baber/WOPTO huggingface dataset:
Patent GB-584128-A (GB)
Title: Improvements in and relating to valve means for facilitating the inflation and deflation of pneumatic envelopes or bags
IPC: F16K15/02
Filed: 1943-06-02
Abstract: 584,128. Inflating valves. STRAUSSLER, N. June 2, 1943, No. 8866. [Class 135] A valve device for the inflation and deflation of tubular pneumatic envelopes or bags particularly to such envelopes which serve as 'pneumatic struts wheninflated, is secured in the open end of the envelope and has inlet 'and exhaust valves normally seated by resilient means, the inlet valve being opened by the supply of air or gas under pressure to inflate the envelope and the exhaust valve being opened by fluid pressure to permit escape of air from the envelope. The valve casing comprises a circular part a with a depending skirt b with beads c, d about which the end of the envelope is clamped. The exhaust valve i co-operate with a seat 3a at the bottom of a recess g and is guided by a stem passing through an aperture fin a boss e on the member a. The valve.is normally held to its seat by a spring 10 arranged between the boss and a piston 5 on the valve spindle, the piston being provided with an upstanding sleeve to limit the opening of the valve. Openings h, h<1> are provided to permit the escape of air when the valve is lifted by admitting fluid pressure through a conduit u to act on a piston 9 sliding in a bore t. Pressure is supplied to the conduit u by a remotely situated pedal-actuated pump. The inlet valve is loaded by a spring 11 and cooperates with a seat removably secured in a bore l in a projection on the plata a. The transverse bore o leading by a passage n to the inlet valve and the transverse bore u are open at both ends so that a number of valves may be connected in series for the simultaneous inflating or deflation of a number of envelopes. Specification 575,092, [Group XXXIII], is referred to.
Patent GB-1282406-A (GB)
Title: High polymer low viscosity latexes
Inventor: ARAKI YOSHIHIKO
IPC: C08F36/04
Filed: 1971-04-06
Abstract: 1282406 Emulsion polymerization NIPPON OIL CO Ltd 6 April 1971 8869/71 Heading C3P Conjugated dienes are polymerized, or copolymerized with a vinyl compound, by emulsion polymerization in the presence of (a) a fatty acid soap and/or a rosin soap, (b) a water-soluble alginate, and (c) a water-soluble magnesium salt. Examples describe the polymerization of butadiene, a 75/25 butadiene/styrene mixture and a 70/30 butadiene/n-butyl acrylate mixture in the presence of sodium rosinate, disporportionated sodium rosinate or sodium oleate as emulsifier; sodium or ammonium alginate; magnesium sulphate, chloride or nitrate; potassium persulphate; and n-dodecyl mercaptan. During the polymerization the temperature is increased in stages and further additions of potassium oleate and a "booster" mixture of modifier, initiator and emulsifier are made.
Patent GB-1165325-A (GB)
Title: Improvements in or relating to Spectrum Frequency Generators
Inventor: EVERS ALAN FREDERICK
IPC: H03L7/22
Filed: 1966-03-01
Abstract: 1,165,325. Frequency synthesizing circuits; automatic frequency control systems. PLESSEY CO. Ltd. 1 Feb., 1967 [1 March, 1966], No. 8888/66. Headings H3A and H3F. A digital frequency synthesizer, Fig. 3, comprises a number of stages 25 ... 28 appertaining to the respective digits, the stage 28 corresponding to the least significant digit including a slave oscillator 18, the frequency of which is variable in dependence upon the setting of a control means 22, and the other stages 25, 26, 27 including a slave oscillator 18, the frequency of which is variable independence on the setting of a control means 22 and also on the signal applied to it from the stage corresponding to the digit of next lowest significance. In each of the stages 25, 26, 27 the signal from the slave oscillator 18 and that from the preceding stage are mixed in mixers 19, and the mixer output is fed to the control means 22 via a bandpass filter 21. The synthesizer may be employed as an oscillator 15 in a receiver, Fig. 2. Incoming signals are fed to first and second mixers 1, 5 each associated with a respective local oscillator 3, 6. The output from the digital oscillator 15 and local oscillator 6 are fed to mixer 16 and the resulting output is then fed together with the output from local oscillator 3 to a further mixer 8. The output from mixer 8 is compared with the signal from a reference source 13 to provide coarse 11, and fine 12 control for oscillator 3.
