baber/WOPTO huggingface dataset:
Patent GB-617474-A (GB)
Title: Improvements relating to gas-turbine engines
IPC: F02C3/06
Filed: 1946-10-02
Abstract: 617,474. Coupling turbine discs. JUDSON, C. A., READ, J. R., and HUNTER, P. E. Oct. 2, 1946, No. 29429. [Class 80 (ii)] [Also in Groups XXV and XXVI] In a turbine rotor assembly comprising two or more axially-spaced discs, at least one disc is attached to an adjacent disc by a bolt member which passes through a central bore in one disc and engages a threaded part on the other and abutment means are provided to axially space the discs at a radius greater than that of the bolt member. The abutment means may be a separate spacer ring. A second abutment at a smaller radius than the first may also be provided. The turbine disc 20, Fig. 2, is attached to the turbine disc 19 by a bolt member 34 which engages a nut 33 spigoted and bolted to the flange 32 of the disc 19. The discs are spaced axially by a T-shaped member 35 which encircles the bolt member. A spigot 41 on the disc 20 is received in a recess of the nut 33 and abuts against a washer 42 accommodated in the bottom of the recess. This forms a second abutment between the two discs at a smaller radius than the first and by means of selective assembly of the T-shaped member 35 and the washer 42 it is possible to adjust the load between the discs and the member 35. A ring 44 bolted to the flange 46 has an axial flange formed with teeth which engage corresponding teeth on the bolt head 43 to prevent the bolt 34 slacking off. The leg of the T-shaped member 35 is formed at its inner radius with splines 38 which engage corresponding formations on the flanges 32 and 39 of the discs to assist in the transmission of torque from one disc to the other. The peripheral flange of the T-shaped member 35 may be frusto-conical in form and have its outer surface stepped to co-operate with a similarly shaped flange 37 on the sealing diaphragm between the discs. The T-shaped member is located on the nut 33 by lugs 40. The disc 19 is bolted to the shaft 12 and a sleeve 29 on which the bearing 30 is mounted. The sleeve 29 is formed with a flange in which are cut splines which engage splines cut in the flanges 27, 28 of the disc 19 and shaft 12. The bolt member may be hollow and used as a passage for the supply of cooling air as described and claimed in Specification 617,473, [Group XXVI]. According to the Provisional Specification the head of the bolt may be provided with a flange drilled with a circular series of holes which are used in conjunction with a series of holes in a flange of one of the discs to prevent rotation of the bolt. The holes are drilled so as to give a vernier adjustment.
Patent GB-1326661-A (GB)
Title: Resistive loads used in microwave circuits
IPC: H01P1/26
Filed: 1971-06-23
Abstract: 1326661 Dissipative loads THOMSON-CSF 23 June 1971 [7 July 1970] 29522/71 Heading H1W A matched, dissipative termination for a strip line consists of a planar resistive member connecting the line conductor to the ground plane. In its simplest form (Figs. 3, 4, not shown), the termination consists of a resistive deposit on the edge of the substrate of a width equal to the width of the line conductor. In the modification shown, the planar resistive element 4 has a width equal to that of line conductor 2 but is desposited upon a separate substrate 10 in the form of a cube which also carries planar conductive elements 20, 30 on the faces perpendicular to the plane of the element 4. The substrate 10 is located in an aperture 7 formed in the substrate 1 of the strip line. The conductive element 20 is joined to the line conductor 2 by a bridge piece 8 and the element 30 is soldered to a conductive plate 9 forming a ground plane. The inductance of the bridge piece 8 is combined with the capacitances provided by lateral line elements 21, 22 to form a matching #-section.
Patent GB-1520736-A (GB)
Title: Electrical protection circuits
IPC: H02H3/10
Filed: 1975-07-02
Abstract: 1520736 Protective systems H W CHAU 2 July 1975 [3 July 1974] 29532/74 Heading H2K Arrangements are described which both indicate and protect against the occurrence of earth leakages and short circuits. Earth leakage results in a current on line 38 in phase with the secondary voltage of transformer 48. Amplifier 42 can then switch on during a positive half cycle to energize a meter relay 52 and thus, via relay 62, circuit breaker 24 and a latching relay 74 for lamp 78. Short circuit produces a sudden pulse of current through inductor 22 and the resultant induced voltage triggers either a thyristor 96 or another meter relay to energize a lamp relay 108 and the circuit breaker.
