baber/WOPTO huggingface dataset:
Patent GB-1134649-A (GB)
Title: Improvements relating to aerial reconnaissance systems
IPC: G03B15/00
Filed: 1967-11-14
Abstract: 1,134,649. Television. N.V. OPTISCHE INDUSTRIE " DE OUDE DELFT." 14 Nov., 1967 [14 Nov., 1966], No. 51772/67. Heading H4F. An aerial reconnaissance system for recording a picture of a terrain from an aeroplane on a photographic film strip, comprises a rotating roof-mirror scanner 2, Fig. 1, directing received infra-red radiation on to a detector 8 to produce a video signal corresponding to periodically scanned narrow strips of the terrain extending transversely with respect to the course of flight. Secured to the roof mirror 2 is a hollow shaft 9 accommodating the moving part of the photographic recorder. Light from an intensity modulated light source 11 is directed via a slit diaphragm 10 at the end of shaft 9 to a roof prism 19, Fig. 2, having mirrored faces, and a focused and demagnified image of the diaphragm 10 is formed by objectives 20 and 21 on the film strip 14 which has a cylindrical surface. Diaphragm 10, prism 19 and objectives 20, 21 rotate with shaft 9. Thus the slit images produced alternately by the objectives will transversely scan the film synchronously with the scanning of the terrain by mirrors 3 and 4 of scanner 2. The film strip is fed lengthwise at a controllable rate proportional to the ratio between the ground velocity v and the altitude of the aeroplane h, i.e. v/h, and the lengthwise (with respect to the film strip) dimension of the substantially rectangular scanning light spot is varied with the film speed in such a manner that the tracks made by the light spot on the film will be substantially contiguous at various film speeds corresponding to various conditions of flight. The length of slit 10, i.e. its dimension perpendicular to the roof edge of mirror 19, is effectively varied by means of an iris diaphragm 13 whose aperture is adjustable in response to variations of the film speed. Alternatively, the slit may be illuminated with a circular beam of variable diameter obtained for example from a diaphragm with a constant circular aperture which is imaged on the slit diaphragm by means of a pair of zoom objectives the focal lengths of which are varied in opposite senses. Since the film speed and the length of the slit diaphragm are varied proportionally to v/h an automatic control device 23 may be used. The recorder may be separate from the scanner, sync. pulses being added to the video signal before transmission. A recorder for use with a scanner having three scanning faces instead of the two faces 3 and 4 in Fig. 1, comprises three objectives spaced 120 degrees apart, and three slits, one for each objective, each extending parallel to the axis of rotation of the recorder and being moved in a cylindrical surface about the axis. In this case a cylindrical sleeve coaxial with that surface and slidable axially in response to changes in the film speed may be used to control the slit length. A pair of oblique mirrors for each slit are arranged on both sides of, and rotate with, the slits to form the radial light paths through the slits, Figs. 3 and 4 (not shown).
Patent GB-1249885-A (GB)
Title: Improvements in or relating to opening containers
Filed: 1968-11-01
Abstract: 1,249,885. Opening containers. NATIONAL STEEL CORP. 1 Nov., 1968 [22 Jan., 1968], No. 51788/68. Heading B8D. A container wall, e.g. of tin-plated steel, aluminium, plastics or foil-paper laminates, has an outer endless scoreline 18 defining a removable section 20 within which lies an inner are shaped scoreline 22. The two scorelines 18, 22 define a tear out segment 24 which contains a securing means 40 for a pull ring 38. Upon raising the pull ring 38, the inner scoreline 22 is ruptured at a point 58 by a Class 2 lever action whereas an end 48 of the pull ring 38 pierces the outer scoreline at 56 by a Class 1 lever action. On moving the pull ring 38 back across the container wall, the tear out segment 24 is torn whilst further tearing displaces the as yet undisturbed removable section 20. The inner scoreline 22 may have its ends joined by a scoreline 32. In a modification, Fig. 8 (not shown), the above arrangement forms a pour opening in a minor portion of a container wall. In a further modification, Fig. 10 (not shown), the outer scoreline defines a removable portion along three side walls of a rectangular container.
Patent GB-1153020-A (GB)
Title: Hand Tool
Inventor: BREEN DANIEL GEORGE
IPC: B25G1/04
Filed: 1967-11-14
Abstract: 1,153,020. Screwdrivers. D. G. BREEN. 14 Nov. 1967 [3 July, 1967], No. 51841/67. Heading B3N. [Also in Division B4] A screwdriver comprises a steel bit 1, removably held in a correspondingly shaped steel socket 3 by a spring-urged ball 4, a square sectioned steel shank 2 welded into the socket, and a plastics handle 5 moulded on to the shank. An enlarged handle 7 is removably located in a steel insert 6 in the handle by a non-circular spigot 9 held in the socket by a spring-urged ball. Enlarged handle 7 includes a ratchet mechanism, whose direction of driving rotation is controlled by a lever 12, and stops 13.
