baber/WOPTO huggingface dataset:
Patent GB-1074668-A (GB)
Title: Improvements in or relating to variable attenuators
IPC: H03G1/00
Filed: 1966-02-08
Abstract: 1,074,668. Variable attenuator. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Feb. 8, 1966 [Feb. 8, 1965], No. 5489/66. Heading H4R. A variable attenuator which includes a photoresistive element illuminated by a controlled light source to control the attenuation has a constant D.C. voltage applied to the attenuator in addition to the A.C. signal to be attenuated. The attenuated D.C. voltage is compared with a control voltage and the difference used to adjust the illumination from the light source. The Figure shows a system in which a D.C. voltage developed across Zener diode 8 is applied to the input of an attenuator I together with the alternating input signal. The output of the attenuator, together with a fixed D.C. bias from Zener diode 7, is applied to a D.C. amplifier, including transistors 10 to 13, which, due to its negative feedback connection, has a low A.C. input impedance so that the A.C. signal output of the attenuator I is attenuated in resistor 19 and does not affect the control function. The amplified D.C. output of the attenuator is fed to the emitter of transistor 12 and a control voltage, e.g. from a control potentiometer at a remote point, is fed, via diode 15, to the base, so that the collector signal depends on the difference between the amplified attenuator output and the control voltage, and this collector signal controls the illumination of lamp 4 via transistor 13 to tend to reduce this difference to zero. The attenuation is therefore controlled in accordance with the voltage applied to terminal F. Since a filament lamp has a large thermal inertia, which can cause low frequency instability, when operated below a temperature corresponding to cherry red, a diode 14 is connected between a bias source and the base of transistor 12 to limit the minimum current supplied to the lamp 4 and therefore the maximum attenuation supplied by attenuator 1. In order to obtain greater attenuation, e.g. in the range 30-90 db., an attenuator II is provided which comprises a photo-resistor 5 illuminated by a lamp 6 fed with current by a transistor 17 the current through which is controlled by the control voltage fed to its base. The arrangement is that maximum current flows in transistor 17 and lamp 6 at the point where the limiting diode 14 starts to take effect, and for control voltages below this level control is effected solely by transistor 17, lamp 6, and attenuator II, while above this level the control is effected via attenuator I.
Patent GB-1554962-A (GB)
Title: Gas turbine power plants
IPC: F02K3/12
Filed: 1976-02-12
Abstract: The invention relates to a jet engine unit for a vertical or short take off aircraft comprising a main gas turbine engine 12 to 20, of the ducted fan type powering main steerable nozzles 22, 23 and one or more auxiliary gas turbine engines 24, actuated by the pressurised air originating from the fan duct 14 of the main engine, and acting via steerable auxiliary nozzles 28 arranged upstream of the main nozzles. The unit according to the invention improves the balancing of the thrusts and reduces the fuel consumption. <IMAGE>
Patent GB-160646-A (GB)
Title: Improvements in and relating to binders for loose sheets, letters, documents and the like
IPC: B42F13/00
Filed: 1920-02-24
Abstract: 160,646. Mann, A., and Copeland- Chatterson Co., Ltd. Feb. 24, 1920. Locking-followers. - The locking-follower de. scribed in Specification 1888/14 is combined with a removable binding-post m passing through the hollow clamping-member c, d and engaging loosely in a recess n<1> in the lower clamping-bar a. A cross-bar o joining the two members of the double locking-strip grips the removable post when the binder key is operated. More than one removable post may be employed.
Patent GB-1140834-A (GB)
Title: Polyester compositions
Inventor: KIBLER CHARLES JACOB
IPC: C08K5/098
Filed: 1966-02-09
Abstract: 1,140,834. Fatty acid salts. EASTMAN KODAK CO. 9 Feb., 1966, No. 5578/66. Heading C2C. [Also in Divisions C3 and D1] In Examples 15-20 fatty acid salts of Ni, Cu, Cr or Co are prepared by reaction of the metal carbonate with a C 4-20  fatty acid in ethanol. Exemplified are nickelous pelargonate, 2 - ethylhexanoate, 2 - ethylhexanoate/pelargonate, oleate, stearate and 2-ethylbutyrate, and cobaltous and cupric pelargonates.
Patent GB-1033041-A (GB)
Title: Vulcanisable compositions
IPC: C08K5/04
Filed: 1964-02-11
Abstract: The blooming on the surface of a vulcanized article made from a composition comprising an alpha olefin polymer or copolymer, a reinforcing filler, and as a cross-linking agent, a ,a 1-bis-(tert. butyl peroxy) paradiisopropylbenzene or a mixture thereof with its metal isomer, is prevented by incorporating an aliphatic polyalcohol or a polyalkylene oxide. In the examples compositions comprise an ethylene/propylene copolymer (or a mixture of two such polymers), carbon black and glycerine, ethylene glycol, triethylene glycol, polyethylene oxide and a glycol of unknown constitution mixed with silica.
