baber/WOPTO huggingface dataset:
Patent GB-1419665-A (GB)
Title: Method for welding a metal pipe to a metal gody by means of an  explosive charge
IPC: B21D39/06
Filed: 1973-12-13
Abstract: 1419665 Welding by pressure; jointing by tube expanding; dividing ULTRACENTBIFUGE NEDERLAND NV 13 Dec 1973 [13 Dec 1972] 57826/73 Headings B3J B3R and B3W In explosively welding a metal pipe 2 having a circular cross section in a cylindrical opening 4 in a metal body 1, the outer diameter of the pipe being smaller than the diameter of the opening, the pipe is positioned coaxially in the opening and in a circular opening 12 in a metal plate 11 detachably secured to the body, the plate opening 12 having a minimum diameter equal to the outer diameter of the pipe and a maximum diameter, adjacent the body, equal to the diameter of the opening 4 and the surface of the opening 12 between the maximum diameters being curved in crosssection and having a radius of curvature equal to or greater than the difference between the radius of the opening 4 and the radius of the pipe, an explosive charge 6, having a detonation velocity equal to the sonic velocity of the pipe metal, is positioned in the pipe and detonated so that the explosion commences in the portion of the charge within the opening 12 in the plate. In one embodiment the plate 11 is secured to a wall 1 by clamps, bolts or a holder and after detonation of the charge the pipe becomes welded into the bore but although the pipe is thrust against the aperture in the plate, the presence of oxides, &c. prevents welding thereto. The wider end of the aperture 12 in the plate has a radius of curvature 13 which may be at least equal to the width of the gap 3 between the pipe and the bore and at most equal to two and a half times the said width then upon detonation the portion of pipe 2 above the bore will be severed. If the radius of curvature is at least equal to four times the width of the gap shearing does not take place. A number of pipes may be welded simultaneously into a numbr of bores in a wall. A smaller pipe may be welded into the wall of a larger pipe, the upper plate being curved to fit the interior of the larger pipe and being supported by a block fixed in the larger pipe. One of the electrodes for the firing charge is in contact with a conductor in the block and the electric firing supply is connected to the pipe and to the conductor in the block.
Patent GB-1201974-A (GB)
Title: False alarm suppression device
Inventor: BUCKLEY NORMAN IAN
IPC: G08B13/16
Filed: 1968-12-10
Abstract: 1,201,974. Burglar alarms. SHORROCK DEVELOPMENTS Ltd. 10 Dec., 1968, No. 58638/68. Heading G4N. [Also in Division H3] In a burglar or other alarm system, an electrical signal is derived in response to the undesired condition, the signal being amplified (e.g. by transistors T2 ... T5) and fed to an integrator (not shown) arranged to operate an alarm after a predetermined number and/or duration of signals. At the end of each signal the amplifier is arranged to be suppressed (e.g. by transistor T1) for a predetermined period. When applied to a burglar alarm of the type involving a sound-detecting microphone or a high-frequency standing wave pattern, the invention tends to minimize false alarms due to single movements such as that which may result from an article falling from a table. As described, the signal from a transducer (not shown) is amplified and, if sufficiently large to pass level detecting diodes D1, D2 would turn on transistor T2 and turn off T3, T4 so as to release a relay N. T4, T5 form Schmitt trigger which thus turns on an indicator lamp L. Contacts N1 now charge capacitor C1. At the end of the signal, the transistors T2 ... T5 are restored to their previous conductive states, releasing relay N so that the voltage on C1 turns on T1 which shortcircuits the input for a period whilst C1 discharges via R1. Contacts N2 feed an integrator (not shown) which initiate an alarm after a predetermined number or duration of signals.
Patent GB-594307-A (GB)
Abstract: 594,307. Centrifugal compressors. MEISSER, C. Dec. 8, 1944, No. 24596. Convention date, Dec. 11, 1943. [Class 110 (i)] In a helico-centrifugal compressor, the blade angle to the peripheral direction increases from the inlet through a first zone E, Fig. 2, and thereafter through a second zone F decreases to a minimum at the outlet where the cosine of the blade angle is greater than Vr/2Á The rotor may be made in two parts 12, Fig. 4, corresponding to the two zones and the part 12 of the zone E may be built up of several discs. A fairing 5 is secured to the inlet end of the rotor, Fig. 4. The blading may be continuous through the two zones, or, the blades in the zone E may be of aerofoil cross-section and of a different number from those in zone F. In a construction having the rotor part 12 made of three discs, the bladings may be such as shown in Fig. 8 and the inlet end of the rotor may have a bearing in a part forming an inlet fairing integral with the casing. The inlet part 12 of the rotor may be made interchangeable so that the compressor may be adapted to different working conditions by changing the inlet part of the rotor. The inlet part may be a casting or built up by welding blades to a hub or a pressing in a plastic. The blades in the inlet part may be angularly adjustable while at rest or during running. Specification 567,368 is referred to.
