baber/WOPTO huggingface dataset:
Patent GB-1355943-A (GB)
Title: Pyronorifamycins
IPC: C07D498/22
Filed: 1973-02-16
Abstract: 1355943 Pyrono-rifamycins GRUPPO LEPETIT SpA 16 Feb 1973 [27 March 1972] 7746/72 Heading C2A Novel rifamycin derivatives having the Formula (I)  and the corresponding 25-desacetyl and 16, 17, 18,19,28,29-hexhydro compounds, wherein R is -OH, C 1  to C 4  alkyl or C 1  to C 4  alkoxy, are prepared by reacting 3-formyl-rifamycin SV or the corresponding desacetyl or hexahydro compound, with a compound of Formula (II) wherein R is as above and R 1  is -CN, -COOH or -COOR 3  where R 3  is an aliphatic straight C 1  to C 4  chain. The reaction is a cyclization whereby the H 2 C- group of the compound (II) condenser with the 3-formyl group followed by condensation of the R 1  group with the 4-OH group of the rifamycin, water, ammonia or alkanol being eliminated according to the nature of R 1 . The reaction is preferably performed in organic solvent in the presence of a basic catalyst (e.g. alkali metal acetate, ammonia or an amine). The inventive compounds have antibacterial, anti-viral and anti-cancer activity, and may be mixed with a pharmaceutical carrier or diluent to provide a pharmaceutical composition.
Patent GB-422749-A (GB)
Title: Improvements in knitted fabric and means for making the same
IPC: D04B25/02
Filed: 1934-03-12
Abstract: 422,749. Knitting. DRESDNER STRICKMASCHINENFABRIK IRMSCHER & WITTE AKT.-GES., 31, Tharandter Strasse, Dresden, Germany. March 12, 1934, No. 7768. Convention date, March 10, 1933. [Class 74 (ii)] A knitted fabric has warp threads 16, 17 running diagonally and in contrary directions throughout the fabric, each loop being formed from a single thread. The thread-guide rings 9, 10 are rotated continuously in opposite directions, and each ring has half as many apertures as there are needles. The bobbins 12, 13 for the threads 16, 17 are carried by concentric rings 5, 6, gearing with a pinion 11 so as to be rotated in opposite directions.
Patent GB-720834-A (GB)
Title: Coated welding electrode
Inventor: WASSERMAN RENE DAVID
IPC: B23K35/365
Filed: 1953-03-20
Abstract: A coated welding electrode has a stainless-steel core of the composition : chromium 17-20, nickel 8-10, manganese 1-3, silicon 0-3, carbon 0.05-0.3 per cent; iron and impurities balance, with a coating thereon of the composition : calcium fluoride 5-7.5, calcium carbonate 7.5-12.5, titanium dioxide 20-25, calcium silicate 5-7.5, chromium metal powder 35-45, ferro silicon alloy 5-10 parts by weight, with or without a binder, e.g. starch, alkali metal or silicate.  The core may contain molybdenum titanium and columbium totalling less than 1 per cent.  An example of an electrode has a core of the composition : chromium 19, nickel 9, manganese 2, carbon 0.15 per cent; iron and impurities balance with a coating of the composition: calcium fluoride 6, calcium carbonate 10, titanium dioxide 23, calcium silicate 6, chromium metal powder 40, ferro silicon alloy 7 parts by weight.  Sodium silicate solution was added to make a paste.
