baber/WOPTO huggingface dataset:
Patent GB-1268157-A (GB)
Title: Controlled ac switching device
IPC: H03K17/725
Filed: 1970-07-22
Abstract: 1,268,157. Switching circuits. WESTING- HOUSE ELECTRIC CORP. 22 July, 1970 [8 Aug., 1969], No. 35497/70. Heading H3T. A load, e.g. a stapling machine, is energized for one half cycle only of an A.C. supply by a semi-conductor controlled rectifier 12, to the triggering electrode of which is connected first circuit means (capacitor 14) which develops a gating potential during the half cycle that the rectifier 12 is reverse biased and second circuit means (capacitor 16) which also develops a voltage during this half cycle, the first circuit means being effective to turn on the rectifier 12 during the following half cycle, during which the second circuit means continues to develop voltage up to the peak value of the supply (via diode 29) so that on the next and subsequent reverse bias half cycles the first circuit means is inhibited from developing a gating voltage until a switching means 18 is put to a " reset " position and back to a " set " position. Capacitor 14 is charged via diodes 22, 26, capacitor 16 and the load, and is discharged via the gate/ cathode of thyristor 12 and a resistor or transistor 28, which is selected or controlled so that the discharge extends into the forward bias half cycle. In the " reset " position of 18, capacitor 16 is discharged through a resistor 20. A resistor R compensates for varying sensitivity of thyristors and a capacitor C prevents spurious operation due to transients.
Patent GB-1440815-A (GB)
Title: Vehicle simulator sound simulation system
IPC: G09B9/22
Filed: 1973-07-25
Abstract: 1440815 Flight simulators SINGER CO 25 July 1973 [2 Aug 1972] 35517/73 Heading B7W A flight simulator has a plurality of speakers and a system serving the speakers so that frequency, amplitude and source direction of separate sounds generated in operation of a simulated aircraft are presented to a trainee. Selecting apparatus for generating engine noises, Fig. 1, a computer 13 provides inputs to voltage controlled oscillators 11, 17, 21 which in turn feed voltage controlled attenuators 12, 19, 23, the control voltages being supplied direct from computer 13, the outputs from the attenuators 12, 19, 23 which respectively represent sounds of a first compressor, second compressor and turbine being summed in an amplifier 29, the output from which is fed, together with the output from a system 25, 27 representing engine flame noise, to an amplifier 31. The output from amplifier 31 is fed to a controller 35 which ensures a response approximate to the response of the human ear and is influenced also by a signal (not shown) which is varied according to whether the cockpit canopy is open or closed. The output from controller 35 feeds further controllers 37, 39 which energize through amplifiers 41, 43, 48 speakers 45, 47, 49 respectively at right, left and aft positions within the cockpit. As the simulated operation moves from subsonic through sonic to supersonic speeds signals fed from the computer over line 51 and through an amplifier 53 will cause the level of sound from the right/left and aft speakers to vary to simulate in-flight conditions. Similar systems are described to simulate the sounds which result from the aircraft moving through the air and also those sounds which are heard on the ground, e.g. undercarriage and landing wheel noise, a ground-service carriage (Fig. 3, not shown) and description is given with reference to Figs. 2, 4 and 5 (not shown) of the control sequences that ensure the generation of the various sounds in correct sequence.
Patent GB-1281831-A (GB)
Title: Process and apparatus for the manufacture of fibrous sheet materials
IPC: D21F9/02
Filed: 1969-07-15
Abstract: 1281831 Papermaking FELDMUHLE ANLAGEN UND PRODUKTIONS GmbH 15 July 1969 [15 July 1968] 35573/69 Heading D2A A paper-making machine in which the wire, in the forming zone, is inclined to the horizontal and forms one side wall of a trough to which pulp is supplied, is characterised in that each of the edges of the inclined portion of the wire travels through a tubular chamber 4 supplied with water. Each chamber may be subdivided at intervals along its length into separate compartments, to each of which the supply of water is independantly controllable. The pressure in the compartments are higher than the pressure of the pulp at the level of the compartment. The internal width of the chamber is preferably more than twice the possible deviation from the normal position of travel. The independant compartments may correspond with independant suction boxes.
Patent GB-1159923-A (GB)
Title: Method and Apparatus for Transferring Ink in Gravure Printing.
