baber/WOPTO huggingface dataset:
Patent GB-825548-A (GB)
Title: Improvements relating to valves for controlling gas flows
Inventor: ROBIN HAROLD KILNER
IPC: F16K31/02
Filed: 1955-04-15
Abstract: 825,548. Electrically-actuated valves. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd., and NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 13, 1956 [April 15, 1955], No. 10966/56. Class 135. A valve for controlling gas flows comprises an annular seating member 4 surrounding a gas orifice and a closure member 7 movable a short distance away from the seating member to open the valve, one of the members being of semiconductor material and the other of metal, or both the members being of semi-conductor material so that when a predetermined electrical potential difference is applied between the members their abutting surfaces which are optically ground together are maintained in engagement to close the valve. Preferably the seating member 4 is of metal and the closure member 7 is of semi-conductor material such as an oxide of chromium, cobalt, iron, nickel, or titanium or material containing such oxides. Fig. 1 shows a flap valve 7 mounted on a leafspring 8 having a fixed support 9. The seating 4 is held against a rubber washer 6 adjacent the outlet 3 of a gas reservoir 1 by a clamping-ring 5. The spring 8 is chosen so that the period of vibration of the member is similar to or longer than the period required to empty the reservoir, the latter being supplied at a constant rate. The rate of flow through the orifice 3 may be altered by alteration of the potential difference across terminals 10. Thereby the frequency of oscillation is changed. By further increase of the potential difference, the valve is held closed against the gas supply pressure. The vibration may be effected electromagnetically, or pneumatically in the manner of an organ pipe reed by intermittent pressure set up in the reservoir. More than one leaf-spring may be employed. The leaf-spring may be replaced by a helical or other spring. The clamping ring may be dispensed with. In a modification the closure member 7 is mounted in a rubber cup supported by a series of springs each anchored to an adjustable screwed rod. In the case of small gas flows the closure member may be moved directly by the attractive force between the semi-conductor and the metal.
Patent GB-1137805-A (GB)
Title: Supporting arrangement for transportable machinery implements
Inventor: CLOWES ANTHONY WILLIAM
IPC: E02F9/08
Filed: 1967-03-09
Abstract: 1,137,805. Earth-moving machines. A. W. CLOWES. 9 March, 1967, No. 11126/67. Heading E1F. A shovelling unit-supporting, vehiclemountable structure consists of a frame 11 securable to the chassis of the vehicle 2 and a shovelling unit-supporting stand 10 of which a cross member 8 is so pivoted in the ends of arms 13 of the frame 11 that the stand can be pivoted about the axis of the cross member 8 by a ram 18 extending between the frame and the stand. Brace structures 23 are provided on the vehicle for the stand to abut against to relieve stresses on the frame when the shovel unit is operative. A dozer assembly 26 may also be associably mounted on the vehicle with the brace structure 23.
Patent GB-1177254-A (GB)
Title: Improvements in Rotary-Piston Internal Combustion Engines
Inventor: WALKER HAMILTON
IPC: F02B53/00
Filed: 1967-03-09
Abstract: 1,177,254. Rotary-piston I.C. engines. H. WALKER. March 9, 1967. (March 15, 1966], No. 11219/67. Heading F1F. A rotary-piston I. C. engine comprises a plurality of pistons 25..25<SP>111</SP> pivotally mounted upon radial arms 21<SP>1</SP> of a rotor having a shaft 21, the pistons being furnished with seals 27, 29 abutting the walls of a stator 20 to form chambers C that are isolated from an induction chamber 30 into which a fuel-air mixture is taken through a channel 33 in said shaft controlled by reed valves 34. During operation of the engine, the mixture in the chamber 30 is partially compressed by the pistons and then transferred to the chambers C through channels 33<SP>1</SP>, 33<SP>11</SP> in the stator, said mixture being further compressed in the chambers C before it is ignited by spark-plugs 31. After undergoing expansion, the combustion products are discharged through ports controlled by non-return valves 32<SP>1</SP>, 32<SP>11</SP> of the poppet type, as shown, or of the reed type. Cooling is effected by water in a jacket 35. In a second embodiment, Figs.3 and 4 (not shown) the rotor carries only two pistons and stator has an elliptic profile, the peripheral wall of the stator having ports (33c and 33e, 33#) therein for a fuelair mixture inlet-duct (33d) and an exhaust manifold, respectively, which ports are controlled by reed valves. A chamber (40), which similar to the chamber 30, is charged with air through a duct (41, Fig. 10, not shown), controlled by valve including co-axial sleeves (41a, 41b), one of which is fixed and the other rotable with the rotor. The air in the chamber (40) is transferred through channels (50) to the chambers C associated with pistons to mingle with the fuel-air mixture admitted thereto directly through the port (33c). The compressed mixture in each chamber C is ignited when the latter comes into register with a single spark-plug (31). The profile of the stator for each embodiment is described with reference to Figs. 12 and 13 (not shown), and for these details the Specification should be referred to.
