baber/WOPTO huggingface dataset:
Patent GB-391789-A (GB)
Title: Improvements in or relating to variable speed transmission mechanism
IPC: F16D41/00
Filed: 1931-09-03
Abstract: 391,789. Variable speed linkwork gearing ; links. OSBORNE, W., The Box, Bramhall Lane, Stockport. Sept. 3, 1931, No. 24748. [Classes 80 (ii) and 80 (iii).] Variable-speed gearing comprises transmission links or struts a<1>, a<2>, Fig. 1, connecting a driving member or members A<1>, A<2> to a driven member B<1>, the link being freely variable in length on the idle stroke but rigid in one direction on the power stroke. The members A<1>, A<2> are twin swash-plates carried on a driving-shaft A with equal and opposite inclinations which are varied in unison to vary the speed of a shaft B carrying the driven swash-plate Bl of fixed inclination. The links a<1>, a<2>, which both engage the plate B<1> and alternately engage the plates A<1>, A<2>, are adapted to reciprocate in apertures in a fixed frame D. In a development shown in Fig. 13, the links are struts numbered 1, 2 .. 9, 10. The struts 2, 8, 9 are rigid,. effecting power strokes to turn the plate B<1>, while the others are freely variable in length and idle. One form of link is shown compressed in Fig. 3 and extended in Fig. 4. There are feathered connections e, Fig. 3, which prevent four nuts El .. E4 from turning in the frame D. The nuts E<1>, E2 are right-handed, and the nuts E3, E4 left-handed, with threads of low pitch. The end nuts E<1>, E4 engage different singlescrewed sleeves F<1>, F<3>. The middle nuts E2, E<3> engage the same double-screwed sleeve F<2>. The sleeves F<1>, F<2>, F<3> are all feathered on a sleeve nut H connected to one end swivel link C. A screw J of steep pitch engaging the sleeve nut H is connected through a lost-motion spring box to the other end swivel link C<1>. The screws of low pitch jam to transmit thrust, or collapse, according as the spiral J is in a position to take the end thrust or is not in position. The spiral J is adjusted axially as required to make and break the link by turning a crown J<4> having a saw-tooth connection with a head J<1> on the spiral. This turning of the crown J<4> is effected by cam mechanism J<5>, J<6>, Fig. 1. The gearing is set for forward drive, neutral, and reverse by turning the cam J<6> relatively to the shaft B by the axial displacement of a control spiral N<1>. A modification is described in which links of this screw type are arranged radially round a driving variable-throw eccentric and serve to drive variably a star-wheel upon a driven eccentric. An hydraulic construction of link is shown in Fig. 7. Cylinders P<1>, p<2> are connected by a clip ring P so as to slide together. The cylinder P<2> carries one swivel end link C. A rod R<1> with two pistons R<2>, R<3> carries the other end link C<1>. The adjacent ends S<1>, S<2> of the cylinders are perforated, and the whole strut is rigid or collapsable according to how the cylinder P<1> is turned relatively to the other one. This relative turning is effected by a cam like the cam J<6>, Fig. 1, operating at O<4>, Fig. 7.
Patent GB-344766-A (GB)
Title: Improved means for the transmission of selector impulses or the like over phantomed lines
IPC: H04M17/02
Filed: 1930-08-19
Abstract: 344,766. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Aug. 19, 1930, No. 24831. Convention date, Aug. 20, 1929. [Class 40 (iv).] In working over phantomed lines, impulses of reversed current are applied to the line through a transformer and control a polarized relay at the distant end. As shown in Fig. 1, the impulse sender 1 controls a relay 2 to reverse the current through the transformer T. Preferably the primary circuit of the transformer and the circuit of relay 2 are closed in turn by the hook-switch, causing two preliminary current impulses of opposite senses to be sent over the line, the first setting the polarized relay 6 to its normal position if necessary, and the second operating the relay to its other position to initiate preselection. When the hook-switch is restored upon release, a final current impulse is sent to return the polarized relay to its normal position. Fig. 3 shows two lines L1, L2 with phantom connections, the transformers T1, T2 serving to couple the impulse circuits to the lines. The transformers T3, T<1>3 of the phantom circuit may be omitted.