IPC: B41M1/10
Filed: 1966-08-09
Abstract: 1,159,923. Printing processes. GRAVURE RESEARCH INSTITUTE Inc. 9 Aug., 1966 [7 Oct., 1965], No. 35620/66. Heading B6C. A method of gravure printing on the surface of a dielectric material 17 with a liquid gravure ink comprises the steps of generating an electric field that passes through the material at the nip between the gravure cylinder 11 and an impression cylinder 19 by applying an electric charge to the impression cylinder whereby there is impressed on the ink in the cells of the gravure cylinder at the nip an induced charge due to the field, the intensity of the charge being such that it overcomes the surface tension forces that normally hold the ink in the cells with a concave meniscus, and causes the surface of the ink in the cells, adjacent its boundary, to bulge convexly while remaining continuous (Fig. 7, not shown). Cylinder 19 may have an insulated inner metal core 20 connected by brush 21 to power supply 22. Layer 23 may be of a resilient, semi-conducting rubber. In another form (Fig. 3, not shown), cylinder 19 is of grounded conductive rubber carrying an outer layer of P.T.F.E. or polyurethane. Charge is applied by a corona device extending along the outer surface of the cylinder adjacent the nip. Alternatively (Fig. 4, not shown), cylinder 19 comprises resilient insulating rubber coated with a grounded layer of conductive silver lacquer which, in turn, is coated with insulating material. Charging is by corona wire or by a series of contacts connected with the power supply and extending along the outer surface of the cylinder adjacent the nip. In a further form (Fig. 5, not shown), cylinder 19 comprises a metal core having an insulating layer of resilient rubber bearing a coating of silver paint. Charge is applied through a series of contacts riding on the outer coating. The power supply (700 volts) is provided by a circuit (Fig. 2, not shown) which is energized when the press reaches operating speed. The circuit is arranged to shut off the power if (e.g. due to an imperfection in the web) excessive current flows across the nip. The current is then restored after a predetermined time has elapsed.
Patent GB-781273-A (GB)
Title: Improvements in or relating to sliders for slide fasteners
Inventor: MIKULAS WILLIAM
IPC: A44B19/26
Filed: 1954-02-01
Abstract: 781,273. Sliding clasp fasteners. CONMAR PRODUCTS CORPORATION. Feb. 1, 1954. No. 35813/55. Divided out of 781,272. Class 44 A slider, for slide fasteners of the type having two stringers of spaced inter lockable elements, comprises two wings spaced. apart by a neck at least one of the wings. having inturned flanges to define a Y- shaped internal channel, and guiding. means formed at least partly in that portion of either or both wings below those ends of the flanges that are nearest to the neck to guide extraneous material caught. between the elements and the slider out of the channel. In Figs. 7 and 8 the guiding means comprises grooves G separated by ribs R formed in the inturned side flange of the slider. The grooves G are preferably inclined at an angle A of about 15 degrees. The grooves G may be formed on the inner surface only of a slider wing or may be combined with grooves in the inturned side flanges which are preferably in alignement as shown in Fig. 15 which also shows grooves formed in the stem portion of the slider. The side flanges on one side of the slider, preferably that carrying the pull tab, can be omitted and the flat inner surface of the flangeless wing- may be formed with grooves.
Patent GB-511261-A (GB)
Title: Improvements in or relating to rubber toys and whistles therefor
IPC: A63H5/00
Filed: 1938-12-09
Abstract: 511,261. Whistles. SEMPERIT OESTERREICHISCH-AMERIKANISCHE GUMMIWERKE AKT-GES. Dec. 9, 1938, No. 35913. Convention date, Dec. 10, 1937. [Class 13] [Also in Groups XV and V] A whistle for a hollow rubber toy comprises a rubber container with opposing perforations h and may be made by cementing or vulcanising together two parts a and b or can be made in one part by coagulating a rubber dispersion in a mould. The whistle is then pierced.
Patent GB-746884-A (GB)
Title: Improvements relating to the production of calcium carbide
IPC: C01B32/942
Filed: 1953-12-24
Abstract: In the shaft furnace production of calcium carbide from calcareous material and solid fuel consisting mainly of carbon, starting the process under producer gas conditions, employing only sufficient calcareous material to form a slag, and when the slag has properly formed; increasing first the proportion of the calcareous material in the starting mixture charged and then the oxygen content of the blast so as to produce carbide.  The calcareous material contains calcium oxide as such or as hydroxide or carbonate, and may be unslaked lime, limestone, dolomite or Martin slag.  The oxygen content of the blast is preferably increased at the moment when the charge of increased calcium content reaches the burner zone and is preferably first raised to a percentage higher than that desired during steady conditions and gradually reduced thereto.  The blast may consist of a mixture of oxygen and steam or oxygen enriched air.
