baber/WOPTO huggingface dataset:
Patent GB-2466007-A (GB)
Title: Weight saving hot tub cover
Inventor: COOPER JEREMY BERNARD
IPC: E04H4/08
Filed: 2008-12-05
Abstract: The invention relates to a cover or lid for a hot tub or spa and comprises a slab of insulation 9 enclosed with a water vapour barrier layer 10 with a gap 13 in the vapour barrier layer. The gap is at a position where the temperature is normally less than that within the insulation. The gap allows water vapour to escape and prevents weight gain due to the build up of condensation and subsequent waterlogging of the insulation material. By allowing water vapour to escape, the life of the cover or lid is substantially extended. The barrier layer may be bonded to the insulating slab and thereby forms a seal to prevent water from entering between them. The insulation is preferably expanded polystyrene and the barrier layer a high-density polyethylene, A channel 12 may also be formed in the underside of the slab to increase ventilation between the corner of the cover or lid and the vapour space (11 figure 2).
Patent GB-2461997-A (GB)
Title: Combustible Gas Pressure Regulator with Spring-loaded Diaphragm and Threaded Stops
Inventor: ROSSO GIORDANO
IPC: F23N1/00
Filed: 2009-07-20
Abstract: A device for regulating the discharge pressure of a combustible gas has at least one valve seat 5 and a respective valve shutter 4 controlled by a diaphragm 6 associated with the seat/shutter, and which can be moved during the opening/closing movement of the seat along a predetermined axis (X). The device has a resilient actuating means which include a first adjustable spring system 9 which acts on the diaphragm in order to subject it to a preselected resilient load. The load applied by the first spring system on the diaphragm is adjusted by movement of a first stop means 10 and a second stop means 11 that can be moved axially in an adjustable manner along the X-axis via a first screw/nut connection 13, 14 and a second screw/nut connection 19, 21. Axial travel of the first stop means is arrested by an abutment 15, and axial travel of the second stop means is arrested by means 25 to block its rotation. The provision of the first and second stop means allows close control of an `offset' value of an air/gas control valve, the offset being the combustible gas output at zero air pressure.
Patent GB-2463393-A (GB)
Title: Estimating gas-oil ration from other physical properties
Inventor: DIFOGGIO ROCCO
IPC: E21B49/08
Filed: 2008-05-23
Abstract: A method for characterizing a desired property of a fluid downhole comprises receiving an input signal representing sound speed of a fluid downhole, processing the input signal using a correlation equation expressing the desired property in terms of at least sound speed to produce an output signal representing the desired property, and outputting the output signal The correlation equation may be derived through a chemometnc analysis of a training data set comprising a plurality of input values and a plurality of output values derived from said input values In at least one example, the desired property is gas oil ratio.
Patent GB-387870-A (GB)
Title: New or improved device or staple for securing padlocks
IPC: E05B67/38
Filed: 1932-04-07
Abstract: 387,870. Padlock staples. PETITPIERRE, G. J. H., 32, Mattock Lane, Ealing, London. April 7, 1932, No. 10026. [Class 44.] Staples for padlocks are formed of pieces of sheet metal, the three parts of which are bent at rightangles one to the other. The vertical parts a<3>, a<5> of one staple embrace the corner of the door-post and the part a<3> is secured by turned-up portions a<4> or by screws. One vertical part b<3> of the other staple is secured to the door edge and the part b<5> stands out from the door edge so that the slots in the horizontal parts a<2>, b<2> lie one above the other when the door is shut.
Patent GB-739676-A (GB)
Title: Improvements in or relating to safety means for occupants of motor vehicles
IPC: B60R21/02
Filed: 1954-04-06
Abstract: 739,676. Vehicle bodies. JAHN, F. April 6, 1954 [April 7, 1953], No. 10057/54. Class 108 (1). A safety apparatus for preventing the occupant of a motor vehicle from being thrown forwardly upon collision and so on is mounted on the dash or to the rear of a seat &c. and comprises a cushioned bar 2 normally held retracted against a compression spring 5 by a rotatable catch 6. In this position a mass 10 is urged by a spring 12 against a stop 11 connected to the catch so that if the vehicle is violently halted the kinetic energy of the mass, assisted by a spring 14, is used to release the catch 6 and allow the shock absorber 3 to thrust forwardly against the occupant. The thrust movement may however be effected by hydraulic or pneumatic means.
