baber/WOPTO huggingface dataset:
Patent GB-1118690-A (GB)
Title: Exercising devices
IPC: A63B21/04
Filed: 1967-03-10
Abstract: 1,118,690. Exercising device, rowing machine, auto masseur. W. ILLINGWORTH. 10  March. 1967, No. 11266/67. Headings ASR and A6M. In an exercising device which comprises parallel rails 1 with a small carriage 6, running to and fro along the rails, and capable of supporting the human body in a sitting or lying position, the carriage is equipped with springs 8 against which it can be pushed along the rails and which return it to the original position when the push ceases; with three pairs of wheels 3, 4 and 5 the axles of which are not in line so that at any one time only four wheels are in contact with the rails and a rocking motion can be imparted to the carriage; and with a fabric band 9 fastened loosely across by cords 10 to points 11 and 12 diametrically offset from the centre of each of the pair of wheels 4. There may also be fastened to an end 2 of the device springs 7 having hand-grips. The person using the machine lays or sits on the carriage 6 with the band 9 across the body or legs. Pushing with the feet causes the carriage to move along the rails, and the eccentric fastening of band 9 causes it to apply a massaging action to the body of the user.
Patent GB-718987-A (GB)
Title: Improvements in or relating to corrosion resisting copper base alloys
IPC: C22C9/01
Filed: 1952-05-05
Abstract: A corrosion-resistant alloy consists of: Al 9.5-9.9 per cent.; Ni 1.7-2.4 per cent.; Fe trace-1.0 per cent,; Cu the remainder. The corrosion-resistance may be further improved by quenching from 600-650 DEG C.  Specifications 135,963, 166,817, [both in Class 82 (i)], and 433,534 are referred to.
Patent GB-720929-A (GB)
Title: Balanced modulator circuit, particularly for use in radio or line carrier systems
IPC: H03C1/54
Filed: 1953-04-24
Abstract: 720,929. Modulating systems. WESTERN ELECTRIC CO., Inc. April 24, 1953 [April 30, 1952], No. 11353/53. Class 40 (5). A balanced modulator circuit, for use with unbalanced modulating voltages, comprises a pair of vacuum tubes 10, 12 with a common resistor 18 between cathodes and earth and with the modulating voltage applied between the grid of one tube 10 and earth, the grid of the other tube 12 being earthed. In this way, the single-sided modulating voltage appears effectively as a push-pull input to the grid circuits. The carrier is applied to the tubes in parallel, and the side-band output is taken in push-pull from the anode circuits. The circuit parameters and bias voltages are such that the tubes operate as non-linear devices. As shown, the carrier is applied through a series resistor 22 between the cathodes and earth, and the H.T. supply B+ is connected between earth and a tap on a resistor 30, which shunts the output transformer 28. A filter 32 may select a single side-band from the output, and a filter 34 may equalize or reject certain frequency components of the modulating voltage.
Patent GB-753695-A (GB)
Title: A process for the manufacture of silica-alumina catalyst
IPC: B01J21/12
Filed: 1954-04-20
Abstract: Silica-alumina catalyst is prepared by forming an alkaline silica hydrogel, mixing with sufficient acid to reduce the pH to between 6.0 and 8.0, commingling with aluminium sulphate solution and then precipitating alumina by addition of an alkaline precipitant, e.g. ammonia.  A slurry of silica hydrogel is formed by mixing sodium silicate solution with sulphuric or hydrochloric acid and is aged at a pH of 9.5-10.5 for 10-20 minutes; after reduction of the pH to 6.0-8.0 by addition of sulphuric acid, the slurry is again aged for a short time and then mixed with aluminium sulphate solution which may contain 1.5-2.5 per cent by weight of sulphuric acid; ammonia is then added and the product filtered, reslurried, and spray dried; the microspheroidal particles are washed and redried.  Alternatively, the product may be ground or formed into pellets.  It is suitable as a cracking catalyst or as a carrier for a platinum reforming catalyst. A preferred AP2O3:SiO2 ratio is 13:87.
