baber/WOPTO huggingface dataset:
Patent GB-1486303-A (GB)
Title: Gauge with electric position transducers to measure the sizes of mechanical workpieces
IPC: G01D5/22
Filed: 1974-09-06
Abstract: 1486303 Measuring linear dimensions electrically bore gauges M POSSATI [trading as FINIKE ITALIANA MARPOSS-SOC] 6 Sept 1974 [7 Sept 1973] 39114/74 Headings G1M and G1N A plug gauge for measuring the diameter of a hole in a workpiece 37, Fig. 1 comprises a cylindrical body 1 with a threaded insert 2 carrying an M-shaped lamina extension 4 having two feelers 9, 10 at the outer corners 7, 8 and with the central corner 11 attached to a spring-loaded wire 15 to the core 26 of a differential transformer 18 located inside the body 1, whereby, when the plug gauge is inserted into the test hole, the feelers 9, 10 are brought together and the core 26 is displaced to provide an output signal from the transformer 18 indicative of the hole diameter. The lamina 4 may alternatively be U-shaped. In another embodiment Fig. 3, a V-shaped lamina 60 is fixed at one lower end 61 to a support 63 bolted to the wall of the cylindrical plug body 64. The apex 72 of the lamina 60 carries a projecting feeler 71 and the other end 62 slides on a wall 67 of support 63 when the feeler 71 is displaced during measurement and produces corresponding displacement of the core 26 via wire 15 attached to the lamina at end 62. Further assembly modifications are shown.
Patent GB-924113-A (GB)
Title: Improvements in or relating to packages for mouldable substances
IPC: A61J3/08
Filed: 1961-11-02
Abstract: 924,113. Boxes; packages. AKERLUND & RAUSING A.B. Nov. 2, 1961 [Nov. 3, 1960], No. 39231/61. Classes 18 and 94(1). The combined mould and package described in Specification 748,723 is modified in that a lid 3 is used in lieu of a slide-on cover. Corresponding notches 41, 4<SP>11</SP>, 5<SP>11</SP> in the lid and body assist in the withdrawal of the latter.
Patent GB-1346122-A (GB)
Title: Agricultural implement
IPC: A01B73/00
Filed: 1972-08-23
Abstract: 1346122 Agricultural implements convertible between transport and operating positions DEERE & CO 23 Aug 1972 [27 Aug 1971] 39321/72 Headings A1F and A1P An agricultural implement, e.g. a flailshredder has a detachable wheel assembly and tow bar arrangement whereby, when in the operative position (Fig. 2 and 4a). It extends transversely to the direction of travel and is towed by a centrally mounted tow bar 68 and in a transport position (Fig. 3) it is towed via the bar 68 connected to one end_of the implement so as to reduce its width. The implement has two ground wheel assemblies 26, 28 which are detachably connectable by means of bolts 42 and 44 to either a rock shaft 18, which is rotated by a double acting hydraulic cylinder 48 to raise or lower the wheels 30, 32, or to short, centrally mounted forward and rear stub shafts 66 (not shown) and 52. To convert the implement to a transport position, the cylinder 48 is extended so that the implement is raised to its maximum height and a stand 86 which is slidably mounted in a bracket 96, is lowered to engage the ground and support that end as the cylinder 48 is retracted to raise the assembly 26 off the ground. After unbolting assembly 26, it is bolted onto shaft 52 and the cylinder 48 retracted further until the wheel assembly 26 and stand 86 support the rear of the implement so that wheel assembly 26 can be removed. A screw jack 74 on the tow bar 68 is then lowered to support the front end of the implement when the tractor is unhitched, and so that this front side of the implement can be raised to permit assembly 28 to be bolted to the shaft 66 (not shown). The jack 74 is retracted and the tow bar 68 removed from its housing 56 in which it is held by a pin 70, and inserted in a similar housing 84 at the end of the implement. The jack 74 is pivotally mounted on the tow bar 68 so that it can 1ie therealong in a stowed position (Fig. 3).
