baber/WOPTO huggingface dataset:
Patent GB-1175110-A (GB)
Title: Theatre Lighting Control
Inventor: BOGNER ROBERT EUGENE
IPC: G05B19/07
Filed: 1967-09-15
Abstract: 1,175,110. Control systems for stage lighting. NATIONAL RESEARCH DEVELOPMENT CORP. 11 Sept., 1968 [15 Sept., 1967], No. 42115/67. Heading H2H. In a theatre or studio lighting control system allowing fading to be carried out automatically at a preset rate when changing from one lighting plot to another, the control voltage Vc controlling the brightness of a lamp or group of lamps 51 is provided by the addition of output voltages from two sources, the voltage from one source increasing while the voltage from the other source is decreasing when the control voltage is changed from one magnitude to another, and means are provided for selecting the rate of increase and decrease of the voltages from the sources. The control voltage is obtained by adding proportions, selected by brightness controls 10 and 11, of two voltages from a Miller integration circuit which includes an amplifier 18 and a feedback capacitor 19. Amplifier 18 includes transistors T 1  T 2  forming an input stage, a differential-amplifier stage formed by transistors T 3 , T 4  which gives two output signals, one inverted with respect to the other, and two output stages, one for each output of the differential-amplifier stage, provided by transistors T 7 , T 8 . The voltage to be integrated is applied to amplifier 18 through a selected one of resistors R 1- R 7 , giving a suitable rate of fade. Switch 14, 14<SP>1</SP> is operated to bring the newly selected one of resistors R 1 -R 7  into circuit, from switch 21 or 22, and connects the Ov or + 5v reference supply to the emitter of transistor T 5 , turning it off or on. The voltage at point 24 falls to - 5v or rises to its maximum of + 5v respectively and the voltages at the emitters of transistors T 7 , T 8  change at a controlled rate. One position of a switch 22<SP>1</SP> gives manual fade control via potentiometer 15<SP>1</SP>. A comparator 28 causes a blocking oscillator 29 to provide bursts of oscillations triggering semi-conductor controlled rectifiers 50 at a point in each cycle of an A.C. supply depending on the voltage. The voltage applied to comparator 28 is the sum of the control voltage Vc, a sawtooth voltage from a waveform generator 30, Fig. 3 (not shown), and a negative supply voltage applied from a terminal 31 via a variable resistor R 10 . The output circuit of the blocking oscillator includes a transformer (not shown) whose secondary applies bursts of pulses to a TRIAC. The rate of change of sawtooth waveform is reduced at the beginning and end of each " sawtooth " to compensate for non-linearity in the relation between the firing angle of rectifier(s) 50 and the r.m.s. voltage of the TRIAC and hence the lamp intensity. Three lighting plots may be set in advance, Fig. 4 (not shown).
Patent GB-932955-A (GB)
Title: Process and device for aiding heat exchange between a surface and a gas
Inventor: BOCHIROL LOUIS
IPC: H01J37/32
Filed: 1959-12-11
Abstract: 932,955. Reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 11, 1959 [Dec. 11, 1958], No. 42220/59. Class 39 (4). [Also in Group XIII] Heat transfer between an ionized gas and a surface is improved by creating a periodic electric field particularly in the vicinity of the surface to set in motion ions of the gas near the surface, a dielectric barrier being provided between the electrodes used for creating the field to reduce the risk of an arc discharge being struck. The barrier may consist of any suitable insulating material. The invention is said to be applicable to all gases and in particular to air, nitrogen, oxygen, rare gases, carbon dioxide and hydrogen and under conditions of turbulent or laminar flow or natural convection. In one application (Fig. 4) to a nuclear reactor, a potential difference is set up between the metal sheath 7 of a nuclear fuel element 8 and the moderator 9 or a metal wall 10 of a duct containing the element, the dielectric barrier 11 being placed between the electrodes to prevent an arc discharge. In a further application (Fig. 5) to a nuclear reactor the metal sheath 7 of the fuel element 8 and the moderator 9 are both earthed and auxiliary conductors 12 each surrounded by a dielectric barrier 13 are introduced in the vicinity of element 8 so as to produce on the surface of said fuel element, the alternating or modulated field required.
