baber/WOPTO huggingface dataset:
Patent GB-921663-A (GB)
Title: Improvements in or relating to voice-frequency line signalling systems
Inventor: WRIGHT ESMOND PHILIP GOODWIN
IPC: H04L27/10
Filed: 1960-06-24
Abstract: 921,663. Voice frequency; frequency-shift signalling. STANDARD TELEPHONES & CABLES Ltd. June 23, 1961 [June 24, 1960], No. 22222/60. Class 40 (3). In a voice frequency line signalling system information is passed between terminal equipments by frequency shift signals. The line attenuates the signals to differing degrees dependent on their frequency, and means is provided at at least one of the terminal equipments for attenuating, relative to signals for which the line attenuation is relatively high, signals for which the line attenuation is relatively low. The system described includes error detection by means of redundancy check and error correction by repetition. During normal operation, information passes to a unit 11 which produces frequency shift signals. These signals are adjusted in power level by unit 12, such that signals suffering higher loss on the line are sent at a higher level, and are fed to line via a high pass filter. At the receiving station the signals pass through filter 15 to unit 25, where their levels are further adjusted, and to unit 16 where they are converted to binary code prior to processing in unit 17. Unit 17 derives the redundancy of the received signals which is sent to the transmitter by frequency shift, but using frequencies far removed from those of the forward direction signals. The received redundancy signals pass via low-pass filter 21 to redundancy check unit 24. This unit compares the received signal with the corresponding transmitted signal, stored in unit 23, and in the event of non-equality changes switch 10 so that the stored signals are repeated. Signals in the forward direction are sent at a much faster rate than those simultaneously sent in the backward direction, and hence the level of the forward signals can be higher than that of the backward signals without exceeding the maximum permitted power in the channel.
Patent GB-282134-A (GB)
Title: Improvement in machines for handling loose materials
IPC: E02F9/00
Filed: 1926-09-09
Abstract: 282,134. Peale, R., Davies, W. S., and Wallace, W. S. Sept 9, 1926. Clutches, friction ; reversing gearing.-The traction elements 15 at each side of a self-propelled machine 1 are driven independently from the same motor 2 through either forward or reverse driving-connections for manoeuvring the machine. The clutches for this purpose may be controlled from a distant point through four solenoids 80 on the machine, or by hand-levers. The motor 2 drives two inter-meshing spur wheels 16. 27 so that shafts 17, 28 are continuously rotated in opposite directions, and each end of each shaft may be connected by a friction clutch C, Fig. 6, to the shaft 98 of a corresponding driving sprocket 93<a>.
Patent GB-295631-A (GB)
Title: An improved can-end lining machine
IPC: B21D51/46
Filed: 1928-08-01
Abstract: 295,631. Erb, G. C. Aug. 15, 1927, [Convention date]. Sealing wax and the like, applying. - Relates to can end lining machines and consists in feeding can-ends singly from the lower end of a magazine 15 by a reciprocating feed bar 18 controlled by an oscillating lever 26 to a rotatable drum 40 and delivering them therefrom in an inverted position. Each face of the drum 40 is shaped to accommodate a canend and is provided with an electro-magnetic core 48 for holding can-ends in position. These cores are energized through lateral rings on the drum which contact with brushes carrying current. Lining compound is applied to the canends by a reciprocating die 60 which operates in a receptacle 63 and means are provided to prevent the operation of the die when a can-end is not in position to receive the compound. The receptacle 63 may be removed but is normally replenished from an inverted bottle 111 which maintains the liquid at the desired level. The drum 40 has a step-by-step movement, and when the lined can-ends reach the top or inverted position they are removed by a blade 112 and deposited in a conveyer 13. In operation the machine is controlled by a hand-lever 150 and is automatic in action provided the magazine 15 and receptable 63 are kept replenished.
