baber/WOPTO huggingface dataset:
Patent GB-867513-A (GB)
Title: Voltage biasing of magnetic amplifiers
Inventor: TORREY ROBERT DUTILH
IPC: H03K17/80
Filed: 1957-05-21
Abstract: 867,513. Magnetic amplifiers. SPERRY RAND CORPORATION. May 21, 1957, No. 16049/57. Class 40 (9). In an amplifier comprising a core 10 with a rectangular hysteresis characteristic which is magnetized alternately and in opposite senses by output and control pulses acting in winding 11 and 12, the demagnetizing effect of reverse or " ringback " current in the output winding due to its inductance 19 and distributed capacitance 17, and leakage resistance 18 and enhancement current of the circuit rectifiers, is neutralized by a corresponding reduction of the control current. As shown, the control pulses are normally effective only in the intervals between blocking pulses +E 2  from a source 16, and the reduction of control current is obtained by arranging the blocking pulse source to provide a constant bias voltage E 1 . This control of " ringback " current is in addition to a bias current in the output circuit supplied from +V 2  by way of a resistor R2. The output circuit includes a load resistor RL, and a biased rectifier circuit D3, R1, - V 1  which provides a short circuit path for outputs below a predetermined level. Specification 853,409 is referred to.
Patent GB-568826-A (GB)
Title: Improvements in or relating to systems of illumination
IPC: G01D11/28
Filed: 1943-09-30
Abstract: 568,826. Luminescent materials. WALKER, C. Sept. 30, 1943, No. 16075. [Class 39 (i)] A system of illumination comprises a source of light arranged to cast light of a first colour on to an object, the latter bearing fluorescent material which fluoresces under this light to emit light of a second colour, and the object is viewed through filter means transparent to the light of the second colour, but substantially opaque to light of the first colour. The system is applied to an instrument dial, the needle and graduations being covered with the fluorescent material and the cover glass forming the filter means. Fluorescent substances mentioned are fluorescein and isoquinoline red.
Patent GB-579164-A (GB)
Title: Improvements relating to the prevention of corrosion of magnesium and magnesium base alloy surfaces
IPC: C23C22/24
Filed: 1942-11-14
Abstract: 579,164. Coating metals. ESSEX AERO, Ltd., CROSS, R. J., and MAILLARD, E. F. Nov. 14, 1942, Nos. 16136/42 and 20897/43. [Class 82 (ii)] Corrosion of articles of magnesium or magnesium base alloys containing not more than 2¢ per cent of alloying constituent is prevented by treating them with a solution including in addition to a dilute nitric acid solution of an alkali metal chromate or dichromate, an alkali nitrate. If the solution contains potassium chromate or dichromate and sodium nitrate, the proportion of the latter is from a half to treble that of the former. In an example the solution is composed of 10 gms. of potassium dichromate, 30 gms. of sodium nitrate and 14 gms. of nitric acid per litre and the temperature of the solution may be 15‹ C. when the immersion period is twenty seconds. The temperature of the bath may however be 40-80‹ C. or 90-100‹ C. In another example the bath contains the same proportions of sodium nitrate and nitric acid and 30 gms. of potassium dichromate and the articles are immersed in the bath at a temperature of 40-80‹ C. for a period up to 5 minutes or may be boiled in the solution for 7-10 minutes, the treated article then being heated or stoved at 100-200‹ C. Articles so treated may be provided with a paint or coating material as described in Specification 579,165, [Group III]. Specification 287,450, [Class 82 (ii)], also is referred to.
Patent GB-1085103-A (GB)
Title: Apparatus for feeding particles in electrostatic printing
IPC: B41M1/12
Filed: 1966-04-13
Abstract: 1,085,103. Electrostatic printing. INTERCHEMICAL CORPORATION. April 13, 1966 [July 6, 1965], No. 16191/66. Heading B6C. In an electrostatic screen printing machine in which ink particles from a trough 16 are brushed through a stencil 10 into an electrostatic field existing between the stencil and a back plate 12 such that material 15 placed between the stencil and the back plate is imprinted with the required design, a gravure roller 17 is placed between the trough and the brush roller 21 the engraved portions of the roller 17 being arranged only in those areas directly associated with the apertures 11 in the screen. This tends to prevent the accumulation of particles in the non-printing areas of the screen.
