baber/WOPTO huggingface dataset:
Patent GB-448143-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/02
Filed: 1935-04-10
Abstract: 448,143. Substation equipment. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WARRING- TON, A., and JONES, A. F., c /o General Electric Co., Ltd., Stoke, Coventry. April 10, 1935, No. 11087. [Class 40 (iv)] [See also Group XL] A filter element comprising inductances 9, 10 and condensers 16, 17 is included in a telephone substation set to prevent clicks and impulses from interfering with an adjacent radio receiver. The element may be structurally combined with the set as in the table set shown in Fig. 1, in which the condensers are clipped to a plate 5 and the inductances are held between this plate and the base-board, the plate 5 being suspended from a terminal board 3 secured to the base-board by brackets 7. In another construction, Fig. 4, the filter element comprises a moulded member 42 fitted with terminals 48, the condensers and inductances being held in position in shaped recesses by an insulating plate 43. The anti-side-tone circuit shown in Fig. 3 is similar to that shown in Specification 340,693 but includes also a resistance 52 to prevent sparking at the impulse contacts 36 during dialling and a coil 53 across the transmitter 34 to prevent damage by inductive surges.
Patent GB-602030-A (GB)
Title: Improvements in or relating to pulse radar or like systems
IPC: G01S1/02
Filed: 1945-05-02
Abstract: 602,030. Radiolocation. ELLIOTT, W. S., PURSEY, H., and WEBLEY, R. S. May 2, 1945, No. 11193. [Class 40 (vii)] In a pulse radar system employing the Doppler effect to distinguish between fixed and moving targets, wherein the signals, corresponding to moving targets, are caused to exhibit beats at the display unit by mixing the echo signals with a reference oscillation, the display unit comprises a cathode-ray tube wherein successive traces, intensity modulated by the echo signals, are laid down side-by-side so that the indications displayed for moving targets exhibit striations. In the case of a radar system with a scanning aerial system, a P.P.1 or B-type display may be used to present the striated indications. Since, in the case of a P.P.1, the separation between adjacent traces near the centre of the screen becomes too small for satisfactory operation, alternate traces may be blacked-out below a certain range, by the application of a suitable square wave voltage to the grid of the cathode-ray tube. The reference voltage with which the echo signals are mixed may be produced within the apparatus and used in the manner described in Specification 596,649 or in Specification 596,650. Alternatively, if suitable " permanent echo " signals exist, the echo signals may be made to exhibit a modulation due to beating with these signals.
Patent GB-983463-A (GB)
Title: Colour television camera
IPC: G02B27/14
Filed: 1962-03-23
Abstract: 983,463. Optical apparatus. FERNSEH G.m.b.H. March 23, 1962 [March 23, 1961], No. 11202/62. Heading G2J. [Also in Division H4] In a simultaneous system colour television camera a real image Y<SP>1</SP> produced by the objective lens system OA (preferably a zoom lens) and collimated by the lens system T 1  is split into at least two component colours (three as shown) by the dichroic mirrors S 1 , S 2 , each component beam being directed through a separate optical system T 2 <SP>1</SP>, T 2 <SP>11</SP>, T 2 <SP>111</SP> comprising a pair of lenses, for example Vb, Hb, and a plane mirror, for example S 3 <SP>1</SP>, on to the photo-sensitive electrode of a camera tube, for example Rb. The optical systems T 2 <SP>1</SP>, T 2 <SP>11</SP>, T 2 <SP>111</SP> are identical and are enclosed in dust proof cases (Fig. 3 not shown), provision being made for axial movement of one or other of the lenses therein. A mirror S 4  allows the camera tube Rg to be positioned in a plane perpendicular to the plane containing the other camera tubes and the lens systems OA, T1. A system P for producing a test image is provided; this (Fig. 4 not shown) comprises a test transparency illuminated by a light source and an associated lens system. The rotatable mirror S 5  for positioning the image of the test transparency switches on the light source when moved in front of the objective system OA. Colour filters F and curvature correctors (Fig. 3 not shown) may be provided in front of the camera tubes. Other accessories may include a grey filter F<SP>1</SP> or a light flux regulator (not shown). An optical viewfinder may be provided by branching off part of the light flux, e.g. by a light dividing prism, at a point in the optical path between lens systems OA and T<SP>1</SP>, but not in the plane of image Y<SP>1</SP>.