Patent GB-1005925-A (GB)
Title: Improvements in or relating to hermetically sealed motor-compressors
IPC: F04B39/12
Filed: 1961-11-27
Abstract: 1,005,925. Reciprocating compressors. M. CLAUSEN, [trading as FIRMA DANFOSS VED. ING M. CLAUSEN]. Nov. 27, 1961 [Nov. 26, 1960], No. 42389/61. Heading FIN. A hermetically sealed reciprocating pistontype motor-compressor unit has inlet silencing means formed integrally with and circumferentially surrounding the compressor cylinder, and outlet silencing means forming part of a compressed fluid delivery line and spaced from the compressor cylinder. As shown, the motor 3 drives a centrifugal oil pump 7 and a refrigerant compressor whose cylinder 10 has a delivery pipe leading to a silencer 16. The cylinder also has side extensions 12, 13 containing inlet silencing chambers. Alternatively (Fig. 2, not shown) these silencing chambers partially encircle the cylinder. To reduce the heat transfer to the gas in the capsule 2, the pressure pipe 17 from the silencer 16 may be lagged, and the silencer 16 may also be insulated, for example by a spaced foil cover, as described in Specification 1,005,924, or may be outside the capsule.
Patent GB-958924-A (GB)
Title: Alkylated dihydroxy-diaminoanthraquinones and process for their manufacture
IPC: C09B1/515
Filed: 1962-11-09
Abstract: The invention comprises dyes of the formula <FORM:0958924/C3/1> in which one X is hydroxyl and the other is amino, one Y is alkyl which may be substituted and the other is hydrogen.  Substituted alkyl groups mentioned are benzyl and furfuryl groups.  The dyes are made (a) by alkylating a compound of the formula <FORM:0958924/C3/2> wherein X has the values above and Y is an alkyl group which may be substituted, or (b) by condensing the leuco compound of a compound of the formula <FORM:0958924/C3/3> wherein X has the values above and Z is hydrogen or a sulphonic acid group, with an aldehyde in the presence of a hydrosulphide. Examples are given.  The dyes dye aromatic polyester fibres in blue shades from aqueous dispersion.
Patent GB-1164625-A (GB)
Title: Improvements in and relating to Luminous Signs
Inventor: RUDGE JOHN CHAPMAN
IPC: G09F13/34
Filed: 1966-09-23
Abstract: 1,164,625. Signs. J. C. RUDGE. 23 Sept., 1966, No. 42656/66. Heading G5C. A display sign comprises a single stationary light source 8 and a stationary mask 9 which has some opaque portions and some light-transmitting portions so arranged that an observer moving in direction X sees the light source through only one light transmitting portion at any one instant of time and thus sees the succession of illuminated images on his retinae of which each forms a part of a legend in such a way that the resulting " after images " on his retinae are spread out by the movement to form the complete legend by the phenomenon known as " persistence of vision." The light transmitting portions may be transparent. The light source may be positioned above or below the mask in which case a mirror is provided behind the mask to reflect the light through the mask.
Patent GB-1315388-A (GB)
Title: Magnetic threshold weather excluding assembly
IPC: E06B1/70
Filed: 1970-09-07
Abstract: 1315388 Magnetically operated threshold seals EVER-ROLL MFG CORP 7 Sept 1970 [20 Oct 1969] 42816/70 Heading E1J A magnetically operated weather excluding assembly for the bottom of a door comprises (a) a threshold plate 32 mounted on the door sill 30 and (b) a sealing element 20 e.g. of P.V.C. mounted on the bottom of the door and adapted to be biased towards the door by pleated resilient P.V.C. members 25 interconnecting the bottom of the door and the sealing element which contains a magnet receiving pocket containing a flexible elongate magnet 23. A strip 24 of ferrous material (mild steel) may also be included in the pocket to enhance the pulling power of the magnet and a ferrous strip 37 may be included in the threshold plate 32, to enable the magnetic attraction to overcome the resilience of members 25 when the door is closed. In an alternative construction the magnet is disposed under the plate 32 and the members 25 carry the sealing element 20 which encloses a ferrous plate.
Patent GB-985689-A (GB)
Title: Improvements in or relating to high voltage d.c. supply circuits
IPC: H02M7/06
Filed: 1962-11-13
Abstract: 985,689. Voltage stabilizers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 13,1962 [Nov. 16,1961],No. 42901/62. Heading G3X. [Also in Division H2] A rectifying circuit providing a high voltage stabilised supply comprises a transformer 1 whose primary winding 2 is fed through a barretter 12 and whose secondary winding, which provides the high voltage output at 10 through a rectifier 6, is tapped,the tapping being connected through a second rectifier 5 to a reference voltage source 9. During the positive half cycle the potential of the tapping point rises until it reaches the reference voltage value. It is held to this value by the diode 5 until the supply voltages falls at the end of the half cycle. Due to the barretter the primary voltage follows the same form as does the full secondary voltage applied to a capacitor 8, and a stabilized output voltage is obtained at terminal 10. A modification is disclosed, (Fig. 2 not shown), in which, by duplication of elements, both a high positive and a high negative voltage are obtained from a single transformer.
