baber/WOPTO huggingface dataset:
Patent GB-1421648-A (GB)
Title: Induction furnaces for metal heating or melting
IPC: F27D3/18
Filed: 1973-10-24
Abstract: 1421648 Furnace topholes ELECTRICITY COUNCIL 19 June 1974 [24 Oct 1973] 49466/73 Heading F4B A side tapped coreless induction furnace has a crucible with a rammed lining 11 and a lower ring of refractory blocks incorporating an apertured block 15 with a refractory nozzle 17 in the aperture, said nozzle extending inwardly by the width of said lining 11. The furnace is cylindrical with a shell 23 enclosing laminate refractory 22 and the coil 21 supported by the ring of refractory blocks (10, Fig. 1). Two of these blocks are replaced by the apertured block 15 in which the nozzle 17 and holder 18 are interlocked. A launder 20 rests within the bore of the block.
Patent GB-1332065-A (GB)
Title: Burner construction for a flame spectrophotometer
IPC: G01N21/72
Filed: 1971-10-29
Abstract: 1332065 Burner for a flame spectrophotometer TECHNICON INSTRUMENTS CORP 29 Oct 1971 [30 Oct 1970] 50364/71 Heading F4T The Burner.-A burner for a flame spectrophotometer comprises a burner tube 32 communicating with a mixing chamber 12, into which chamber the liquid sample under test is introduced together with a combustion supporting gas or nitrogen through one fitting 28 and fuel gas is introduced through a second fitting; a gas manifold 62 having an inlet 80 for the supply of a combustion supporting gas or nitrogen; and a burner cap 194 attached to the top of the tube 32 and formed with a plurality of vertical bores. As shown in Fig. 1 the cap 194 has a dual form with the gaseous mixture from the burner tube being discharged through central bores 206 and a further gaseous mixture supplied through inlets as 180 into an annular chamber 204 being discharged through outer bores 208 to form a sheath about the central flames. In an alternative embodiment the chamber 204 and inlets as 180 are omitted. The liquid sample is supplied to the mixing chamber through a capillary tube located within an outer tube, and having its outlet adjustable axially in a bore of stepped diameter. The axial adjustment of the inner tube is accomplished by a lead screw having two screw-threaded portions of slightly different pitch engaging a fixed member and a part movable with the capillary tube respectively (Fig. 3, not shown). Control system for the burner.-Fig. 8 shows a control system for supplying the burner with alternative fuels (acetylene or hydrogen) and alternative combustion supporting gases nitrous oxide or air through solenoid-operated three-way valves 264, 262, 260 and 258. These valves may rapidly switch between the two gases being supplied and they are controlled by a cable 250 from a console. In addition valves 254 and 256 are closed by a pressure sensitive switch 252 when the air pressure in a supply line falls below a certain value. Further a photosensitive device 257 closes the valves 254 and 256 in the event of flame-failure. When either of the last two conditions develop the valve 262 is closed against N 2 O flow by an OR gate 263.
Patent GB-1128777-A (GB)
Title: Improvements in electrical circuits responsive to current deviation
IPC: H03K5/01
Filed: 1965-11-29
Abstract: 1,128,777. Non-linear circuits. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). 29 Nov., 1965 [27 Nov., 1964], No. 50595/65. Heading G4G. In a circuit (Fig. 5) producing a voltage signal representing the deviation between a varying current and a threshold current, an image current i proportional to a variable current I flows between terminals 1, 2 in series with a resistor 16 and the emitter/collector circuit of transistor 17 in parallel with resistor 18, across which a voltage u appears representing the deviation, between current i and threshold current i 0  set by polarization voltage 21 applied between the emitter and base of the transistor; which is saturated to short-circuit resistor 18 for i#i 0 , and to present a shunting resistance across this resistor for i > i 0  which increases with the varying current until the transistor blocks, so that for increasing values of i, the resultant values of u are defined by straight lines OA, AB, and BC (Fig. 6); the slope of AB being defined by resistor 18. The energization current may be derived by rectification and smoothing of single - phase A.C. (Fig. 7, not shown) or of 3-phase A.C. through current transformers whose saturation causes curvature of 3C (Figs. 8, 9, not shown).
