baber/WOPTO huggingface dataset:
Patent GB-811933-A (GB)
Title: Improvements relating to the catalytic desulphurisation of petroleum hydrocarbons
IPC: C10G45/24
Filed: 1955-03-11
Abstract: Gas oil is autofined under the equilibrium pressure method and using a fluorine-promoted catalyst, at a temperature of 810 DEG  F. and a space velocity of more than 2 v.v/hr.  The catalyst comprises the oxides of cobalt and molybdenum as such or in combined form incorporated with a metal oxide support, e.g. alumina, and has a fluorine content of 2.5-3 per cent.  In the example, gas oil is autofined, using a recycle rate of 2000 SCF/B and a space velocity of 4 v.v/hr.  Specifications 654,152, 663,038, 669,536, 669,552, 669,553, 697,083, 697,222, 697,226, 697,724 and 719,627 are referred to.
Patent GB-1248308-A (GB)
Title: On-off thermostat control device for a power using means such as a heater
IPC: G05D23/24
Filed: 1969-02-11
Abstract: 1,248,308. Transistor oscillators. BILLMAN-REGULATOR A.B. 11 Feb., 1969 [12 Feb., 1968], No. 7289/69. Heading H3T. [Also in Division G3] A thermally operated oscillator comprising transistors T 1 , T 2  arranged in a flip-flop configuration is connected into -a bridge network responsive to temperature in an automatic control system in which a thermistor R TH  is the responsive element. The bridge network is supplied with full wave rectified A.C. voltage and dependent on the bridge condition either T 1  or T 2  will switch on. Below a determined temperature transistor T 2  will conduct each half-cycle, thus rendering another transistor T 3 , a thyristor T 4 , and a triac T 5  conductive which energizes a heater B. During conduction of triac T 5  the primary winding of a transformer Tr is shunted, reducing the voltage across the bridge network. Above the determined temperature the transistor T 1  is-rendered conductive each half-cycle, which inhibits conduction of T 2 -T 5 . During successive-half-cycles in .this condition, a heater R 3  warms transistor T 2 , hence lowering its " switch on " voltage until it conducts with consequent energization of the heater B. As the heater. R 3  cools due to-the shunting of the bridge-network transistor T 1  eventually reconducts,hence the heater B is periodically switched on and off a suggested time being about ten seconds. A thermistor R TK  may be included in the bridge network to provide ambient temperature compensation, but this may be replaced by an ordinary resistor.
Patent GB-414165-A (GB)
Title: Improvements in door and like latches
IPC: E05C3/14
Filed: 1933-03-11
Abstract: 414,165. Door latches. HARRISON, E., 2, Lathom Street, Bury. March 11, 1933, Nos. 7383 /33 and 7365 /34. [Class 44.] The retaining strap d for a pivoted door latch a is provided with an inclined guide d<1> at its upper part so that when the latch bar is lifted, as by a thumb lever, the bar is also moved backwards to lie over a ledge f formed on the back member of the strap and thus the latch bar remains lifted until such time as the door is again closed, whereupon the latch bar is dropped by its end engaging the hook plate on the doorway frame and so moving the bar off the ledge f. To lock the latch the strap may have an elbow slot into the horizontal part of which is slid a stud slidably mounted on the latch bar ; alternatively the inclined guide d<1> may be formed on a disc which can be turned 180‹ to act as an abutment preventing the latch rising.
Patent GB-287170-A (GB)
Title: Improvements in safety or protective devices for electrical apparatus
IPC: H05K5/00
Filed: 1928-03-09
Abstract: 287,170. British Thomson-Houston Co., Ltd., (Assignees of Steadwell, E.). March 18, 1927, [Convention date]. Couplings.-The cover of an electrical device, such as a wireless receiving set, is interlocked with a shutter across the power supply socket or the like, so that the interior of the set is accessible only when the power supply is disconnected, and the power supply connection can only be made when the cover is closed. As shown, the receiving-set 1 is provided with a cover or door 2 for inspection and adjustment of the set; and power is supplied to the set by a plug inserted in the opening 3, which may be closed by a sliding shutter 8 guided by a bolt 5 and operated by a handle 6. The door 2 carries a notched sectorshaped plate 9 which co-operates with the end of the bolt 5. When the door is open, the bolt rests against the face of the plate 9 and the shutter 8 can be moved to the left by the handle 6, and the power plug may be inserted through the opening 3. The notch 10 is thus interlocked with the bolt 5 to prevent opening of the door 2.