Patent GB-405680-A (GB)
Title: Improvements in hydraulic variable speed gearing
IPC: F16H39/32
Filed: 1932-08-10
Abstract: 405,680. Hydraulic transmission of power. DONES, F. T., 79, Cranmer Street, Long Eaton, Derbyshire. Aug. 10, 1932, No. 22354. [Class 69 (ii).] Hydraulic variable-speed gearing comprises rotors 39, 40, Fig. 1, on the driving and driven shafts 50, 45, the rotors having radially - movable blades 44, the ends of which move in contact with the interior of cylinders 17, 18 in which the rotors are eccentrically mounted ; the exterior of the rotors has grooves receiving the side walls. 42 of the cylinders. The cylinders are fixed to a tube 11 disposed in a jacket 12, itself surrounded by a casing 35 having tubes 36, 38 dipping into a sump 8 in an outer casing 5, the tube 36 leads to the inlets of the cylinders the said inlets being controlled by a rotary valve 26, the cylinders 18 discharge to the cylinders 17 and exhaust therefrom returns to the sump through the pipe 38. In order to secure reversal of the driven shaft when desired, the inlets and outlets of the cylinders 17 are controlled by a slide valve 31, Fig. 11, with ports 32 and recessed portions 33. The driving and driven shafts may be connected by a slidable clutch member 56, and the ends of the shafts have discs 60, 61 within housings 58, 59 having passages 62, 63 leading to the sump 8.
Patent GB-172264-A (GB)
Title: Improvements relating to the connection of side cars to motor-cycles
IPC: B62K27/08
Filed: 1920-08-31
Abstract: 172,264. Gordon, T. Aug. 31, 1920. Side-car attachments. -The front connecting- member between a sidecar and a motor-cycle comprises a leaf spring a anchored at its base j to the side-car chassis m and secured at its upper end b to the jaws of a bracket c which is hinged, as at e, to a stem f fixed to the front upper portion or head g of the cycle frame.
Patent GB-1341992-A (GB)
Title: Attrition resistant cracking catalyst and a method for preparing the same
IPC: B01J21/16
Filed: 1971-04-19
Abstract: 1341992 Catalyst composition NALCO CHEMICAL CO 19 April 1971 [26 Feb 1970] 22404/71 Heading B1E An attrition resistant cracking catalyst comprising 0 to 8% alkali metal silicate, 0 to 40% alumina, 1 to 25% zeolite, and 17-98% kaolinite clay is formed by: (a) adding a mineral acid (e.g. sulphuric acid) to kaolinite clay in a ratio 100% acid to clay of 0.2-0.6:1; (b) heating for 10mms. to 6hrs. at 60-218‹F; (c) adjusting the temperature to below 90‹F and a content of 1 to 10% wt. clay; (d) adding a 1 to 8% wt. alkali metal silicate solution over a period of 30-60 mms. while vigorously mixing to give a pH of 4.5 to 8.0; (e) adjusting to pH to 6-7 if necessary adding ammonium hydroxide or sodium aluminate; (f) adding 1 to 25% wt. zeolite; (g) filtering and spray drying; (h) washing with water, dilute sulphuric acid or aqueous ammonium hydroxide, sulphate, nitrate, acetate or formate; and (i) drying, e.g. by oven or tunnel drying. Alumina in the form of an aluminium salt of a mineral acid may be added between steps (d) and (e). In the Example the mineral acid is sulphuric acid and the silicate is sodium silicate.