Patent GB-293928-A (GB)
Title: Improvements in weighing scales
IPC: G01G1/00
Filed: 1927-04-29
Abstract: 293,928. Dehn, F. B., (Weightograph Co.). April 29, 1927. Pendulum-weight apparatus.-In weighing- apparatus of the kind in which the lever-mechanism is connected by a flexible tape to a cam on the pendulous resistant, the cam is adjustable circumferentially with respect to a supporting shaft by means of a carrier that is rotatably mounted on the shaft and upon which the cam is slidably mounted. The cam 19 is slotted to receive a parallel-sided projection 33 on a carrier 20 that is adjustably mounted on the pendulum-supporting shaft 21. The cam is adjustable on the carrier in a radial direction , with respect to the shaft, and is held in adjusted position by screws 36, 38, 41. The carrier may be fixed to the shaft in any desired circumferential relation by a set-screw 28.
Patent GB-544476-A (GB)
Title: Improvements in a method of manufacturing alloys, in particular steel alloys, and apparatusses to perform it
IPC: B22F3/20
Filed: 1940-07-09
Abstract: 544,476. Alloys. AMERICAN ELECTRO METAL CORPORATION. July 9, 1940, Nos.' 11460 and 11461. Convention dates, Aug. 2, 1939 and April 10, 1940. [Class 82 (i)] [Also in Group XXII] Alloys are made by compressing a mixture of powdered constituents and extruding it into a confined space in which the strand is subjected to heat-treatment and which serves to protect it from the atmosphere and in which further compression may also be effected. The production of the following alloys is referred to: iron or steel alloys containing one or more of the elements tungsten, molybdenum, cobalt, nickel, silicon; permanent magnet alloys containing one or more of the metals iron, nickel, cobalt, and one or more of the metals titanium, aluminium, beryllium, magnesium, chromium, vanadium; low carbon steels, the carbon being used either in the form of iron carbide or a powder such as lampblack ; nickel-aluminium alloys; carbide type alloys consisting of an iron group metal and carbides such as of tantalum, titanium, and tungsten. In the apparatus shown in Fig. 2, the preformed mixture 43 is raised by a plunger 14 into an electrically heated chamber 11 and thence through a nozzle 39 into a slightly tapered channel 17 in which the strand is heated by electric heater 29 and cooled by coils 34. Additional heaters 28 and coolers 37, 38 are also provided. In modifications, the channel 17 need not be tapered; the nozzle 39 is not heated; the heaters may be so arranged as to heat the nozzle 39 most intensely followed by progressive cooling through succeeding zones; the channel 17 may be surrounded in successive zones by heaters coolers, and heaters; and the shape of the cross section of the strand may be changed, e.g. from circular to rectangular or annular by suitable formation of the upper end of the channel 17 or by the use of a mandrel.
Patent GB-688483-A (GB)
Title: Process for manufacturing steam-cured light-weight concrete
IPC: C04B28/18
Filed: 1950-05-09
Abstract: In a process for manufacturing steam-cured light weight concrete from a mixture of fine-ground burnt unslaked lime, preferably high quality lime with high CaO content, and siliceous materials having a high silica content, water and a metal in powder form e.g. aluminium which can develop gas in the mixture, there is added in small amounts both an insoluble silicate-containing material capable of hydration such as finely ground Portland cement or finely ground basic blast furnace slag and a water-soluble sulphate sufficient to retard the slaking of the lime to provide sufficient time for gas development to occur before the batch thickens excessively.  The silicate material may be water glass, Portland cement, slag cement or a basic blast-furnace slag.  In an Example the following proportions of ingredients were used: 370 grm of a mixture of 20 per cent burnt lime and 80 per cent sand, 30 grm Portland cement, 3 grm gypsum, 1-4 grm K2SO4, 0.625 grm Al. powder fineness 28.  The lime and sand are ground dry and intensively mixed when water is added in the mixer to dissolve the sulphate or water glass and then lime, sand and cement are added. Mixing continues for 1 minute when the Al. powder is added and thereafter for a further 2 minutes before emptying the batch into the moulds.
