baber/WOPTO huggingface dataset:
Patent GB-1052897-A (GB)
IPC: H01H3/32
Abstract: 1,052,897. Gas-blast circuit breakers; electrically released switches. ALLMANNA SVENSKA ELEKTRISKA A.B. April 9, 1964 [April 11, 1963], No. 14640/64. Heading H2B. A switch, e.g. a multi-break gas-blast circuitbreaker, is provided with a common impulse giving means 5 which transmits impulses to two or more impulse receiving means 22 . . . 25 through individual rods or tubes to initiate operating or tripping actions. In the arrangement shown, steel rods 6 . . . 9 extend between the means 5 and segments 10 . . . 13 pivoted at 10<SP>1</SP>... 13<SP>1</SP> and insulating rods 14. . . 17 extend between the segments and the means 22 ... 25. The means 5 comprises a resilient tubular body 26 against which the ends of the steel rods abut. A blow is imparted to the body 26 by a spring-biased hammer 27 which is released from a permanent magnet 29 on the energizing of a coil 30. The hammer 27 in addition to striking the body 26 to provide an impulse, also operates a valve 34 to admit compressed air to a cylinder 32 to reset the hammer against the bias of a spring 28.
Patent GB-1053006-A (GB)
IPC: B29C45/06
Abstract: 1,053,006. Injection moulding machines. ELETRONICS Inc. June 9, 1965, No. 24420/65. Heading B5A. An injection moulding machine comprises a number of moulds 22, 24 (Fig. 2, not shown) mounted on a rotary table 20, an injection cylinder 89 (Fig. 7, not shown) movable along a circular arc and longitudinally to effect injection into each mould in turn, and means for synchronizing the movements of the table 20 and injection cylinder 89. The injection cylinder 89 is mounted on a pair of arcuate rails 45 (Fig. 2) pivoted at 44 and movable towards and away from the table 20 by means of a cylinder 51 operating through pivoted linkage 52, 54, 55. The injection cylinder is moved along the rails 45 by the mould to which it is coupled by engagement of its nozzle 49 with the mould inlet 38 (Fig. 7). Return movement of the injection cylinder is effected by a pneumatic cylinder 57. The lower mould members 24 are mounted on vertically slidable shafts 25 (Fig. 2) each connected to a bell crank linkage 28, a rod 26 and a heavy spring. Each mould is closed in turn when a cam follower 29 engages a cam 35 and is reopened by a lowering cam 36 (Fig. 12, not shown). Operation of the machine is controlled by a series of microswitches 71 ... 77 and solenoid operated valves in control circuits, Figs. 13, 14 (not shown). Recharging of the injection cylinder 89 is effected by a feed drawer 87.(Fig. 8, not shown) when the injection plunger advances sufficiently for a microswitch 76 to be closed.
Patent GB-1084125-A (GB)
IPC: B08B9/055
Abstract: 1,084,125. Cleaning tubes. M. M. KNAPP and H. J. GIRARD. June 22, 1965, No. 26436/65. Heading F2N. A plug 10 for cleaning pipes or separating fluids in pipes comprises a cylindrical resilient body 1, e.g. polyurethane, and a helical band of abrasive material 2 on the cylindrical surface of the body, said body being compressed by the fluid pressure differential driving the plug through the pipe and thereby increasing the pressure of the band against the pipe wall. The abrasive material, such as sand, glass, diamond dust, silicon carbide, short bristles, and/or fine rouge, may be disposed in the surface of the body or secured upon the surface by a binding material 3 such as an epoxy. Impermeable membranes 5 and 7 are secured to the trailing and leading plug ends respectively. Frictional engagement between the pipe wall and the helical band causes a rifling action which, together with plug-driving, pressure differential expands the non-abrasive body portions against the pipe wall, as illustrated at 11 in Fig. 2 (not shown), said portions performing a pipe-wiping action.
Patent GB-1225620-A (GB)
IPC: C08J9/02
Filed: 1967-12-12
Abstract: 1,225,620. Polyamide foams. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 Dec., 1968 [12 Dec., 1967], No. 56499/67. Headings C3C and C3R. Polyamide foams are made by heating a polyamide above its m.p. with a finely divided metal (other than an alkali metal, Ca, Ba or Sr) which can react with the polyamide thereby causing gas evolution which causes foaming. The polyamide may be polyhexamethylene adipamide polycaprolactam, polydodecanolactam, polyhexamethylene sebacamide or polymetaxylylene adipamide. The metal may be Zn, Mg, Co, Ni, Sn, Fe, Mn or Pb. The metal may be supported on an inert material e.g. kieselguhr, carbon or silica, which may be left in the foam as a filler or pigment. A surfactant, e.g. cetyl alcohol and polyalkylene oxide condensates with C 12  or more alcohols or phenols, may be added to the polyamide.
