baber/WOPTO huggingface dataset:
Patent GB-901756-A (GB)
Title: Flexible supports
IPC: F16M5/00
Filed: 1960-05-27
Abstract: 901,756. Hinges and pivots. AEROSCIENCE Inc. May 27, 1960 [June 1, 1959], No. 18886/60. Class 65 (2). [Also in Group XXXII] A spring unit which may act as a substitute for a pivot or knife edge &c. comprises an integral block recessed to form a flexible web 16, Fig. 1, extending between rigid attachment plates 11, 12 which are supported against relative rotation or other relative movements in the parallel plane of the plates by flexible webs 21, 22 extending normally to the plane of the central web 16 adjacent opposite edges thereof and integral with rigid legs 17-20 extending from the attachment plates. The arrangement confines the flexing of the unit to the axis A-A passing through the centres of the webs. The amount of flexing is limited by the engagement of the faces of the attachment plates with the ends of the legs 17-20 which are cut to provide clearances d which predetermine the degree of flexing. For supporting heavy loads, several units may be arranged side-by-side. Flexing in more than one direction may be obtained by arranging one unit above the other with the central webs at right-angles to each other. A micrometer screw device may be arranged between the blocks for adjustment of height.
Patent GB-835663-A (GB)
Title: Improvements in or relating to means for adjusting the tones in electronic musical instruments
IPC: G10H1/24
Filed: 1958-06-12
Abstract: 835,663. Electrophonic musical instruments. SEYBOLD, R. June 12, 1958 [June 15, 1957], No. 18889/58. Class 88 (2). Each of a plurality of timbredetermining circuits has only one controlling contact (or pair of contacts) and each stop-switch actuates a characteristic selection of these contacts. In one embodiment, a rotatable insulating drum 12, Fig. 1, has longitudinal grooves 15 in its surface, and each groove carries a number of conducting elements 16 arranged to bridge certain pairs of contacts I-V when the drum is set to the corresponding position. The drum 12 may be set to any desired position by means of a dial 45, Fig. 7, having a finger-stop 48 movable between stops 49 and 50 so that the dial may be rotated in either direction, or by means of a slider 65, Fig. 10, mounted on a chain which drives the drum through gearing 61, 64. In a second embodiment, Figs. 3, 4 and 5, the drawing of a stop 28 actuates an associated member 21 which, by means of projections 25, moves a selection of bars 20 to bridge corresponding pairs of contacts 22. Any of the circuits may also be established separately by means of an individual push-button 30. This feature may also be combined with the first embodiment. When a valve circuit is opened during a change from one stop to another, either the grid or the anode is earthed until the new circuits are established.
Patent GB-787244-A (GB)
Title: Improvements in or relating to electric signal registering and translating means
IPC: H04Q3/42
Filed: 1953-08-08
Abstract: 787,244. Automatic exchange systems. ERICSSON TELEPHONES, Ltd., and TAUB, D. M. Nov. 8, 1954 [Aug. 8, 1953], No. 18969/53. Class 40 (4). In a register-translator arrangement each code digit of the dialled prefix is stored in a register on one of three four-stage binary stores 1, 2, 3, each stage of which is associated with a pair of gates such as G1, G2, one or the other of which is open according as the stage stores the binary digit " 0 " or " 1 ". Pulses from a common source (Fig. 2) are applied sequentially and cyclically to a plurality of leads, one per possible code prefix (of which only one lead is shown), and in each register each such lead is connected to that twelve of the gates G1 to G24 which will be open if the code prefix particular to that lead is stored in the register. When the lead pulsed is that corresponding to the prefix stored, all twelve of the gates G1 to G24 pulsed deliver an output pulse to coincidence gate G48 which opens the gates G25 to G47 leading to all the binary stage stores 4 to 11 on which the translations are to be stored. As the lead corresponding to a particular code prefix is also connected to those of the gates G25 to G47 leading to the binary stages which require to be operated to store the translation corresponding to that prefix, the translation for the stored prefix is thus registered in the translation storage stages (4 to 11). The four-stage stores 4 to 7 each stores one digit of a four-digit routing number, four-stage store 8 stores a metering instruction digit, and the single stages 9, 10, 11 store pulsing-out instructions. The Specification includes detailed description of the circuitry of the various counters, gates and pulseshaping circuits employed.