Patent GB-1078153-A (GB)
Title: Improvements in or relating to turbine blades
IPC: F01D5/28
Filed: 1965-02-10
Abstract: 1,078,153. Turbine blades. L. BULLOCK May 10, 1966 [Feb. 10, 1965], No. 5705/65. Heading FIT. A turbine blade having a bridge piece attached to each face of the blade has the free end of each bridge piece coated with a wear resistent layer in the form of a particulate material distributed in a base medium. The construction reduces wear when the bridge pieces of adjacent rotor blades in a gas turbine rub together during blade vibration. The particulate material may be natural or synthetic diamond, sapphire, boron or silicon nitride or boron carbide. The base material may be a ceramic or a metal similar to that of the blade and bridge pieces, e. g. titanium, a nickel-chromium alloy, or an aluminium alloy.
Patent GB-652427-A (GB)
Title: Improvements in fungicides
IPC: A01N59/20
Filed: 1948-02-26
Abstract: Complex chromates for use as fungicides and insecticides which contain in addition to hexavalent chromium, two or more of the multivalent metals Cu, Al, As, Ba, Ca, Cd, Ce, Co, Fe, Hg, Mn, Ni, Zn, U, or trivalent chromium, and optionally monovalent metals and organic radicals in addition, and have a solubility such that by mixing one part by weight thereof with 100 parts by weight of water at 25 DEG  C., the dissolved chromate yields between 0.0001 and 0.03 grams of hexavalent chromium per 100 c.c. of solution, are prepared by precipitation from aqueous solutions of salts of the multivalent metals by the addition of an aqueous solution containing hexavalent chromium, a basic substance such as alkali or alkaline earth hydroxide, or ammonia being added to adjust the precipitation pH. Too high a solubility may be corrected by repeated washing with water and/or heating in an autoclave.  The Specification as open to inspection under Sect. 91 comprises also chromates with the above solubility characteristics which contain only one multivalent metal which may in addition to the above include beryllium.  This subject-matter does not appear in the Specification as accepted.ALSO:A fungicidal composition which may also be an insecticide comprises a carrier and a basic chromate containing two or more multivalent metals in addition to hexavalent chromium, said chromate having a solubility such that by mixing one part by weight thereof with 100 parts by weight of water at 25 DEG C., the dissolved chromate yields between 0.0001 and 0.03 grams of hexavalent chromium per 100 c.c. of solution.  Numerous examples relate to two or more of the multivalent metals copper, aluminium, arsenic, barium, cadmium, calcium, cerium, cobalt, iron, mercury, magnesium, manganese, nickel, zinc, uranium and trivalent chromium; in addition monovalent metals or ionizable biologically active groups may be present.  The latter may be formed by the reaction of the chromates with ammonia, amines, amides, imides, thiocompounds or other organic groups such as nitroaromatic, imidazoline or thiazine.  The chromates are preferably employed partly dissolved and partly suspended in water for example, the undissolved portion being up to 1 per cent by weight of the liquid carrier and chromate.  Adhesives and insecticides such as rotenone, pyrethrum, arsenates, sulphur, nicotine, halogenated hydrocarbons such as D.D.T., or tetramethyl thiuram disulphide may be added.  The Specification as open to inspection under Sect. 91 comprises also chromates which have the above solubility characteristics but which contain only one multivalent metal, which may in addition to the above include beryllium.  Additional examples relate to complexes containing ethylene diamine, p-nitrophenate, 2 hepadenyl, 2 imidazoline, 3, 5 dinitrobenzoate, p-nitrobenzoate, tetraethylene pentamine and phenothiazine substituants.  This subject-matter does not appear in the Specification as accepted.
Patent GB-298032-A (GB)
Title: Improvements in and relating to obstetrical forceps
IPC: A61B17/44
Filed: 1928-02-23
Abstract: 298,032. Roderick, R. D. Feb. 23, 1928. Obstetric and uterine appliances. - An obstetrical forceps comprises a pair of blades 1, 2 which are rotatably and longitudinally adjustable, with respect to one another, to a number of positions and have means for locking them in these positions. Each blade 1, 2 is pivoted to a shank member 4, 5 and has locking notches 6 engaged by a rod 7 sliding in the shank. The shanks 4, 5 can be adjusted longitudinally to three relative positions, a stud 15a on shank 5 engaging in one of three notches 14, 15, 16 in shank 4, and are secured in these positions by locking a screwthreaded bar 12, pivoted to shank 5, by means of a screw 13 in a corresponding notch 9c, 9b, 9a in shank 4. The shanks 4, 5 have each a handle 16<1>, 16a, the handle 16a having an extension 18, on which a handle 21 is secured by a universal joint 22.
