baber/WOPTO huggingface dataset:
Patent GB-332615-A (GB)
Title: Improvements in or relating to apparatus for recording on or reproducing from sound films
IPC: G11B7/00
Filed: 1929-04-25
Abstract: 332,615. Prisner, S., and Wender, E. April 25, 1929. Optical apparatus and records; soundreproducing apparatus with kinematographs. -Relates to apparatus for recording on, or reproducing from, a sound film in which the mean path of the sound trace is in the form of a plurality of lines running substantially parallel to one another and approximately transverse to the length of the film. According to the invention, the apparatus comprises a rotary drum 4, having a substantially helical slot 5, a screen 8 located within the drum and having a slit 9 substantially equal in length to the length of the drum and parallel to the axis thereof, and means for projecting light from within the drum. The emergent light proceeds through the area at which the drum slot 5 crosses the screen slit 9 and is caused to sweep from end to end of the drum in a continuous succession of unidirectional movements. The drum is provided with a reflector system 6 co-operating with end lamps and reflectors. The drum 4 is .rotated through a shaft 10 and gearing 11, 11<a> from a drum 3 on to which the sound film 1 is wound from a drum 2. During reproduction, the light from the slot 5 passes through a lens system 12, the film 1, a lens system 13, and a transverse slit 15 in a screen 14 as shown in Fig. 2, and then falls upon a mirror 16 whence it is reflected upon a photoelectric cell 17 feeding an amplifier 18, and loudspeaker 19. During recording, a light valve 21, 21<a>, for example an acoustically-vibrated graded light filter, is energized from an amplifier 22 as shown in Fig. 4, and the light beam passes through a transverse slit 27 and lens 25. If desired, instead of the light relay 21, 21a, the necessary modulation of light may be obtained by varying the intensity of the source or sources of light within the drum 4 A kinematograph projector may be geared with the above apparatus when used for reproduction.
Patent GB-611379-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/28
Filed: 1946-04-30
Abstract: 611,379. Cathode-ray tubes. PHILIPS LAMPS, Ltd. April 30, 1946, No. 12973. Convention date, March 18, 1942. [Class 39 (i)] In an electric discharge tube the rod-shaped carrying members for electrodes are provided with longitudinal cavities containing a hardened filling material in which supports for electrodes or other parts are set. The carrying members may be of quartz, hard glass, ceramic material or metal; the filling may be of magnesium oxide mixed with water-glass, or glass or enamel. Fig. 5 shows a section of the electrode system of a two-beam cathode-ray tube. The carrying rods 1, 2, 3, 4 have longitudinal grooves 28 filled with a paste made of powdered glass mixed with water or alcohol; the supports 7 for the electrodes are set in this paste which is then heated so that it hardens. The heating may be by wires mounted on the jig holding the parts in this temporary position, and running through grooves or channels in the support rods. An arrangement of this kind is shown in Fig. 6, in which the heater wires 19 are stretched between spring-actuated holders 15, 16 and pass along slots 27 in the support rods 26.
Patent GB-718835-A (GB)
Title: Improvements relating to heat treatment of strip metal
Inventor: HOWARD JOHN CHRISTIE
IPC: C21D9/60
Filed: 1952-05-22
Abstract: 718,835. Annealing strip. ELECTRIC FURNACE CO., Ltd. May 11, 1953 [May 22, 1952], No. 13018/52. Class 72 Strip metal is continuously heat treated by being passed into and out of a chamber containing a controlled atmosphere through one or more liquid gas tight traps, heated in the chamber and the liquid caused to transfer heat from the outgoing to the incoming strip. As shown, the strip 10 passes under a pulley 11 in a liquid bath 15 into an inverted U-shaped chamber 12 and under a pulley 11 in a second liquid bath 16. The chamber has an opening 17 by which an inert or other atmosphere may be introduced. The liquid baths 15, 16 may be of mercury or lead and may be connected by tubes 18, one of which may be fitted with a pump to assist circulation Fig. 2 (not shown). The liquid in the bath 16, heated by the hot strip, flows into the bath 15 and preheats the incoming strip. A single bath into which both ends of the chamber dip may be used Fig. 3 (not shown). The strip may be heated by induction.