Patent GB-498807-A (GB)
Title: Improvements in or relating to electric oscillation generators
IPC: H03B5/10
Filed: 1938-06-27
Abstract: 498,807. Valve generating circuits. SIEMENS & HALSKE AKT.-GES. June 27, 1938, No. 18985. Convention date, June 25, 1937. [Class 40 (v)] In a valve in which oscillations are produced by back-coupling, means are provided to apply to an auxiliary electrode of the valve a regulating voltage dependent on the output oscillation to maintain the output constant. The valve is a multi-electrode valve having anode PQRS or screen-grid P<1>Q<1>R<1>S<1> current-control grid voltage characteristics approximating to Fig. 1a and is preferably so biassed as to operate wholly on the linear portions of its characteristic. Fig. 7 shows a piezo-electric controlled high frequency oscillator 1 in which the arrangement of the oscillation grid G3 between screen-grids enables the frequency generator to be made independent of variations in the H.T. supply by feeding these grids from a common supply by means of a voltage divider. The output together with that of a modulating oscillator 25 is applied to a pentode 28. The modulated output is taken from a secondary winding 37 through selective filters to rectifiers 40, 43 to produce regulating voltages dependent on the amplitude of the high and.low frequency oscillations respectively which control the bias of the grids G1 of the oscillators 1, 25 respectively. Either the anode or an auxiliary grid of the oscillator may be back-coupled to the oscillation grid and the coupling may be magnetic or capacitive. A push-pull oscillator may be used, Fig. 5, in which the outputs of the valve pair 11<1> are applied to rectifier anodes 3, 3<1> to obtain a voltage across loads R4, R4<1> which is applied to a grid 6. In this way an amplified regulating voltage is obtained across resistance R1 and applied to the grids G1, G1<1>, through resistance R2. Fig. 4a shows a single valve oscillator using a modified amplifying circuit for obtaining the regulating voltage. With this arrangement the amount of positive potential applied to the grid G1 when the output is low is limited by applying a fixed bias at a point Q through a resistance R5. In consequence of the unilateral conductivity between the anode 14 and the cathode 4 the potential of the latter is applied to the grid G1 only when this is negative with respect to the voltage of the point Q. The output oscillations may be amplified before rectification and in the case of modulated oscillations the regulating means is so arranged as not to attenuate the lowest modulation frequencies. In a modification, Fig. 6 (not shown), a dry plate rectifier is used in place of a diode for obtaining the regulating voltage. Specification 454,059 is referred to.
Patent GB-433087-A (GB)
Title: Improvements in and relating to fuse cut-outs
IPC: H01H85/143
Filed: 1934-06-27
Abstract: 433,087. Fusible cut-outs. DAMEY, C. A., 24, Upper Marylebone Street, Portland Place, and REDWOOD, W. J., 46, Longfield Avenue, Mill Hill, both in London. June 27, 1934, No. 19004. [Class 38 (i)] The fuse-wire of a bridge-carrier or other type of fusible cut-out is clamped to the terminals by a spring- pressed insulating member. In one arrangement, Fig. 2, pressure of the insulating member 5 which clamps the fuse wire against flanges 4 on the plugs 1 can be increased by a screw 7. In a modification, Fig. 6, in which the terminals 17 are of sheet metal the pressure between the insulating member 15 and the terminals is increased by the insertion of the carrier into the base, the terminals being then forced into recesses 19. The Provisional Specification describes other embodiments.
Patent GB-784652-A (GB)
Title: A method of and apparatus for testing shock-absorbers on vehicles
IPC: G01M17/04
Filed: 1955-07-01
Abstract: 784,652. Testing shock absorbers. BEISSBARTH, H. H. July 1, 1955 [Aug. 4, 1954; May 7, 1955], No. 19051/55. Class 108(3) In a method of testing the shock-absorbers of a vehicle, an oscillating force is applied to a road wheel and corresponding axle of the.:vehicle, and the amplitude of the resulting oscillations is measured. In the construction shown in Fig. 3, one of the vehicle wheels W is driven on to a platform 18 pivotally connected with the' ground. The other end of the platform 18 is connected to an oscillating device 16. The latter may comprise an eccentric with an adjustable throw, driven by a variable speed motor. Alaternatively the platform may be set in oscillation by a compressed air motor, by magnet, or by the rotation of an unbalanced mass. In a modification (Fig. 2, not shown), the device 16 is disposed beneath the platform 18 in a recess in the floor. In a further modification (Fig. 1, not shown) the platform 18 is replaced by a platform carried by a vertical plunger connected to the device 16. An arm 37 connected to the hub cap 47 carries an operating rod 36 of a pointerinstrument 32 clamped at 34 to the wing 35 of the vehicle. The instrument 32 is carried by a mounting (not shown) which is adapted to be either swung (Fig. 8, not shown) or slid (Fig. 9, not shown) to an inoperative position. A pointer is adapted to record on a horizontally-moving paper strip. Four sets of the apparatus shown in Fig. 3 may be grouped together so that all four wheels of a vehicle can be tested simultaneously (Fig. 6, not shown). In the apparatus shown in Fig. 7, no driving motor is necessary. The rear wheels of the vehicle are positioned on a roller, or spaced pair of rollers 26, connected by bevel gearing 28 to a roller or rollers 27 on which the front wheels of the vehicle are mounted. The vehicle is maintained in position on the rollers 27, 26, by front and rear safety wheels 29 and bumper supports 29<SP>1</SP>. The rollers 26, 27, are eccentrically mounted and are driven by setting the vehicle driving wheels in motion. Means is provided for locking the rollers 26, 27, against movement while the vehicle is being driven into position on them. In the method according to the invention, the oscillation may be commenced at a low frequency which is progressively increased until it exceeds the resilient frequency of the axle or axles being tested.
