baber/WOPTO huggingface dataset:
Patent GB-155590-A (GB)
Title: Improvements in and relating to cinematograph projectors
IPC: G03B21/46
Filed: 1920-12-20
Abstract: 155,590. Beesley, F. M., (Assignee of Lockhart, F. R., and Ord, H. G.). July 2, 1917, [Convention date]. No Patent granted (Sealing fee not paid). Kinematograph apparatus, film-centring devicesfor. A shaft 13 is driven from a main shaft 10 through spiral gears 11, 12 and drives the feedsprockets 17, 21 through spiral gears 14, 15 and 18, 19 respectively, the spiral of the gear 12 being of reverse direction to those of the gears 14, 18, and the film is centred by axial adjustment of the shaft 13. A film-shifting cylinder 26 is carried by an arm 25 which is loosely mounted on the shaft of the lower sprocket 21 by a sleeve which also carries an arm 27 fitted with a cam follower 28 moving in a cam-groove 23 shaped as shown, on a wheel 22 fixed on the shaft 10. Axial adjustment of the shaft 13 is effected by turning the head 35 of a shaft 34 formed with a screwthread 33 engaging a member 32 forked at 40 to engage between collars 39 on the shaft 13.
Patent GB-896128-A (GB)
Title: Improvements in plastics
Inventor: WILDMAN ANDREW ELLISON
IPC: B29C44/38
Filed: 1958-11-06
Abstract: Circular articles of foamed plastics are produced by distributing the reactants from which the foamed plastic is to be made in the liquid phase centrifugally over the base of a rotating circular mould of height small compared to its diameter.  For example, a circular foamed cushion may be produced by forming a liquid pre-polymer from a polyether glycol and tolylene di-isocyanate, mixing rapidly with the required quantity of aqueous catalyst, and immediately pouring on to the centre spot of a circular mould of large diameter compared with its height which is then rotated on a turntable until the liquid just reaches the circumference of the mould.  Spinning is then stopped and a lid placed on the mould.  By this means a circular cushion of even thickness is produced.  In a similar way, circular mouldings may be made from other foamed plastics, for example other polyurethanes, polyvinyl chloride, or phenolic- or urea-formaldehyde resins.
Patent GB-391077-A (GB)
Title: Improved means for use in the reception of wireless signals
IPC: H01Q1/24
Filed: 1932-12-17
Abstract: 391,077. Wireless signalling. FARQUHAR, W. M., Maxwell Cottage, Luncarty, near Perth.-(Farquhar, R. M. ; 21, Raine Street, Karori, Wellington, New Zealand.) Dec. 17, 1932, No. 35801. Drawings to Specification. , [Class 40 (v).] Means for signal reception comprises a coil, one end of which is connected to the usual aerial terminal of a receiving set, and a variable condenser, one side of which is connected to the coil and the other earthed. An earthed metallic shield may surround the coil to minimize local interference.
Patent GB-940833-A (GB)
Title: Improvements in or relating to releasable tube connections
IPC: F16L47/10
Filed: 1961-10-04
Abstract: 940,833. Tube couplings; joint making packing. POLVA NEDERLAND N.V. Oct. 4, 1961 [Oct. 6, 1960], No. 35804/61. Headings F2B and F2G. A releasable tube connector comprises a sleeve-like part 4 having an inwardly directed portion 5, a resilient sleeve-like sealing member 8, and a hard, substantially non-deformable, annular member 9 which is shorter than the sealing member. The sealing member 8 has in its free condition a portion 12 with an internal diameter less than the external diameter of the tube 1. The portion 12 is turned inwardly around the member 9 so that it is pressed tightly between the tube end and the member 9 and is also clamped between the latter and the inwardly directed portion 5. The tubes 1, 2, the sleeve-like part 4 formed as an extension of tube 2 and the member 9 may be made of polyvinyl chloride. A reinforcing sleeve 10 may be provided. The sealing member may be of rubber and have circumferential flutes 12a formed on the portion 12. Specification 568,304 is referred to.
Patent GB-336142-A (GB)
Title: Improvements in metal closures for jars
IPC: B65D45/32
Filed: 1929-11-23
Abstract: 336,142. Armstrong, J. J. V., (Phoenix- Hermetic Co.). Nov. 23, 1929. Capsules and like closures; sealing devices for stoppers and other closures; vacuum closures.- In metal closures for jars having an outer smooth substantially vertical walls, in which a divided holding band is employed, the ends of which may be held together by tongue and slot connection, as shown, the band 5 is formed between its upper and lower edges with one or more indented ribs 17 which, on tightening the band, grip the wall of the jar to hold the cover 2 in position, and while applying the closure hold the band and cover together as a unit. The holding tongue 13 may be reinforced by a central rib 13<a>, and the opening tongue 10 may be reinforced about its edge by a rib 11. The band is stated to be useful for holding the cover in position during sterilization, air pressure forming the subsequent sealing force. A sealing gasket 4 is preferably incorporated in the cover portion 3.
