baber/WOPTO huggingface dataset:
Patent GB-411389-A (GB)
Title: Improvements in change-speed gears for bicycles and the like
IPC: B62M25/00
Filed: 1933-12-11
Abstract: 411,389. Variable - speed gearing. HJELM, O. A., 27, Skepparegatan, Stockholm. Dec. 11, 1933, No. 34838. [Class 80 (ii).] In a change-speed gear for bicycles and the like in which the gear ratio is changed by adjusting the chain wheel 1 in its own plane relatively to a toothed wheel device 3 axially displaceable but non-rotatable on the crankshaft 6, a member 10 supporting the chain wheel is carried directly by a rotary adjustable eccentric, cam disc, or like member 17, gear guiding members 21 being guided in recesses 20 in a stationary frame plate 14, or in the eccentric, and oblique grooves 19 to cause their axial movement being provided in the inner rim of the eccentric or on the outside of the frame plate 14, bearing casing 5, or like stationary member, respectively. The form shown in Fig. 2 has the recesses 20 in the frame plate 14, and the grooves 19 in the eccentric. As shown, there are three gear-guiding pins 21 each having a projection 24 engaging one of the grooves 19 and a slot 22 engaging a flanged ring 23 on the toothed wheel device 3 so as to move the latter inwardly when they are themselves moved inwardly by the cam grooves 19 due to the rotation of the eccentric. As shown, a single toothed wheel 3 engages one of two toothed rims 7, 8 on the chain wheel, the rim 8 of a diameter equal to the wheel 3 engaging the said wheel for direct drive. More than two toothed rims may be provided or a single rim may selectively engage several stepped toothed wheels rigidly connected. The member 10 is pivoted to the frame plate 14 and has two internal projections engaged by the eccentric 17. The latter, which is operated by a wire or the like from the handle bars, is retained on the hub of the plate 14 by a plate 26.
Patent GB-1427604-A (GB)
Title: Phasemeter
IPC: G01R25/00
Filed: 1973-07-23
Abstract: 1427604 Phase detectors COMMISSARIAT A L'ENERGIE ATOMIQUE 23 July 1973 [3 Aug 1972] 34972/73 Heading H3A A phase detector comprises: a ramp generator 13 controlled by a reference signal V ref ; a logic circuit 14 controlled by the reference signal and the signal whose phase is to be compared V # ; samplers 15, 16 controlled by outputs S4, S4a from the logic circuit, to sample the ramp; a sign changing circuit 17 which passes the output from sampler 16 either directly or inverted depending on a further output S5 from the logic circuit; and a gate 18 connected to the output of the circuit 17 which is inhibited by a signal from threshold detector 19 whenever the amplitude of the signal V #  is below a threshold value. The signals V ref  and V #  are squared in respective shapers 11, 12 to produce signals S1, S2 which are applied as inputs to a D-type flip-flop in logic circuit 14 to set the flip-flop in one state when S1 leads S2, and in the other state when S2 leads S1, Figs. 4a1, 4a2 (not shown). The flip-flop produces two complementary outputs, one of which is utilized as the signal S5 controlling the sign changer, and the other of which is fed together with the signal S2 to an EXCLUSIVE-OR circuit, Fig. 4b (not shown), also included in logic circuit 14. The EXCLUSIVE-OR circuit produces two complementary outputs S4, S4a which control the samplers 15, 16. The output from sampler 16 is an analogue signal S7 whose magnitude depends on the phase difference, and this is fed to sign changer 17 to produce a positive or negative output S8, depending on the sign of S5, and hence on whether the signal V #  leads or lags V ref . This signal is passed to output S10 via the gate 18 whenever gate 18 is enabled by signal S9 from threshold detector 19.
Patent GB-1432775-A (GB)
Title: Telephone exchange apparatus
IPC: H04Q3/62
Filed: 1972-07-26
Abstract: 1432775 Automatic exchange systems GENERAL ELECTRIC CO Ltd 6 July 1973 [26 July 1972] 35042/72 Heading H4K In a telephone exchange comprising a plurality of cascade-connected switching stages the subscribers of the exchange are connected to one side of a plurality of first stage units and incoming and outgoing junctions are connected to one side of a plurality of final stage units and the exchange is adapted to effect a connection between an incoming and an outgoing junction by the operation of only two crosspoint switches, these switches being situated in the final stage units. Cross-bar switches are preferably employed but reed relays may be substituted therefor. The exchange is a PABX and the incoming/ outgoing junctions 14, 15 are tie lines. In normal operation a calling extension is connected through to a register 10 via an A stage, a B stage and a C stage, C3 or C4. On receipt of the dialled digits a common control in known manner completes a connection either to a further extension using a C1 or C2 stage in place of the C3 or C4 stage or to an external outgoing line 13. An incoming external call on line 14 is connected to an operator who by dialling the appropriate digits completes a connection to the required extension. Alternatively the extension may be obtained by. direct inward dialling. However it is also possible for the operator to complete a connection to an outgoing line 13 by dialling appropriate digits. The common control then operates two crosspoints in the appropriate C3 or C4 stage. Where the stage C3 or C4 employ cross-bar switches this is achieved by operating two select magnets and one bridge magnet. In a modification to the trunking shown some of the paths between the B and C3, C4 stages may be multipled to both the latter switch units and the external lines may not be multipled to both these switch units as shown. A connection between two external lines then involves one cross-point in each of two C stages.