Patent GB-354307-A (GB)
Title: Improvements in the production of fertilisers
IPC: C05C9/00
Filed: 1930-03-31
Abstract: A process for the production of a fertilizer in granular form consists in mixing water-insoluble ballast material with a hot concentrated solution or melt of urea, the mixture containing 2-5 per cent water, subdividing the magma into droplets and solidifying them by contact with coal gas, e.g. by spraying the mixture down a tower. The urea melt may be obtained by heating ammonia and carbon dioxide or ammonium carbamate under pressure. The ballast material which is preferably freed from ultra fine particles may consist of rock phosphate, by-product chalk, limestone, anhydrite, or gypsum.  Other water-soluble fertilizing constituents, e.g. potassium salts or ammonium phosphate, may be added to the magma.  The magma may be sprayed at a temperature of 95-115 DEG  C. and the droplets may be produced by rotating discs, cones or cups, the material being scattered from the periphery, or by spraying devices of the nozzle type with or without an impinging air blast &c.  Specifications 182,134, 309,299, 315,485, 326,529, and 339,500 (as open to inspection under Sect. 91 of the Acts), [all in Class 111, Sewage &c.], and 345,658, are referred to.
Patent GB-1505743-A (GB)
Title: Universal logic gate
IPC: H03K19/173
Filed: 1975-03-11
Abstract: 1505743 Logic circuits HUGHES AIRCRAFT CO 11 March 1975 [11 March 1974] 10164/75 Heading G4H [Also in Division H3] A logic circuit comprises one or more logic cells each having four output terminals 25, 26, 27, 28, one or more load cells, e.g. 20a, each having an input terminal, e.g. 56, the logic and load cell terminals being selectively interconnectable to perform predetermined logic functions and each logic cell comprising: a first current path 12a from terminal 25 which includes a switch 21; a second current path 12b from terminal 26 to the current path 12a; a second switch 37 connected to the first and second current paths; a third current path 13c from terminal 28 which includes a third switch 24; and a fourth current path 13d from terminal 27 to current path 13c, the three switches having a plurality of control inputs. The inputs to the three switches are arranged to perform an OR operation of each switch and the interconnection of the switches is such that current only flows in one of the four paths. The Figures referred to below (not shown) relate to interconnections for performing certain specific logic functions, namely: Fig. 3 wired AND Fig. 4 wired OR Fig. 5 bussed OR Fig. 6 double OR Fig. 7 exclusive OR Figs. 8, 9 combinations of exclusive and inclusive OR Fig. 12a exclusive OR Fig. 12b parity Fig. 13 eight input AND Fig. 14 ten input, combinations of exclusive and inclusive OR.
Patent GB-707344-A (GB)
Title: Semi-automatic molding machine
IPC: B22D15/02
Filed: 1952-04-23
Abstract: 707,344. Cores ; moulds; extracting castings. BOHN ALUMINUM & BRASS CORPORATION. April 23, 1952 [Sept. 7, 1951], No. 10192/52. Class 83 (1) A machine for casting hollow pistons &c. comprises a first manual switch 64 to energize a power means to move a centre core assembly 27 into position, a second manual switch 81 for energizing a further power means 14 to move a pair of mould halves 13 into position, individual manual means 34 for moving each of two side cores 28. and means for controlling the withdrawal of the centre core assembly from the mould and the opening of the mould halves. Two moulds, each consisting of mould halves 13 with spring-pressed centre cores 22 are alternately brought into operative position by hydraulic means 49 and gearing 46, 47. In operation, the operator lifts a casting clear of the machine, and opens the side cores by the levers 34 to operate safety switches which allow the centre-core assembly to be raised hydraulically by pressing button 64. Pressure on a button 81 then causes the mould halves to be closed by the hydraulic means 14. The metal is ladled by hand into an opening 100. The operator finally presses a button 101, causing the hydraulic means 49 to rotate the table and to operate timing means which cause the centre core assembly to be withdrawn and the halves to be opened when the metal has solidified. In a modification, after the centre core 138, Fig. 7, has been removed after casting, the right hand side core 132 on a carriage 134 is moved by a lever 34 so that it drops down out of the mould. The other core half is then moved sideways by the left lever 34 and the casting removed. When the centre core is returned, it carries with it the side core 132 which is held in position by a latch 149. The centre core may carry spring-pressed end cores 154, Fig. 8, which, as the core is moved upwardly into the mould, are restrained by shoulders 163. U.S.A. Specification 1,952,200 is referred to.