Patent GB-1065473-A (GB)
Title: Diversity receiver system
Inventor: CRONBURG CLAUDE IRVING LEE
IPC: H04B7/12
Filed: 1966-02-23
Abstract: 1,065,473. Diversity reception systems. WESTERN ELECTRIC CO. Inc. Feb. 23, 1966 [March 3, 1965], No. 7834/66. Heading H4L. In a diversity reception system comprising first and second receivers, first means are arranged to couple the first receiver to an output circuit when the signals received by that receiver have a selected parameter higher than a predetermined reference level, and second means couple to the output circuit that receiver in which the selected parameter is the higher, the coupling by the second means being effected when the selected parameter of the signals received by the first receiver is lower than the reference level. In the frequency diversity system described, channel A (receiver 10) is designated as the preferred channel. The radio receivers 10, 12 are fed from a common aerial and a portion of their outputs are fed to pilot monitors 18, 20, respectively, which select a pilot signal from the baseband output and provide a D.C. signal whose amplitude is a measure of the pilot signal level. The main outputs of receivers 10, 12 are supplied to the transfer contacts of a relay K4 through which the selected signal is connected to the output circuit 26. The normal AGC signals are supplied to a differential amplifier 32 which controls a Schmitt trigger 34 operating a relay K3 and the AGC signal from receiver 10 also is supplied to a differential amplifier 36 where it is compared with a reference voltage from source 38 and operates a relay K6 via Schmitt trigger 36 when the AGC signal exceeds the reference voltage. The pilot monitors 18, 20 also control relays K1, K2 via Schmitt triggers 42, 44 respectively. The logic circuit is shown in Fig. 1A and is such that if the pilot signal is absent from one receiver a switch is made to the other regardless of the performance indicated by the AGC voltages, but if both pilot signals are present or both are absent selection is on the basis of the levels of the received signals. However, if the preferred receiver 10 is providing an output greater than the reference level, this output is taken regardless of the performance of receiver 12, if receiver 10 falls below this threshold, receiver 12 is substituted, and if the performance of both receivers deteriorates, that providing the better signal is selected.
Patent GB-370161-A (GB)
Title: Improvements in connection with ventilating systems
IPC: F24F11/04
Filed: 1931-03-14
Abstract: 370,161. Ventilating. MUSGRAVE, J. L., CRITTALL, R. G., and CRITTALL & CO., Ltd., R., 43, Bloomsbury Square, London. March 14, 1931, No. 7903. [Class 137.] Valves, actuating.-In a ventilating system in which the flow of air is automatically controlled by dampers so as to allow it to pass through two or more ducts at predetermined intermittent periods, the controlling means comprises a revolving cylindrical drum damper A provided with a plurality of ports a<1> in its periphery and mounted in the main air duct at right-angles to the flow of air. The damper is keyed at one end at a<8> to a shaft a<2> at the middle of which is mounted a worm wheel a<3> driven by worm spindles a<4> carrying propellers a<5> rotated by the flow of air from the main duct B, through the drum damper to the branch ducts b<1>. The worm spindles are supported in a housing a<1> which is mounted in ball bearings on the shaft a2 and prevented from rotating by a tubular shaft b<2> secured at a<9> to the main duct B. Alternatively the damper may be rotated by an electric motor, clockwork, or other mechanical means.
Patent GB-350040-A (GB)
Title: Process for treating aqueous bituminous dispersions
IPC: C08L95/00
Filed: 1930-03-11
Abstract: The coagulation of bituminous dispersions, after application to roads or other surfaces to be coated, is facilitated by the addition thereto of substances which, while having no action on the dispersions in bulk, react with the carbon dioxide of the atmosphere on spreading to form a coagulating agent.  Suitable substances are alkali aluminates, plumbates, and zincates which by the reaction form the metal hydrates constituting the coagulating agents, together with sodium carbonate.  Examples of the invention are as follow:--(1) Mexican asphalt is mixed with 0,5 per cent naphthenic acid and dispersed in water containing slightly more than the equivalent of sodium hydroxide; 0,5-2,0 per cent of a stabilizer such as gelatine, casein, or tannin is then added, followed by a 10 per cent solution of sodium aluminate in quantity equivalent to 0,01-2 per cent of the reagent reckoned on the asphalt.  (2) The same quantity of reagent is added to a dispersion prepared with clay, bentonite or the like as dispersion agent.