Patent GB-1286288-A (GB)
Title: Process for the preparation of freeze-dried products from liquids
Inventor: ROSELIUS WILHELM
IPC: A23F5/32
Filed: 1969-10-23
Abstract: 1286288 Coffee; tea; and substitutes HAG AG 23 Oct 1969 52014/69 Heading A2B [Also in Division F4] In freeze-drying aqueous extracts of coffee, coffee substitute, or black or herb tea, initially the liquid is rapidly wholly or partially frozen (up to 50%, e.g. 10%-30%) by direct contact with cooling surfaces or agents having temperatures below the eutectic freezing point of the liquid, the resulting ice-liquid mixture is allowed to thaw partially at a temperature (e.g. 0‹C) exceeding the eutectic freezing point so that the unfrozen liquid droplets increase in size to give a natural colour to the dried product, and the mixture then is slowly totally frozen (e.g. at -30‹C) in a stream of cold air and dehydrated and crushed. It is stated that the colour of the dried product is determined, the fineness of its structure and hence by the freezing speed. To decrease the apparent density of the dried product resulting from a concentrated liquid, the liquid is foamed before or during the initial freezing by means of air, or an inert gas, or a gas mixture. The initial freezing is in a carbon dioxide atmosphere.
Patent GB-1521067-A (GB)
Title: Cathode ray tube phosphor protection circuit
IPC: H04N3/20
Filed: 1975-12-19
Abstract: 1521067 Cathode-ray tube protective circuits UNITED TECHNOLOGIES CORP 19 Dec 1975 [23 Dec 1974] 52156/75 Heading H4T In a CRT such as a TV display but particularly one in which alpha-numeric characters are drawn in line segments, to prevent screen damage when beam current flows for a period of the order of 10 Ás while the vector sweep velocity is zero or small, a gate on a video amplifier 34 is blocked when both the horizontal and vertical absolute sweep velocities are below a preset limit if the video signal would otherwise produce a display. In the presence of a video signal during a period of slow or zero sweep velocity the gate blocks after a delay greater than that on the filters of the sweep detector circuits but smaller than the shortest exposure to the beam likely to cause damage (e.g. 10 ÁS). To display a segment of a character (Fig. 3, not shown), horizontal and vertical sweep ramp voltages are generated 30 after amplification 38, 42 are passed to respective deflection coils 54, 68, the currents through which produce p.d.s. across shunts 56, 70, differentiated by CR circuits 60, 62 and 74, 76 and filtered to remove HF noise by low-pass filters 80, 102. The resultant signal is compared with positive 86 and negative 92 reference levels, normally equal, so that a logical 1 signal generated by OR gate 100, delayed slightly by the filter &c., causes transistor 144 to conduct so long as sufficient sweep velocity to prevent damage exists. However, if sweep is absent a video signal generated by 30, converted to a logical 1 in 120 causes transistor 130 to conduct, the current charging capacitor 134 via the base-collector junction being limited by resistor 126. After one time constant CR of 134, 126, e.g. 2 Ás from failure of sweep, the potential on the inverting input of op amp. 136 exceeds the positive reference voltage on 153 and gate 34 becomes blocked, blanking the CRT; if during the time CR the sweep resumes the capacitor 134 discharges and display occurs, thus causing the short beamfree pause in sweep at the end of a character segment to be ignored and allowing the writing of full stops. After a blanked segment, if the sweep is resumed for the next, the first part will be lost before OR gate produces an unblanking signal. In an alternative arrangement (Fig. 2, not shown) the video-present signal on line 122 is passed to a retriggerable monostable multivibrator with its output pulse delayed by about the above CR time constant, e.g. 2 Ás; this delayed signal causes a bistable latch circuit to lock in to preserve the state of the uninverted output, taken to the gate of amplifier 34, to equal the state of an input set by the filter-delayed sweep-indicating logical signal on line 118.