Patent GB-145060-A (GB)
Title: Improvements in the manufacture and production of urea
IPC: C07C273/04
Filed: 1920-06-15
Abstract: Urea is prepared by forcing a mixture of carbon dioxide and ammonia into an autoclave and maintaining the melt formed for a sufficient time at the temperature required for the transformation of ammonium carbamate into urea.  The process is carried out in a continuous manner by forcing the gases into the autoclave and keeping the melt at 135 DEG  C. for two hours, then slowly releasing the reaction mass through a bottom valve to a column still in which it is distilled, urea solution running off from the bottom of the still, while unchanged ammonia and carbon dioxide pass off to a dephlegmator and thence back to the compressor.  More ammonia and carbon dioxide are supplied to the autoclave, or an aqueous solution of ammonium carbamate or carbonate is supplied to the top of the column still. The amount of moisture in the gases led back to the compressor may be controlled by keeping the temperature at the outlet of the p dephlegmator at, say, 60 DEG  C.  The expansion of the melt may be allowed to take place in two stages to save compression energy.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the production of urea from ammonia and carbon dioxide otherwise than by the continuous process described.  This subject-matter does not appear in the Specification as accepted.
Patent GB-529487-A (GB)
Title: Improvements in or relating to ladies' stockings
IPC: A41B11/12
Filed: 1939-06-02
Abstract: 529,487. Stockings. PHILIPS & CO., Ltd., J. & N., and WARREN, H. June 2, 1939, No. 16215. (Class 141] The welt part of a lady's stocking is knitted to produce a two-way stretchable fabric c with plain knit or comparatively inelastic sections d of the shape shown to constitute suspender grips. The interior of the welt is reinforced with plain knit fabric f.
Patent GB-145063-A (GB)
Title: Improvements in and connected with friction cone clutches or couplings
IPC: F16D13/26
Filed: 1920-06-15
Abstract: 145,063. Daimler-Motoren-Ges. June 29, 1917, [Convention date]. No Patent granted (Scaling fee not paid). Clutches, friction and positive.-In cone friction clutches or combined cone friction and positive clutches for use with automobiles, ships, or air engines, cones c connected to a sleeve a secured to the driving-shaft are engaged by cones k, m sliding on but turning with the hub d<1> of a cone d, on which also slides a cone g, the cones d, g forming a pair engaging cones b on the driving-sleeve under the control of a spring n and of manually-controlled wedges i engaging rollers i<1> on collars h, h<1> connected to the cone hubs. Lugs d<3>, g<3> on the cones d, g engage the cones k, m to unclutch them after and clutch them before the cones d, g, a spring o effecting the clutching-action. The double-cone clutch b, d, g may be replaced by a positive clutch with peripheral teeth.
Patent GB-810843-A (GB)
Title: Improvements in and relating to ram-jet engines
IPC: F02K7/10
Filed: 1956-05-25
Abstract: 810,843. Generating combustion products under pressure. SUDAVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. May 25, 1956 [July 13, 1955], No. 16270/56. Class 51 (1). A supersonic ram jet unit has a combustion system comprising a number of primary or pilot combustion devices through which air flows at subsonic velocity and which are ignited by means of a centrally-disposed ignition device adapted to be operative at high speed, and a main combustion assembly disposed in the spaces between the pilot combustion devices. The combustion system 32, 34 is shown in Fig. 2, mounted at the downstream end of the inner fairing 35 of the ram jet unit 33. The combustion system comprises a number of radially-disposed pilot combustion chambers A each being in the form of a subsonic ram jet unit, and the main fuel is injected through injectors 16, 19 disposed in the sector-shaped passages C between the pilot chambers A. An ignition chamber 10 is disposed in the space radially within the pilot chambers A and ignition is started by means of a chemical igniter 8, fuel being injected into the chamber 10 through an injector 9. A flame guard 11 having perforations 12 is disposed around the injector 9, and flames from the chamber 10 pass through tubes 13 into the pilot combustion chambers A, downstream of the flame stabilizing baffles 3 therein. Fuel is injected into the pilot chambers through perforated radial tubes 4 disposed in the diffuser portions 2 and upstream of the flame stabilizers 3. The pilot flames issue through the open downstream ends 26 of the pilot chambers where they ignite the mixture of fuel and air formed by the main fuel injectors 16, 19 disposed between adjacent pilot chambers. The pilot fuel injectors 4 are supplied from a manifold 6, the main injectors 16 from a manifold 14 and the main injectors 19 from a manifold 17, the manifolds 14, 17 also the flame tubes 13 being surrounded by heatlagging material 20. The injectors 16 are perforated radial tubes and the injectors 19 are Y-shaped, only the two arms being perforated; a fairing 22 is disposed around the stem portion. Arcuate flame stabilizers 27, 28 of V-section are disposed between the downstream ends of the adjacent pilot chambers A. An alternative form of main fuel injector is shown comprising a T-shaped injector associated with an injector of trapezium form.