Patent GB-764613-A (GB)
Title: Process for the production of substituted alkyl sulphonic acids or salts thereof
IPC: C07D295/21
Filed: 1954-08-03
Abstract: Organic sulphonic acids or salts thereof, in which the organic residue is interrupted by a CS-group, are obtained by reacting a sultone with an organic mercapto compound, which contains per molecule one or more aliphatic, cycloaliphatic or hydrocarbon residues linked to a CO- or CS- group to the carbon atom of which the mercapto group is directly linked, either directly or through oxygen, sulphur or nitrogen, if necessary in the form of its mercaptide or in the presence of an acid-neutralizing agent. As mercapto-compounds there may be used thioacetic acid, thiopropionic acid, thiobutyric acid, thiobenzoic acid, dithioacetic acid, dithiopropionic acid, dithiobutyric acid, dithiolauric acid, dithiobenzoic acid, 4-chlorodithiobenzoic acid, the ethyl ester of thiocarbonic acid, thiocarbonic acid monomethylamide, methyl-, ethyl-, propyl-, allyl-, butyl-, amyl-, and cetyl-xanthogenates, phenyl-, cresyl-, naphthyl-, 4-chlorophenyl-, and 2,4-dichloro-phenyl-xanthogenates, salts of ethyltrithiocarbonic acid, isobutyltrithiocarbonic acid and phenyltrithiocarbonic acid, and salts of dithiocarbamic acid, N,N - dimethyl - dithiocarbamic acid, N,N - diethyl-dithiocarbamic acid, N,N-pentamethylene-dithiocarbamic acid, N-ethyl-N-phenyl-dithiocarbamic acid, N-phenyl-dithiocarbamic acid, N - naphthyl - 1 - dithiocarbamic acid, N - 4 - chlorophenyl - dithiocarbamic acid, N - phenyl - dithiocarbazoic acid, N,N - dithiocarbazoic acid and ethylene-1,2-bis-dithiocarbamic acid. As sultones there may be used 1,3-propane- or 1,4-butane-sultone, 1,1-dimethyl-1,3-propanesultone, tolylsultone and 1,8-naphthsultone. Examples disclose the preparation of sodium isopropyl - xanthogenic acid - n - butyl ester-o -sulphonate, sodium n-butyl-xanthogenic acid-n-propyl ester-o -sulphonate, sodium N,N-diethyl-dithiocarbamic acid-n-propyl ester-o -sulphonate, sodium N,N - pentamethylene - dithiocarbamic acid-n-propyl-o -sulphonic acid, and the ammonium salt of dithiocarbamic acid-propyl ester-o -sulphonic acid.
Patent GB-206935-A (GB)
Title: Improvements in stays for casement windows and such like
IPC: E05C17/18
Filed: 1922-08-18
Abstract: 206,935. Rankin, W. C. Aug. 18, 1922. Stays. - A stay, shown applied to a casement window, comprises a curved arm 2 pivoted at 7 to a bracket 1 fixed to the window, and passing between lugs 8a, 8<b> on a bracket 3 fixed to the frame so as to take through a slot 22 in the bracket and into a hole 23 drilled in the frame. A third lug 8 on the bracket 3 carries a pin 4 adapted to pass through holes in the lugs 8<a>, 8<b> and in the arm 2 so as to retain the window in any position. A spring surrounding the pin 4 tends to force it into the holes, and a stop 24 on the end of the stay prevents it being wholly withdrawn from the frame. Another set of holes is provided at the opposite side of the lugs 8, 8<a>, 8<b> so that the device is applicable to a left or a right-hand swung window by turning it upside-down.