Patent GB-1580843-A (GB)
Title: Filter boards
IPC: B01D39/18
Filed: 1977-03-29
Abstract: To achieve complete filtering in a single operation, the filtering cardboard comprises two or more layers (1,3,7) with different porosity characteristics. The said layers are arranged in an order such that in the press the liquid product to be filtered passes, as shown by the arrow (f1), through layers (1,3,7) of decreasing porosity that retain increasingly smaller particles. A final layer (5) is an anti-fluff layer. The layers are joined around the perimeter by a substance that is impregnated (at C1) and distributed superficially (at C2). <IMAGE>
Patent GB-820187-A (GB)
Title: Oxide-coated cathode and method of producing same
IPC: H01J9/04
Filed: 1957-04-24
Abstract: 820,187. Cathode materials and processing. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R. T. April 24, 1957 [April 26, 1956], No. 13098/57. Class 39(1). In the manufacture of an oxide-coated cathode, a mixture of alkaline-earth metal carbonates is impregnated with a solution of a substance capable of forming a basic alkalineearth metal compound when heated with an alkaline-earth metal oxide. The basic compounds may be zirconates, titanates, aluminates, silicates, or berylliates. Two examples are given. (1) A double or triple solid solution of barium, strontium, or calcium carbonates is soaked with zirconium nitrate solution, dried, and then heated in two stages, to not more than 600‹C., and then to 1300‹-1400‹C. (2) A similar method in which the impregnating substance is a colloidal solution of zirconium hydroxide. It is stated that this method of manufacture is effective in reducing the evaporation of barium oxide.
Patent GB-549262-A (GB)
Title: Improvements relating to filling and closure devices for vehicle liquid-fuel tanks
IPC: B60K15/04
Filed: 1941-10-11
Abstract: 549,262. Filling and closure devices for liquidfuel tanks. WESTWOOD RIM & PATENTS, Ltd., and WESTWOOD, S. C. Oct. 11, 1941, No. 13129. [Classes 21 and 125 (iii)] A filling and closure device for a vehicle liquid-fuel tank comprises a filling neck a with a removable cap b and a shallow chamber c surrounding the end of the neck and extending beyond the upper side of the cap b, the chamber being closed by a flat cap d having a rubber or other sealing washer e adapted to bear on the upper edge of the chamber and an annular channel j being provided around the chamber to trap any water gaining access to the space between the underside of the cap d and the upper edge of the chamber. As shown, the chamber has an external flange h formed integrally therewith and the cap d co-operates with a ring i secured within the upper end of the chamber or a separate ring of inverted L-shaped section secured to the outside of the chamber and the channel j is formed between the two parts and has perforations k for the escape of water collecting therein. The washer e is let into a recess in the cap d which is secured by one or more resilient members f attached to the underside thereof and adapted to engage, when the cap is rotated, with projections g on the inner side of the chamber or a part attached thereto. In a modification, the channel is formed between the chamber and a second chamber surrounding it and provided with a water outlet; the inner chamber may be provided with a vent.
Patent GB-131623-A (GB)
IPC: F22B17/10
Abstract: 131,623. Morison, D. B. May 23, 1918. Water-tube boilers; headers.-The sides of each header 2 are so curved that the header has the form of a number of alined and partially merged cylindrical drums, nests of water-tubes 6 are connected to each drum section, and manholes 7 are fitted in the headers opposite each nest. In theboiler shown, the vertical headers are connected to the transverse steam drum 1 by water-circulation tubes 3, 4 and by steam tubes 5.