Patent GB-235730-A (GB)
Title: Improvements in the mounting of the bodies of rail vehicles
IPC: B61F5/32
Filed: 1924-07-07
Abstract: 235,730. Ireland, W. E. July 7, 1924. Dashpots ; buffers.-In a rail vehicle having a. body supported on an undertruck so as to be capable of lateral movement relatively to it and provided with one or more levers pivoted on the truck and engaging the body (or vice versa) so as to be rocked by such relative movement, resilient devices with or without dash-pots, act substantially vertically to resist rocking of the levers from a normal position. A lever 5 is pivoted to a casting 6 fixed to the truck, the upper end of the lever working between stops 7 on the body, and oppositely projecting arms on the lower end of the lever contact with rods 8 of pistons 9 working in cylinders 10 against helical springs 11 and the contained air, the escape of which is regulated by a valve 12. Single bell-crank levers may be used; the resilient devices may also be spiral or other springs instead of or in addition to the helical springs and air cushion, or rubber buffers may be employed.
Patent GB-1020944-A (GB)
Title: Improvements in or relating to fuel cells
IPC: H01M8/00
Filed: 1964-04-20
Abstract: 1,020,944. Fuel cells. LEESONA CORPORATION. April 20, 1964 [April 30, 1963; March 24, 1964], No. 16339/64. Heading H1B. A fuel cell employing a non-porous hydrogen diffusion anode has in operable association therewith, a reform or cracking catalyst that converts a hydrogen containing fuel into hydrogen and by-products, the hydrogen passing through the anode. A palladium alloy with silver or gold is preferred as the anode.
Patent GB-688892-A (GB)
Title: Improvements in writing instruments and reservoirs therefor
Inventor: OLIVIER JACQUES RAYMOND
IPC: B43K7/02
Filed: 1946-05-30
Abstract: 688,892. Reservoir pens. COMPANIA URUGUAYA DE FOMENTO INDUSTRIAL SOC. ANON. Dec. 15, 1947. [May 30, 1946] No. 16425/46. Class 146 (iii). In a ball-point pen, an ink reservoir is provided containing fibrous or porous material 7 extending within the reservoir 6 from the end with which the feed. duct 4<SP>1</SP> to the ball 2 communicates, the voids of the material being filled with a viscous ink which does not leak from the body of the material but which can be withdrawn through the duct 4<SP>1</SP> in the act of writing. As shown, the. writing extremity 1 is attached to an adaptor 5 connected to one end of a tubular reservoir 6. The other end of the reservoir may be open, or closed by a plug 9. An air vent may be provided by a hole 10 in the reservoir or by small bore ducts in the plug which also prevent ink seepage. The material 7 is placed in the reservoir and charged with ink through the adaptor up to the line 8. A filter 11 serves the dual purpose of preventing material 7 entering the ducts 4, 4<SP>1</SP> in the adaptor and of intercepting air or vapour bubbles which might cause an air-lock. The device may be mounted in an outer casing by means of the screw-thread 12. A suitable ink is described in Specification 621,847. Specifications 571,698, 573,747, 629,226, 650,754 and 688,891 also are referred to. Reference has been directed by the Comptroller to Specification, 615,548.
Patent GB-530165-A (GB)
Title: Improvements in tubulous boilers
IPC: F22B37/14
Filed: 1939-06-05
Abstract: 530,165. Water.tube steam boilers. BABCOCK & WILCOX, Ltd. June 5, 1939, No. 16449. Convention date, June 22, 1938. [Class 123 (ii)] In a boiler having a convection heat pass 190 containing a superheater 20 and a radiant heat pass 12 between the convection heat pass and the furnace chamber 10, the pass 12 which is arranged alongside the pass 190, is divided by a number of longitudinal tubular walls 14 forming additional radiant heat surfaces, and the pass 190 is arranged above the furnace chamber. The tubes lining the furnace chamber are covered with refractory material whereas the walls of the pass 12 present bare surfaces to the gases. The headers 18 at the upper ends of the tube walls 14 and of the side walls of the pass 12 are suspended by spring supports 116 from beams 120. The floor of the pass 12 is inclined downwards towards the bottom of the furnace chamber. The upper headers of the tubes in the pass 12 and the tubes 38, forming the separating wall of the passes are connected to a steam and water drum 44, and lower headers 148, 144 are connected to the drum by tubes 140 forming the outer wall of the pass 190. An economizer 182 is arranged. partly below and partly in a ,controlled gas byepass at the side of the superheater. The furnace gases flow from the bottom of the pass 190 upwards through an air heater 251.