Patent GB-1209614-A (GB)
Title: A resilient supporting device
IPC: F16F15/067
Filed: 1967-11-07
Abstract: 1,209,614. Resilient mountings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 7 Nov., 1967 [10 Nov., 1966], No. 50603/67. Heading F2S. An instrument holder 3 is mounted on a fundament 13 by at least one pro-compressed compression spring set obliquely to the horizontal, the or each spring being compressed by means arranged between the holder and the fundament, and acting in the horizontal direction. As shown two springs 14, 15 are provided obliquely directed towards each other and are of a size and compression, e.g. provided by steel wire bundles 20, 21, 22, such that the vertical component of the spring force in the longitudinal direction of the springs balances the weight of the holder and such that the springs will behave indifferently or have a relatively small positive spring constant in respect of vertical movements of the holder relative to the fundament such that the support has a low natural frequency in the vertical direction. The pre-compression may alternatively be provided by a system of ball-bearings between the holder and fundament. The pre-compression means lock the holder against rotation about the vertical V, and rotation about the horizontal longitudinal axis H is locked by a system of pulleys 30, 31, 32, Fig. 3 (not shown), mounted on the holder and having a taut wire (33) wound thereon and fixed at its ends to the fundament. The instrument mounting is resiliently mounted in the holder 3 by a diaphragm or bundle of metallic strips arranged between a portion 11 of the mounting and a portion 12 of the holder. For extreme vibrational conditions the above described resilient support having a low spring constant is combined with a second resilient support having a larger and suitably progressive spring constant e.g. a shaped rubber ring 34 between the holder and fundament.
Patent GB-1282289-A (GB)
Title: Glass ceramic honeycomb structures
IPC: F28D7/00
Filed: 1969-10-01
Abstract: 1282289 Glass-ceramic honeycomb structures CORNING GLASS WORKS 1 Oct 1969 [7 Oct 1968] 50630/71 Divided out of 1282288 Heading C1M To transform a glass honeycomb structure into a glass-ceramic honeycomb structure by heating to form nuclei for the growth of crystals by further heating to effect partial crystallization; at least the subsequent heating of the structure is effected by passing hot gas therethrough. The apparatus for such heating is the same as that described in Specification 1,282,288.
Patent GB-964884-A (GB)
Title: Electrophotographic materials and the production thereof
Inventor: CASSIERS PAUL MARIA
IPC: G03G5/07
Filed: 1960-05-05
Abstract: A photoconductive composition comprises a mixture of two or more polymers, at least one of which is photoconductive and at least one of which contains halogen. Specified photoconductive polymers are (a) those mentioned in Specification 964,878 (vinyl polymers and copolymers, and polyesters), (b) polymers and copolymers of polyvinylcarbazole, (c) polymers of vinyl compounds where the vinyl group is attached to an aromatic or heterocyclic nucleus through a divalent organic radical (e.g. methacryloxy and methacryloxyalkyl compounds), (d) vinyl polymers containing a side-chain of the type Ar-(CH=CH)n-CO-(CH=CH)m-Ar where m is 1 or 2 and n is 0 or 1, and (e) reaction products of halogenated polymers with aromatic or heterocyclic compounds. Specified halogen-containing polymers are polyvinyl halides and copolymers thereof, polyvinyl esters of chloroacids, chlorinated and sulphochlorinated polyethylene, rubber hydrohalides, chlorinated rubber, brominated and iodinated poly-N-vinyl-carbazole, iodinated polystyrene, the reaction product of polyvinyl chloride and pyridine, and polyesters of dicarboxylic and disulphonic acids with halogen-containing dihydroxy compounds. There may also be present one of the macromolecular substances mentioned in Specification 964,873, a metal-containing polymer (e.g. the mercuri-acetate of polyvinylcarbazole or of polystyrene), a sensitiser as in Specification 964,873, a plasticizer or one of the other agents mentioned in Specification 964,873. It is preferable but not essential to remove from the halogen-polymer the stabilizers normally present therein. The various polymers can be dissolved or dispersed in an organic liquid and the mixture evaporated. If the product is heated to 50-200 DEG C. an increase in photo-sensitivity is stated to occur. The preparation of the following polymers is described: polyvinylcarbazole, polypropenylcarbazole, brominated and iodinated polyvinylcarbazole, iodinated polystyrene, iodinated copolymer of polyvinylcarbazole and ethyl acrylate, and the condensation products of (a) polyvinylacetophenone with anthraldehyde or N-ethylcarbazole -2- aldehyde, (b) polyvinylacetylcarbazole with N-methylphenthiazine -3- aldehyde, and (c) polyvinyl chloride with fluorene. Specifications 856,770, 883,312 and 916,660 also are referred to.
