baber/WOPTO huggingface dataset:
Patent GB-1475035-A (GB)
Title: Method of consolidating coal and/or rock in mines
IPC: E21D9/00
Filed: 1975-02-03
Abstract: 1475035 Consolidating earth SAARBERGWERKE AG 3 Feb 1975 [4 Feb 1974] 4529/75 Heading E1F A method of consolidating rock and/or coal in mines comprises suspending bentonite in a magnesium chloride solution having a specific gravity above 1.22, stabilizing the suspension by the addition of highly dispersed silica, mixing the stabilized suspension with magnesium oxide, and injecting the mixture in the rock and/or coal. The silica is used in a quantity of 0.1 to 6.0 parts by weight per 100 parts by weight of magnesium chloride solution.
Patent GB-375240-A (GB)
Title: Improvements in a coil piece for deep sea signalling cables
IPC: H02G15/14
Filed: 1932-02-16
Abstract: 375,240. Cables. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., M³lheim, Cologne, Germany. Feb. 16, 1932, No. 4575. Convention date, June 12, 1931. [Class 36.] A coil piece for deep-sea signalling cables comprises a pressure-resisting coil housing a formed with a guide into which the pressure protecting tube b projects and in which it can slide longitudinally. An abutment ring c prevents the tube b from striking against the coils. The lead sheath d is continued over the tube b into the guide of the coil housing, and is there replaced by a metal ring e adapted to hold together the wires of the tube b. The coil housing and cable ends are surrounded by a running-on member f which may be strengthened by a spiral g. A collar h on the coil casing holds the member f in place. Over the member f is placed a lead sheath i soldered at the ends of the coil piece to the cable sheath d. Armouring k, interwoven and bedded in jute, covers the sheath d and is spliced to the cable armouring m. A protecting armour n of short pitch completes the cable.
Patent GB-105104-A (GB)
Title: Improvements in the Electric Ignition of Explosives.
Inventor: MILLER ROBERT
IPC: F42D1/045
Filed: 1916-03-29
Abstract: 105,104. Miller, R. March 29, 1916. Systems, electric.-Two or more sparking-plugs 2, 4 are connected together through condensers 6, one of the plugs being connected to the source of high-pressure electricity.
Patent GB-1022766-A (GB)
Title: Frequency-stabilised oscillator
IPC: H03L7/113
Filed: 1963-02-05
Abstract: 1,022,766. Automatic frequency control systems. STANDARD TELEPHONE & CABLES Ltd. Feb. 5, 1963 [Feb. 5, 1962], No. 4629/63. Heading H3A. An oscillator 1 is frequency stabilized by the conjoint outputs of a frequency discriminator 3 and two phase discriminators 14 having different time constant output circuits, to which also a reference frequency equal to the frequency discriminator centre frequency f 0  is applied. Wideband capture but fine frequency control is therefore obtained. The oscillator frequency is first transposed down by selected multiples of decade frequency dividers 21-23 actuated in cascade from a stable reference oscillator 19 and by a final low frequency oscillator 26 to a frequency f about equal to the discriminator centre frequency f 0 , f 0  being also a multiple of the lowest frequency step of the divider; and the input to the frequency discriminator 3 applied also to a phase discriminator 14 together with frequency f 0  obtained from the last stage 23 of the reference frequency divider by frequency multiplication at 24 and frequency conversion by oscillator 26. (The oscillator 26 has a frequency a multiple of the lowest frequency step of the divider but, although not stable, its effect balances out in the two inputs to the phase discriminator). The discriminator 14 (Fig. 4) comprises a pair of phase discriminators one of whose outputs amplified at 12, if long time constant, is added to a short time constant output (developed in one phase discriminator 14 in push-pull across resistors r a ) and to the frequency discriminator output amplified at 7. A search, i.e. scanning oscillation is generated by feedback at 36 when the oscillator 1 is not correctly tuned, but when approximately tuned by discriminator 3 oscillations pass a filter 33 and threshold amplifier 34 and a bi-stable circuit is actuated to act on gate 32 (Fig. 3) and prevent further input to the frequency discriminator 3 so that the search oscillation consequently ceases. By a switch C decimal frequency steps may be added due to an interpolation oscillator 30 whose frequency is determined by an input i which also correspondingly alters the discriminator tuning by acting on a variable reactance element.
