baber/WOPTO huggingface dataset:
Patent GB-1208882-A (GB)
Title: IMPROVEMENTS IN OR RELATING TO THE PRODUCTION OF Delta<5(10)> STEROIDS
IPC: C07J75/00
Filed: 1967-09-19
Abstract: 1,208,882. #<SP>5(10)</SP>-Steroids. SYNTEX CORP. 19 Sept., 1967 [26 Sept., 1966; 12 June, 1967], No. 19552/70. Divided out of 1,208,881. Heading C2U. 6-Unsubstituted-#<SP>5(10)</SP>-steroids are prepared by treating 6-(hydroxy or carboxylic acyloxy)- #<SP>5(10)</SP>-steroids with Raney nickel in a C 2-6  monohydric alcohol. 6 - Acetoxy - 3# - hydroxyestr - 5(10) - en - 17- one, 6 - acetoxyestr - 5(10) - ene - 3#,17# - diol and the 17α-methyl, 17α-ethyl and 17α-vinyl derivatives of the latter (all these compounds being 6α/6# isomeric mixtures) are prepared from the corresponding 6-unsubstituted-19- hydroxyandrost-5-enes by reaction with lead tetraacetate. Reference has been directed by the Comptroller to Specifications 1,047,235 and 1,073,637.
Patent GB-356850-A (GB)
Title: Methods and means for producing negatives by other means than photography
IPC: G03C11/22
Filed: 1930-06-28
Abstract: 356,850. Photographic printing. JOYCE, G. J. R., Royal Aircraft Establishment, South Farnborough, Hampshire. June 28, 1930, No. 19737. [Class 98 (ii).] A negative for use in picture transmission by telegraphy, photographic copying, &c., is produced by placing a sheet of carbon duplicating paper, overlaid, if desired, with a sheet of ordinary thin paper, upon a sheet of absorbent material such as blotting paper, and pressing the two together as with a stylus or in a typewriter to transfer carbon to the blotting paper in the form of a design or text and leave the carbon paper in the form of a negative of the design or text. Alternatively, the carbon paper may be placed beneath the blotting paper, and the pressure exerted on the latter. The carbon paper negative may be mounted on glass, celluloid, &c., and may be varnished. It may be enclosed between glass plates for use as a lantern slide. Instead of carbon paper, a celluloid &c. support similarly coated may be used.
Patent GB-1534879-A (GB)
Title: Door handles
IPC: E05B3/06
Filed: 1976-05-07
Abstract: 1534879 Door handles R CARTWRIGHT & CO Ltd 7 May 1976 [10 May 1975] 19749/75 Heading E2A In an assembly a door handle mounting 10, Fig. 2, and a door handle mounting 12 are mounted on a door 14. The latter has a recess 15 therein which receives a spindle 16 for engaging a latch mechanism (not shown). Each mounting has a housing 24 having a face part 26, a side wall part 28, an aperture 56 for receiving a unitary locking snib 18 therein, and an aperture 22 for a lever hub 32 with a circular portion 36, and a portion 38 with diametrically opposed flats. A circlip 40, in a circumferential groove in the hub 32, retains a washer 42 on the portion 38 of the hub, a non-rotatable backplate 44 and a coil torsion spring 46 which is positioned betwen the back plate 44 and the front face 26 of the housing 24. The rotation of the lever 20 is limited between a first position shown in Fig. 1 and a second position at 60 degrees thereto by a lip 50, Fig. 3 of the back plate 44 and a cut-out 52 of the washer 40. The spring 46 is attached to the hub 32 and to the backplate 44 to bias the lever 20 to the first position. The snib 18 comprises a part 58, Fig. 5, and a cylindrical portion 68 which is receivable in an aperture 69, Fig. 6, of a steel support plate 71, a cylindrical portion 61 and a cam 62, and a hand engageable part 60. The cam 62 has a curved surface 64, Fig. 4, for engaging a cut-out 65, Fig. 3, in the washer 42, and a curved surface 66, Fig. 4. A release recess 72 is formed in the snib 18, Fig. 5, to receive a tool (not shown) which may be passed through a passage 82 in the door 14 to effect rotation of the snib from the other side of the door. In use the lever 20 is rotatable when the snib 18, Fig. 1 is positioned as shown in full lines, the surface 66 of the cam 62 allowing rotation of the washer 42, and the lever 20 is locked when the snib is positioned as shown in interrupted lines, the surface 64 of the cam 62 will be located within the cut-out 65 of the washer 42 to prevent rotation of the latter.