Patent GB-1057760-A (GB)
Title: Mould for the production of a ceramic article in a casting process and a casting method using the mould
IPC: B28B1/26
Filed: 1964-12-22
Abstract: <PICT:1057760/C6-C7/1> A mould for casting ceramic articles comprises two separable parts made of an electrically non-conductive, porous material, the external surface of the mould having graphite coatings G1, G2 and the two parts being insulated from one another by a layer B1, B2 of electrically insulating material. As shown the mould is shaped to produce plates or saucers, and openings F1, F2 are provided for charging slip.  To the graphite coatings, which are obtained by the application of a graphite suspension in an aqueous or water containing dispersion agent, are secured electrodes which are connected to an A. C. supply at 220 volts. The mould parts may be made of plaster of Paris or fired clay or of a foamed material, such as foamed concrete or foamed synthetic plastics.
Patent GB-1157135-A (GB)
Title: A method for manufacturing Beverages containing Living Lactic Acid Bacilli
Inventor: SHIROTA MINORU
IPC: A23C9/123
Filed: 1966-11-23
Abstract: 1,157,135. Beverages containing living lactic acid bacteria. YAKULT HONSHA K. K. Nov. 23, 1966, No. 52441/66. Heading C6F. In a method for manufacturing a beverage, or a composition for making a beverage, containing living lactic acid bacilli, fresh Chlorella or Scenedesmus algae are autolyzed, the autolyzed product is extracted with water, the aqueous extract solution is mixed with dextrose or sugar and animal milk (skimmed milk powder) to produce a nutrient medium, and lactic acid bacilli, particularly those of the species Lactobacillus acidophilus, are inoculated and cultivated on the nutrient medium to form a cultured broth, to which sweetening materials (cane sugar and sodium cyclamate) and essences are added as desired. The resulting broth may be diluted to taste with sterilized water. A suspension of the algae in a phosphate buffer of pH 7À0 is autolyzed at a temperature of approximately 37‹C. for 24 hours in the presence of toluene ethyl acetate or chloroform with or without shaking, and the autolysis product after crushing or grinding, is extracted with water. Certain comparative experiments are directed to the effects upon the cultivation of the lactic acid bacilli of aqueous, or aqueous alkali or acid extracts of the algae in the absence of any autolysis.
Patent GB-1089458-A (GB)
Title: Method of eliminating cloggings in narrow apertures and/or capillary systems in conducting liquids, and apparatus for the execution thereof
Inventor: BAN TAMAS
IPC: C25F1/00
Filed: 1964-12-24
Abstract: <PICT:1089458/C6-C7/1> A method of cleaning clogged metering holes, narrow waists, or capillary systems in conducting liquids where the material forming said holes, &c. has a conductivity substantially less than that of the liquid, comprises passing a current, preferably in the form of current pulses, through the clogged holes &c. by means of electrodes disposed in the liquid on either side of the hole, narrow waist, &c.  As shown, electrodes 5 and 6 are disposed in an electrolyte 2 on either side of a metering hole 4 of particle-counting apparatus, which consists of vessels 1 and 3 and a conventional counting circuit (not shown) connected to electrode terminals 7, 8.  Operation of a change-over switch 9 allows a condenser 10, previously charged by a source 11, to discharge by way of the electrolyte and electrodes.  The hole 4 forms a high resistance in this discharge circuit causing gas and steam to develop locally at the site of the clogging which then blows off and disperses the clogging.  The condenser may be connected through an amplifier to the switch to obtain the required current density.
Patent GB-1098986-A (GB)
Title: Signal detecting system
IPC: G11B20/10
Filed: 1964-12-24
Abstract: 1,098,986. Pulse discriminating circuits. FUJITSU Ltd. Dec. 24, 1964 [Dec. 28, 1963], No.52488/64. Heading H3P. In a circuit responsive only to signals lying between predetermined upper and lower limits, the signals are fed to lower and upper threshold circuits 15, 17, the outputs of which respectively set and reset a bi-stable circuit 23, the set input being delayed at 27 and fed together with the output of the bi-stable circuit, to an AND gate 29 which thus only passes pulses the amplitudes of which lie between predetermined limits. As described, signals and noise from a magnetic reproducing head 11 are amplified and rectified at 12 before being fed to the threshold clippers 15, 17. The clipping level of the lower circuit 15 is set to be greater than the noise level. Pulse shapers 18, 21 are arranged to provide pulses at the leading or trailing edges of waveforms passed by the respective clippers 15, 17. In Fig. 4 (not shown) the delay 22 is included in the reset line to the bi-stable circuit 23. Reference has been directed by the Comptroller to Specification 998,147.