Patent GB-920940-A (GB)
Title: Catamenial tampon
IPC: A61F13/20
Filed: 1959-07-20
Abstract: 920,940. Catamenial appliances. TAMPAX Inc. July 20, 1959 [July 21, 1958], No. 24832/59. Class 81 (2). A bat 15 of absorbent, fibrous material is highly compressed along spaced lines 20 before being less densely compressed into its final cylindrical form as a catamenial tampon. The highly compressed lines form areas of increased capillarity which assist in rapidly conducting fluid towards the interior of the tampon.
Patent GB-425277-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M4/14
Filed: 1933-09-11
Abstract: 425,277. Batteries. VENTRELLA, L., 35, Via Carlo Alberto, Turin, Italy. Sept. 11, 1933, No. 24919 /34. Divided out of 425,236 under which a Specification was laid open to inspection under Sect. 91 of the Acts, March 13, 1934. [Class 53] An accumulator electrode consists of a lead plate having a thickness of 2 to 3 m.m. and provided with ribs having an average thickness of 0À2 to 0À4 m.m. Fig. 1 shows in elevation and Fig. 2 in plan an electrode consisting of a lead plate 1 provided with vertical and horizontal bars 4, 5 between which the ribs 2 are located. Specifications 29273/97 and 119,100, [both in Class 53], are referred to. According to the Provisional Specification the thickness of the plate is between 1 and 3 m.m.
Patent GB-240881-A (GB)
Title: Improvements in and relating to automatic weighing apparatus
IPC: G01G11/00
Filed: 1925-10-06
Abstract: 240,881. Boulogne, B. Oct. 6, 1924, [Convention date]. Automatic-feed weighers. - In an automatic weighing-apparatus in which the material is weighed on a continuously moving carrier, the constantly oncoming material to be weighed is temporarily diverted from the weighing carrier while the load present on the carrier is being registered, said diverted material being added to the next charge, between which and the charge already weighed there exists a gap. As shown, a conveyer band 6 operated by a motor 9 is suspended from two weigh beams 1, 2, and the load thereon is counterbalanced by a pendulous resistant 8 connected to a registering device 21. The material is normally fed from a conveyer 19 down a shoot 18 on to the band 6. When said band is fully charged, the material is temporarily diverted by a plate 14 on to an auxiliary conveyer 12 and the load is registered. The conveyer 12 travels at about half the pace of the conveyer 6 so that a gap is formed between each two charges. The cycle of operations is governed by a cam-disc 16 which may be driven from the conveyer 19. The auxiliary conveyer 12 may be replaced by a tank or may be omitted, in which latter event the feed conveyer 19 is stopped during the registration of the load.
Patent GB-1116661-A (GB)
Title: Improvements in or relating to ventilators
Inventor: LAMBIE HOWARD RUSSELL
IPC: F24F7/02
Filed: 1964-06-16
Abstract: 1,116,661. Ventilators. COLT VENTILATION & HEATING Ltd. 14 June, 1965 [16 June, 1964], No. 24939/64. Heading F4V. A powered roof ventilator is provided with. a peripheral anti-entrainment flange 13 at the upper end of its discharge trunking 11 and a shallow dished shield 28 covering the flange 13, the resultant discharge opening 36 being downwardly directed. The flange 13 is carried by a non-return shutter assembly 14. The shield 28 has a portion 32 at one side of the ventilator parallel to the trunking, and at this side the flange 13 is narrower than on the other three sides. The wall portion 32 is hinged at 26 to arms 24 whose other ends carry a rod 38 engaged by a spring catch 39 mounted on the shield 28. Stay rods 50 are provided to retain the shield in its open position when required. A splash guard 40 is provided at the narrow portion of the flange 13.