Patent GB-979748-A (GB)
Title: Improvements in or relating to the manufacture of punches and dies
IPC: B21D37/20
Filed: 1963-10-07
Abstract: 979,748. Making punches and dies by electric erosion. TEMPLET INDUSTRIES Inc. Oct. 7, 1963, No. 39506/63. Headings B3A and B3V. A punch, particularly for working on sheet-metal, is formed by electro-erosion. The electrode is made by cutting the required profile 48 from a base block 28 of resin or preferably plywood and inserting metal die rule stock 52 into the cut between the inner and outer parts of the block. Inward compression may be applied to the outer part to hold the stock in place. Projections 62, 64, 66 are also provided to form holes in the punch. The stock 52 and the projections comprise a base of hardenable steel to which is bonded a portion 60 of brass, copper, aluminium or silver to form the eroding surface. The bonding may be performed by welding, brazing, hard or soft soldering or by cementing using epoxy or rubber adhesives. Afterwards the composite stock may be plated with copper, The portion 60 preferably provides a tip but may consist of a layer on the inside of the steel base; various forms of composite rule stock and projections are described, Figs. 6-13 (not shown). In the eroding operation, Fig. 14, the electrode is secured to an upper block 34 movable by means 88 and guided at 38 in bushings 40 of a bed 36 on which is mounted the punch stock 76. The operation is performed in a bath 84 of dielectric oil admitted through duct 102 and discharged through drain 100. D.C. pulsation of variable frequency is fed from a supply 90 to the electrode and workpiece preferably through the intermediary of copper plates 104, Fig. 15 (not shown). Thereafter the electrode portions 60 are removed from the rule stock and the projections by induction heating or by grinding, milling, routing or planing. The electrode is then used with the punch as the female die in blanking, piercing, drawing or coining operations on sheet metal. The rule stock is hardened and tempered before or after the erosion process; the punch stock is also hardened if necessary. In another embodiment, Figs. 19- 22 (not shown), the electrode is made by a moulding process from a master female die consisting of a steel rule stock. Specification 856,807 is referred to.
Patent GB-944291-A (GB)
Title: Improvements in or relating to methine dyes
Inventor: FRY DOUGLAS JAMES
IPC: G03C1/12
Filed: 1959-11-20
Abstract: Trinuclear methine dyes having one of the formulae <FORM:0944291/C3/1> <FORM:0944291/C3/2> wherein R3 and R4 are hydrogen atoms or alkyl groups, R6 is an alkyl or aralkyl group, R7 is hydrogen or an alkyl, aryl or aralkyl group, R8 is an alkyl, aryl or aralkyl group, R9 is an alkyl, aryl, aralkyl, carboxymethyl or carbalkoxymethyl group, R10 is an alkyl or aralkyl group, D1 completes a thiazole or selenazole ring or a polycyclic homologue thereof, D2 completes a 5- or 6-membered heterocyclic nucleus, x and p are 1 or 2, and X is an anion, are prepared by reacting a pyrroline dye of Specification 926,962, which has an alkylthio or aralkylthio group in the 2-position of the pyrroline ring with a quaternary cyclammonium salt having a reactive a - or g -methyl group.  Examples are given of dyes wherein R3 and R4 are both hydrogen atoms, R6 is methyl or ethyl, R8 is methyl or ethyl, R9 is ethyl, R10 is methyl or ethyl, x is 1 and D2 completes a benzthiazole ring which may carry 5-methyl, 5-chloro or 5:6-methylenedioxy substituents, or a 5-methylbenzselenazole, 2quinoline, 4-pyridine, 4:4-dimethyl-2-pyrrolidine or 4-pyrimidine nucleus.  The general formulae in the Provisional Specification are of wider scope and include dyes derived from those of the Provisional Specification of 926,962.
