baber/WOPTO huggingface dataset:
Patent GB-1370164-A (GB)
Title: Piezoelectric transducer
IPC: H03H7/01
Filed: 1972-01-30
Abstract: 1370164 Piezo-electric transducers; transistor oscillator circuits MULLARD Ltd 30 Jan 1973 [10 March 1972] 11311/72 Headings H4J and H3T [Also in Divisions H1 and G4] A piezo-electric tranducer comprises a board 4 of insulating material, e.g. fibre glass and having conducting layers 5a, 5b e.g. of copper, to which is attached a transducer element 1 having electrodes 2, 3 so as to produce a device which resonates at one or more particular frequencies. The piezo-electric material 1 may be a lead zirconate titanate ceramic and the electrode 2 (Fig. 1) or 2 and 3 (Fig. 2) may be soldered to the conducting layers 5a or 5a and 5b or may be glued thereto using an epoxy resin or cyanoacrylate and taking sufficient care to bring the surfaces together so as to produce an electrical contact. The piezo-electric element may be constructed as a feedlock element (Fig. 2) as is known in the art. Such a transducer may form the sound transmitter of a warning device and may be incor-  porated in an oscillator circuit (Fig. 5a) which is switched between two frequencies, e.g. 2À3 KHz and 3À9 KHz corresponding to natural resonant frequencies of the board 4. To achieve two such natural resonant frequencies, the board may be rectangular or the resonant board may be divided into two or more sections driven by a common piezo-electric disc, e.g. by the use of suitably located slots, such that each section acts as a resonant plate. By arranging the two or more resonant frequencies to be close together a bandpass-type response may be achieved. The board 4 may be a printed circuit and the components of the oscillator and multivibrator can then be mounted on the boards at points of null vibration (Fig. 6, not shown). Alternatively the transducer may form an extension of a P.C.B. on which the components are mounted and being joined thereto by two necks which carry conductive layers extending from layers 5a, 5b. The transducer may be used at ultrasonic frequencies and may form a transmitter or receiver.
Patent GB-1248294-A (GB)
Title: Electrical rotational speed sensing device
IPC: G01P3/488
Filed: 1969-03-03
Abstract: 1,248,294. Dynamo-electric machines. KELSEY-HAYES CO. 3 March, 1969 [18 April, 1968], No. 11322/69. Heading H2A. [Also in Division G1] A rotational speed sensor comprises a bearing 14 supporting a hub 10 for rotation on a spindle 12, an annular sensing assembly 24 including a pick-up coil assembly, 44, mounted adjacent to a permanent magnet, 53, which magnet is concentric with a polepiece, 54, having teeth, 56, and which magnet extends around a major part of the circumference of an annular support member 42. Fingers 70 are circumferentially disposed about a rotatable hub, 10, so that in use they interact with the teeth to vary the reluctance of the magnetic circuit between a maximum and a minimum condition. Either the magnitude or the frequency of the coil output voltage may be used as the measure of the rotational speed of the hub. The sensor may form part of a skid-control braking system such as that described in Specification 1,197,114. The magnet may be of a plastics material impregnated with magnetized barium ferrite particles. It is stated that the magnet may comprise a plurality of segments, and that it may extend only for 180 degrees about the circumference of the support member, when the circumferential polepiece provides uniformity of magnetic flux.