Patent GB-681328-A (GB)
Title: Centrifugal starting clutch for motor vehicles
IPC: F16D43/10
Filed: 1950-09-14
Abstract: 681,328. Friction clutches. KREIS, F., and S.I.B.A. SOC. ITALIANA BREVETTI AUTOMOBILISTICI AR.L. Sept. 14, 1950 [July 1, 1950], No. 22623/50. Class 80 (ii). A centrifugal clutch for a vehicle comprises two sets of centrifugal weights operated respectively by the driving and driven members. Secured to a cup-shaped flywheel 1 are a number of bolts 2 acting as guides for a movable pressure plate 3. Collars around the bolts contain springs 5 which urge the plate 3 inwardly, such movement being resisted by the wedging action of a ring of centrifugal weights 6 urged inwards by two tie springs and rotatable with the flywheel. Both flanks of the weights 6 have inclined surfaces which co-operate respectively with inclined surfaces on the plate 3 and on a ring 8 secured to the flywheel. Between the flywheel and the plate 3 are two ribs 9, 10 slidably keyed to the driven shaft and provided with clutch linings. The ribs are resiliently separated by the wedging action of a ring of centrifugal weights 16, rotatable with the driven shaft 15, which are provided with two pairs of inclined surfaces and are urged inwards, against a stop ring 20, by a tie spring 17. When the engine has been started the weights 6 at a predetermined low engine speed move outwardly to an extent limited by the change in inclination of the surfaces on the plate 3 and ring 8, to allow the springs 5 to move plate 3, rib 9, weights 16 and rib 10 to cause partial engagement of the clutch, the pressure depending in part on the strength of spring 17. If the vehicle is on the level, i.e. if the resistance to motion is low, this partial engagement at low engine speed is sufficient to rotate the driven shaft 15, whereupon the weights 16 move outwardly to press the ribs 9, 10 apart by centrifugal action. As the engine speed increases the weights 6 continue to move outwardly over the converging and diverging inclined surfaces on the plate 3 and ring 8, causing at first a separation. of the flywheel and plate and finally a closing in allowing complete engagement of the clutch. During the separation period engagement is maintained by the increasing pressure exerted by the weights 16. If the vehicle is being started up an incline, i.e. if resistance to motion is high, the partial clutch engagement at low engine speed is not sufficient to cause rotation of the driven shaft and this is not effected until a higher engine speed corresponding to the complete engagement referred to above. A smooth engagement at this speed is provided by the resilience of the spring 17. The vehicle may be started by towing, when rotation of shaft 15 at a speed a little above idling speed causes the weights 16 to move outwardly and engage the clutch to turn the flywheel. Since the weights 16 disengage above idling speed, sudden stopping of the vehicle does not stall the engine.
Patent GB-615282-A (GB)
Title: Combustion chambers of internal-combustion engines
IPC: F02F1/42
Filed: 1946-07-30
Abstract: 615,282. Cylinders. ALVIS, Ltd., DUNN, W. M., and KINGHAM, C. D. July 30, 1946, No. 22647. [Class 7 (ii)] A combustion chamber 32, which is substantially restricted to a space in a cylinder head detached on the line 16 from the cylinder block, has its centre slightly outside the line of the cylinder bore and the exhaust valve 25 located therein; it is thus almost entirely surrounded by water jackets 13, 33, and higher compression ratios may be used. The sparking-plug is located at 35 coaxially with the valve 25, and the inlet valve is placed in the flat part of the cylinder head closely approached by the piston.
Patent GB-1413256-A (GB)
Title: Water-solubilised antibiotics
IPC: C09K23/00
Filed: 1973-05-14
Abstract: 1413256 Compositions containing antibiotics SPA SOC PRODOTTI ANTIBIOTICI SpA 9 May 1974 [14 May 1973] 22848/73 Heading A5B [Also in Division C2] A pharmaceutical composition comprises a water-soluble pharmaceutical complex comprising partricin and/or partricin methyl ester and at least one anionic and/or cationic surfactant. The compositions may be administered orally, topically, rectally or vaginally.
Patent GB-150181-A (GB)
Title: Improvements in and relating to hose nozzles
IPC: A62C31/00
Filed: 1919-09-17
Abstract: 150,181. Mermack, R. R., and O'Donnell, E. G. Sept. 17, 1919. Splashing-apparatus.-In a spraying-device employing a rounded deflector 20, in order that the stream may be sent in any direction, the deflector is attached to a lever 15 which is pivoted on a band 4 swivelling on the nozzle 1, and held in any position by a hinged bolt 9 and wing-nut 11.