Patent GB-1212614-A (GB)
Title: Security system
Inventor: MASKERY CYRIL
IPC: G08B13/08
Filed: 1968-08-20
Abstract: 1,212,614. Burglar alarms. BRITISH RAILWAYS BOARD. 20 Aug., 1969 [20 Aug., 1968], No. 39815/68. Heading G4N. [Also in Division E2] An alarm circuit is incorporated into the control circuit for the inner and outer doors of a strong room and the door of a safe or internal strongroom. The inner and outer doors of the strong room can only be opened one at a time in normal operation, but on operation of a first switch may be opened simultaneously and on operation of a second switch may be opened simultaneously and the alarm system operated. The alarm system is also operated if the wires of either the inner or outer door locking circuits are cut. or if the safe door is forced open when both inner and outer doors are open. As shown, power is supplied through an on/off switch 12 to the safe lock-circuit and through an additional key-controlled switch 13 to the door lock circuit and relays 14, 15 and 34 operate opening contacts 14a, 15a and 34a in the safe lock circuit and 146 and 156 in the door lock circuit and closing contacts 14c, 15c and 34b in the alarm circuit connected to an alarm at 36 and 37. To open both doors simultaneously without sounding the alarm switch 13 must be opened and switch 29 closed but firstly the safe door must be locked, closing switch 30 and energizing relay 32 closing contact 32a and solenoid 31 which releases a catch to enable switches 13 and 29, which are ganged together, to be operated, a first movement of these closing contacts 29 shunting 14c and 15c and thus maintaining the alarm circuit closed, and a second movement opening switch 13, de-energizing relays 14, 15 and 34. To open both doors simultaneously and sound the alarm, switch 12 is opened, relays 14, 15 and 34 being de-energized to open contacts 14c, 15c and 34b and break the alarm circuit. If the wires to either door locking circuit are cut, relay 14 or 15 is de-energized, opening contact 14c or 15c and breaking the alarm circuit. If both inner and outer doors are open, relay 34 is de-energized and contact 34b open and so if the safe door is opened, relay 32 is de-energized, contact 32a opened and the alarm circuit broken. The alarm may also be sounded by means of a press switch 38 in the circuit.
Patent GB-832657-A (GB)
Title: An improved aircraft clutch and power transmission unit
Inventor: PETERSON VICTOR WISEHEART
IPC: F16D25/10
Filed: 1958-02-05
Abstract: 832,657. Friction clutches; clutch-brake combinations. GENERAL MOTORS CORPORATION. Feb. 5, 1958, No. 39816/58. Divided out of 832,655. Drawings to Specification. Class 80 (2). The description is the same as that of Specification 832,655, but the claims are directed to the combination of the clutch with a brake. Specification 832,656 also is referred to.
Patent GB-1284944-A (GB)
Title: Preparation of sodium chloride crystals
Inventor: FEDOSOFF JOSEPH PETER
IPC: C01D3/06
Filed: 1969-08-09
Abstract: 1284944 Sodium chloride crystals; desalinating water; sequestering DOMTAR Ltd 7 Aug 1970 [9 Aug 1969] 39939/69 Headings C1A and C1C Crystals of sodium chloride having a reduced content of calcium sulphate are prepared by introducing a brine solution into an evaporating vessel, introducing into the brine solution a straight chain fatty acid having 12 to 20 carbon atoms, evaporating the brine solution at a temperature below 175‹ F. under partial vacuum in the presence of the fatty acid and thereby precipitating crystals of sodium chloride. The fatty acid, which may be oleic, stearic, palmitic, myristic, margaric or linoleic acid, is preferably added to the brine in an amount of at least 5 p.p.m. based on the brine. The process is also suitable for the production of salt free water.
Patent GB-1271857-A (GB)
Title: Elastomeric sieve bottom
IPC: B07B1/46
Filed: 1969-08-12
Abstract: 1,271,857. Sieve. STAHLGRUBER OTTO GRUBER & CO. 12 Aug., 1969 [22 Aug., 1968], No. 40337/69. Heading B2H. A sieve is made up of sieve sections 2a, 2b formed of elastomeric material such as rubber or plastics and having sieve apertures 5 therethrough, and a reinforcing mesh 6, 7 which is received in grooves 9 provided in the undersurfaces 8 of the sieve sections. Patches 11 may be stuck over the grooves. The sections may be interconnected with cold vulcanising layers 12.