Patent GB-742158-A (GB)
Title: Improvements in or relating to sleeving tools
IPC: H01B13/34
Filed: 1953-10-27
Abstract: 742,158. Inserting wire in resilient sleeves. NORTH, A. D. Oct. 27, 1954 [Oct. 27, 1953], No. 29621/53. Class 108 (3). A tool 10 for assembling a rubber sleeve 24 on a wire 25, comprises a tapered element 11 formed with a channel 18. In use, the tip 13 of the element 11 is lubricated by contact with a suitably impregnated pad (not shown) and the sleeve 24 is positioned on the end 12. The tip 13 is then placed in the apex of a V-shaped slot formed in a member 22 rigidly mounted on a bench. The element 11 is pushed axially by hand until the sleeve 24 abuts a shoulder 15. The wire 25 is then inserted through the sleeve by passing it along the channel 18. The portion of the element 11 to the right of the shoulder 15 is formed with two flats 19a inclined at the same angle as the V-shaped slot of member 22. The element 11 is then positioned with the flats 19a resting in the V-shaped slot and is drawn out axially as shown in Fig. 9, from the sleeve 24.
Patent GB-1442981-A (GB)
Title: Textile machine having a control circuit for the temperature of  heating elements in the textile machine
IPC: G05D23/24
Filed: 1973-06-22
Abstract: 1442981 Automatic control of temperature ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 22 June 1973 [17 July 1972] 29672/73 Heading G3R A textile machine includes an automatic control circuit for controlling the temperature of heating elements heating synthetic fibres during processing. The circuit comprises a resistance temperature sensor 1 mounted in a heating element (not shown) and connected in a bridge network 2. Deviation of the sensed temperature from a valve pre-set on the bridge produces an output from the bridge which is amplified at 3 the amplified error signal being applied to an AND gate 4. Upon coincidence of the error signal with synchronizing pulses from a pulse source 5, which pulses are produced at zero voltage crossings of the A.C. supply to the heating element, the AND gate 4 produces a pulse to trigger a switching element 7 (e.g. a triac) via a pulse shaper 6, whereby to control current through the heater element. The sensed temperature value may be displayed on an indicator 8.
Patent GB-749744-A (GB)
Title: Improvements in or relating to trousers
IPC: A41F9/02
Filed: 1951-12-19
Abstract: 749,744. Trouser &c. waistbands. COHEN, H. Dec. 15, 1952 [Dec. 19, 1951], No. 29696/51. Class 141. Trousers 1 are provided with a gusset 2 at each side in the region of a pocket 3. At each side of the garment an extension 9 of the rear waistband portion 5 has a fastening member 10 which engages with a slide 11 sewn to a front portion 6 of the waistband. The invention may be applied to skirts or other garments which incorporate an adjustable waistband.
Patent GB-305495-A (GB)
Title: Fire poker and air pump
IPC: F24B15/00
Filed: 1928-08-20
Abstract: 305,495. Barker, E. Aug. 20, 1928. Pokers. - A pump c is combined with a poker a so that air may be forced through a bore in the stirring end of the poker, which may also be formed witb radial perforations. A spring clip h pivoted on the pump body engages a groove in Lhe handle g of the piston rod when the pump is not to be used.
Patent GB-677702-A (GB)
Title: Means for securing collars to shirts
IPC: A41B3/14
Filed: 1950-12-05
Abstract: 677,702. Shirt collars. BOOKER, L. C. C. Dec. 5, 1950, No. 29785/50. Class 141. A shirt is provided with a loop 5 at the back of the neckband adapted to pass through an aperture 3 formed in the collar 1, or in a tab secured thereto, this aperture being longer vertically than the width of a tie 6 at its middle so that the tie may pass through the loop to hold the collar in position. The loop 5 may comprise a vertical strip secured at its ends or may be formed by two parallel slits in the shirt which, in that case, is preferably reinforced by means of a patch.
Patent GB-504803-A (GB)
Title: Improvements in or relating to the manufacture of articles from hard metal carbides
IPC: B22F3/14
Filed: 1937-11-01
Abstract: 504,803. Obtaining coherent masses from powdered metals; alloys. STEVENS, A. H. (Metal Carbides Corporation) Nov. 1, 1937, No. 29828. [Class 82 (i)] [Also in Groups V, III, XI, and XXII] Articles are formed from alloys of hard metal carbides with metals by heating the material within a mould to a predetermined temperature whereupon the heating is discontinued and pressure is applied. There may be a series of heating and pressing steps. The temperature may be 1500-2500‹ C. and the pressure 1 to 3 tons. The articles formed may be rolls, or roll-sheaths for metal-rolling presses, or bearings, or wire, rod, or pipe-drawing dies, or sandblast nozzles. The carbides may be tungsten, tantalum, titanium, vanadium or molybdenum and the metal may be iron, cobalt or nickel in a proportion of 1 to 60 per cent by weight. The mould may be formed by a graphite or carbon cylinder 1 supported on a base 2 and surrounded by powdered carbon 5 or other insulation and a quartz shield 3 within an electric induction heating coil 6. Plates 10, 14 are placed at the bottom and top of the material which is consolidated by a plunger 15 in a hydraulic or other press. For apertured or tubular articles such as dies, a core 13 is provided and the plates 10, 14 may be shaped as at 11 to produce throated apertures. The plate 14 may have vents 14a. The core may be coated with tantalum or titanium carbide to produce a hardened aperture. In forming rolls, pressure may be applied by a pair of opposed high-speed hydraulic presses 81, 82, Fig. 6, working through plungers 83, 84, bedplates 85, 86 and graphite plungers 87 with moulded endpieces 88. Axles of steel may be cast or welded on the ends of the roll.
