baber/WOPTO huggingface dataset:
Patent GB-340182-A (GB)
Title: Improvements in or relating to directional radio receiving systems
IPC: G01S3/06
Filed: 1930-03-10
Abstract: 340,182. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Roberts, W. van B.). March 8, 1929, [Convention date]. Directive signalling; thermionic valve circuits. -The directional characteristics of a receiving aerial are intensified by one or more pre-detector frequency-doubling stages in the receiving amplifier. In one embodiment signals from a tuned loop system 1, 2 are applied to a screen-grid amplifier 5, and thence through two frequency-doublers 12, 16 and a detector 21, biassed appropriately to perform the desired functions and tunable to the required frequency. In a modification, a heterodyne note produced by a local oscillator is passed to the frequency-doubling stages, each of which may amplify at a fixed frequency.
Patent GB-233643-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1924-01-01
Abstract: 233,643. Automatic Telephone Manufacturing Co., Ltd., and Ostline, J. E. Jan. 1, 1924. Drawings to Specification. Automatic and semi-automatic exchange systems.-The relay which holds up a connection is normally under the control of the calling party, but if he hangs up before the called party, another holding circuit under the control of the called party and extending over a talking conductor is completed for this relay. The invention is described as applied to a system in which this transference of release control becomes effective when an automatic subscriber hangs up after calling a trunk operator. The system is identical with part of the network described in Specification 233,007, which claims other features. The holding relay at the exchange selector is initially energized over a front contact of the line relay, but if the calling party hangs up before the operator removes her answering plug, another holding current is sent back over a speaking conductor and a back contact of the line relay, from a repeater which is also used to signal the manual operator.
Patent GB-1196574-A (GB)
Title: Anti-rebound device for a printing mechanism
IPC: B41J9/42
Filed: 1969-02-13
Abstract: 1,196,574. Selective printing. NATIONAL CASH REGISTER CO. 13 Feb., 1969 [7 March, 1968], No. 7824/69. Heading B6F. Anti-rebound arrangements.-A hammer 36 normally latched against spring 82 actuation, Fig. 1 has an anti-rebound energy absorbing device comprising an entrapped ring 90 loosely carried by a stud 88 and aligned for direct driving engagement with a type-bar 30. When the hammer is released for actuation by a latch tripping mechanism 54, 62, 72, 18 from a cyclic operation of a shaft 10, the hammer drives the type bar with the ring 90 in normal horizontal position. The hammer 36 is stopped by a bar 96 before the type reachs the platen so that impression is effected by momentum. The ring 90 falls to a second or vertical position (Fig. 4) so that when the type bar rebounds it has to shift the ring back to normal or horizontal position thereby absorbing energy.
Patent GB-1201452-A (GB)
Title: Improvements in or relating to stacked electric circuit constructions
IPC: H05K7/20
Filed: 1969-02-13
Abstract: 1,201,452. Circuit assemblies. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 13 Feb., 1969 [29 Feb., 1968], No. 7940/69. Heading H1R. Components mounted on a stacked electric circuit construction are cooled by inserting the stack into a heat conductive housing in such manner that the edges of heat conductive plates of the stack are in contact with the walls of the housing. Integrated circuits are mounted on spokes 3 and tongues 4 of a flexible metal plate 1 provided with spring tongues. Electrical connection is made to the integrated circuits by connector plate 6 having a pattern of electric conductors on its surface and which is mounted on the underside of plate 1. Screening plate 10 rests on the top face of plate 1 and covers all the integrated circuits of its plate. The stack is assembled by first mounting a spacer ring 11 and distributer plate 16 over tie rods 13 projecting from base 12 and connecting the cable wires projecting from the housing base 12 to terminals 17 on distributer plate 16, which terminals 17 are connected by electrical conductors to terminal connections 7. Further spacer rings 11 and distributer plates 16 are mounted over the tie rods and over a last spacer ring is mounted a plate assembly 1, 2, and 10. This is followed by the next spacer ring 11 and plate assembly. The final screen plate 10 is omitted. Notches 8 in screen plates 10 and rings 11 allow for connections to be made between the terminals 7 of the plate assemblies and distributer plates. The stack is inserted in a metal cylindrical housing, Fig. 3 (not shown), with the spring tongues 2 against the inner surface of the housing to provide good heat transfer to the housing. A good weather seal is provided between the housing and housing base. Insulating layers may be provided with connector plates 6 and plates 1.