Patent GB-1319875-A (GB)
Title: Synchronization of a serial memory
IPC: G11C21/00
Filed: 1971-04-19
Abstract: 1319875 Digital data storage RCA CORPORATION 19 April 1971 [26 March 1970] 24940/71 Heading G4C A storage system includes a storage channel having a nominal delay of T-t, in which t may vary. The output of the channel is connected to the input via a variable delay. The delay is controlled to provide a delay t so that the delay of the storage system is T. The control is exerted by a circuit responsive to synchronizing pulses of period 1/T and to the Start bit which accompanies the data word circulating in the system. The system may be used in the repetitive display on a c.r.t. of ASCII characters from a computer or keyboard. A data word is put in to or taken from the system via register 84, Fig. 1. Serial data from register 84 is passed back to the input of the register delay line 86, the delay of which may vary fortuitously, and variable delay 60. As the serial bits from delay 86 pass via sync. circuits 104 to variable delay 60, which is shift register, the position of the start bit in the register 60 is recorded by stepping a counter 61-64. The sync. circuits 104 and register 60 are controlled by timing pulses from a generator 10-24 which includes an oscillator. A timing circuit 90 passes sync. pulses (frame pulses) of period 1/T to the sync. circuits 104. When a sync. pulse occurs the stepping of counter 61-64 is stopped, the output of the counter then causing circuit 70- 72 to connect the stage of the register 60 that now holds the Start bit to the input of register 84 via logic stages 78, 80, 82. A circuit 91 controls the logic stages. If the Start input to circuit 91 is energized a Start bit is placed in the loop at such a time that it reaches about the middle of register 60 at the time that a sync. pulse occurs. If the erase input is energized the loop is opened to erase the data in the loop. A number of storage systems in parallel, each similar to that described, may be synchronized to remove skew. One of the systems acts as reference for the others, a sync. pulse common to each system being generated when the Start bit in a selected one of the systems reaches a certain point in the associated register.
Patent GB-812547-A (GB)
Title: Improvements in and relating to radio transmitter systems
Inventor: PHILLIPS GEOFFREY JOHN
IPC: H01P5/16
Filed: 1954-08-27
Abstract: 812,547. R.F. couplings. BRITISH BROADCASTING CORPORATION. Aug. 26, 1955 [Aug. 27, 1954], No. 25010/54. Class 40 (7). In a radio transmitter installation in which power is fed to an aerial system remote from the transmitter the radiation into the service area of delayed signals due to mis-match at the transmitter output and aerial input is substantially prevented. To achieve this object the transmitter drive unit 12 is arranged to feed a phaseadjusting circuit 13 having two outputs feeding output stages 14 and 15 respectively in quadrature. These stages are constructed to have substantially identical impedances and wavereflecting properties and their outputs are of equal power and in phase quadrature. Two transmission lines 20 and 20<SP>1</SP> couple them respectively to two separate aerial sections 21 and 211 designed to be fed by in-phase input signals. The lines 20 and 20<SP>1</SP> differ in length so as to provide the necessary in-phase inputs; the difference being #/4 in the embodiment shown. Waves reflected at the aerial section inputs and again at the transmitter outputs return to the aerial sections in antiphase and when radiated will not be received at or near ground level except at short range.
Patent GB-1249279-A (GB)
Title: Improvements relating to pivotal guide vanes
IPC: F01D17/16
Filed: 1970-05-22
Abstract: 1,249,279. Turbines. MOTOREN-UND TURBINEN-UNION MUNCHEN G.m. b. H. May 22, 1970 [May 23, 1969], No. 25024/70. Heading F1T. A pivotal stator guide vane 9 for a gas turbine has a shaft 7 supported in a bush 3 in the turbine casing 2 by means of helical multi-start thread like bearing surfaces 17 on the shaft. The surfaces 17 also define a helical path for cooling air which flows from an annular groove 16 in shaft 7 via the path to a further groove 18 and thence through ports 6 and recess 22 into the gas stream. A labyrinth 20 prevents cooling air leakage from groove 16 along shaft 7 in the opposite direction. A collar 8 on shaft 7 adjacent vane 9 is urged into engagement with an end face 3a of bush 3 by means of a spring 10 disposed between a washer 10a and an actuating lever 13 secured to end 12 of the shaft.