Patent GB-597061-A (GB)
Title: Improvements in means for overload protection of power presses and the like
IPC: B30B15/28
Filed: 1945-07-25
Abstract: 597,061. Mechanical presses. BALMFORTH, J. P., and FERGUSON, PAILIN, Ltd. July 25, 1945, No. 19105. [Class 87 (ii)] [Also in Group XXIX] Pressure is transmitted from the part 1 to the relatively slidable part 2 carrying the press tool by liquid enclosed in the space 5. When the pressure exceeds a predetermined value the deformable pin 10 yields and allows the valve 9 to open and the liquid to escape. The pin 10 may be replaceable. The relative movement of the members 1 and 2 is limited by a pin 4.
Patent GB-588711-A (GB)
Title: Improvements in resilient mountings
IPC: F16F1/54
Filed: 1943-11-16
Abstract: 588,711. Resilient mountings. LORD MANUFACTURING CO. Nov. 16, 1943, No. 19112. Convention date, Oct. 29, 1942. [Class 108 (iii)] Relates to a resilient engine mounting unit comprising a body 8 of resilient material extending axially beyond a receiving member or lug 5, a pressure member or washer 10 secured against the outer face of the body 8 and an assembly device or bolt 14 extending axially from the washer 10'through the body and lug 5. According to the invention, the bolt 14 is spaced from the lug 5 and body 8 so as to be free to move laterally relatively thereto, such movement stressing in shear that part of the body extending axially beyond the lug. As shown, an overhanging aircraft engine, having opposed radial cylinders, is secured to a ring support 1 by means of a number of resilient mountings each comprising a receiving member 5, such as one of the lugs on the engine, having oppositelyfacing tapered sockets 6 connected by a central opening 7, resilient elements 8 each bonded to a pressure plate 10, a spacing sleeve 13 between the plates 10, and a bolt 14 extending through the plates 10 and sleeve 13 and through a bracket 16 secured to the supporting ring 1. The apertures 9 in the resilient elements 8 and the opening 7 are larger than the sleeve 13 to allow the lateral movement of the bolt relatively to the resilient elements.
Patent GB-205192-A (GB)
Title: Improvements in and connected with the manufacture of engine crank cases and the like
IPC: B23B47/28
Filed: 1922-07-12
Abstract: 205,192. English Electric Co., Ltd., and Shaw, F. W. July 12, 1922. Boring.-An internal surface 4 of an engine crankcase &c. is machined by a facing-cutter carried by a boring-bar, an aperture 5 being formed at or near the centre of the surface to permit the passage of the bar. The aperture may be bored and bushed to support the boring-bar. Where internal faces on opposite walls of the case are to be machined, aligned holes 5 are bored and bushed in order that the boring-bar may be supported therein. A flat circular crosshead guide-plate may be seated on the face 4 and may be provided with a spigot fitting the aperture 5.
Patent GB-1467296-A (GB)
Title: Sulphonyl derivatives of erythromycin
IPC: A61P31/04
Filed: 1974-05-01
Abstract: 1467296 Erythromycin derivatives ABBOTT LABORATORIES 1 May 1974 [4 May 1973] 19163/74 Heading C2C Novel erythromycin derivatives of the general formula wherein R is a C 1-6  alkyl, C 2-6  alkenyl, or optionally nuclear substituted aryl, benzyl or aroxyalkyl group, R 1  is a hydrogen atom or methyl group, R 2  is a hydrogen atom or C 1-6  alkanoyl group and R 3  is a hydrogen atom or hydroxyl group, provided that R 1  and R 3  are not simultaneously a hydrogen atom and the nuclear substituent is nitro, alkyl or halogen are prepared by reacting the corresponding compound in which the -OSO 2 R group is replaced by -OH with RSO 2 Cl (when R is vinyl in the product, R may be 2-bromoethyl in the starting material), followed optionally by hydrolysis or alcoholysis when R 2  is a C 1-6  alkanoyl group to give the corresponding product wherein R 2  is a hydrogen atom. Pharmaceutical compositions having antibiotic activity comprise, as active ingredient, an erythromycin derivative of the above general formula, together with an appropriate carrier.