Patent GB-675284-A (GB)
Title: Improvements in means for the prevention of condensation in metal structures such as ships
IPC: B63J2/12
Filed: 1949-03-24
Abstract: 675,284. Cargo ships. STEWART, I. M., HAY, Sir D. A., and BLACKWOOD, D. D., (Representatives of STEWART, Sir F. C.). March 22, 1950 [March 24, 1949], No. 8024/49. Class 113 (ii). [Also in Group XIII] A metallic ship structure is provided with an automatic control of the effective heat output of a heating means H which is applied to a wall, bulkhead W, floor or ceiling in an unrefrigerated space R adjoining a refrigerated cargo space P to maintain the bulkhead or the like above the dew point in the space R and prevent the formation of condensation. The heating means may comprise electrically heated cables or elements in a metal sheath, Fig. 2 (not shown), or a metal pipe H welded to the bulkhead W close to where it joins the deck D and through which pipe passes a fluid, such as sea water heated if necessary. Thermostats, humidistats or dew point sensitive instruments control the temperature, or flow, of the fluid or the electrical supply for the heating means. Since heating of the atmosphere of the space R is undesirable, the heating means is insulated therefrom.
Patent GB-1524912-A (GB)
Title: Stator of a traction motor
IPC: H02K3/487
Filed: 1977-02-25
Abstract: 1524912 Closures for motor winding slots THYSSEN INDUSTRIE AG 25 Feb 1977 [19 March 1976] 08073/77 Heading H2A Winding slots 2 are closed by oversize flexible strips 6 of insulating plastics engaged in notches 3.
Patent GB-151902-A (GB)
Title: Improvements in suction and delivery valves for compression pumps
IPC: F04B39/00
Filed: 1920-03-18
Abstract: 151,902. Chew, L., and Jennings, W. F. March 18, 1920. Valves, arrangement of.-In a compressor of the kind in which the suction ring valves are disposed upon the top of the piston and communicate with the interior thereof, and the delivery ring valves are mounted within a hollow head, the suction valves are mounted so that their concentricity is maintained by their contact at three points with spring-urged steady pins provided with means for limiting the lift of the valves and facilitating their removal. As shown, the suction valves 11, 12, Fig. 1, are disposed over the annular grooves 7, 8 in the piston-disk 2, the grooves communicating with the interior of the piston through inclined holes 7<a>, 8<a>. The valves are maintained in position by tee-headed steady-pins 13 which pass through the disk. A gas-tight joint between the pins and the disk is obtained by means of shoulders 15 on the pins held against seatings in the disk by means of springs 16. The valves may be removed by raising and turning the pins so that their tee-heads 14, Fig. 4, rest upon a projection 17 on the disk. The delivery valve 30 is mounted within a hollow valve-box consisting of disks 20, 23 secured together by a stud 21 and a flanged nut 22. The valve-box is held gastight upon the seating r of the cylinder by a spring q, and the discharge valve is maintained in position by means of projections 39 on the disk 23 and springs 33. Communication between the discharge side of the piston and the delivery conduit t is obtained through inclined holes in the disk 20 and an annular groove 37 and radiating conduits 38 in the disk 23. Ring valves having deflecting- ribs on their lower surfaces may be used.