Patent GB-1031985-A (GB)
Title: Cocking handle for automatic and semi-automatic firearms
IPC: F41A3/72
Filed: 1963-03-21
Abstract: 1,031,985. Cocking handles for firearms. F. WALTHER. March 21, 1963 [March 23, 1962], No. 11325/63. Heading F3C. In an automatic or semi-automatic firearm having a reciprocating breechblock, the cooking handle is optionally linkable with the breechblock so that during automatic or semi-automatic fire, the cocking handle is disconnected from the breechblock but connection is established for initially cocking the firearm and for reciprocating the breechblock for removal of dirt and for remedying ejection and loading faults. In one form, the cocking handle 3 may be depressed against the action of a spring 5 to cause a pin 2 to engage in a trough 10 in the front part of the breechblock 9. The handle 3 and associated slide 6 are normally held in the forward position against a stop 8 by a spring 7. The handle 3 may also be rotated so that a projection on the pin 2 engages in a recess in the cocking slide 6 to retain it in the engaged position with the breechblock. In another embodiment, the handle 3 and pin 2 are depressed by turning on a coarse-pitch screw-thread. In further embodiments, Figs. 5, 6 (not shown), a lever is pivoted to engage the breechblock and a levercam arrangement is arranged to depress a pin into engagement with the breechblock.
Patent GB-1102152-A (GB)
Title: Improvements in or relating to the measurement of force
IPC: G01P15/08
Filed: 1966-03-15
Abstract: 1,102,152. Measuring force electrically. NORTH AMERICAN AVIATION Inc. March 15, 1966 [March 19, 1965], No. 11365/66. Heading G1N. A force, e. g. rocket engine thrust, is measured by applying it to a force transmitting structure, e.g. the rocket engine, opposing it by a counter force applied by way of a force measuring device, and adding the output from the force measuring device to a signal indicative of the acceleration of the structure so as to obtain a signal indicative of the force to be measured. The force measuring device may be a load ring, spring-loaded differential transformer, strain gauge column or other load cell, and the acceleration may be measured by means of an accelerometer of the Piezo-electric compression type or of the strain gauge or differential transformer type. The transducer outputs are supplied by way of respective potentiometers to the inputs of a summing amplifier. The load cell responds to mainly to static and low frequency forces, while the accelerometer responds to the high frequency content of the input force, and also compensates for overshoot and oscillation of the load cell. The load cell, which is temperature compensated or temperature insensitive, is calibrated by loading with weights, and the accelerometer potentiometer is then adjusted until residual oscillations following striking of the apparatus with a hammer are minimized.
Patent GB-1041369-A (GB)
Title: Improvements in or relating to time pieces
IPC: G04B18/02
Filed: 1964-03-18
Abstract: 1,041,369. Clocks and Watches. T. W. HEY. Feb. 2, 1965 [March 18, 1964], No. 11377/64. Heading G3T. A timekeeping device has a speed regulator 25, 26, Figs. 1 and 2 (not shown), two wheels 24 and 30 frictionally coupled to each other by a spring 37, wheels 27 and 28 drivably connecting the wheel 30 to the regulator segment 26, a time setting member 10, wheels 20, 21 and 22 for adjusting the time, a coupling 13 to connect the wheels 20 and 24 by axial movement of the member 10 so that they can be simultaneously driven by rotation of the member 10, a finger 40 movable by the axial movement of the member 10 into and out of engagement with the teeth of the wheel 30 and movable with this wheel as it rotates, and stop means 42 and 43 to limit the movement of the finger with the wheel in both directions. The wheel 30 may mesh directly with the segment 26. A further embodiment discloses a setting member 10 which may tilt a lever carrying a wheel at each end which simultaneously engage the wheel 20 and 24, the lever carrying the finger 40. Another embodiment discloses the axis of the setting member 10 parallel with the axis of the wheels 20 and 24 which mesh together, the spindle of the member 10 carrying a wheel that meshes with wheels 20 and 24 and also carrying a finger that engages the wheel 30.
Patent GB-312763-A (GB)
Title: Improvements in or relating to loom buffers
IPC: D03D49/36
Filed: 1928-04-18
Abstract: 312,763. Howard, W. L., and Proctor, Ltd., R. April 18, 1928. Checking shuttles and pickers.-Buffers of the barrel kind are formed from strips of leather shaped to conform to the picking spindle, and are re-inforced with raw hide such as buffalo hide. The buffer shown in Figs 1 and 2 comprises a leather strip f having a leather insertion g of the same width, and covered by a narrower strip i of raw hide, a belt lace or wire staple j and rivets k being provided. When the raw hide strip dries, it forms a frame for the leather. In some cases, the raw hide strip extends at the sides to the faces of the buffer.