Patent GB-1494617-A (GB)
Title: Building constructions
IPC: E04B1/348
Filed: 1974-12-13
Abstract: 1494617 Prefabricated buildings PORTAKABIN Ltd 13 Dec 1974 [13 Sept 1973] 43021/73 Heading E1A In a prefabricated building constructed from room units 10, 20 arranged in superimposed relationship the floor 14 of the upper unit 10 is provided in its floor with an opening surrounded by a downwardly-directed extension 18 and the lower unit 20 is provided in its roof with a corresponding opening surrounded by an extension 28; the extensions 18, 28 being telescopically aligned to receive a prefabricated staircase 30 which during transport of the units is carried in the lower unit 20. For additional constructional details Specification 1493801 should be referred to.
Patent GB-1089221-A (GB)
Title: Silencer for gaseous currents
IPC: F01N1/02
Filed: 1964-10-22
Abstract: 1,089,221. Exhaust silencers. WALKER MANUFACTURING CO. Oct. 22, 1964 [Oct. 24, 1963], No.43118/64. Heading F1B. A silencer comprises a gaseous flow tube 7 surrounded by an elongated shell 3 which contacts the tube at opposite sides 17 to form two resonance chambers 9 connected to the tube through perforations 13. The tube 7 may be offset so that one chamber 9 is bigger than the other. One of the chambers is preferably split up into a series of smaller resonance chambers 19 by pinching in the outer shell at 21. The shell 3 may be formed double-walled by wrapping a sheet upon itself; alternatively the two walls may be formed of separate tubes, the inner being of stainless steel and the outer of aluminized steel. In a modification, Fig. 5 (not shown) the outer shell is of greater height than the tube and is dished inwardly at (111), (113), to grip the tube and thereby form the resonance chambers (103), (105).
Patent GB-1097549-A (GB)
Title: Percussion bit and chuck assembly and a percussion bit for incorporation in such an assembly
IPC: B28D1/14
Filed: 1965-10-12
Abstract: 1,097,549. Percussive drills. A. FISCHER. Oct. 12, 1965 [Oct. 14, 1964] No. 43271/65. Heading B4C. [Also in Division F2] A percussion drill bit assembly comprises a drill bit 1 having cutting teeth 2a, 3a at both ends and a chuck 5 in which the bit can be held by either end during a percussion boring operation, the teeth on the held end being prevented from damage during this operation. The drill bit is formed from a tube having grooves 4 which prevent jamming of the bit during drilling, the tube may be rolled from flat sheet steel. In order that the drill bit may also be used as a threaded plug, internal threads 15 are formed and a groove 11 cut into the bit so that when the bit is driven into a hole and expanded by a tapered plug 13, Fig. 6 (not shown), the protruding portion of the bit may then be broken off. The chuck 5 is provided with a hardened insert 6 formed with teeth corresponding to those on the bit or it may be made from soft material so that the bit can make its own seating.
Patent GB-862828-A (GB)
Title: Ship positioning means
IPC: E21B7/128
Filed: 1959-12-21
Abstract: 862,828. Oil wells. CALIFORNIA RESEARCH CORPORATION. Dec. 21, 1959 [Dec. 24, 1958], No. 43361/59. Class 85. In off-shore drilling from a floating drilling vessel, the deviations from the vertical of the drill string, or selected lengths of the drill string, is indicated by sensing means which is movable up and down the string, the mooring means of the vessel being adjusted in accordance with the indications. The sensing means comprise a splithalves assembly 50 which is clamped around the drill string 26 and has resilient e.g. synthetic or natural rubber fingers 62, 64 for centering the assembly thereon, and guide tubes 92 through which the lines 34, 36 run. The lines 34, 36 pass around sheaves 44, 46 and are used initially for pulling down the drill string into the well-head 32, a towing-head 48 being attached whilst at the surface, to the lower end of the drill string. A permanent magnet 183 may be attached to the well head to enable the compass orientation of the lower ends of the tow-lines to be ascertained by an instrument run down the drill string, the orientation of the upper ends of the tow lines being determined accordingly. The sensing assembly 50 comprises two chambers 114, 116 each with a pendulum 118, 140 on shafts 120, 142 at right angles, the chambers 114, 116 containing an oscillation-damping fluid. Canting of the assembly 50, due to deviations of the drill string from the vertical, result in displacements of the pendulums, which are transmitted through the shaft 120, 142 to selsyns 134, 148, the conductors 155, 149 from which are combined with a haulage cable 156 which is used for positioning the assembly 50 on the drill string, a balance weight 157 compensating for the one-sided pull. The conductors are connected to recording mechanism 162 through a rotary connector on the winch, the mechanism 162 including a means for indicating the length of cable 156 paid out, and thus the depth of the test. The selsyns 134, 148 are connected through receiving selsyns to amplifiers and the instruments for separately indicating the displacements of the pendulums, the true deviation from vertical being compounded from these readings. Continuous chart readings of the instruments may be obtained, and the compounding may be effected by known means. In a modification, the flexible fingers 62, 64 are replaced by castors having resilient tyres, the pendulums have spring leaf suspensions each having a strain gauge attached thereto to produce an electrical signal in proportion to the degree of bending of the spring. These signals are fed to the amplifiers, and the instruments through balancing bridges which are adjustable to give zero readings when the drill string is vertical. The cable 156 may be guided down a tow-line by a split sleeve 164 to prevent fouling.