Patent GB-967889-A (GB)
Title: Improvements relating to the filling of reservoirs with liquefied gas
Inventor: ZELLWEGER CONRAD
IPC: F23Q2/52
Filed: 1960-09-07
Abstract: 967,889. Smokers' lighters. LA NATIONALE S.A., and RONSON CORPORATION. Sept. 7. 1960, No. 22858/64. Divided out of 967,437. Heading F4F. The inlet valve of a reservoir of a smoker's lighter comprises a body 2 forming a well, shaped to receive the spout 3 of a refill vessel and a membrane 7 mounted on the reservoir side of an orifice 5 at the bottom of the well and adapted to close the orifice, the closure member 7 having a projection 10 which extends through the orifice to engage the end of the spout 30. When the spout is pushed downwardly it opens the valve and the liquefied gas flows from the spout through the orifice 5 and through some of a ring of ports 9 in the membrane, whilst gas in the reservoir exhausts to atmosphere through the other ports 9, the orifice 5 and a radial groove 12 on the end of the spout. The projection 10 is conical and has a slot or passage 11 directing the liquefied gas laterally towards certain ports 9. The refill vessel may have a valve which is opened by relative movement between the spout and the vessel.
Patent GB-674601-A (GB)
Title: Improvements relating to percussion drills
IPC: E21B10/58
Filed: 1950-09-18
Abstract: 674,601. Percussion drills. HELLEFORS BRUKS AKTIEBOLAG. Sept. 18, 1950 [Sept. 30, 1949], No. 22880/50. Class 124. In a percussion drill in which the crown 1 is secured to, or upset on the end of, the drill bar 2, and is provided with one or more transverse grooves in each of which are brazed two hard metal cutting elements 7, 8 the side surfaces 9-12 of which diverge from the centre towards the periphery of the crown, the end joint 17 (0.2 to 0.5 mm) is considerably thicker than the side joints (0.1 to 0.5 mm) which are considerably thicker than the bottom joints which should be as thin as possible. The divergence angle a is between 4 degrees and 10 degrees, and the total width of the outer ends of the elements constitutes 20 per cent to 30 per cent of the periphery of the crown. The axial flushing passage 4 may terminate at the inner ends of the elements (Fig. 7, not shown), or it may divide into two branches 5, and the outer surface of the crown may be formed with two side flushing channels 6.
Patent GB-168763-A (GB)
Title: Improvements in and relating to egg cases
IPC: B65D85/32
Filed: 1920-08-04
Abstract: 168,763. Jordan, L. Aug. 4, 1920. Contents, viewing; cellular boxes; drawer-and. shell boxes.-An egg-container arranged to permit the eggs to be candled without unpacking, is made from a blank shaped and cut as shown in Fig. 6, which is bent to a cylindrical form as shown in Fig. 3. The bottom is stopped by a disc 15 to which are attached two strips 16 running the whole length of the container and serving as a means for drawing up the disc 15 to facilitate removal of the eggs. The tongues 13 formed by the cuts in the blank are folded in as shown and a disc 20 placed on each pair so that the receptacle is divided into a series of compartments. The openings left by turning in the tongues 13 serve to permit candling. The container is closed by a disc 18 and the ends of the strips 16 are tucked in between the disc and the body. When empty the container may be flattened out. For postal purposes an outer cylindrical jacket 21 may be employed.
Patent GB-185125-A (GB)
Title: A method and device for filling hollow bodies, which are sensitive, especially cavities in natural teeth, with metal
IPC: A61C5/50
Filed: 1922-08-24
Abstract: 185,125. Maurer, J., and Jakobsen, H. F. Aug. 24, 1922. Transformers.-Apparatus for the production of short current impulses for use in stopping teeth with metals, and to other purposes comprises stopping pencils or electrodes 4, 11 detachably held in handles 12, 13 and arranged, in series with a variable resistance 5, rotary interrupter 7 and ammeter 10, in the secondary low tension circuit of a transformer 2, 3 connected to the mains 1. The brush 8 of the motor-driven interrupter 7 is adjustable relatively to the brush 9 so as to vary the duration of each current impulse relatively to the speed of the interrupter. The rotary interrupter may be replaced by an electromagnetically operated hammer interrupter, and in the case of a continuous current supply an interrupter is inserted in the primary circuit of the transformer. Currents of from 30 to 120 amperes at 4 volts are stated to be employed.
