baber/WOPTO huggingface dataset:
Patent GB-638432-A (GB)
Title: Improvements in and relating to phase shifting circuits
IPC: H03H7/20
Filed: 1947-07-02
Abstract: 638,432. Phase changing. BRITISH THOMSON-HOUSTON CO., Ltd. July 2, 1947, No. 17478. Convention date, May 9, 1944. [Class 38 (ii)] A continuous phase-shift of 360 degrees is obtained by shifting tappings 15 and 11 in the circuit shown in Fig. 1, the load circuit being connected between points 12 and 13. Fig. 2 shows an arrangement by which rotation of an arm carrying these tappings will make the necessary changes in correct sequence, the resistance 14 being replaced by resistances 16, 17 in parallel. These resistances may have an approximately logarithmic taper to render the phase-shift uniform with angular movement.
Patent GB-315076-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B7/02
Filed: 1928-06-16
Abstract: 315,076. Camp, K. June 16, 1928. Photometric apparatus.-A photometer mounted on the front 10 of a camera to enable the user to obtain a direct view of the object to be photographed comprises a tube 11 bisected longitudinally by partitions 25, 26, 27. One half of the tube receives light at its lower end from the object to be photographed and the other half is provided with a cover 14 behind which is a reflector 17 directing light from an electric lamp 18 into the tube. A disc 15 having half of its area opaque- and the other half transparent is rotatably mounted at the lower end of the tube and, in operation, is turned by the observer looking through the conical extension 28 of the tube until a diffusing screen 24 at the upper end of the tube is seen to be uniformly illuminated. A disc 20 similar to the disc 15 and intended to be set according to the time of exposure to be given, may be mounted in the length of the tube. The disc 15 is connected to the diaphragm-adjusting ring 3 so that the setting of the disc automatically controls the diaphragm aperture.
Patent GB-790793-A (GB)
Title: An installation comprising two or more hydraulic presses
IPC: B29C45/67
Filed: 1955-06-17
Abstract: 790,793. Welding by pressure; casting- machines. CKD CESKA LIPA, NARODNI PODNIK and VLTAVSKY, M. June 17, 1955 [Aug. 19, 1954], No. 17518/55. Classes 83 (1) and 83 (4). [Also in Group XXIX] In an hydraulicallyoperated machine, for example an injectioncasting machine or a resistance welding machine, the workpieces, or moulds, are clamped at a basic working pressure while heating and melting takes place, the clamping pressure being increased just prior to the compression of the workpieces or injection of the metal. The basic clamping pressure is applied to clamping cylinders 1, 2 by a pump 9, the pressure being determined by the setting of a throttle 13 in a by-pass line. Shortly before completion of the melting operation, or injection of the metal, a valve 12 is actuated to prevent flow through the throttle 13, and the pressure in the cylinders 1, 2 builds up until it actuates a valve 10 and liquid is supplied to a compression-cylinder or injection cylinder 5 at a pressure determined by a valve 11.
Patent GB-649027-A (GB)
Title: Improvements in or relating to production of 5-nitro-2-furaldehyde semi-carbazone
IPC: C07D307/76
Filed: 1947-07-03
Abstract: 5 - Nitro - 2 - furaldehyde semicarbazone is prepared by reacting 5-nitrofurfural diacetate with semi-carbazide hydrochloride in the presence of water and a strong mineral acid under the influence of heat.  The acid concentration is preferably about 5 per cent by volume of the mixture.  In carrying out the reaction, the nitro - furaldehyde diacetate is added to an aqueous solution of semicarbazide hydrochloride and the mineral acid and the mixture is heated with stirring until a temperature within the range of 80 DEG to 90 DEG  C. is attained; further heating is not required.  After the reaction, the mixture is cooled and crystalline nitro-furaldehyde semicarbazone removed by filtration.  The preferred mineral acid is sulphuric acid but nitric, hydrochloric or phosphoric acid may also be used. Preparation of the reaction solution is facilitated by addition of a quantity of ethyl alcohol to the water.  An example is given.
Patent GB-179851-A (GB)
Title: Improvements in split pulleys
IPC: F16H55/46
Filed: 1921-06-28
Abstract: 179,851. Manning, W. J. June 28, 1921. Pulley and driving-drums.-The halves of a split pulley are secured together by spokes 4 provided with a collar 10 and screwed nut 9, between which the halves of the boss are gripped.