Patent GB-578408-A (GB)
Title: Improvements in or relating to abrasive-coated sheets or belts
IPC: B24D11/00
Filed: 1943-07-14
Abstract: 578,408. Abrasive-coated sheets and belts. CARBORUNDUM CO. July 14, 1943, No. 11486... Convention date, July 15, 1942. [Class 60] A flexible abrasive sheet or belt comprises a backing of leather, which may be of animal, fish, or bird hide, to which abrasive grains consisting of or containing, diamond grit are secured by a bonding coat as of artificial resin, e.g. cured phenolformaldehyde. The leather and the abrasive coat may be rendered waterproof. The grit may be mixed, e.g. with silicon. carbide and may be spread over the whole surface, or as shown in Fig. 5, only on raised areas formed in the leather as by impression, or, in the case of a belt, on the margins only. The leather may be reinforced by a flexible layer as of steel, secured thereto as by hide glue, or a silicate, artificial resin, or celluloid type of cement, and if desired protected by another layer of leather or other material secured by adhesive ; in the case of a belt the reinforcing layer may be a tape narrower than the belt, giving greater central abrading action. To impart flexibility to a belt one or more longitudinal grooves may be formed along its rear surface. The leather may be flat, or its abrasive-coated surface may be curved to fit the contour of the work-piece to be abraded. In an example, the leather is . buffed, sized with methyl cellulose which may contain clay, whiting, non-diamond abrasive, or other filler, coated with the bonding resin and the abrasive grains, dried, coated with a resin size, and heated to cure the bonding and sizing coats ; whereafter a waterproofing material, e.g. a vulcanised vegetable oil is applied to the edges and back of the leather. The finished article may be flexed mechanically to remove stiffness. Belts of the material may be spliced by skiving and roughening the ends, and uniting the bevelled surfaces under pressure with cement, e.g. of a celluloid or polyvinyl acetal resin type ; or if the belt has a reinforcing metal strip, it may be spliced either by butt or lap silver soldering the ends of this strip or by bending them to form interengaging hooks. In belt form the invention may be used for shaping, finishing, polishing, or regrading the interior surfaces of wire, bar, or tube drawing dies made of cemented hard carbide ; and such operations may be performed in the apparatus shown in Fig. 8, wherein the endless abrasive belt 33, carried by a driven wheel 32 and supporting a floating guide wheel 34 which may be weighted, is led on both its runs, by idler rolls 37, 38 adjustable in height, through an apertured table 35 which is rotated by a drivepinion 36 and supports the die 22 in a chuck (not shown). In an example of procedure described, three belts of progressively increasing fineness are used in succession in the apparatus. Specifications 264,624, [Class 60], and 433,880 are referred to.
Patent GB-1425547-A (GB)
Title: Lactone colour-formers for pressure-sensitive recording material
IPC: B41M5/145
Filed: 1974-03-14
Abstract: 1425547 Colour formers HODOGAYA CHEMICAL CO Ltd and FUJI PHOTO FILM CO Ltd 14 March 1974 [15 March 1973] 11511/74 Heading C4P [Also in Divisions D2 and C2] The invention comprises colour formers of the general formulµ wherein A and A<SP>1</SP> which may be the same or different are pyrrolyl, indolyl, carbazolyl, acridinyl, phenothiazinyl, thienyl, thianaphthenyl, julolidinyl or tetrahydroquinolyl with the proviso that A and A<SP>1</SP> cannot each simultaneously be selected from an indolyl or pyrrolyl group and Y is H, halogen, C 1 -C 4  alkyl or phenyl. They are prepared by reacting a compound of the general formulµ with a compound A-H wherein A, A<SP>1</SP> and Y are as above. The reaction takes place in presence of cone. sulphuric acid, acetic anhydride or polyphosphoric acid at 50-130‹ C. The compounds are used in pressure sensitive recording papers and processes.
Patent GB-947972-A (GB)
Title: Method for the manufacture of agglomerates of coal similar to artificial anthracite
IPC: C10L5/16
Filed: 1962-03-27
Abstract: A process for briquetting fuel comprises forming a paste of coal slack and coal tar pitch, heating to 90-100 DEG  C., pressing into briquettes, and steadily heating in a non-oxidizing atmosphere to about 700 DEG  C. for from 1 hour 35 minutes to 5 hours 45 minutes, characterized in that the paste contains coal slack of 1 mm, maximum size, 8-5% of coal tar pitch. 1-2.5% sulphur, 1-2% anthracene oil, and about 5% water.  The proportions of the constituents are dependent on the type of coal, e.g., non-bituminous, butuminous, or luminous burning (flaming) coal, from which the slack is obtained.