Patent GB-881269-A (GB)
Title: Improvements in and relating to rolling-mill trains
IPC: B21B1/18
Filed: 1959-12-22
Abstract: 881,269. Rolling. SCHLOEMANN A.G. Dec. 22, 1959 [Dec. 24, 1958], No. 43470/59. Class 83 (4). In a rolling mill train for a mixed rolling schedule comprising a series of groups of preliminary rolling stands staggered alternately along two parallel rolling lines along which lines the material to be rolled passes in the same direction, a removable rolled stock guide is provided extending from one line of rolls to the other between each two adjacent groups of rollstands in different lines of rolls. A rolling train comprises a first group of preliminary rolling stands 2 following by groups 6-12, each comprising two stands connected by looping tables 13a to 13g, 14a to 14c and 15a to 15c so that the work may pass through various sequences of the stand groups to provide for different rolling schedules. The material then passes to the finishing stands 18a or 18b via guides 17a, 17b respectively. The material may be looped between the individual stands of the twostand groups. Shears 3, 16 are provided in the train.
Patent GB-1061653-A (GB)
Title: Magnetic materials with high permeability
IPC: C22C19/00
Filed: 1963-11-04
Abstract: A soft magnetic material consists of 0.1 - 10% Ge, 0 - 1% Mn and the balance Ni/Fe in the proportions 40-90% Ni and 10-60% Fe.
Patent GB-1346213-A (GB)
Title: Method of coating tablets
Inventor: KAWATA R
IPC: A61K9/28
Filed: 1971-09-17
Abstract: 1346213 Coated tablets YAMANOUCHI PHARMACEUTICAL CO Ltd 17 Sept 1971 [25 Sept 1970] 43543/71 Heading A5B A tablet of improved stability, containing an inner tablet core coated with a medicamentfree, moisture-impenetrable coating composition free from tendencies to crack and (to increase disintegration time) containing less than 50% by weight of calcium lactate and more than 50% by weight of sugar or sugar alcohol, is prepared by applying to tablet cores a coating composition prepared by adding less than 40% by weight of calcium lactate to an aqueous sugar or sugar alcohol solution. The sugar or sugar alcohol may be sucrose, mannitol or sorbitol. The coating composition may also contain a colourant, an opaquing agent, a flavouring agent and/or a thickening agent.
Patent GB-1103830-A (GB)
Title: An improved clip
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16D3/72
Filed: 1964-10-26
Abstract: 1,103,830. Shaft couplings. F. T. PRODUCTS Ltd. 25 Oct., 1965 [26 Oct., 1964], No. 43563/64. Heading F2U. A universal joint 10 comprises a U-shaped spring steel strip with square holes in each limb sprung to frictionally engage the D- shaped ends of shaft 23, 24 and allows lateral misalignment of the shafts. The limbs (12, 13) of the joint, Fig. 1 (not shown), have tongues (19, 20) adjacent the holes providing faces (19a, 20a) to engage the flat on the respective shaft and the limb ends (16, 17) are bent around to engage the opposite sides of the shafts.
Patent GB-1354799-A (GB)
Title: Lamp holder assembly
IPC: H01R13/42
Filed: 1971-09-21
Abstract: 1354799 Lampholders FORD MOTOR CO Ltd 21 Sept 1971 [1 Oct 1970] 43857/71 Heading H2E A lampholder assembly comprises a housing 1 having a bulb socket 2 and a pair of pillars 4 which are formed with grooves 14 for receiving lugs 13 of a connector holder 5 adapted to receive a connector 7 carried by a wire 6. A resilient arm 9 which may be integral with the connector holder is used to urge the connector 7 into contact with the bulb terminal and a side wall 10 of the arm 9 positions the connector laterally with respect to the holder. A tongue 11 on the connector prevents its withdrawal from the holder. The holder is generally of insulating plastics material but the housing and socket may be of plastics material or metal. When the socket is of insulating material the earth connection may be made by an additional connector either in the holder 5 or in a similar additional holder.