Patent GB-150022-A (GB)
Title: Improvements in apparatus for stretching leather by tension
IPC: C14B1/10
Filed: 1919-05-06
Abstract: 150,022. Kay, H. May 6, 1919. Rotating-tool machines; stretching by tension. -Hides, skins, or leather to be stretched and scoured are passed between the pinch rolls 1, 2, and the lever 25 is pulled forward so as to operate the links 26 and rock the arms 23 so as to bring the bladed roll 18 against the skin, which is backed up by the fixed bolster 21. The roll 18 rotates at a greater peripheral speed than the rolls 1, 2 and in the same direction, so as to pull upon and stretch the leather and remove wrinkles. A spring 33 enables the roll 18 to yield. In due course the skin reaches the lower pinch rolls 3, 4, whereupon the operator reverses the lever 25 so as to bring the bladed roll 19 into action. This roll rotates oppositely to the rolls 3, 4 so as to pull upwards on the skin, which continues to pass downwards. Jets 35 of water may be discharged on the skin from the pipe 34.
Patent GB-237374-A (GB)
Title: Improvements relating to the process of butter making
IPC: G01N33/06
Filed: 1924-05-07
Abstract: A reagent for estimating fat in milk and cream contains not less than 30 per cent, and preferably more than 40 per cent, of water, and comprises in addition propyl or amyl alcohol, methyl or ethyl alcohol, and alkali hydroxide.  The composition of a suitable reagent is indicated and its use described. Specification 2542/93 is referred to.
Patent GB-698707-A (GB)
Title: Improvements in or relating to pulse-code modulation signal transmitters
IPC: H04B14/06
Filed: 1951-05-15
Abstract: 698,707. Multiplex pulse code signalling. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 15, 1951 [May 17, 1950], No. 11352/51. Class 40 (v). In a pulse code modulation transmitter, in which all the transmitted pulses are substantially identical and coincide with members of a train of equidistant pulses, the synchronizing channel interval is the only signal interval which invariably. includes a pulse and is recognized by this characteristic. A test relay connected to a signal channel disables the channel if, due to a fault, pulses continuously occur therein for more than a predetermined period. The embodiment described is a tenchannel transmitter, the nine signal channels being of the type using a oneunit binary coder shunted by a return circuit including a demodulator, the coder being fed from a difference producer to which the original and the demodulated signals are applied. The master oscillator 10 controls a pulse generator 11, the pulses therefrom being fed direct to the output conductor 23 to form the synchronizing pulses. They are also fed to the delay line distributer 13, tappings 14 ... 22 on which feed the channel modulators A1 ... A9. The typical circuit of channel modulator A3 is shown in detail. The channel intelligence signal from microphone 28 is fed to the difference producer 30, the output from which is either of positive or negative sign. When it is positive, it allows the mixer 32 to pass a pulse from tapping 16 on the delay line 13 to a pulse widener 33. The widened pulse is passed to an integrator 36, the demodulated signal from which affords the second input to the difference producer 30. The signals for application to the output conductor 23 are produced by feeding the widened pulses from circuit 33 to a differentiator 37, the positive output pulses of which are selected by the class-B amplifier 38. If pulses occur continuously in the channel output, the rectifier 39 and smoothing filter 40 having a time constant of 1 second for example, which are fed from the output of differentiator 37, provide current to operate relay. Contacts 42 of the latter opens to disconnect the pulse input to amplifier 38, while contacts 43 energize an alarm lamp 45. The relay may be provided with a holding circuit. Alternatively, the relayenergizing circuit may be fed from the difference producer 30 or integrator 36. The receiver may be synchronized as described in Specification 698,708. Specifications 662,611, 684,318 and 691,824 also are referred to.
Patent GB-400230-A (GB)
Title: Improvements in or relating to the combustion chambers of internal combustion engines of the liquid fuel injection compression ignition type
IPC: F02B3/06
Filed: 1932-04-20
Abstract: 400,230. Oil engines. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. April 20, 1932, No. 11354. [Class 7 (iii).] In a compressionignition engine in which the air charge rotates about the cylinder axis, a fuel injector delivers fuel so that the mean direction of the jet is parallel to, or is inclined at an angle of less than 45‹ to planes normal to the cylinder axis, and which deviates from the radial direction by a substantial angle in the direction of flow of the rotating air. In the double-acting engine illustrated in Fig. 1, a piston J and a sleeve valve B control tangentiallydisposed air-admission ports A<2>, B<3> and exhaust ports A<1>,B<1>. The piston-rod J3 passes through the lower combustion chamber G, in the wall of which is a fuel injector H. A single spray of fuel delivered by the injector, Fig. 3, is directed away from the piston-rod. The combustion chamber G at the upper end of the cylinder may be of the form described in Specification 261,435, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], and it may be either frusto-conical or frusto-spherical in shape. Specification 241,529, [Class 7 (iii), Internal-combustion engines, Carburetting- apparatus &c. for], also is referred to.