Patent GB-997536-A (GB)
Title: Improvements in casings for dynamo-electric machines
Inventor: KOBER WILLIAM
IPC: H02K5/04
Filed: 1961-07-05
Abstract: 997,536. Casing for dynamo electric machines. GARRETT CORPORATION. July 5, 1961, No. 11250/65. Divided out of 997,535. Heading H2A. Two easing parts for a dynamo-electric machine are secured together by each having rings 27 lying in grooves, and rebated rings 29 overlying these rings and drawn together by bolts 32<SP>1</SP>, The parts are aligned by ring 34.
Patent GB-141522-A (GB)
Title: Improvements in woven pile fabrics
IPC: D03D27/10
Filed: 1919-05-06
Abstract: 141,522. Coley, J. May 6, 1919. Pile fabrics. - A double-woven pile fabric for carpets and rugs has lower and upper bodies 1, 2 of the same pattern but different qualities, the lower body being of the Wilton type with sets of pile warps, such as 4, 5, running through the backing and raised by the jacquard to form the pile and to be bound into the upper body, where they are looped over wefts 8 at the back to show the pattern. The upper body may be woven with or without stuffer warps 12, and the lower body may have stuffer warps. The two bodies have similarly-arranged binding-warps 10, 10<a> and 11, 11<a>, back wefts 8, 21, and front wefts 9, 22 between the pile loops, a weft being inserted in each bodv for each beatup of the lay. The pile warps for one row are raised in spaced sections or groups and descend immediately after being bound in by the wefts 8, and the remaining pile warps in the spaces between those previously raised are raised for the next row, a relatively large number of rows per inch being possible since pile wires are not employed. The pile warps in the woven fabric are cut at the line 3-3 or elsewhere in the loom or otherwise. Reference has been directed by the Comptroller to Specification 17744/05.
Patent GB-117949-A (GB)
Title: Improvements in or relating to "Diaphragm Cylinders" for Vacuum Brake Apparatus and the like.
Inventor: LUARD EDWARD SYDNEY
IPC: B60T13/46
Filed: 1917-08-09
Abstract: 117,949. Luard, E. S. Aug. 9, 1917. Piston-packing substitutes.-In a vacuumbrake cylinder, collapse of the packing-sleeve 2 of the piston is prevented by a conical ring 8 with a smooth exterior fitting the interior of the sleeve 2. The ring 8 may be of ename.led pressed steel having a flange or lugs secured beneath the ring 6 which secures the sleeve 2, or, as shown, the ring 8 may be a detached cast-iron ring resting on an up-turned flange 6a of the ring 6. In the latter case, the ring 8 may be formed with guiding-lugs overlapping the flange 6a.
Patent GB-551827-A (GB)
Title: Improved process for the preservation of eggs
IPC: A23L1/305
Filed: 1941-09-09
Abstract: 551,827. Preserving eggs. BROOKS, J. Sept. 9, 1941, No. 11484. [Class 49] Dried eggs are preserved from effects due to oxidation by incorporating preferably in the egg pulp before drying, a small proportion of cysteine e.g. 0.005-0.02 per cent. of cysteine hydrochloride by weight of the undried eggs.
Patent GB-191404-A (GB)
Title: Improvements in coherers for detecting electric radiation
IPC: H01C8/02
Filed: 1917-08-10
Abstract: 191,404. Low, A. M. Aug. 10, 1917. Drawings to Specification. Coherers for wireless reception comprise a mixture of silver and nickel particles wholly or iu part coated with the sulphides of the respective metals by heating them in an atmosphere of sulphur dioxide. When in use the particles may be enclosed in a glass tube and held between a fixed and an adjustable electrode.