Patent GB-967025-A (GB)
Title: Filter insert formed of expanded metal
IPC: B01D29/11
Filed: 1962-09-21
Abstract: 967,025. Filter inserts. BRAUNSCHWEIGISCHE MASCHINENBAUANSTALT A.G. Sept. 21, 1962 [Sept. 26, 1961], No. 35936/62. Heading BID. A filter insert of expanded metal comprises a hollow body 1, expanded in its longitudinal direction and attached to the neck 2 of the insert, e.g. by welding. The internal diameter of the hollow body is from 20-200 mm. and the ratio of internal diameter to wall thickness is from 40:1 to 50:1. Owing to the longitudinal expansion of the metal, the local bossings or ribs 3 which form openings in the wall of the insert, extend, looking from the neck end of the insert, from inside outwards, and obliquely downwards. As shown, the end opposite the neck may be closed by a bottom 4 convex towards the inside of the insert and paraboloidal in shape. Filter inserts so made will withstand pressures up to 10 atmospheres without being internally stiffened, and the absence of such stiffening facilitates cleaning while the arrangement of the ribs 3 enhances the adhesion of filter aids in the circumference of the insert. The paraboloidal bottom prevents the accumulation of residues during cleaning.
Patent GB-172534-A (GB)
Title: Improvements in tire rims
IPC: B60B25/20
Filed: 1920-12-22
Abstract: 172,534. Acha, E. Dec. 22, 1920. Tyre attachments to rims.-A rim is made in two parts 6, 7 having interengaging fingers 9, 10 arranged in groups. The parts are held together by plates 14, preferably of spring steel, which are rotatable on pivots 13 on the part 6, and are provided with slots 15 to snap over projections on the part 7. Plates 14 are provided at botb ends of each group of fingers 9, 1.0.
Patent GB-845835-A (GB)
Title: Improvements in and relating to suction devices for holding, positioning, or liftingpurposes
Inventor: LEECH LAURENCE ARTHUR
IPC: B66C1/02
Filed: 1958-11-11
Abstract: 845,835. Suction devices for handling articles. MILLARS MACHINERY CO. Ltd. Jan. 21, 1959 [Nov. 11, 1958], No. 36168/58. Class 78 (4). A suction-cup 10 is connected to suction through a valve 15, 16 only when engagement of the cup with an article permits a leak past the valve to equalize the pressures on either side of the valve. As illustrated, the valve comprises a disc 15 engaging a seat 16 and carried by a hollow stem 14 providing a leak which can be adjusted by a screw-plug 18. Thus if several such cups are connected to a common suction source, any of the cups not engaged by the load will have their valves 15, 16 closed by the pressure drop across the valve so that the loss of suction will be reduced. The Specification shows an arrangement of the cups 10 for lifting a sheet in which the cups are suspended singly and in pairs from a single pipe conveying the suction.
Patent GB-1146388-A (GB)
Title: Improvements relating to slot-type die extrusion equipment
IPC: B29C48/08
Filed: 1967-08-07
Abstract: 1,146,388. Extrusion/calendering machines. STEWART BOLLING & CO. Inc. 7 Aug., 1967 [25 Aug., 1966], No. 36197/67. Heading B5A. An extrusion/calendering machine for rubber or plastics comprises a two-part extrusion die 41, 42 the upper part 41 being connected to the calender frame (33), 34 and the lower part 42 being connected to a horizontally reciprocable extruder. Such an arrangement allows separation of the die parts to facilitate cleaning thereof. The extruder (B), Fig. 1 (not shown), is reciprocated by a double-acting fluid-pressure motor (20), and to ensure mating and correct alignment of the die parts when the extruder is moved towards the calender, keys 60, Fig. 2, and key slots 61 are provided, see also Fig. 3 (not reproduced), and the lower side faces 50 of the die part 42 are inclined and engage similarly inclined surfaces 51 on frame members 52, the die part being held in position by transversely movable wedge locks 65. Surfaces 51 are formed by replaceable wear plates 54, e.g. of hard bronze, and movement towards the calender is limited by adjustable stop-screws 55. Wedge locks 65 are reciprocated by fluidpressure motors (71), Fig. 3 (not shown). The extrusion orifice 43 is situated somewhat above the nip of calender rolls 30, 31 and during operation, die part 41 may be attached to the extruder by means of bolts 47. The contour of extrusion orifice 43 may be changed by replacing an insert 45. The extrusion die may comprise heating and cooling means.