Patent GB-345470-A (GB)
Title: Improvements in or relating to power plant for ship propulsion
IPC: H02P9/06
Filed: 1930-03-06
Abstract: 345,470. Motor power plant. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JAKEMAN, R. G., of General Electric Co., Witton, Birmingham. March 6, 1930, No. 7407. [Class 110 (iii).] Power plant for ships comprises a prime mover such as a reciprocating engine 1 adapted to exhaust into a second prime mover such as a turbine 2 and an electric motor 3 adapted to receive power from a generator 4 driven by the turbine 2 the motor 3 being on the shaft of the prime mover 1 which drives the propeller 6, and in such plant means is provided to carry a current equal or proportional to that flowing between the generator and the motor and adapted upon variation of this current to effect a voltage regulation of the generator. It is intended that the plant should be controlled by the main step valve to the engine 1 and that the steam supply of the exhaust engine is not controlled. The motor 3 has a field winding 9 provided with a reversing switch 10 and the generator 4 has a field winding 11 and a commutator pole winding 12 connected in series with the main conductor 8. The exciter 5 has a field winding 13 connected in shunt through a regulating rheostat 14 and a field winding 15 connected in shunt across the commutator pole winding 12. Normally when power is flowing from the generator 4 to the motor 3 the winding 15 is adapted to exert a de-compounding effect on the exciter 5. The winding 9 of the motor 3 and the winding 11 of the generator 4 are connected in parallel across the armature of the exciter 5. If electrically driven fans are used for ventilating the generator or motor the driving fans are supplied with current from the exciter so that the speed of the fans varies in accordance with that voltage.
Patent GB-474566-A (GB)
Title: Improvements in or relating to waste-fittings for baths, lavatory basins and sinks
IPC: E03C1/23
Filed: 1937-03-15
Abstract: 474,566. Lavatory &c. waste-valves. SERVICE, G. A. March 15, 1937, No. 7581. [Class 135] A waste fitting for a bath, lavatory basin, sink or the like comprises a plug A on a guided rod B which is lifted against the action of a spring S by a lever C actuated by a chain W or other flexible connection, from a controlarm G with cam slot g. Where an overflow cavity O is not available to receive the chain W, a bell-crank lever is substituted for lever C and the chain is separately enclosed, Figs. 4, 6 (not shown).
Patent GB-1525205-A (GB)
Title: Mobile agricultural machines
IPC: A01D41/14
Filed: 1977-02-23
Abstract: 1525205 Controlling headers MASSEYFERGUSON INC 23 Feb 1977 [26 Feb 1976] 07630/77 Heading A1F [Also in Division G1] The height of operation of a combine header is controlled in dependence on the interruption of a light path from source 60 along fibre optics 62 to cell 63. Shutter assemblies 64 are resilient and can be moved to interrupt the light path by rods 54 actuated by ground feelers 44.
Patent GB-966928-A (GB)
Title: Improvements in or relating to control mechanism for tractors
Inventor: SENKOWSKI ALEXANDER
IPC: F16H48/30
Filed: 1962-02-27
Abstract: 966,928. Controlling tractors. TRACTOR RESEARCH Ltd. Dec. 5, 1962 [Feb. 27, 1962], No. 7672/62. Heading B7H. [Also in Division F2] A tractor differential lock is operable either manually or in response to a lifting movement of the lift arms. The lock is controlled through a lever 14 pivoted to a lever 17 connected to a shaft 15 upon which is rotatably mounted on arm 16. The lever 17 and arm 16 may be connected together by a clip 18. A rod 25 is carried by a sliding bearing 31 attached to arm 16 and is connected thereto by a spring 32. A crank 23 pivoted to the tractor frame at 24 is urged to the right by a spring 30 and is pivotally connected to the rod 25 and to a rod 27 carrying a follower 28 which bears against a cam 26 connected to the shaft 20 to which is secured the lift arm 21. When the lift arm 21 is in an intermediate or lowered position, the follower 28 engages a circular portion of the cam and the arm 16 is held, against the pressure of spring 30, in the position whereby the differential is locked. When the lift arm is raised, e.g. for negotiating a turn, the follower 28 rides along the face 34 of the cam and the arm 16 is moved to the right by spring 30 whereby the differential lock is disengaged. The operation of the device through springs 32 and 30 prevents overstrain and permits separate manual control. The clip 18 may be rotated to a position whereby the differential lock may be operated solely by manual effort.