Patent GB-1093173-A (GB)
Title: Manufacture of mineral filled polyurethane foams
IPC: C08J9/00
Filed: 1964-12-24
Abstract: A flexible polyurethane foam composition suitable for cushioning and having substantially the density and body of flexible rubber latex foam, which comprises a flexible polyurethane foam material having uniformly dispersed therein from 30 to 200% by weight, based on the weight of the polyurethane portion of the said material, of an inert mineral filler having substantially spherical-shaped particles and a density of at least 2 grams per cubic centimetre and an average particle diameter between 50 and 800 microns, said polyurethane material in the absence of filler being of low density, e.g. normally from 1 to 2 pounds per cubic foot, but when filled having a density substantially that of flexible rubber latex foam, e.g. from 3 to 4 pounds per cubic foot, and having substantially the volume, tensile strength, elongation and load-bearing characteristics of equivalent unfilled foam.  The polyurethane foams are obtained by reacting an excess of a specified aromatic polyisocyanate and a long chain polyol, preferably a polyalkylene ether polyol, or a saturated polyester having terminal hydroxy groups in the presence of a catalyst by known methods.  The preferred fillers are zircon sand and zircon silicate and other specified fillers are barium sulphate, beach sand, ground quartz, silicon dioxide, zirconium oxide and zinc oxide.  The reaction of a mixture of polyols derived from propylene oxide and glycerine and from ethylene oxide and ethylene glycol with a mixture of tolylene di-isocyanates is described wherein a master-batch consisting of the filler and part of the polyol mixture; a catalyst solution consisting of water, triethylenediamine and a silicone surfactant; trichlorofluromethane; the di-isocyanate; and a tin masterbatch consisting of a 1 to 5% solution of stannous octoate in either or both of the polyols are simultaneously blended and introduced into a mould.  The fully expanded product was heated and then allowed to cure at room temperature.
Patent GB-1291084-A (GB)
Title: A continuous casting machine of the grooved wheel-and-tape type having an improved molten metal feed device
Inventor: PROPERZI ILARIO
IPC: B22D11/06
Filed: 1969-10-27
Abstract: 1291084 Continuous casting I PROPERZI 27 Oct 1969 [25 Nov 1968] 52588/69 Heading B3F In a casting machine of the grooved-wheel- and-band type 2, 4, an end extension 14 of a vertical melt feed pipe 13 from a tundish extends below the mould inlet so that it is immersed in the melt bath in the mould in use, e.g. to a depth between 60 and 150 mm. for a wheel 2 of 1400 mm. diameter. The bore of extension 14 is greater than that of the pipe 13, e.g. double, so that turbulence is reduced. The cross-section of the extension 14 may be trapezoidal, like that of the mould.
Patent GB-1327210-A (GB)
Title: Shaft furnaces
IPC: C21B7/10
Filed: 1970-11-06
Abstract: 1327210 Making shaft furnaces DEMAG AG 6 Nov 1970 [12 Nov 1969] 52905/70 Heading B3A [Also in Division F4] A hearth construction for a shaft furnace comprises a layer of graphite or carbon blocks 5, a motor layer 6 located below the blocks 5 and a plurality of cooling ducts 7 embedded within the metal layer. The cooling ducts are arranged in a pattern such that each tube forms a secant to a base circle of the furnace wall. The cooling ducts 7 are in communication with pipe sockets 13 through compensators 12 which are arranged in a tamping layer 2 at each side of the bottom of the furnace. Inlet 14 for the cooling medium which preferably includes glycerine is arranged lower than the outlet 15. In a method for making the bottom wall of a shaft furnace, a plurality of cooling pipes are disposed within a casting mould and molten metal is applied to completely cover the pipes. The temperature of the pipes may be regulated from the interior of the pipes. The pipes are formed of copper and the metal is aluminium.
Patent GB-1127058-A (GB)
Title: A fire- and pressure-resistant assembly of building elements
IPC: E04B2/62
Filed: 1966-11-25
Abstract: 1,127,058. Thermal and sound insulation. SVENSKA FLAKTFABRIKEN A.B. 5 Nov., 1966 [25 Nov., 1965], No. 52972/66. Heading F2X. [Also in Division E2] The walls and ceiling of, for example, a fan room comprise a fire and pressure resistant construction of slab-shaped sheet metal casings which are secured together by U-shaped channel sections 3 engaged in grooves 8 in each casing and clamped together by bolts 4. The casings each contain heat and sound insulation material 2. The channel sections 3 also contain insulation material, and the grooves 8 are lined with insulation and sealing material 10. Rotation of the bolts on tightening nuts 5 is prevented by providing a square boss 11 on each bolt.