Patent GB-1076668-A (GB)
Title: A circuit arrangement for indicating time delays incurred by electrical pulses
IPC: G04F10/00
Filed: 1965-10-15
Abstract: 1,076,668. Measuring time delays. TELEFONAKTIEBOLAGET L.M. ERICSSON. Oct. 15, 1965, No.43879/65. Heading G1U. An arrangement for measuring the time delay of a circuit MOBJ comprises: a variable frequency pulse source PULS connected to a reference channel E and a channel C containing circuit MOBJ to be measured; a first NAND-circuit 1 having one input connected to the output from each channel; a second NAND-circuit 2 having one input connected to channel E, and the other connected to the output of the first NAND-circuit; integrator circuits INTF, INTD connected to the outputs from the two NAND-circuits D, F; and an indicator for comparing the outputs from the two indicators. The pulse signals on D, F have mark/ space ratios dependent on the delay T of circuit MOBJ and the frequency f of the pulse source PULS. If the frequency of the pulse source is varied until the two mark/space ratios are equal, as indicated by a null on the indicator, then T = “f. In order to reshape the pulse after passing through circuit MOBJ they are fed through a limiter LIMT and an amplifier AMPL, a variable delay JUST being included in the reference are to compensate for the delay in these elements. The pulse frequency is determined by a divider chain FDIV and frequency meter FRVR connected to the pulse source PULS.
Patent GB-1516527-A (GB)
Title: Use of polydodecenamers as reinforcing resins for elastomers
IPC: C08L65/00
Filed: 1975-10-27
Abstract: 1516527 Elastomers reinforced with a polydodecenamer and foams thereof CHEMISCHE WERKE HULS AG 27 Oct 1975 [2 Jan 1975] 44080/75 Headings C3C C3M and C3P A reinforced elastomer contains as reinforcing resin a polydodecenamer which has been manufactured from (a) 50 to 95% by weight of cyclododecene, (b) 5 to 40% by weight of cyclododecadiene and, optionally, (c) up to 10% by weight of 1,5,9-cyclododecatriene, in the presence of a solvent and with the aid of a metathesis catalyst, and which has a reduced specific viscosity, measured in decalin of 135 C., of 0À5 to 6 dl/g and a trans-vinylene content of more than 60%. Examples are given in which polydodecenamers are prepared from the said three monomers, incorporated in styrenebutadiene rubber formulations and the resulting compositions are cured. The product of example 7 is a microporous soling material, azodicarbonamide being incorporated in the rubber formulation, which contains coumarone resin and paraffin wax.
Patent GB-1454933-A (GB)
Title: Process for the treatment of acidic waste liquid containing dissolved salts
IPC: C22B3/44
Filed: 1974-10-12
Abstract: 1454933 Ca salts; CaSO 4 ; CaS; CaO TIOXIDE GROUP Ltd 29 Sept 1975 [12 Oct 1974 16 Nov 1974] 44297/74 and 49700/74 Headings C1A and C1C Aqueous sulphuric acid solutions containing metal sulphates particularly those of Fe, Al and Mg are treated to reduce the acidity and to remove the greater part of the dissolved metal salts in a readily disposable solid form by (i) increasing the pH of the solution by the addition of a basic Ca compound, in particular CaO, CaCO 3  or CaS thereby selectively precipitating CaSO 4 , (ii) separating the CaSO 4  and calcining it to yield CaS and/or CaO, (iii) increasing the pH of the mother liquor from (ii) to a value of 7 to 9 by further addition of a basic Ca compound particularly CaO, CaS or Ca(OH) 2  or by recycling the calcined solids from step (iv) to precipitate solid metal compounds and further CaSO 4 , and (iv) separating or calcining the precipitated solids from step (iii). The pH of the solution in step (i) may be increased to a value in the range 1 to 5À5, preferably 1 to 3 and the CaSO 4  so formed in step (ii) may be calcined at 700‹ to 1350‹ C.; preferably at 1200‹ to 1250‹ C. to form CaO, and 700‹ to 1150‹ C. to yield CaS. The precipitate from step (iv) may be calcined in the range 650‹ to 750‹ C. or, if all the precipitate is to be converted to the corresponding oxides, by calcining at 1150‹ to 1350‹ C. under reducing conditions, for example, in a rotary calciner or a fluidized bed, the reduction conditions being provided by the combustion products of the fuel.