Patent GB-603567-A (GB)
Title: Improvements in thread-gaging apparatus
IPC: G01B5/20
Filed: 1944-04-25
Abstract: 603,567. Gauging screw threads. BRYANT CHUCKING GRINDER CO. April 25, 1944, No. 7733. Convention date, May 27, 1943. [Class 106 (ii)] A thread gauge comprises a stand, a pair of gauging anvils forming at least two gauging elements, one of which is movable, a support on the stand on which the work-piece is placed and comprising a leaf-spring arranged to move axially to permit the teeth on the gauging elements to enter the spaces of the screwthreads on the work-piece, means for causing gauging movements of the movable gauging element, and means for indicating the position of the latter. The gauge determines diameters, roundness and discrepancies in lead. The fixed anvil 34 is secured by screws 33 to a block 31 secured by screws 30 to the stand 1. The movable anvil 15 is secured by a single screw 37 to a lever 13 with a depending shank 12 pivoted by leaf springs 16, 17 to the shank 9 of a bracket 8 secured to the stand by screws 10. The work-piece is supported by a leafspring 29 bridging a gap in the top face of the stand and secured to a stem 28 free to move laterally in a guide 27. An indicator 60 with a rear locating boss arranged in a recess in the top face of the stand has an operating stem 63 in contact with the lever 13 carrying the anvil 15. The anvils may be separated by a lever 71 secured to the shank 12 and loaded by a spring 78. The lever is provided with a stop screw 75 and a finger-piece 73. A fixed thumbpiece 74 is secured to the stand. Separation of the anvils is also limited by pins 85, 88 on lever 13 and block 31 which enter slots in the stem 28. The work-piece is freed automatically from the fixed anvil. 34 by the pin 85 on lever 13 engaging the stem 28 to move it and the spring support 29 away from the anvil 34. Various constructions of adaptors 40 mounted on the leaf-spring for supporting the work are described. In a modification, Fig. 9, for measuring internal threads, the work support is a V-shaped leaf-spring 100 secured to the fixed anvil 102 which comprises spaced arms arranged on either side of the movable anvil 112. The anvils extend upwardly through an aperture in the spring. A smooth face 120 on the movable anvil 112 engages the work-piece to free the latter from the fixed anvil after gauging.
Patent GB-1422709-A (GB)
Title: Anti-lock brake control system for automobile vehicles
IPC: B60T8/1761
Filed: 1973-02-16
Abstract: 1422709 Anti-skid brake control systems SOC ANON FRANCAISE DU FERODO 16 Feb 1973 [18 Feb 1972] 7781/73 Heading F2F An anti-skid brake control system for an automobile vehicle comprises speed detectors 11A, 11B, 11C, 11D associated with respective wheels 10A, 10B, 10C, 10D and connected to a single computer 13 which acts to control the braking pressure at these wheels in response to speed signals from the detectors as a function of other parameters previously fed into the computer 13, the braking pressure being controlled by modulating means 12A, 12B, 12C, 12D respectively associated with braking means on the wheels 10A, 10B, 10C, 10D which modulating means 12A, 12B, 12C, 12D are actuatable by signals from the computer 13 to reduce braking pressure to prevent wheel lock. As shown, an input switching means 14 is interposed between the speed detectors 11A- 11D and the computer 13, and an output switching means 15 is interposed between the computer 13 and the modulating means 12A-12D: these means 14, 15 put the computer 13 into communication with the speed detectors and the modulating means in order, and a synchronizing means 16 may be provided to ensure simultaneous communication with the speed detector and the modulating means of the same wheel. The switching means 14, 15 and the synchronizing means 16 may be in a single assembly. Figs. 2, 3 (not shown) indicate a speed detector comprising a toothed disc (20) rotatable with the wheel, and an electromagnetic reading head (21) facing the toothed disc (20) and delivering an alternating signal having a frequency representative of the speed of rotation of the disc and the wheel. Fig. 4 illustrates a braking circuit including modulating means. Both chambers 35A, 35B on either side of a diaphragm 33 are normally in communication with a reduced pressure source 36 but upon the wheel locking, the computer 13 energizes a solenoid 38 and a valve 37 moves to disconnect chamber 35B from the reduced pressure source 36. A plate 30 is thereby moved rightwards to close a ball valve 28 between a master cylinder 25 and a wheel cylinder 27; the volume of the system downstream of the ball valve 28 also increases to reduce braking pressure and eliminate wheel lock.
