baber/WOPTO huggingface dataset:
Patent GB-1280520-A (GB)
Title: Optical device
IPC: G02F1/33
Filed: 1969-10-15
Abstract: 1280520 Modulating light INTERNATIONAL BUSINESS MACHINES CORP 15 Oct 1969 [13 Oct 1968] 50567/69 Heading H4F [Also in Divisions G2 and H1] An optical device includes means for providing an ordered array of coherent light beams, the beams being separated in space and frequency by equal distances and by equal frequency differences respectively, and means for combining the beam so that a moving interference pattern is obtained. The interference pattern is caused to move along a linear path. In one embodiment (Fig. 3) the plurality of beams 34-1, 34-n is produced within the laser cavity, an aperture plate 44 being provided for this purpose. A linear variation in cavity length is provided by a step tuning wedge 33. The ordering to give the predetermined phase and equal frequency differentials is by an acoustic wave modulator 36. This may lock only transverse modes, or, if present, both transverse and longitudinal modes. In an alternative embodiment a beam 102 (Fig. 5) from a single laser 100 is circularly polarized and after reflection from a partially reflecting mirror 106 is reflected by three other mirrors 108, 110, 112 to give the ordered array. The frequency differences are caused by frequency shifters 122, 124 (electro-optic devices), a lens 126 combining the beams to move from the moving interference pattern along a line 130. In a further embodiment the separate beams emanate from separate lasers. Alternatively a single longitudinal and transverse mode laser beam (Fig. 4, not shown) passes an acoustic wave modulator operable at a given frequency. A mirror configuration co-operates with the acoustic wave modulator to provide the plurality of beams. The modulator has an antireflective coating on a surface facing a mirror of the configuration.
Patent GB-1133358-A (GB)
Title: Pressure contact semi-conductor devices
Inventor: LEWIS COLIN BRIGHT
IPC: H01L23/31
Filed: 1966-11-11
Abstract: 1,133,358. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 3 Aug., 1967 [11 Nov., 1966], No. 50693/66. Heading H1K. In a method of assembling a semi-conductor device of the type in which a semi-conductor element 6, the end portion 13 of a conductive terminal 8, spring means 17 and a retaining circlip 18 are arranged in a stack and compressed into a housing 1 so that the element is in electrical contact with the conductive base 2 of the housing and the circlip engages a groove 20 in the wall 3 of the housing, the pressure to which the element is subjected in the completed device is caused to lie within a required range of values by measuring the height of the stack before it is compressed and then increasing the height, if necessary, by inserting one or more shims 21. The element is preferably a PNPN wafer, a molybdenum plate and a gold foil 7 being interposed between the lower surface electrode of the wafer and the copper base 2 and a molybdenum wafer 10 sandwiched between two gold foils being interposed between the upper annular surface electrode of the wafer and the terminal 8. Alternatively the element may be a diode, in which case the gate electrode 11 is omitted. The space in the housing above a mica washer 16 is sealed by a coating 23 of silicone rubber and a filling 22 of material such as " Araldite " (Registered Trade Mark).
Patent GB-1334551-A (GB)
Title: Process for the production of fibre grade terephthalic acid
IPC: B01J31/04
Filed: 1971-11-01
Abstract: 1334551 Production of fibre grade terephthalic acid MARUZEN OIL CO Ltd 1 Nov 1971 [1 Nov 1970] 50748/71 Heading C2C A process for producing terephthalic acid comprises subjecting p-xylene to a liquid-phase oxidation with oxygen or a gas containing molecular oxygen in a solvent comprising a (C 1-8 ) aliphatic carboxylic acid in the presence of a catalyst comprising a source of cobalt, a source of manganese and a source of bromine comprising cobalt bromide and/or elementary bromine, said catalyst having the following characteristics: (a) the amount of cobalt present is from 0À05 to 0À50% by weight based on the weight of solvent, (b) the amount of manganese present is from 1 to 20% by weight based on the weight of cobalt, and (c) the weight ratio of bromine to cobalt is from 1À5 : 1 to 6À0 : 1.