Patent GB-307195-A (GB)
Title: Improvements in or relating to devices for testing the brakes of automobiles
IPC: G01L5/28
Filed: 1928-02-14
Abstract: 307,195. Cowdrey, C. F. Feb. 14, 1928. Dynamometers; systems for testing motor vehicles.-A machine for testing the brakes of an automobile comprises, in combination, means for supporting a wheel and adapted to turn the wheel under brake resistance, a travelling carriage for the supporting means adapted to move along a predetermined path while a wheel rests upon said means, and a motor unit for driving said means provided with an indicator for indicating the force to turn the wheel against the brake resistance. A raised platform formed of braced angle irons supports in bearings rollers each pair of which is adapted in turn to support a vehicle wheel. The roller 18 of a rear pair 18, 19 and the roller 31 of a forward pair 30, 31 are flanged to prevent lateral displacement of the automobile. The rollers of each pair are connected by chain and sprocket gear and one of the shafts is squared to receive the coupling of a driving device. Each front pair of rollers 30, 31 is mounted in a carriage 32 running on rollers 36 and provided with transverse stops 42 to prevent the automobile running off the supporting rollers in a forward direction. When the vehicle is run up the incline 15 on to the rollers, the carriage and front rollers move to accommodate the support to the length of the vehicle. The carriage 32 has an extensible runway 44 overlapping the flanged guide 28 and is provided with locking means to clamp it to the frame. The motor unit, which is mounted on castors, is brought up and coupled to the shaft of the driving roller of the wheel to be tested and the brake placed in the " on " position, the pedal being held in one position by a claw device. The force to turn the wheel under brake resistance is indicated on a. gauge on the driving unit. In a modification, the rollers are mounted in a floor and one unit provided at the front supplies any of the driving rollers with power through longitudinal side shafts, gears, and couplings. In this form provision is made for running the automobile off at the front end of the platform.
Patent GB-495860-A (GB)
Title: Improvements in or relating to folding rollers for sheet folding machines
IPC: B65H45/12
Filed: 1937-02-16
Abstract: 495,860. Paper - - folding machines. SPIESS, G. Feb. 16, 1937, No. 4672. Void. Convention date, Feb. 27, 1936. [Class 100 (i)] Folding-rollers for sheet-folding machines of the blade or buckling type are formed with an inner part W of metal, silicate earths, hardrubber, wood, glass, paper, or printers'-roller composition and an outer removable covering Z of textile material such as silk, artificial silk, cotton, linen, wool, Woolstra or that material known under the Registered Trade Mark " Vistra." The covering is secured over the entire surface by adhesive or is connected to the roller body at its ends only.
Patent GB-227656-A (GB)
Title: Improvements in means for suspending and drawing curtains
IPC: A47H13/10
Filed: 1924-02-23
Abstract: 227,656. Johnson, R. C. Feb. 23, 1924. Curtains, suspending.-The rail a for curtain runners is spaced from the window &c. frame by distance pieces f, each provided with a recess k to receive the operating cord l and prevent it rising when under tension, the recess permitting the passage therethrough of the pivoted arm or extension n of the master runner to which the cord is attached. The top and bottom edges of the rail a may be bevelled.
Patent GB-675664-A (GB)
Title: Improvements in or relating to a sprayer or atomizer
IPC: B05B9/08
Filed: 1949-02-21
Abstract: 675,664. Reciprocating pumps. BURGESS VIBROCRAFTERS, Inc. Feb. 21, 1949 [Feb. 26, 1948], No. 4710/49. Class 102 (i) A reciprocating pump for spraying liquids comprises a sleeve 14 mounted on the cover 4 of a container and containing a cylinder 22 having an inlet port 35, controlled by a piston 29, and a delivery valve 25 ; a nozzle 28 is held in position by a nut 28a. The piston is reciprocated by an armature 10 of an electromagnet 8 and a spring 32 urges the piston during the suction stroke which is opposed by a second spring 19b adjustable by a knob 20 to vary the stroke of the piston and the efficiency of operation of the pump. Leakage past the piston returns to the liquid container through a pipe 39.