Patent GB-712070-A (GB)
Title: Improvements in or relating to stoppers
IPC: B65D39/16
Filed: 1952-03-26
Abstract: 712,070. Stoppers. B.Z. PRODUCTS, Ltd., and GAZE, W. L. March 25, 1953 [March 26, 1952], No. 7786/52. Class 125 (3) A hollow stopper has a cup-like body 10 of polythene and a cap -like head 12 permanently attached thereto. A thin metal ring 15 is placed between the. shoulder 14 of the cap and the flange 11 of the body and while the parts are held together in the field of an induction coil, induction heating of the ring softens the polythene to effect a weld between the parts. In a modification (Fig. 3) the body 17 is of polythene and the head 16 of another material such as polystyrene or cellulose acetate. Induction heating of a ring 21 softens the edge of the body 17 and causes it to spread into the groove 19 in the head. In another modification (Fig. 4) the metal ring 27 has inwardly and outwardly directed prongs which become embedded in the material of the stopper parts when heated by electrical induction. In a further modification (Fig. 6) the stopper has a. body 30 and a head formed in two parts, a ring 32 and a disc 33 the three parts being united by adhesive.
Patent GB-213903-A (GB)
Title: Packing device for rotatable junction tubes in reciprocating machine parts
IPC: F16L27/08
Filed: 1924-03-27
Abstract: 213,903. Svenska Aktiebolaget Nobel- Diesel. April 6, 1923, [Convention date]. Hinge and swivelling joints.-A fluid junction tube rotatably mounted in a reciprocating machine part is provided with, or formed as, an elastic pipe connected to a fluid conduit and freely suspended for a portion of its length, while a packing is provided between said elastic pipe and the junction tube or that part in which the junction tube is mounted. As applied to an internal combustion engine having a fluid-cooled piston, wherein the cooling medium passes through the crosshead 1 to a conduit 4 in the hollow piston-rod 2, the rotatable junction tube 5 is mounted in a bearing 6 on the crosshead, and is provtided with an elastic pipe 7 supported therein by packing 8, while at the inner end of the tube 7 a flange 9, pressed against a seat 11 in the piston-rod by means of a sleeve 10 screwthreaded at its outer end, is provided. A discharge pipe 13 connected to a central pipe 3 in the piston rod is arranged in a similar manner. The other end of the tube 5 is rotatably mounted in a bearing 14 in an oscillating conduit 15, and has an elastic extension 16 freely suspended for part of its length, a packing 18 being provided between the free end of the extension and a guide 17 formed in the conduit 15. The arrangement is such that the bearings 6, 14 of the junction tube are wholly out of communication with the fluid conduit.
Patent GB-435736-A (GB)
Title: Improvements in and relating to sound film recording or reproducing apparatus
IPC: G03B31/00
Filed: 1935-03-13
Abstract: 435,736. Kinematograph apparatus. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. March 13, 1935, No. 7841. Convention date, April 19, 1934. [Class 97 (i)] [See also Group XXXVIII] All the sprockets and filmrollers in apparatus for narrow films having a sound track and a single row of perforations arranged unsymmetrically with respect to their edges are made unsymmetrical and are reversible on their spindles. The Figure shows a sprocket T having holes 3 in its flanges 1, 2, alternatively engaged by a pin 4 projecting from the flange 5 of the driving spindle. In a modified construction, the bores of the rollers and the driving spindles are so formed as to prevent relative rotational movement therebetween.
Patent GB-641120-A (GB)
Title: A method for the preparation of peptone and amino-acid containing extracts from press water
IPC: A23J3/34
Filed: 1948-03-16
Abstract: Peptone and amino-acid containing extracts are prepared by treating press water from fish and like material, especially from whale or herring oil presses, if desired after pepsin hydrolysis, with lime to bring the pH to 8 to 9, heating to 35-40 DEG  C., and adding enzymes such as pancreatin and erepsin active at this pH. The lipase of the pancreatin decomposes fatty substances present, the fatty acids liberated giving lime soaps which can be removed by a sand filter. An activator for the lipase, e.g. bile, may be added after the hydrolysis has proceeded for some time, e.g. 1 hour.  The filtered product is treated in a vacuum evaporator. Herring press water containing about 3 per cent dissolved, and 2 per cent suspended protein, 0.4 fatty substances, and mineral salts is treated for 5 hours with lime and pancreatin at pH 8.5. A small addition of erepsin increases the yield of amino-acids.