Patent GB-1368278-A (GB)
Title: Flow control means for granular material
IPC: B24C9/00
Filed: 1971-11-02
Abstract: 1368278 Abrasive blasting CARBORUNDUM CO 2 Nov 1971 [10 Nov 1970] 50778/71 Heading B3D [Also in Divsion F2] Flow control means, e.g. for controlling the flow of particulate abrasive material into a throwing-wheel unit 10, comprises a chamber 20 having an inlet 26, and a gate valve including a slidable plate 24 for opening or closing the inlet 26, the plate 24 being urged into closed position by resilient means 46 and openable by means of a pneumatic piston and cylinder arrangement 38 acting through a flexible connection 32 to stiffening member 28 attached to the plate 24. The plate 24, e.g. of polyurethane is urged towards the inlet 26 by looped leaf springs 42, and adjustable screws 44 are co-operable with pins 45 on a plate mounting bracket 34 to limit the extent of movement of the plate 24. A rubber tube 18 may connect the gate 16 to a feed spout 12.
Patent GB-1099051-A (GB)
Title: Method for placing one or more electrical coils in desired spacial relationship withrespect to a core
IPC: H02K15/06
Filed: 1965-11-30
Abstract: 1,099,051. Making electrical coils; electromagnetic forming. GENERAL ELECTRIC CO. Nov. 30, 1965 [Nov. 30, 1964], No. 50840/65. Headings B3A and B3Q. In a method of placing an electrical winding in desired spatial relationship with respect to a coil accommodating member, the placing is effected by means of a surge of current flow through the winding. A stator core 13 is wound so that the winding 12 comprises coil groups 10, 11 which are connected across terminals 19, 20 of a power supply circuit 21. When a pushbutton 26 is operated an electrical impulse of preselected intensity is provided by first charging a capacitor bank to a selected voltage and by discharging the bank through the coil groups 10, 11. Due to the interaction of the magnetic fields arising through the current surge in the windings, the coils are compacted in the stator slots 14 and the end turn portions are pushed back against the faces of the core 13. The end faces may be provided with an insulating member (28), Fig. 7 (not shown), and the compacting is preferably performed by applying two or more impulses of increasing magnitude. Coil removal may be similarly effected by. high power impulses of the correct polarity.
Patent GB-1442404-A (GB)
Title: Device for automatically snubbing a safety belt
IPC: B60R22/185
Filed: 1973-11-06
Abstract: 1442404 Seat belt L'AIGLON 6 Nov 1973 [10 Nov 1972] 51469/73 Heading A3V [Also in Division E2]  A device for snubbing a seat belt comprises a casing 1 carrying a slide 14 supporting a loop 6a of the belt and normally held by a lock 24 in a position to allow free passage of the belt through opening 17. The belt is caught against the edge of the opening if the lock is released. The slide includes a bar 16 around which the loop is entrained, and a profiled bar 20 having shoulders 22. The lock is pivoted on the casing and bears fingers 25 engaging the shoulders. A spring 27 interconnects the slide and lock. In an emergency a solenoid 29 is energised and attracts plates 28 of the look, which thereby releases the slide. A pull on the belt draws the slide in direction f 2  so that the loop is frictionally engaged between the bar 16 and the edge of the opening.