Patent GB-1272804-A (GB)
Title: Seismic prospecting
Inventor: MURRAY FRANK MCDONALD
IPC: F42D3/06
Filed: 1969-08-13
Abstract: 1,272,804. Seismic charges. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 July, 1970 [13 Aug., 1969], No. 40414/69. Heading F3A. [Also in Division H4] In a system for placing explosive charges in position for seismic prospecting, a line of elongated explosive is laid adjacent to and substantially parallel to the generally horizontal land surface or water surface of a prospect area, and fluent explosive material is placed in detonation transmission relation with the line to augment the seismic energy generated when the line is exploded.  For land prospecting the explosives are buried by the plough shown. Detonating cord 19 from drum 20 emerges from the flexible end 17, 18 of a tubular conduit 15, and the fluent explosive 22 passes continuously or intermittently (as controlled by shutter 23 or a metering pump) from hopper 14 down a tubular conduit 13. A single conduit may be used instead of conduits 13 and 15. Cord 19 may comprise PETN in a waterproof sheath. The fluent explosive may be a powder, thickened liquid or slurry (e.g. a granular composition of TNT and ammonium nitrate; or a composition containing, by weight, 1 to 4 parts fuel oil, 99 to 96 parts ammonium nitrate and 0 to 15 parts aluminium; or a slurry of ammonium nitrate, water, a thickening agent for the water, fuel, and a PETN or isopropyl nitrate sensitizer. The conduits are preferably made of copper, brass, aluminium or plastics. Two or more parallel lines of detonating cord together with the associated auxiliary explosive may be placed simultaneously.
Patent GB-1504647-A (GB)
Title: Drying method and apparatus
IPC: F26B17/32
Filed: 1976-09-29
Abstract: 1504647 Drying tobacco TOBACCO RESEARCH & DEVELOPMENT INSTITUTE Ltd 29 Sept 1976 [2 Oct 1975] 40444/76 Heading F4G In a method of drying moist discrete solid material, e.g. cut tobacco, in which the material is fed along a path in contact with a cocurrent flow of hot gas, the material is treated by being artificially moistened or preferably, by being preheated by indirect contact, e.g. by steam tubes, before contacting the hot gas. The material is passed along a rotary cylinder 4, provided interiorly with steam tubes, from an inlet 6 to an outlet 8, and hot air is delivered to the cylinder at 12. A valve 18 on the air input line is controlled by a thermally-responsive device 16 in the air outlet, and delivery of material to the cylinder is controlled by a moisture-responsive device 14.
Patent GB-1388491-A (GB)
Title: Plugs
IPC: B05C21/00
Filed: 1972-08-31
Abstract: 1388491 Aperture sealing plugs ITWATECO GmbH 31 Aug 1972 [4 Sept 1971] 40466/72 Addition to 1354973 Heading F2H A plug 20 for sealing a hole in a panel 30, e.g. a paint exit hole, is of flanged cup form, with a plastics ring 32 which is placed between the plug flange 24 and the panel 30, the ring having a blowing agent 36 on at least one side which is activated by heating to a predetermined temperature, so that the ring 32 may be foamed to create a seal between the plug and the panel. The plug is of metal, with protuberances 28 on its annular side wall 26 to retain the ring 32 and to grip behind the panel when the plug is inserted into a hole. The ring 32 may be coated on one or both sides with an adhesive in addition to the blowing agent.