Patent GB-1226256-A (GB)
IPC: C05B13/06
Filed: 1969-05-15
Abstract: 1,226,256. Ammonium - potassium polyphosphates. MONSANTO CO. 15 May, 1969 [15 May, 1968], No. 24909/69. Heading C1A. The invention comprises ammonium-potassium polyphosphate compositions having the overall formula  where x+y=n+2, n is an integer having an average value greater than 10, x : y is from 1 : 100 to 100 : 1, preferably 1 : 10 to 10 : 1. The polyphosphates may also contain 0À1% to 10% by weight of a metal selected from Fe, Cu, Mn, or Zn. The polyphosphates are made by condensing at 100‹ to 350‹ C., a phosphate containing compound, a potassium containing compound, an ammoniating agent and a condensing agent; the ammoniating and condensing agents may be the same compound. Phosphate containing compounds specified are orthophosphoric acid, condensed phosphoric acid, pyrophosphoric acid, tripoly and higher polyphosphoric acids, condensed phosphoric acids being preferred; the phosphate may also be derived from the potassium and ammonium containing compounds. Potassium containing compounds specified are, KCI, K 2 CO 3 , K 2 SO 4 , potassium acid phosphates, potassium acetate and potassium formate. Ammoniating and condensing agents specified are urea, ammonium carbamate, biuret, sulfamide,- sulfamic acid, ammonium sulfamate, guanyl urea, methyl urea, amino urea, 1-3 diamino urea, and biurea. The other metals, Fe, Cu, Mn, Zn may be in the form of their salts of acids such as phosphoric, hydrochloric, sulphuric, acetic, formic and propionic or Fe(OH) 3 , Fe 2 O 3 , ZnO, MnO, Zn(OH) 2  and CuO.
Patent GB-1227113-A (GB)
IPC: G01R31/26
Filed: 1969-02-03
Abstract: 1,227,113. Determining current/voltage characteristics of semi-conductor devices. NIPPON ELECTRIC CO. Ltd. Feb.3, 1969 [Feb. 17, 1968], No. 5776/69. Heading G1U. In an apparatus for displaying the current/ voltage characteristic of a device 4, such as a semi-conductor IMPATT diode having large power dissipation per unit volume, a pulse train A which is amplitude modulated at a frequency much lower than the pulse frequency, is applied to the device by a generater 1. The input voltage waveform B to the device, as developed across an input resistor 5 forming part of the apparatus, is applied to the horizontal deflection system of an oscilloscope 3, while a waveform C representing the current through the device, as detected e.g. by measuring the voltage across a resistor 6, or by using a Hall effect pick-off device, is applied to the vertical deflection system. Narrow pulses E in synchronism with those in the train A and located in time at about the mid sections of the pulses in the train are generated at 2 and applied to the oscilloscope brightness control. Thus the position of the oscilloscope beam for each corresponding pair of pulses in the voltage and current waveforms B and C is indicated as a point on the tube face by a momentary brightening, and this brightening does not occur until the transient conditions at the beginning of the pulses have settled down. A series of dots giving the required characteristic appears on the oscilloscope face as the amplitude of the pulses in the test waveform A increases. It is preferred that the modulation frequency of the waveform should not be a submultiple of the pulse frequency. This ensures that the dots on the oscilloscope face for successive scanning cycles are not in the same positions, so that an apparently continuous waveform will be formed. The system avoids excessive temperature rise in the device under test, while undesirable transient phenomenon appearing at pulse edges do not disturb the observed characteristic waveform.