Patent GB-1324581-A (GB)
Title: Punching apparatus
IPC: B21D28/34
Filed: 1972-02-08
Abstract: 1324581 Punching MILLER HOLDING MAATSCHAPPIJ NV and L HONINGS 8 Feb 1972 [8 Feb 1971 (2)] 5837/72 Heading B3W The punching apparatus having a punch support 3 axially slidable in a bore 2 of a housing 1 and a thrust element 12 carrying a punch 6 and axially slidable in the punch support 3, rotation of the element 12 relative to the support 3 and/or the support 3 relative to the housing 1 is prevented by a resiliently biased guide element 19 engaging an axially extending groove 17, 18. The head 6<SP>1</SP> of the punch 6 is provided with two flat surfaces so that it can be non rotatably mounted in a recess of a pin 12<SP>1</SP> which can be locked by a screw 13 in any desired angular position relative to an outer sleeve 12<SP>11</SP>. V-shaped grooves 17, 18 in the outer sleeve 1211 and the punch support 3 are engaged by balls or pins (25) (Fig. 3, not shown) having hemispherical ends which are positioned in bushes (20) locked by nuts 27 in screw threaded engagement with the support 3 and housing 1. The ball or pin (25) is biased into the groove 17, 18 by a spring (24), the force of which is adjustable by a screw (26). The punch support 3 and the element 12 are biased upwardly by springs 5, 11. The punch 6 is slidably in bush parts 7<SP>1</SP>, 711 having interengaging fingers 8, the lower part 7<SP>1</SP> being fast with the punch support 3 and the upper part 711 being movable with the element 12. The lower bush part 7<SP>1</SP> acts as a stripper during the return stroke of the punch 6. The die 29 is held in an aperture 28 in the housing 1 by a screw 31 extending transversely of a slit 20 extending from the aperture 28. The apparatus, which is adapted to be arranged in a crank press, may punch circular or non circular holes in a workpiece which is located against an adjustable stop 35.
Patent GB-286089-A (GB)
Title: An improved method of repairing or building up the surfaces of metal articles
IPC: B23P6/00
Filed: 1927-03-02
Abstract: 286,089. Jones, E. H., and Williams, S. March 2, 1927. Reworking worn articles.-Shafts, pins, pistons, cylinders, bushes and other articles having surfaces subject to wear, have the worn surfaces renewed by laying wire or metal strip in a series of adjacent turns on the surface and welding or brazing the wire to the surface, the treated sur. face then being machined to size. The wire may be capable of being hardened, as by quenching immediately after the welding &c. The wire may be of a metal similar to that of the article, or of a different metal in order to impart different surface properties to the article.
Patent GB-172559-A (GB)
Title: Improvements in and relating to albums
IPC: B65D85/57
Filed: 1921-02-21
Abstract: 172,559. Johnson, J. W. Feb. 21, 1921. Albums. - Phonograph record albums for storing flat records are composed of double envelopes, the outer envelope 11 being large enough for a full size record, and the inner envelope 12 attached on one side to the outer, accommodating a small size record. Each envelope has central openings in corresponding positions.