Patent GB-1210563-A (GB)
Title: Data conversion circuit
IPC: H04L27/10
Filed: 1968-01-30
Abstract: 1,210,563. Digital transmission systems. XEROX CORP. 30 Jan., 1968 [2 Feb., 1967], No. 4722/68. Heading H4P. A communication system of the kind in which data is transmitted by a plurality of multilevel signals includes a circuit operable in three different modes (transmit, receive and testing) comprising means for converting binary data into multi-level data signals while operating in the transmit mode, means for converting multilevel data information into binary signals when operating in the receive mode, and means for generating pseudo-random test pattern signals when in the testing mode. Transmit.-Fig. 1A shows one form of the transmitting arrangement used, the binary input data being shifted serially through a shift register 101, Fig. 1A, which briefly stores successive groups of the data and a second register 103 simultaneously stores, in parallel, the bits stored in the first shift register. The control clock signals for register 103 are at half the rate of those applied to shift register 101 so that after each successive group of two bits is stored in register 101 they are entered in register 103. Gates in unit 105 recognise the bit combinations 00, 01, 10 and 11 and the gate signals control a modulator to produce a different frequency, amplitude or phase for each of these combinations. Transmission is therefore at half the frequency of the original signals. In the form of Fig. 1B the outputs from the register 103 are combined, one of the "1" outputs being doubled, and the results added so that a signal having values 0, 1, 2 or 3 is produced to control a modulator to give corresponding output. Receive.-The multi-level signal is demodulated and applied to a circuit 201, Fig. 2. containing three slicers detecting the three ranges of the signal as indicated. The output is converted to a Gray code and outputs are produced on two lines representing the appropriate bit pairs. These are entered in pairs into a shiftregister by the dibit clock and the contents shifted out at the double speed clock rate to reproduce the original data. Testing.-The means for generating a pseudorandom test pattern of binary bits comprises a further shift register the last two stages of which are gated together to provide an input for the first stage. The test pattern repeats after 2<SP>n-1</SP> steps, n being the number of stages in the shift register. A gate is provided to detect an all zero condition and inject a "1" in the last stage. The test pattern is applied to the register prior to the encoder. The circuit (Fig. 4, not shown) combines the three circuits for the three different functions and enabling signals determine the mode of operation.
Patent GB-829757-A (GB)
Title: Improvements in and relating to permutation locks
Inventor: STANTON WILLIAM HENRY
IPC: E05B37/08
Filed: 1957-02-12
Abstract: 829,757. Permutation locks. CHUBB & SON Ltd., [formerly CHUBB & SONS LOCK & SAFE CO. Ltd.]. Nov. 21, 1957 [Feb. 12, 1957], No. 4804/57. Class 44 In a permutation lock of the kind incorporating a bolt-operating lever provided with a fence, a driver engageable by the fence lever for moving the bolt, and control wheels adapted when in unique angular settings to allow engagement of the fence lever with the driver, but in all other angular settings to obstruct the fence and thus prevent engagement, the lock comprises means supplementary to the fence adapted to prevent or reduce the possibility of rotation of the control wheels when the fence is in contact with these wheels. As shown, a known form of lock in which slots 10 in control wheels 6 and a slot in a driver 4 are aligned to permit a fence lever 8 to withdraw a bolt 7, an auxiliary fence lever 11 is provided and includes a fence 12 which contacts the peripheries of the wheels 6 at points angularly spaced from the fence 9 carried by the lever 8. Both levers are spring-loaded towards the wheels and a pin 16 projecting from the lever 11 ensures that this lever is lifted by the lever 8 when the latter is lifted away from the driver 4 and the wheels 6. Both fence levers are pivoted intermediate the ends of a lever 17 one end of which is pivotally mounted on the lock casing and the upper end of which engages in a slot in the bolt 7 whereby a relatively small rotary movement of the driver 4 results in a relatively larger movement of the bolt. The pivotal connection of the fence levers with the lever 17 may be selected to give any desired degree of amplification, or reduction ratio between the movement of the driver and the bolt. A lever 23 is pivoted to the inner surface of the front wall of the lock case and dogs the bolt in its locked position if a rear plate of the lock case is removed. The plate is also provided with a hooked catch adapted to engage an abutment of the casing when the plate is secured thereto, but which prevents removal of the plate until the slots 10 are aligned under an arm which normally supports the lever 23. Specifications 735,148, 748,360 and 815,664 are referred to.
Patent GB-537936-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H01J61/42
Filed: 1940-03-14
Abstract: 537,936. Discharge lamps; luminescent materials. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. March 14, 1940, No. 4811. [Class 39 (i)] A glow discharge lamp for operation in conjunction with luminescent material has a filling of krypton with or without a small quantity of mercury. The filling pressure of the krypton is between 1 and 30 mm. of mercury, preferably 5 mm.; and the pressure of the mercury vapour does not exceed 1 mm. The electrodes, which may consist of helices with the coils intertwined, may be activated with an alkali metal such as barium or caesium. The luminescent coating may be zinc silicate, zincberyllium silicate, calcium tungstate or cadmium borate. A light approximating to white light is stated to be obtained with a mixture of magnesium tungstate and cadmium phosphate. The luminescent material may be applied to the interior of the bulb or to surfaces supported inside the bulb, or outside if the bulb is of quartz.