Patent GB-1194577-A (GB)
Title: Improvements in or relating to Raking Implements
IPC: A01D78/00
Filed: 1967-11-09
Abstract: 1,194,577. Raking implement; couplings. TEXAS INDUSTRIES Inc. 9 Nov., 1967 [1 Dec., 1966], No. 51044/67. Headings A1F and A1P. A raking implement comprises a frame, a plurality of rake wheels 5 carried on ends of arm 3 and beams 4, arms 8, 13 for connection to the hitch of a tractor, and is characterized in that the upper arm 13 is pivotally connected both at 12 to lugs 11 upstanding from horizontal frame beam 1 and at one of holes 15 to a horizontal rod 17 having a compression spring 21 held between a slidable block 18 and a washer and nut 22. The block 18 is vertically adjustable between plates 20 projecting upwards from a frame beam 2, by holes 23 and pin 24. The arms 8 are pivoted to sector plates 6 and are angularly adjustable by pin 9. The implement connected to a hitch at pins 10, 27 can readily match undulations in the ground.
Patent GB-1206765-A (GB)
Title: Polymer sheet with predetermined film areas and interconnecting fibrous areas and its method of manufacture
IPC: B29C59/04
Filed: 1967-11-09
Abstract: 1,206,765. Polymer sheet having film areas interconnected by fibrous areas. JOHNSON & JOHNSON. 9 Nov., 1967 [17 Nov., 1966], No. 51083/67. Heading B5B. [Also in Division D1] Thin sheet material or film comprising a predetermined pattern of film areas of a crystalline orientable thermoplastic polymer, said film areas being integral with and interconnected by fibrous areas of the same polymer may be produced by forming a film (particularly by melt extrusion) of the polymer, and imparting to the film either during its formation or by subsequent treatment a predetermined pattern of areas which resists orientation to a greater extent than does the remainder of the film, stretching the film in a direction and at a stretch ratio sufficiently high to highly orient some areas of the film but not of such magnitude as to fully orient those areas of the film having a greater resistance to orientation and treating the film to fibrillate the highly oriented areas of the film, i.e. to split the film in this area into fibres so that the areas become fibrous. The direction in which the film is stretched may be longitudinal and the treatment for fibrillating the highly oriented areas may be in the transverse direction or vice versa. If the direction in which the film has been stretched prior to fibrillation is longitudinal, the film after fibrillation may be stretched transversely to open the fibrous areas and orient or further orient some film areas. If the film has been stretched transversely prior to fibrillation it may be stretched longitudinally to open the fibrous areas and further orient some film areas. The original film may be formed to have thin areas which are readily orientable and a pattern of thick areas which resist orientation. Alternatively, the original film may have uniform thickness and may subsequently be treated in a predetermined pattern to produce film areas which resist orientation to a greater extent than the remainder of the film. The film polymer may be polyethylene, polypropylene, a polyamide or a polyester.
Patent GB-1293419-A (GB)
Title: Vehicle roll and sway control system
Inventor: GARATE JULIAN CHARLES
IPC: B60G21/00
Filed: 1970-10-29
Abstract: 1293419 Controlling vehicle body roll J C GARATE, B K PRESTON and C V PRATHER 29 Oct 1970 [10 Nov 1969] 51583/70 Heading B7D In a vehicle including a frame 12 supported by leaf springs 20 on an axle 18 carrying rear wheels 24, anti-roll means 28 provided at each end of the axle comprise a first arm 30 secured to the axle casing 44, a second arm 32 pivotally mounted on the arm 30 and connected to the frame 12 by a flexible cable 76, a pre-loaded coil spring 70 interposed between the arms 30, 32 and a pair of links 88, 90 which limit pivoting of the arms 30, 32 in a direction away from one another. The length of the cable 76 is adjusted so that there is slight slack in the static laden condition whereby small up and down movements of the axle are unaffected but further downward movement of the axle is resisted by compression of the spring 70 which opposed the action of the adjacent leaf spring 20. A tension spring 102 acts on the links 88, 90 to "break" the links when the cable 76 applies an upward force to the arm 32. In another embodiment, Fig. 8 (not shown), the first arm is one limb of a C-shaped member secured to the vehicle frame and the second arm is connected by a cable to the axle.