Patent GB-241794-A (GB)
Title: Electrical contact plug
IPC: H01R13/05
Filed: 1925-03-24
Abstract: 241,794. Deltavis Co. March 24, 1925. Addition to 241,785. Plug couplings. -In an expanding plug, according to the parent Specification, the tips d of segments c, which are bent to give the greatest diameter at the centre of their length and meet at the tip, are attached to one another. They may be soldered together, or the slits by which the segments are separated may not extend to the tip. The tip is pressed to form a converging end.
Patent GB-505303-A (GB)
Title: Improvements in or relating to radio and like transmitters
IPC: H03H7/42
Filed: 1938-03-14
Abstract: 505,303. Wireless transmitting-apparatus; inductances ; electric resonators. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. March .14, 1938, No. 7924. Convention date, March 13, 1937. [Classes 40 (iii) and 40 (v)] [Also in Group XXXV] In variably-tunable transmitters in which the tuning adjustment is performed by shortcircuiting a portion of the tank circuit inductance, undesired effects due to distributed capacity of the unused portion of the coil are prevented by suitable screening. The anode inductance of the push-pull amplifier, Fig. 2, is divided into two halves V1, V2, each located in a tubular screen and connected to it at the end remote from the anode. An adjustable connection is provided between the inductance and screen for the purpose of tuning. The load R is connected between the points A and B on the screens and a variable shunt formed by the movable bridge plate P is connected in parallel with it. The plate P is maintained at earth potential by connecting it to the external earthed screen S. In order. to keep the direct-current voltage from the load R the inductance screening may be made as a cylindrical condenser consisting of a ceramic cylinder metallized inside and outside. At higher frequencies the screened inductance may be replaced by short-circuited concentric lines, Fig. 3, each with a movable adjusting base D. The earthed screen S and bridge plate P are arranged as before and the method of feeding an unsymmetrical load is shown. The concentric cable K (through which the load is to be fed) has its outer sheath forked, the two portions being connected parallel to the screens of the concentric lines. The core of the cable passes down one sheath only and at the input end is connected to the other sheath by the connection X. For feeding a concentric cable from two transmitters either in parallel or separately, Fig. 4 (not shown), the "symmetrizing loops" from each transmitter are connected together at their closed ends, from which the feeder cable is continued, and switches are provided for altering the necessary connections. The U-formed parts of Figs. 3 or 4 may be replaced by cables coiled up to form variometers, Fig. 5 (not shown), and sliders are provided between the coiled portion and the straight conductors or screens to permit adjustment.
Patent GB-310026-A (GB)
Title: Improvements in pencils
Inventor: DILLIER ALFRED
IPC: A47H1/04
Filed: 1929-03-11
Abstract: 310,026. Dillier, A. April 21,1928, [Convention date]. Pencil holders, sharpeners, and point-protectors; leads.-In a pencil holder having a sharpening-device for the lead located in the conical nozzle which, together with a guide member, is longitudinally-displaceable relatively to the casing, the casing and guide member are connected together so as to enable them to be tilted into sharpening-position without altering the position of the lead relative, to its carrier. The lead 4, which is of flattened, square, or other non-circular cross-section, is carried in a correspondingly-shaped tube 12 attached to an operating- head 16 rotatable on the end of the barrel 1. The lead, which may be coated with paper or paint, is engaged by a screw-thread on the end of a fixed sleeve 10 so that rotation of the head 16 results in propulsion or retraction of the lead. A sleeve 6, attached to the sleeve 10, is provided with a flange 7 adapted to engage a flange 8 on the end of a tubular member 3 slidable in the casing 1 and carrying the nozzle 2 formed internally with an abrading-surface 9 or coated with emery for sharpening the lead. When the member 3 is withdrawn from the casing, the parts 1, 3 can tilt relatively to one another to enable the lead to be sharpened. Receptacles for spare leads may be provided. In modifications, the nozzle and part 3 are detachable from the lead carrier, and the parts 3, 10 are connected together by a spring. The Specification as open to inspection under Sect. 91 (3) (a) states that the nozzle can, if desired, be used as a point-protector, and that the abrading-surface is arranged to be exchangeable. This subject-matter does not appear in the Specification as accepted.
Patent GB-654474-A (GB)
Title: Treatment of waste pickle liquor
IPC: C25B9/17
Filed: 1948-03-17
Abstract: In the electrolysis of sulphate pickle liquor containing ferrous iron (see Group XXXVI), the iron content of the effluent is two-thirds ferric iron and one-third ferrous iron.  The effluent is vigorously mixed with a large volume of ammonia water, preferably seeded with hydrated granular black iron oxide, and at a temperature of about 75 DEG  C., whereby further iron oxide is precipitated.