Patent GB-882504-A (GB)
Title: Improvements relating to tyre building machines
IPC: B29D30/30
Filed: 1958-03-14
Abstract: 882,504. Building tyres. DUNLOP RUBBER CO. Ltd. March 14, 1958 [March 21, 1957], No. 8193/58. Class 144 (1). Tyre ply material is centrally applied to a building drum 5 from a stock roll 2 by means of a platform 33 carrying the ply-end and movable from a retracted position to an advanced position tangential to the drum surface, the platform carrying means 37 to throw the ply end 3a on to the drum surface on movement to the advanced position. As shown, the stock rolls 2 are located below a table 1 carrying driving means 23 for each roll 2, whereby the ply stock is fed via a controlled loop 29 and guide rollers 31 to the associated platform 33. Each platform 33 is pivotally mounted on the machine frame 17 through levers 34 (only one shown) for parallel motion between the retracted and advanced positions (Figs. 3 and 4 respectively) and each has a plate 37 pivoted on a shaft 38 at its free end for swinging movement forwardly and upwardly carrying with it the ply end 3a which is doubled back over a roller 39 at the end of the platform 33 to rest on the plate 37. Fixed to the shaft 38 is a bell-crank lever 41 having a roller 42 on one arm to engage a cam surface 43 during advance and retraction of the platform, the other arm of the lever 41 being connected by a spring 45 to a bracket 46 on the platform. Rotation of the lever 41, and thereby the shaft 38 and plate 37, under the action of spring 45 is normally prevented by an arm 47a of another bell-crank trigger 47 which is pivoted to the bracket 46 and loaded by a spring 49. In operation, at the end of the advance movement of the platform 33, the arm 47b of the trigger 47 is moved by a stop 51 to release the lever 41 so that the plate 37 is moved to throw the ply end on to the drum surface where it is held by a suction device 6, the movement of the plate being limited either by a stop 52, or by engagement of the roller 42 with the cam 43. After the ply 3 has been torn to splice a band on the drum 5, the free end of the stock roll is thrown back by the operator on to the plate 37 and the platform 33 is retracted, whereupon the cam 43 rotates the lever 41 until the trigger 47 can spring into its locking position, Fig. 3. The throwing action of the plate 37 is alleged to ensure correct positioning of the ply end on the drum irrespective of the position it is placed in on the plate by the operator. Specifications 882,203 and 882,503 are referred to.
Patent GB-1440704-A (GB)
Title: Anti skid control system
IPC: B60T8/72
Filed: 1974-02-22
Abstract: 1440704 Aritiskid braking systems ROCKWELL INTERNATIONAL CORP 22 Feb 1974 [25 April 1973] 8229/74 Heading F2F An antiskid braking system for a vehicle comprises a fluid pressure operated wheel brake, a valve for modulating the fluid pressure applied to the brake and control means responsive to the velocity and deceleration of at least one braked wheel to control the valve in accordance with a modulating signal so that the percentage slip of the wheel is caused to track about that value which yields maximum adhesion, the control means being operative when fluid pressure is initially applied to the brake to institute a preliminary control sequence for the valve in which the application of pressure is interrupted except for a pulse of pressure of predetermined duration, during which pulse the applied pressure is progressively reduced, and the control means being operative on conclusion of the preliminary control sequence to effect the said control of the valve so that the percentage slip tracks the said value. Following the preliminary sequence the control means are caused to alternate between a first state in which the modulating signal varies in the sense relieving fluid pressure and a second state in which the signal varies in the sense restoring fluid pressure, the control means being arranged to institute the first state in response to the wheel deceleration exceeding a first deceleration threshold or in response to a combination of the wheel deceleration exceeding a second deceleration threshold smaller than the first and of the wheel velocity being within a range between upper and lower velocity thresholds, and the control means being arranged to institute the second state for a period not exceeding a predetermined duration, which is of the order of ten times the response time of the valve, in response to the combination of the wheel deceleration being less than the second deceleration threshold and the wheel velocity being at least equal to a third velocity threshold smaller than the said lower velocity threshold. Each sensor of a dual set 14 provides pulse signals which are processed to determine the velocity and rate of change of velocity of an associated wheel in a microcircuit chip 15 to the output of which feeds a pressure modulation control signal to a valve driver stage 12 controlling solenoid-operated valves 10 which modulate the braking pressure.
