through which liquid plastics is introduced to gaps 13, 14 ensured by raised corners 3 on each block. The position of the block 2 is adjusted by wedges 5 prior to the introduction of the liquid plastics. To assist in the distribution of liquid plastics the block 9 is provided with shallow grooves 10 facing the gap 13.
Patent GB-971456-A (GB)
Title: A mechanized automatic frame filter press
IPC: B01D25/127
Filed: 1960-11-09
Abstract: 971,456. Filter presses. J. I. PRZHILENSKY. Nov. 9, 1960, No. 38450/60. Heading BID. The press has fixed end plates 3, Fig. 1, and frames 1 and plates 2, Fig. 6, all suspended from beams 5, Figs. 1 and 4, the distances between frames 1 and plates 2 not being varied during operation. The frames 1, to the interior of which suspension is fed at 17, Figs. 4 and 6, from a header 18, have an inflatable sealing hose 19, Fig. 6, on each side, to which compressed air or water may be fed at 22, Figs. 4 and 6, from a pipeline 21, when it is required to close the filter chambers prior to filtration. During filtration, filtrate is withdrawn at 12 to a header 13 from the interior of plates 2. Then compressed air, washing water, more compressed air and hot air to dry the cake may be introduced to the chambers. Next, the pressure inside hoses 19 is relieved. Each plate 2 is covered by a single filter cloth 15 arranged U-fashion and extending from a cross-piece 28, around a tensioning tube 26, to another cross-piece, Fig. 6. The cross-pieces 28, and lower members 27a to which tubes 26 are secured by springs 29, form part of a cradle 27 which, in the next phase, is lowered by admission of air or liquid to two cylinders 32, Fig. 1, whereupon the descending filter cloths are cleaned against knives 25, Fig. 6, mounted under the frames 1. The cradle and cloths are returned to their initial positions for the next cycle. The frames are filled with perforated packing 24, Figs. 4 and 6. A truck 9, Fig. 1, serves to lift and lower the frames and plates during assembly and repairs. The filtration cycles are controlled by an automatic device. In Fig. 11 the rectangular frame is replaced by a circular hoop 39 containing a hose 40 having an annular boss 42 on one or both sides, the boss being penetrated at intervals by radial nipples 44 for introduction of suspension, air and water to the filtrate chambers. In Figs. 12 to 14 (not shown), the hoops 39 are dispensed with and a boss 42 is provided on both sides of the hose
Patent GB-1493656-A (GB)
Title: Edible collagen casing
IPC: A22C13/00
Filed: 1975-09-19
Abstract: 1493656 Tanning collagen casings TEE-PAK Inc 19 Sept 1975 [15 Oct 1974] 38478/75 Heading B5B An extruded coagulated collagen casing is first passed through a tanning path containing 0À3-1À25%. Aluminium tanning agent (as Al 2 (SO 4 ) 3  14 H 2 O) for 2-15 mins., then through a second bath containing 80-300 p.p.m. glutaraldehyde of pH 4À1-4À5 for sufficient time to effect substantially complete dynamic equilibrium between the casing and the bath and finally through a bath at pH 7À8-8À2 to precipitate the aluminium. Conventional aluminium tanning agents are used.