Patent GB-227031-A (GB)
Title: Improvements in and relating to bolt fastenings
IPC: E05C1/04
Filed: 1924-04-24
Abstract: 227,031. Townsend, G. A. April 24, 1924. Sliding bolts.-A bolt c slides in holes cut in rectangular corrugations b stamped up from a plate a. The end f or an additional corrugation fcrms a stop for the bolt. The socket may comprise a corrugated strip g, with extensions g<1> for screw holes. Specification 15939/90 is referred to.
Patent GB-900812-A (GB)
Title: Improvements in or relating to electromagnetic contactors
IPC: H01H50/54
Filed: 1960-03-23
Abstract: 900,812. Electromagnetic switches. MORSCHEL, F. March 23, 1960 [June 29, 1959], No: 10337/60. Class 38 (5). In an electromagnetic contactor having its electromagnet retained within a casing by a detachable insulating cover, an insulating contact-actuating member attached to the armature extends through holes in the cover into contact chambers. The fixed core 32 and armature 33 are identical E-shaped structures with undercut portions 39 which, in the case of the armature, engage complementary portions of the moulded contact-actuating member 23. The moulded cover 10 is secured by screws 11 at diagonally-opposite corners to the casing 1 and engages the former 34 of the coil 31 so that the core 32 is urged against a resilient foam rubber block 41 retained by walls 42 on the casing. Springs 40 between the former 34 and member 23 bias the core and armature apart and hollow posts 25 on the member 23 extend through holes in the cover 10 into chambers 16 formed by mutually perpendicular walls 14, 15 of the cover 10. Fixed contacts 17 are pushfitted in slots in the walls 14 and provided with terminal screws 19 which enter unthreaded holes 20 in the cover 10. Moving bridge contacts 22 are retained over locating projections on the ends of the posts 25 by compression springs 27 on keys 26 which are locked in the posts 25 by being inserted in a slot and turned through 90 degrees. Extensions 21 of the walls 15 outside the chambers 16 act as interphase barriers. A part 35 of the former 34 extends into an opening in the casing 1 and carries coil terminals 36. Additional contact devices 50 can be fitted on the top of the contact chambers 16 with resilient fingers 52 projecting from a moulded body 51 into the corners of the chambers 16 and an additional retaining finger 54 locked on to a projection 56 in the wall 15. The insulated head of the respective key 25 engages a contact spring 60 to normally hold contacts 59, 56 closed. These contacts may also be actuated by a manually-operable plunger 63. In an alternative arrangement, Fig. 5 (not shown), the springs 40 are replaced by resilient foam blocks, the auxiliary contact device has normally open contacts and the cover is secured to the casing by spring clips.
Patent GB-573021-A (GB)
Title: Improvements in and relating to methods of and apparatus for treating articles underpressure with high frequency electric heating
IPC: H05B6/62
Filed: 1942-07-24
Abstract: 573,021. Electric induction heating. JABLONSKY, B. July 24, 1942, No. 10343. [Class 39 (iii)] [Also in Group V] Articles are heated under pressure in a high frequency electric field between tools of electrically non-conducting material, the electrodes being thin metal layers between the articles and the pressing tools. The press tools may be of wood veneers, textile fabrics. paper, or pulp, with a binder of phenol formaldehyde resin, "Jabroc," or "Tufnol" (Registered Trade Marks), or of a glass and mica composition, or a mineral cement or concrete, which may be reinforced. Metal sheets 3, 4 are arranged between dies 1, 2 and an article such as an airscrew blade. Connecting lugs 7-12 may be provided at separated points. The sheets 3, 4 may be recovered and used again, or they may adhere to the article to form a protective cover. The metal sheets may be secured to the dies, or they may be deposited on them by spraying or electrolysis. The press tools may be flat, or may be profile die or rollers. which may be corrugated. In Fig. 2, concrete rollers 13, 14 may be sprayed with metal 15, 16, which is connected to the current supply by brushes 18, 19.