Patent GB-849422-A (GB)
Title: Improvements in or relating to receivers for ciphered start-stop telegraph systems
Inventor: CHITTLEBURGH WILLIAM FRANCIS S
IPC: H04L9/00
Filed: 1958-09-18
Abstract: 849,422. Code telegraphy. STANDARD TELEPHONES & CABLES Ltd. Sept. 18, 1958, No. 29854/58. Class 40(3). In a start-stop telegraph system of the type in which the characters are ciphered by being combined with a cipher text advanced character by character as transmission proceeds, the received message being deciphered by use of a similar cipher text advanced in step with that of the transmitter, means are provided for recognizing a false start signal having a duration sufficient to simulate a true start signal and for preventing the stepping of the receiving equipment in response thereto. The system comprises a regenerative repeater using a number of multivibrators and gated and ungated differentiating circuits. On reception of a true or false start signal on the line 51 a reset device RT is released which allows the apparatus to start. A pulse from device RT triggers an astable multivibrator B2 which gives its first pulse after 5 m.sec. and which controls distributers 56, 57. These distributers give pulses at times T5 tc T130 as indicated. Assuming a normal start period of 20 m.sec. and code elements of 20 m.sec. period, at 30 m.sec. after the beginning of the start signal there will be a code element on the line 55 and the store unit 58 will be opened by the pulse T30. This causes the store to be placed in a condition indicative of the code element on the line at T30. Similarly the remaining stores are opened at T50, T70, T90 or T110 to be conditioned by the code elements. After 130 m.sec., pulse T130 closes the reset device which stops the units B2 and thus 56 and 57. On reception of the next start signal the process is repeated but in addition the stores are opened by T25, T45, T65, T85 and T105 to send to the receiver line 52 pulses indicative of the code signal received in the previous cycle. Provision is made to allow the last character of a message to be read out and passed to the receiver without destroying the synchronism of the cypher codes at the transmitter and receiver. In the event of a short start signal, i.e. one lasting less than 5 m.sec., the first pulse from unit B2 will pass through gate unit GC3, which at this time is open as there is now no signal on the line, and triggers unit B3 which in turn causes the reset device RT to stop the working of the apparatus. If a stop signal is not received within 130 m.sec. after the start signal, the pulse T130 will pass through gate unit GC5 to trigger unit B7. This unit actuates an alarm 63 to indicate reception of an unsatisfactory signal. Specifications 843,563 and 849,423 are referred to.
Patent GB-957191-A (GB)
Title: Ceramic material and method of making the same
IPC: C04B35/18
Filed: 1960-08-30
Abstract: Ceramic glass products of high mechanical strength and good electrical properties predominantly composed of synthetic magnesium silicate crystals are formed from a melt comprising MgO (20-50%), SiO2 (20-50%), Al2O3 (5-20%) and a fluxing agent (5-15%) which may be one or more of Na2O, B2O3, K2SiF6 and K2O. After cooling the vitreous mass is first re-heated to 850-900 DEG  C. for 15 minutes to 2 1/2 hours to initiate crystallization then raised to 1050 DEG  C. for 1 to 8 hours to give a homogeneous nitro crystalline mass composed predominantly of synthetic magnesium silicate crystals. Magnesite (MgCO3) kyanite (Al2SiO2) and spinel (MgAlO4) may be used as batch materials.  In forming a seal with metal the metal part is placed in a centrifugal mould and the molten glass poured in.  After centrifuging and cooling, the composite article is subjected to the heat treatment to crystallize the glass. The material is also useful for bonding materials such as alumina, magnesia, silicon carbide, and mica.