Patent GB-583283-A (GB)
Title: Improvements in and relating to rotatable valves for internal combustion engines
IPC: F01L7/08
Filed: 1944-10-13
Abstract: 583,283. Rotary valves. BRIGGS MANUFACTURING CO., and FRANK, C. E. Oct. 13, 1944, No. 19818. [Class 7 (vi)] As applied to a two-stroke engine a frustoconical rotary valve 26 having two combustion chambers 31, 32 separated by a partition wall 39 and communicating with the cylinder space through circular ports 33, 34 is provided with ports 35, 36 which register in turn with inlet and exhaust passages 37, 38 and two diametrically opposed sparking plugs. The valve has an annular extension 26a which enters a recess 28 in a plate 25 interposed between the cylinder and cylinder head and is provided with a cooling chamber 40 filled with metallic sodium. To permit slight axial movement of the valve a spring washer 47 is provided bearing against a coupling member 44 which is splined both to the valve and a gear 46 which meshes with a gear 49 to rotate the valve at half the speed of the crankshaft.
Patent GB-225262-A (GB)
Title: Improvements in, or relating to, insecticides and the like, their manufacture and use
Filed: 1923-08-02
Abstract: Chlorpicrin and chlor-dinitro-benzene are rendered suitable for use as insecticides to be added to soil by preparing easily-decomposable double compounds thereof with ammonia, pyridine, aniline, or o-toluidine.  The chlornicrin, or 1 : 2 : 4-chlor-dinitro-benzene, is added to the ammonia or other base in the presence of an absorbent such as silica gel or charcoal and at ordinary temperature, the formation of condensation products being avoided.  Ammonia may be added in addition to one of the other basic substances. Specification 20387/07, [Class 81, Medicine &c.], is referred to.
Patent GB-708416-A (GB)
Title: Improvements in and relating to valves suitable for use with high temperature fluids
IPC: C21B9/12
Filed: 1952-08-06
Abstract: 708,416. Valves. PORAY, A. Aug. 6, 1952, No. 19833/52. Class 135 The body of a valve for use with high temperature fluids comprises a fluid-tight casing 1 of relatively thin sheet metal, such as stainless or refractory steel or alloy, to the outside of which is secured a number of vertical ribs or fins 2, transverse hoop-like section members 3 working entirely in tension being secured to the top or free edges of the fins 2. The casing is completed by inlet and outlet pipes 4, 5 of stainless or refractory steel or alloy and end plates or flanges 6, 7 of ordinary steel connected by tie rods 9. The parts are all secured by welding and form a rigid structure with a large radiation surface. The closure member, Fig. 4, is hollow and comprises two discs 10, 11 of thin sheet metal secured to one another in fluid-tight relation at their edges and connected by extension internal partitioning or sub-division into compartments 12. The partitioning may be of square cellular type as shown, or of radial or spiral type. Cooling may be effected by round or square section water pipes coiled about the pipes 4, 5, or by a water circulation jacket consisting of the body itself with external plating welded to it.
Patent GB-666098-A (GB)
Title: Improvements in shielded electric sockets
IPC: H01R13/453
Filed: 1949-07-28
Abstract: 666,098. Two-part couplings. CRABTREE & CO., Ltd., J. A., and MORGAN, R. W. July 27, 1950 [July 28, 1949], No. 19834/49. Class 38 (i). A shielded socket for a three-pin plug has a pair of shutter-plates a disposed in the form of a V, the insertion of the earth-pin first moving the plates in the direction of their length to disengage them from an abutment e<SP>1</SP> and permit the current-carrying pins to move them towards each other and uncover the currentcarrying sockets. The plates are located in a triangular recess e<SP>3</SP> in an insulating-plate e having pin-entry holes b, c and are urged to their shielding position, as shown in Fig. 2, by a spring d whose ends bear on projections a<SP>4</SP> on the plates. In this position raised surfaces a<SP>2</SP> on the plates engage the abutment el. The initial movement of the plates is produced by the earth pin engaging bevels a<SP>1</SP> on their ends at the apex of the V, the current-carrying pins engaging bevels a<SP>21</SP> to produce the secondary movement. Specification 612,486 is referred to.