Patent GB-880884-A (GB)
Title: Improvements in or relating to dust conveying systems
IPC: B65G53/52
Filed: 1959-05-25
Abstract: 880,884. Pneumatic conveyers. MITCHELL ENGINEERING Ltd., and JAMES, D. A. April 5, 1960 [May 25, 1959], No. 17697/59. Class 78 (1). In a conveyer for pulverized fuel which distributes fuel laden gas from a single pulverizing mill to a number of burners, a distributer forms part of the conduit and is so constructed that, after division, the streams of dust-laden gas contain like quantities and grades of fuel and like quantities of gas. The distributer comprises concentric cylinders 10, 13 which are connected by twelve radially-extending helical vanes 14. A series of vanes 15 of opposite hand project from the inner surface of the cylinder 13. Each vane 14 extends through 60 degrees, but each vane 15 extends through twice that angle. The end 12 of the distributer is bolted to the outlet from a fan and the end 11 is bolted to a piece having several outlet branches leading to burners.
Patent GB-1041285-A (GB)
Title: Improvements in or relating to miniature lamp holders
Inventor: GREASLEY ERIC ARTHUR
IPC: B60Q3/04
Filed: 1964-04-29
Abstract: 1,041,285. Miniature lampholders. PRESSAC Ltd. March 25, 1965 [April 29, 1964]. No. 17718/64. Heading H2E. The casing 1 and contact sleeve 5 of a lampholder have circumferential flanges 3 and 4 respectively which are clamped together by an insulating bush 6, in the form of a split ring as described in Specification 1,041,284. A ring 8 provided with a plurality of springy tongues 9 is then positioned on top of the bush 6 and the four parts of the lampholder secured together by a retaining ring 10, the lower edge of which is bent under the flange 3 (Fig. 2, not shown). The casing 1 may contain a spring-loaded contact for contacting the base terminal of a bulb.
Patent GB-203109-A (GB)
Title: Improved process and apparatus for preserving foods or the like
IPC: A23L3/42
Filed: 1922-06-28
Abstract: 203,109. Plauson's (Parent Co.), Ltd., (Plauson, H.). June 28, 1922. Extracts, making.-Meat, fish, proteins, blood, milk, yeast, and other easily damaged materials are preserved by drying by means of the vapour of alcohol or ether, particularly at low pressures and temperatures. The material to be treated, enclosed or not in a vessel 4, is placed in a rotary chamber 3 enclosed in a steam-jacketed vessel 1. Alcohol or ether vapour is introduced by a pipe 14 and withdrawn by a pipe 5, the end of which is protected by a strainer 6. The vapour is removed by a pump 24 and passed to a vessel B kept by a cooling coil at a temperature between 15 and 35" C. The water solidifies to snow and is separated from the alcohol by a filter 28, which is made of wire net packed with cement, gypsum, or filter cloth. The alcohol is withdrawn by the other end of the pump 24 and passed, if necessary through an absorber 36, to a reservoir C whence it passes to an evaporator D which supplies the drying chamber. The apparatus shown may be used to effect a preliminary extraction, as of lecithin from eggs, before the drying takes place.
Patent GB-429967-A (GB)
Title: Improvements in the regulation of the mixture of air and fuel in carburetters for internal combustion engines
IPC: F02M19/02
Filed: 1934-06-15
Abstract: 429,967. Spray carburetters. WEBER, E., 3A, Via Cairoli, Bologna, Italy. June 15, 1934, No. 17771. [Class 7 (iii)] Consists in a device to be applied to the main carburetter to facilitate starting and slowrunning and to weaken the mixture during normal running when maximum power is not required or at high altitudes and, at times, to supplement the main mixture supply. The main carburetter has a Venturi 51, Fig. 2, surrounding the main nozzle, and a throttle valve 50. At the side of this carburetter is fitted a casing 1 containing a toothed member 3 adapted to be actuated by a pinion 4 and arm 5 and carrying at its extremities valves 9, 10, the valve 9 being elastically connected to the member through a spring 8. The upper end of the casing communicates through a passage 6 with the induction pipe above the throttle valve 50, and the lower end through a passage 14 with a space around the Venturi 51, these passages being controlled respectively by the valves 9, 10. Below valve 10 is a ported plate 15 leading to a pipe 17 in communication with the main air inlet. The upper part of the casing 1 communicates also through a duct 12 and either of holes 23, 24, with the interior of a regulator 13 which can be rotated through 180‹ and held in either of the two positions by spring-pressed balls 20. Within the regulator is a tube 31 adapted to be moved axially by suction, and having a bore 34 with enlargements 37, 49 at its ends. The tube has lateral passages 38, 39, 35 and, on its outer surface, recesses 36, 361 are formed. The lower end 49 of the tube encircles a fuel nozzle 46, fed from the float chamber through a passage 44 and adapted to furnish the fuel for starting. In the position shown, the regulator 13 occupies the " summer setting," the " winter setting " being obtained by rotating the regulator so as to close the hole 28 and replace the aperture 23, opposite conduit 12, by the larger aperture 24. For normal running, both valves 9, 10, Fig. 2, are closed ; to weaken the mixture during normal running, the member 3 is lowered, thereby opening valve 10 and admitting air. If additional mixture be required during normal running, the member 3 is moved to the position shown in Fig. 3. The Specification describes the movements of the member 31 and the resulting mixture strengths produced thereby.