Patent GB-1428960-A (GB)
Title: Restrictor stays primarily for pivoted window structures
IPC: E05C17/16
Filed: 1972-12-23
Abstract: 1428960 Slotted arm window stays AUTOMATIC PRESSINGS Ltd 21 Dec 1973 [23 Dec 1972] 59581/72 Heading E2F A window stay, of the type in which a stud portion 30 mounted on a window 12 engages in a slotted arm 44 pivotally attached at 56 to a window frame mounting bracket 36, a sliding catch member 54 (Fig. 2) is mounted on the arm and is gravity biassed in the position shown in Fig. 1 with the arm hanging vertically to block openings 70, 72 from the slot but to allow, by means of cam face 104, the stud to enter the slot via opening 70. When the window is opened the stud slides down the slot while the arm 44 pivots outwards until portion 76 of the slot is reached and no further opening is possible. The catch member 54, which is guided on pins 56 and 90, can be manually released to allow the stud to leave via opening 72 and allow full opening of the window. The arm 44 drops back to the position shown and gravity resets the catch member. When the window is closed the stud re-enters the slot via opening 70-acting on the cam face 104 to get past the catch. In a modification (Fig. 4 not shown) the opening 72 and the slot end portion 76 may be spaced along the longitudinal axis of the arm so that the stud must be returned a little from its end position before it can be released from the slot. This provides additional security against accidental release. When the window is of the centre pivoted type which may be turned through 180‹ for cleaning a further catch (Fig. 3 not shown) is provided on the window frame to engage the stud in the fully turned window position.
Patent GB-1376719-A (GB)
Title: Rotary mowers
IPC: A01D34/66
Filed: 1970-12-19
Abstract: 1376719 Rotary mower MASSEY-FERGUSON-PERKINS Ltd 30 Nov 1971 [19 Dec 1970] 60428/70 Headings A1F and A1P A rotary mower is supported from below by a ground engaging bar 22 and is driven from above via a shaft 9. A hitch 14 is pivotally connected to one end 21A only of the rotor support bar 22, and the mower be mounted on tractor draft links 11, 12 so that in use the rotor assembly is offset to one side of the tractor. A dragbar 21 is bolted at one end to the underside of gearbox 5 and the other end of the bar is connected by pivot 21A to rotor bar 22. A break back 22A, which is dismantled when the rotor assembly is raised, permits the whole rotor assembly to swing rearwards about the axis of centre tube 16 if the rotors strike an obstruction. The rotors are driven by the p.t.o. shaft (not shown) of the tractor through first, second, and third bevel gearboxes 5, 6, 7 respectively and first, second, and third drive shafts respectively. Ground-engageable skids are secured to the underside of rotor bar 22 below each rotor, and the rotor bar supports the drive mechanism for the rotors. Part of this transmission member, which extends downwardly from a position above the rotor, is formed of aluminium. The hitch includes means for raising the rotors for transport. The draft links 11, 12 raise A-frame 15 via arms 17, 18 and lift lever 38, which is pivotally mounted on the frame, carries lift links 36, 37. The assembly is raised about an axis through spigot 48. After raising the rotors they can be manually swung rearwards, about the axis through centre tube 16, to a position ready for transport. In modifications a hinge 52 Fig. 6 (not shown) between rotors 2, 3 permits relative movement between the rotors and a four drum mower, with two pairs of rotors mounted on a rotor bar 62 Fig. 7 (not shown) is hinged between the two pairs of rotors. The rotors are driven by means of hydraulic motors.
Patent GB-1337594-A (GB)
IPC: B63B7/08
Filed: 1970-12-23
Abstract: 1337594 Centre boards; inflatable craft METZELER AG 23 Dec 1970 [23 Dec 1969] 61050/70 Headings B7A and B7V An inflatable boat is provided with a centre board 13 guided in a flexible sleeve 18, and keelson tubes 9 located between the flexible outer skin 5 and boards 7, which tubes exert pressure on the centre board and keep it upright. Stays 15 may also be provided to support the upper end of sleeve 18. The invention can also be applied to a rigid boat (Fig. 5, not shown. With the centre board withdrawn and stays 15 detached, the sleeve can be rolled up and stowed under boards 7 to facilitate rowing should this be desired.