Patent GB-672915-A (GB)
Title: Improvements in aircraft
Inventor: PROWER CHARLES WILLIS
IPC: B64D25/12
Filed: 1949-04-29
Abstract: 672,915. Escape apparatus for aircraft. BLACKBURN & GENERAL AIRCRAFT, Ltd. May 24, 1950 [April 29, 1949], No. 11480/49. Class 4. In an aircraft having a cockpit detachable from the fuselage in an emergency, the cockpit is made noseheavy and is formed with passages towards its rear through which air may flow on its being detached from the fuselage to give a degree of stability in pitch and yaw. As shown the nose 2 of a fuselage 1 is detached at 3 in an emergency by an explosive charge and carries with it the air intake ducts 6, 7 which normally supply the propulsion unit. The extremities of the ducts may be swung about pivots 8, 9 by jacks 12, 13 to increase the drag to assist deceleration. Parachutes 16, 17, 18 are brought into operation or extendable rotating blades may be provided to obtain a safe landing speed, the nose fairing 19 crumpling on impact or penetrating the ground as shown in Fig. 6. The pilot may remain in the cockpit or bale out when a safe airspeed is attained. The cockpit may be pressurised or an oxygen supply 21 carried. In order that the centre of gravity of the cockpit may be moved forwardly, the guns or, as shown, the nosewheel 14 can be jettisoned from the rear of the cockpit after separation from the fuselage which, owing to the rearward movement of its centre of gravity, will rise and clear the cockpit. Specifications 651,436, 672,914 and 672,917 are referred to.
Patent GB-866212-A (GB)
Title: An improved device for use in conjunction with load lifting apparatus
IPC: B62B1/14
Filed: 1957-04-09
Abstract: 866,212. Tines for lift trucks. KENNETT, J. E. July 9, 1958 [April 9, 1957], No. 11497/57. Classes 78 (3) and 78 (4). A lifting-device for attachment to the arms 2 of lifting apparatus such as the lift trucks described in Specifications 807,892 and 866,211 comprises a horizontal shaped frame 1 which rests on the arms and carries laterally-adjustable tines 4 which are engageable with loads at ground level. Tension members 6 are connected between the side arms of frame 1 and a horizontally slotted member 5 to which the tines are adjustably bolted. The upper ends of the tines are guided by rods 3a.
Patent GB-887757-A (GB)
Title: Anthelmintic composition containing dithiazanine iodide
Inventor: HESSEL FREDERICK ADAM
IPC: A61K47/32
Filed: 1960-04-04
Abstract: An anthelmintic composition consists of an aqueous solution containing 0.03 to 0.2% of dithiazanine (3,31 - diethylthiodicarbocyanine iodide) and 2 to 16% of polyvinyl pyrrolidone having the general formula <FORM:0887757/VI/1> wherein R is hydrogen or methyl, R1 is hydrogen, methyl or ethyl and n represents a number representative of the degree of polymerization as characterized by K values ranging from 10 to 100 (molecular weights 500 to 200,000).  The solubilizer may be poly-N-vinyl-2-pyrrolidone, or the 5-methyl, 5-ethyl, 3-methyl, 3,3-dimethyl, 4-methyl or 4-ethyl derivative of poly-N-vinyl-2-pyrrolidone.  The solution is for oral use in the treatment of intestinal worms and may be diluted with fruit juices and carbonated beverages.  Reference has been directed by the Comptroller to Specification 842,749.