Patent GB-712713-A (GB)
Title: Improvements in or relating to target structures for cathode ray tubes
Inventor: BANKS GEORGE BALDWIN
IPC: H01J19/00
Filed: 1952-04-24
Abstract: 712,713. Television pick-up tubes. ENGLISH ELECTRIC VALVE CO., Ltd. Jan. 23, 1953 '[April 24, 1952], No. 10377/52. Class 39(1) [Also in Group XXXVI] A television camera tube target structure comprises a very thin glass diaphragm member constituting the target proper and a fine metallic mesh arranged parallel to the diaphragm member at' a very small distance from it, the required small spacing being obtained by means of additional metal deposited over a selected portion of the face of the mesh next to the diaphragm member so that the selected portion is thickened to a predetermined extent so as to act as a spacer which is integral with the mesh. A mesh 1, Fig. 1, may be placed on an insulating support 2 in an electrolytic bath and covered in the centre by an insulating block 3, the support 2 and block 3 being preferably of glass which is optically polished, so that metal from the anode 5 is deposited electrolytically on the edge of the mesh; the finished mesh has a cross-section as shown in Fig. 2 having a thickened surround 1b which may have a thickness of about .0005 inches. The target structure may be used in an image orthicon.
Patent GB-969372-A (GB)
Title: A distributor for delivering measured quantities of non-gaseous fluid
IPC: F16N27/00
Filed: 1962-03-19
Abstract: 969,372. Lubricators. CONSORTIUM DE RECHERCHES POUR L'APPLICATION DES FLUIDES, C.R.A.F. March 19, 1962 [March 20, 1961], No. 10432/62. Heading F2A. In a distributer for delivering measured quantities of liquid such as lubricant, a specified quantity is delivered at each pressure impulse effected by a pump. In an embodiment, a cylindrical casing 1 has a chamber 4, an inlet bore 3 at one end and a screwthreaded outlet at the other end which receives a screwed-plug 5 having orifices 6, 6<SP>1</SP> therein. The chamber 4 houses three movable units, one of which comprises a valve 18 having a flange 19 thereon which slidably engages the walls of the chamber 4 and has a flexible closure ring 23 mounted thereon which is retained by a ring 24, the valve 18 also has a portion of reduced diameter with a resilient seal held thereon by a ring 22; another unit of which comprises a cylinder 8 having a flange 9 at one end and a washer 12 at the other end, the cylinder having orifices 11, 11<SP>1</SP> therein; and the other unit of which comprises a hollow piston 15, sealed by rings 16, 17 and urged towards the inlet end of the distributer by a spring 13 which abuts the washer 12. A clearance 14 is provided between the plug 5 and the washer 12 so that, when pressurized liquid enters at f, the three units are raised until the washer 12 abuts the plug 5. The washer 22, being in a raised position, permits entry of the liquid which forces through the one-way seal 21 and through channels 20 in the valve 18 in order to urge the piston 15 upwards and so compress the spring 13. The quantity of liquid entering the distributer is limited by the stroke of the piston and, so long as the spring 13 is compressed, no additional liquid can enter. When the pressure acting on the liquid is reduced, the valve 18 closes and the spring 13 forces the piston 15 downwards and compresses the liquid trapped in the chamber 4. The tube 8 remains in its uppermost position for a sufficient period of time to allow the liquid to escape between the flange 9 and the closure ring 23 and thus enter the cylinder 8, from where it passes through orifices 6, 6<SP>1</SP> to a bore 7 in the plug 5. In a modification, the tube 8 is fixed to the plug 5 and the orifices 11, 11<SP>1</SP> and 6, 6<SP>1</SP> are omitted. The tube 8 is designed so that the length thereof permits displacement of the valve.
Patent GB-270480-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M9/127
Filed: 1926-04-23
Abstract: 270,480. King, L. F. April 23, 1926. Spray carburettors.-The carburettor, for use preferably without a float, comprises a casting G with an annular enlargement G<1> of semicircular section at its upper end communicating with the engine intake and provided with a throttle valve. Inside the casting is a liner E with a reduced upper portion E<1> in which slides one of the trunk ends of a piston D, the other end 0 being closed and adapted to move in a slightly tapered opening of the casting G. The air which enters through this opening passes through holes K and meets the fuel discharged around the valve spindle F<1> at the bottom of a cone or ball shaped member I. The valve is lifted by an adjustable screw plug L carried by the piston D. The mixture of air and fuel passes through an outlet formed between the upper flat surface of the liner E and a choke plate C adjustable by screws B. The fuel flow is regulated by an additional valve F. The space H serves as a dash-pot to steady the movements of the piston D.