Patent GB-1398659-A (GB)
Title: Symmetrical objective
IPC: G02B13/24
Filed: 1973-08-28
Abstract: 1398659 Symmetrical copying objective KONISHIROKU PHOTO INDUSTRY CO Ltd 28 Aug 1973 [29 Aug 1972 (2)] 40509/73 Heading G2J An optical (copying) objective comprises front and rear lens groups symmetrically arranged with respect to a central stop, the front group including a meniscus component convex to the front positioned in front of a convergent component having a front surface convex to the front, and a rear group comprising a convergent compound component having a rear surface convex to the rear positioned in front of a meniscus component convex to the rear and complying with the following relationships:- wherein f is the equivalent focal length of the complete objective; l is the overall axial length of the objective between the surfaces r 1  and r 10 ; r 1  is the radius of curvature of the front surface of the front lens group and r 10  the equal radius of curvature of the rear surface of the rear lens group; d 1  is the axial thickness of the meniscus front component of the front lens group or the sum of the axial thicknesses of two or more such components and d9 the equal axial thickness of the meniscus rear component of the rear lens group or the sum of the axial thicknesses of two or more such components; d3 + d4 is the axial thickness of the compound rear components of the front group and d 6  + d 7  the equal axial thickness of the compound front component of the rear lens group. A 6 element equivalent lens is also disclosed with supporting optical data, essentially equivalent to the above.
Patent GB-1452016-A (GB)
Title: Breechblock for an automatic firing weapon
IPC: F41A3/12
Filed: 1974-09-19
Abstract: 1452016 Breechblock WERKZEUGMASCHINENFABRIK OERLIKON-BUHRLE AG 19 Sept 1974 [3 Oot 1973] 40784/74 Heading F3C A breechblock, for an automatic firing weapon, has a breechblock carrier 6 with control grooves 12 therein, a breechblock body 8 rotatably and axially displaceably mounted in the carrier 6, and a control-bolt 11 which is rotatably mounted in a bore 13 of the breechblock body 8 and has its ends 15 received by the grooves 12 in the carrier 6 so that, when the carrier is moved longitudinally, the breechblock body 8 therein is rotated to effect the locking or the unlocking thereof to or from a barrel 1 of the weapon. The barrel is mounted in a housing 2, has a flange 4 with teeth 3 and has a peripheral groove 5. The breechblock body 8 has a flange 9 with teetch 10 which are engageable with the teeth 3 of the barrel 1, and carries a firing pin 16. The ends 15 of the control-bolt 11 are each provided with a rotatable sleeve 17. The latter is stepped at 18 so as to receive a ring 20 which is mounted in a groove formed in the end 15, the ring 20 being retained axially by a rivet-head 21. In operation the firing of a cartridge in the barrel 1 displaces the carrier 6 rearwards and, because the flange 9 of the body 8 is positioned within the groove 5 of the barrel and the teeth 10 and 3 are in alignment, the body 8 remains stationary. Further displacement of the carrier 6 effects rotation of the body 8, via the control-bolt 11 and the grooves 12, thus allowing the flange 9 to escape from the groove 5 in the barrel 1 and effecting the unlocking of the body 8 from the barrel 1.
Patent GB-886168-A (GB)
Title: Improvements in or relating to catalysts and to a process of polymerisation using animproved catalyst
IPC: C08F10/00
Filed: 1959-12-02
Abstract: Olefins, such as C2-4 (or higher) mono-olefins or polyenes, are polymerized at elevated temperature and pressure in presence of a catalyst introduced as a mixture comprising Al, Mg, Hg and AlX3 or AlRX2 wherein X is halogen and R is alkyl.  In place of Hg there may be used a Hg compound which liberates the metal in presence of the other catalyst components, e.g. mercuric acetate, chloride, bromide, iodide, nitrate, sulphate, cyanide or chromate.  In examples, ethylene with an Al/Mg/Hg/AlBr3 catalyst gave fractions boiling from below 60 DEG  C. up to 300 DEG C. and a residue; using an Al/Mg/HgCl2/AlBr3 catalyst, ethylene gave liquid reaction products containing specifically hexene-1.ALSO:Olefins, such as C2-4 (or higher) mono-olefins or polyenes, are polymerised at elevated temperature and pressure in presence of a catalyst introduced as a mixture comprising Al, Mg, Hg and AlX3 or AlRX2 wherein X is halogen and R is alkyl.  In place of Hg there may be used a Hg compound which liberates the metal in presence of the other catalyst components, e.g. mercuric acetate, chloride, bromide, iodide, nitrate, sulphate, cyanide or chromate.  In examples, ethylene with an Al/Mg/Hg/AlBr3 catalyst gave fractions boiling from below 60 DEG C. up to 300 DEG C. and a residue; using an Al/Mg/HgCl2/AlBr3 catalyst, ethylene gave liquid reaction products containing specifically hexene-1.