Patent GB-1323515-A (GB)
Title: Pilot tone control arrangements
IPC: H04B14/00
Filed: 1971-11-09
Abstract: 1323515 Radio signalling LICENTIA PATENT-VERWALTUNGS-GmbH 9 Nov 1971 [10 Nov 1970] 51903/71 Heading H4L Means are provided for suppressing level due to echo interference fluctuations in the baseband of a F.M. transmission system. A pilot tone is transmitted with the baseband signals and controls the reflection factor of a delay network at the receiver to add to the transmission path a distortion reducing echo having a fixed delay and being substantially in antiphase to said echo interference. As shown, at the receiver the delay network T e  is connected at point P in the path E to A of the frequency-modulated signal, its delay being selected in accordance with the mean value of the delays of the interference echoes. The pilot tone is selected by a demodulator FD and bandpass filter BP, rectified at G and via a low pass filter TP provides a reference voltage Up representing the mean value of the pilot tone. The pilot tone is also sampled after the point P by demodulator FD<SP>1</SP> and bandpass filter BP<SP>1</SP> and rectified at G<SP>1</SP> to provide a voltage representing the instantaneous amplitude of the pilot tone. These two voltages are compared and any difference signal is amplified at V to control the reflection factor r e  of the distortion reducing echo. In a modification, Fig. 2 (not shown) the circuit elements FD to TP preceding the point P are dispensed with and a high pass filter receives the output of rectifier G<SP>1</SP> to control the reflection factor r e  directly via amplifier V.
Patent GB-1335691-A (GB)
Title: Circuit for changing the character height and width in a system  for displaying characters
IPC: G06F3/153
Filed: 1970-11-03
Abstract: 1335691 Cathode-ray tube displays IWATSU ELECTRIC CO Ltd 3 Nov 1970 [22 Nov 1969] 52338/70 Heading H4T A circuit for varying the height and width of characters on a display surface comprises means 2 for generating character pulses every N clock pulses, monostable multivibrators 3 having adjustable time constant circuits to vary character width and height output pulses and pulse generators which generate dot pulses corresponding to the character width and height pulses by adjusting frequency determining elements C2 in the generators. The outputs from the generators is applied to pulse shapers, e.g. Schmitt triggers and the outputs from these is applied to the horizontal deflection circuit of a C.R.T. The multivibrators each comprise a pair of transistors Q 1 , Q 2  and an adjustable capacitance C 1 .
Patent GB-1206050-A (GB)
Title: The manufacture of hollow articles from polyethylene compositions; and the resulting articles
Inventor: HORSLEY ROBERT ALFRED
IPC: B29C51/00
Filed: 1968-11-06
Abstract: 1,206,050. Sheet forming. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 6 Nov., 1968, No. 52536/68. Addition to 1,202,728. Heading B5A. [Also in Division C3] In the cold drawing process claimed in claim 1 of Specification 1,202,728, the working material is either a polyethylene or an ethylene-rich copolymer containing a plasticizer which when blended with the polyethylene or the copolymer reduces its modulus of elasticity by at least 30%, or a polyethylene or an ethylene-rich copolymer having a density within the range 0À91 to 0À94 gms./c.c., a melt index within the range 0À11 to 4 gms./10 mins. at 190‹ C. under an applied load of 2À16 kgs. and a melt index/ intrinsic viscosity relationship such that for a given polymer having a melt index in said melt index range the intrinsic viscosity is greater than that indicated by the appropriate point in the line in the graph constituting Fig. 1 of the drawing. Examples of suitable plasticizer containing polyethylene working materials are polyethylene containing 3 or 10% of calcium stearate; polyethylene containing 3 or 10% of propylene; polyethylene containing 3 or 10% of mineral oil known as " Risella " (Registered Trade Mark); polyethylene containing 3 or 10% of dioctylphthalate; polyethylene containing 3 or 10% of microcrystalline wax; polyethylene containing 3 or 10% of a mixture of C14-C16 alkyl benzenes; or polyethylene containing 3 or 10% ethylene-propylene rubber. Suitable ethylene rich copolymers are those in which ethylene and butene-1 are reacted under a Ziegler lowpressure polymerization process, specific percentages of ethylene and butene-1 are 78À5 and 21À5, 85 and 15, and 89 and 11.
Patent GB-1037168-A (GB)
Title: A new peptide and production thereof
IPC: A61K38/22
Filed: 1964-12-28
Abstract: Histidylphenylalanylarginyltryptophane is prepared by reacting a protected derivative of histidine with a protected tripeptide phenylalanylarginyltryptophane and removing amino and carboxylic protecting groups.  The amino acid residues may be in the L-, D-, or DL-forms.  Starting materials prepared include BOC-Phe-(Tos)Arg-Try-OBz from BOC-PheOH; CBO - (Tos)ArgOMe, H(Tos)ArgOMe; BOC-Phe-(Tos)ArgOMe, free acid, hydrazide and azide; HTryOBz tosylate and free base; and BOC - Phe - (NO2)Arg - Try - OBz from BOC-(NO2) - ArgOH; BOC - (NO2) Arg - Try - OBz, and H(NO2)Arg-Try-OBz.  Reference has been directed by the Comptroller to Specification 872,332.