Patent GB-503442-A (GB)
Title: Improvements in or relating to work feeding mechanism for knife blade grinding or polishing machines and the like
IPC: B24B19/00
Filed: 1937-12-30
Abstract: 503,442. Grinding or polishing knife or like blades. WALTERS, B. Dec. 30, 1937, No. 36051. [Class 60] A machine for grinding or polishing knife or like blades comprises a workbed 10 supported by trunnions 12 and 13 in bushings which are pivotally mounted in cross-heads 14 and 15 carried in brackets 16 and 28 secured to a slide 17 which is reciprocable on a base 26 so as to carry the work, across the periphery of a grinding or polishing wheel 36, the canting of the bed 10 being controlled by an arm 37 depending from the bed and having a spherical or cylindrical end 38 engaging between the walls of a slot 39 in a cross-slide 40 movable on the slide 17. The cross-head 14 is urged upwardly by a spring 18, the movement being limited by an adjustable stop 21, while the cross-head 15 is urged downwardly by a spring 60 so as to maintain a depending stem 23 in contact with a longitudinal groove 25 in the base 26. The groove 25 has a step 27, whereby the cross-head 15 is raised and lowered during the reciprocations of the slide 17. Feed is effected by vertical movement of the base 26, excess feed resulting in downward movement of the bed 10 relative to the slide 17 against the action of the spring 18. Thus, the cant of the bed 10 is not affected by vertical movement of the bed relative to the slide 17 caused either by excessive feed or by the step 27. Alternatively, a ball or cylinder projecting from the slide 40 may engage a slot in the arm 37. The work is held in a chuck 31 which is pivotally mounted on the bed 10, the angular position of the chuck being controlled by a manually-operable screw 34 journalled on the bed and engaging a nut 33 formed on an arm 32 projecting from the chuck. The slide 40 may be manually adjusted or, as shown, may be moved automatically during the movements of the slide 17. Thus, the slide 40 is urged towards one extreme position by a spring 41 and carries a roller 43, or an adjustable cam or screw, co-operating with a guide bar 44 adjustably secured to the bed 26, the profile of the bar 44 being such as to vary the cant of the bed 10 as desired during the movement of the slide 17. In order that the cant shall be different or differently varied during the two directions of movement of the slide 17, a ramp' 48 adjustably secured to the bed 26 co-operates, near the end of one stroke, with a bevelled surface 50 on the slide 40 so as to move the latter away from the bar 44. A spring-loaded plunger 52 carried by a second cross-slide 51 then engages the end face of the slide 40, as shown in Fig. 5, whereby, in the next stroke of the slide 17, the slide 40 follows any movement of the slide 51. The latter may be controlled by a second guide bar similar to the bar 44, or, as shown, may be manually adjustable by a screw 53. Near the end of this stroke, the plunger 52 engages a stop 55 adjustably secured on the bar 44 and is thereby disengaged from the slide 40, 'the latter being thus restored to control by the bar 44.
Patent GB-996400-A (GB)
IPC: B25D1/00
Filed: 1963-09-13
Abstract: 996,400. Hammer handles. G. SCHWARZ, and K. H. VON DER LEY, [trading as SCHWARTZ & VON DER LEY]. Sept. 13, 1963 [Sept. 14, 1962; Dec. 4, 1962; July 29, 1963], No. 36121/63. Heading B4K. In a hammer having a shaft secured by a wedge 5 driven in at the end face, the shaft is of plastics material and the part secured in the opening in the head has a preformed recess provided with barb-like projections 6 extending in the longitudinal direction of the shaft, the wedge which has projections 8 corresponding to the projections 6, being driven into the preformed recess. The wedge has an integrally formed plate 9 protruding beyond the opening 1 and the shaft has a shoulder 10 providing a stop. The shaft is roughened by providing a honeycomb design to increase the grip. In a modification, Figs. 7, 8 (not shown), the recess is substantially circular in cross-section, the wall of the recess having four radial slots arranged symmetrically over the circumference. Ribs are provided on the outer surface of the inserted part of the shaft. In another modification, Fig. 6, an oval recess 12 is provided having longitudinally extending thin walls 14 which allow expansion of the recess when the wedge 5 is driven in. In another modification, Fig. 11, a reinforcing tube 18 is embedded in the shaft 41. The lower part of the shaft has vent holes 20 therein. Instead of the tube 20, a flat steel rod split and splayed at one end may be provided.