Patent GB-233623-A (GB)
Title: Improvements in the construction of concrete structures
IPC: E04B2/84
Filed: 1924-12-13
Abstract: 233,623. Boswell, A. Dec. 13, 1924. Reinforced-concrete walls.-Hollow concrete walls are cast in situ between pre-cast reinforced concrete pillars to which they are tied by means of longitudinal reinforcements 3a in the walls secured at their ends to projecting portions 2a of the pillar reinforcement which is bound by crosswires 2d or'metal cross-plates, to the remaining reinforcements of the pillars. The shutters 4 may be made of light metal such as aluminium with outside ribs slotted to engage over the securing bolts 5. They are further supported by V-shaped clamps 6 formed of channel-section metal and provided with hand-holds 6a. The hollows are formed by removable taper-section cores 7 supported by distance-pieces 7a between the shutters and pieces of slate disposed across the cavities below, and are spaced in alternate courses so as to form series of integral webs 8 which are staggered in relation to each other.
Patent GB-772528-A (GB)
Title: Improvements in or relating to electric coils
Inventor: LENO JOHN ALBERT
IPC: H01F41/04
Filed: 1951-12-21
Abstract: 772,528. Electric coils. STANDARD TELEPHONES & CABLES, Ltd. Nov. 7, 1952 [Dec. 21, 1951], No. 30009/51. Class 35. An electric coil comprises layers of woven insulating material 17, 19 on which spiral conducting tracks 5, 6 have been printed or otherwise deposited, separated by insulating sheets 18 having apertures 14, 16 through which alternately inner and outer ends of the spirals are connected. The sheets 17, 19 may be identically made and alternately reversed so that the spirals are of opposite sense. The spirals are formed of conducting paste deposited on organdie, silk, woven glass, or other woven material, and the conductivity of the track may be increased by the electrodeposition of metals. A plurality of spirals may be made on a single piece of fabric which is subsequently folded, or separate pieces may be used as shown and, if desired, they may be consolidated by heat and/ or pressure before the electrodeposition of the metal. The ends may be secured by soldering, welding, riveting or merely pressure. The insulating sheets may be separated as shown or a continuous sheet suitably folded. The various layers may be stuck together with adhesive to secure the assembled coil, or the insulating layers 18 may be of thermoplastic or partially cured thermosetting material causing adhesion under heat and/or pressure. Specifications 718,811 and 738,575, [both in Group XXXVI], are referred to.
Patent GB-322592-A (GB)
Title: Improvements in or relating to means for regulating the phase displacement in an electric system
IPC: H03H7/20
Filed: 1928-10-18
Abstract: 322,592. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 18, 1928. Phase, changing.-The current phase in an alternating-current circuit supplied by a source 2 is regulated by including in the circuit a reactive impedance, such as a condenser C, with resistances in series and in shunt, the two resistances being of opposite sign and the shunt resistance +2R being double the absolute value of the series resistance -R. The negative resistance may comprise a dynatron valve, an arc lamp, &c. In a modification, the condenser C is replaced by an inductance coil, and the short resistance is negative. The Specification shows by mathematical analysis that the total impedance of the circuit is R and the current flowing from the source is therefore independent of the value of the condenser or inductance C. Consequently the value of C can be varied to adjust the current phase without affecting the amplitude.
Patent GB-935722-A (GB)
Title: Improvements in or relating to time-base circuits employing transistors
Inventor: ATTWOOD BRIAN ERNEST
IPC: H03K4/84
Filed: 1961-08-21
Abstract: 935,722. Transistor oscillator circuits. MULLARD Ltd. June 27, 1962 [Aug. 21, 1961; Nov. 2, 1961], Nos. 30157/61 and 39267/61. Class 40 (6). A timebase circuit comprises a transistor output stage having base biasing means, a capacitor-resistor charging network supplying a saw-tooth waveform to the transistor, an oscillator periodically discharging the capacitor, a D.C. connection from the junction of the capacitor and resistor to the base of the transistor and a second D.C. connection including a diode from the oscillator output to the junction. A blocking oscillator T1, including a negative temperature coefficient resistor R2 in its emitter circuit, is coupled via diode D1 to a charging network R13, C2, C13 to periodically discharge the capacitors. The charging network is directly connected via a cathode follower T2 to an output stage T3 having deflection coils Ly coupled to its collector circuit, and a resistor R15 connected in its emitter circuit to provide feedback for linearizing the sawtooth waveform. The feedback is applied to the junction between C2 and C13. At the commencement of the scan T1 is fully conducting and pt B is clamped to a potential determined by the drop across D1, the emittercollector path of T1 and resistor R2, the last mentioned being temperature dependent. The output stage may be modified to provide a stable output voltage and the transistor T1 replaced by a PNPN device. The base of the output transistor may be clamped at the beginning of each stroke to a voltage smaller than that across the discharge circuit and of the same polarity or to one of opposite polarity by including a coil coupled to Lb1, Lb2 in the emitter lead of T1, or in the connection between the collector and diode D1, Figs. 3, 4, Provisional Specification 39267/61 (not shown), which injects a further voltage in series with residual voltage. Specifications 896,024 and 924,260 are referred to.