Patent GB-1227187-A (GB)
IPC: G01S17/95
Filed: 1968-10-01
Abstract: 1,227,187. Visibility meters. F. FRUNGEL. Oct.1 1968 [Nov.3, 1967], No.46473/68. Heading G1A. A visibility meter comprises an ultraviolet transmitter in the form of an A.C. supplied mercury vapour discharge lamp and an ultraviolet responsive gas-filled photo-cell having cadmium electrodes. Normally, ultraviolet light from the transmitter is not incident on the photo-cell but, in the presence of fog, ultraviolet light is scattered towards the photo-cell which is caused to conduct and cause triggering of an indicating device. In one arrangement, Fig.1, the photo-cell 3 is shielded from the lamp 2 by a wall 10, attached to rain cover 1, which cuts out rays diverging less than 10‹ from the optical axis. On receipt of scattered light above a certain level, a relay 8 is actuated to light a fog indicator lamp 15. A measure of the visibility may be given by meter 14 measuring the position of a variable diaphragm 13, which may alternatively be adjacent the photocell 3 and which forms part of a retro-active measurement system with servomotor SM. The meter 14 may have a scale divided into just two or three visibility sizes. A plurality of photo-cells of different alarm thresholds may be provided. In a second arrangement, Fig.2 (not shown), the transmitting lamp and photo-cell are side-by-side in a radar-like configuration.
Patent GB-1228512-A (GB)
IPC: C07C275/10
Filed: 1969-03-20
Abstract: 1,228,512. Purification process. B. JOOS. 20 March, 1969 [29 March, 1968], No. 14707/69. Heading C2C. A solution or dispersion containing formaldehyde as impurity is freed therefrom by treating it with (a) a simple hydride of a metal of main Groups I-III of the Periodic Table; (b) a complex boron or aluminium hydride; or (c) hydrazine or a mono alkyl or aryl hydrazine. An amino acid such as glycocoll or p-aminobenzoic acid may be added to the mixture. The purification of dimethylol urea, dimethylol thiourea and dimethylol ethylenethiourea is described.
Patent GB-1228748-A (GB)
IPC: H02K23/18
Filed: 1967-10-04
Abstract: 1,228,748. Welding generators; welding systems. BULPITT & SONS Ltd. 1 Oct., 1968 [4 Oct., 1967], No. 45092/67. Headings H2A and H2H. In an electric arc welding apparatus comprising a D.C. generator 10 having compound wound excitation with interpoles 16 and brushgear which is angularly movable within a range e.g. 13 degrees to any position from a geometric neutral axis, main poles 39 each have a trailing tip 41 extending further from the core axis in the direction of armature rotation than does the leading tip 40 extend in the opposite direction. The extent is such as to saturate in order to limit the maximum short-circuit current of the generator. The generator armature 10a is connected to electrode terminals 13, 14 via shunt and series field windings 11, 12, interpole windings 17, a stabilizing choke 15, shunt field regulating resistors 18, 19, and a shunt field current limiting resistance 20. In the embodiment shown an I.C. engine or an electric motor drives both the generator 10 and an auxiliary generator 21 which supplies the shunt field winding 11 via a polarity reversing switch 26 having auxiliary contacts 28, 30 to render effective the resistance 20 during operation of the switch. The output polarity is indicated visually by either a centre-zero voltmeter or neon lamps 36, 37 operated by relay 31 whose coil is polarized by a blocking diode 32.
Patent GB-1230075-A (GB)
IPC: B65D5/10
Filed: 1967-06-07
Abstract: 1,230,075. Cartons. CYNAT PRODUCTS Ltd. 30 May, 1968 [7 June, 1967], No. 26379/67. Heading B8P. A carton of rectangular cross-section is erected from the blank shown which includes a closure panel 25 which has a tongue 25 engageable with a slot 27 in the opposite side panel. Flaps 28, 32 provide side closures and have interengaging tongues 31 and slots 29, and flaps 33, 34 lie inside the erected carton. The panels may be defined by printing.
Patent GB-1230320-A (GB)
IPC: C07C51/27
Filed: 1969-12-01
Abstract: 1,230,320. 2,2 - Dialkyl glutaric acid. DYNAMIT NOBEL A.G. 1 Dec., 1969 [2 Dec., 1968], No. 58638/69. Heading C2C. A 2,2 - dialkyl glutaric acid is prepared by oxidizing a 2,2 - dialkyl - 4 - cyanobutyraldehyde with nitric acid in the presence of oxygen but in the absence of sulphuric acid. A catalyst such as metallic copper and ammonium vanadate may be present and the oxygen may be present as air. Examples describe the preparation of 2,2 - dimethyl, and 2 - ethyl - 2 - butyl-4- cyanobutyraldehydes.