Patent GB-1066393-A (GB)
Title: Improved method of producing progesterone derivatives and compounds produced thereby
IPC: C08G65/36
Filed: 1965-04-05
Abstract: The invention comprises the 3-(ethylene, 1,2-propylene or 1,3-propylene)-thioketals of 16a -methyl-and 6a ,16a -dimethyl-progesterone, and their preparation by thioketalization in the presence of a catalyst.  The compounds of the invention have oral anti-ovulatory activity.
Patent GB-676694-A (GB)
Title: An improved preparation for the production of electrical insulating layers on metal
IPC: H01B3/10
Filed: 1949-04-22
Abstract: A composition for producing an electrically insulating layer on metal consists of a powdered insoluble electrically non-conducting non-plastic mineral having a particle size not exceeding 10 microns and a binder of sodium silicate, mixed with water to form a paste or slip.  Specified minerals are slate dust, zirconium silicate, serpentine, talc, aluminium silicates other than clays, chamotte, ground brick, chalk, marble, precipitated calcium carbonate, dolomite, magnesite, barytes, and calcium sulphate.  The amount of sodium silicate may be 5 to 20 per cent of the mineral and it may be added as a dry powder or as an aqueous solution.  Specification 655,637 is referred to.
Patent GB-550152-A (GB)
Title: Improvements in or relating to snap-action electric switches
IPC: H01H23/16
Filed: 1941-08-26
Abstract: 550,152. Tumbler switches. WALSALL CONDUITS, Ltd., and GOUGH, E. Aug. 26, 1941, No. 10873. [Class 38 (v)] A tumbler switch, particularly adapted for A.C. has a rectilinearly-moving contact-carrying member 19 which is acted upon by snap-action mechanism 36 and is also positively driven from the dolly 13 through the intermediary of cam 38 which engages abutments 23 on the member 19. The cam 38 forms the upper end of a link 30 which is surrounded by the compression spring 36 and passes through a fixed lug 35 and any looseness between the cam and the abutments 23 is taken up by a blade spring 39. The cam is pivoted to the dolly at 31 and is shaped so as to provide the desired quick or slow action of the contact member.
Patent GB-848316-A (GB)
Title: Improvements in and relating to hydraulic power lifts particularly for agricultural tractors
Inventor: RITTER KASPAR
IPC: A01B63/10
Filed: 1959-04-01
Abstract: 848,316. Hydraulic apparatus. ALLGAIERWERKE G.m.b.H. April 1, 1959 [April 1, 1958], No. 10983/59. Class 69 (2). An hydraulic motor for lifting implements on an agricultural tractor comprises a cylinder 2 having a piston 10 which is subjected on one side to liquid pressure and actuates lifting arms 14 through the intermediary of a connecting rod 11, crank arm 13 and a transverse shaft 12, and a crankcase 15, which is constructed to withstand high pressure, up to, say, 50 atmospheres gauge, is permanently filled with the pressure medium, and communicates with the return pipe 9 for the liquid pressure through a pipe 25, 26 having a stop valve 27 preventing flow into and out of the crank-case when control means 3 for the admission and release of liquid pressure to and from the cylinder is in neutral. The control means consists of a member 3 having a cam 33 which, upon rotation of the member, controls a double valve 7, 8 connecting either a supply pipe 16 or the return pipe 9 to the cylinder to move the piston 10 and operate an implement attached to the lifting arm 14; a slight back-pressure is maintained in the return pipe 9. A portion 27 of the member acts as the stop valve to close the connection between the pipes 25, 26 leading, respectively, to a pipe 24 communicating with the crankcase 15 and the return pipe 9, when the double valve 7, 8 is closed, the arrangement hydraulically locking the piston in position so that external mechanical forces cannot cause the crank arm 13 to strike the crank-case. The member 3 can be axially displaced so that the double valve 7, 8 cannot be opened or the pipes 25, 26 connected together, and hence the lifting arm actuated, when the member 3 is rotated to connect a pipe 34 leading to one or more other implements to the liquid supply; the member 3 is releasably retained in one or other of its end positions by a spring-urged locking element 36. A control rod 30 is attached at one end to the crank arm 13 and at the other end to a lever 3<SP>1</SP> to rotate the member 3 and close the double valve 7, 8 and the connection between the pipes 25, 26 when the crank arm has moved to the end of its stroke. A pressure-relief valve 32 is provided in a cover plate 151 to prevent excess pressures occurring in the crank-case.