Patent GB-256542-A (GB)
Title: Improvements in packing glands for rotating shafts
IPC: F16C33/78
Filed: 1926-05-05
Abstract: 256,542. Lightfoot, K., Hurst, W. F. F. Martin-, and Lightfoot Refrigeration Co., Ltd. May 5, 1926. Stuffing - boxes substitutes for. - Packing for a rotating shaft, particularly applicable for refrigerating apparatus comprises a ring h carried by a dia. phragm k, preferably corrugated, and pressed towards the collar e on the shaft by a spring or springs l. The collar e is secured to the shaft by a tapered pin f, or otherwise, and is packed by a rubber ring g. Lubricating fluid collects in a space j.
Patent GB-1318846-A (GB)
Title: Current converter arrangements
IPC: H02K19/36
Filed: 1972-03-14
Abstract: 1318846 Semi-conductor rectifiers SIEMENS AG 14 March 1972 [26 March 1971] 11877/72 Heading H1K In a 3-phase current converter for the shaft of an electrical machine a structure 1 comprises two conductive component rings 2, 3 peripherally insulated by interlayer 5, and at three equally spaced regions radial projections 2a of the outer ring receive in space 22 a pair of disc rectifiers 12, 22 tangentially aligned and radially disposed; the major opposed faces of each cell constituting electrodes. Spaces 22 have cast resin linings 7a homogeneous with cast resin insulation 7 on the faces of the inner ring 3 and the outer ring 2, and covers 8 screwed to the projections 2a have annular grooves on their inner faces to receive projections of the rectifier cells 12; the associated cells 13 being engaged by spring-loaded contact pins 18 in sleeves 20 of the inner ring 3. Intermediate contacts 14 interconnect the cells, which are urged against the covers by the pins 18, and are respectively connected over conductors 15 and nipples 16 to phase connecting members 17 extending through insulant walls 7a and apertures of projections 2a. A radial projection diametrically opposite projection 2a encloses space 2b containing smoothing capacitors and other components connected to rings 2, 3: embedded in cast resin. Connections 9, 10 of the inner and outer rings provide positive and negative poles to the rectifier star points, and the inner ring is mounted on an insulant boss 4 secured non-rotatively to the machine shaft, or alternatively direct to the shaft for positive or negative connection to the exciter winding.
Patent GB-685101-A (GB)
Title: New or improved candlesticks
IPC: F21V35/00
Filed: 1951-05-22
Abstract: 685,101. Candle - holders. SOC AR.L. METALPRES, and PERNICI, D. May 22, 1951, No. 11946/51. Class 75(i) A dual purpose candlestick, e.g. for use as shown in Fig. 1 for indicating the place of a guest or for use as shown in Fig. 2 for decorating a cake, comprises a standard 1 having a spike 6 at its upper end for receiving a candle holding cup 2 when the candlestick is used as in Fig. 1, and a pedestal 4 in the cavity of which is disposed a second spike 8 which does not contact a plane on whjch the pedestal is placed and which receives the cup 2 when the spike is inserted in a cake 10.
Patent GB-309925-A (GB)
IPC: A01D75/30
Filed: 1928-10-27
Abstract: 309,925. Worthington, C. C. Nov. 28, 1927, [Convention date] Divided on 301,382, Axles and axle structures.-The axle casing 20 of a lawn tractor which may be moved either by power or by hand contains non-reversible worm gearing 13, 14, differential gear 15 and a friction plate clutch 26 provided between one of the differential sun wheels 15 and a wheel-shaft 24. The differential gear and the clutch are housed in the axle casing 20, being separated by a partition 23 so that a dry plate clutch may be used while, the differential runs in oil.
Patent GB-527809-A (GB)
Title: Improvements in or relating to means for securing manually operable, rotatable, control members to spindles
IPC: F23D14/32
Filed: 1939-04-21
Abstract: 527,809. Securing knobs on shafts. BRITISH OXYGEN CO., Ltd., WOODHEAD, H. E., and PELL, P. W. April 21, 1939, No. 11985. [Class 80 (ii)] A hand-knob 17, for a valve 5 or variable electric condenser, is secured to a spindle 6 by means of a diametral pin 16, passed through or threaded into a hole in the spindle after the knob 17 has been positioned thereon, and retained in a closely fitting recess 18 in the knob by means of an axial compression spring 19. Renewal of stuffing box packing 11 is there by rendered possible without disturbing the setting of the valve 5 The gland-nut 14 may be dispensed with, the spring 19 then serving to compress the packing 11. The valve-body 1 is connected at one end 3 to the head of a blow-pipe, the valve 5 serving to regulate the flow of gas thereto.