Patent GB-1143112-A (GB)
Title: Improvements in apparatus for dynamic weighing of loads
Inventor: CHILTON JOHN MOORHOUSE
IPC: B07C5/32
Filed: 1966-08-27
Abstract: 1,143,112. Weighing apparatus, electrical. W. & T. AVERY Ltd. Aug.24, 1967 [Aug. 27, 1966], No.38517/66. Heading G1N. In an apparatus for check weighing and sorting articles by weight, load cells (e. g. resistance strain gauges), are connected in a circuit to produce an analogue load signal including an actual load component and a time varying error signal due to extraneous vibration. To extract the true value of the load as quickly as possible, an impulse representing a function y = f(t) which is positive throughout the weigh-period T and symmetrical about a maximum value T/2, is applied as the input to a bridge circuit formed by the load cells and the bridge output is integrated over period T, to give an indication of the true weight. In Fig. 2 resistance strain gauges 20 to 23 are bonded to cantilever support member of a weigh platform 27 and are connected to form bridge 12. Arrival of a load on the platform is sensed by photo-cell 32 which triggers a monostable multivibrator 33 which generates a single squarewave pulse A which is integrated at 35, shaped at 37 to give pulse C representing the function y = f(t). The amplified pulse C is applied across the bridge 12 and to a switch 14b. Switches 14a, 14b are closed by a relay 40 for duration of the rectangular pulse A, so that the outputs of amplifiers 13, 38 are fed to respective integrating amplifiers 44, 45 which provide a time integral of the bridge output and of pulse C respectively. To sort the packages into three groups - light, correct and overweight, the output from integrator 44 representing actual weight is fed to bi-stable trigger circuits 50, 51. The other input to each trigger is derived from potentiometers 52, 53 supplied with a reference voltage from integrator 45. If the load is underweight circuit 50 is triggered and circuit 51 is triggered for overweight. Neither circuit is triggered if the load is of correct weight.
Patent GB-1031069-A (GB)
Title: Integrally molded container
IPC: D21J7/00
Filed: 1963-10-01
Abstract: 1,031,069. Moulded containers. KEYES FIBRE CO. Oct. 1, 1963 [June 5, 1962], No. 38553/63. Heading B8P. [Also in Division B5] Adjacent cells of a container integrally moulded of pulp material for eggs, light bulbs &c., are separated by upwardly converging cell walls 7 and 9, Fig. 1, which are joined together in the upper regions of at least one end of each pair of walls by an integrally moulded gusset means 41 (Fig. 3, not shown) which is of a vertical thickness greater than the thickness of the container walls to allow stacked containers to be easily separable. In the first embodiment, the container has a plurality of spaced posts 11, 13, 15, 17, the full posts 15 and 17 being of a reduced height to facilitate article removal, posts 17 also being designed to permit transverse division of the container along score line 18. The cell walls 7 have tabular extensions 19 which prevent articles in adjacent cells from contacting each other, and the walls 7 and 9 are formed with an unbridged central portion. When in stacked relation the unbridged portion of the wall members 7 and 9 permits entry of a tabular extension 19 of the container below (Fig. 4, not shown). In an alternative embodiment, no unbridged portion exists between the convergingwalls. The spaced posts need not necessarily be employed. The moulded container is formed by depositing pulp fibre from an aqueous slurry over screening 27 (Fig. 10) of a die 21 under suction, and the unbridged central portion of the walls 7 and 9 is formed by blanking off screening 27 with a solid member 29. The gusset means 41 may be formed due to the natural agglomeration in interfelted fashion across a relatively narrow gap.
Patent GB-1431109-A (GB)
Title: Surface acoustic wave devices
IPC: H03H9/64
Filed: 1973-08-16
Abstract: 1431109 Surface wave devices STANDARD TELEPHONES & CABLES Ltd 16 Aug 1973 38718/73 Heading H3U A surface wave acoustic device, e.g. a filter, Fig. 1, has a piezoelectric body with input and output bidirectional interdigitated electrodes 2, 3, the wave paths between which are defined by symmetrically disposed multistrip couplers 4a, 4b, 5a, 5b, the output sections of these couplers being perpendicular to their input sections. In a second embodiment, a balanced mixer device has input transducers 20a, 20b whose outputs are directed by right-angled couplers 21a-21d towards two pairs of intermediate transducers 22a, 22b and 22c, 22d. Each pair of intermediate transducers is bracketed by a pair of straight, 3dB loss, multistrip couplers, e.g. 23a, 23b, so that there is a 90 degrees phase shift between the inputs at 22a and 22b. Low frequency signals are also applied to transducers 22a-22d and are modulated with the abovementioned acoustic-wave inputs to produce secondary acoustic waves. Coupler 23a brings secondary waves from 22a, 22b into phase and feed them via a further right-angled coupler 24a to output transducer 25a. Similarly-operating couplers 24b-24d are also provided so that signals arriving at output transducers 25a, 25b are in phase and can be combined. The transducers 20a, 20b, 25a, 25b may have bandpass characteristics. Reference has been directed by the Comptroller to Specification 1,372,235.