Patent GB-829164-A (GB)
Title: 2-amino-halobenzoxazoles, and salts and compositions thereof
Inventor: MARSH DAVID FIELDING
IPC: A61K31/00
Filed: 1958-02-24
Abstract: The invention comprises 2-amino-5-bromo-, 2-amino-6-bromo-, 2-amino-6-chloro- and 2-amino - 5 - chloro - 6 - bromo - benzoxazole, acid addition salts thereof, and their preparation by (1) reacting the appropriate halogen-substituted 2-aminophenols with cyanogen bromide, e.g. in an organic solvent, (2) heating the appropriate halogen-substituted 2-hydroxyphenyl-thioureas to remove H2S (preferably in an alkaline medium and/or in the presence of a metal salt forming an insoluble metal sulphide), (3) (in the case of 2-amino-6-chloro- and -bromo-benzoxazole and 2-amino-5-chloro-6-bromo - benzoxazole) direct halogenation of the corresponding 6-unsubstituted compounds, and (4) aminating the corresponding 2-Y-halobenzoxazoles where Y is a hydrogen or halogen atom or a sulphonic group, by reaction with hydroxyl amine in the first case and with ammonia in the other two cases.  The invention also includes compositions for the relief of spasticity in which the 2-amino-halobenzaxazoles above, or their acid addition salts, are the active constituent (see Group VI). Examples describe the following preparations: 2-amino- and 2-amino-5-chloro-benzoxazole are directly brominated in methanol to 2-amino-6-bromo- and 2-amino-5-chloro - 6 - bromo - benzoxazole; the conversion of the former into its hydrochloride is also described; 2 - amino - 4 - bromophenol and 2 - amino - 4 - chloro - 5 - bromophenol are reacted in methanol with cyanogen bromide (prepared in situ from sodium cyanide and bromine), the solutions being subsequently neutralized, to give 2-amino-5-bromobenzoxazole, and 2 - amino - 5 - chloro - 6 - bromobenzoxazole, the former being converted into its hydrochloride; 4-chloro-2-hydroxyphenyl-thiourea is heated in methanol with yellow lead oxide to give 2-amino-6-chlorobenzoxazole, which is converted to its hydrochloride; 5-bromobenzoxazole is aminated, by heating with hydroxylamine, to 2 - amino - 5 - bromobenzoxazole, and 2,6-dichlorobenzoxazole is treated with aqueous ammonia to give 2-amino-6-chlorobenzoxazole.ALSO:Compositions for the relief of spasticity comprise 2-amino-5-bromo-, 2-amino-6-bromo-, 2-amino-6-chloro- or 2-amino-5-chloro-6-bromo-benzoxazole, or an acid addition salt thereof, together with a pharmaceutical carrier, which may be liquid (to give solutions for parenteral injection, or solutions or suspensions for filling capsules) or solid (to give powders or especially tablets).  The active ingredients also possess anticonvulsant properties and ability to potentiate the depressant activity of barbiturates.  Specified acid addition salts include the nitrate, acetate, propionate, caproate, stearate, maleate, crotonate, fumarate, oleate, citrate, tartrate, lactate, benzoate, naphthoate, salicylate, methane sulphonate and camphor sulphonate.
Patent GB-466300-A (GB)
Title: Improvements relating to ploughs
IPC: A01B3/58
Filed: 1936-02-28
Abstract: 466,300. Implements for working land. PUGH, Ltd., C. H., and STARKEY, E. W. Feb. 28, 1936, No. 5976. [Class 6 (i)] A plough having two wheels or adapted to be connected to a tractor having two wheels, comprises a beam, a depth-adjusting lever pivoted to the beam, a plough body or frame pivotably mounted on the lever for transverse angular adjustment, and a member on the plough body or frame adapted to co-operate with a part carried by the beam in order automatically to turn the plough body or frame about the lever to the correct working position in relation to the beam when the depth of cut is adjusted by the operation of the lever. In the arrangement shown the forked end of the plough beam 3 is detachably pivoted on a tractor 1 having two wheels 2, one of which runs in the furrow. The rear end of the beam 3 is inclined upwards and then bent downwards and provided with spaced holes 6 through any one of which may be passed a pin 7 for adjustably supporting the end of a depth-adjusting lever 8 pivoted on the beam. The frame 11 of the plough body 10 is pivotably connected to a round part of the lever 8 by bearing blocks 12, and carries an arm 13 to which a coulter 14 is fixed. One of the blocks 12 carries an inclined plate 15 having in it a curved cam-slot engaging a pin 17 mounted between two spaced brackets 18 extending laterally from the beam 3. When the lever 8 is raised or lowered the engagement of the cam-slot with the pin 17 causes the frame 11 to turn angularly about the lever 8 to compensate for the different tilt due to the different depth of the furrow in which the furrow wheel runs. In a modification a cam-slot carried by the beam may engage a part carried by the plough unit. The beam 3 may be connected to the guiding handles 19 by an adjustable link 20.
Patent GB-1065861-A (GB)
Title: Improvements in and relating to seat tracks
IPC: B60N2/06
Filed: 1964-02-13
Abstract: 1,065,861. Adjustable seats. B. L. DALL. Feb. 13, 1964 [Feb. 14, 1963], No. 6011/64. Addition to 879,279. Heading A4J. A seat track comprises a tubular carriage 14 telescoped over a tubular support 13, roller bearing means 17 interposed between surfaces 15, 16 on the carriage and support respectively at longitudinally spaced points along the carriage, each roller bearing means 17 comprising a plurality of discrete contiguous roller members 20. Guide members 18 are movable with the roller bearing means 17 independently of the support and carriage. Each of the roller members 20 complises a tightly wound helical wire spring 35 having a solid cylindrical member 36 in each end thereof. Each member 36 has a reduced end 37 which extends into its respective spring and a cylindrical periphery 38 which engages the inner surface of carriage 14 and the outer surface of support 13. The other end 39 of each cylindrical member 36 is slightly convex.