Patent GB-1217668-A (GB)
Title: Recorder
Inventor: AMIS PETER WILLIAM
IPC: G11B25/06
Filed: 1969-02-19
Abstract: 1,217,668. Tape recorders. A. & M. FELL (MFG.) Ltd. 19 Feb., 1969, No. 8896/69. Heading G5R. A flight recorder comprises a curved, e.g. spherical, rigid enclosure 2, 3 containing in its central region a platform 5 having mounted on its opposite sides respectively two recording systems 13, 14 which are driven at different speeds by a single electric motor 10, mounted on the platform 5, through a drive transmission system 12 mounted inside the platform. The enclosure is formed by an inner steel shell 1, a layer of thermal insulation 6, and a titanium outer shell 4. One recording system 13 is used for data and may be of the type described in Specifications 1,217,667 and 1,217,669 while the second recording system 14 is used for speech.
Patent GB-995548-A (GB)
Title: Separating water and hydrocarbons from natural gas
IPC: B01J20/08
Filed: 1962-03-08
Abstract: 995,548. Separating water and hydrocarbons from natural gas. SOCONY MOBIL OIL CO. Inc. March 8, 1962 [March 8, 1961]. No. 8947/62. Heading B1L. Water, propane and heavier hydrocarbons are separated from a stream of natural gas by contacting with an inorganic oxide adsorbent having a porosity of 46-58% by volume and an average pore diameter of 15-40. Adsorbents specified are silica-magnesia, silicazirconia, silica-thoria, silica-titania, silica-iron oxide, alumina and natural and modified clays; details are given in connection with pure silica gel and a 97À7% silica-2À3% alumina adsorbent. The adsorption may take place at 20-175 F. and 300-2000 p.s.i.g. with a flow rate of 0À05- 10 f.p.s. The process is particularly useful when the water or propane and higher hydrocarbon concentration is at least 40% of its saturation concentration. The adsorption may be performed in 1-, 2- or 3-tower systems, an example of the latter being illustrated in Fig. 1.
Patent GB-668448-A (GB)
Title: Method of manufacturing incandescent mantles
IPC: F21H1/00
Filed: 1950-04-12
Abstract: 668,448. Incandescent mantles. ALADDIN INDUSTRIES, Inc. April 12, 1950 [April 22, 1949], No. 9029/50. Class 75(i) In making incandescent mantles the fibrous mantle material is impregnated with mantle fluid and glyoxal before burning off. A knitted rayon, cotton or silk stocking is impregnated with a solution containing .75 per cent by weight glyoxal in isopropyl alcohol or water, then dried and dipped into an aqueous mantle solution containing 14-28 per cent thorium and cerium nitrate. The material is shaped, then burned and finally stiffened with collodion solution. A fluid containing .15 to 1.2 per cent by weight glyoxal in mantle solution may be used so as to impregnate with both glyoxal and mantle solutioin at a single dipping. The glyoxal reduces the shrinkage that takes place in the burning process.
Patent GB-158851-A (GB)
IPC: D06M13/02
Filed: 1920-03-27
Abstract: 158,851. Soc. la Soie Artificielle de la Voulte. Feb. 11, 1920, [Convention date]. Gases, treating with.-Preservative substances are formed in the body of artificial silk or other fabrics, the strength of which is diminished by moisture by the interaction of appropriate gaseous reagents. For example, resins are formed by the action of ozonized air or formaldehyde upon threads that have been exposed to turpentine vapour or phenol vapour respectively under reduced pressure. Volatile organic acids, such as formic or acetic acid, may be used when their presence is required.
