baber/WOPTO huggingface dataset:
Patent GB-1217196-A (GB)
Title: Pressure regulator
IPC: G05D16/06
Filed: 1968-07-26
Abstract: 1,217,196. Flying suits pressure control. VAPOR CORP. 26 July, 1968 [29 Nov., 1967], No. 35808/68. Heading B7U. [Also in Division F2] In a pressure regulator, which in use is designed to. pressurize the suits of aircraft personnel, control of fluid flow between inlet 13 and outlet 14 is achieved by a double-acting closure member 15 which has associated therewith two diaphragms 21 and 22, a chamber 24 formed on the underside of the lower diaphragm 21 being in communication with the outlet 14 via restricted passage 54, 58, whilst the topmost surface of the upper diaphragm is subjected both to the bias of a spring 23 and, in dependance upon the altitude, to either atmospheric pressure or to the pressure prevailing at the outlet 14. At altitudes up to 35,000 feet, the pressure in chamber 25 is equal to the ambient pressure by virtue of the communication afforded by passage 59, 60, 65. At higher altitudes, the ambient pressure allows an evacuated bellows 27 to contract and hence via stem 94 to unseat ball valve member 87, such unseating places chamber 25 in communication with the pressure at the outlet 14 via the passage 99, 97, 96, 93, 75, 76, 77, 78 and 82. With the ball valve member 87 unseated, the inflow to chamber 25 is greater than the flow which can take place through port 59 and hence a net pressure exists in chamber 25. Should the regulator be subjected to acceleration loads in the Y 1  direction, the changed forces acting on the diaphragm are compensated by virtue of the fact that passage 60 becomes restricted by the approach of a ball member 62 towards its seat 63. A similar compensator 28 may be provided for operation when the regulator is subjected to forces in the Y 2  direction. Should the outlet be closed, any leakage past valve member 15 is vented by unseating of a check ball valve member 109 and the separation of the lower diaphragm 21 and the valve stem 20, such separation opening a capillary passage 43, 100 and so placing the space 24 in communication with space 101 between the diaphragms, space 101 being vented via port 102.
Patent GB-801073-A (GB)
Title: Fluid pressure brake system
IPC: B60T13/18
Filed: 1955-12-14
Abstract: 801,073. Cooling friction brakes. SANFORD, R. S., EAMES, J. O., EATON, W. A., SEDERGREN, E. D., and CASLER, R. H. Dec. 14, 1955 [Dec. 14, 1954 (2)], No. 35884/55. Class 103(1). A liquid-cooled friction brake comprises a hollow friction member consisting of a rigid annular piston 17 to the braking face of which is secured a flat flexible friction plate 21 of metal having a high heat conductivity, coolant liquid being circulated through the piston 17 by a pump 4 driven by a vehicle engine 5, only when a spool valve member 43 is moved to connect ports 39 and 40 on initial actuation of the brake by movement of pedal 57. Further movement of pedal 57 by shutting off port 38 leading to the pump raises the pressure in the cooling circuit as a whole so as to cause the piston 17 to apply the metal friction plate 21 to friction lining 35 rotatable with wheel hub member 31, the liquid pressure behind the metal plate element 21 being sufficient to prevent it being flexed inwardly under the friction load. The piston member 17 is fluid tightly guided in the cylinder 9 by means of packing members 19 which act as automatic adjustment mechanism by flexing from the shape shown in Fig. 3, when the brake is applied, back to that shown in Fig. 4. In another embodiment described, similar cooled friction members are applied to both sides of a central rotatable disc. The metal friction surface 21 may be formed with a plurality of grooves 106, as shown in Figs. 2b and 2c, on its back surface to increase the rate of conduction of heat from the metal member to the cooling liquid. Fig. 7 shows an embodiment of the invention in which the coengaging friction surfaces are at an angle to the axis of the brake. For the material of metal friction element 21, plates of # inch and 3/32 inch thickness of substantially pure copper have been very successful. Specification 801,074 is referred to.