Patent GB-524972-A (GB)
Title: Improvements relating to braking mechanism
IPC: F16D65/22
Filed: 1939-02-15
Abstract: 524,972. Hydraulic brakes. PRATT, J. H., MANLEY, G. E., and GIRLING, A. H. G. Feb. 15, 1939, No. 4921. [Class 103 (i)] In brake mechanism wherein the brakes can be operated independently by hydraulic and mechanical means, the arrangement is such that if due to wear of the friction elements the available stroke of the pedal or handlever is insufficient to effect a brake application by either means alone, application can be effected by continued operation of both means. According to Fig. 2, a wedge member 8 arranged to expand the shoes of an internal brake through rollers 10 and plungers 9 is formed as a piston in a cylinder 7 and a second piston 12 is operable by a strut 18 and lever 14. The space between the pistons is connected to a pedal operated master cylinder by operation of which the brake is thus applied, the piston 12 abutting on the end of the cylinder as shown. The brake can also be operated independently by a hand lever through the lever 14 and piston 12 by engagement of telescoping projections 12a, 8b on the parts 12, 8. If due to wear of the shoes, the normal available stroke of the pedal or hand lever is insufficient alone to effect an application, the piston 8 cari first be moved by the hand lever and the necessary further movement be then given to it by the pedal through the hydraulic pressure. An arrangement is shown in which the pedal and master cylinder operates the four wheel brakes of a vehicle while only the rear brakes are provided with the device above described for operation also by the hand lever. In a modification, Fig. 5, the hand lever is connected by a cable 22 and a headed pin 22a to a cylinder 24 and to a piston 23 which has an extension 23a connected by a three-armed lever 25 to the pair of rear wheel brakes. In hydraulic operation, liquid forced through the port 24a into the space between the piston 23 and the cylinder end 29 moves the piston 23 to operate the lever 25, the cylinder abutting on a stop 28 and the piston moving over the pin 22a. When the cable 22 is operated by the hand lever, the cylinder as well as the piston is moved to the left, the lever 25 being operated by engagement of the pin 22a with the piston.
Patent GB-925258-A (GB)
Title: Improvements in and relating to screw threaded coupling members pivotally interconnected thereby
Inventor: SMITH ANTHONY JAMES COTTER
IPC: B26B13/28
Filed: 1961-02-10
Abstract: 925,258. Bolts. WILKINSON SWORD Ltd., and H. B. RANDOLPH. Feb. 8, 1962 [Feb. 10, 1961], No. 5011/61. Class 89 (1). A bolt coupling for interconnecting the blades of shears &c., comprises a bolt 11 with a screwthread 11a on its shank, a nut 12 to receive the bolt and a lock-washer 13 keyed to the shank 12a of the nut 12 and adapted to engage the head 11d of the bolt. A pair of internal teeth 13a in the washer engage recesses 12f in the shank 12a, which enters an annular groove 11g in the head 11d. Slots 11e in the head 11d co-operate with teeth 13b on the washer, there being one more tooth 13b than the number of slots 11e or a multiple of that number, so that when the blades are clamped between the-head 12d of the nut 12 and the washer 13 or an additional washer, one of the teeth 13b may be turned over into a slot 11e. A screw-driver slot 12e is provided in the head 12d.
Patent GB-1409021-A (GB)
Title: Sound-damping composition comprising bitumen
IPC: C08L61/18
Filed: 1973-02-01
Abstract: 1409021 Metal-resin laminates COAL INDUSTRY (PATENTS) Ltd 1 Feb 1974 [1 Feb 1973] 5025/73 Heading B5N [Also in Division C3] A vibration-damping laminate comprises a pad formed from a composition comprising 0À5-40% by weight of a polynuclear aromatic hydrocarbon/formaldehyde resin, 5-40% by weight of a bitumen compatible therewith, and 50-80% by weight of a solid filler material, but not containing a rubber bonded to a metal sheet. The metal sheet may be of steel, and the pad may be bonded to the metal sheet by means of a pressure-sensitive adhesive and/or by heatsealing. The composition may include styrene polymers and plasticizers.