Patent GB-884928-A (GB)
Title: Improvements in magnetic recorders
IPC: G11B15/10
Filed: 1960-09-01
Abstract: 884,928. Controlling magnetic recorders. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 1, 1960 [Sept. 4, 1959], No. 30187/60. Class 40 (2). In a magnetic recorder, the recording/playback amplifier is switched for microphone and/or gramophone input by a switch rotatable about a shaft 8 having a transmission member 10 which locks push buttons 1 controlling the recorder by means of a locking bar 4.
Patent GB-743197-A (GB)
Title: Catalytic lighter
IPC: F23Q2/30
Filed: 1952-12-01
Abstract: 743,197. Catalytic lighters. KRATZENBERGER, K. G. Dec. 1, 1952 [Nov. 29, 1951], No. 30356/52. Class 75(3). In a catalytic lighter having a fuel container 1 the inner surface of the walls of which are lined with fuel absorbent material 7 in contact with a filling of fuel absorbent material 2 located within the container 1 so as to leave a hollow space 3 in which is located a catalytic device 4, 5, 6 formed by a flat metal frame 4 supporting platinum wires 5, 6 within the hollow space 3 and movable means 10 to admit air to such hollow space 3, the frame 4 has a width equal to the inner diameter of the lining 7 for fitting with the side edges into the lining 7 so as to be clamped between opposite sides of the lining 7 without additional fastening means. The container 1 holding fuel impregnated fillings 2 and lined at 7 with blotting paper or a textile material has air openings 8 in its walls controlled by a sleeve 11. The sleeve 11 may be biased to the closed position by a spring 12 or it may form part of a cap 10 which is removed for ignition of the lighter. The lower end of the container 1 is covered by a cap 9. The lighter may be arranged to open by a spring.
Patent GB-488077-A (GB)
Title: Improvements in moulds or closing devices for socket pipe joints to be filled in with molten material
IPC: F16L21/03
Filed: 1937-11-05
Abstract: 488,077. Casting pipe joints. FLUCKIGER, H. Nov. 5, 1937, No. 30370. Convention date, Nov. 5, 1936. [Class 83 (i)] [Also in Group XXVIII] A mould for filling a spigot-and-socket pipe joint with asphalt, lead, &c. comprises an open rubber ring 4, Fig. 1, the ends 5 of which are outwardly bent to form a pouring hole. The ring is applied to the spigot 1 and pressed against the end of the socket, whereupon its two ends are drawn together by the engagement of a link 7 connected to a straining lever 6 on one end with a rack 8 on the other end. The outer side of the link 7 is offset and adapted to press the ring ends 5 on to the spigot, and both the straining member 6 and the rack 8 are provided on their outer edges with stiffening walls 10 which reach almost to the inner edge of the ring 4. The ring is preferably embraced by a steel band 12 secured by screws 11 and capable of being displaced relatively thereto. In a modification, Fig. 6, the inner side of the ring is provided with a rebate 15 having an asbestos &c. lining, and the pouring hole 14 is formed by recessing the ends of the ring above the said rebate.
Patent GB-617662-A (GB)
Title: Arrangement in vices
IPC: B25B1/08
Filed: 1946-10-11
Abstract: 617,662. Vices &c. NECK, C. G. Oct. 11, 1946, No. 30435. Convention date, Oct. 13, 1945. [Class 61 (ii)] A vice &c. comprising a sliding jaw 2 movable along a guide bar 7 and locked in adjusted position by means of a split slide 15 moving with the jaw 2 and encircling the guide bar 7 and having spaced upper ends 16 engaging a cam-shaped hole in a hand lever 17 swinging of which after adjusting the jaw 2 first locks the slide 15 on the guide bar 7 and then by its cam-shaped end 18 gives the jaw a final grip has the sliding jaw 2 provided with a tubular boss 11 guided on the bar 7 and supported also by bars 5 extending from the fixed jaw 1 and connected by a cross bar 6. A metal plate 21 with bent-over sides sliding along the bars 5 is located under the lever and has an aperture through which the slide limbs 16 extend with sufficient play for the final grip movement, an upstanding flange 22 at the front of the plate being secured to the jaw 2 by screws 23. Specification 578,140 is referred to.