Patent GB-1083296-A (GB)
Title: The braking of electric motors
Inventor: OLLIFFE DAVID WILLIAM
IPC: H02K11/00
Filed: 1965-08-17
Abstract: 1,083,296. Control of motors; magnetic switches. MSE HOLDINGS Ltd. July 29, 1966 [Aug. 17, 1965], No. 35326/65. Headings H2B and H2J. As the speed of an electric centrifuge motor decreases to a predetermined value during reverse-current braking operation, centrifugal arm 4 carrying magnetic member 7 approaches reed contact unit 9 sufficiently to open contacts 11. Relay 13 is then de-energized to stop the braking action before the motor actually reverses its direction of rotation. The contact unit 9 is biased to its closed position by magnet 14. The centrifugal arm 4 is associated with arm 5 carrying a counterweight 8.
Patent GB-282833-A (GB)
Title: A method of cooling exhaust turbo blowers for diesel engines
IPC: F01D3/04
Filed: 1927-12-30
Abstract: 282,833. Akt.-Ges. Brown, Boveri, et Cie. Dec. 30, 1920, [Convention date]. Fan apparatus; cooling. - Exhaust driven turbo-blowers associated with Diesel engines are cooled by waste air drawn from the space containing the balance piston of the blower. An arrangement is shown for the cooling of the bearing a of the gas turbine b by air from the chamber of the balance piston c at the end of the blower d.
Patent GB-487931-A (GB)
Title: Improvements in springing systems for upholstered furniture
IPC: A47C23/00
Filed: 1937-12-21
Abstract: 487,931. Spring upholstery. STRAUB, C. Dec. 21, 1937, No. 35388. Convention date, Dec. 21, 1936. [Class 52 (iv)] Bent wire springs looped to carry transversely arranged resilient rods 7, 8, 9, 10 are supported by rigid rods 4, 5 carried by brackets 19, 20 on the frame bars 2. The terminal loops of the springs are secured to further resilient or rigid rods 3, 6 and the springs are in two alternating sets, one passing from the bar 3 to the bars 4, 8, 9, 10 and 6 and the other to the bars 7, 8, 9, 5 and 6.
Patent GB-397355-A (GB)
Title: Improvements relating to the assemblage of the operative parts with the frame of electricity measuring apparatus
IPC: G01R11/36
Filed: 1932-12-14
Abstract: 397,355. Supply meters. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. Dec. 14, 1932, No. 35416. Convention date, Dec. 24, 1931. [Class 37.] The operative parts of a meter are joined to the supporting frame by jet-casting. As shown applied to an induction motor meter, the pressure magnet 2, current magnet 5, and brake magnet 11 are fastened to the frame 1 by means of blocks 12, 13, 22 of jet-cast material which engage the magnets like clamps and are themselves held by rivet-like extensions 14. Small notches may be made in the cores 2, 5 in order that they may be held in the blocks 12, 13 without relative motion. The block 12 also holds the phase-regulating plate 15. A block 17 jet-cast on to a transverse member 1<11> of the frame 1 and passing through a hole therein holds the counting-gear 9 and the upper bearing for the spindle 7. The lower bearing consists of a cylindrical member held by a spring in an aperture in a jet-cast block .19 extending through a cross member 1<111> of the frame 1. The operative parts of the meter are placed in correct relative position in a mould having hollow spaces which are subsequently filled with jet-cast material to form the supporting blocks. The jet-cast material may be metal or insulating material such as artificial resin. Adjustment of the brake magnet is effected by means of a magnetic shunt in the form of a spring 24, adjustable by a screw (not shown), and held in the jet-cast block 22. Adjustable wing-pieces 26 are provided for adjusting the reluctance of the shunt path to the pressure core. Phase compensation is effected by a wing-piece 27 adjustable in the slot 4 of the pressure magnet.