Patent GB-1530086-A (GB)
Title: Electrolytic chlorinator
IPC: C02F1/467
Filed: 1977-08-26
Abstract: 1530086 Electrolytic chlorination LICENTO AG 26 Aug 1977 [6 Sept 1976] 36017/77 Heading C7B An electrolytic chlorinator includes an electrolytic cell 20 with a vertical cationic membrane 32, and has a passage 38 between anode 30 and cathode 31 compartments, the level 37 defining the maximum anolyte level and this level and levels C, D being such as to prevent catholyte flowing back into the anolyte. A solid chloride source 50 is connected with a (solenoid) controlled water supply 22 and feeds brine to the cell. A chlorine-water mixer 23 connected to the cell supplies chlorinated water into the body of water e.g. a swimming pool 12, to be chlorinated. As shown, the water-supply adds water also to the catholyte (line 61). The mixer 23 includes a float controlled valve 70-76. Water recirculating from the pool 12 is by-passed through ejector 24 for chlorination. The brine inlet 35/35A is open to atmosphere, and hydrogen is vented at 41. Liquid added to the anolyte displaces the spent anolyte via line 38.
Patent GB-1085214-A (GB)
Title: Improvements in or relating to garments and securing devices therefor
IPC: A41F1/00
Filed: 1964-09-02
Abstract: 1,085,214. Buckles; clamps; stud and socket fasteners. J. J. FRIEDMAN. Sept. 2, 1964, No. 36030/64. Headings E2A and E2B. A garment having an adjustable neck region includes a fastening device attached to one part of the neck region for selective fastening engagement with another overlapping part of the neck region, the device comprising two portions which in the fastening position are located on opposite sides of one part of the neck region. According to Figs. 1 -4 (not shown) for closing the neck band of a cape, the device (3) consists of a bar buckle of metal or plastics material, the buckle having one or two open-ended slots for receiving a free portion of a neck band (2). According to Fig. 5, the device comprises a slotted member which is rivetted to the band the other part of the band being held by the resilience of a central bar. In another form Fig. 6 the device comprises a U-shaped member 15 which straddles one part of the band, the other part of the band being secured to an outer leg of the U, through which a stud bar 16 passes to grip the first part of the band against the outer leg of the U. In a further form, Fig. 9a, the device comprises a U-section member 23 secured to one part of the band and having a free limb 25 which is engageable with slots formed by a toothed member secured to the other part of the band Fig. 9b (not shown).
Patent GB-1215820-A (GB)
Title: Improvements in and relating to pneumatic tyres
IPC: B60C9/20
Filed: 1968-07-29
Abstract: 1,215,820. Pneumatic tyres. MICHELIN & CIE (Compagnie Generale Des Etabs Michelin). 29 July, 1968 [27 July, 1967; 16 May, 1968], No. 36159/68. Heading B7C. Distortion of the surfaces and plies of a radial ply tyre 1, having a deeply grooved tread pattern, during moulding, is reduced by the inclusion of circumferential plies 15, 16 comprising cords of a heat-shrinkable material, such as nylon, radially outward of at least the edges of breaker plies 7, 8, 9. The cords may lie parallel to the mid-circumferential plane, or at an angle of up to 15 degrees thereto, and are preferably between 0À2 and 2 metres in length. The temperature of curing increases the tension in these cords, which constrict the plies to limit their movement.
Patent GB-1557635-A (GB)
Title: Electro acoustic transducer
IPC: G10K9/13
Filed: 1977-08-31
Abstract: An electroacoustic transducer particularly for small small-sized portable equipment such as a wristwatch comprises a first vibrating plate which is vibrated by means of an electromagnet and a second vibrating plate which is coupled with the first vibrating plate by an airtight space which acts as an air spring. The first and second vibrating plates have different natural resonant frequencies so that the vibration system comprising the two vibrating plates and the air spring coupling them with one another forms a vibration system having two resonant frequencies. A resonant air chamber superposed on the second vibrating plate has a sound radiating port and has a resonant frequency between the two resonant frequencies of the vibration system comprising the first and second vibrating plates and coupling air spring. The electroacoustic transducer thus responds to a considerable range of frequencies.