Patent GB-552553-A (GB)
Title: Improvements in or relating to containers in flat form capable of being erected into hollow self-supporting formation
IPC: B65D5/18
Filed: 1940-11-18
Abstract: 552,553. Cartons. WATERS, H. F. Nov. 18, 1940, No. 16633. [Classes 18 and 66] A paper or like carton or container in flat form capable of being erected into hollow self-supporting formations of cylindrical, frusto-conical or rectangular shape, is made from a blank folded upon itself along a fold line and having the opposite edges of its opposed faces secured together to provide an open mouth with intersecting score lines on the face spaced from the fold lines and symmetrically disposed with respect thereto and to the opposite edges and diagonal score lines extending from the intersections of the symmetrically disposed score lines to the fold lines so that the carton can be opened out on the score lines to form a hollow body with an integral bottom. The cylindrical carton, Fig. 1, is formed from a blank, Fig. 2, which is scored as shown and folded in the line 11 so that the adhesive panels 14 between the longitudinal edge 13 and score 12 abut and become secured together. The carton in flat form with an open mouth 15 can then be opened out, the symmetrically disposed intersecting score lines 17, 18, 19 defining the circular base of the carton and the diagonal score lines 22, 23 and additional score lines 20, 21, forming ears 25 which become folded upon the base, the curvature and spacing of the score lines 18 and 19 being such that the bottom assumes an arched formation while the intersections of these lines define feet symmetrically disposed around the circumference of the base of the carton; the score lines 26, 27 are preferably provided to assist the folding of the parts.
Patent GB-947362-A (GB)
Title: Devices for lifting bales of hay or straw
Inventor: WILLIAMS IAN JOSEPH
IPC: A01D87/12
Filed: 1961-05-08
Abstract: 947,362. Bale-gripping attachments for tractors. TROJAN Ltd., and W. J. GALE. June 21, 1962 [May 8, 1961], No. 16693/61. Addition to 943,336. Heading B8H. The device for use in lifting a row of bales as described in the parent Specification is modified in that the rods 62 supporting prongs 66 are each provided with an arm 150 which is bent to form a forwardly projecting spike 151. In operation, the spikes 151 extend into the bales as the tines move into the row of bales and as the tines are lifted they initially move upwardly relative to the bales thereby causing the arms 150 to turn downwardly so as to rotate the rods 62 and turn the prongs 66 into engagement with the bales. Return springs 155 are provided for raising the arms 150 and downward movement of the arms is limited by engagement with the bottom of the tine at 156. In modifications (not shown), the arms 150 are located intermediate the end of the tines. The arms 150 may each be replaced by one or more of the prongs 66 which are of greater length than the other prongs and are of blade-like form.
Patent GB-597904-A (GB)
Title: Facsimile scanning system
IPC: H04N1/16
Filed: 1945-07-02
Abstract: 597,904. Copying-telegraphy. FINCH, W. G. H. July 2, 1945, No. 16754. Convention date, Sept. 16, 1944. [Class 40 (iii)] [Also in Group XXXVI] In a facsimile telegraph receiver, electro-chemically sensitive paper (see Group XXXVI) is fed between a helical electrode wound on a scanning drum and a blade electrode urged into contact with the helix, paper - feeding mechanism being provided, driven by the scanning drum. A motor 26, Fig. 4, drives by means of gearing, mounted on a bracket 35 pivoted at 30, and a plate-clutch, a scanning drum 12 on which is helically wound one turn of wire 13, Fig. 1. The other end of the scanning drum is journalled in a similarly pivoted bracket 35. To thread the paper 10, thumbscrews 80 are loosened and pivoted arms 75 swung down out of slots in bracket extension pieces 55, allowing the scanning drum and associated gearing to be lifted up. Two drawrollers 70, 71 feed the paper forward and are driven by gearing from the scanning drnm. The blade electrode 11 is fitted into a slot 131, Figs. 5, 7, in its mounting 120, Fig. 6, and springs 125 keep it pressed toward the helical electrode, flanges 122, 130 co-operating to retain the blade 11 within its slot 131. Signalmodulated current passes through the recording paper 10 to colour it at the point where the blade 11, paper 10 and helix 13 are all in contact, this point of contact traversing the paper as the scanning drum 12 rotates. Stop-start synchronism of the receiving and transmitting drmns may be employed. In a modification, to allow for spacing between scanning lines, wire is wrapped round the receiver scanning drum for 340 to 350 degrees only and the drum itself made of insulating material.