Patent GB-1122616-A (GB)
Title: Improvements in or relating to fan impellers
Inventor: LETTS ROBERT ARTHUR
IPC: F04D29/34
Filed: 1966-05-02
Abstract: 1,122,616. Casting composite articles. AIRSCREW WEYROC Ltd. 21 April, 1967 [2 May, 1966], No. 19247/66. Heading B3F. [Also in Division F1] A metal fan impeller is constructed by first forming a number of blades 2 having root portions 3 and then casting the hub 4 over the root portions. The root portions have a circular cross-section at their base and an elliptical cross-section adjacent the hub periphery to prevent blade rotation. The hub may be a sand or gravity casting of aluminium alloy cast with a cast iron insert 5 for receiving the shaft. Alternatively, the insert may be bolted in the hub subsequent to casting. The blades are of aerofoil section and may be gravity die-cast or forged from aluminium alloy. The blades and hub may be of ferrous alloy.
Patent GB-315561-A (GB)
Title: Improvements relating to the horns of gramophones and like instruments for the reproduction of sounds
IPC: G10K13/00
Filed: 1928-07-03
Abstract: 315,561. Aspden, R. L. July 3, 1928. Horns for granophones are formed in such a manner that the area increases in geometrical progression over a number of sections a, a<1> - - a<10>, the lengths of which decrease in arithmetical or geometrical progression.
Patent GB-147219-A (GB)
Title: Improvements in internal combustion engines for aircraft
Inventor: JUNKERS HUGO
IPC: F02D11/08
Filed: 1920-07-07
Abstract: 147,219. Junkers, H. Nov. 11, 1916, [Convention date]. Regulating.-An engine for aircraft is constructed with a piston of larger diameter than would be necessary at sea-level, the compression space not being reduced. A regulating device, which may be automatic, inserted in the air induction pipe, is adapted to throttle the air supply according to the varying density of the air or to adjust the valve-gear of the cylinders or pump so as to shorten the duration of opening in air of greater density. In the device shown, a throttle valve 2 in the induction pipe is loaded by a spring 3, and the tension on the spring is controlled by an aneroid chamber 6. The control may, however, be applied to the valve-gear and may act through a relay. In applying the invention to a twostroke-cycle engine, the exhaust is withdrawn from the cylinder and air is drawn in at a pressure lower than atmospheric.
Patent GB-1473911-A (GB)
Title: Silicon carbide
IPC: C04B35/575
Filed: 1974-05-02
Abstract: 1473911 Silicon carbide GENERAL ELECTRIC CO 2 May 1974 [13 July 1973] 19328/74 Heading C1A [Also in Division C7] A silicon carbide ceramic having a density of at least 98% of theoretical density and having a fine grained uniform structure comprises a boron additive in an amount of 0À5 to 3% by weight (calculated as boron) which consists of elemental boron or boron carbide and 0À5 to 3% by weight carbon, said boron additive being in solid solution with the silicon carbide. The ceramic is suitably made by forming a substantially homogeneous dispersion of a sub-micron powder of silicon carbide, the boron additive and the carbon and hot pressing the dispersion in an inert atmosphere, e.g. argon, at a temperature of 1900 to 2000 C. at a pressure of 5000 to 10,000 p.s.i. for a sufficient time to produce the high density ceramic, preferably 10-60 minutes. In one embodiment a carbonaceous additive is incorporated into a dispersion of the silicon carbide and boron additive and the mixture is pyrolized to form elemental carbon in situ. Suitable carbonaceous additives include novolak resins, polynuclear aromatic hydrocarbons from coal tar, polyphenylene or polymethylphenylene. The silicon carbide is suitably made by forming a silica gel in a sugar solution, dehydrating the gel to decompose the sugar to form a mixture of silica and carbon and then heating the mixture in an inert atmosphere to form the silicon carbide. The boron additive may be formed in situ by adding boric acid to the silica gel during the above preparation of the silicon carbide powder.