Patent GB-820627-A (GB)
Title: Milling machines
IPC: G05B19/21
Filed: 1955-12-20
Abstract: 820,627. Machine-tool details. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 20, 1955 [Dec. 30, 1954], No. 36440/55. Class 83 (3). [Also in Groups XIX and XXXVII] A horizontal or vertical milling-machine comprises a rotary work-table 14 and means 18, 19 for translating the table by variable increments during successive fixed increments of rotation of the table. The cam 13 is machined by the cutter 12 under the control of a tape 100. The table is rotated by the successive equalangular increments by a motor 15, which also rotates cams 22, 23 to control the tape movements, the cam 22 acting through a magnetically operated clutch to advance the tape one step. The speed of the motor 15 is determined by a hand-set potentiometer 101, or automatically by a stepping-switch having five positions. The motor 19 moving the longitudinal slide 16 is a variable-speed reversible motor controlled through an amplifier 30 and generator 28, and is associated with a feedback device 31, 32. The feedback device includes a counter advanced by reversely operating cams 94, 94a, Fig. 4a, actuating switches 72, 72a which are selectively energized according to the direction of rotation of the motor 19. After each step of the tape, a cam operates to energize a control magnet to cause pins to sense the holes in the tape to determine the speed, direction, and amount of movement of the slide 16 through a binary decimal conversion system including a stepping switch advanced by a relay controlled by the cam 94. Nine speeds of rotation of the motor 19 are provided by introducing resistances into the circuit, and the motor may make up to nine rotations. By replacing the cutter with a tracer, and providing additional circuitry, the machine may be used to gauge a cam after cutting. The tracer controls the motors 15, 19 to maintain a state of no-deflection. The successive numbers of revolutions of the motor 19 is indicated by visual counters, which numbers should be the same as those recorded on the tape. The degree of correspondence gives a measure of the accuracy of cutting. The measured numbers of revolutions may be printed on a tape, the recording being made after each unit-of-rotation of the table 14. In a modification, the number of pulses produced by the tape is compared with the number produced by the cams 94, 94a, and lamps are illuminated according to the correspondence or otherwise of the counts.
Patent GB-981575-A (GB)
Title: An electric generator
IPC: H02H7/06
Filed: 1962-09-26
Abstract: 981,575. Protective arrangements; exciting dynamos. J. G. BRUMMER, and L. M. WHITFIELD. Sept. 26, 1962 [Oct. 3, 1961], No. 36566/62. Headings H2A and H2K. A generator 10, e.g. for battery charging in a motor vehicle, is protected by a thermal switch 20 responsive to the current flowing in the generator shunt field coil 17 and interrupting this current when it reaches a predetermined value. The switch 20 may include a bi-metallic strip which is heated directly or by a heater coil 18. A further thermal switch 30 with heater coil 32 may be connected between the generator armature and the battery 16. Stepped resistors 26 with control switch 28 may be connected in the field circuit and a reverse current relay with coil 12 and contacts 14 may be connected in the armature circuit.
Patent GB-902446-A (GB)
Title: Improvements in or relating to radio and like radio transmitting arrangements
IPC: H03H7/48
Filed: 1960-10-25
Abstract: 902,446. Impedance networks. TELEFUN. KEN G.m.b.H. Oct. 25, 1960 [Oct. 28, 1959], No. 36592/60. Class 40 (8). [Also in Group XL (c)] A coupling arrangement connecting two radio-frequency transmitters S1, S2, to a load A, such as an aerial, comprises a four branch ring circuit each branch of which is a quarterwave #-section comprising a series inductance and two shunt capacitances. All the impedances are formed of short-circuited lengths of coaxial line, the inductive lines being inside the inner conductors of the capacitive lines. The two transmitters are connected to the ends of one branch having a surge impedance equal to that of the load A whilst the load A and a balancing load KA of equal value are connected to the ends of the opposite branch which has a similar surge impedance. The other branches have surge impedances approximately #2 times that of the branches so far described. In one construction of the coupling the four capacitors c connected to the four junctionpoints of the ring are formed of four lengths of coaxial line, parallel to each other and arranged in the form of a square, the lines are shortcircuited at their adjacent ends and also by adjustable sliders 5 (which may be ganged). The lines are between a quarter and a half wavelength long. Inside the tubular inner conductors of each capacitor is a further line short-circuited at the same end and also by an adjustable slider 6. These lines are less than a quarter wavelength long and form the inductances a and b. The sliders 6 may also be ganged. Connectors 1<SP>1</SP>, 2<SP>1</SP>, 3<SP>1</SP> and 4<SP>1</SP> connect the inner conductors of the inductive lines to the next adjacent connection points, which are the inner electrodes of the next capacitors. The arrangement may be modified (Fig. 5, not shown) so that two of the units are turned end for end and connections 1 and 4 appear at the opposite end of the assembly to connections 2 and 3. In a further embodiment (Figs. 6 and 7, the latter not shown), each inductor comprises two line lengths giving equal values of inductance, a/2 or b/2 as the case may be, these are situated one inside each inner electrode of the end capacitors of the #-section forming the branch and the interconnecting links thus lie symmetrically in the middle of each of the inductive elements. In this form there is one a/2 and one b/2 inductor inside each capacitor c.