Patent GB-1318277-A (GB)
Title: Balloon type catheters
IPC: B29C48/10
Filed: 1970-07-23
Abstract: 1318277 Medico-surgical tubes D S SHERIDAN 11 Aug 1970 [23 Sept 1969] 38720/70 Heading A5R A medico-surgical tube, such as an endotracheal tube or catheter, is produced by forming a first opening in the wall of a tube 4 of flexible water-proof plastics material having a major lumen and a secondary lumen in the tube wall, the first opening being in communication with the secondary lumen, closing the secondary lumen at the distal tip 6 of the tube, sealing an inflatable balloon cuff 12 to the outside of the tube 4 to envelope the first opening, forming a second opening through the tube wall in communication with the secondary lumen and further from the end 6 than said first opening, inserting a heated tapered mandrel into the second opening to expand the second opening and part of the secondary lumen, removing the mandrel and inserting one end of a tube 24 into the second opening, tube 24 having a slightly larger outside diameter than the unexpanded diameter of the secondary lumen, and allowing the second opening to contract about tube 24. The distal end of the secondary lumen may be closed and the distal end 6 rounded off by inserting the tip 6 into a heated mould in the manner disclosed in Specification 1318278. The mould may also be used to form an oblique distal end 6 from a square-cut tube. The cuff 12 may be sealed onto the tube 4 by inserting liquid cement between cuff shoulders 44 and 46 and tube 4, finishing beads 54 of the cement also being applied. The end of tube 24 remote from tube 4 may have a closure device 26 comprising a nipple 30, cylinder 28 and plug 32. The above method may be used to produce a tube with two spaced balloon cuffs each in communication with a respective secondary lumen. The balloon may be made by dipping a mandrel in polyvinyl chloride plastisol to form a balloon with opposed shoulders 44, 46 having openings about 0.5 mm smaller in diameter than the outside of tube 4. The tube 4 may be formed of plasticised polyvinyl chloride made translucent by the addition of white pigment. An X-ray-opaque distal tip, or an X-ray-opaque line may be provided, or the tube 4 may be rendered X-ray opaque by pigments in the plastics material. The tube 4 may have a tapered section, distance markers, and a closed distal end with side openings to the major lumen.
Patent GB-1115616-A (GB)
Title: Method and apparatus for producing accurately balanced-torque stretch yarns
IPC: D02J1/22
Filed: 1965-09-10
Abstract: To produce an accurately balanced-torque stretch yarn two undrawn thermoplastic yarns are in a continuous process uniformly drawn, uniformly but oppositely false twisted, heat set while twisted, and combined together - for example for means of a plying twist.  The yarns are false-twisted by peripheral contact with two sets of rotating interleaved discs, the shafts of one set of discs being rotated in the opposite direction to the direction of rotation of other set but by the same belt drive.  The yarns may be made from a polyamide, polypropylene, polyurethane, vinyl acetate, vinyl chloride, acrylonitrile, or polyester.
Patent GB-1521704-A (GB)
Title: Contactless ignition apparatus
IPC: F02P5/155
Filed: 1975-09-22
Abstract: 1521704 Ignition systems; timing ignition HITACHI Ltd 22 Sept 1975 [24 Sept 1974]  38840/75 Heading F1B Ignition apparatus for internal combustion engines comprises an ignition timing signal generator (pick-up coil 1) for generating an A.C. signal at predetermined time intervals, first switching means 8 energized in response to an output signal from the ignition timing signal generator, an ignition coil 17, a power transistor 16 for controlling primary current in the ignition coil 17 and second switching means 14 for controlling base current of the power transistor 16 the second switching means 14 being energized in response to an output of the first switching means 8 and the power transistor 16 controlling the current in the primary winding 17a of the ignition coil 17 and thus generating a high voltage in the secondary winding of the coil. The apparatus further comprises auxiliary ignition timing control means 20 responsive to engine operating conditions and the first switching means 8 for producing a retarded ignition angle signal, means 11 functioning as an OR-gate, means for applying an output of the first switching means 8 to the OR-gate and means for applying an output of the auxiliary ignition timing control means 20 to the OR-gate, the second switching means 14 being controlled by an output of the OR-gate. As shown a switch 26 is turned on as high water temperature is detected. The output signal E of the waveform shaping circuit 10 is combined with the output signal D of the auxiliary ignition timing control means 20 at starting when the temperature of the cooling water is low the switch 26 is off and no output is produced from the auxiliary ignition timing control means.