Patent GB-992716-A (GB)
Title: Improvements in or relating to vacuum-cleaners
IPC: A47L5/36
Filed: 1962-03-02
Abstract: 992,716. Suction cleaners. MEFINA S.A. March 2, 1962 [May 30, 1961], No. 8241/62. Heading A4F. [Also in Division H2] In a vacuum cleaner comprising a casing formed in three separable parts 10, 3, 2, the front part 10 carrying a suction nozzle 4, the intermediate part 3 containing a dust filter 9 and the rear portion 2 providing a support for the motor 7 and fan 8, the motor-fan assembly being retained within the rear portion 2 by means of a recessed cover plate 19 which is attached to the rear transverse wall 18 of the part 2 by means of long bolts 15 whose heads 17 are seated in countersunk recesses in the wall 18 and which pass through corresponding holes in the cover plate 19, and nuts 28, 29 (or alternatively rings retained against forward movement by means of a small pin passing through a suitably positioned transverse hole through each bolt 15) holding the plate 19 in place over the motor-fan assembly while leaving the bolts free to rotate, the bolts 15 also provide the means for securing the parts 2 and 3 together, the threaded ends of the bolts fitting into corresponding externally threaded members 32 supported by lugs from the internal surface of the part 3 so that the bolts 15 and members 32 may be screwed together by rotation of the exposed heads of the bolts. The motor-fan assembly is provided with a rearwardly extending base 21 which fits into a rubberlined recess in the rear wall 18. The rear wall 18, which is recessed from the end of the rear part of the casing 2 is provided with a connector for the electrical supply and a handle 11 secured to the part 2 carries a button 13 for actuating the onoff switch. If the cleaner is to be used as an upright-type cleaner, a hollow handle 6 may be inserted in a socket constituted by the outlet in the rear wall 18. The handle may be secured or released within the socket by movement of a handle 44 to cause the radial movement of resilient locking pads 41 within the tubular socket. The front part 10 of the casing is secured to intermediate part 3 by means of catches 59 engaging within notches 63, the catches being released by radially outward movement of the forward ends 65 of pivoted lever 60 upon which the catches 59 are pivoted. The nozzle 4 comprises a tube rotatably mounted in a bush 46 secured to a re-entrant portion of the front part 10 to which a paper filtering bag is attached by means of a ring 54. A variable by-pass for the air inlet is provided to permit variation of the suction force of the cleaner, apertures 68 in the intermediate part 3 of the casing being covered to a variable extent by rotation of a disc 69.
Patent GB-328734-A (GB)
Title: Improved process for the production of oil from palm fruit and other oil seeds
IPC: C11B1/04
Filed: 1929-03-14
Abstract: 328,734. Vegetable Oil Machinery Syndicate, Ltd., and Moores, J. March 14, 1929. Fatty oils. extracting.-In the extraction of oil from palm fruit and similar oil seeds, the fruit is cooked by steam in a vessel having a false bottom through which the steam passes, the cooked fruit is then pressed to extract oil therefrom. and the extracted oil is heated to about 200‹ F. and filtered. In a modification, the cooked fruit is depulped and the pulpy material is heated before pressing &c. The process may be applied to ground, wood, or shea nuts, or to soya beans, copra, or sunflower, sesame, linseed or mustard seed.
Patent GB-467455-A (GB)
Title: Improvements in or relating to processes for the treatment of ores or metallurgical products containing precious metals
IPC: C22B11/08
Filed: 1936-03-20
Abstract: Pulps of the kind resulting from the treatment of ores and the like with cyanide are treated in order to facilitate the separation of the metal-bearing solution from the pulp by the addition to the pulp, before settlement or filtration, of an alkaline solution of starch or material rich in starch such as wheat flour, maize meal, or ground cassava roots.
Patent GB-1045962-A (GB)
Title: Tampon applicators
Inventor: ROBINSON CHARLES PORTLAND
IPC: A61F13/26
Filed: 1963-03-01
Abstract: 1, 045, 962. Tampon introducers. ROBINSON & SONS Ltd. Jan. 30, 1964 [March 1, 1963; March 18, 1963], No. 8402/63 and 10587/63. Heading A5R. The ejector of a tampon applicator is fitted around the outside of the applicator for transit and storage but is collapsed to a smaller cross-section when required for use. In one form, the ejector 4 is made from card, or similar material, in a hexagonal cross-section so as to fit outside the tampon housing member 1. It is weakened by slotting, at 6, and when required for use, is removed from the member 1 and collapsed by finger pressure at the point 9 so that it is converted into a square crosssection 8, as in Fig.3,(not shown) whereby it can be introduced into the member 1. The natural resilience of the material from which it is made causes it to engage the bore of the member 1 frictionally. It is also proposed that the ejector member may initially be a simple piece of longitudinally-scored card wrapped around the tampon housing member. This may be folded longitudinally into a zig-zag form when required for use.
Patent GB-559884-A (GB)
Title: Improvements in the construction of storage tanks and the like
IPC: B65D6/16
Filed: 1942-06-19
Abstract: 559,884. Tanks &c. BRAITHWAITE & CO. (ENGINEERS), Ltd., and PARTRIDGE, F. A. June 19, 1942, Nos. 8411 and 10901. [Class 69 (i)] Relates to storage tanks and like structures built of peripherally flanged plates and consists in the use of pre-fabricated units consisting of two or more such plates connected together in angular relation along abutting edges as by welding, the units having co-planar edge flanges made continuous at the angles by means of an insert. The flanges may be internal or external, and the welding may be continuous inside and intermittent externally. Corner units 11 are formed by welding three flanged plates together ; between such uni's may be used units 15 consisting of two flanged plates welded together. Bracing rods 13 may be provided. To permit the use of continuous packing between such units, triangular or quadrantal plates 12a are welded between flanges 12 of a unit. The units are connected together by bolts or rivets, or by clips as described in Specification 559,885.