Patent GB-1245329-A (GB)
Title: Crank gear
Inventor: BONETTO FILIPPO
IPC: F02B75/04
Filed: 1969-12-17
Abstract: 1,245,329. Linkwork. F. BONETTO. 17 Dec., 1969 [4 Oct., 1969], No. 61442/69. Heading F2K. The big-end 5 of a connecting-rod 4 is attached to a crank-pin 6 by an eccentric 8 which is rotatable with respect to the big-end 5 and to the crank-pin 6, and has a pinion 9 formed integrally therewith, which pinion 9 meshes a crown gear 10 secured to the engine crank-case. As the crank rotates, the effective length of the connecting-rod 4 is varied automatically.
Patent GB-1332150-A (GB)
Title: Glass-to metal hermetic seal and device employing same
IPC: H01G9/10
Filed: 1970-12-24
Abstract: 1332150 Glass-metal seals GENERAL ELECTRIC CO 29 Dec 1970 [29 Dec 1969] 61681/70 Heading C1M [Also in Division H1] In a glass-metal seal 10 for a sealed casing, the composition of the glass is 63 to 65% SiO 2 , 2 to 3% Al 2 O 3 , 2 to 3% Na 2 O, 6 to 8% K 2 O, 0 to 2% CaO, 4 to 6% BaO, 0À2 to 1% Cr 2 O 3  and 15 to 17% B 2 O 3 , and is chosen so that its mean coefficient of thermal expansion is not greater than that of the metals in contact with it and differs therefrom by not more than 15 x 10<SP>-7</SP> cm./cm./C. over the range 0 to 300 C. to provide a matching or slight compression seal. The seal is suitable for electrolytic capacitors wherein the electrolyte comprises 35 to 45% sulphuric acid. As shown seal 10 comprises glass body 12 fusion sealed to tantalum eyelet tube 20 and to tantalum casing 40, the latter being of allwelded construction. Sintered pellet tantalum anode 50 is spaced from casing 40 by P.T.F.E. member 60 and from seal 10 by P.T.F.E. spacer 30. Ceramic heat shield 70 protects the anode when bottom cover 90 is being welded to the casing. Tube 20 is sealed by welding at 22 after filling the casing with electrolyte. The capacitor is stated to have a reverse voltage capability of at least - 1 volt at 85 C. In another embodiment (Fig. 2, not shown) the glass body is fusionsealed to a tantalum lead wire and to a surrounding tantalum ring which is welded or soldered to the casing. The casing may be tantalum, stainless steel, steel, silver, silver alloy, nickel, titanium, aluminium, zinc or copper and may have a conductive coating on its inner surface. The anode may alternatively be aluminium, zirconium or niobium. In a method of manufacturing the seal an annular glass member of the stated composition is located between the inner and outer metal members in a recess in a support in the presence of a getter, e.g. titanium or tantalum and the assembly heated to about 1000 C.
Patent GB-1256180-A (GB)
Title: Organophosphorus compounds
Inventor: SAITO TORANOSUKE
IPC: C07F9/38
Filed: 1969-12-31
Abstract: 1,256,180. Phosphorus-containing biphenyl and phenanthrene derivatives. SANKO CHEMICAL CO. Ltd. 31 Dec., 1969, No. 63532/69. Heading C2P. The invention comprises compounds of the Formulµ I to VI where X is halogen, hydroxyl, amino, C 1-22  alkyl, alkoxy or alkylthio, aryloxy (which may be substituted by phenyl or halogen) or arylthio, Y 1  and Y 2  may be the same or different and are halogen, C 1-18  alkyl, aryl, alkoxy or aryloxy, C 2-18  acyl, nitro, cyano or sulphonic acid, or Y 1  and Y 2  may form a phenanthrene compound with the biphenyl ring system, Z is oxygen, sulphur or two halogen atoms, m and n are 0-4 and p and q are 0-3, and salts of those compounds containing OH bonded to phosphorus, or containing sulphonic acid groups. The compounds of the invention may be prepared by heat-condensation of one or more compounds of Formula VII with a compound of Formula VIII where X 1,  X 2  and X 3,  which are the same or different, are halogen or aryloxy and subsequent optional further reaction such as ester interchange or hydrolysis. The compounds are used as antioxidants for polymers, and as insecticides fungicides and flame-retardants.