Patent GB-1425453-A (GB)
Title: Control and mixing of video signals
IPC: H04N5/275
Filed: 1972-09-04
Abstract: 1425453 Television PYE Ltd 30 Aug 1973 [4 Sept 1972] 40963/72 Heading H4F Apparatus for the control and mixing of video signals comprises a plurality of combined fading and keying circuits connected to respective isolated video signal sources together with control signal generating apparatus controlling the fading and keying circuits such that the gains of the latter (1) remains constant; (2) slowly change between predetermined levels or; (3) switch between predetermined levels, the outputs of each of the circuits being connected to a common output point. As shown, (Fig. 1) individual ones of a plurality of video signal inputs V1, V2-Vn are connected via respective isolating amplifiers 1, 2-10 and respective delay devices 11, 12-20 to respective facing and keying circuits 31, 32- 40 and to respective ones of a duplicate set of fading and keying circuits 51, 52-60. Each fading and keying circuit is controlled via respective driver circuits 21, 22-30 and 41, 42- 50 by means of signals generated in a control unit 265 to produce the various fading and keying operations indicated above. Outputs of opposite phases are produced on conductor pairs 261, 262 and on conductor pairs 263, 264 supplying respective output amplifiers 266, 267. Control unit 265 includes circuits to derive a keying waveform from selected video inputs either from the luminance component or from the colour signal through a chromic keyer and the unit may also include filter circuits to "slow" the edges of the keying waveforms to produce soft-edge effects on the display. Details of a fading and keying circuit are given with reference to Fig. 2 (not shown).
Patent GB-1421805-A (GB)
Title: Method of forming a positive resist
IPC: G03F7/039
Filed: 1973-08-31
Abstract: 1421805 Olefin-sulphur dioxide polymers INTERNATIONAL BUSINESS MACHINES CORP 31 Aug 1973 [13 Nov 1972] 41106/73 Heading C3P [Also in Division G2] Olefine-sulphone polymers containing the unit-[CR 1 H-CR 2 H] n -SO 2  wherein n is 1 or 2, R 1  and R 2  are H, alkyl, substituted alkyl or aryl or together form an alicyclic ring are prepared by heating the olefine and sulphur dioxide in the presence of azobisisobutyronitrile catalyst. Specified olefines are cis-but-2-ene, but-1- ene, pent-1-ene, cyclopentene, hex-1-ene, 4- bromo-but-1-ene and styrene. The polymers are used in electron-sensitive processes (see Division G2).
Patent GB-1397294-A (GB)
Title: Pumped storage water power station
IPC: F03B3/10
Filed: 1972-09-05
Abstract: 1397294 Hydraulic turbines and pumps ESCHER WYSS Ltd 5 Sept 1972 41187/72 Heading FIT Fig. 3 shows a pump-turbine operating as a three-stage centrifugal pump, an annular stator member 12 being displaced axially within an annular space into the position shown by means of hydraulic pressure applied via openings 15. Guide pins 16 on the member 12 engage helical slots 17. Fig.4 shows the machine operating as a two-stage inward-flow turbine, the stator member 12 being in the alternative position shown in which the second stage discharges into a pipe 14, and the rotor 3 being disengaged from the shaft 4 by lifting a toothed driving ring 7 out of engagement with teeth 18 on the rotor. The ring 7 is moved by mechanical means or hydraulic means having supply pipes extending through the shaft 4. In another embodiment, the second stage is put out of operation during turbine operation, two annular stator members 12 used for this purpose being moved hydraulically or mechaniically.