Patent GB-1292993-A (GB)
Title: System for displaying time information in acoustic well logging system
IPC: E21B47/00
Filed: 1969-10-21
Abstract: 1292993 Borehole logging MOBIL OIL CORP 21 Oct 1969 [24 Oct 1968] 51564/69 Heading H4D The three-dimensional configuration of a borehole wall is represented on a display and recording device as patterns in which intensity is a function of the distance of the borehole wall from an acoustic pulse-echo logging tool which scans the wall. In the Fig. 1 embodiment the wall is scanned helically by a rotating transmit/receive transducer 14, to detect any deformation of casing 11, as logging tool 13 is moved through the borehole. The horizontal deflection of cathode ray tube (CRT) 52 beam is synchronized with the transducer rotation by means of downhole potentiometer 30. The (slow) vertical deflection of the CRT beam is synchronized with logging tool depth by means of wheel 132, gear reducer 131 and potentiometer 130. The CRT beam intensity is modulated with a signal which increases as the acoustic echo-time decreases and vice versa; this signal is derived as follows. Downhole circuit 26, including a gate to attenuate transmitter breakthrough, sends signals comprising the envelopes of the attenuated transmission pulse and the borehole wall echo pulse to transistorized uphole circuits 53 (detailed in Fig. 7, not shown), where the transmission pulse is used as a sync. pulse, is delayed at 91, and gates amplifier 94 on to pass the echo pulse. The echo pulse gates amplifier 94 off again. Gate 92 is turned on by the sync. pulse and off by the gated echo pulse and controls ramp voltage generator 96. The peak voltage of the ramp generated while gate 92 is on is detected at 98 and is subtracted at 99 from a reference voltage to give a voltage which decreases as echo-time increases. The output of monostable multivibrator 102 is clamped to the latter voltage at 100, 101 to provide the beam intensity modulation signal for CRT 52. The CRT screen is photographed at 57. A magnetometer may be used instead of potentiometer 30 if the borehole is not cased, to provide a CRT horizontal deflection synchronized with rotation of transducer 14 past magnetic north.
Patent GB-1400299-A (GB)
Title: Governors for internal combustion engines
IPC: F02D1/08
Filed: 1972-11-17
Abstract: 1400299 Automatic control of speed NIPPONDENSO CO Ltd 17 Nov 1972 [18 Nov 1971] 53111/72 Heading G3R A governor for an I. C. engine controls the fuel rack by regulating rod 10 which is adjusted by D.C. motor 13 under the control of electronic device 16 which detects the difference between the required speed, signalled as a voltage Vs and the actual speed detected by pick-up 17 and signalled as a voltage VN. The rod 10 is pivoted at 12c on the movable governing member 7 of a centrifugal flyweight governor driven by the engine. The position of the fuel rack regulating rod 10 may also be detected at 19 and signalled as voltage VR and this voltage may be adjusted by a voltage on line 20 to alter the speed droop characteristic of the governor. In operation the operating voltage VO=Vs-(VR+VN) or alternatively for isochronous operation the positional feedback may not be provided so voltage VR disappears from the above equation.  The mechanical governor can be used alone with the lever 9 coupled to a manual control and the lever 11 locked.
Patent GB-1415300-A (GB)
Title: Open-end spinning machines
IPC: D01H4/12
Filed: 1971-11-16
Abstract: 1415300 Open end spinning PLATT SACO LOWELL LTD 9 Nov 1972 [16 Nov 1971] 53191/71 Heading DID [Also in Division F2] A thrust gas bearing of an open end spinning rotor shaft comprises a first thrust element 32 rotatable with the shaft and a second thrust element 38 which is resiliently mounted. The thrust elements can be arranged so that gas escaping from the bearing acts on the reverse face 53 of the first thrust element. The second thrust element can be mounted on a resilient O-ring 44, a diaphragm, or a compacted crimped wire, secured to the edge of the thrust element, Figs. 4 and 5 not shown. One of the thrust elements may have a spiral groove in its surface so as to pump air from between the clearance between the shaft 3 and the second thrust element 38 into the bearing. The initial source of compressed gas may be disconnected when this pumping action has been produced by the rotating bearing. An adjustable end stop for the thrust bearing may be provided. The rotor shaft 3 may be mounted in a pair of gas bearings. The rotor shaft 3 may be inclined or horizontal, and may be connected directly to the rotor of an electric motor.
Patent GB-1355919-A (GB)
Title: Photographic apparatus
IPC: G03B17/52
Filed: 1972-11-17
Abstract: 1355919 Adjusting view-finder geometry POLAROID CORP 17 Nov 1972 [28 Dec 1971] 53276/72 Heading G2J The viewing optical path of a folding camera, shown in chain-dotted lines, passes through a small aperture 74 and is determined by the geometry of the camera. To allow adjustment of this path for optimum viewing brightness the erecting link 22 has an upper pivot carried on a bracket secured to the section 14 by screws, which pass through slots in the bracket. These slots enable a fine adjustment of the taking geometry at assembly stage.