Patent GB-1055950-A (GB)
Title: Coupling device
IPC: G11B15/66
Filed: 1965-08-23
Abstract: 1,055,950. Cine film spools. LOEWE OPTA A. G, Aug. 23, 1965 [Aug. 28, 1964], No. 36134/65. Heading G2E. [Also in Divisions F2 and G5] A film spool 4 is releasably secured on a hub 2 by pins 9 pressed by a spring 5 into axial grooves 11 as radial bases, Fig. 3 (not shown), in the spool.
Patent GB-1150444-A (GB)
Title: Improvements in or relating to Moving Coil Instruments
Inventor: LACEY ALBERT FREDERICK
IPC: G01R5/04
Filed: 1965-08-24
Abstract: 1,150,444. Electric meters. SMITHS INDUSTRIES Ltd. Aug. 4, 1966 [Aug.24, 1965], No.36277/65. Heading G1Q. Connection between the coil of a moving coil meter and the inner end of a controlling hair spring is by way of a solderless contact between a connector secured to the coil and a collet secured to the spring. The connector is supported by an insulated part of a spindle carrying the coil and the collet fits over the connector. Fig. 2 shows the coil 43, one limb 59 of which moves in the gap between a pair of annular polepieces 54, 58 which are in the magnetic circuit of a permanent magnet 50 and are spaced apart by a non-magnetic spacer 55. The coil is fitted in a radially adjustable position on a radial extension 42 Fig. 4 (not shown) from a plate (44) which is secured to the spindle 46. A similar radial extension in the opposite direction carries an adjustable counterweight 67 for the coil and two further extensions (not shown) at right angles to the above mentioned extensions carry adjustable poise weights. Adjustment of the coil position is by means of slidable spring clips 65, 66 Fig. 1 (not shown) and of the weight positions by means of ratchet devices 32, 33, 37 Figs.1, 4 and 6 (not shown) in each of which the weight engages two ratchet surfaces whose serrations are staggered by half a pitch. One end of the coil is soldered to a connector portion 20 which passes through the plate carrying the coil, along the surface of this plate and thence along the spindle 46 which it embraces in a C- shaped end portion 17. The shape of the complete connector is shown in Fig. 8. The spindle portion 47 thus embraced is of plastics material which may be formed integrally with the coil-and-weightcarrying plate and moulded on to the metallic core portion of the spindle 46. The collet 61 attached to the hair spring 63 is fitted over the connector portion 17. The other end of the coil is similarly connected to a second hair spring 64 on the same side of the coil as the first hair spring. To make such an arrangement possible, the insulating covering is of increased diameter at the plane of the second hair spring, the portion (18) of the first connector between portions 20 and 17 lies in a slot 12 Fig. 4 (not shown) in this increased diameter insulation, and the connector to the second coil end extends from its C-shaped collet-engaging portion 22 along the spindle and across and through the plate in a path spaced from the path of the corresponding path of the first connector.
Patent GB-970590-A (GB)
Title: Improvements relating to counting devices
Inventor: BROOKES GEORGE
IPC: G06M3/04
Filed: 1961-10-10
Abstract: 970,590. Counters. THOMAS GLOVER & CO. Ltd. Oct. 29, 1962 [Oct. 10,1961], No. 36297/61. Heading G4D. Counting-apparatus can be preset to control apparatus to perform repeatedly a predetermined number of rotations. When a lever 27 is pushed to one side shaft 8, with a number of recesses 9, frees the numeral wheels such as 4 for manual rotation. These wheels are set to register the desired number against fixed discs 5. The wheels 4 and discs 5 have recesses for the reception of cross-pieces of members 6. When the counter is driven in the one direction the number set up is counted down until zero is reached, whereupon all members 6 reach zero recesses simultaneously to close a switch 12, Fig. 3, to operate a solenoid 18 to operate a reversing mechanism. The counter now runs forwardly and when the predetermined number is reached a further switch 17 is operated to start a new cycle.