Patent GB-717837-A (GB)
Title: Recharging shuttles of a circular loom
IPC: D03D37/00
Filed: 1951-07-27
Abstract: 717,837. Automatic bobbin changing in circular looms. QUALITEX-SOC. DUNOD & CIE. July 27, 1951 [July 27, 1950], No. 17820/51. Class 142(2) The bobbins in all the shuttles are changed simultaneously by bringing all the warp threads to the inner shed line as described in Specification 677,716, and placing a fresh bobbin in the path of each shuttle, there being as many weftreplenishing mechanisms as there are shuttles; the shuttle 72, Fig. 10, deposits the empty bobbin on a peg 90a and takes the fresh bobbin 68 from a peg 90, the weft 69 being lifted by a hook 91 so as to engage in the tail of the shuttle as described in Specification 685,112. The pegs 90, 90a are then withdrawn from the path of the shuttles by a pneumatic cylinder 98 to bring the peg 90 over a channel 167 carried by a hydraulic cylinder 89. A hammer 87 ejects a bobbin from a rotary magazine (not shown) into the channel 167 which is then moved to the right to impale the bobbin on the peg 90; a hydraulically-operated pusher 89a removes the empty bobbin from the peg 90a, so that it rolls down an inclined plate 133. The weft ends of the bobbins in the magazine pass over the periphery of a flange 86, Fig. 4, and are anchored to a knob (not shown); when the magazine turns after a bobbin has been inserted in a shuttle, the weft 69 is cut by jaws 85 rubbing permanently against the flange.
Patent GB-477364-A (GB)
Title: Improvements in or relating to the polymerisation of organic liquids
IPC: B29C39/38
Filed: 1936-06-26
Abstract: <PICT:0477364/IV/1> Organic liquids are polymerized to produce solid shapes by heating the initial material in an elongated mould closed at one end, under such conditions that the material tends to occupy the entire cross-section of the mould, and advancing the heating zone along the mould so that active polymerization is confined to a narrow section or layer adjacent to the heating zone.  As shown in Fig. 1, an aluminium mould 3, closed at its lower end and containing the liquid 4 to be polymerized, is moved vertically relatively to a vessel 1 containing a heating liquid 2, e.g. water, the movement being continuous or step-by-step.  A cooling fluid may be circulated around the mould above the surface of the liquid 2, and the contents of the mould are preferably subjected to pressure of 50--300 lb. per square inch by closing the top of the mould and connecting it to a tank of compressed nitrogen or other inert gas. Fig. 3 shows a modification in which a horizontal mould 3, closed by a cap 8 and connected to a supply of liquid to be polymerized in turn connected to a source of gas pressure, is moved horizontally through an insulating-screen 10 past hot and cold sprays 12, 13.  Heating may be effected by coils, jackets or electrical means.  Colouring matters, plasticizers and polymerization catalysts may be mixed in the liquid. Preferably, a viscous solution of polymer dissolved in monomer is employed. Examples are given of the production of elongated shapes from syrups of methyl methacrylate and of styrene containing benzoyl peroxide as catalyst.  Articles may be freed from the moulds by further heating of the mould to cause shrinkage of the polymer, or by chilling the mould.  Specified materials, particularly for turnery shapes, are the methyl-, ethyl-, butyl-, isobutyl-, secondary butyl, tertiary amyl-, phenyl-, glycol mono- and di-, cyclohexyl-, paracyclohexylphenyl-, deca-betanaphthol-, di-isopropyl carbinol-, furfuryl-, and tetrahydrofurfuryl methacrylates; methacrylonitrile; styrene; alpha methyl styrene; divinyl benzene; vinyl acetate and butyrate; vinylchlorbenzene, naphthalene, and ethinyl carbinol; methyl vinyl ketone; dimethyl itaconate; and dimethyl acetylene. Interpolymers, e.g. vinylacetate-vinyl chloride, may also be employed.  Softer resins which may be polymerized to elongated shapes are the methyl-, ethyl-, and butyl acrylates; diethyl fumarate or maleate; and divinyl ether.