Patent GB-1528650-A (GB)
Title: Photographic supports having a white resin surface
IPC: G03C1/815
Filed: 1976-12-22
Abstract: 1528650 White pigmented compositions FUJI PHOTO FILM CO Ltd 22 Dec 1976 [23 Dec 1975] 53701/76 Heading C3K [Also in Divisions G2 and B2] A composition comprises a thermoplastic resin, a white pigment and an optical brightening agent of formula wherein A is an organic residue required to complete an aromatic nucleus, R<SP>1</SP> is C 1-12  alkyl, optionally substituted phenyl, or naphthyl, R<SP>2</SP> is H, C 1-8  alkyl or SO 2 OR<SP>1</SP>. R<SP>3</SP> is H, C 1-8  alkyl or a group Suitable resins are polyethylene and polystyrene and the pigment is preferably TiO 2 .
Patent GB-1495977-A (GB)
Title: Hinges
IPC: E05D3/18
Filed: 1974-12-12
Abstract: 1495977 Link hinges for furniture H DROOFF [trading as PRAMETA PRAZISIONSMETALL-UND KUNSTSTOFFERZEUGNISSE G BAUMANN & CO] 12 Dec 1974 [12 Dec 1973 11 Feb 1974] 53829/74 Heading E2F A furniture hinge comprises attachment portions 2 and 4 joined by a linkage comprising a lever 8 one end 8d of which is pivotably and slidably mounted in a guideway 9 on portion 2 the other end of which is pivoted to portion 4 at 10, a lever 11 cross-joined at 15 to lever 8 and pivoted to portion 2 at 12, and a link 13 pivoted at 14 and 16 to portion 4 and lever 11; the guideway 9 being adjustable toward and away from the base of portion 2. The guideway 9 comprises two slotted portions 9b and a block portion having grooves 9e engaged by projections 2a to guide the movement toward and away from portion 2. A screw 20 determines the spacing of guideway 9 from the base of portion 2 and a screw 18 located in a bore 14 slotted at 19 expands the block portion of the guideway against the projections 2a and further projections 2b.
Patent GB-1136728-A (GB)
Title: Improvements in or relating to ceiling systems
IPC: E04B9/32
Filed: 1965-12-21
Abstract: 1,136,728. Suspended ceilings. INLAND STEEL PRODUCTS CO. 21 Dec., 1965 [17 March, 1965], No. 54112/65. Heading E1W. [Also in Division F4] A ceiling system supported from a roof comprises a spider section 88 having two spaced depending sides each terminating in a horizontally disposed upwardly open channel 98, a bracket 110 engaged in each channel and extending normally and horizontally therefrom, and main runners 64 and cross runners 66, Fig. 13, respectively engaging the channels 98 and brackets 110. The spider section 88 is carried by a screwed member 140 for vertical adjustment thereon by rotation of an internally threaded sleeve 134 which engages the member 140. A cradle 102 fitted to the spider contains an aperture 108 within which tabs 82 on the ends of the main runners engage so that when bent down they couple the main runners extending in opposite directions from the spider. The ceiling may be provided with panels 28 containing light fittings, or may have smaller panels 190 supported by means of additional runners 67. A ventilating boot 184 may communicate with a slot 182 in a runner 66 having an air control diffuser plate 188.
Patent GB-1436780-A (GB)
Title: Frame structure of seupport members and beam members
IPC: E04B1/58
Filed: 1973-11-22
Abstract: 1436780 Structural joints CEGEDUR SOC DE TRANSFORMATION DE L'ALUMINIUM PECHINEY 22 Nov 1973 [1 June 1973] 54183/73 Heading F2M A supporting column and beam assembly comprises a column 1 having one or more longitudinally extending T-section elements 2 formed on it the arms 22, 23 of each of which are adapted to interlock with grooves formed in thickened portions 36 of the webs 27 of beam members 6, 26 which together form a beam, the beam members being secured to the element 2 either by bolts passed through aligned apertures 41 in the beam members and T-section element or by keys 42, 43 engaged in grooves in the T-section element immediately above and below the beam members, respectively.
