baber/WOPTO huggingface dataset:
Patent GB-432534-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H1/38
Filed: 1933-10-23
Abstract: 432,534. High tension switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts- Ges.; 2, Friedrich Karl-Ufer, Berlin.) Oct. 23, 1933, No. 29319. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 23, 1934]. [Class 38 (v)] The movable contact pin g of a gas-blast switch is reduced in diameter at the part h which engages the stationary contact-member. The latter is of annular form and is composed of several segments a held together by a garter spring b.
Patent GB-221121-A (GB)
Title: Improvements in devices for producing local anaesthesia
IPC: A61M16/10
Filed: 1923-11-21
Abstract: 221,121. Levi, J. Nov. 21, 1923. No Patent granted (Sealing fee not paid). Respiratory appliances.-Relates to an apparatus for supplying ether or like vapour by direct inhalation to the nostrils to produce local anµsthesia for dental operations. The appliance consists of a storage chamber a<1> for the anµsthetic, an air inlet a<3> to this chamber, and an outlet to an evaporating-chamber a containing cotton wool or the like. This latter chamber can be put in communication with extension tubes d, adapted for insertion into the nostrils, by means of a rotatable valve-plug c having ports c', c<2> which allow the patient to breathe through the appliance or direct from the atmosphere as required. A clip g is provided for attachment of the device to a head band worn by the patient, and a neck a<2> between the chambers enables a reclining position to be adopted by the patient without flooding the evaporating chamber.
Patent GB-1517743-A (GB)
Title: Apparatus for controlling the transverse position of a fabric strip
IPC: B29D30/30
Filed: 1975-07-14
Abstract: 1517743 Guiding webs UNIROYAL Inc 14 July 1975 [1 Aug 1974] 29408/75 Heading B8R A web, e.g. of tyre building fabric, is guided transversely by rollers mounted on carriages which are urged towards each other simultaneously so that the rollers are urged into contact with opposite side edges of the web. In a first embodiment, the web is guided in a vertical plane between pairs of freely rotatable rollers lla, 11b, 25c, 25d, &c., Fig. 1, whilst rollers 37c, 37d, 39c, 39d &e., on carriages 17, 19 guide the web transversely. The carriages, slidably mounted on shafts 13, 15, are interconnected by linkage 45, 47, 49, 51 and are urged towards each other by a counterweight 61. In a second embodiment, Fig. 4, the web 203 is guided horizontally on roller balls 111 and the roller carriages 121, 123 are biased together via springs, e.g. 161. Additional overhead rollers, e,g, 184 prevent the web from riding up and a magnetic web brake associated with a transverse cutting device, is provided.
Patent GB-1011639-A (GB)
Title: Integral nuclear reactor
Inventor: KNIGHTS HERBERT CHILVERS
IPC: G21C1/00
Filed: 1963-07-25
Abstract: 1,011,639. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 2, 1964 [July 25, 1963], No. 29614/63. Drawings to Specification. Heading G6C. In a marine integral reactor, the pressure vessel which contains the reactor core, the heat exchanger and a primary coolant circuit, is enclosed in a containment vessel which retains leakage fission products from the core. The containment vessel is provided with a removable top cap so that the reactor may be lifted out of the vessel. The coolant piping is connected to the pressure vessel by flanges which may be uncoupled through the top cap. Lead shielding surrounds the pressure and containment vessels and a further water shield is interposed between the two vessels.
Patent GB-745953-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J29/74
Filed: 1953-10-27
Abstract: 745,953. Cathode-ray tubes. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. Oct. 27, 1953 [Oct. 28, 1952], No. 29653/53. Class 39 (1). To reduce trapezium and pin-cushion distortions irrespective of whether the deflection voltages are symmetrical or not, the second deflecting plates 7 are made of one or more segments of conical surfaces producing a field rotationally symmetrical about an axis perpendicular to the centre of deflection 11 of the first plates 6, but the boundary line 14 of the inner edge of inner segment 8 may be centred on an axis different from the axis 11. The essential conditions are (a) the centre of curvature of the final screen surface is nearer cathode than 11; (b) the axis of symmetry 12 of second deflecting field is further from cathode than 11; (c) the axis of curvature of 14 is chosen to reduce distortion, normally by making it coincide with 11 but, if there is no apertured diaphragm between plates 7 and screen surface, by shifting it nearer the screen surface.