Patent GB-981522-A (GB)
Title: Grisan derivatives
Inventor: WALKER THOMAS
IPC: C07D307/94
Filed: 1960-10-21
Abstract: Enol halides corresponding to the skeletal formula <FORM:0981522/C2/1> or <FORM:0981522/C2/2> may be prepared by reacting with a halogenating agent serving to convert a carboxyl group into an acid halide group, in the presence of an alkali metal or alkaline earth metal halide, a compound corresponding to the skeletal formula <FORM:0981522/C2/3> or <FORM:0981522/C2/4> respectively where R represents a halogen atom, R1 and R3 represent an alkoxy, aralkoxy, aryloxy, alkylthio, aralkylthio or arylthio group or a primary, secondary, tertiary or heterocyclic amino group, R1 represents a hydrogen atom or an alkyl or aralkyl group or, optionally, a halogen atom where R1 represents a primary, secondary, tertiary or heterocyclic amino group, and R4 represents a hydrogen or halogen atom or an alkyl or aralkyl group.  The halogenating agent may be phosphorus oxychloride and the metal halide may be lithium or magnesium chloride.  Specifications 981,521 and 981,523 are referred to.
Patent GB-325621-A (GB)
Title: Improvements in and relating to wire baskets
IPC: A47K5/03
Filed: 1928-12-08
Abstract: 325,621. Wiggin, W. C. B. Dec 8, 1928. Baskets. - The intercrossing wires C, C<1> of a metal sponge, soap, or like basket are joined at the intersections by clips comprising a centre portion A and preferably four radial tongues B adapted to be bent down to fit into the angles between the wires and bent underneath to grip them. The clips may be of stainless steel, and the centre portions are preferably of domed form. Specification 226,953, [Class 45, Fencing &c.] is referred to.
Patent GB-986951-A (GB)
Title: Improvements in doll, toy figure and the like with an adjustable lock of hair
Inventor: BEEBE HERBERT RICHARD
IPC: A63H3/44
Filed: 1963-09-16
Abstract: 986,951. Dolls. AMERICAN DOLL & TOY CORPORATION. Sept. 16, 1963, No. 36363/63. Heading A6S. A doll is provided with a variable length of hair 12 withdrawable from or retractable into the hollow head 10 through an opening 13 by means of a cord 15 which may be wound on a shaft 16 rotatable by means of a knob 25 on the back of the doll. The shaft 16 may be provided with a ratchet comprising teeth 26 on the knob and recesses 27 in the body, the ratchet being releasable by finger pressure on the end 22 of the shaft against the action of a spring 24.
Patent GB-867203-A (GB)
Title: Colouration of cellulose acetate textile materials
Inventor: OLPIN HENRY CHARLES
IPC: C09B35/35
Filed: 1956-11-28
Abstract: Textile material of cellulose triacetate is dyed by a process which comprises diazotizing 4, 41-diamino-2-acetylamino- 5-methoxy-azo-benzene on the material and coupling the resulting diazo compound with 2, 3-hydroxynaphthoic acid.  The diamino base may be incorporated in the textile material by allowing the material to take it up from an aqueous dispersion.  The base may then be diazotized in a second bath, e.g. one prepared with sodium nitrite and an acid, and coupling may be effected in a third bath. Alternatively, both the base and the 2, 3-hydroxynaphthoic acid may be incorporated in the material and the latter may then be subjected to treatment to effect diazotization and coupling.  The base may be applied first and in the form of a substantially neutral aqueous dispersion, while the 2, 3-hydroxynaphthoic acid may subsequently be applied from another bath at a low pH value, e.g. 3-4.  The dyeing may be performed while the cellulose triacetate material is in a swollen state.  The 4, 41-diamino-2-acetylamino-5-methoxy-azo-benzene may be obtained from the corresponding 41-nitro compound by reduction of the nitro group with a solution of sodium sulphide. In an example, cellulose triacetate material is treated with an aqueous dispersion of the diamino compound containing soap, Turkey red oil, and xylene, and the temperature is raised gradually from 50 DEG C. to 90 DEG C. The fabric is rinsed and then treated in a diazotizing bath prepared with sodium nitrite and hydrochloric acid.  The material is rinsed in acidified water and then immersed in an aqueous solution prepared with 2, 3-hydroxynaphthoic acid, caustic soda, and a non-ionic wetting agent, the pH being adjusted to 4,5 by addition of formic acid.  The coupling is assisted by raising the temperature to 75 DEG C.  The material is dyed a navy blue colour.  Darker shades up to black are obtained by increasing the concentration of the dye components and raising the temperature of coupling.  The Provisional Specification comprises also processes in which other diamino-azo-benzenes are used as diazo components and in which other coupling components are used.  As diazo components there may be used compounds consisting of 4, 41-diamino-azo-benzen having acetylamino, methoxy, ethoxy, or halogen as substituents in one or more of the 21-, 51-, and 2-positions.  As coupling components there may be used para-coupling dialkyl anilines, e.g. N-di-b -hydroxyethyl-m-toluidine, or aryl amides of aromatic o-hydroxycarboxylic acids, e.g. 2, 3-hydroxynaphthoic acid o-anisidide.  It is stated that the process may also be used for dyeing acetone-soluble cellulose acetate textile materials. Specifications 758,442, 792,838 and 867,202 are referred to.