Patent GB-1042387-A (GB)
Title: Heat exchangers
Inventor: MONTGOMERIE GEORGE ALAN
IPC: F28F19/04
Filed: 1964-03-19
Abstract: 1,042,387. Heat exchange surfaces. SERCK TUBES Ltd. Jan. 20, 1965 [March 19, 1964], No. 11620/64. Heading F4S. A heat exchanger plate or tube is provided on one or each of its heat transfer surfaces with a thin coating of polytetrafluorethylene or a similar fluorocarbon resin material. A number of methods of applying the coating are described. Preferably the heat exchange surface is rendered porous by chemical or other means before the resin coating is applied; and subsequent heat treatment may be such that portions of the element surface project through the resin coating. In a tubular heat exchanger, the resin coating may be applied also to the casing containing the tubes.
Patent GB-1497487-A (GB)
Title: Tdm switching network
IPC: H04Q11/04
Filed: 1976-03-23
Abstract: 1497487 Automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 23 March 1976 [27 March 1975] 11624/76 Heading H4K In a T.D.M. switching network comprising a plurality of parallel switching network sections, a control system attempts to select a plurality of paths one through each section for each call and a switching circuit at the output end of the network selects one of said chosen paths for establishing the call. As shown the network comprises two time space time branches B1, B2 having corresponding inlets commoned at network inlets E0 to E1 5 and corresponding outlets selectively connectable by a switching circuit 3 to corresponding network outlets S0 to S15. The switching circuit which is under the control of the network control computer 1 and clock 2 is divided for security reasons into two sections CA1, CC1 and CA2, CC2 arranged to respectively switch even and odd numbered outlets of the branches to the network outlets. Each section of the switching circuit comprises an electronic gate array CA1, CA2 controlled at CC1, CC2 by flip-flops in turn controlled by core store the elements of which are addressed and set in accordance with the network sections to be used for the individual calls and read out cyclically to the control flip-flops by the clock 2 which via a distributer sequential enables the respective flipflops. An inverter in the enabling path of the flipflops is manually switched into circuit in one switching circuit section and out of circuit in the other switching circuit section on installation to cause the two sections to operate in opposite phases of the system clock.
Patent GB-1020438-A (GB)
Title: Data-processing system
IPC: G06F11/14
Filed: 1964-03-19
Abstract: 1,020,438. Checking digital circuits. SOC. NOUVELLE D'ELECTRONIQUE ET DE LA RADIO-INDUSTRIE. March 19, 1964 [March 20, 1963], No. 11657/64. Heading G4A. In an arrangement for checking the performance of a logical circuit comprising AND and OR gates, the input variables are applied to the circuit to produce a first result. The functions of the AND or OR gates are interchanged and the complements of the input variables applied to produce a second result, a signal indicating the correct operation of the logical circuit being produced if the first and second results are mutually complementary. As shown in Fig. 1, input binary variables A, B, C, D are applied via a gate 31 opened by a signal on a lead 41 to a logical circuit 30 comprising AND and OR gates to produce an output result S which is stored at 36. Instead of the signal on lead 41, a signal on lead 411 is now operative to cause a signal on a lead 25<SP>1</SP> to be applied to the logical circuit 30 thereby causing the AND gates thereof to operate as OR gates, and the OR gates as AND gates. The input variables are complemented at 32 and applied via a gate 31<SP>1</SP> to the logical circuit 30 which produces an output result which is inverted at 39 and compared at 38 with the previously formed result S. If the comparator 38 detects equality, a signal V is emitted indicating that the circuit 30 is operating correctly, the signal V causing a utilization circuit 37 to receive the result stored at 36. The alternative AND-OR gates in the circuit 30 may comprise selectively enabled AND and OR gates (Figs. 4, 5, not shown). In a modification (Fig. 2, not shown)), the register 10 provides true and complementary outputs so that a separate inversion is unnecessary and the comparison of the output results of the logical circuit employs two flip-flops, one being changed over after each correct comparison.