Patent GB-563674-A (GB)
Title: Improvements relating to mechanical remote control devices
IPC: F16C1/26
Filed: 1943-04-15
Abstract: 563,674. Bowden mechanism, AUTOMOTIVE REMOTE CONTROLS (STOKEON-TRENT), Ltd., and POOLE, H. G. April 15, 1943, No. 6060. [Class 80 (iii)] In Bowden mechanism comprising a cable and a closely coiled spring for transmitting respectively pull and push to terminal members h, each terminal member passes through a multi-gland unit which provides at least one trap chamber between packing washers. A part a is internally threaded to receive the end of the guide tube f and has a flange g to guide the member h and form an abutment against which a packing washer d is clamped by a second member b which is threaded into a. This second member provides a shoulder against which a second packing washer e is clamped by a third member c screwed into b. The space along the interior of the member b between the washers d, e forms a trap to prevent escape of lubricant and entry of foreign matter. More than one intermediate member b may be employed.
Patent GB-907438-A (GB)
Title: A control circuit for the speed regulation of an electric motor
IPC: H02P7/26
Filed: 1960-02-22
Abstract: 907,438. Automatic control of electric motors. SIEMENS-SCHUCKERTWERKE A.G. Feb. 22, 1960 [Feb. 25, 1959], No. 6173/60. Class 38 (4). The actual value of the speed of an electric motor 1 is detected by a tachometer generator 8, the voltage of which is compared with a reference voltage adjusted by hand-setting lever 7. The error voltage obtained from comparator 4 provides a reference voltage with which an acceleration signal voltage is compared, the latter being derived from the tachometer generator, through a differentiating circuit 9. From the comparator 5 is obtained an output which serves as a reference voltage for comparison with a signal voltage representing the armature current of the motor, and the error voltage so obtained controls the rectifier 2 in series with the motor. The field excitation is reversibly regulated by circuit 12 in accordance with the sign of the output voltage of the comparator 5. When the speed-error signals are small, the output voltage of the comparator 4 follows the speed deviation linearly. For larger deviations, this output voltage is restricted to a constant maximum value. At negative speeds, the acceleration and deceleration are set at maximum values which differ from the values set at positive speeds.
Patent GB-1530776-A (GB)
Title: Skin melted articles
IPC: C23C26/00
Filed: 1977-02-15
Abstract: 1530776 Bearings UNITED TECHNOLOGIES CORP 15 Feb 1977 [17 Feb 1976] 06191/77 Heading F2A [Also in Division B3] A bearing member comprises a crystalline substrate with a resolidified surface layer which is amorphous or has grains one dimension of which is less than 1000 Š, the layer being of thickness from 2À54 Á to 1270 Á, and an epitaxial layer between the substrate and the surface layer, the substrate being at least four times the surface layer in thickness. Preferably a surface area to be treated is a eutectic mixture, e.g. of Pd-Cu-Si, and is melted by passage of 3kw continuous CO2 laser beam, giving a melt depth of 76 Á to 100 Á average. In another example, a eutectic mixture of Ni-B was treated. The cooling rate (by conduction into the substrate) in excess of 5000‹ C./sec will produce an amorphous or fine grain surface layer of increased hardness and corrosion resistance. In other examples, C, B, P, or mixtures thereof are alloyed with Ni, Fe, Co, or mixtures thereof. Another composition used is 15% Co, 15% Cr, 5% Mo, 4% B, remainder Ni.
Patent GB-108869-A (GB)
Title: Improvements in and connected with Filter Presses.
Inventor: GUERRERO WLADIMIR
IPC: B01D25/176
Filed: 1916-05-01
Abstract: 108,869. Guerrero, W. May 1, 1916. Filter-presses; adding pulverulent material prior to filtering. -Plates for filter-presses are formed of open-spaced interlaced or intertwined spirals of wire or rods which form a thick or open-work grating having an intermediate free space between the two outer surfaces, through which filtered liquid may be removed. The grating are secured in rigid frames M, either by straps G<2>, Figs. 1 and 2, embedded in the frame and passing round a rod P to which the grating is wired, or by casting the frame round the rod P, or by forming the frame in separable parts clamped over the rod P. In use, the frames carrying the gratings may be separated by frames Q, Fig. 9, which carry double stay-bars H bent into U-shape at their ends. The porosity of the cake, and therefore the capacity of the filter, may be increased by mixing with the liquid to be hltered, substances that are porous and have clarifying properties, such as bicalcium phosphate or infusorial earth.