Patent GB-570903-A (GB)
Title: Improvements in the concentration of acids
IPC: C07C51/48
Filed: 1943-11-19
Abstract: Aliphatic acids such as acetic, formic, propionic, butyric and isobutyric acids are concentrated by counter-current extraction with a solvent, the solvent being supplied hot and the extract being cold at the point where it leaves the aqueous acid.  The invention is described with reference to the extraction of acetic acid with a mixture of ethyl acetate and benzene, the solvent being supplied at 40-60 DEG  C. and the acid at 10-20 DEG  C.  The exit end of the extraction column may be cooled externally.  In the distillation of the extract, the solvent vapour carries off the water.
Patent GB-353209-A (GB)
Title: Improvements in lever locking apparatus for railway signalling and similar purposes
IPC: B61L19/16
Filed: 1930-06-26
Abstract: 353,209. Lever locking apparatus for railway signalling. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., Caxton House, Westminster, DOWNES, F., Arlow House, Arlow Road, Winchmore Hill, and ROGERS, W. D., Forres, Walpole Road, Tottenham, both in London. June 26, 1930, No. 19442. [Class 105.] In a lever locking apparatus in which a tappet bar 4 associated with the hand-lever moves a locking dog 29, the dog when moved in one direction positively withdraws a pivoted armature 35 of an electromagnet 34 and the armature moves a member 40 into the path of the locking dog so that reverse movement of the dog is only possible if the electromagnet is energized. The armature 35 is withdrawn by an arm 37 thereon engaging a recess 38 in the bar of the dog 29 ; unless, therefore, the electromagnet 34 is energized the member 40 will not be moved out of the path of the locking dog bar when this bar begins to rise. An economy switch is shown in Fig. 4, comprising a ball 47 co-operating with a recess 51 in the tappet bar 4 to actuate a spring contact strip 45. Pairs of switch contacts may be operated by a connection to the member 40. At the completion of the tappet bar movement the locking dog 29 is drawn into locking engagement by means of a stud 33 on the tappet bar 4. A device to prevent the return of the tappet bar after an incomplete movement comprises a link 61, Fig. 5, pivoted on the tappet bar 4, which engages with a wave form cam 60, but at the end of the stroke moves clear thereof.
Patent GB-266211-A (GB)
Title: Process of producing titanium pigments from materials containing titanium
IPC: C01G23/053
Filed: 1926-08-06
Abstract: 266,211. Marks, E. C. R., (Monk, R. H., and Irwin, J.). Aug. 6, 1926. Titanium oxides.-Titanium pigments are obtained by treating ores &c. containing titanium with an alkali sulphate and an acid at a temperature below fusing point until a solid cake is obtained which is then cooled crushed and extracted with water. If the ores contain iron this is removed by a preliminary treatment which consists in heating them with 25-35 per cent of their weight of carbon at 900-1050‹ C. in a furnace out of contact of air until the iron is reduced to a spongy mass without fusing or sintering the rest of the mixture. The iron is then removed by leaching with ferrio chloride &c. 400 grs of the residue are then mixed with 600 grs. sodium bisulphate and 840 grs. sulphuric acid (66.43 per cent), and the mixture maintained at 120-140‹ C. for about 3 hours. The temperature is then raised to 260‹ C. until a solid cake forms which on cooling is lixiviated with water and the titanium precipitated by hydrolysis at about 75-95‹ C.
Patent GB-843615-A (GB)
Title: Improvements in or relating to gas discharge apparatus
Inventor: THONEMANN PETER CLIVE
IPC: H05H1/12
Filed: 1957-06-20
Abstract: 843,615. Nuclear fusion reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 17, 1958 [June 20, 1957], No. 19518/57. Class 39(4). A gas discharge apparatus comprising a torus within which a gaseous ring discharge is set up and having a liner between the discharge and the wall of the torus is characterized in that the liner is electrically continuous around its large circumference and has a resistance round its large circumference which is large compared with the resistance of the discharge. The liner is preferably corrugated and may be of stainless steel. Fig. 1 shows a quadrant of the torus containing a liner 5 made in three sections connected together by pairs of flanges. The liner is located within the torus by lower insulating blocks 7, insulating blocks 9, 10 at the sides, and further insulating blocks (not shown ) at the top. At one end of the quadrant the liner is connected to a short colander section 15 which is slotted to allow the liner to be evacuated through ports in the lower face of a window box 3 in the torus. To enable the space between the liner and the wall to be evacuated to a lower pressure than the space within the liner a partial vacuum seal is made between the two spaces at the window box 3. A port 52 allows access to the inside of the liner for experimental purposes, and leads to ring aerials inside the liner pass through two of the ports to allow the gas to be ionized prior to each discharge. Specification 830,252 is referred to.