Patent GB-1000828-A (GB)
Title: Sulfiding of nickel- and/or cobalt-containing catalysts
IPC: B01J23/75
Filed: 1963-03-26
Abstract: A catalyst selected from Ni, NiO, Co and CoO contained in a reactor is sulphided in situ by a method which includes the following sequence of steps: (a) purging the reactor and catalyst of substantially all oxygen-containing fluids with an inert gas, (b) passing a heated gaseous mixture, containing hydrogen and from 2-25 vol. per cent C3 and lighter hydrocarbons, into the reactor to purge at least a major portion of the inert gas therefrom, (c) at least one of steps (a) and (b) effecting the heating of the catalyst to a temperature in the range of from 350-600 DEG F., the heating being conducted such that essentially no water contacts the catalyst at a temperature below 250  DEG F., (d) recycling at least a major portion of the hydrogen containing gaseous mixture through the reactor, (e) injecting a sulphide into the recycling hydrogen containing gaseous mixture such that the resultant gas contains at least 0,2 mol. per cent S, and (f) continuing the addition of the sulphide until the sulphur content of the effluent gas from the reactor is substantially the same as gases entering the reactor.  The catalyst may be supported on SiO2/Al2O3.H2S, mercaptans or organic sulphides may be used as sulphiding agent.  Specifications 921,967 and 1,000,829 are referred to.
Patent GB-314168-A (GB)
Title: Improvements in balls for lawn tennis and like racquet games
IPC: A63B39/06
Filed: 1928-04-24
Abstract: 314,168. Ayres, Ltd., F. H., Ayres, C. M., and Smith, J. H. April 24, 1928. Balls.-A ball for lawn tennis and like racket games comprises an inflated hollow spherical indiarubber core upon which is cemented a covering of rebound-checking material such as melton cloth, felt or flannel, and, upon the outer surface of said covering, a continuous external shell of indiarubber compound vulcanised to adhere thereto without impregnating the same. The external surface of the ball may be roughened by " dimpling,?' etc. According to the provisional Specification, a layer of cork composition may take the place of the rebound-checking covering.
Patent GB-1149991-A (GB)
Title: Improvements in or relating to electrical wall-mounting boxes
Inventor: GOODIER GEOFFREY THOMAS
IPC: H02G3/18
Filed: 1967-03-15
Abstract: 1,149,991. Switch cases. VOLEX ELECTRICAL PRODUCTS Ltd. 29 March, 1968 [15 March, 1967], No. 12046/67. Heading H1N. An electrical wall-mounting box A having a separate annular plate D provided with tapped sockets G for the attachment screws of a switch or other fitting has plate D mounted on the rim of the box A and retained in position by engagement of its outer pirephery under the heads of screws F recessed into the rim, so as to be capable of 360 degrees of angular movement relative to the box A. A surface-plate K is provided between the plate D and the fitting. Box A and surface plate K are of rigid polyvinyl chloride and plate D of steel. An earthing terminal H is provided on plate D. The plan of box A is an irregular decagon with two opposed sets of three equal sides connected by two pairs of larger sides and circular " breakouts " B are formed in two of the larger sides and two of the shorter sides at right angles to the latter.