Patent GB-1302170-A (GB)
IPC: A61B5/093
Filed: 1970-12-04
Abstract: 1302170 Recording apparatus SHERWOOD MEDICAL INDUSTRIES Inc 4 Dec 1970 [17 Dec 1969] 57756/70 Heading G1J [Also in Division A5] A recording spirometer comprises a frame 11, Fig.1, a marking assembly 21, Fig.10, mounted for movement relative to the frame, air expandable means 18 for controlling movement of the marking assembly, a record receiving assembly 105 for holding a record 23 in co-  operation with the marking assembly, and a transparent cover 116 carried by the record receiving assembly for holding the record in position for marking, the arrangement being such that, in use, the marking assembly 21 marks the record 23 on its surface remote from the cover 116. The air expandable means 18 is in the form of a bellows provided with rigid upper and lower plates (45), (43), respectively, Fig. 5 (not shown), hingedly connected, the marking assembly 21 in the form of a stylus being carried by the upper plate (45). The bellows is removable from the frame 11 and is provided with a detachable conduit 28 for conveying a patient's expiratory air to the interior of the bellows. The record receiving assembly 105 is mounted for reciprocal movement from side to side by an electric drive system 16 comprising a relatively high-speed motor 140, e.g. 10 rpm, a relatively low-speed motor 141, e.g. 1 rpm, a switch 170 being provided for motor selection, and a belt 150. The cover 116 is pivotally secured to the record assembly 105. The record 23 is pressure sensitive so that a tracing on the record may be viewed through the cover 116. The drive system 16 is actuated upon initiation of exhalation by the patient. The bellows 18 and its associated stylus assembly 21 may be manually preset to a predetermined point on the record 23. The record assembly 105, the cover 116 and consequently, the record 23 are generally arcuate in cross-section, the centre of curvatures of the arcs being substantially coincident with the pivotal axis of the bellows, so that, in use, a linear plot is subscribed on the record by the stylus assembly.
Patent GB-724492-A (GB)
Abstract: 724,492. Supplying liquid fuel to burners. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. June 15, 1953 [June 16, 1952], No. 16366/53. Class 75 (1). In a vapour burner installation comprising a blower 1 supplying combustion air to a burner 3, and a fuel supply control means including a chamber 4 having a float-controlled inlet valve 7 and communicating with a second chamber 12 from which fuel is discharged to the burner 3, the float chamber 4 is connected to the pressure side of the air blower, as by pipes 16, 17, the chamber 12 being at atmospheric pressure, and either the fuel supply connection between the chambers 4. 12, or from the chamber 12 to the burner 3, is such that when the'air blower 1 is inoperative the fuel supply is kept at a rate sufficient to.maintain a pilot flame at the burner 3. As illustrated the connection between the chambers 4, 12 comprises needle valve controlled overflow pipes 8, 9, the outlet ends of which are, respectively, below and above the normal float-controlled level of liquid fuel in the chamber 4. When the air blower 2 is operating the air pressure applied to the chamber 4 causes fuel to flow through both pipes 8, 9, but when the air blower is inoperative pilot supply of fuel is maintained through the pipe 8 only. From the chamber 12 the fuel passes to the burner 3 through a pipe 13 past an inspection window 14 and through an auxiliary reservoir 15. On starting the blower 1 compressed air is fed to the reservoir 15 through pipes 16, 18, and forces fuel therefrom to the burner to prevent blowing out of the pilot flame before the arrival of the main fuel via the passage 9. In a further construction the fuel passes directly from the float-chamber to the second chamber, and the connection from the latter to the burner comprises a discharge orifice controlled by a float valve adapted, when the fuel levels in the two chambers are equal, to allow passage of a pilot supply of fuel only.
Patent GB-2003387-A (GB)
Title: Automatic hypodermic injection devices
IPC: A61M5/20
Filed: 1978-06-07
Abstract: A device for enabling automatic hypodermic injections by means of a fluid pressure comprises a body 6 with a seat 61 for receiving a hypodermic syringe S. A first fluid pressure cylinder 4 is movable with respect to said body 6 and has a plunger 3 in engagement with the syringe piston. A pair of second fluid pressure cylinders stationary with respect to the body 6 have their plungers 5 fastened to the fluid pressure cylinder 4 so that they are adapted to move the syringe cylinder. Return springs 8 are associated with the plungers 5 for returning the plungers 5 to their starting position. Valve means are provided for controlling the admission of the pressure to the fluid pressure cylinders 4 and 10 and the release of the pressure therefrom. Coupling and control means are provided for connecting the body to a pressure source and controlling the pressure of the source, respectively. <IMAGE>
Patent GB-2000144-A (GB)
Title: Preparation of high fructose syrups by enzymatic transfructosylation of sucrose
IPC: C12P19/04
Filed: 1978-06-15
Abstract: This invention relates generally to (1) processes for the production and isolation of a novel fructosyl transferase enzyme from the fermentation broth of Pulluaria pullulans, (2) enzymatic transfructosylation of sucrose to produce a novel fructose-polymer containing substrate, and (3) production of fructose syrups containing greater than 55% fructose from said novel substrate.