Patent GB-815938-A (GB)
Title: Moulds and cores for casting of metals
Inventor: EMBLEM HAROLD GARTON
IPC: B22C1/16
Filed: 1956-12-20
Abstract: 815,938. Mould and core materials. ROLLSROYCE Ltd. Dec. 20, 1957 [Dec. 20, 1956], No. 38925/56. Class 83 (1). Moulds and cores are made of powdered refractory such as zircon, silica sand and fireclay grog mixed with sodium-silicate solution and anhydrous calcium mono-acid-phosphate, and hardened by CO 2 , Organic substances such as starch, sugar, dextrin may also be added. The phosphate eliminates the fritting-action, which occurs at high temperatures and makes core or mould material difficult to remove from the casting. The amount of phosphate depends upon the amount of sodium silicate present, and may vary from an equal quantity by weight of the sodium silicate, calculated as a dry-weight, down to one eighth thereof. The term sodiumsilicate includes sodium-metasilicate and its hydrates.
Patent GB-346463-A (GB)
Title: Improved process for the production of cyanamides of alkaline earth metals
IPC: C01C3/18
Filed: 1929-12-24
Abstract: Calcium and like cyanamides are obtained by the action of ammonia or alkaline-earth carbonates or oxides admixed with carbon at temperatures up to 950 DEG  C.  Natural alkaline-earth carbonates may be used as calcium carbonate precipitated in the reaction of ammonia and carbon dioxide on calcium sulphate.  The carbon may be in the form of wood charcoal, peat charcoal, anthracite, coke, or the like. Instead of carbon liquid or solid hydrocarbons may be added to the alkaline-earth carbonate or oxide, or gaseous hydrocarbons may be added to the ammonia gas stream. Specification 279,811, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to. Reference has been directed by the Comptroller to Specifications 277,714 and 338,023, [both in Class 1 (ii), Inorganic compounds, other than &c.].
Patent GB-1090353-A (GB)
Title: Improved rotary valve for engines
IPC: F01L7/02
Filed: 1966-09-05
Abstract: 1,090,353. Valves, hydraulic reciprocating motors and pumps. T. E. MEALIN and D. GREAVES. Sept. 5, 1966 [Sept.14, 1965], No. 39632/66. Headings F1A, F1B and F1M. [Also in Division F2] A rotary valve for an I. C. air or hydraulic engine comprises a hollow cylinder 1, Fig. 1, having axially spaced annular recesses 21, 22 each connected to a pocket 26, the pockets being angularly offset from each other around the periphery and sealing-ring grooves 24, 25 being arranged on each side of each recess. Further sealing-ring grooves 27, 28 are arranged between pockets 26. Spring-loaded sealing-pads (17), Fig. 3 (not shown) are arranged in the inner surface of housing (2) on each side of ports (12). Lubricant is supplied via passages (30). The valve is cooled by a coolant flow through bore 8 assisted by an axially extending cooling vane (9), Fig. 2 (not shown). In an I. C. engine application the valve 1 is driven by chain 7 from the crank-shaft. Fuel mixture is admitted via port 18 and recess 21 to pocket 26 and thence passes via ports 12, 13 to cylinder 16. Vanes 23 or roughened wall surfaces given enhanced turbulence to the fuel mixture. The vanes may also be used to effect a degree of supercharging. Exhaust gas passes through port 12, pocket 26, recess 22 and port 19 to atmosphere. In another embodiment the pockets 26 lie in the same axial plane.