Patent GB-161815-A (GB)
Title: Improvements in or relating to apparatus for electric welding and cutting
IPC: B23K9/00
Filed: 1920-03-22
Abstract: 161,815. Morse, J. A. V. March 22, 1920. Uniting and perforating or dividing by fusion.- In an apparatus for electric arc welding or cutting under water, the electrode is movably mounted in a bell applied to the work and from which the water is forced out by compressed air. In the form shown, the bell A, which carries an annular brush N of wire or layers of gauze to press against the work and has an observation window M, is provided with a screwed fitting B, having an annular passage, which is connected to the bell by ports B<4> and to a source of compressed air through a valved branch pipe B<1> connected to the supply-pipe D. The electrode C, which is insulated from the bell by a rubber washer E, is held in a split tube G mounted in a tubular member F. which is connected to the fitting B by a fairly stiff flexible tube L of rubber or other insulating- material so that the electrode may be moved relatively to the bell and work. The tube G is separated from the member F by an insulating- plug H and is held in contact with the cable J, which is mounted in insulating-packing K secured in the member F by a screwed gland F<1>. For acting on irregular surfaces the brushes N may be spring-mounted.
Patent GB-942281-A (GB)
Title: Poly-ª -olefine compositions and stabilizer combinations therefor
IPC: C08K5/17
Filed: 1961-03-08
Abstract: A solid polyolefin is stabilized with a combination of a diester of 3,31-thiodipropionic acid and a hydroxyl-containing amine of formula:- <FORM:0942281/C3/1> , <FORM:0942281/C3/2> , <FORM:0942281/C3/3> , <FORM:0942281/C3/4> wherein R1, R2, R3, R4, R5, R6 R7, R8, R9 and R10 are C1 to C18 alkyl radicals and R11 is a C1 to C18 alkyl or alkoxy radical. Many polyolefins and stabilizers are listed, among which the particularly specified polymers are derived from ethylene and/or propylene and the preferred stabilizers are dilauryl-3,31-thiodipropionate, 4-hydroxy -41- methoxydiphenylamine, N-lauroyl-p-aminophenol N,N-bis (2-hydroxy-3-t-butyl -5- methyl benzyl) methylamine, 3-t-butyl -41- hydroxy diphenylamine and 2,6,-di-t-butyl-p-(dimethylaminomethyl) phenol.  The applications specified are as sheet, rod, tube, pipe, film and coatings.
Patent GB-161429-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/46
Filed: 1920-03-23
Abstract: 161,429. Barrows, J. E. March 23, 1920. Sparking-plugs. - After being screwed into position, the nut 3 that clamps the insulation in position is closed by radial pressure into flats 2 on the central electrode. The outside of the nut is then turned to a regular shape.
Patent GB-1486402-A (GB)
Title: Apparatus for cleaning aqueous effluents by means of inorganic adsorption media
IPC: C02F1/28
Filed: 1976-03-03
Abstract: 1486402 Cleaning aqueous effluents using inorganic adsorbents BERGWERKSVERBAND GmbH 3 March 1976 [5 March 1975] 08573/76 Addition to 1472529 Heading C1C Adsorption apparatus for removing organic substances from aqueous effluents, comprises a vessel having in its upper region an outlet for treated effluent and an inlet for inorganic adsorption medium, and at its lower end a downwardly tapered discharge funnel leading to means for removal of inorganic adsorption medium, and in which a hollow upwardly tapered effluent distribution body is mounted in the upper region of the discharge funnel and is provided with an effluent inlet, the upper surface of the said body being inclined at 40 degrees to 60 degrees to the horizontal and containing a plurality of outlet ports having a total area of 0À1 to 1À0% of the cross-sectional area of the vessel, the internal surface of the discharge funnel being inclined at 50 to 70 degrees to the horizontal, and the said body and funnel defining a gap 50 to 100 mm. wide surrounding the said body. The inorganic adsorbent passes downwards through the absorber and the effluent upwards. Suitable inorganic adsorbtion media include Keiselguhr, silica gel or Al 2 O 3  pelletized or granulated form.