Patent GB-983663-A (GB)
Title: Tertiary phosphine oxides
IPC: C07F9/53
Filed: 1962-03-27
Abstract: Tertiary phosphine oxides of formula <FORM:0983663/C2/1> wherein Y is hydrogen, C1- 6 alkyl or aryl, Z is hydrogen or C1- 6 alkyl, M is an electronegative group (defined as a group having a sigma (para) constant greater than +0.3), and wherein (1) when M is <FORM:0983663/C2/2> Z can also be <FORM:0983663/C2/3> where R is C1- 12 alkyl, and (2) when M is NC-, Z can also be NC-CH2-CH2-, and wherein M, Z and Y and the carbon atoms to which they are attached may form a 1,1,2,2-tetrafluoroethyl or 2 - chloro - 1,1,2 - trifluoroethyl group, are prepared by reacting an a ,b -unsaturated compound <FORM:0983663/C2/4> with elemental phosphorus and a strong base in the presence of water.  Specified electronegative groups include nitrile, carbamoyl and substituted carbamoyl, carboxylic ester, benzoyl, acetyl, trifluoromethyl, trimethyl ammonium, methylsulphonyl, methylsulphinyl, and sulphamoyl groups.  Alkali metal and alkaline earth metal hydroxides are specified bases.  A solvent may be used.  Temperatures of 0-175 DEG  C., preferably 15-75 DEG  C., are mentioned.  The invention also comprises as novel compounds phosphine oxides of formula <FORM:0983663/C2/5> where A is hydrogen, C1- 6 alkyl or phenyl, A1 i hydrogen or C1- 6 alkyl, Z is hydrogen or methyl and Y is hydrogen, methyl or phenyl, and of formula <FORM:0983663/C2/6> where R is C1- 12 alkyl, Y is hydrogen, C1- 6 alkyl or phenyl and Z is hydrogen, C1- 6 alkyl or -CH2CH2COOR, where R is C1- 12 alkyl.  Th products of the invention may be used for flameproofing cotton.  Reference has been directed by the Comptroller to Specification 923,532.
Patent GB-1393553-A (GB)
Title: Self cleaning boots shoes overshoes and the like
IPC: A43B3/16
Filed: 1972-08-22
Abstract: 1393553 Boots &c B F GOODRICH CO 22 Aug 1972 [23 Aug 1971] 11681/74 Divided out of 1393552 Heading A3B A boot, shoe, overshoe or the like has a bottom including a sole portion 22, a heel portion 21 and a "foxing strip", the sole and heel portions 21, 22 each having a plurality of transversely extending downwardly inclined flexible fins 25, the foxing strip having either (a) a plurality of horizontally extending flexible fins 30, 31, 32 that lie in parallel rows and slant downwardly and away from the boot as shown in Figs. 1 and 2, or (b) a plurality of flexible fins 25 lying in a generally vertical plane as shown in Fig. 4. The fins trap air between themselves upon deflection and then spring back to their original shape to clean themselves if they have come into contact with mud. Thus the fin structure will inhibit the build up of mud on the bottom and sides of the boot. The vertical fins 25 may be forwardly inclined as shown in Fig. 4 or may be rearwardly inclined. The fins may have parallel surfaces as shown or may have the lobed construction described in Specification 1393552.
Patent GB-1461199-A (GB)
Title: Semiconductor laser
IPC: H01S5/30
Filed: 1974-03-15
Abstract: 1461199 Semi-conductor lasers MATSUSHITA ELECTRONICS CORP 15 March 1974 [20 March 1973 (2)] 11722/74 Headings H1C and H1K [Also in Division C4] In a double heterostructure semi-conductor laser the carrier concentration in its active layer 13, with reference to the thickness of this layer, has a maximum at the centre of the layer and parts of the active layer away from the centre have progressively lower carrier concentrations. The carrier concentration change may be of a step-wise character, Fig. 5 (not shown) or may be continuous, Fig. 7c (not shown). In the embodiment of Fig. 3, which is made by the epitaxial growth of layers 12, 13, 14 and 15 on a substrate 11, the active layer 13 is grown as a series of seven layers. In layers two to four, the concentration of Zn dopant in each layer is greater than in the previous layer, to reach a maximum dopant concentration in layer four. From layers four to seven this effect is reversed, to give a symmetrical step-like distribution of carrier concentration. In the embodiment of Fig. 6 the active layer 113 initially comprises three layers 41-43, 42 being Zn-doped GaAs while 41 and 43 are non-doped GaAs. After production by epitaxial growth of the entire element 111-115, it is heat-treated, causing the Zn dopant of layer 42 to diffuse outwards and produce a symmetrical bell-shaped distribution of carrier concentration (Fig. 7c).