Patent GB-1230485-A (GB)
IPC: A61C3/08
Filed: 1968-08-05
Abstract: 1,230,485. Percussive tools. I. A. ELLMAN. 5 Aug., 1968 [28 Aug., 1967], No. 37232/68. Heading B4C. [Also in Division A5] A reciprocable packing tool comprises a shank 1 with a working end 2 for compacting material when reciprocated in contact therweith and a bevelled driving end 3 for engagement by a cam provided by a rotating drive sleeve 17 of a handpiece 12. An arm 7 fixed to said shank and positioned to abut the exterior of the handpiece when the tool is inserted therein, prevents rotation of the tool in the handpiece and prevents the tool from falling out of the handpiece. The rotatable drive sleeve 17 of the handpiece has at its upper end a partition 18 with an opening 19. As the partition 18 rotates with the drive sleeve it cams the drive end of the shank in and out of the opening to reciprocate the shank.
Patent GB-1230876-A (GB)
IPC: B41J5/38
Filed: 1970-07-13
Abstract: 1,230,876. Electric selective signalling. OLYMPIA BUROSYSTEME G.m.b.H. 13 July, 1970, No. 33596/68. Heading G4H. A printer is controlled by code signals received via a circuit which converts signals received in either of two coding systems to a system suitable for controlling the printer. As described, the printer 25 has upper and lower case symbols, the upper case being selected by " shift on " signals and reverting to lower case in the absence of such signals, " shift off " signals not being required. If data read from a tape 21 is in a first coding system having no " shift off " signals the data passes via decoder 22, line 32, and store 24 to printer 25. On the other hand if the data on the tape is in a second coding system having both " shift on " and " shift off " signals, decoder 22 passes the information signals via line 33 to store 24, and passes the shift signals to unit 23 which suppresses " shift off" signals and delivers only " shift on " signals to store 24. If the printer responds both to " shift on " and " shift off" signals, the circuit is switched to pass all signals in the second code system via line 33.
Patent GB-1233114-A (GB)
IPC: H04N5/783
Filed: 1969-08-29
Abstract: 1,233,114. Automatic control of speed. SANYO ELECTRIC CO. Ltd. Aug.29, 1969 [Sept. 14, 1968], No.43127/69. Heading G3R. In a helical scan video tape machine in which the speed of rotation of the heads is controlled, in the replay mode, by phase comparison of head speed pulses with pulses reproduced from a control track recorded on the tape, provision is made for slow motion reproduction by scanning (at normal head speed) each track n times while transporting the tape at 1/n of its normal speed, it being arranged that the control track signals be reproduced from signals which were recorded at n times the normal frequency. The head speed is regulated by an eddy current brake 9. During recording this is energized according to the phase difference between once-per-revolution pulses produced in a pick-up 4 by a magnet 11 on a disc 12 with the vertical synchronizing pulses separated at 15 from an incoming television signal. As shown the vertical synchronizing pulses are also recorded longitudinally on the tape by a head 49 and a separate track of pulses at n times this frequency is recorded by a second head 35 from pulses in a pick-up 26 associated with n magnets 20-25 on the under side of the disc 12. In an alternative arrangement Fig. 4 (not shown), one of the magnets (23) is more powerful than the others and a single control track is made, every nth pulse being of greater magnitude, and this, only, is selected by a Schmitt trigger circuit for normal speed reproduction. For replay as shown the pulses from 4 are compared with those from head 49 (switched to a replay mode) for normal speed or from 35 for slow motion. The apparatus may also operate in a "stop-motion" mode in which the reference pulses are derived by frequency division at 44, 45 of the output of an oscillator 43. In either of the replay modes the reference pulses may be adjustably delayed by a multivibrator to provide manual adjustment of the relationship of the heads with the recorded signal tracks. Transistor circuits for the pulse signals are described Fig. 3, (not shown).