Patent GB-377704-A (GB)
Title: Improvements in or relating to coin-freed weighing machines
IPC: G07F9/02
Filed: 1931-04-23
Abstract: 377,704. Coin-freed weighing apparatus. TUNSTILL, A. F., of St. George's Engineering Works, London Road, Southwark, London. April 23, 1931, Nos. 12058/31 and 496/32. [Classes 27 and 143.] Coin action, weight.-In a coin-freed weighing machine of the type giving both a visible indication and an audible announcement of the weight, the weight of a person on the platform draws down against springs 7 a bar 3 connected to a rod 13 which positions a soundbox 51 relatively to a record 35 according to the weight, and through a rack 15 and pinion 17 rotates a semi-transparent or opaque annulus behind a window 25 on which is painted a pointer 27. A scale 29 is provided on the back of the annulus and becomes visible when an electric lamp 33 is lit after the insertion of a coin. The depression of the bar 3 allows the movable member of a switch 57 to drop and close the circuit of an electric motor 47, this movable member being connected to the bar bv a chain 59. The motor drives the turntable 37, which is mounted in a vertical plane, through a belt and pulley drive 41, 43, 45, the motor being carried by a rocking arm 49 to allow slip of the belt until a coin is inserted to release the turntable which is normally held by a detent 61 engaging a notch 67. The coin passing down a shoot 31 strikes an arm 69 and rocks a shaft 63 carrying the detent 61 and a counterbalance weight 65. An arm 73 on the shaft closes an auxiliary switch 71 which keeps the motor circuit closed until the turntable makes a complete revolution, in the event of the person stepping off the platform and opening the switch 57. To prevent shock when the turntable is stopped, the shaft 63 can move axially, a spring 77 being inserted between the detent 61 and the adjacent bearing of the shaft to act as a shock-absorber. The lamp 33 is of small voltage, say 10 volts, and is in series with a pair of lamps, of say 220 volts, connected in parallel to electric lighting mains, these lamps being normally alight to direct attention to the machine. The lamp 33 is normally shortcircuited through a switch 93 which is opened when the shaft 63 is rocked by a coin, the moving element of the switch being mounted on the shaft.
Patent GB-1480046-A (GB)
Title: Cooling arrangement for a generator
IPC: H02K9/00
Filed: 1976-03-25
Abstract: 1480046 Gas turbine plant-closed circuit KRAFTWERK UNION AG 25 March 1976 [29 April 1975] 12152/76 Heading F1G [ Also in Division F4] In a turbo-generator set, which may be incorporated in a nuclear power-plant, comprising a compressor 1, a gas turbine 2 and a generator 3, the generator 3 is cooled by helium which passes from a high-pressure tap 9 of the compressor through a cooler 10 to the generator. From the generator, the helium passes through ducts 13, 14 back to the compressor at a region of low pressure, e.g. the compressor inlet duct 5. An exciter set 4 may be cooled in the same way in parallel with the generator through ducts 15, 16.
Patent GB-698762-A (GB)
Title: Improvements in pastry products and preparation thereof
IPC: A21D13/00
Filed: 1951-05-24
Abstract: In order to protect unbaked pastry dough from deterioration resulting from contact with an adjacent moist filling, a thin coherent layer of an edible moisture-impervious material which is substantially non-liquid at room temperature, e.g., fat or shortening, is interposed between the dough and the filling.  The layer may be applied to the surface of the dough adjacent the filling.  The outer surface of the dough may be protected by a similar impervious layer against deterioration caused by dehydration.  The layer may be formed by chilling the dough below room temperature and applying to its surface a coating of molten fat which sets on contact.  An unbaked pie may comprise a lower layer of dough, a filling and an upper covering layer of dough which is sealed in contact with the periphery of the lower layer, the surfaces of both layers of dough adjacent the filling being provided with a layer of the moisture-impervious material.  The latter may be a natural fat, e.g. beef fat, butter, cocoa butter, coconut oil "stearine," lard and palm kernel "stearine," or it may be a synthetic fat, e.g. glycerol mono-cocate, mono-stearate or mono-oleate, hydrogenated cotton seed, sesame or peanut oil, mannitan mono-stearate or mono-palmitate, margarine, propylene stearate, propylene glycol mono-stearate and sorbitan mono-palmitate.