Patent GB-286900-A (GB)
Title: Improvements in spraying appliances
IPC: B05B7/08
Filed: 1927-04-02
Abstract: 286,900. Binks, M. J. W. April 2, 1927. Air-pressure sprayers. - In a sprayer of the kind in which a spray of liquid from a central jet is flattened by opposed jets of air, the three jets all being in the same plane, the air nozzle 18, Figs. 1, 3 and 4, has the major portion of its forward end formed wedge-shaped, the edge of the wedge being in the common plane of the jets. In a. liquid passage 3 formed in the body 1 is screwed a conical liquid nozzle 2, the contraction outlet 4<A> of which is controlled by a needle valve 6. The conical surface of the nozzle 2 forms a seating for the similarly-coned inner surface of an air nozzle 18, which is externally coned and held against the liquid nozzle by means of an internally-coned sleeve 8 held on the body 1 by a flanged collar 10 screwing on the body 1 and arranged to allow limited transverse movement of the air nozzle. The air nozzle is formed with a central opening 7<A> and auxiliary inclined jets 16 and a flattened part 20 about the central opening. The air nozzle and sleeve are wedge-shaped, the edge of the wedge being in the plane of the outlets 4<A>, 16. The air nozzle is shorter than the sleeve 8 to form an air chamber 12 fed by an air passage 13 and air is led to the annular outlet 7<A> by grooves 15 cut either in the air nozzle 18 or in the outside of the liquid nozzle 2. Grooves 15 lead to the air jets 16. A pin 21 prevents relative rotation of the nozzle 18 and sleeve 8. The construction is such that the various parts are easily aligned and that paint rebounding from against the side of the air jet is deflected by the wedge-shaped surfaces and blasts of air from the jets prevent rebounding liquid from reaching the flat portion 20.
Patent GB-937376-A (GB)
Title: Improvements in stocking welts
IPC: D04B9/54
Filed: 1960-03-15
Abstract: 937,376. Knitting. F. W. SELLORS Ltd., and R. V. SELLORS. March 6, 1961 [March 15, 1960], No. 9112/60. Class 74 (2). A narrow knitted margin or tip is folded over to produce double fabric and has its edge secured to the adjoining single fabric welt described in Specification 937,375. The narrow double fabric margin may be knitted on a circular machine equipped with a welt dial and furnished with pairs of right- and left-hand welt forming jacks disposed in line with alternate needles in the cylinder. Alternatively, desired spaced needles are rendered inoperative by passing below the stitch cam so that they do not take yarn and knit. The initial run-on courses are retained by the inoperative needles and after the marginal portion has been knitted the inoperative needles are restored into action.
Patent GB-714879-A (GB)
Title: Switch for electromagnetic waveguides
IPC: H01P1/12
Filed: 1952-04-09
Abstract: 714,879. Waveguide switches. BENDIX AVIATION CORPORATION. April 9, 1952 [April 23, 1951], No. 9122/52. Class 40 (8) Wave energy flow is terminated in one branch of a waveguide system and concurrently initiated in another, the flow being interrupted progressively from regions of low to high electrical intensity and being initiated progressively from regions of high to low electrical intensity in order to obtain approximately constant energy flow. As shown in Fig. 1 the invention is applied to rectangular waveguides 13, 14 alternately excited in the TE 10  mode from a common input waveguide 12. The branch guides 13, 14 are blocked alternately by the periphery of two rotating discs 17, 18 whose radial edges 21, 22 have centrally-placed sinusoidal notches dimentioned in accordance with the electric field intensity in the waveguide. The sum of the open transmission areas in the guides remains constant as one is closed and the other opened. The notches may alternatively be parabolic, V-shaped &c. In a modified arrangement (Fig. 4, not shown) a single disc situated between two parallel branch guides is used. Fig. 6 shows the application to a single waveguide 42 which is to be intermittently energized. The periphery of disc 41 is so shaped that switching is accomplished with a gradual change in the standing wave ratio. The invention may also be applied to modes other than the TE 10 <SP> </SP>modes the edges of the discs being shaped accordingly.