Patent GB-1042944-A (GB)
Title: Improvements in and relating to suppositories
Inventor: BROWN MARGARET
IPC: A61K6/891
Filed: 1963-03-22
Abstract: 1, 042, 944. Suppositories. T. J. SMITH & NEPHEW Ltd. March 6, 1964 [March 22,1963], No. 11456/63. Heading A5B. Suppositories, pessaries and dental cones comprise an outer casing of a water-soluble wax-like material with a heat softening point above 40‹C. enclosing a non-aqueous emollient-type base filling, into which are incorporated the required active ingredients. Suitable materials for the casing are "Carbowax" (Registered Trade Mark), polyethylene glycols, cetomacrogol, polyoxyethylene stearates and polyoxy-ethylene lauryl ethers into which may be incorporated medicaments for systemic absorption. They may be made by filling a mould with the molten casing material, removing the majority again before it has set, subsequently filling the hollow with the "core" material and sealing with a plug of the casing material (see Figs 1 and 3). Alternatively, the "core" may be preformed and coated by dipping or spraying.
Patent GB-773889-A (GB)
Title: Improvements in and relating to electric contact devices
IPC: H01R33/76
Filed: 1954-04-21
Abstract: 773,889. Binding-posts. McMURDO INSTRUMENT CO., Ltd., and COATES, L. K. April 21, 1955 [April 21, 1954], No. 11483/54. Class 38 (1). [Also in Group XL (a)] Connectors 3 of a holder for a valve of the type having flying leads are mounted in a ring 1 of insulating material which has a slow recovery after deformation, e.g. polytetrafluorethylene or silicone rubber, by means of flat, integral shanks 5 with triangular heads 6. The shanks are pushed through bores 7 in the ring, the heads 6 displacing the insulating material which subsequently returns to grip them. Grooves 14 receive the connectors and prevent rotation thereof.
Patent GB-1093216-A (GB)
Title: Improvements in object handling system
IPC: B64F5/00
Filed: 1965-03-18
Abstract: 1,093,216. Platform elevators; cradles. GENERAL ELECTRIC CO. March 18, 1965 [March 8, 1964], No. 11523/65. Heading B8H. [Also in Division F1] Apparatus for handling missiles or turbojet engines 12, Fig. 1 comprises spaced cradle assemblies 10, 11 each including a housing 17, Fig. 2, supported in which is a cradle member 18 having guides 21, 22, Fig. 3, fitting within guideways 23, 24 on the housing 17, and hydraulic rams 26, 27 pivotally connected at 28, 29 and 30, 31 to the housing 17 and the member 18, respectively, and which upon operation thereof lift the member 18 relative to the housing 17. The housing 17 is mounted on roller adapters 13, 13a which fit on rails 14, 14a of a vehicle 15. The rams 26, 27 are supplied with fluid from a pump 36 operated by a handle 37 and are provided with return springs 38. The member 18 supports a rollover ring segment 40 which carries engine supports 51, 51a. The segment 40 normally rests on ties 41 on the member 18, Figs. 3 and 4 but if the engine is to be raised higher, supports 47 which are pivotally mounted on the member 18 are moved from a horizontal position to the vertical position shown in Fig. 2, to support the segment 40 during a second stroke of the rams 26, 27, the segment 40 being temporarily supported, after movement to the position shown in Fig. 2 and during return movement of the rams, on members 44, Fig. 5 (not shown), inserted into the housing 17. An upper rollover ring segment 55, Fig. 9 (not shown) is releasably secured to the segment 40 by swing bolt locks 56, 57 and is connected to the engine 12 by bracket 65, through a turnbuckle 66, and brackets 69, 70. The supports 51, 51a can now be removed and the rollover segments lowered until they rest on rollers 72, 73 provided on the housing 17. The roller 73 may now be rotated to turn the engine 12 about its axis to gain access to any part of the engine. If the engine is to be tested in the apparatus the rollover ring segment 55 is replaced by brackets 80, 81, Fig. 11 (not shown), and pedestals 85, 86 which engage over the roller adapters 13, 13a and engage the engine with thrust pins 87, 88. By lowering the rollover segment 40 the engine is supported only by the pedestals 85, 86. A yoke 90 may then be bolted to the pedestals, the yoke being connected to the engine by centring braces 91 and a link 95, and ties 92, Fig. 12 (not shown), and a brace 94 may be provided.