Patent GB-610881-A (GB)
Title: Improvements in electric cable
IPC: H01B9/06
Filed: 1946-04-17
Abstract: 610,881. Electric cables; conduits. TRIGGS, W. W. (American Steel & Wire Co. of New Jersey). April 17, 1946, No. 11849. [Class 36] An electric cable has one or more insulated conductors 2, the insulation 4 about said conductors including a liquid and being enclosed within a fluidtight sheath 10. A tube 14 containing gas is disposed within said sheath 10 and a second tube 12 is provided adjacent tube 14, tube 12 having one or more openings 18 for admitting liquid thereto and terminating in a manifold 22 into which the tube 14 opens. Upon expansion the liquid enters the tube 14 compressing the gas within, and on contraction is returned to the insulation 4 by means of the gas pressure within the tube 14. In one form, the tube 12 may be arranged around the tube 14 and there may be a plurality of these coaxial tubes within the cable.
Patent GB-1422246-A (GB)
Title: Reactor suitable for reactions between two fluids
IPC: B01J14/00
Filed: 1973-03-13
Abstract: 1422246 Reactor; mixing apparatus ETABS GARDINIER SA 13 March 1973 [20 Sept 1972] 11904/73 Headings B1C and B1F [Also in Division Cl] In mixing/reaction apparatus, Fig. 1, comprising coaxial pipes 4, 6 liquefied or gaseous ammonia and aqueous phosphoric acid are admitted through tangential inlets 5 and 7 respectively, and the reaction product leaves at 13. Wheel 6 can be rotated to move a piston 8 axially to control the amount of phosphoric acid entering from 7. The apparatus may be heated and cleaned with steam introduced through pipes 10 and 11. Thus in Ex. 1, mono ammonium phosphate having a strength of 12% N 2  and 52% P 2 O 5  is formed by reacting aqueous phosphoric acid comprising 50% P 2 O 5  at a pressure of 6-7 bars and at # 150C. In Ex. 2, ammonium polyphosphates having a N 2  strength of 11 % and a P 2 O 5  strength of 58% is prepared by reacting 56% aqueous phosphoric acid and ammonia at 7 bars, and mono-ammonium phosphate having a strength of 10% N 2  and 52% P 2 O 5  is formed by reacting 48% aqueous phosphoric acid with liquid amonia at 6 bars. The reactor can also be used for reactions involving nitric or sulphuric acids.
Patent GB-1357718-A (GB)
Title: Manufacturing electrically heatable filaments
IPC: B21F3/12
Filed: 1973-03-13
Abstract: 1357718 Breaking PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 March 1973 [16 March 1972] 11970/73 Heading B3E [Also in Divisions H1 and H5] A method of manufacturing a chain of helically wound wire filaments, i.e. filaments separated by intermediate wire portions, includes clamping members 3 and 4 on to a helically wound wire 1 on a mandrel 2 and moving member 4 in the direction of arrow P so as to break the mandrel between the members and also uncoil a part of the helically wound wire to form the intermediate portion 7. To ensure breaking of the mandrel between the members it is heated by an electric current passing between the members. The wire may be of tungsten and the mandrel of molybdenum. The process may be repeated to form a chain of filaments, the mandrel being removed by etching. The chain may not be broken until in a lamp assembly machine, where lamp filaments with straight ends are achieved. The filaments may be used in incandescent lamps or discharge lamps.
Patent GB-972559-A (GB)
Title: Improvements in or relating to magnetic data-storage devices and magnetic data-stores including such devices
Inventor: BISSET HUGH ALEXANDER
IPC: G11C11/06
Filed: 1962-03-28
Abstract: 972,559. Magnetic storage devices. GENERAL ELECTRIC CO. Ltd. March 27, 1963 [March 28, 1962], No. 11978/62. Heading H3B. [Also in Division H1] An apertured ferrite storage core 1, Fig. 1 (Prov.), is overlaid by a first winding 2 which produces magnetomotive forces in opposite senses around the core aperture 7, and is  threaded by a second winding 3 in which an output signal characteristic of the existing remanent state of the core is induced when the first winding is energized, a ferromagnetic mass 6 formed by ferromagnetic particles in a binder being applied over the first winding 2 on each side of the core so as to provide a magnetic circuit embracing the first winding. The mass 6 is formed of a ferro-magnetic powder consisting either of " Mumetal " (Registered Trade Mark) or an 82% Ni and 18% Fe alloy, and a binder of epoxy resin or other synthetic resins such as polyurethanes, silicones or unsaturated vinyl polymers. Preferably, the viscosity of the resin is reduced by using a reactive plasticizer such as a diglycidyl ether. For operation at temperatures up to 185‹ C. polyvinyl carbazole may be used. More extensive ferromagnetic masses may be used than is shown extending, for example, completely over both faces of the core or to the limits 8. Preferably, the ferromagnetic masses have a preferred direction of magnetization which is imparted by energizing winding 2 during hardening of the resin. The induced output signal is obtained without destroying the information stored in the core, and the remanent state is charged by applying a strong D.C. pulse of appropriate polarity to winding 3 above, or by applying a weaker D.C. pulse to winding 3 in conjunction with a train of twenty-five or more pulses applied to winding 2. Winding 3 has a figure-of-eight configuration so as to minimize spurious outputs. A storage matrix is shown in the Figure accompanying the Complete Specification, and comprises a non-magnetic panel 11 having apertures 12 in which the cores 1 are fitted. The windings 2 form the row word windings and are wound over the panel, while the windings 3 form the column digit windings and are wound through the apertures and around the panel. The assembled matrix is provided with ferromagnetic masses 13 which are formed on both faces and close both ends of the apertures.