Patent GB-336772-A (GB)
Title: Improvements in devices for balancing end thrust in centrifugal pumps
IPC: F04D29/04
Filed: 1929-10-01
Abstract: 336,772. Harland Engineering Co., Ltd., and Warburton, F. G. Oct. 1, 1929. Balancing moving parts; casings. - A multistage centrifugal pump is provided with a plurality of balancing discs such as 4, 9 each located in its own chamber 5, 10 and co-operating with a face 3, 8 thereof to form the leakage clearances through which the balancing fluid flows in series. Plugs 7 may be removed for inspection purposes.
Patent GB-483542-A (GB)
Title: An improved process for dry cleaning
IPC: D06F58/30
Filed: 1936-10-12
Abstract: In the process of dry-cleaning clothes with an inflammable hydrocarbon solvent, the clothes are dried by removing the bulk of the solvent mechanically and then agitating the clothes in a current of air heated to a temperature not exceeding the flash point of the solvent.  The clothes are then submitted to air heated to a higher temperature, and finally with cool air.  Using a hydrocarbon, e.g. hydrogenated naphthalenes or petroleum distillates, of boiling range 350 to 420 DEG  F., and of flash point of 140 DEG  F., the first stage is effected at 135 DEG  F. for 10 minutes and then at 250 DEG F.  Hydrocarbons having flash points above or below work-room temperatures may be used.  In the latter case the air is cooled below workroom temperature.  Suitable apparatus for this process is described in Specification 483,469.
Patent GB-862308-A (GB)
Title: Installation for use by workmen in servicing the exterior of a large building
IPC: E04G3/34
Filed: 1958-09-17
Abstract: 862,308. Cradles &c. for workmen. TAYLOR & SONS (BRIERLEY HILL) Ltd., S., and DEVONPORT, J. Sept. 4, 1959 (Sept. 17, 1958], No. 29702/59. Class 20(2) A cradle 13 for workmen is suspended by falls 12 from a slewing boom 7 on a bogey 3 running on rails 1 on top of a building, the bogey being moved along the track and the cradle raised and lowered on the falls by electric motors 26, 18 respectively, controlled from the cradle and the boom 7 slewed about a vertical axis by worm gear 24. The motor 26 drives a winch 25 round which is wound a cable 28 the ends of which are fixed at the ends of the track. The falls 12 are led over two pulleys on the ends of oppositely directed arms 9 on the end of the boom 7 to two winding drums driven by the motor 18. The electric power supply is taken through a trailing cable in a trough 31 alongside the rails 1. The electric cable to the motor 18 is of such a length as to allow two or more turns round the pedestal 5 of the boom, which are carried in a gallery 37. Limit switches 38, 44 respectively, prevent the bogey touching the ends of the track and the cradle striking the end of the boom. Control boxes 43, 45 are on the cradle and the bogey respectively.
Patent GB-322842-A (GB)
Title: Improvements in and connected with cartons and other cases suitable for accommodating cigarettes and for like purposes
IPC: B65D5/72
Filed: 1928-10-15
Abstract: 322,842. Ralph, R. B. Oct. 15, 1928. Contents, facilitating access to; drawer-and-shell boxes. - Relates to cartons &c. for cigarettes and like articles in which the cigarettes &c. are supported on the base of a U-shaped strip disposed in an outer casing closed at its bottom end, one vertical limb of the strip being fixed to one of the sides of the carton and the other vertical limb being free and terminating in a tongued flap which closes the open end of the casing and which can be pulled to move the base of the strip and thus expose the ends of the cigarettes in stepped formation at the open end of the casing. According to the invention the strip is shaped at the end of the fixed vertical limb 10 to provide a recess 9 for the tongue 8 at the end of the closing flap 7. The carton may be provided with a closing flap 13 to cover the flap 7 which may be provided with a finger piece by which it can be lifted.