Patent GB-1102489-A (GB)
Title: Pump for dishwasher
IPC: A47L15/42
Filed: 1966-12-06
Abstract: 1,102,489. Centrifugal pumps. GENERAL ELECTRIC CO. Dec. 6, 1966 [Jan. 13, 1966], No. 54533/66. Heading F1C. [Also in Division A4] A rotary impeller pump 28 for supplying liquid to a spraying device in a dishwashing machine has a grid screen 35 at its inlet upstream of its impeller (not shown), and a blade 45 for macerating food particles is pivotally mounted by a pin and slot connection 44, 46 to a transverse projection 43 on a rotary shaft 42, which may be secured to or from the pump impeller shaft. The pivotal connection between the blade 45 and the projection 43 minimizes jamming. Large particles which cannot be comminuted by the blade 45 may be projected thereby into a chamber 47 having an access plug 48 for cleaning purposes.
Patent GB-1097379-A (GB)
Title: Silicone rubbers
IPC: C08K3/04
Filed: 1966-12-07
Abstract: A silicon rubber is made by mixing: (A) a hydroxylated diorganopolysiloxane having a viscosity of at least 5000 cs. at 25 DEG  C., and (B) from 20 to 50 parts (by weight) per 100 parts of (A) of a carbon black having an average particle size of less than 50 millimicrons and a structure index of from 120 to 200, and thereafter admixing therewith; (C) a silane of the formula RnSi(OR1)4- n or a partial hydrolysate thereof, wherein R is a monovalent hydrocarbon (h.c.) or halo-h.c. radical, R1 is a radical containing from 1 to 8 C atoms selected from h.c., halo-h.c. and omega-alkoxyalkyl radicals and n is 0 or 1, (C) being present in an amount of 2-10 parts per 100 parts of (A) and (D) a curing catalyst, and immediately thereafter allowing the mixture to cure.  Catalysts (D) specified are dibutyltridi-acetate and -octoate, stannous and ferric octoates, cobalt naphthenate, tetra - butyl -, - octyl - and - isopropyltitanates, n - hexylamine, hexylaminehydrochloride, butylamine acetate and guanidine 2-ethylhexoate. Plasticizers, e.g. liquid siloxanes, thickening agents, e.g. hydrogenated castor oil or CaCO3, and other conventional additives, may also be added.  Examples of the above compositions are given.
Patent GB-1457977-A (GB)
Title: Transferring wound rolls of web material
IPC: B65H19/12
Filed: 1974-12-19
Abstract: 1457977 Handling web rolls MASCHINENFABKIK GOEBEL GmbH 19 Dec 1974 [21 Dec 1973] 54965/74 Heading B8R An apparatus for transferring a bound web roll 33 from the binding station defined by a pair of binding rollers 34, 35 to a delivery station comprises a support surface 37 disposed between the stations and a rolling device which presses the web roll into engagement with the surface and displaces it a predetermined speed corresponding to the speed of the rolling device. The rolling device may be formed by an endless belt 47 driven by a motor 48 and displaceable along the surface by a rod 44 by a fluid cylinder assembly 50 to 54 and a lazy tongs 49. The rod may be biased into engagement with the web roll periphery by a further fluid cylinder assembly 39 to 42. In a modification the endless belt may be replaced by a roller (7, Fig. 1) and a belt (11) whose ends are attached to a fixed and resilient support (12 and 13, 14, respectively).