Patent GB-1441770-A (GB)
Title: Circular knitting machines
IPC: D04B15/00
Filed: 1973-11-19
Abstract: 1441770 Knitting-machines TELARES CIRCULARES SA 19 Nov 1973 53606/73 Addition to 1248365 Heading D1C The frame for a circular knitting machine disclosed in the parent specification serial no. 1248365, is modified in that the legs of the bottom frame portion 1 do not have interconnecting cross members at their upper ends but instead have gussets 7 which support the legs of the intermediate frame portion 2. A platform 20 is mounted on legs at one side of the frame for carrying machine driving mechanisms. Instead of the upright edges of the frame being stepped as shown they may be continuous each edge having a vertical lower portion and an inwardly inclined upper portion.
Patent GB-1392870-A (GB)
Title: Force balance transmitters
IPC: G01L13/02
Filed: 1972-11-24
Abstract: 1392870 Fluid-pressure servomotor systems FISCHER & PORTER CO 24 Nov 1972 [27 Dec 1971] 54540/72 Heading G3P In a force balance transmitter, an input signal is applied to one end of a pivoted lever 22 and is opposed by a feedback signal applied to the other end of the lever through a bellows assembly 24, the bellows assembly including a first bellows Al nested within a larger bellows A2 whereby the gain of the transmitter can be changed by applying the output signal to either bellows or to both. In the preferred embodiment, the input signal is derived from the fluid flow through an orifice plate and applied to diaphragms 11A, 12A which operate a flapper 26 through a lever 14, a vector mechanism 17, 21 with a floating pivot 18, and the lever 22. A selector switch 29 brings either or both bellows into operation to effect large changes in transmitter gain which angular adjustment of a member 20 on which the floating pivot is carried effects fine changes in gain. The transmitter output is applied to a remote recording or indicating station.
Patent GB-1160422-A (GB)
Title: Improved Fluid Mixer Device.
Inventor: DODDS MATTHEW
IPC: G05D11/00
Filed: 1965-12-29
Abstract: 1,160,422. Mixing flowing fluids in proportions. M. DODDS. 29 March, 1967 [29 Dec., 1965], No. 55027/65: Heading B1C. [Also in Division F1] Apparatus for mixing a proportion of secondary fluid (e.g. soluble oil) in a primary fluid (e.g. water) comprises a double acting cylinder 17 actuated by the water pressure, and coaxial metering cylinders 18, 19 the pistons 20 of which are secured one each end of the main piston 21. As piston 21 moves to the right, additive discharged from Cylinder 18 enters one side of a regulating cylinder 22 having a free piston 23, and when the regulating cylinder is full the remainder of the additive passes via a non- return valve 29 into the water supply line. Simultaneously metering cylinder 19 is exhausting the other side of the regulating cylinder and thereafter draws further additive from a reservoir 25. At the end of its stroke piston 20 opens spring-loaded poppet valves 27, 28 which respectively (a) admit pressure water to one side of a doubleacting actuating cylinder 12 which operates a change-over valve 11 for the water supply to main cylinder 17 and (b) open the other side of actuating cylinder 12 to discharge. Mixture from the main cylinder 17 and water from the actuating cylinder 12 both pass to a discharge point 9 and thence to a mixture storage tank through a ball-cock, closure of which when the tank is full arrests the apparatus. The regulating cylinder 22 has a stroke adjuster 31 by which the proportion of additive diverted into the regulating cylinder may be altered; when the free piston has full travel no additive is mixed with the primary fluid. When the secondary fluid is a lubricant it is, as shown, discharged with the primary fluid upstream of the apparatus, but if not it may be discharged at the discharge point 9. Constructional details are depicted in Figs. 1-3 (not shown).
Patent GB-1494628-A (GB)
Title: Time division switching system
IPC: H04Q11/04
Filed: 1974-12-19
Abstract: 1494628 Automatic exchange systems WESTERN ELECTRIC CO Inc 19 Dec 1974 [21 Dec 1973 (3)] 55038/74 Heading H4K In a t.d.m. switching system having a plurality of line switches connected to a time division bus, for providing interconnections in respective time slots, data processing means is arranged to be responsive to data relating to each interconnection only during respective time frames assigned thereto in a repetitively recurring series of time frames. The invention is applied to a system having 64 interconnection slots per frame and the data processing is arranged in a superframe of 64 frames whereby call data processing, e.g. call set up and release, is performed during the frame corresponding in number to the time slot allocated to the call. Scanning for new demands for service is performed during any supervisory frame for which the corresponding time slot is not allocated to a call. Specifications 1,494,629 and 1,494,630 claim other aspects of the system. The program is arranged as a number of subroutines corresponding to call states i.e. idle, hook check, register request, dial tone, dialling, busy, ring, and talk. A detailed description of the system is given in the abridgment of Specification 1,494,629.