Patent GB-1170616-A (GB)
Title: Apparatus for Maintaining the Ratio between Two Variables at a Set Value which is controlled by a Further Variable (the "Control Variable")
Inventor: STANTON BENJIMAN DEWITT
IPC: G05D11/13
Filed: 1967-02-27
Abstract: 1,170,616. Automatic control. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Feb.27, 1967 [Feb.28, 1966], No.9142/67. Heading G3R. The ratio of two variables is controlled in dependence on a third by applying a voltage corresponding to the latter to charge a reservoir condenser which is differentially charged from an auxiliary condenser which is, in turn, charged through switching means operated at a frequency dependent on one of the two variables and from a voltage source dependent on the other of the two variables, the resultant reservoir condenser voltage controlling the ratio of the two variables. As described, the rates of flow of petrol and butane supplied to a mixing conduit are measured by turbine type meters which respectively operate switches 45, 46, Fig. 2, at corresponding frequencies so that condensers 40, 41 are correspondingly charged and then discharged in opposition into an integrating amplifier 50 associated with a reservoir feedback condenser 51. The output of amplifier 50, which represents deviation of the flow ratio from a predetermined value, restores the flow ratio to the predetermined value by controlling a valve (not shown) in the butane supply conduit. To maintain a desired volatility of the mixture an electrical signal 21 dependent on its vapour pressure is compared at 20 with a signal 22 representing desired vapour pressure so that any difference is applied through an integrating amplifier 23 and variable resistor 27 to the input of amplifier 50 to vary the flow ratio. The volatility control may be disengaged by closing a manually operated switch 25, and a switch 26, which is opened by a delayed relay 28, ensures smooth engagement of the volatility control when starting up. A meter 29 indicates the flow ratio when the output of amplifier 23 is zero. The Specification refers to control in dependence on viscosity or temperature instead of vapour pressure, to the replacement of one of the switched condensers with a reference source of current, and to the control of a plurality of mixture components.
Patent GB-1401948-A (GB)
Title: Process for preparing monosilane from polysilane
IPC: C07F7/18
Filed: 1974-02-28
Abstract: 1401948 Preparing hydrocarbonoxysilanes from polysilanes (ZAIDANHOJIN) SAGAMI CHEMICAL RESEARCH CENTER 28 Feb 1974 [28 Feb 1973 14 March 1973] 9160/74 Heading C3S A hydrocarbonoxy silane is prepared by reaction of a polysilane with an alcohol in the presence of a rhodium complex. The polysilane may be that obtained by hydrogenation of the residues from the production of Me 2 SiCl 2  by the Rochow process, these being chloro-, di-, tri- and -tetra-silanes. In the examples methanol, ethanol, isopropanal, phenol or benzyl alcohol is allowed to react with Me 4 H 2 Si 2 , Me 5 HSi 2 , Me 6 H 2 Si 3 , Me 3 Ph 3 H 2 Si 3  or Me 7 HSi 3 , in amount 2 moles of alcohol per disilane and 3 per trisilane to give hydrosilanes, except in Examples 2, 7, 12 and 17 where excess MeOH with Me 4 H 2 Si 2  and Me 6 H 2 Si 3  gives Me 2 Si(OMe) 2 ; the catalysts used are tris[Ph 3 P or Bu 3 P or (MeO) 3 P or Et 2 PNH 2 ] chlororhodium, bis- (hexadiene) or tetraethylene dichlorodirhodium, and dichlorodicarbonyldirhodium.