Patent GB-1476756-A (GB)
Title: Mining machine
IPC: E21C27/02
Filed: 1975-12-10
Abstract: 1476756 Mining machines DRESSER EUROPE SA 10 Dec 1975 [11 Sept 1974] 39708/74 Heading E1F A mining machine comprises a cutter 6 mounted on an arm 5' which is rectilinearly displaceable between first and second cutting positions spaced apart transversely of the longitudinal axis of the machine. A hydraulic ram is connected to the machine body 1 and the arm by ball joints and effects pivotal movement of the arm about a horizontal axis 12. The cutter may be a scourer, planar, grinder or fluid jet and the machine body may be provided with a cutter carrying arm at each end. In one embodiment (Fig. 7, not shown), the arm is displaceable by a double acting, hydraulically operated piston and cylinder assembly, the piston being secured to the pivot shaft 12. In other embodiments (Figs. 8 to 11 not shown), the arm is displaceable by one or two hydraulic rams positioned either on the top or the side of the machine body, the or each ram being provided with ball joints to permit the arm to be adjusted so as to vary the cutting height. In another embodiment (Figs. 12 and 13, not shown), the arm is displaceable by thrust screws and drive nuts, the latter being in engagement with an annular groove in a bush fixed to the pivot shaft.
Patent GB-348049-A (GB)
Title: Improvements in or relating to building structures
IPC: E04B1/32
Filed: 1929-12-31
Abstract: 348,049. Building structures such as poultry houses ; preventing radiation of heat from buildings. WHITE, A. E., 5, Quality Court, 'Chancery Lane, London.- (James Manufacturing Co. ; Fort Atkinson, Wisconsin, U.S.A.) Dec. 31, 1929, No. 39900. [Classes 20 (i), 20 (ii), and 20 (iv).] Poultry houses and the like comprise inner and outer arched walls between which loosely compacted filling material is placed, means being provided to prevent settling or shifting of the filling. The walls consist of arch ribs with inner and outer strips 16 .. 19, the inner strips 16, 17 being spread by wedge blocks 20, 21 at the base of the arch. Spacing members 25 of gradually increasing thickness as the arch rises are provided between the members 17, 18, and the arches are supported on sills 12 on a concrete foundation by means of angular metal plates 14. The outside of the structure is formed of match boarding 30 covered with tarred paper &c., and a metal lining is provided comprising plates 40 with angular parts 42 which form grooves into which the filling material enters, so preventing movement. The end walls are of ordinary construction. Windows in the roof are set in box-like frames sufficiently wide to be clamped to the inner and outer walls.
Patent GB-1386910-A (GB)
Title: Weapon
IPC: F41A21/12
Filed: 1973-08-23
Abstract: 1386910 Weapon DIEHL 23 Aug 1973 [19 Sept 1972] 39909/73 Heading F3C A weapon has a barrel which is pivotally mounted and has a tiltable firing chamber which is positioned so that its tilt axis coincides with the pivotal axis of the barrel, the firing chamber being tiltable to facilitate loading with ammunition and being tiltable independently of the elevation angle of the barrel and always into the same loading position. In an embodiment a barrel 6, Fig. 1, of a gun is fastened in a casing 7 slidably mounted in a cradle 3 which, having trunnions 4, 5, Fig. 4, is pivotally-supported by a superstructure 2, Fig. 1, of an armoured vehicle 1. The casing 7 is coupled, via recuperator mechanism 8 and a recoil mechanism 9, to the cradle 3. A firing chamber 11 is mounted so as to be tiltable about the axis of the trunnions 4, 5 which axis has no vertical displacement. A feeder 12 is provided for rounds 13. Round 14 is shown in the loading position and additional rounds 15 are stored in the superstructure 2. Tubular sealing rings 21, 22, Figs. 3 and 4, are attached to the firing chamber 11. In another embodiment the weapon is used as a mortar as shown in Fig. 8, a base piece 17 being provided and the mortar being pivotably mounted about a shaft 27 in a turntable 29. The latter has an arm 36 which is pivotally connected to a housing 37 of a barrel support 39. The support 39 is connected at 38 to the casing 7 and, having a rack (not shown), is axially movable by a gear 41 which is rotated by a hand wheel 40. Loading is effected via the firing chamber 11, a toggle 42 being provided to facilitate tilting and for the actuation of locking members 43, 44 for the placing of pressure on sealing rings 21, 22 by bolts 23, 24. (For Figures see next page.)