Patent GB-2007817-A (GB)
Title: Gas-fueled cigarette lighter
IPC: F23Q2/28
Filed: 1978-10-20
Abstract: An electrically ignited gas lighter for cigarettes comprises an ignition mechanism sited above a gas reservoir, with valve-actuating means for supplying gas to a burner, a battery- operated electrical circuit to cause a spark to flash level with the said burner, and means for activating the electrical circuit which are unconnected with the valve-actuating means so that the user has to carry out two simultaneous actions to effect ignition, the electrical activating means activating a first switch and the valve-actuating means actuating a second, series-connected, switch 13, 14, the electrical activating means comprising a push-button 22 in the form of a detachable container in which the battery (23), Figure 2 (not shown), is inserted and which is equipped with two terminals (20) in contact with the battery poles, these terminals being able to approach or move away from two fixed terminals (25) on the mechanism which are connected to the electrical circuit, there being elastic means 24 which normally tend to move the push-button away from the mechanism. <IMAGE>
Patent GB-2008945-A (GB)
Title: Antihistamine preparations for inhalation
IPC: A61K9/00
Filed: 1978-11-27
Abstract: A pharmaceutical preparation for inhalation comprises an antihistaminic benzhydrylether, alkylamine, or benzocycloheptathiophene (e.g. clemastine, chlorphenitamine, ketotifen, or a pharmaceutically acceptable salt thereof), preferably together with a diluent or carrier, in an inhalation device. The pharmaceutical inhalation device, which is preferably designed to administer a dosage unit of the antihistamine, can be in the form of a pressurised aerosol inhaler delivering a dry powder or liquid aerosol, or a dry powder insufflator. The preparation is for treatment or prophylaxis of reversible airways obstruction.
Patent GB-2010756-A (GB)
Title: Wheel rim with means inhibiting dislodgement of tire bead from bead seat
IPC: B60C15/02
Filed: 1978-12-19
Abstract: A wheel for a pneumatic tire and designed to minimize bead unseating has a bead retaining rib or hump 20,22 adjacent at least one bead seat and extending around at least a part of the circumference of the rim thereof, the radial height of the rib gradually increasing from a zero or minimum radial height at one point to a maximum predetermined radial height and then gradually decreasing to a zero or minimum radial height at another point. At its maximum radial height the rib preferably extends radially outwardly of the radially inner part of the bead core of a tire on the wheel (Figure 4 not shown). The rib may be continuous or may be constructed by a plurality of projections of varying radial heights. <IMAGE>
Patent GB-2015844-A (GB)
Title: A device for detecting the presence of an object
IPC: B61L1/02
Filed: 1979-02-05
Abstract: A device for detecting the presence of an object. The device includes an optical fibre (7) which may be buried under a railway line 4 to be monitored, a coherent light pulse generator which injects a pulse into an end of the fibre, and a receiver which receives the pulse backscattered by the fibre. The fibre 17 has a corrugated sheath 16 (16) which intensifies the effect of local distortion on the fibre, thereby allowing measurement and detection of the position of the distortion of the fibre. <IMAGE>
Patent GB-2021754-A (GB)
Title: Method and installation for production and distribution of thermal energy with compensated transfers to the geothermal table
IPC: F24J3/08
Filed: 1979-04-19
Abstract: The installation comprises a geothermal circuit B drawing heat from the ground at 5 and returning it at 6, a heating circuit C deriving heat from exchanger 7 in circuit B and from exchanger 2 in a transfer circuit A, and a cooling circuit D rejecting heat to exchanger 9 in circuit B and exchanger 4 in circuit A. In addition heat may be extracted from industrial effluents in circuit F and from a solar heating circuit E. The installation is operated with maximum efficiency by balancing heat flows in the different circuits, using the geothermal circuit as a heat reservoir during cold weather and as a heat sink during hot weather such that there is no nett heat loss from the earth over the year. <IMAGE>
Patent GB-2021094-A (GB)
Title: Optical fiber breaker tool
IPC: G02B6/25
Filed: 1979-05-11
Abstract: A hand-held tool serves to break an optical fiber 133 cleanly at a predetermined point and is easy and reliable to use. The fiber projects from one half 13' of a connector, which connector half is engaged with a coupling 23 of the tool. The fiber is clamped by the tool at 38 and tensioned by movement of the clamp away from the coupling 23, thus bending the fiber across a curved support surface 35. Finally the fiber is transversely scored by a blade edge 81 which moves in a curved path in approaching the fiber. A heater may be provided to burn off a plastics coating of the fiber prior to scoring. <IMAGE>