Patent GB-514055-A (GB)
Title: Improvements in thermionic amplifiers
IPC: H03F1/36
Filed: 1938-04-21
Abstract: 514,055. Valve amplifying circuits ; impedance networks. STANDARD TELEPHONES & CABLES, Ltd., and ROCHE, A. H. April 21, 1938, No. 11985. Addition to 506,765. [Classes 40 (iii) and 40 (v)] In a negative feedback amplifier as described in the parent Specification networks are provided in the feedback path so designed that outside the operating range the phase and gain characteristics of the amplifier are such as to prevent instability without substantially affecting the gain in the operating range. The Figure shows an amplifier in which the feedback path is taken from the diagonal of an output bridge and includes a low resistance shunt R23 and a potentiometer R22 and R26, L8, C21 of high impedance for frequency and gain control as described in the parent Specification. A network C19, L9, R24, R25 is included in the feedback path to give enhanced stability as described in Specification 499,315. A condenser C18 in shunt to one arm of the output bridge may be provided and varied to adjust the output impedance at high frequencies. In a modification (Fig. 1, not shown) the network as well as the resistance R23 are directly in shunt to the feedback path and to the potentiometer. Specification 472,256 also is referred to.
Patent GB-223832-A (GB)
Title: Improvements in air pumps
IPC: F04B33/00
Filed: 1924-05-15
Abstract: 223,832. Foster, E. E. May 15, 1924. Portabte handpumps.-An air pump comprises a cylinder fitted to a recessed footpiece and containing an axial air tube also communicating with the recess and having an air inlet and a two-way air trap at its upper end. The piston is constituted by a hollow cylinder sliding loosely in the stationary cylinder. The base or foot-piece 1 is formed with a recess 2 covered by a washer 6. An air cylinder 7 is screwed into the base, and a central pipe 9 is screwed through the washer and communicates directly with the recess, from which a discharge pipe 4 leads. The cylinder also communicates with the recess through a hole 11 in the washer closed from below by a ball valve. At its upper end, the tube 9 is formed with a port 27 disposed between cup leathers 24, 25 turned towards each other. Within the cylinder 7 slides a reciprocating air cylinder 15, an air space 16 being formed between the two. At its lower end the cylinder 15 is provided with a downwardly directed cup leather 18, which on the up stroke allows air, entering the space 16 through ports 30 in the outer cylinder, to pass to the lower end of the cylinder 7, this air being forced through the valve 11 on the down strolse. On the down stroke, air from the air space 16 also passes into the cylinder 15 through a lateral air duct 20 fitted with a valve, this air being forced on tne up stroke past the leather 24 to the port 27 of the tube 9. A valved tubular bolt 34 passes through the handle 33 and admits air to the upper part of the cylinder 15 on the down stroke, the air passing to the inner tube on the up stroke.
Patent GB-676354-A (GB)
Title: Improvements in or relating to devices for holding the rocking jacks and jack sinkers of a cotton knitting machine in their sinking positions
IPC: D04B11/00
Filed: 1948-05-03
Abstract: 676,354. Knitting-machines. BATA, NARODNI PODNIK. May 3, 1948 [May 8, 1947], No. 12063/48. Class 74 (ii). Shortly before the slurcock 4 acts on the first sinker jack 1, a comb 10 is rocked to lower springs 9, which it carries, from position C to position D. The spring ends are subsequently lifted seriatim, by a roller 18 travelling with the slurcock, to. allow rocking of the jacks from position A to position B. As each spring comes off the roller, its free end slides on to the inclined face 7 of a projection 6 on the corresponding jack, reaching position F immediately before the end of the sinking movement (and at a time corresponding to the steepest part of the slurcock face). Just before the return of the jacks to position A, the springs are returned to position C. The roller 18 is carried at the end of a pivoted lever 17 rocked, before the end of each traverse, by an abutment 21 ; and is located by stop pins or screws 19.