Patent GB-711838-A (GB)
Title: Improvements relating to yarn package building motions
IPC: D01H1/36
Filed: 1949-11-21
Abstract: 711,838. Builder motion timing mechanism. TWEEDALES & SMALLEY (1920), Ltd., and HOOPER, N. Nov. 20, 1950 [Nov. 21, 1949], No. 29728/49. Class 120(2) A timing mechanism for controlling the time at which a reversing mechanism appertaining to a ring spinning &c. machine will operate on an oscillatory shaft by which the ring or spindle rails receive their motion for yarn package building, comprises two sets of mechanism either or both of which may be driven by the reversing mechanism which is operated by a bar having an endwise reciprocating movement and on which is fixed one or two abutments, one set of mechanism containing a toothed wheel B, fixed on the oscillatory shaft A and meshing with a wheel C of a compounded planet wheel C, D on a large gear wheel E rotatable on the oscillatory shaft A and meshing with a wheel F fixed on a shaft G to which a step by step motion is imparted, the other wheel D of the compounded planet wheel meshing with the teeth of a tappet wheel H which is rotatable on the oscillatory shaft, the number of teeth in the gear train being such that the rotary speed of tappet wheel H will be slightly different from that of wheel B; the other set of mechanism, B<SP>1</SP>, C', D<SP>1</SP>, E<SP>1</SP> and H<SP>2</SP>, being the same as the first set with the exception that the large gear wheel E<SP>1</SP> is smaller than gear wheel E and meshes indirectly with a toothed wheel K through an " idler" L, and interposed between the two oppositely turned tappet wheels is the aforesaid bar M to which the endwise reciprocating motion is imparted. As shown the tappets H<SP>1</SP> and H<SP>3</SP> operate upon an abutment N on the bar M and the step by step motion is imparted to the shaft G by the forked end O of a lever P pivoted on a shaft Q and having attached thereto a pawl U engaged with a ratchet wheel T connected through a worm R and wormwheel S to said shaft G. When the bar M is moved endwise by either of the tappets H<SP>1</SP> or H<SP>3</SP> an abutment V operates the lever P and moves the ratchet wheel one tooth. This movement turns wheels E, E' slowly in opposite directions, thereby varying the angle between the tappets H<SP>1</SP> and H<SP>3</SP> which thus varies the angle through which shaft A rotates before reversal and consequently varies the stroke of the ring or spindle rail. Alternatively one set of mechanism only can be used, the tappet then operating between two abutments on the bar M and the other set of mechanism being completely isolated. " Roving built or " cop " built packages can be produced with the mechanism. Specification 709,512 is referred to.
Patent GB-1006123-A (GB)
Title: Image-reproducing system for a television receiver
IPC: H04N5/57
Filed: 1963-07-26
Abstract: 1,006,123. Television. HAZELTINE CORPORATION. July 26, 1963 [Aug. 6, 1962], No. 29797/63. Heading H4F. A television image-reproducing system is controlled so as to maintain correct black level operation (i.e. the production of black in the reproduced image for signal levels corresponding to black in the original scene) when the directcurrent component of the signal is relatively low and to permit black level operation substantially to deteriorate as the direct-current component increases in value. In effect the system provides D.C. coupling for the signal when the D.C. component is small (i.e. in dark scenes) and A.C. coupling when the D.C. component is high (i.e. in light scenes). The invention is said to prevent excessive overloading of the reproducing tube E.H.T. supply due to high average beam currents with light scenes. In a first arrangement, Fig. 1, the D.C. coupled video signal 5 at the output of video amplifier 19 is applied to the grid 25 of cathode-ray tube 23 through a circuit 32 which includes an A.C. path 33 and a D.C. path 34, 35, the D.C. path having its mid-point returned to a fixed potential B+ via a diode 36 so that the D.C. component may increase in value up to B + and is thereafter limited. A second arrangement, Fig. 5, uses D.C. coupling from the video amplifier to grid 25 but limits the tube beam current by a pentode 40 in the cathode circuit, the pentode being by-passed for A.C. signal components by capacitor 42. Below the knee of the pentode anode characteristic the beam average value varies tith the D.C. component of the video signal, but above the knee the average value is prevented from further substantial increase. A modification of this arrangement, Fig. 7 (not shown), makes use of the collector current characteristic of a transistor. A third arrangement, Fig. 8, makes use of A.C. coupling to the cathode 24 of the reproducing tube and D.C. restores at the grid 25 by means of a bias signal developed by a transistor 61 which functions as an averaging detector and amplifier in response to the excursions of the video signal in one polarity from the zero A.C. axis of the signal. It is demonstrated with reference to Figs. 9a-9d (not shown) that the developed bias signal varies in such a fashion that when it is combined with the A.C. coupled signal there results an operation closely approximating that obtained with the arrangement shown in Fig. 1. A modification, Fig. 10 (not shown), utilizes a double diode detector in place of transistor 61.
Patent GB-284808-A (GB)
Title: An improved process for the purification of gases
IPC: B01D53/46
Filed: 1926-11-25
Abstract: 284,808. General Electric Co., Ltd., and Smithells, C. J. Nov. 25, 1926. Argon; hydrogen.-Water, oxygen and other oxidizing impuritides are removed from gasss such as hydrogen, or rare gases such as argon alone or mixeid with hydrogen, by passing the gas over metallic chromium heated preferably to between 700-850‹ C. The gas may first be partly purified, for example by passage over red hot copper and phosphorus pentoxide. The prior use of hot tungsten and sodium in purifying gases is mentioned. Specification 166,541 is referred to.