Patent GB-1332387-A (GB)
Title: Communication switching systems
IPC: H04Q11/06
Filed: 1971-07-29
Abstract: 1332387 Automatic exchange equipment WESTERN ELECTRIC CO Inc 29 July 1971 [30 July 1970] 35725/71 Heading H4K Crosstalk within the switching network of an exchange is reduced by making the transmission rate for signals transmitted across the network less than the transmission rate of the signals on TDM lines connected to stores associated with the network. Preferably the information is transmitted in PCM form and comprises seven bits with one supervisory bit. In the figure showing one side of a switching network the TDM line 5 is equipped for 4 wire operation and has 24 channels (time slots) carrying information at a rate of 1544 megabits/sec. Associated with each line are 24 PCM trunks 8-1 to 8-24 each of which transmits the information contained in one time slot of line 5, after it has been stored in A shift register 109. When the required connection is made through network 15, register 109 is outpulsed at the cross-office rate of 82À7 megabits/sec., which speed is slow enough to eliminate crosstalk between the connections in the switching network and the received information stored in a B shift register, Fig. 2 (not shown) which is similar to the E shift register 127. Bi-stable circuits U, V and W work with counter 132 to transfer the information to the F shift register 125 at the TDM line rate of 1544 megabits/sec. and the register 125 is then outpulsed at this rate on to line 5. The information that is stored in register 109 is preceeded by an initial bit so that 9 bits are transmitted across the office. On arrival at the E register the initial bit is used to set a bistable U so that only 8 bits are transmitted to the F register and thence on to line 5. The switching network preferably comprises cross-bar switches.
Patent GB-803059-A (GB)
Title: 2-methyl-2-sec-butyl-1, 3-propanediol dicarbamate
IPC: C07C271/06
Filed: 1956-11-22
Abstract: The invention comprises 2-methyl-2-sec.-butyl - 1 : 3 - propanediol di - carbamate, which is used therapeutically as a hypnotic.  The above compound may be prepared by reacting 2-methyl - 2 - sec. - butyl - 1 : 3 - propanediol with phosgene to form the di-chlorocarbonate followed by treatment with anhydrous or aqueous ammonia to form the di-carbamate, or by subjecting the diol to ester interchange with a low molecular weight urethane.  In an example 2 - methyl - 2 - sec. - butyl - 1 : 3 - propanediol is heated with ethyl urethane in toluene in the presence of aluminium isopropoxide to give 2-methyl-2-sec.-butyl-1 : 3-propanediol di-carbamate.  2 - Methyl - 2 - sec. - butyl - 1 : 3 - propanediol used as a starting material is produced by reducing the corresponding disubstituted malonic ester, for example by lithium aluminium hydride.ALSO:Sleep-inducing therapeutic compositions comprise 2-methyl-2-sec.-butyl-1 : 3-propanediol dicarbamate, which may be formed into pills, tablets or capsules for oral administration or dissolved in a solvent such as a mixture of polyethylene glycol and water to give a solution suitable for injection or for use as an enema.
Patent GB-1259750-A (GB)
Title: Rotor for a fluid flow machine
Inventor: WILKINSON WILFRED HENRY
IPC: F01D5/22
Filed: 1970-07-23
Abstract: 1,259,750. Turbomachine rotors. ROLLSROYCE Ltd. July 23, 1970, No.35745/70. Heading F1T. Vibration of turbine or like rotor blades having platforms 14 spaced from respective root portions 11 by radially extending shanks is damped by flexible channel-shaped sheet metal members 16 disposed between adjacent shanks. Each member 16 is held in contact with the rotor disc by being trapped between the roots 11 of adjacent blades and is provided with an elongated plate 20 having a central portion 21 secured to the base 22 of the member 16. Each plate 20 has a bulbous portion 23 extending generally circumferentially from its opposite ends to engage the adjacent blade shanks. Thus in operation the centrifugal loads on members 16 cause forces in a generally circumferential direction to be transmitted to the shanks by bulbous portions 23 to effect vibration damping. In a modification, Fig. 6 (not shown), the channel-shaped member 16 is integrally connected to elongated plate 20 by a radial rib (24).