Patent GB-193846-A (GB)
Title: Improvements in or relating to head lights
IPC: F21V11/00
Filed: 1923-02-21
Abstract: 193,846. Scherer, B. Feb. 21, 1922, [Convention date]. Lantern shutters.-The Specification as open to inspection under Sect. 91 (3) (a) comprises a device for preventing dazzle in vehicle headlights in which strips 11 with their under-surfaces silvered to form reflectors are supported at their outer ends in notches 10 in a circular frame 9 fitted on the front of the head-light, the inner ends of the strips being supported in recesses 12 in a rack 13 which is adapted to be moved vertically by the driver and so incline the strips and direct the light rays downwardly. In a modification, the ends of the strips are bent downwardly at right-angles to rest on the next lower strip, the lowest strip being mounted on pivots which are adapted to be rotated to incline all the strips. This subject-matter does not appear in the Specification as accepted.
Patent GB-1003223-A (GB)
Title: Semiconductor or dielectric device
IPC: H01G4/10
Filed: 1962-02-09
Abstract: A semi-conductor or dielectric device is formed by heating a substrate of Ti, Ta, Al, Zr, Hf or Nb in an atmosphere of oxygen or oxygen containing an inert gas to form an oxide film, the heating being effected by conduction of the heat from the inside of the metal, e.g. by induction or resistance heating or by heating the side of the metal removed from the oxygen atmosphere. A dielectric oxide film is formed on Ti, Ta or Zr by resistance heating to 1300  DEG C. in an oxygen atmosphere and condensers are formed by baking a Ag electrode on to the oxide film. Alternatively the metal may first be anodized prior to oxidizing by resistance heating.  Semi-conductors are formed by heating Ti, Ta or Zr to 1000  DEG C. and coating the oxide layer with a silver electrode to form a rectifier in co-operation with a Ti electrode. In a further embodiment Pt is coated with Ti, Ta, Al, Zr, Hf or Nb by soldering, vacuum deposition or sputtering and then heated to form the oxide film.
Patent GB-979529-A (GB)
Title: Improvements in or relating to induction heating apparatus
Inventor: TAMM RICHARD FELIX
IPC: H05B6/40
Filed: 1962-02-09
Abstract: 979,529. Induction heating. CONTINENTAL CAN CO. Inc. Feb. 9, 1962, No. 5136/62. Heading H5H. Apparatus for severing connecting tabs T between adjacent conductive metal bodies B, e.g. tubular cans, comprises feed and guide means for moving the bodies along a predetermined path, and induction heating means C positioned along the path for inducing currents into the bodies passing along the path, there being a maximum concentration of current in the connecting tabs to effect the concentrated heating thereof, thereby to cause the tab areas rapidly to reach a softening or melting temperature at which severing thereof can be effected. Two sets of feed and guide means in the form of rollers are provided, one on each side of the heating coil, and these are run at different rates so as to tension the connecting tabs. The alternating current passing through the heating coil C is preferably timed so as to be present only when a connecting tab is adjacent to the V-shaped positions 12 thereof. Specification 979,530 is referred to.
Patent GB-715321-A (GB)
Title: Improvements in or relating to apparatus for teaching music
IPC: G10G1/02
Filed: 1951-03-02
Abstract: 715,321. Teaching music. FIELD, E. E. G. March 2, 1951 [March 4, 1950], No. 5148/51. Class 88 (2). A device for teaching music comprises a slide rule graduated in semi-tones of equal width. The base is marked with the notes of the piano keyboard from F 2  to G' and two slides are marked with the notes of the tonic solfa from f 2  (fah) to s' (soh). Three parallel guides 3, 4, 5 mounted on a board 1 support two slides 9, 10. The top slide 9 shows both major and minor scales and names such as the tonic. The slides can be reversed to show the relative values of the musical intervals and the numbers of sharps and flats in the major keys. The ranges of the bass, alto, tenor and soprano voices are indicated on the board. An additional guide 28 may be provided to enable the notes of chords such as the dominant 7th to be picked out in any scale by means of slides 30, Fig. 5. Different chords may be shown on opposite sides of the same slide.
Patent GB-172888-A (GB)
Title: Improvements relating to machines for perforating paper and the like
IPC: B26F1/22
Filed: 1921-02-15
Abstract: 172,888. Forgrove Machinery Co., Ltd., and Grover, F. Feb. 15, 1921. Rotary perforating machines.-Relates to machines in which a rotary perforating-cutter cooperates with a grooved roller having a greater peripheral velocity so as to give a draw-cut, and consists in the provision of an adjustable flat V- shaped or other cutter set out of the axial line of the roller. As shown in Fig. 1, the cutter 8 is positioned below the axial line of the cutter shaft and roller, is flat, V-shaped, and mounted by jointed arms 6, 7 upon a disc 5 carried by a shaft 4 to which the grooved roller 2 is geared. The shape of the cutter 8 can be arranged to give a triangular perforation as shown in Fig. 5, or a semicircular or other perforation.