Patent GB-188620-A (GB)
Title: Improvements in the cooling of internal combustion engines
IPC: F01P5/10
Filed: 1922-06-30
Abstract: 188,620. Research Association of British Motor & Allied Manufacturers, and Rowell, H. S. June 30, 1922. Cylinders, cooling.-The water pipe leading from the top of the cylinder jackets to the top of the radiator is lagged to improve the circulation.
Patent GB-802758-A (GB)
Title: Improvements relating to electromagnetic switching devices
IPC: H01H51/22
Filed: 1956-06-12
Abstract: 802,758. Electromagnetic relays. BRISTOL CO. June 12, 1956 [June 14. 19551, No. 18097/56. Class 38 (5). A relay comprises a non-magnetic support 20 centrally apertured at 23 and having a stem 22 to the flat face of which is secured a reed armature 25. A control coil 30 receives the stem 22 whilst the free end of the armature extends through an air gap 37 formed between T- shaped cores 35, 36 polarized by magnets 39, 40. The magnet assembly is clamped between the support 20 and a U-shaped block 41 insulatedly carrying on its two limbs strip contacts 43, 44 co-operating with a double-faced contact 26 carried by the armature. The contacts 43, 44 are adjustable by screws 47, 48 threaded in the block 41 and engaging the contacts with glass beads 49. Connection to the contact 26 is made by a resilient wire 28 having its other end positioned in the slot of a forked member 52 insulatedly mounted on the block 41, the wire 28 lightly bearing on the end of a damping arm 53 fixed to the fork 52. Normally, when the armature moves in the air gap 37 the wire 28 flexes so that there is no sliding movement between it and the arm 53; should, however, the armature tend to vibrate at its resonant frequency its increased amplitude causes a dissipation of energy by friction between the wire and arm and resonance is prevented. The wire 28 may be stressed to bias the armature against one of its contacts 43, 44. The contacts are surrounded by an electrostatic shield 59a and the whole device may be enclosed in a sealed gas-tight magnetic can having connecting pins for mounting in a socket (Fig. 4, not shown), the can providing a return path for the flux produced by the coil 30. According to Fig. 5 the device is enclosed in a non-magnetic can 65 surrounded by a magnetic can 66 having an enlarged diameter portion 67 extending over about 90 degrees. The can 66 shunts a small part of the permanent magnet flux and thus by rotating it the portion 67 may be adjusted to produce exact symmetry of flux on both sides of the armature in the air-gap 37. In a modification (Fig. 9, not shown) the upper end of a non-magnetic sealed can enclosing the magnet assembly and contacts is of reduced diameter and surrounded by a pair of operating coils which may act in support of each other or in opposition. The relay may be energized by D.C. to move the armature in the appropriate direction or by A.C. to vibrate the armature. Specification 703,772 is referred to.
Patent GB-1058394-A (GB)
Title: Improvements in and relating to pure fluid comparators
IPC: F15C1/14
Filed: 1964-05-01
Abstract: 1,058,394. Regulating fluid flow. R.E. BOWLES. May 1, 1964 [May 31, 1963], No.18107/64. Heading G3H. A pure fluid comparator comprises a pair of inlet nozzles 14a, 15a whose axes lie at angles of less than 90 degrees to a centre line C-D, and a pair of output ducts 25, 26 separated by a divider 22. Vents 33, 34 equalize the pressures in the two output ducts which have walls 20, 21 set back from the nozzles 14a, 15a to prevent boundary layer effects in the fluid, liquid or gaseous, flowing to the output ducts. Alternatively, the vents 33, 34 may be omitted and the walls 20, 21 disposed sufficiently close to the interacting fluid streams to cause boundary layer effect to operate, in which case the outflow tends to be concentrated in one or other of the output ducts rather than to be distributed in proportion to the pressures in the two inlet nozzles 14a, 15a. One of the inlet nozzles may be supplied with a variable pressure for. comparison with a reference pressure fed to the other nozzle. The device may be given a bias towards one or other outlet duct by altering the angles of the inlet nozzles or shifting the divider 22.