Patent GB-879418-A (GB)
Title: Improvements in or relating to vibrators
IPC: B22C19/06
Filed: 1958-03-21
Abstract: 879,418. Vibratory mechanisms. PETERSON, E. F. March 21, 1958 [April 25, 1957], No. 9164/58. Class 80 (4). In a vibrator wherein a ball 41 is rolled around a circular raceway by a tangential jet of air or other fluid, the raceway comprises a pair of spaced rings 42a, 42b, Fig. 2, each of which has its inner edge formed with two oppositelybevelled surfaces so that after one surface has become worn the two rings can be reversed or transposed to present the other surface of each ring. On each ring a flat annular surface lies between the two bevelled surfaces. The rings 42a, 42b are held against a rib 45 in a ring portion 11 by a pair of covers 31, 32 having conical bosses defining the centre of the ball raceway. Both the ball 41 and the rings 42a, 42b may be of tungsten carbide or other metal ceramic compound. To prevent their fracture during removal the raceway rings are made a loose fit in the ring 11, such loose fit allowing a migratory rotation of the rings, and also possibly of the covers 31, 32, under the influence of the ball 41. Different sizes or shapes of jet bushings 29, Fig. 1, may be inserted in the threaded air inlet boss 14 on the ring 11, or in a companion boss 15, the bushings being composed of a plastic such as nylon. In an alternative form the bushing, Fig. 4 (not shown), has a threaded counterbore to facilitate its extraction and may be of metal or plastic. Air may be discharged to atmosphere directly through the bosses 15 or 14, or through a hose 27 which may lead to atmosphere or to another vibrator. In a modification the covers 31, 32 seat against recesses in the ring 11 so that they do not press against the rings 42a, 42b, and the raceway surfaces on the rings have a concave curvature corresponding to the ball radius rather than a flat bevel. In a further modification, Fig. 5 (not shown), the vibrator has four air flow bosses, any one of which may be used as an inlet or outlet, those bosses not in use being closed by screw plugs.
Patent GB-913896-A (GB)
Title: Improvements in and relating to electrical impulse generators
IPC: F41A19/61
Filed: 1960-03-15
Abstract: 913,896. Reciprocating generators. RHEINMETALL G.m.b.H. March 15, 1960 [March 19, 1959], No. 9169/60. Class 35. In an impulse generator of the type in which the breaking of a magnetic circuit induces a pulse in a neighbouring coil, actuating energy is stored until it is great enough to overcome the magnetic attraction between the parts which are to separate. It is stated that this gives uniformity of pulses regardless of the actuating force. The magnetic circuit comprises annular permanent magnets 2, core parts 3, 4 and 9, and a movable member 7. A gap is introduced at 8 in the centre of coil 5 when the energy stored in a spring 11 by pressure on a cap 10 is sufficient to force down the part 13 which is attached to the movable member 7. A resilient stop 16 limits its travel. Upon release of the cap a return spring 18, on a guide-pin 19, restores the parts for subsequent operation. The storage spring 11 may be replaced by a compressible fluid. The cap 10 also acts as a magnetic shield.
Patent GB-1092201-A (GB)
Title: Inking mechanism for rotary printing machines
IPC: B41F31/36
Filed: 1965-03-03
Abstract: 1,092,201. Inking-apparatus. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. March 3, 1965 [March 14, 1964], No. 9178/65. Addition to 960,076. Heading B6C. In an inking train of the type described in Specification 960,076, the two alternatelyoperable intermediate distributer rollers 11 and 12 are interconnected by a double action pneumatic piston and cylinder device 26. The rollers 11 and 12 are mounted on levers 15, 16 which are pivoted in eccentric bushes 24, 25 respectively. The roller 11 may be accurately adjusted in position by a screw device. The movement of the device 26 is controlled by an electromagnetic valve, not shown, in dependence upon the axial position of the disengageable gear-wheels of the rollers 11, 12 in the train drive, Figs. 2-4 (not shown), each of said gear-wheels being adapted in its inoperative position to engage an electrical contact.