Patent GB-912724-A (GB)
Title: Improvements in or relating to gas-heated water heaters
IPC: F24H1/14
Filed: 1960-10-19
Abstract: 912,724. Water heaters. JUNKERS & CO. G.m.b.H. Oct. 19, 1960 [Oct. 20, 1959], No. 35793/60. Class 64 (1). In a " balanced flue " gas-fired water heater comprising a combustion chamber 16 located within a gas-light casing 14 and having an outlet flue 17 which leads to the outside atmosphere through an aperture 12 in a wall 11, the aperture constituting the air inlet for the gas burner 27, the possibility of the freezing of the water supplied to the heater when the outside temperature is below 0 C. with consequent damage to the water fittings as the cold air is drawn in is avoided by arranging for the air to be heated slightly. In the form shown a thermostat bulb 30 is provided in the aperture 12 and communicates with a gas valve 33 fitted in a branch pipe extending upwardly from the pipe 34 supplying the heater pilot-jet. The branch pipe has a row of holes and terminates in a burner jet. When the air temperature falls to, say, 0 C., the valve is opened and the pilot-jet ignites the gas issuing from the holes and then the burner jet to warm the incoming air. In a modification the burner may be ignited catalytically or by a flash tube or the thermostat may operate a switch to energize an electric heater disposed in the aperture 12.
Patent GB-840060-A (GB)
Title: A method for the preparation of fruit acidified gelatine capable of being stored
IPC: A23L29/281
Filed: 1957-11-18
Abstract: Into gelatine flavoured with tartaric acid there is incorporated a calcium sequestering agent, such as a polymer phosphoric acid or its water-soluble salts, to prevent the precipitation of calcium tartrates caused by small amounts of calcium compounds in hard water or milk subsequently added to the gelatine.
Patent GB-488268-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N5/272
Filed: 1936-12-31
Abstract: 488,268. Television transmitters. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 31, 1936, No. 35805. Convention date, Dec. 31, 1935. [Class 40 (iii)] Signals from only one of a plurality of picture-resolving devices 1, 6 are supplied to a common signalling channel 4 at any instant, in that amplifiers A, B, which couple the analyzers 1, 6 to the signalling channel, are rendered alternately operative by keying- signals of rectangular wave form, which are generated by a further analyzer 9 or 46 scanning a predetermined controlling pattern 11, 47. The received picture thus has one scene inset to the other. For changing from one scene to another, the analyzer 9 has a circle of holes and scans a controlling pattern such as that shown in Fig. 1a which is moved continuously opposite to the scanning disc. Alternatively a film such as shown in Fig. 1b may be used, moved intermittently and scanned by a spirally apertured scanning disc. The analyzer 9 may be an iconoscope. The system may be modified by using only one picture resolving device, the keying-signals then controlling the gain of the amplifier to produce the effect of spot-lighting in the received picture. Alternatively, the keying- signals may be added to the picture-signal to control the shading of the picture. Specifications 417,282 and 458,161 are referred to. According to the Specification as open to inspection under Sect. 91, the keying-signals are generated by multivibrators in synchronism with the deflection of the cathode rays, and are passed to control the amplifiers through phase-changers. This subject-matter does not appear in the Specification as accepted.
Patent GB-907771-A (GB)
Title: Synthetic polymeric sewing thread packages
Inventor: VOGEL HANUS PETER
IPC: D06M15/01
Filed: 1957-11-18
Abstract: A wound package of sewing thread made wholly or partially of continuous filaments of synthetic polymeric material, e.g. polyamide, ployester and acrylic filaments, capable of being unwound in a substantially untensioned state without twisting on itself, is produced by coating the thread with a solution or dispersion of a water-insoluble heat-curable synthetic resinous organic compound, i.e. a compound which is capable of forming cross linkages and is thereby hardened or toughened upon heating, drying the coating to remove the solvent or dispersant at a temperature insufficient to cure the coating material and subsequently or simultaneously with the drying step winding the thread to produce the package, the thread being maintained in a substantially unstretched state during the application and drying of the coating.  Threads comprising a core of continuous filaments with staple fibres spun around the core may be treated. Solutions or dispersions containing 3-20% by weight of nylon, polystyrene or polyvinyl butyral may be used for coating the threads. Specification 701,202 is referred to.
Patent GB-1517947-A (GB)
Title: Low cost method of fabricating carbon composites
IPC: D01F9/22
Filed: 1975-09-01
Abstract: 1517947 Carbon composites DUCOMMUN Inc 1 Sept 1975 [29 Oct 1974] 35918/75 Heading C1A A carbon composite product is produced by compressing a multiplicity of thermoplastic fibres at 300-410‹F into a substrate of known volume to crimp and lightly fuse together adjacent fibres at their cross-over points and the shaped substrate is then pyrolysed to form a carbon fibrous substrate which is to be densified by maintaining the fibrous substrate in the presence of a carbonaceous gas at 1900-2300‹F to deposit carbon interstitially in the substrate. The shaped carbon fibrous substrate may be heated to 2900-4350‹F prior to densification. The thermoplastic fibres are preferably oxidized stabilized polyacrylonitrile (PAN) fibres in the form of randomly oriented individual fibres or interwoven to form a fabric or felt.