Patent GB-1467548-A (GB)
Title: Alumina hydrate lake process
IPC: C09B63/00
Filed: 1975-07-16
Abstract: 1467548 Aluminium lake process COLORCON Inc 16 July 1975 29880/75 Heading C4P Alumina lakes particularly for use in colouring foods and pharmaceuticals are obtained by laking a F.D. and C dye containing an acid group with alumina hydrate obtained by mixing aluminium chloride with aqueous sodium bicarbonate at a temperature not higher than 20‹ C. Preferably the chloride is added as an aqueous solution in a weight ratio of NaHCO 3  to AlCl 3  of 555 to 1000, and the precipitated alumina hydrate subsequently ground and then the dye dissolved in water added at 20-60‹ C. and the cake dried at 50‹ C.
Patent GB-698957-A (GB)
Title: Improvements in or relating to casks, barrels, drums and the like
IPC: B21D51/34
Filed: 1951-02-07
Abstract: 698,957. Seamed joints. DEFAUW, M. Feb. 7, 1951 [Feb. 7, 1950], No. 3004/51. Class 83 (iv). [Also in Group XVII] A metal drum 2 has a set-in head 4 having a flange juxtaposed with the drum wall 2, the flange and wall being turned through 180 degrees, and a reinforcing ring 5 extending from the inside of the setin head, round the turnedover portion 1, 3 and in between the main wall 2 and the turned-over portion 1, 3.
Patent GB-652382-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J1/20
Filed: 1947-11-13
Abstract: 652,382. Discharge apparatus. PHILIPS ELECTRICAL, Ltd. Nov. 13, 1947, No. 30192. Convention date, Nov. 13, 1946. Addition to 553,191. [Class 39 (i)] In the construction of an indirectly - heated curved or helical cathode according to the parent Specification, wherein a tube containing insulated conductors is drawn or rolled and then flattened, the inactive parts of the cathode are flattened to present edges to the supports. The flattened ends 4 and bends 5 of a zig-zag or hair-pin cathode are registered in mica spacers 2, 3, and supported by connecting wires 6 and spring 9. Withdrawal of the parts 4 through the mica 2 may be prevented by the use of a mica slab which has a narrowed part, or the use of two slotted micas which can be adjusted to lock the wires. The cathode may be bent or flattened in a jig and the flattened parts may be in the plane of the cathode or at right angles thereto.
Patent GB-305710-A (GB)
Title: Improvements relating to dog racing apparatus
IPC: A63K1/02
Filed: 1927-11-10
Abstract: 305,710. O'Brien, P., Louis, W., and Naishtad, S. Nov. 10, 1927. No Patent granted (Sealing fee not paid). Portable railways.-A track for a motor carriage is canstructed in portable sections. In the form described the track is designed for a truck carrying a lure for dog-racing purposes and consists of a supporting rail b, a guide c and a conductor rail d, all mounted between a pair of spaced angle-iron brackets a<1>. Fencing may be also supported removably by the brackets. The truck may be driven by a motor i disposed within M frames g<1> and driving the rear wheel h by belt or spur gearing. A band brake m<1> may also be provided, the brake being applied by a spring m<3> and taken off by energizing a solenoid m<4> in series with the motor. Fig. 6 shows a modification wherein the track is supported by posts o to which are bolted brackets o' and sleepers o'. The track rails may be replaced by cables and the motor may drive an air propeller instead of the running wheels.