Patent GB-263948-A (GB)
Title: Improvements in variable electric condensers
IPC: H01G5/38
Filed: 1925-10-08
Abstract: 263,948. Spink, J. R., and Langley, J. B. Oct. 8, 1925. Condensers of the kind comprising a pair of telescoping metal cylinders separated by a sheet of dielectric and enclosed in an insulating casing, the inner member being in the form of a piston adapted to be displaced axially by a screw to vary the capacity, have the adjustable electrode and a supporting sleeve for the screw spindle split so as to form jaws whereby the spindle is resiliently gripped so as to steady the movement and form a good electrical contact. Two cylindrical electrodes 1, 2 are enclosed in an insulating casing 3 and separated by dielectric 12, the electrode 1 screwing into the casing and carrying an insulating disc 13 and terminal 14. The moving electrode 2 is adapted to be screwed along a steep-pitched, and preferably multi-threaded, spindle 5 rotatable in a sleeve 4, collars 7, 8 preventing axial movement of the spindle which is kept steady by a spring 9. The electrode 2 and preferably also the sleeve 4 are split at 16, 17 to form jaws adapted to grip the spindle resiliency and avoid back lash. A circular dial 20 is pivoted on a resilient bracket 19 whereby its milled edge is urged to engage a collet 21 of ebonite or the like on the spindle, whereby the dial is rotated with the spindle. An alternative indicator is in the form of a pin 10 on the electrode 2 extending through a slit in the casing 3 and serving also to prevent rotary movement of the electrode, although for this latter purpose the pin could be fixed in the casing and engage a groove 11 in the electrode. Fig. 5 shows a dual or balancing condenser comprising two oppositely movable electrodes 2 co-operating with fixed electrodes one of which is as in the previous form, whereas the other, 1<a>, screws on an insulating member 26 and carries a terminal 14<a>. In another form, two condensers, substantially as shown in Fig. 1, are placed one on each side of a forked supporting bracket, with an operating wheel located on the common spindle and between the prongs of the fork. For large capacity condensers a plurality of concentric cylinders may be used, with, according to the Provisional Specification means for adjusting individual ones relatively to one another for fine tuning.
Patent GB-1493999-A (GB)
Title: Purification of phosphoric acid
IPC: C01B25/234
Filed: 1975-06-12
Abstract: 1493999 Phosphoric acid purification HOECHST AG 12 June 1975 [6 July 1974 25 July 1974] 25201/75 Heading C1A Phosphoric acid is purified by dissolving the acid or an aqueous solution thereof in an organic solvent, which solvent is completely miscible with water, in a ratio by volume of acid to solvent of from 1:0À3 to 1:30; the solvent used has a boiling point above that of the water or the water-solvent azeotrope; the mixture is then heated at a temperature between the boiling point of the water or of the azeotrope and that of the solvent to distil off the bulk of the uncombined water and the resulting predominantly dehydrated phosphoric acid solution in the organic solvent is then separated from the precipitated residue. The solution of phosphoric acid may be admixed with one or more alkali metal compounds used in an amount of from one to three times the quantity theoretically required to bind the foreign anions present in the crude acid. The preferred alkali metal compounds are the phosphates, carbonates, sulphates or hydroxides of sodium or potassium. In a preferred method up to 8 weight per cent of sulphuric acid is added, based on the P 2 O 5  content of the acid. The residue obtained after removal of the phosphoric acid solution may be treated with sulphuric acid to provide a second phosphoric acid feed which is subjected to the same process described above. Phosphates may be obtained by treating the organic acid solution with an aqueous base solution. Preferred organic solvents are alcohols, glycols, ketones, esters and sulphur compounds, e.g. sulpholane and dimethylsulphoxide, the use of 3-methoxybutanol, diethyleneglycol, ethyleneglycol monoethylether, ethyleneglycol monobutylether, diethylene glycol monobutylether, ethyleneglycol monomethyl ether acetate and N-methylpyrrolidone is exemplified.
Patent GB-499299-A (GB)
Title: Improvements in rotating-wedge compensators
IPC: G01N21/43
Filed: 1938-08-31
Abstract: 499,299. Range-finders &c. ZEISS, C., [Firm of]. Aug. 31, 1938, No. 25443. Convention date, Sept. 9, 1937. [Class 97 (i)] In a deviator for optical measuring-instruments such as range-finders, comprising two prisms e, e rotatable about the same axis through equal angles in opposite senses so as to vary the angle of deviation of rays passing through the prisms, the prism mountings d are provided with radial extensions f which are equally inclined to the line bisecting the angle between the refracting edges of the prisms and bear at their extremities against surfaces u, at right-angles to the said bisector, of a member r displaceable parallel to the bisecting line. With this arrangement, equal displacements of the member r produce equal variations in the deviation produced by the prism. The member r is displaced by a screw s along guides p. For adjustment of its effective length, each arm f is made in two relatively slidable parts, the outer part consisting of a sleeve h terminating in a fork l within which is rotatably mounted a roller m bearing against the surface u and held in contact therewith by a spring v.