Patent GB-450509-A (GB)
Title: Nesting device for paper containers
IPC: B65G57/16
Filed: 1935-12-30
Abstract: 450,509. Nesting paper containers. JAGENBERG WERKE AKT.-GES., 107, Himmelgeisterstrasse, D³sseldorf, Germany. Dec. 30, 1935, No. 35966. Convention date, Jan. 26. [Class 18] A nesting device for paper containers which is equipped with a counter or counting mechanism operated by the containers entering the pile, is characterized in that the stop A, which gives support to the lower end of the pile, is moved in the longitudinal direction of the pile by the counting mechanism. The counting mechanism comprises a spring biassed ratchet device 13, 15 operated by an electromagnet 10 energized through contact fingers 8, 9 when a feeler 7 is moved by the passage of a container blown through a tube 1 towards the spring guides F, f. The stop A, preferably carried by an endless belt 33, and furnished with a flexible facing, is spring urged into contact with the underside of a base plate 30 and moves through a slot therein to carry the nest of containers. On reaching the angle bar 36 the pile is delivered by hand or by another conveyer. A number of stops A may be provided on a single conveyer chain, the piles of nested containers being guided to a table from which they are removed by a plunger.
Patent GB-1113975-A (GB)
Title: A digital electric decoding apparatus
Inventor: PKORNY ZDENEK
Filed: 1965-08-23
Abstract: 1,113,975. Electric digital calculator. VYZKUMNY USTAV MATEMATICKYCH STROJU. 23 Aug., 1965, No. 36064/65. Heading G4A. A system for decoding digital data comprises an accumulator 12, a gating unit 4 connected to a source of constants to be added to the accumulator, gate means 5 controlling the entry of said constants into the accumulator and means 3 serially reading data into the accumulator during read-out of the constants when the gate means determine that read-out is appropriate. An adder 11 is used to add the constants on to the data to be decoded. In the embodiment described the data to be decoded is applied to channel 30 of an input storage unit, an AND gate 36 being enabled by pulses applied to input 31. A delay element 38 stores pulse recirculated via AND gate 37 enabled by pulses from input 32. Constants appear at inputs 41, 42, 43 to AND gates 46, 47, 48 enabled by inputs 35, 34, 33 respectively the constants adding 0011 for a number 0001, adding 0110 for 0010 and 1000 and adding 1100 for 0100 to the contents of a register 12. The numbers are passed to the logic unit 11 which serves to add the appropriate constants to the number recirculated via register 12. The conversion for a decimal takes four cycles (Fig. 6, not shown) for each power of 10 the complete number being recirculated each cycle. At the appropriate point in each cycle a pulse is passed via AND gate 5 to cause the appropriate correction factor to be added.
Patent GB-411393-A (GB)
Title: Improvements in or relating to the manufacture of locally reinforced tubular knitted goods
IPC: D04B7/04
Filed: 1933-12-22
Abstract: 411,393. Knitting. KRAUTKOPF, S., 111, Rosenbergstrasse, Stuttgart, Germany. Dec. 22, 1933, No. 36081. [Class 74 (ii).] A tubular fabric is produced by reciprocation, on a parallel machine, and is locally reinforced at 2 without cutting the additional yarn. Reinforcements may be worked by any group of needles in either or both beds. The ends of the web are united at 3 by the suture structure shown. At one end of each bed there are suture-forming needles with long butts. The cams are set, for sutureknitting, so as to raise only these end needles to clearing position. This is done by a rotary cam 17 which brings a lever 16 into the paths of steps 12 or 13 on a tappet 11. A slide 8 on which the tappet is mounted is connected to the needlecams, which thus clear, first, the end needles only, then all the needles and so on. The end needles can also be lifted by hand. Fashioning is conveniently done at the ends of the beds remote from the suture, the reinforcements being knitted, in this case, at the ends adjacent the suture, using two splicing guides. Means for picking up the guides one at a time is described.
Patent GB-1483512-A (GB)
Title: Nematic liquid crystal compositions
IPC: C09K19/58
Filed: 1974-08-16
Abstract: 1483512 Controlling light MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 16 Aug 1976 [20 Aug 1973] 36265/74 Heading G2F [Also in Division C4] A varially birefringent electro-optic nematic liquid crystal cell is disposed between a circular polarizer and a mirror for intensity modulation.