Patent GB-1278545-A (GB)
Title: Improvements in or relating to electronic multi-path filters
IPC: H03H19/00
Filed: 1970-07-28
Abstract: 1278545 Active filters LICENTIA PATENTVERWALTUNGS GmbH 28 July 1970 [4 Nov 1969] 36380/70 Heading H3U In an n-path filter in which each path is provided with an input modulator M 1e , M 2e  ... M ne , a filter F, and an output modulator M 1a , M 2a  ... N a , the control signals applied to the input and output modulator of each channel respectively have a relative phase difference. In one embodiment, Fig. 2, the control signal source TG (# 0 ) provided a number of phase displaced outputs, each of which is applied to an input modulator of one path and an output modulator of an adjacent path. In an alternative arrangement, Figs. 3, 4 (not shown) an effective phase difference is provided by making the mark/space ratios of the input and output modulator control signals different.
Patent GB-1104114-A (GB)
Title: Ship's trim indicator
IPC: B63B9/00
Filed: 1965-08-25
Abstract: 1,104,114. Trim indicating. ANDREW CHALMERS & MITCHEL Ltd., D. BOYD, and G. J. BROWN. 24 Nov., 1966 [25 Aug., 1965], No. 36430/65. Heading B7M. A ship's trim indicator includes a pendulum 2 carrying at least one permanent magnet 4, at least one magnetically-operable switch 5A, 5B mounted on each side of the middle position of the pendulum in such a position that swinging movement of the pendulum through a predetermined angle to one side or other of the middle position brings the magnet on the pendulum into close enough proximity with one switch or the other to operate the respective switch, an electromagnetic relay 9 operatively connected (by wiring 10) to each switch, and an audible and/or visible warning device electrically connected to be controlled by the electromagnetic relays.
Patent GB-754427-A (GB)
Title: Rotary vane pump with disc-shaped rotor
IPC: F04C2/344
Filed: 1954-12-17
Abstract: 754,427. Rotary pumps. TEVES, H., and TEVES, E. A., [trading as TEVES MASCHINEN - UND ARMATURENFABRIK KOMM.-GES., A.]. Dec. 17, 1954 [Dec. 17, 1953], No. 36606/54. Class 110(2) Radially-sliding vanes 6 are mounted in a slotted rotor 5, the working chambers being provided with inlet and outlet ports 13, 14 connected by diagonal passages 15 with the main inlet and outlet ports 11, 12 respectively. The rotor is journalled on the cylindrical parts of the casing bore. Recesses 17 are supplied with lubricant which is picked up by the vane tips and forced into recesses 16. Packing rings 7, 8 of rubber are provided, rings 8 being eccentrically mounted in relation to the axis of rotation, to spread a film of lubricant over the rotor ends. As shown, the rotor 5 is driven by a pulley and disc 10, but other driving means may be used.
Patent GB-358794-A (GB)
Title: Process for the electrolytic manufacture of magnesium
IPC: C25C3/04
Filed: 1930-12-05
Abstract: 358,794. Electrolytic production of magnesium. JESSUP, A. C., 2, Rue Adele, Clamart, Seine, France. Dec. 5, 1930, No. 36709. [Class 41.] An incompletely dehydrated mixture of between two and three molecular proportions of potassium chloride to one of magnesium chloride is electrolyzed with production of magnesium until the mixture contains at least three molecular proportions of potassium chloride to one of magnesium chloride. The mixture which is thereby dehydrated is then subjected to further electrolysis in separate vats, of which there may be several for each vat used in the first stage. The mixture used in the first stage may be previously partially dehydrated by gradually adding the hydrated magnesium chloride, or a mixture of this with potassium chloride, or carnallite to a relatively large liquid mass of dehydrated magnesium chloride or a mixture thereof with potassium chloride. Potassium chloride obtained from the second electrolysis may be added to magnesium chloride during partial dehydration thereof. Specifications 345,518 and 347,001 are referred to.