Patent GB-1170249-A (GB)
Title: Improvements in Control Systems for H.V.D.C. Transmission Links
Inventor: AINSWORTH JOHN DESMOND
IPC: H02J3/36
Filed: 1966-07-05
Abstract: 1,170,249. H.V.D.C. converter systems. ENGLISH ELECTRIC CO. Ltd. 3 July, 1967 [5 July, 1966], No. 30217/66. Heading H2F. A control system for a H.V.D.C. transmission link including two converter stations 1, 2 comprises local controllers 10, 13 at each station for controlling the conduction angles of the rectifier devices in dependence on the difference between a first signal P proportional to a quantity to be controlled and a second signal developed 26 or 27 by a master controller 15. The second signal is developed as the difference between a reference signal, e.g. derived from potentiometer 24 and a further signal proportional to a second quantity. The second signal to the inverter station 2 is reduced by a further reference signal 20 to provide the necessary current margin. As shown in Fig. 3, both quantities are the same type, namely the power at different points in the D.C. link and the signals proportional to these quantities are produced by multiplying the instantaneous currents and voltages in multipliers 29, 31, 34. In a modification, Fig. 1 (not shown) the quantities are the current measured at different points in the D.C. path. In a further modification (not shown), the second quantity is the frequency of the A.C. at one of the stations. The arrangement of Fig. 3 may be modified to provide current limiting by providing a further input to the master controller dependent on the difference between the maximum permitted current and the actual current, Fig. 5 (not shown). The local controllers may be duplicated for bipolar D.C. circuits, Fig. 6 (not shown), and in such a system means may be provided to balance the two currents to eliminate earth current, Fig. 7 (not shown). The signal from the master controller may be in the form of binary coded data derived by a forward and backward stepping counter, Fig. 8 (not shown). A suitable telecommunications link employed with the master controller situated at the rectifier is also described, Fig. 9 (not shown).
Patent GB-536587-A (GB)
Title: Improvements in or relating to the attachment of heels to shoes
IPC: A43D79/00
Filed: 1939-11-17
Abstract: 536,587. Attaching heels. UNITED SHOE MACHINERY CORPORATION. Nov. 17, 1939. No. 30238. Convention date, Nov. 18, 1938. [Class 17 (i)] Relates to apparatus for carrying out the method of heel attaching described in Specification 532,818. wherein the heel is secured by collared nails, a bifurcated end portion of each of which is clinched against a metal plate on the heel seat of a last within the shoe, and an opposite end portion of each nail entering a passage in the heel. The last is supported on a sleeve 16 raised and lowered by a screw turned by a hand wheel 22. A similar hand wheel 77 screw and sleeve carry a plate 67 supporting drivers 66 each recessed to house a shank' a of one of the fasteners, which is retained in the recess by a spring 80. The drivers are guided in bores in a block 32 exchangeable by sliding forwardly in a downward extension of the machine frame. The block 32 supports a heel-seat moulding member 48 urged downwardly by spring plungers at the four corners of the block. A spring latch 50 impositively holds the member 48 in position. In operation, the drivers are charged with collared nails N, a shoe is positioned on the last pin and the last raised by turning the hand-wheel 22 until the heel-seat contacts with the block 48 and forces this up against the block 32 thus moulding the heel seat of the shoe. The hand-wheel 77 is then turned to drive the bifurcated ends of the nails into the heel seat and clinch them against a plate on the last. The shoe is then lowered to starting position. The plate 67 may then be slid forwardly, and replaced by a plate having a depending portion 114 in a gap in a block 100 itself slid in the place of the block 32. The block 100 carries an adjustable tread plate 106, and the portion 114 carries an eccentric shaft 118 supporting an adjustable fork 122. This fork is adjustable laterally, and also in 'a vertical plane after lowering its eccentric pivot, which separates inter-meshing teeth. A heel drilled' to receive the projecting shanks of the nails is positioned on these shanks, and the heel pressed into position by rotating the handwheel 22. The relative position of the tread and rear clamps is adjusted by the hand-wheel 77, which may then be locked by a screw 128. Instead of changing the operating members above the shoe, a second machine may be used for the second operation.
Patent GB-788019-A (GB)
Title: Toy aircraft
IPC: A63H27/133
Filed: 1955-10-24
Abstract: 788,019. Toy aircraft. ERNST, M. Oct. 24, 1955 [Dec. 31, 1954], No. 30272/55. Class 4. A toy helicopter comprises a fuselage 1 supported by wheels 19, 23 mounted on sprung undercarriages 20, 24. A Z-section bracket 5 secured to both side walls of the fuselage has arms 11, 12 which form pivots for a rotor shaft 3 and a worm wheel 14. The lower end of shaft 3 has a flexible-wire driving connection 36 with a tail rotor 32. Other arms 9, 10 on bracket 5 form pivots for a shaft 4 carrying a worm pinion 13 and shaft 4 is connected by a flexible-wire drive 48 with the shaft 46 of a hand driving mechanism 37. Shafts 4 and 46 are hollow to accommodate a wire 50 secured at its respective ends 51, 52 to the casing 47 of the mechanism 37 and one arm of the bracket 5. By this means the rotors 15 and 32 are driven by rotation of handle 38 of mechanism 37 and the helicopter is controlled through wire 50 by bodily manipulation of mechanism 37.