Patent GB-412264-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J29/06
Filed: 1932-12-23
Abstract: 412,264. Discharge apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blythe Road, Hayes, Middlesex, and McGEE, J. D., 184, Haverstook Hill, Hampstead, London. Dec. 23, 1932, No. 36471. [Class 39 (i).] In discharge devices having one electrode such as an anode supported independently of the envelope from a control or other electrode by means of one or more insulators, disturbances produced by leakage across these insulators due to a high potential difference between the electrodes are avoided by a conductive guardring in contact with the insulators and maintained at a potential near to that of the electrode of lower potential. The invention is applied to a cathode-ray tube with an earthed cathode 3, Fig. 1, a control electrode 5 connected to a high-resistance circuit and biassed to a small negative potential relatively to the cathode, a first anode 7 connected to a low-resistance circuit and biassed by a potential divider to a high positive potential, and a second anode 14 slidably fitting into the glass wall and at a still higher potential to focus electrons passing through diaphragms 15, 16 of the electrodes 5, 7 on to a small spot on the fluoresoent screen. The anode 7 is supported from the electrode 5 by wires 13 and by three glass rods 10, and an earthed guard ring 17 is arranged around the rods 10. The ring 17 is near the ends of the rods 10 adjacent the electrode 5 and prevents disturbance of the bias on this electrode by leakage current across the rods 10 from the electrode 7 and through the high-resistance circuit of the electrode 5. The ring 17 is a metal strip connected by a few wire turns to the rods 10 and incomplete as shown in Fig. 2, so that it is not overheated by the high-frequency currents used during the evacuation and gettering process.
Patent GB-895358-A (GB)
Title: Improvements in or relating to clothes driers
Inventor: HARGREAVES LAWRENCE STUART
IPC: D06F58/10
Filed: 1959-10-28
Abstract: 895,358. Hot closets. NORTH WESTERN SPECIALITIES Ltd. Jan. 25, 1961 [Oct. 28, 1959], No. 36565/59. Class 34(1) A hot closet for drying clothes comprises a cabinet having a lower heating element and upper supporting means for the clothes comprising a rack formed from horizontally arranged spaced rods, each of which is pivoted at one end on a common support for upward swinging movement in a vertical plane and each of which is adjustable on the support to vary the distance between adjacent rods. A hot closet 1 has a bar 4 connected across the top of the closet parallel with and adjacent to one side wall, which bar has hinged thereto spaced-apart and parallel rods 5, the free ends of which rest upon a support bar 7 adjacent the opposite side wall of the closet. The rods 5 have holes at one end through which the bar 4 projects to enable the rods to be individually swung up to facilitate excess to a removable grid 8 supported on ledges 9 within the closet, and also to enable the rods to be slid along the rod to vary the distance between adjacent rods. An electric heating element 2 or fan is fitted below an expanded metal guard plate 10 and the closet is closed with a removable lid 11 having ventilation perforations 12.
Patent GB-923844-A (GB)
Title: Austenitic steel generator rings and steel therefor
IPC: C22C38/58
Filed: 1960-10-25
Abstract: An austenitic steel, suitable for use in generator rings, which is characterized by good cold formability and a grain size no coarser than A.S.T.M. 4 comprises:-  .C.0.6-0.8% .Mn.8-10% .Si.0.2-0.6% .Ni.6-7% .Cr.4-5% .Nb.0.3-0.6% .Fe.balance incidental impurities may be present, e.g. up to 0.05% P, up to 0.03% S and Al and N.  After heating to 2000 DEG  F. for two hours and air-cooling, the steel may be cold expanded 25-30% and aged between 500 DEG  and 650 DEG  F.
Patent GB-342054-A (GB)
Title: Improvements in and relating to the driving of picture-assembling devices of television and picture-receiving apparatus
IPC: H04N5/04
Filed: 1929-11-29
Abstract: 342,054. Copying telegraphy. BINDER, V., 26, Bartfai-u, Budapest. Nov. 29, 1929, No. 36675. Convention date, Nov. 29. 1928. [Class 40 (iii).] Picture - scanning devices or television and picture receiving apparatus are driven by synchronous motors of small output, e.g. phonic wheels, driven directly by transmitted alternating currents having a frequency equal to that of the picture or line changes. These currents are produced by the transmitting scanning device in scanning a prominent dark or bright picture edge thus producing impulses of greater amplitude than the normal picture currents. When the alternating currents have a frequency equal to that of the linechanges the number of poles of the rotor of the synchronous motor is equal to the number of picture lines transmitted per revolution of the motor and when a Nipkow disc is employed the number of said poles is equal to the number of holes in the Nipkow disc.