Patent GB-147870-A (GB)
Title: Locomotive boiler with steam superheater and feed-water heater
IPC: F22G7/06
Filed: 1920-07-09
Abstract: 147,870. Schmidt'sche Heissdampf-Ges. Nov. 25, 1916, [Convention date]. Fire and smoke tube superheaters. -In a locomotive boiler with superheater and feedwater-heater in the smoke-box, to enable superheating of the steam and heating of the feedwater to be carried to the highest point practicable the boiler tubes are shortened to such an extent that the furnace gases issuing from them pass to the feedwater heating tubes at a temperature not substantially lower than the maximum temperature attained by the steam in the superheater tubes. The superheater is of the fire tube type, having tubes g inserted in the boiler tubes. The feedwater heater has tubes a lying crosswise of the boiler, having their ends closed by bends connecting the tubes in series. The ends are supported in box-like compartments h closed by a plate on the outside shell. The feedwater enters at inlet k, and flows in the opposite direction to the combustion gases, to the outlet l. The feedwater heater is placed sufficiently high for accessibility of the superheater and also the whole of the boiler tubes.
Patent GB-1454508-A (GB)
Title: Refrigeration control systems
IPC: F25B41/04
Filed: 1973-04-26
Abstract: 1454508 Refrigerating SHIPOWNERS REFRIGERATED CARGO RESEARCH ASSOCIATION 25 April 1974 [26 April 1973] 19935/73 Heading F4H A refrigeration system for controlling the temperature of a chamber 12, includes a compressor 1, a condenser 2, a receiver 3, an expansion device 5, an evaporator 4 and a hot-gas bypass line 17 interconnecting the compressor 1 with the evaporator 4. The system also includes apportioning means arranged to control the relative proportions of the gas flows through into the condenser and through the bypass line to provide either net heating or net cooling of the chamber 12. In Fig. 1, the apportioning means comprises a solenoid valve 9 in the bypass line 17 and a solenoid valve 8 with a permanently open bypass 13 located in between the receiver 3 and the valve 5. The system is arranged and dimensioned such that during a temperature controlling phase of the refrigeration system (as opposed to the initial fast cooling phase when the line 17 is closed by the valve 9), when both valves 8, 9 are open, there is net cooling of the chamber and that when valve 8 is closed there is net heating of the chamber. A solenoid valve 26 with a permanently open bypass 27 may be provided to control further the flow to the condenser. The valves 8, 9 and 26, if present, are controlled by a thermostat 10 and a sensor 11 disposed in the inlet to the chamber 12. A T-piece connection 6 interconnecting the compressor with the condenser and line 17 may be replaced by a throtting valve 14 controlled by an ambient temperature sensor 16. Either valve 8, 9 may be replaced by a split conduit (as shown in Fig. 2). Each individual pipe 18 has a valve 19 operated by a controller 20 responsive to temperature change in the chamber 12.
Patent GB-639383-A (GB)
Title: Improvements relating to aircraft undercarriages
IPC: B64C25/44
Filed: 1948-07-26
Abstract: 639,383. Aircraft undercarriages. DOWTY EQUIPMENT, Ltd., and NICHOLL, E. J. July 26, 1948, No. 19940. [Class 4] An aircraft bogie undercarriage has the land wheels connected with a supporting leg by levers extending fore-and-aft from pivotal attachments of the latter with the leg and swingable up and down against restraint provided by one or more shock absorbers, in which brake torque of non-rotating elements of brakes associated with the wheels is transmitted by links directly connecting the elements with the leg, and so positioned that the resultant of the forces acting on the corresponding wheel as a result of braking action will lie in a plane containing the axes of the lever pivot and wheel spindle. The undercarriage comprises four double wheels 11, the two near side wheels of which are removed in the Figure for clarity of illustration. The wheels are rotatable about parallel axes 12 and 13 arranged equal distances fore-and-aft of the supporting leg 14 to which the wheel spindles are connected by a pair of levers 15, 16 respectively, the levers being free to pivot about a common axis 17 at the lower end of the leg 14. Vertical swinging movement of the levers 15 and 16 is resisted by two shock absorbers 18, 19 pivotally connected at 20 to a link 21 freely pivoted to the lever pivot 17. Each double wheel 11 is fitted with a brake of the drum or plate type having a non- rotating brake arm 25 pivotally attached at 26 to one end of a torque link 27, the other end of which is so pivoted at 28 or 29 to the leg 14 that the links 27 are substantially parallel with the respective levers 15, 16.