Patent GB-1460988-A (GB)
Title: Raster distortion correcting circuit
IPC: H04N3/23
Filed: 1974-08-21
Abstract: 1460988 Cathode-ray tube circuits SONY CORP 21 Aug 1974 [25 Aug 1973] 36764/74 Heading H4T In a horizontal pincushion distortion correction circuit the power supply +B (Fig. 3) to output transistor 5 of the horizontal deflection circuit is modulated at the vertical frequency via transistor 9 to the base of which a vertical frequency parabolic waveform is supplied and the circuit of the horizontal deflection coil(s) 4 is completed through the working windings Lhl, Lh2 of a saturable reactor 1 the control winding Lv of which is also supplied with a vertical frequency parabolic waveform. With this arrangement the modulation of the power supply corrects for pincushion distortion at the sides of the raster and the action of the saturable reactor, in addition to effecting a parabolic shaped vertical modulation also effects a horizontal frequency modulation because the horizontal deflection current flowing in the windings Lh1, Lh2 varies the inductance at horizontal frequency and thus corrects pincushion distortion both at the sides and at the central part of the raster. Because, however, the power supply modulation effects distortion correction at the sides of the raster it is sufficient for complete correction if the saturable reactor effects correction in the central region only and thus the transductor may be made much smaller and of lighter weight. The invention is particularly suitable for use with a colour cathode-ray tube having plural in-line beams. A more detailed circuit arrangement is described with reference to Fig. 6 (not shown).
Patent GB-1477468-A (GB)
Title: Peak level indicators
IPC: G01R19/30
Filed: 1974-08-21
Abstract: 1477468 Measuring peak voltages SONY CORP 21 Aug 1974 [25 Aug 1973] 36776/74 Heading G1U A peak detector employs a charge storage junction type FET 5, 6, 7, Fig. 1, which, as described also includes an additional emitter 8 whereby the rate at which stored charge is neutralized, and hence the decay time of the peak detector, may be controlled. In this way a peak detector can be constructed without using capacitors in such a way that it can be adjusted to conform either to the D1N standard or to the BBC standard. The operation of the semi-conductor device shown in Fig. 1 is as follows. With the emitter 8 and gate 6 floating, a potential 44 applied between the source 5 and drain 7 causes a current to flow through a conductive path established in the main N substrate. If the gate 6 is now made, and maintained, negative, Fig. 2B, the PN junction 2, 3 is forward biased and a depletion layer is established in the main N substrate, thereby constricting the current path and reducing the drain current, Fig. 2A, to a low level. Raising of the gate 6 potential at a time t o  to zero removes the forward bias across the PN junction 2, 3 and results in charge being trapped in the P region 2. This charge gradually leaks away to reduce the depletion layer and the drain current gradually rises, and eventually reaches a new steady level at a time t 1 . According to the invention, the rate at which the depletion layer is reduced can be increased by injecting holes into the main N substrate 10 by the emitter 8, such holes migrating to the P region 2 to assist in neutralizing the stored charge. In use the semi-conductor device is connected as shown in Fig. 3. An incoming signal 41, such as Fig. 4A, is rectified 50, Fig. 4B, and applied to the gate electrode of the device 19. The voltage 35 Fig. 4C, across the device then follows negative changes rapidly and positive changes slowly at a rate determined by the rate of injection of holes into the emitter. Various modifications of the basic semi-conductor device are described, and the use of light to control the decay time is mentioned.
Patent GB-755415-A (GB)
Title: Improvements in or relating to branding apparatus
IPC: B27M1/06
Filed: 1954-12-21
Abstract: 755,415. Branding machines. BURGER, R. Dec. 21, 1954 [Jan. 2, 1954], No. 36939/54. Class 100 (2). A machine for applying brand marks to articles of wood or similar material, e.g. wooden boxes, comprises an eccentric h mounted on a shaft g and connected by a ring k and a rod to a pressure plate l which is resiliently mounted on springs m. The shaft g is driven through gearing e, f having a ratio of 1 : 2 from a shaft d, itself driven from a belt wheel b through a onerevolution clutch. When the clutch is coupled, the shaft g is rotated through half a revolution so that the pressure plate is moved from the uppermost position into a position in contact with an article on the fixed branding plate n. When sufficient time has elapsed for the branding operation to be effected the clutch is coupled again and the pressure plate returns to the upper position.