Patent GB-417958-A (GB)
Title: Improved process and apparatus for recording electrical impulses
IPC: H04N1/23
Filed: 1933-05-05
Abstract: 417,958. Copying telegraphy. KORESKA, W., 21, Stadlergasse, Vienna. May 5, 1933, Nos. 13167, 13168 (Convention dates, May 7, 1932), 13169, 13170, and 13171 (Convention dates, Jan. 3, 1933). [Classes 40 (iii) and 40 (v).] In a recorder for copying-telegraphy, copying documents or producing stencils, a modulated spark gap 16, 2 is bridged by a record sheet 5, and the analysis is so fine that the discoloured parts of adjacent punctures appear continuous. The puncture resistance of the sheet is made less than that of the surrounding air by impregnating specially sized paper with an electrolyte, such as sodium, magnesium or calcium chloride, or sodium lactate, or incorporating good conductors in the paper, for example lamp black or graphite powder, or powdered aluminium or copper. Illumination of a photoelectric cell 7 by a light part of the document 4 to be transmitted increases the photo-electric current through a coupling resistance 10 in the grid circuit an amplifier 8, and thus increases the anode current through a resistance 11 coupling the anode circuit to an amplifier 9. A low-frequency is also impressed on the grid of the amplifier 9 by a transformer 12, and the grid-bias is so adjusted that the valve 9 amplifies the alternating-current only when the cell 7 is darkened. The current is supplied to the spark gap through further amplifiers 13, 14. To prevent interference in the grid circuit of the valve 8 due to the spark or other causes, the connections from the cell are reversed and the coupling resistance 11 connected between the anode of the valve 8 and the grid of the valve 9, so that the anode current of the valve'8 also decreases on illumination of the cell, Fig. 2 (not shown). After-effects from dark image elements are eliminated by an auxiliary chopped beam of light 23, which periodically reduces the resistance of the cell. The electrode 16 is a needle with an end of less than 0'2 mm. diameter or a wire in a sleeve and made of stainless steel or tungsten. The Specification as open to inspection under Sect. 91 comprises also, when the analysis is so fine that the punctured holes almost overlap, subdividing the dark parts by rotating a white apertured disc 26 in front of the transmitting- drum 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-709161-A (GB)
Title: Improvements in and relating to fluid sealed joint connections for rigid tubes
IPC: F16L27/067
Filed: 1952-05-23
Abstract: 709,161. Pipe joints. AEROQUIP CORPORATION. May 23, 1952 [July 16, 1951], No. 13170/52. Class 99 (1). A flexible joint comprises a sealing sleeve 14 bridging the gap between the pipes 10, 12, a housing 18 for the sleeve, and a collar 16 adapted to be clamped on each pipe, and having a spherical surface 50 engaging a similar surface within the housing. The collars have a number of longitudinal slots 38, and internal, circumferential, knife-edged ribs 42, the collars being contracted to grip the pipes by band-clips 46. The housing 18 comprises semicylindrical parts 48 held together by a surrounding sleeve 20 within which they are retained by a wire fastening 52. Alternatively the housing may comprise hinged semicylindrical portions detachably secured at their free edges, or it may comprise interengaging sleeve members secured together by a bayonet-type fastening. The sealing sleeve may be of channel section having inturned flexible lips 24. In a modification sealing rings 66, Fig. VII, of circular section are located in channel section metal rings 68 bonded to a plain sealing sleeve 70. The gripping device may comprise, instead of the ribs 42, a separate wire ring projecting from a groove in the collar. In another form ribs on the band clip project through slots in the collar to engage the pipe. In connecting a pipe to a fitting one end of the housing engages a spherical surface on the fitting oi-the housing may screw on to the fitting.
Patent GB-234490-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K17/40
Filed: 1925-05-20
Abstract: 234,490. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). May 20, 1924, [Convention date]. Alternating-current induction machines.-In a cascade set comprising a three-phase motor V and a continuous-current motor H electrically coupled through a rotary converter U, the rotor of the induction motor is in six-phase open connection and the resistance of one phase does not exceed four times the armature resistance of the converter so that passing through synchronism is facilitated. In the example shown, the main motor and the continuous-current motor are mechanically coupled. Speed variation above and below synchronism is obtained by varying the excitation of the continuous-current motor bv means of the rheostat Rand change-over switch S. In a modification, the continuous-current motor may be coupled with a synchronous or asynchronous three-phase generator connected to the mains suppling the main motor. According to the Specification as open to inspection under Sect. 91 (3) (a), the resistance of a rotor phase of the main motor does not exceed 0.8 times in the case of a star-connection and 2.4 times in the case of a delta connection the armature resistance of the converter. This subjectmatter does not' appear in the Specification as accepted.
Patent GB-243617-A (GB)
Title: Agricultural machine or tractor
IPC: A01B3/74
Filed: 1925-05-20
Abstract: 243,617. O'Hara, J. S. May 20, 1925. Power cultivation.-An agricultural machine and tractor with separate motors driving the propelling wheels is provided with means anchored in the ground and connected to and operated by the tractor whereby the motors are so controlled. that the tractor is driven along a predetermined path and automatically traverses the whole of a field. In the form shown the tractor has two propelling wheels 2 each driven by an electric motor 4 and a castor wheel (not shown). The motors 4 are controlled through a rheostat 10 having an arm 9 connected to an electric cable 16 the other end of which is fixed to a post 15. The arm 9 is normally held by a spring 11 in a central position in which the motors are driven equally and is also connected to a sliding rod 12 carrying a buffer 14. A spring reel 21 on the cable 16 takes up the slack. When the motors are started the tractor at first tends to travel in a straight line, but the pull of the cable 16 moves the arm 9 and causes one motor to be driven faster than the other so that the tractor moves in a curved or spiral path. At fences 25, Fig. 6, or other barriers the buffer 14 is pushed in and the outer motor receives a still greater proportion of the power so that the tractor deviates from the spiral path to clear the fence. At corners a wire or other barrier 28 may be erected to act on the buffer 14. Other motors than electric may be employed, the control, however, being the same.