Patent GB-807871-A (GB)
Title: Improvements in or relating to colour television receiving apparatus
Inventor: CHEETHAM WILLIAM ROGER
IPC: H01J31/20
Filed: 1954-04-21
Abstract: 807,871. Television. PYE Ltd. April 21, 1955 [April 21, 1954], No. 11531/54. Class 40 (3). In a colour television receiver pulses of radiant energy produced by the passage of the scanning beam of the picture tube 6 (Fig. 1) over reference elements in a colour line-filter 13 and reflected from the rear of a viewing screen 7 are converted, by means of a photo-electric cell 20, into electrical pulses which, after processing in 23 (to produce a series of differentiated pulses) are caused to produce a series of individual gating pulses in units 24, 25, 26 for amplifiers 2, 3, 4, to which the received colour signals are applied and which are gated " on " to supply these signals to the modulating electrode 5 of the tube in synchronism with the scanning of corresponding colour elements of the filter 7. The filter 13 comprises a repeating series of red, green and blue elements the latter elements being additionally arranged to transmit ultra-violet light which (the screen 12 of tube 6 having a component of radiation in this region and the photo-electric cell 20 being responsive to ultra-violet light) in this embodiment, forms the radiant energy from which the gating pulses are derived. In a second embodiment employing a " directly-viewed " picture tube in front of the screen of which the filter is positioned, the reference elements comprise either transparent, opaque or neutral density filter elements interspersed with the red, green and blue elements (Figs. 8 and 9, not shown). Specification 807,872 is referred to.
Patent GB-173458-A (GB)
Title: Improvements in the pressure-regulating devices of mangling and wringing machines
IPC: D06F45/02
Filed: 1921-04-21
Abstract: 173,458. Hunter, A. R., and Hunter & Wardell, Ltd. April 21, 1921. Two-roller mangles and wringers, pressurearrangements for.-The upper roller is forced against the lower by tension members or cables P passing over the bearings E and attached to a vertically-guided bar G depressed by a spring K. The bar can move lengthwise to some extent, its ends being received in slots H in the frame. Pressure is applied to the spring K by means of a bolt J, Fig. 2 and hand lever L retained by a rack and catch N, or by the block T, Fig. 3, links S, nuts R, and right and left handed screw-threads on a rotary spindle O. Specification 171,945 is referred to.
Patent GB-455285-A (GB)
Title: Process for dyeing cellulose acetate artificial silk
IPC: D06P3/40
Filed: 1935-04-15
Abstract: Cellulose acetate artificial silk is dyed with an azodyestuff from the diazotized sulphurous acid ester of 1,8-amino-naphthol and a coupling component containing no free sulphonic or carboxylic group, the sulphurous acid ester group being split off during the dyeing process, e.g. either by dyeing in the presence of a small quantity of an alkaline saponifying agent such as sodium carbonate or phosphate, or by dyeing directly with a dyestuff previously ground with such an alkali.  The dyeings can be discharged and are fast to light and washing.  In examples (1) the dyestuff acid, and (2) the sodium salt thereof obtained by diazotizing 1,8-aminonaphthol sulphurous acid ester and coupling with py-tetrahydro-3,7-dioxynaphthoquinoline are used in the presence of sodium carbonate.  Other coupling components specified are 1-naphthylamine, ethyl-1-naphthylamine, 1-phenyl-3-methyl-5-pyrazolone, di-b -hydroxyethylaniline, b -hydroxyethylmethylaniline di-b -hydroxyethyl-m-toluidine, 1-amino-2-naphthol ethyl ether, 1,5-aminonaphthol (acid coupling), and 3-amino-4-cresol methyl ether.
Patent GB-1085483-A (GB)
Title: A window or door seal, particularly for motor vehicles
IPC: B60J1/20
Filed: 1966-03-17
Abstract: 1,085,483. Door &c. seals. DRAFTEX G.m.b.H. March 17, 1966 [Oct. 2, 1965], No. 11781/66. Heading E1J. A window or door seal of the "straddle" type, particularly vehicles to straddle over the flange or a door or body opening has a metal insert comprising separate spaced metal strips 1 provided with holes 3, and joined by interlaced threads 4, 5 of steel wire, nylon, rayon or perlon, the whole embedded in rubber or synthetic material and bent longitudinally into a transverse U-section.