Patent GB-970438-A (GB)
Title: Drive for washing machines
IPC: D06F33/48
Filed: 1962-07-03
Abstract: 970,438. Change-speed gear. FICHTEL & SACHS A.G. July 3, 1962 [July 7, 1961], No. 25457/62. Heading F2D. [Also in Division D1] The shaft 2 of a two-speed pole-changing electric motor 1 drives a washing machine power shaft 7 through one of two multi-disc friction clutches 8, 9, depending on the axial position of a control-rod 13 slidable, against a spring 14, inside the shaft. The clutch 9 provides direct drive between the shafts 2, 7, and the clutch 8 a step-down ratio from a cage 11 mounting the planet wheels 5 of planetary gearing, having a sun-wheel 4 fast on the shaft 2 and a ring gear 6 fixed in an outer casing 3.
Patent GB-753505-A (GB)
Title: Improvements in gas turbines which are for a time mechanically driven in a directionopposed to their normal running direction
IPC: B63H21/16
Filed: 1953-09-15
Abstract: 753,505. Turbines. SOC. D'ETUDES ET DE PARTICIPATIONS EAU, GAZ, ELECTRICITE, ENERGIE SOC. ANON. Sept. 15, 1953 [Sept. 29, 1952], No. 25518/53. Class 110(3) In a gas turbine arranged to be temporarily driven mechanically in a direction opposite to that corresponding to its operation when supplied with driving gas, one or more fixed partitions are provided to reduce the tendency of the air driven by the turbine to escape radially and to compel the air to rotate in a chamber formed by the partitions at the outlet side of the rotor or of the last rotor in a multistage turbine. In the plant shown, comprising an ahead turbine A and an astern turbine B. having separate inlets 4, 5 furnished with control valves, and a common discharge 6, the casing wall 11 is curved inwardly at 12 to form the said partition. In a modification, the lateral chamber formed by the partitions is wholly closed, and the partitions have openings controlled by, say, a slide valve, the openings being uncovered only when the control valve in intake 5 is opened. The invention may be applied to the ahead turbine also.
Patent GB-716724-A (GB)
Title: A container having thermal insulating properties
IPC: A47J41/00
Filed: 1951-11-01
Abstract: <PICT:0716724/IV (a)/1> A thermal insulating container is formed of cellular polyvinyl chloride which is shape-retaining but yields elastically to stress so that the container contents may be deformed, e.g. ice cubes may be separated by pressing the container sides. Furthermore, the container is a single, moulded piece having a cellular core 10 covered by a tough film 12 which forms the smooth surface of the container.  A cover may be formed of the same material in the same manner, i.e. as described in Specification 714,606. Specifications 429,316 and 433,251, [both in Group XIII], also are referred to.
Patent GB-865412-A (GB)
Title: Improvements in or relating to working elements, for example resistance heating elements for use at high temperatnres in an atmosphere containing oxygen
IPC: H05B3/14
Filed: 1958-08-08
Abstract: 865,412. Electric heating resistances. SIEMENS-PLANIAWERKE AKTIENGESELLSCHAFT FUR KOHLEFABRIKATE. Aug. 8, 1958 [Aug. 14. 1957], No. 25610/58. Addition to 795,004. Class 39(3). In a working element, e.g. a heating resistor, as in the parent Specification, i.e. having a first zone composed at least in part of molybdenum-silicon alloy such as molybdenum disilicide normally operative at 1400- 1700‹C. and a second zone normally operative at 300-700‹C. of material other than molybdenum-silicon alloy, the second zone consists of titanium disilicide attached to the first zone by welding. The element is for use in an atmosphere comprising, oxygen. The first zone comprising a rod of molybdenum disilicide has its ends thickened for the welding on of titanium disilicide so that the temperature of the joint does not exceed 1350‹C. during use but is at about 1000‹C. The welding of the titanium disilicide takes place at above 1350‹C. for about a minute, and an intimate combination occurs at the fused and welded joint. An aluminium contact is fused on to the titanium disilicide, the working temperature of this joint being about 200‹C.