Patent GB-404667-A (GB)
Title: A new or improved device for automatically compensating the movements of an operating and operated member for wear
IPC: B60T7/10
Filed: 1932-07-15
Abstract: 404,667. Linkwork. HONNOR, H., c/o City of Santos Improvements Co., Santos, Brazil. July 15, 1932, No. 20086. [Class 80 (iii).] In a device in which a driving-pawl on an operating-lever engages with a ratchet-plate, means for taking up slack, particularly in brakes, comprises an adjusting-pawl on the lever adapted to engage with end stops when the normal limit of movement of the lever is exceeded. As shown, a brake lever 1 with release gear, and a sector 3 with rack teeth and an extension 4 are mounted on the same pin 2. The lever 1 engages teeth on the sector 3 through a spring plunger 5, and a biassed pawl 6 also engages the teeth and is mounted in lateral recesses of the lever 1, the ends of the pawl being adapted to strike stops 7, 8 when excessive movement occurs due to slack in the transmission system. The lever 1 and the sector 3 with extension 4 move as a unit, but when slack occurs the end of pawl 6 strikes the stop 8 and is moved laterally to engage a fresh tooth on the sector 3. On the return stroke the other end of the pawl 6 strikes the stop 7 and allows the pawl 5 to slip a tooth and take up the slack.
Patent GB-676493-A (GB)
Title: A device for representing at each moment the anode temperature of an x-ray tube
IPC: H05G1/26
Filed: 1950-08-14
Abstract: 676,493. Electric correspondence control. MASSIOT & CIE, G. Aug. 14, 1950. [Sept. 9, 1949] No. 20088/50. Class 40 (i). The temperature of the anode of an X-ray tube is determined by measuring the voltage of a condenser 10 charged at a rate comparable with the heating rate of the anode and determined by resistances 6, 7, 8 which are selected by switches 4, 5 operated by a relay 3, and by a switch 9, a shunt resistance 14 simulating the heat dissipation of the anode. The voltage on the condenser 10 is fed to the grid of a triode 15, whose anode circuit contains a relay winding 18 which switches off the X-ray tube supply when the voltage across condenser 10 is too high. A magic eye device 23-27 may be connected in the anode circuit to indicate one or two values of grid voltage or a milliammeter calibrated in degrees of temperature may be used.
Patent GB-1603993-A (GB)
Title: Lattice filter for waveform or speech synthesis circuits using digital logic
IPC: G10L19/06
Filed: 1978-05-17
Abstract: The digital filter comprises a memory (31) storing filter coefficients, a multiplier (30) multiplying internal data of the filter by the said filter coefficients, an adder/subtracter (33) adding the results of the multiplications to other data obtained in the filter, a delay circuit (34) connected up to the output of the adder/subtracter, a shift register (35) storing and retrieving at the requisite the time the data coming from the delay circuit, and an interlock output memory (36) storing a datum output by the filter. These various elements are interconnected with the aid of switches (37, 38) in order to perform the successive operations of multiplication and addition during a cycle. This filter, equivalent to a lattice filter, can be used in a voice synthesizer. <IMAGE>
Patent GB-1040933-A (GB)
Title: Improvements in or relating to automatic control systems, especially for machine tools
Inventor: HATHAWAY KENNETH WILLIAM
IPC: G05B19/35
Filed: 1962-05-25
Abstract: 1,040,933. Programmed control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 24, 1963 [May 25, 1962], No. 20139/62. Heading G3N. [Also in Divisions G1 and H1] The machine tool control system of Specification 946,025 which provided a datum shift in discrete steps is modified to produce a continuous datum shift signal which can be used for manual control of the machine. The modification comprises components 27... 36. The datum shift switch SW is now provided with make before break contacts, and its fixed contacts are connected through injection transformers 27, 28 to the wiper AO1, A23, A45, A67, A89. The injection transformers 27, 28 are energized from an auto transformer 30, coupled through a 5 : 1 gearbox 36 to switch SW, to provide a smooth voltage change on rotation of switch SW. The action is similar to that of auto transformer 10, and injection transformers 6, 7 between contact studs B and transformer T 1  as described in Specification 946,025.