Patent GB-1461448-A (GB)
Title: Arc lamp apparatus
IPC: H01J61/98
Filed: 1974-03-01
Abstract: 1461448 Discharge lamps VARIAN ASSOCIATES 1 March 1974 [1 March 1973] 9284/74 Heading H1D [Also in Division H2] An arc lamp comprises a hermetically sealed envelope 1 filled with xenon gas, an anode 3, a cathode 2 and a movable electrode 4. Each of the electrodes 2-4 is made of metal, the cathode 2 being bonded to metal supports 17 which extend through a reflector 18 and enable connection of the cathode to a battery 40 via metal rings 14, 19. The anode 3 is mounted in a metal heat conducting member 20 and connected to the battery via a metal ring 21 which is bonded to a ceramic cylinder 12. The movable electrode 4 is attached to an iron core 25 and is biased away from the cathode by a spring 8. When a push button switch 48 is closed, a winding 9 is energized and attracts the iron core so that the electrode 4 engages the cathode 2. On release of the push button the electrode 4 is retracted and the energy stored in an inductor 45 starts an arc between the electrode and the cathode, the arc being transferred to the anode as the electrode withdraws. In a modification the electrode 4 is omitted and the anode is movable.
Patent GB-854578-A (GB)
Title: Improvements in high-frequency electrical energy interchange systems and electric discharge devices therefor
IPC: H01J25/42
Filed: 1959-03-18
Abstract: 854,578. Travelling-wave tubes. GENERAL ELECTRIC CO. March 18, 1959 [March 19, 1958], No. 9370/59. Class 39(1). A travelling-wave tube comprises an electron gun 23, Figs. 8 and 10, for injecting a stream of electrons into the space between a slow-wave structure, as shown a helix 36, and a plate 48, a pair of plates 33, 35 above and below the interaction space for setting up a transverse electric field parallel to the plane of the slow-wave structure, and a pair of polepieces N, S for setting up a crossed magnetic field. The electrons are subjected in addition to O-type and M-type interaction with the travelling wave to a transverse interaction in the direction of the magnetic field. The electrons are collected on the upper plate 33 and at the end of the interaction space by a cup-shaped member 34. The arrangement may be cylindrical with plate 33 or 35 in the centre of the device and the slow-wave structure at one end, and the plate 35 may be the source of electrons. The slow-wave structure may be a single finned, interdigital or periodically loaded structure. In a modification a slow-wave structure may be disposed on each side of the interaction space, in which ease the structures may be coupled 180 degrees out of phase. In the case of helical structures the windings may be in opposite senses. The slow-wave structures may also be coupled in phase, the electrons in this case having no motion towards either structure. With helical structures, each structure may be connected at one or more points to the plate 35. In other modifications an electron stream may be directed along each side of a central slow-structure 38, Fig. 13, or a plurality of interaction structures 38, Fig. 14, and associated electrons streams may be provided within a single envelope.
Patent GB-978937-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: MOFFETT ROBIN HENRY
IPC: H04J3/10
Filed: 1961-03-15
Abstract: 978,937. Pulse code modulation systems. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. March 9, 1962 [March 15, 1961], No. 9523/61. Heading H4L. In a switching arrangement for a time division multiplex pulse code modulation system, transistor gating circuits are employed on the transmit side for samping the individual channels and on the receiver side for distributing the received signal to the individual channels. Each transmit channel signal is applied to the base circuit of a transistor, Q1, which has its collector connected to the emitter terminals of transistors Q2 and Q3. These transistors are so biased that Q2 normally conducts the signal to a current sink CS1. During the channel sampling period, the sampling pulse cuts off transistor Q2 and the signal passes via transistor Q3 to the P.A.M. Highway. On the receive side the received P.A.M. signal is applied to the emitters of a number of normally cut-off transistors, one for each channel. A negative switching pulse applied to the base of each transistor in turn connects the received signal to the appropriate channel.