Patent GB-1039075-A (GB)
Title: Position-control system with impulse feedback
IPC: G05D3/14
Filed: 1965-03-29
Abstract: 1,039,075. Automatic pressure control. LEEDS &NORTHRUP CO. March 29,1965 [April 27, 1964], No. 13265/65. Heading G3R. [Also in Division H2] Furnace-pressure is maintained at a desired value by damper 11 adjusted by motor 15, resistor 17 providing a positional feedback signal to controller 14. Another input for the controller is provided by pressure-responsive transducer 18 supplying current to resistors 19A, 19B, an opposing reference current being supplied to resistor 19B from resistor 20, and source 21A. A rate circuit 25, 26 is provided, so that a signal representing the sense, magnitude, and rate of change of the pressure-deviation is applied to amplifier 30 during one half of each of the successive cycles of vibrator 31. During the other half-cycles, the amplifier receives the feedback signal from the resistor 17, the selected fraction of the voltage across resistor 32 being applied to reset network 34, 35. The input to the amplifier 30 is an A.C. signal whose phase depends upon the sense of deviation and whose magnitude is related to the pressure-deviation and the change in damper-position required to restore the pressure to a set value. The output of stage 30F is applied to the phase discriminator 40 for energizing directional relays 41R, 41L, controlling solid-state switches 44, 45 and 48, 49, in circuit with the motor. A gain-control network for amplifier 30 comprises capacitor 66 connected across resistors 64, 65, associated with transistor 66, the capacitor having two separate charging circuits respectively including normallyopen contacts of the relays 41R, 41L. When the capacitor 56 is charged, the gain may be reduced until the directional relay drops out, whereby the capacitor is discharged through resistor 70 for re-operation of the directional relay to initiate another charge-discharge cycle f the capacitor. The motor 15 is thus pulsed, the ratio of energized to de-energized time being an inverse function of the displacement of element 11 from its new balance point. The extent to which the gain of the amplifier 30 can be reduced is preset by diode 71 having a back-biasing circuit comprising resistor 72, transistor 73, and emitter-resistor 74. When the input signal to amplifier 30 is sufficient to maintain continued energization of the selected directional relay at the reduced gain limit set by diode 71, the motor runs at maximum speed. The motor speed decreases rapidly as the damper approaches its balance position, and the motor eventually moves in small discrete steps.
Patent GB-132681-A (GB)
IPC: B60M1/20
Abstract: 132,681. Whittall, E. H., and Rees, B. J. Dec. 6, 1918. Suspending.-Supporting-means for the overhead conductors of electric tramways &c. comprise a two-part ear b holding the conductor a, a pair of linlis d, d<1> pivoted to the ear and to a pin or bolt f passing through a cylindrical insulator g having a groove to receive two semi-circular clamping-members h, and one or more rods k surrounded by loosely-fitting sleeves l and connected to strain insulators m. The links d, d' normally lie at an angle of about 30 degrees forward to allow of flexible movement of the wire.
Patent GB-640262-A (GB)
Title: Improvements relating to radar testing equipment
IPC: G01R27/26
Filed: 1947-05-16
Abstract: 640,262. Testing apparatus for radiolocation systems. DODDS, J. M., MILLER, C. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 16, 1947, No. 13277. [Class 40 (vii)] A device for testing radar equipment comprises a length of wave-guide closed at one end and having the opposite end connected to an electromagnetic horn or equivalent elementary aerial arrangement, the length of the waveguide being such that the applied pulse length is less than the time taken for the pulse to travel along the device and back. It is stated that the device is not frequency sensitive within very wide limits. For a pulse length of <SP>1</SP>/ 10  Á sec. a wave-guide length of 60 yards is adequate and this length may be coiled or bent in some way not introducing appreciable reflection. A variable attenuator may be introduced into the guide, its setting to produce a standard signal/noise ratio being a measure of the radar performance. Alternatively an iris or other reflecting reactance may be used to produce exponentially decaying multiple echoes, the number of echoes that can be resolved being a measure of the performance. To reduce the length of the guide an arrangement of stubs or a corrugated guide may be used having an equivalent delay time. The test device may be coupled direct to the radar aerial feed to test the efficiency of the radar set apart from its aerial.