Patent GB-789722-A (GB)
Title: Improvements relating to casting processes for metals
Inventor: EMBLEM HAROLD GARTON
IPC: B22C9/04
Filed: 1954-03-09
Abstract: 789,722. Making moulds for metal-casting; refractory compositions. ROLLS-ROYCE, Ltd. March 9, 1955 [March 9, 1954], No. 36593/54. Divided out of 789,721. Class 87(2). [Also in Group XXII] Relates to a refractory insert or core which is to form part of a pattern for use in making a metalcasting mould, the core remaining in the mould after removal of wax &c. constituent of the pattern and serving to form a hollow in the metal article (e.g., turbine blade) being made. According to the invention the insert or core is made by investing a strengthening member of silica or alumina with a slurry comprising sillimanite and acid hydrolysed ethyl silicate. Thus the core may be made by casting the slurry 11, Fig. 1, in a mould A, B, around rods 10 made of silica or alumina. The rods may be hollow. A suitable slurry is described, comprising ethyl silicate, hydrochloric acid, methylated spirits, ammonia and light magnesia which gels the slurry. The cast core is then removed from the mould and the alcohol is burnt off before the core is coated (by moulding) with wax or lowmelting point metal to form the pattern (see Specification 789,721. In another example a core in the form of a trident, or cores in the form of simple rods, may be cast as in Fig. 1, for use in making a mould for casting a metal turbine blade having air-cooling passages therein.
Patent GB-1100932-A (GB)
Title: Improved sample vial constructions for use in standardization procedures involving liquid scintillation spectrometry equipment
IPC: G01T1/204
Filed: 1965-02-03
Abstract: 1,100,932. Compartmented containers; caps for bottles. PACKARD INSTRUMENT CO. Inc. 3 Feb., 1965 [18 June, 1964], No. 36666/66. Divided out of 1,100,931. Headings B8D and B8T. A phial to contain a sample when measuring its radioactivity by a scintillation method comprises a transparent body 234 with a non- deformable cap 235 having a compartment 238 to house a standard radioactive pellet 239 which can be released into the sample by lifting a movable plunger 240 as by moving a magnet 241 to a position above it.
Patent GB-1055308-A (GB)
Title: Improvements in and relating to a process for the production of polyolefins
IPC: C08F6/00
Filed: 1963-09-18
Abstract: Polyolefins prepared by "low-pressure" methods and after removal of catalyst residues, are rendered odourless and tasteless by drying them in contact with an atmosphere which contains less than 500 p.p.m. of free oxygen and at a temperature below the melting-point of the polyolefin.  In the example, pulverulent polypropylene, in a damp condition after separation of the washing alcohol and stabilization with known stabilizers, was dried for 5 hours in a vacuum drier at 80 DEG  to 85 DEG  C. at a pressure of 0.1 to 0.2 atmosphere of nitrogen containing less than 1 p.p.m. of oxygen.
Patent GB-1206347-A (GB)
Title: Protective coating and method
Inventor: LAUGHLIN WILLIAM NEIL
IPC: E02D5/60
Filed: 1968-08-02
Abstract: 1,206,347. Coated offshore platform. W. N. LAUGHLIN. 2 Aug., 1968 [25 Jan., 1968], No. 37060/68. Heading B2E. [Also in Division E1] A metal member supporting a platform above the sea has a corrosion-inhibiting coating of cured elastomeric material. The metal member may be coated by pre-treating over a predetermined length, applying a coating of an elastomeric material over the length, curing the coating at elevated conditions of temperature and pressure, allowing the coated member to cool. The member is then installed on an offshore platform in such a manner that the mid-point of the coated area is located at approximately the midpoint of the splash zone. The metal member may be a length of pipe and the pre-treatment may be by sand blasting. A bonding agent for the elastomeric material may be applied to the metal member over the pre-treated area, e.g. a thermo-setting resin such as a phenol-formaldehyde resin. The elastomeric material may be compounded neoprene which may be affixed to the predetermined area by wrapping. In an Example a section of steel pipe is sand blasted and an elastomer wrapped onto the pipe with nylon tape. The pipe is then placed in an oven operating at 80 p.s.i. and 312F. where the coating is cured for three hours.