Patent GB-1234451-A (GB)
IPC: C22B13/00
Filed: 1968-06-12
Abstract: 1,234,451. Extracting metals. IMPERIAL SMELTING CORP (N. S. C. ) Ltd. May 28, 1969 [June 12, 1968], No.27888/68. Heading C7D. In a method of operating a zinc-lead blast furnace into which are charged carbonaceous fuel and a sinter containing zinc oxide and lead oxide, pre-heated oxygen-containing gas being blown in through tuyeres near the bottom of the furnace, while below these tuyeres molten lead and slag are run off, the zinc oxide in the charge being reduced to zinc vapour which is taken off and condensed, the ratio of zinc to carbon in the charge and the pre-heat temperature of the blast are adjusted in accordance with the continually monitored values of (1) the said zinc/carbon ratio (2) the said pre-heat temperature (3) the ratio of slag-forming materials to carbon in the charge (4) the composition of the product gases from the furnace (5) the zinc content of the slag (6) the temperature of the molten slag leaving the furnace, so as to maximize the zinc elimination according to the relationship: - in which R z  = zinc elimination V = a constant S z  = weight of slag-forming material in charge/ weight of zinc in charge F = 1/D = 1/zinc-carbon ratio in charge K<SP>1</SP> = a constant p+1 = moles of carbon burnt per atom of oxygen in the blast T p  = pre-heat temperature of blast b 0  to b 5 # = polynomial co-efficients a 0  to a 5 #
Patent GB-1252362-A (GB)
IPC: H01L27/07
Filed: 1969-03-11
Abstract: 1,252,362. Transistor circuits. MARCONI CO. Ltd. 19 Nov., 1969 [11 March, 1969], No. 12712/69. Heading H3T. A M.O.S. transistor M1 and a bipolar transistor T1 are formed on the same silicon chip and the gate and emitter electrodes are together connected to an input terminal, and the collector and drain electrodes are connected to a common resistive load M2 or to separate resistive loads (M21, M22, Fig. 3, not shown), the output being taken from the drain or collector or both. The bipolar transistor T is formed as a four terminal M.O.S.T. in which the substrate electrode is used as the base and the gate electrode is ignored. If separate resistive loads (M21, M22) are used the separate outputs (O/P1, O/P2) are respectively at earth in response to a negative and a positive input signal, so that the circuit can discriminate between positive and negative inputs. The circuit is used as an interface between bipolar and M.O.S.T. circuitry, the output driving M.O.S.T. circuitry and the M.O.S.T. M1 responding to an input from other M.O.S.T. circuitry and the bipolar T1 responding to an input from bipolar circuitry, the polarities of the input signals being usually opposite to select the appropriate transistor M1 or T1.
Patent GB-1253170-A (GB)
IPC: G11C13/04
Filed: 1970-09-25
Abstract: 1,253,170. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORP. 25 Sept., 1970 [3 Oct., 1969], No. 45755/70. Heading G4A. [Also in Division G2] A holographic data storage system comprises a holoarray including a plurality of holograms, each representing a respective block of data, a readout device extending in a plane parallel to and spaced from the holoarray, and an optical system adapted to provide a plurality of readout beams, each for reading out a respective one of the holograms, and all the readout beams being directed to the holoarray in such a way that on emergence from the holoarray the zero order emergent beams all converge to a point spaced from the readout device while the first order emergent beams are received by the readout device. The point is a distance from the readout device equal to its width so that the cross-correlation images around the zero order do not impinge on the readout device. The readout beams come from an array of GaAs laser diodes, the holoarray is on a photographic plate, and the readout device is an array of photo-diodes. In recording the holograms, a scan laser is used with both the reference and data beams having unique orientations for each different hologram.
Patent GB-1265953-A (GB)
IPC: E04B1/66
Filed: 1968-02-23
Abstract: 1,265,953. Coated products. W. R. GRACE & CO. 21 Feb., 1969 [23 Feb., 1968], No. 47390/71. Divided out of 1,265,952. Addition to 1,230,754. Heading B2E. [Also in Divisions B5 and El] A structure in the, form of a roll comprises a membrane of a waterproofing pressure-sensitive bituminous-rubber adhesive adhered to a sheet-like support of polyethylene or polypropylene, one face of the support being substantially more readily physically separable from the membrane than the other face, the membrane being at least 0.025cm (and usually not more than 0.6cm) thick and the support being at least 15cm wide. The differential separability of the two faces of the support may be obtained by formation of a silicone release coating on one face, usually the face that faces away from the centre of the roll, either before, during or after lamination with the membrane, such as by application to the membrane prior to rolling up of a dispersion of a curable silicone compound. The polyolefine support may be in the form of a film or woven or non-woven fabric or may be cellular. The rubber in the adhesive composition may be virgin or reclaimed natural or synthetic, the ratio by weight of bitumen to rubber usually being from 80:20 to 95:5. The support, especially when it comprises a woven fabric of polypropylene fibres, may have on its other surface a waterproof layer of a bitumen adhesive which is not pressure-sensitive when cold but becomes tacky at elevated temperatures. The structures, when unrolled, may be used to seal surfaces such as concrete, particularly in road-building, and a number of them may be overlapped to provide a continuous waterproof seal.