Patent GB-374224-A (GB)
Title: Imitation fuel for electric fires and radiators
IPC: F24C3/00
Filed: 1931-05-05
Abstract: 374,224. Imitation fires. BERRY, H. H., 85, Newman Street, London. May 5, 1931, No. 13290. [Class 126.] Imitation fuel for electric imitation fires is made from a pliant sheet of metal bent up into hollow form to represent a log or other piece of fuel, the pliancy of the material allowing the same sheet to be bent to simulate fuel pieces of various shapes and sizes. Fig. 3 shows a sheet which is first pressed or rolled, and if desired coloured, to simulate the exterior surface of a log, and is then bent to the required diameter, with the edges either more or less spaced apart, as shown, or overlapping. Lugs 4 may be provided for holding lamps within the log, and slits may be provided in the sheet for the passage of light. The interior surface may be bright to serve as a reflector. Lugs 8 may be provided to render the log stable. A number of the logs may be connected by welding or bolting to form a unit structure representing a fuel bed. Instead of, or in addition to, the lugs 4, apertures may be provided in the sheet for attaching lamps. The ends of the logs may be filled with plugs of wood, or imitating wood. The sheet may be of wire gauze, Fig. 9 showing a piece of this material bent to represent a lump of coal, parts 17a being left more or less translucent and parts 19 rendered opaque with varnish, paint, or other substance.
Patent GB-132971-A (GB)
IPC: F01L13/00
Abstract: 132,971. Lambert, J. Graham-, (Lambert, E. A., and Adie, S. G. Wenman-). Feb. 1. 1919. Starting; reversing. - A distributing-valve for compressed air is of the kind comprising a fixed outer member 2, a rotatable inner member 3, and an intermediate member 4 capable of limited angular adjustment to control the supply of air to the cylinder for starting a n d reversing. The member 4 is moved axially to cut off the supply of air during its angular movement. In the form shown, the member 4 is connected to a piston 5<a> adapted to cut off the air supply to the valve port 2<a>, and carries rollers 16 moving over a cam track 15. The inner member 3 is capable of slight endlong movement on an extension of the rotary shaft 6 and is held in contact with the member 4 by springs 9. The member 4 may be held in contact with the outer member by the action of the compressed-air supply on the piston 5<a>. The member 4 has inlet and outlet ports 4<a>, 4<b>, which are in communication with the extended supply and delivery ports 2<a>, 2<b> in both extreme positions of the member 4, the two positions of the ports 4<b> being shown in full and broken lines in Fig. 3. The inner member has a peripheral groove 3<b> in communication with the port 4<a> and with a passage 3<d> leading to a segmental port 3<c>, which is open periodically to the outlet ports 4<b>, 2<b> when the inner member 3 is rotated, the time of opening depending on the adjustment of the member 4.
Patent GB-311275-A (GB)
Title: Improvements in or relating to nut locks
IPC: F16B37/02
Filed: 1929-04-29
Abstract: 311,275. Aktieselskapet Palmutteren. May 8, 1928, [Convention date]. Nuts.-A lock nut 3 formed from thin plate of the type having inwardly projecting resilient tongues to engage the threads of the bolts, has the inner edges 4a of these tongues bevelled to conform to the thread section. These may be made by two circular concentric dies, the outer one first forming the dished section, and the inner one then pressing the bevelled ends on the tongues.
Patent GB-560933-A (GB)
Title: Improvements in securing the cooling of air passing into cupboards and other food receptacles
IPC: F24F6/04
Filed: 1942-09-22
Abstract: 560,933. Moistening air: INNES, R. J., and WHATTON, E. H. Sept. 22, 1942, No. 13309. Drawings to Specification. [Class 55 (ii)] A wetted air-cooling screen suspended from a liquid container and arranged in front of a cupboard has a container at the bottom receiving surplus liquid from the screen and of smaller size than the top container to permit packing with the screen into the top container.