Patent GB-1455922-A (GB)
Title: Thread storage feeder for textile machines
IPC: D04B15/48
Filed: 1974-03-15
Abstract: 1455922 Temporary thread store; knitting machines IRO AB 15 March 1974 [16 March 1973] 11720/74 Headings D1C and D1J A thread storage feeder, for use with a textile machine able to drive one or more such feeders and having a circuit for controlling the machine drive, comprises a thread storage member, winding drive means by which thread can be wound upon the member to form a thread reservoir, a thread guide movable into two positions for operation of the feeder in a "positive feed" mode and an "intermittent thread withdrawal" mode, sensing means for sensing the size of the thread reservoir and for disconnecting the winding drive means during "intermittent thread withdrawal" when a max. reservoir has been attained, a switch settable in a condition I for "intermittent thread withdrawal" and in a condition II for "positive feed", and circuit means responsive to the sensing means when the switch is in condition II to provide a signal for de-energising the machine drive when the reservoir (a) exceeds a max. value (b) falls below a min. value or (c) exceeds a max. or falls below a min. value. "Positive feed" means that the textile machine withdraws thread at constant speed, and "intermittent thread withdrawal" means that the machine withdraws thread on demand. The device may comprise a thread storage drum 2 machine driven by belt 3 via clutch 4, and a ring 5 spring-biased to urge thread reservoir 6 downwards and connected to switch 7. The switch is connected either via condition I of switch 11 to control clutch 4, or via condition II of switch 11 and textile machine relay 21 to control the textile machine drive. For a positive feed, guide 9 is moved to guide withdrawn thread and to bring switch 11 to condition II. If reservoir 6 exceeds a given max., ring 5 closes switch 7 to stop the textile machine. For an intermittent thread supply guide 9 is removed from the withdrawn thread and moves switch 11 to condition I. When reservoir 6 exceeds a max., ring 5 closes switch 7 to discharge clutch 4. Alternatively, switch 7 may be closed by rung 5 when reservoir 6 falls below a min. In condition II of switch 11 the closed switch 7 is connected to stop drive 20, and in condition I closed switch 7 is connected to engage clutch 4. Further ring 5 may be connected to two switches so that in condition II it closes a first switch when a max. reservoir is exceeded to stop the textile machine, and closes the second switch when a min reservoir is reached. In condition I only the first switch controls clutch 4. The thread is monitored for breakage at the inlet and outlet of the feeder, thread breakage closing switches, e.g. switch 14, to stop the textile machine and switch on indicator light 15. Belt 3 and clutch 4 may be replaced by an electric motor also controlled by switch 7. The thread may be wound onto and withdrawn from a stationary drum 2.
Patent GB-1095024-A (GB)
Title: Wire twisting machine
IPC: H01B13/02
Filed: 1965-03-19
Abstract: 1,095,024. Wire twisting machines. T. YOSHIDA. March 19, 1965 [March 23, 1964; Aug. 24, 1964 (3)], No. 11822/65. Heading D1T. A wire twisting machine has its supply bobbins 38, Fig. 1 mounted in floating cradles 32, each cradle 32 being surrounded by a flyer 56 around which the drawn off wire is passed such that it is twisted twice for each revolution of the flyer. The twisted wires are then collected together and fed through a die 1.08 to a take-up bobbin 124 in a floating cradle 118. The cradle 118 is surrounded by a flyer 112 and the wires from the die 108 are passed round the flyer 112 before being wound onto the take-up bobbin 124 such that the bunched wires are twisted twice for each revolution of the flyer 112. The cradles 32 and fliers 56 are supported cantilever fashion, and each cradle 32 has a side wall that can be swung away to permit an. empty bobbin to be removed from, and a full bobbin to be placed in, the cradle. The supply bobbin 38 may have electormagnetic brakes, the exciting current of which is increased when the machine is stopped. The take-up bobbin 124 may be driven by a torque motor the resistance of which is increased when the machine is stopped to reduce the torque developed. There is a capstan between the delivery apparatus and the winding apparatus and a further capstan within the floating frame, the capstans being selectively or simultaneously used.
Patent GB-1157056-A (GB)
Title: Apparatus for Measuring Liquid Density
Inventor: LEBEDEV VADIM NIKOLAEVICH
IPC: G01N9/22
Filed: 1967-03-14
Abstract: 1,157,056. Measuring density. OPYTNO-KONSTRUKTORSKOE BYURO AVTOMATIKI. March 14, 1967, No.11910/67. Heading G1S. Apparatus for determining the density of a fluid there is provided a hollow float 2 provided with bellows 24, 25 at either end, and containing a standard fluid, the float being connected through a lever 5 to a pneumatic converter 6 and enclosed by a casing for the test fluid which is scaled at both ends by plates 10 and has inlet headers 3 and an outlet header 4. In use, the float 2 is standardized by balancing the lever arm 5 with weights 44. The density of the flowing fluid is measured by determining the changes in height of the float 2, which are transmitted through lever 5 and linkage 31, 37, 38 to control the position of a flap governing the outflow signal from a nozzle, which is amplified at 46. A compensation mechanism through bellows 34 balances the variations in weight of the float 2.