Patent GB-624762-A (GB)
Title: Method of and means for removal of fumes created in welding operations
IPC: B08B15/02
Filed: 1947-07-09
Abstract: 624,762. Dust confining in industrial processes. STEWART, SIR F. C. July 9, 1947, No. 18126. [Class 8(ii)] A method of removing the smoke and fumes created during welding, particularly of galvanized articles, consists in discharging air upwardly under pressure from apertures in a working table upon which the welding is being carried out. In one form of the apparatus, a table 10 is provided with a chamber 16 which is supplied with air through a duct 15. The air escapes upwardly through peripheral apertures 11 in the table top and can be directionally controlled by the deflecting lips 12. The screen of air, which may be be heated, carries smoke and fumes away from the welder and preferably discharges into an overhead exhaust canopy 13. In Fig. 2, (not shown), the apertures 11 are replaced by perforations arranged over all or part of the table top.
Patent GB-275198-A (GB)
Title: Improvements in and relating to power plants
IPC: F01K19/02
Filed: 1927-07-08
Abstract: 275,198. Fescara, R. P. July 29, 1926, [Convention date]. Power-generating systems. -A turbine 12 or steamengine is included in a closed circuit comprising a steam reservoir 3 from which steam is led to a motor compressor unit 15 of the kind described in Specifications 235,581, 237,254, 250,419, [all in Class 7 (vi), Internal-combustion engines, Valves &c. for], 268,773 and 268,782, [both in Class 8 (i), Air and gases, Compressing &c.], the compressed steam being led through a coil 8 heated by the exhaust gases supplied by a pipe 7 from the motor-compressor. The superheated steam flows through a pipe 11 to the turbine 12 and passes through a cooler 13 back to the reservoir 3. Steam losses are made good by a steam generator 1 supplying the reservoir 3 through a regulating valve 14.
Patent GB-1040086-A (GB)
Title: Method for consolidating material
Inventor: WALTHER HERBERT CARL
IPC: C09K8/56
Filed: 1965-04-29
Abstract: 1,040,086. Consolidating earth formations. CONTINENTAL OIL CO. April 29, 1965, No. 18134/65. Heading E1F. An organic partly polymerised resin is treated with a coupling agent which is first placed in situ in an incompetent formation. Generally the coupling agent is a Wener complex or an amino alkyl ethoxysilane. The formation can be flushed before and after the treatment or treated with a plugging retardent.
Patent GB-1430803-A (GB)
Title: Centrifuges
IPC: B04B11/08
Filed: 1973-04-16
Abstract: 1430803 Centrifugal strainer and operation thereof MASCHINENFABRIK BUCKAU R WOLF AG 16 April 1973 [19 April 1972] 18274/73 Heading B1D A centrifugal strainer drum is filled via a tube 6 while the drum accelerates from rest to a given velocity and runs at said velocity, and the drum may subsequently accelerate to a higher velocity for straining. The drum has limited perforate zones 2, and tube 6 has an inclined elbow bend and a downwardly directed outlet end 9 shielded by a baffle 8 which directs incoming suspension downwardly and tangentially in a fan-like manner.
Patent GB-1040845-A (GB)
Title: Improvements in or relating to ball-and-socket joints
IPC: B60G7/00
Filed: 1963-05-09
Abstract: 1,040,845. Ball joints. SOC. ANON. ANDRE CITROEN. May 9, 1963 [May 14, 1962], No. 18377/63. Heading E2F. In a joint of the type in which relative oscillation between the ball and the socket takes place mainly in one plane, the ball 1 is seated in ogival recesses in a pair of externally conical half-seats 3 which are held against an elastic pressure member 5 in a complementary conical recess in a socket part 4 by a locking member 6, contact between the ball and each half-seat being made substantially along a circle 10 located in a plane which is oblique but only slightly inclined to the plane of oscillation of the joint. The locking member 6 is secured in position by a catch 7.