Patent GB-1035493-A (GB)
Title: Improvements in and relating to electric discharge tube apparatus
IPC: H05B41/24
Filed: 1962-10-01
Abstract: 1,035,493. Supply systems for space discharge lamps. A. R. WARNER and D. A. WARD. Dec. 30, 1963 [Oct. 1, 1962], No. 37067/62. Heading H2H. An illuminated sign comprises a plurality of electric discharge tubes, the discharge in each of which is caused to progress along the tube from one end to the other by applying thereto a high-frequency alternating current of gradually increasing amplitude, the arrangement being such that when the first tube of the series is fully illuminated a relay, responsive to a current condition of the tube other than that of the high-frequency alternating current, is operated to remove the high-frequency alternating current supply from the first tube and apply it to the next tube of the series and simultaneously applying mains frequency alternating current to the first tube to maintain the discharge therein. When the last tube of the series has become illuminated the sign returns to normal and the operation is repeated. Thus only one high-frequency supply is necessary which may be remotely situated from the sign and since the initiation of the discharge in a succeeding tube is dependent upon the detection of the completion of the discharge in a preceding tube the system is independent of mains voltage fluctuations, temperature or weather conditions.
Patent GB-439596-A (GB)
Title: Improvements in or relating to typewriters, particularly typebar typewriters
IPC: B41J11/22
Filed: 1934-12-28
Abstract: 439,596. Typewriters. WANDERERWERKE VORM. WINKLHOFER & JAENICKE AKT.-GES., Sch÷nau, near Chemnitz, Germany. Dec. 28, 1934, No. 37151. Convention date, Dec. 28, 1933. [Class 100 (iv)] Paper-carriages.-In a device for adjusting the platen in the direction in which the types strike, comprising a guide-rail for the carriage adjustably mounted on levers, the levers are pivotally mounted on the machine frame at the junction of their two arms, the rail is attached to the end of one arm of each lever, and the other arms are provided with slots in which work eccentrics mounted on a common shaft which is rotatable by means operable from the front of the machine. The platen 3, is carried by two side plates 2 mounted by pivoted shift-arms 4 and 5 on a carriage 1 which runs on grooved rollers 6 on a rail 8 and a cylindrical roller 7 on a rail 9. The rail 8 is carried by levers 12, pivoted to a shaft 11, and can be rocked backwards and forward by eccentrics 16 actuated by a transmission member 19, biassed by a spring 20. The member 19 is pinned to a member 21, carrying a pin 22 which engages in a helical groove 23 in a rotatable shaft 24. A scale 28 is provided on the machine front and a spring-pressed ball is adapted to engage depressions on the scale to define the position of an actuating-knob 26 so that the platen can be adjusted to produce different numbers of carbon copies. Slides 30 prevent the carriage from moving transversely of the rail 8, and, to ensure that the carriage movement is in the direction of strike of the types, the centre of the rail 8 is arranged to be vertically above the shaft 11 when the carriage is in the middle position. A slide 31 prevents the carriage from rising from the rail 9. The platen is raised for shift by a rail 36 which engages a roller 35 and slide 34 carried by an axle 33 on the plates 2. The rail 36 is carried by arms 38 on a shaft 37 and actuated by a shift-key. The rollers 7 and 35 are displaceable on their rails 9 and 36 in the direction of strike of the types when the carriage is adjusted. The type-guides 43, line-level indicator 44, and ink-ribbon carrier 45 do not move when the platen is adjusted.
Patent GB-317719-A (GB)
Title: Process and apparatus for the treatment of gas or a mixture of gas and vapour in the presence of catalytic agents and for the reactivation of such agents
IPC: B01J8/02
Filed: 1928-12-17
Abstract: 317,719. Compagnie Internationale pour la Fabrication des Essences et Petroles. Aug. 20, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Catalytic apparatus hydrogenized organic compounds, catalytic production of.-In catalytic apparatus in which gases act on solid catalytic materials, either for carrying out catalytic reactions or for the regeneration of the catalyst, the gases are admitted to the catalyst through a large number of perforations or nozzles extending throughout the length of the boundary wall of the inlet passage enveloped by or enveloping the catalyst. In the apparatus shown in Fig. 1 a catalyst contained in a vessel A is reactivated by blowing in air, or steam and air, through a cylindrical inlet B perforated throughout its length. A similar apparatus may be employed for the action on hydrocarbon vapours of nascent hydrogen produced by the decomposition by means of a metal oxide, of the suphuretted hydrogen contained in an injected gas. The sulphuretted hydrogen is admitted through the perforated tube B, hydrocarbons by an inlet A1, and hydrocarbons and residual gases pass out through a tube A2.