Patent GB-1220351-A (GB)
Title: Improvements in disc brakes
Inventor: DEWAR DOUGLAS
IPC: F16D55/00
Filed: 1967-05-18
Abstract: 1,220,351. Disc brakes. DUNLOP CO. Ltd. 15 May, 1968 [18 May, 1967], No. 23114/67. Heading F2E. In a multi-plate disc brake of the kind described in Specification 931,031, loosely fitting tubular spacer-members 17 are provided between the rotor discs 1 and the stator torquetube 4, to prevent possible fouling of the torquetube by the rotor discs due to thermal distortion.
Patent GB-1168716-A (GB)
Title: Process and Mould for the Vulcanisation of Asymmetric Pneumatic Tyres.
IPC: B29D30/06
Filed: 1967-05-19
Abstract: 1,168,716. Moulding tyres. UNIROYAL ENGLEBERT FRANCE. 19 May, 1967 [1 June, 1966], No. 23371/67. Heading B5A. A mould for producing an asymmetric pneumatic tyre from a symmetrical tyre carcass having at least the tread band uncured, comprises opposed mould members 1, 2, a segmental tread moulding ring 3 therebetween, means for radially contracting the ring towards a tyre in the mould so that as the ring contracts, and the members 1, 2 move together axially, its median equatorial plane X-X moves axially relative the median equatorial plane t-t of the members to axially displace at least a portion of the tyre tread band. Frusto-conical wall surfaces S1, S<SP>1</SP>1 of different inclinations of the members 1, 2 engage corresponding surfaces of the tread ring segments. Dovetail portions 7 of the latter engage within grooves 6 in the member 1 which is axially moved towards the stationary member 2 by a fluid motor 13, 14. The ring 3 may be asymmetric with respect to its median plane.
Patent GB-735860-A (GB)
Title: Wireless antennas
IPC: H01Q9/44
Filed: 1951-10-08
Abstract: 735,860. Aerials. POWELL, A. E. Jan. 8, 1953 [Oct. 8, 1951; Aug. 1, 1952], Nos. 23379/51 and 19537/52. Class 40 (7). An aerial primarily intended for the reception of vertically polarized television signals comprises a dipole formed of two in-line quarterwave sections 1, 2 which are connected together by an insulator 3 and supported from one end in an insulating bracket 4 so as to be inclined at 45 degrees to the vertical, and which are arranged with one of the sections supporting two additional parasitic quarter-wave sections 6 and 7. A coaxial cable extends through the lower section 2 and connects with the dipole at the centre. The sections 6 and 7 are prefer- ' ably carried by the lower section and may be supported by and electrically connected to the section by means of an adjustable tubular boss 8 having socket members 9, 10. If the parasitic sections are mounted on the upper section they are insulated therefrom. To permit the attainment of desirable directivity characteristics and discrimination against interference, the parasitic sections are adjusted around and along the dipole, and the whole assembly is rotated in mounting 4. According to alternative features of construction of the parasitic sections: (1) they may be formed as a continuous half-wave element adjustable in a socket offset with respect to the dipole; (2) their angle of inclination to the dipole, normally 90 degrees, may be made adjustable; (3) they may be supported so as to be individually rotatable about the dipole; (4) they may be welded or brazed to the lower section of the dipole or carried in hole therethrough. Fig 2 (not shown) illustrates details of a socket assembly for'joining sections 1 and 2 of the dipole to a clamp and socket assembly for securing the parasitic sections to the lower section of the dipole.
Patent GB-444940-A (GB)
Title: Improvements in and relating to water colours
IPC: C09D5/06
Filed: 1935-08-22
Abstract: A water colour cake is made of porous structure throughout but with a closed, practically non-porous, surface.  This may be accomplished by adding to the mouldable colour mass, a small amount of a loosening-up agent, such as ammonium bicarbonate, potassium persulphate or sodium meta-perborate, and heating the mixture.  Evolved gas renders the body of the cake porous, the heat acting to a greater extent on the superficial layer, and closing it.  Instead of incorporating a loosening-up agent, the colour mass may be heated in a vacuum, the internal structure being thus made porous.