Patent GB-937069-A (GB)
Title: Polyurethane catalysts
IPC: C08G18/20
Filed: 1960-04-04
Abstract: A process of preparing polyurethanes comprises reacting a polyol with an organic polyisocyanate in the presence of catalyst comprising a secondary imidazole.  In the production of polyurethane foam products the polyol has terminal hydroxy groups and the secondary imidazole is a 2-alkyl imidazole free from substituents in the 1 and 3 positions, the alkyl group containing 1 or 2 carbon atoms, and the reaction product is formed into a foam by the action of a blowing agent.  The polyol may be an hydroxy polyester being the reaction product of a polyhydric alcohol with a polycarboxylic acid, or an hydroxy polyether being the reaction product of a polyhydric alcohol with a polyhydric alcohol containing only carbon, hydrogen and oxygen atoms. The catalyst can also include a tertiary amine, in particular diaza-bicyclo-octane.  There may further be present an organometallic catalyst such as dibutyltin dilaurate.  2-Methyl, 2-ethyl and 2,4-dimethyl imidazoles are specified catalysts. Blowing can be produced by the presence of water and/or a volatile haloalkane in the reaction mixture.  In examples foams are prepared with 2-methyl imidazole as catalyst from polypropylene glycol mixed with a glycerine polypropoxide triol and also from a polyester.  Polyesters from dimer acids and from polyhydric ether-alcohols can also be used.ALSO:A process of preparing polyurethanes comprises reacting a polyol with an organic polyisocyanate in the presence of catalyst comprising a secondary imidazole.  In the production of polyurethane foam products the polyol has terminal hydroxy groups and the secondary imidazole is a 2-alkyl imidazole free from substitutents in the 1 and 3 positions, the alkyl group containing 1 or 2 carbon atoms, and the reaction product is formed into a foam by the action of a blowing agent.  The polyol may be an hydroxy polyester being the reaction product of a polyhydric alcohol with a polycarboxylic acid, or an hydroxy polyether being the reaction product of a polyhydric alcohol with a polyhydric alcohol containing only carbon, hydrogen and oxygen atoms.  The catalyst can also include a tertiary amine, in particular diazabicyclooctane.  There may further be present an organometallic catalyst such dibutyltin dilaurate.  2-Methyl, 2-ethyl and 2, 4-dimethyl imidazoles are specified catalysts. Blowing can be produced by the presence of water and/or a volatile haloalkane in the reaction mixture.  In examples foams are prepared with 2-methyl imidazole as catalyst from polypropylene glycol mixed with a glycerine polypropoxide triol and also from a polyester.  Polyesters from dimer acids and from polyhydric ether-alcohols can also be used.
Patent GB-506454-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H03B13/00
Filed: 1938-04-20
Abstract: 506,454. Cathode-ray tubes. FARNSWORTH TELEVISION, Inc. April 20, 1938, No. 11834. Convention date, April 27, 1937. [Class 39 (i)] A modulated cathode-ray beam generated by cathode 12, modulator electrode 10 and gun anode 16 is deflected by plates 26, 27 over a pair of targets 21, 22 which intersect substantially equal portions of the undeflected beam and are curved so as to be congruent with the shape which the deflected beam assumes by virtue of the finite velocity of the electrons composing it; as a result the electrons in the beam are collected simultaneously and a sharply peaked impulsive output current is obtained. The output current passes through a tuned circuit comprising a capacitance 44 and an inductance 42 which has an asymmetrical tapping 41. Oscillation is maintained by applying part of the output, through coupling coil 46, to the deflecting plates. Target 22 overlaps target 21 in the direction of electron flow.
Patent GB-633144-A (GB)
Title: Improvements in or relating to supersonic inspection apparatus
IPC: G01N29/28
Filed: 1947-05-02
Abstract: 633,144. Supersonic inspection devices. SPERRY PRODUCTS, Inc. May 2,1947, No. 11848. Convention date, May 21, 1946. Addition to 625,267. [Class 118 (ii)] [Also in Group XXXIX] In supersonic testing-apparatus. of the kind described in the parent Specification, the time of travel of the wave-trains between a crystal transmitter 20 and the object 10 to be inspected is increased by interposing an intermediate waveconducting member 16<SP>1</SP> therebetween, each side wall of the member 16<SP>1</SP> having a contour, the shape of which may be corrugated, stepped, or coned to form a number of reflecting surfaces adapted to reflect waves at a number of angles. In use, subsidiary reflections within the member 161 will not have, as hitherto, a well-defined path which returns to the receiving element, such as the crystal 20, and will not therefore obscure reflections received from a defect 11 which may be quite near to the upper surface 12 of the object.