Patent GB-631943-A (GB)
Title: Speedometer
IPC: G01P3/06
Filed: 1946-06-03
Abstract: 631,943. Speedometers. HASLER SOC. ANON. June 3, 1946, No. 16830. Convention date, June 2, 1945. [Class 106 (iii)] A speedometer having friction gearing which comprises a friction disc element and a co-operating friction roller mounted on a rotating shaft element, one of these elements being driven at constant speed, is characterized by a differential gearing in the drive to the other element from the member, the speed of which is to be measured, whereby the other element is caused to rotate even when the member is stationary. In the described embodiment, a friction disc 8 is driven at constant speed from a shaft 1 by clockwork or the like, a gear 2 on the constant-speed shaft 1 also driving one sunwheel 3 of a differential gear, the other sunwheel 5 of which is driven by the member, the speed of which is to be measured through a gear 12. The carrier of the planet-wheel 4 drives a threaded shaft 6 carrying an internallythreaded wheel 7 which runs on the surface of the friction disc 8. With this arrangement the speed of the shaft 6 is proportional to the speed to be measured, imparted through the sun-wheel 5, plus the constant speed, imparted through the sun-wheel 3. As the wheel 7 adjusts its position radially with respect to the disc 8 until its speed is equal to that of the threaded shaft 6, its displacement is transmitted to an indicator 16 through a rack 13 and pinion 14. In another embodiment an additional threaded shaft, friction wheel and transmission rack are arranged diametrically opposite those of the first embodiment, the drive being communicated to the second threaded shaft through bevel gearing.
Patent GB-258942-A (GB)
Title: Improvements in directional aerial systems for radio transmission or reception
IPC: H01Q21/12
Filed: 1925-06-30
Abstract: 258,942. Franklin, C. S. June 30, 1925. Directive signalling; aerials; coupling oscillating and radiating circuits.-In a directional transmitting or receiving system comprising a line of separate aerials 1 - - 5 in which the current-phase in all the aerials is maintained uniform, the transmitter or receiving set is directly coupled at T1, T2 only to certain of the aerials such as 2 and 4, the remaining aerials such as 1, 3, and 5 being energized in correct current phase by re-radiation from those directly coupled. Preferably each aerial is spaced half a wave length apart from its neighbours, though slight variations in this distance may be compensated by adjustments in tuning. The aerials 2, 4 are of the type described in Specification 242,342, and consist of two or more sections S1, each one half wavelength long, connected together by coils A, B which serve to maintain correct phase of the currents in the upper and lower sections. The intermediate aerials 1, 3, 5 and also any reflecting aerials consist merely of a number of sections S2, each half a wavelength long. For reception, the re-radiated currents from the aerials 1, 3, 5 affect the signal currents induced in the aerials 2, 4 to a degree dependentupon the direction of the incoming wave.
Patent GB-581311-A (GB)
Title: Improvements in or relating to darts
IPC: F42B6/00
Filed: 1944-09-04
Abstract: 581,311. Darts for games. WRIGHT, W. Sept. 4, 1944, No. 16844. [Class 132 (iii)] [Also in Group XXII] Cartridge cases are converted into darts by drilling away the base at b and inserting a lead &c. plug e. The flight (not shown) is carried by a plug fitted into the neck end or this end may be closed to cruciform or other shape d for the attachment of the flight. The plug e may be grooved for securing by spinning in the flange h at j. In a modification only the percussion cap is drilled out and a plug is fitted into the resulting hole and anchored by metal or plaster &c. run into the interior of the cartridge. According to the Provisional Specification, the base may be formed to receive the flight and the point may then be carried by the bullet.