Patent GB-614195-A (GB)
Title: Improvements in or relating to dolls' furniture
IPC: A63H3/52
Filed: 1946-07-05
Abstract: 614,195. Moulding dolls' furniture from resin. NIEBOER, H. A. July 5, 1946. No. 20180. [Class 87 (ii)] [Also in Group XV] Articles of dolls furniture are made by extruding polythene in a continuous length of desi ed cross-sectional configuration and then cutting the length into lesser lengths to produce the articles. Tables, beds and chairs are formed by cutting an extruded length of polythene of channel, I or distorted H section as shown in Figs. 1, 3 and 4. The body 5, Fig. 5, of a cabinet is formed from an extruded rectangular tube to which a back and doors of polythene or other material are subsequently affixed. The manufacture of other articles of furniture is also described.
Patent GB-614202-A (GB)
Title: Improvements in mechanism for controlling the supply of fuel to internal combustion turbines
IPC: F02C7/22
Filed: 1946-07-06
Abstract: 614,202. Fluid-pressure servomotor systems. S.U. CARBURETTER CO., Ltd., KENT, R. L., and DAVIES, K. R. July 6, 1946, No. 20223. [Class 135] [Also in Group XXVI] A gas turbine liquid fuel control system comprises a metering orifice regulated by means responsive to variations of turbine speed and controlled by cam mechanism providing desired relationship between fuel flow and turbine speed during acceleration and deceleration and a manually - controlled cam for selecting the turbine speed. Fuel from a turbine-driven, speedcontrol pump enters through a pipe 5 and flows past a disc flow-meter 7 connected to a tube 8 having a slot 28, the edges of which rotate a plate 13 to control a metering orifice 10 in the wall 4 leading to a conduit 11 and discharge conduit 12 leading to an injection pump feeding the burners. Variations in fuel flow rotate the spring-loaded disc 7 and move it axially so that the plate 13 carried by a rod 16 attached to a barometric capsule 20 is rotated by the member 8 to vary the orifice 10. The movement of the member 8 is controlled by cam-followers 34, 35 co-operating with a manually-operated cam 32 and a stationary cam 31. For accelerating from the idling position shown in Fig. 3, the cam 32 is rotated by lever 33 to set the desired speed and the cam-follower 34 moves along the face 45 of cam 31 under the action of the increasing fuel flow on disc 7 until a balanced position is reached, Fig. 4, 'when the follower 35 engages the cam 32. Similarly, the fuel supply during deceleration is controlled by the movement under the action of the cam 32 of the follower 34 along the face of cam 31. A diaphragm 50 controlled by the fuel pressure on opposite sides of the orifice 10 actuates a servomotor valve 53 which controls the injection pump output to maintain a constant pressure drop across the orifice 10, which pressure drop may also be controlled by temperature-responsive means. The plate 13 is pressed against the wall 4 by a spring 15 and is held against the lower edge of slot 28 by a torsional spring 29 acting on the rod 16. For a turbine with assemblies of rotors turning at different speeds, two or more speed-control pumps driven by the respective rotors may be arranged to feed the flow-meter 7 and provide a fuel now in accordance with any desired combination of these speeds.
Patent GB-614265-A (GB)
Title: New compositions containing water-insoluble organic polymers and water-soluble organic polymers
IPC: C08L29/04
Filed: 1946-07-08
Abstract: An aqueous dispersion of a water-insoluble monoethylenic carbalkoxy polymer is blended with an aqueous solution of a water-soluble hydrolysed interpolymer of ethylene and one or more vinyl carboxylates.  Insoluble polymers specified are methyl methacrylate and its interpolymers with vinyl chloride, vinyl fluoride, acrylonitrile and ethylene; ethyl acrylate and its interpolymers with vinyl chloride and vinylidene chloride; phenyl a -chloroacrylate; interpolymers of vinyl chloride with methyl acrylate, dimethyl or diethyl fumarate or dimethyl maleate; interpolymers of vinyl fluoride and dimethyl fumarate.  The vinyl carboxylate may be vinyl formate, acetate, propionate or benzoate. Pigments and fillers, e.g. titanium oxide, zinc oxide, iron oxide, antimony oxide, barium and calcium carbonates, barium sulphate, lakes, mica, powdered silicon and metals, plasticizers, dyes and synthetic resins, e.g. urea-formaldehyde, urea-melamine-formaldehyde or phenol-formaldehyde, may be added. The compositions may be applied to glass, metal, wood, paper, leather, linen, silk, cotton, regenerated cellulose film, concrete, masonry, brick or stone, and air-dried or baked.