Patent GB-1416454-A (GB)
Title: Compositions for treating their hair
IPC: C08G73/06
Filed: 1972-11-28
Abstract: 1416454 Hair treating compositions L'OREAL 28 Nov 1972 [29 Nov 1971] 54983/72 Heading A5B [Also in Division C3] Compositions for use in treating hair comprise polymers having recurring units of formula where A is a radical derived from a heterocycle containing two secondary amino groups, two amine oxide groups or one secondary amino group and one amine oxide goup and Z denotes a radical B or B<SP>1</SP> which radicals may be the same or different and 'are alkylene radicals containing up to 7 carbon atoms which may be substituted by hydroxyl radicals or interrupted by aromatic or heterocyclic groups or by oxygen, nitrogen or sulphur atoms or groups. The polymers may be converted into their quaternary ammonium salts or may be oxidised. In examples polymers are obtained by condensing piperazine and epichlorhydrin; N, N<SP>1</SP>-bis (2, 3-epoxy-propyl)-piperazine and piperazine; piperazine, benzylamine and epichlorhydrin; N, N<SP>1</SP>-bis-(2, 3-epoxypropyl)-piperazine and cetylamine; N, N<SP>1</SP>-bis-(2, 3-epoxypropyl)-piperazine and dodecylamine; piperazine and N, N<SP>1</SP>-bis- (chloroacetyl)-ethylenediamine; N, N<SP>1</SP>-bis-(2, 3- epoxypropyl)-piperazine, oleyamine and piperazine; piperazine and diglycidyl ether; piperazine and methylene bis-acrylamide; piperazine and piperazine bis-acrylamide; bis-piperazine-1, 3-propanol-2 and methylene bis-acrylamide; and bis-piperazine-1, 3-propanol-2 and piperazine bis-acrylamide; some of the polymers are quaternised with benzyl chloride and with dimethyl sulphate and one is oxidised with hydrogen peroxide; compositions are obtained by mixing polymers with water, propyl p-hydroxybenzoate, vinylpyrrolidone-vinyl acetate copolymer, trimethyl-cetyl-ammonium bromide, vinylacetate/crotonic acid copolymer, ethyl alcohol, the sodium salt of a long chain sulphonic acid, the diethanolamide of copra fatty acids, the triethanolamine salt of a long chain alkyl sulphuric acid, the monoethanolamide of copra fatty acids, sodium N-lauryl-sarcosinate, acetylated lanoline, a long chain polyhydric alcohol, alkoxylated anhydrous lanoline, hydroxypropyl methyl-cellulose, citric acid, dodecyl-tetradecylhexadecyl-trimethyl ammonium bromide, polyoxyethylenated lauryl alcohol, lauryl diethanolamide, ethyl cellulose, lactic acid, dimethyl alkylamine oxide of copra fatty acids, the sodium salt of N, N-(diethylaminopropyl)-N<SP>2</SP>- dodecyl-asparagine, glycol distearate, cetyl alcohol, stearyl alcohol, lauryl-isoquinolinium bromide, menthol panthothenate, mixed mono- and di-glycerides of fatty acids, copra diethanolamide, sodium monolauryl sulphosuccinate, dyes and perfumes, for use as hair lotions, shampoos and creams.
Patent GB-1466909-A (GB)
Title: Dispensing cartons
IPC: B65D5/66
Filed: 1974-12-20
Abstract: 1466909 Drawer and shell cartons R J REYNOLDS TOBACCO CO 20 Dec 1974 55134/74 Heading B8P A drawer and shell carton for cigarettes, cigars, &c., and formed from paper board has a flap 22 integral with the rear top edge of the shell and secured to the top of the lid 16 on the drawer so that movement of the drawer 18 upwardly of the shell causes opening of the lid. The drawer is formed from the blank shown in Fig. 5 and comprises front and rear panels and sides indicated at 18 and the lid portion indicated at 16. Fig. 6 shows the blank for the sleeve which comprises front, rear, and side panels indicated at 20 and the integral flap 22.
Patent GB-1413860-A (GB)
Title: Electronic feeding bridge for a telephone line
IPC: H04M19/00
Filed: 1973-12-06
Abstract: 1413860 Automatic exchange systems; impedance converters; active reactances INTERNATIONAL STANDARD ELECTRIC CORP 6 Dec 1973 [31 Jan 1973] 56521/73 Headings H4K H3U and H3R A transistor circuit is connected between a D.C. power supply and the wires of a subscribers line so as to simulate an inductance, thereby isolating A.C. signals on the line from the power supply. The circuit shown is connected to an exchange - 48 volts supply and to the wires a, b extending to a subscriber's subset. A theoretical analysis of the equivalent circuit shows that from the A.C. point of view the circuit is equivalent to an inductor connected between the wires of the line with its mid-point grounded, the value of the inductance being given by: which approximates to L = 4R1-R2-C1.