Patent GB-1392020-A (GB)
Title: Spiro ketones and their use in odorant compositions
IPC: C07C45/00
Filed: 1973-11-14
Abstract: 1392020 Perfumes L GIVAUDAN & CIE SA 14 Nov 1973 [15 Nov 1972] 52879/73 Heading A5B [Also in Division C2] Odorant compositions contain a compound of the formula where R<SP>1</SP> and R<SP>2</SP> are H or alkyl of 1-6 carbon atoms and one of the three broken lines denotes an additional bond.
Patent GB-1237429-A (GB)
Title: Production of a homogeneous granulated mixture of polypropylene and polyethylene
IPC: C08J3/00
Filed: 1968-11-08
Abstract: 1,237,429. Polyolefin granulates. BADISCHE ANILIN & SODA FABRIK A.G. 8 Nov., 1968 [11 Nov., 1967], No. 53024/68. Heading C3P. Homogeneous granulates are prepared by intensely kneading a mixture of (a) 100 parts by weight of a granular polypropylene of particle size 0À2 to 4 mm., an intrinsic viscosity of 3 to 10 dl./g. and 10 to 30% soluble in boiling heptane, and (b) 70 to 130 parts by weight of a granular polyethylene of particle size 0À2 to 4 mm. and intrinsic viscosity of 2 to 4À5 dl./g., at 250‹ to 350‹ C. for 0À5 to 5 minutes and granulating the product.
Patent GB-1534747-A (GB)
Title: Roll assembly with magnetic means for compensating for deflection
IPC: F16C13/00
Filed: 1976-12-20
Abstract: 1534747 Rollers VALMET OY 20 Dec 1976 [31 Dec 1975] 53105/76 Heading F2U In a deflection-compensating roll having a roll shell composed of two coaxial tubular portions 22, 23, rotatable upon a stationary tubular axle member 21, a series of magnetic means 27 are disposed between the members 22 and 23, and a further series of magnetic means 24 are disposed within the axle, thereby producing mutual magnetic fields which provide magnetic attraction forces between the inner shell member 23 and a lower pole-piece 25b<1> of axle 21, and magnetic repulsion forces between member 23 and an upper pole-piece 25a<1>. The roll shell may thus be bowed upwardly, to oppose sagging deflection. The magnetic means 27 may be permanent magnets, or may comprise cores energized by electromagnet windings 28 fed through slip-rings 44 from a supply 41. Electromagnet windings 26 on cores 24 may be supplied through separate control means 43 from one general controller 42, by means of which the magnetic field may also be reversed to release the nip, when required.
Patent GB-1215247-A (GB)
Title: Improved recording members
IPC: G03G19/00
Filed: 1968-11-12
Abstract: 1,215,247. Magnetic printing. E.I. DU PONT DE NEMOURS & CO. 12 Nov., 1968 [13 Nov., 1967], No. 53653/68. Heading B6C. [Also in Divisions C7 and H1] A thermomagnetic recording member comprises a film transparent to an exposing radia tion (i.e. transmitting 10-90%) containing a plurality of discrete indented areas arranged in a substantially regular pattern and containing discrete magnetic elements, the elements being provided with a coating of reflective material capable of shielding them from exposing radiation incident upon the coating in a direction normal to the plane of the film. The elements are capable of being magnetized to a hard state such that (BH) max  = 0À08-8À0 x 10<SP>6</SP> gaussoersteds, B r  = 500-21,500 gauss, He = 40- 6000 oersteds, and Curie point less than 1200‹ C. Specified reflective coatings are Au, Ag, Cu, Al, Cr, Ni, Fe, Ir, Pt, In, Sb, TiO 2  and MgO 2 . The magnetic material may be a ferrite or an alloy, and the transparent film a synthetic polymer. One recording member (Fig. 1) comprises a visible-light transparent film 1 bearing indentations filled with magnetic material 2 and coated with reflective material 4. Incident radiation 7 passes through the member to document 5 bearing portions 6 of different reflectivity. The structures may be made by coating with reflective material a film bearing impressed indentations removing by abrasion the reflective material lying within the indentations, and filling the coated indentations with particulate magnetic material in a binder. Examples describe the production of recording members consisting of (1) CrO 2  magnetic elements coated with silver and embedded in a polycarbonate film; (2) CrO 2  elements coated with TiO 2  in a cellulose acetate film.