Patent GB-473756-A (GB)
Title: Improvements relating to aircraft undercarriages with resilient wheel units
IPC: B64C25/00
Filed: 1936-03-16
Abstract: 473,756. Aircraft alighting - gear. DOWTY, G. H. March 16, 1936, No. 7908. [Class 4] Aircraft alighting-gear includes an internally-sprung landing-wheel which contains a shock-absorber which is disposed substantially horizontally in the wheel or the relatively movable parts of which are connected to the sides of a triangular frame, the arrangement being such that vertical deflection of the wheel under landing load is substantially greater than shock-absorber deflection. As shown, a wheel-rim 41 has a conical flange 42 and an annular end plate 43 which house the wheel bearing comprising a bush 44 and a hollow spindle 45. The spindle 45 is rigidly secured to a pair of laterally disposed links 46, 47 which are pivotally attached to adjustable clips 49 clamped to the undercarriage leg 50. A hollow piston 51 is rigidly mounted in the hub, which may be inflated in order to vary the characteristic of the shock-absorber by compressed air admitted through a union 52. A floating piston in the piston 51 separates the air from oil in a cylinder 54 formed with trunnions 55 which can move in horizontally disposed guideways 55A and are secured to a pair of links 56 which pass with clearance through the links 46, 47 and are pivoted to an adjustable clip 58 clamped to the leg 50. Throttling passages or valves 51A are provided in the piston. Specification 473,768 is referred to.
Patent GB-547375-A (GB)
Title: Improvements in and relating to flexible couplings for pipes and the like
IPC: F16L55/04
Filed: 1941-06-24
Abstract: 547,375. Pipe couplings. METALASTIK Ltd., BARRETT, A. G., and GOLDSCHMIDT, M. June 24, 1941, No. 7925. [Class 99 (i)] An elastic pipe coupling serving to prevent the transmission of sound along the pipe comprises a rubber body 6 having moulded therein metallic rings 7 formed with holes to take the studs 9 for attaching them to the flanges 14 of the pipes, the rings having metallic contact with the pipes only through the studs. Preferably ribs 16 are formed on the ends of the rubber body around the stud holes and around the body. In a modification the rubber body is formed at each side with annular recesses into which the rings 7 are forced. The flanges 14 of the pipes at opposite ends of the rubber body may be connected together by flexible straps, through which also the studs 9 pass. These straps may be of canvas impregnated with rubber. Specifications 487,780 and 519,773 are referred to.
Patent GB-898553-A (GB)
Title: Display device for posters
Inventor: MILLS JOHN WALTER
IPC: G09F15/00
Filed: 1961-03-04
Abstract: 898,553. Notice boards. MILLS & ROCKLEYS Ltd. March 4, 1961, No. 7984/61. Class 3(2). A notice board comprises upper and lower flanged members 10, 10a, 10c and 11a, 11b, 11c which are secured to a wall 12 and detachably receive a marginal frame 14a, 14b, 14c for the display panel 13, the frame being secured to the member 10c by a dowel 15 and to the members 11b, 11c by screws 17. The board may be adjustably mounted on one or more posts and provided with one or more roof supporting members, see Figs. 6 and 7 (not shown). A number of boards may be connected to brackets to form a composite display, see Figs. 8, 8a, 9 and 9a (not shown).
Patent GB-526368-A (GB)
Title: Improvements in or relating to electric circuit arrangements comprising a valve adapted simultaneously to generate and amplify oscillations of different frequency
IPC: H03F3/66
Filed: 1939-03-14
Abstract: 526,368. Valve circuits modulating systems. FIDES GES. FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN. SCHUTZRECHTEN. March 14, 1939, No. 8187. Convention date, March 15, 1938. [Class 40 (v)] In a circuit in which a single valve is used both to generate an oscillation and amplify an oscillation of a different frequency, the output' circuit from which the amplified oscillation is obtained is so arranged that the generated oscillation is balanced out. The valve V generates a carrier frequency by virtue of the back coupling over transformer T2, the primary of which is tuned. The magnitude of the resultant feed back voltage on the grid of valve V is regulated by the tapping X on the secondary of transformer T2. Transformer T3, which is supplied with the modulating frequency, and rectifiers M form a carrier suppression modulator, so that side-band oscillations are supplied to the grid of V and amplified. The rectifiers M also act to limit the amplitude of the generated carrier. The secondary of transformer Tl in the valve anode circuit is connected in series with a second secondary winding of transformer T2 in such a fashion that the carrier frequency is neutralized and side-bands only are fed to the filter F which selects the required side-band for transmission. Figs. 2, 3 and 4 (not shown) are modified arrangements in which the carrier frequency is suppressed by means of a bridge output circuit. A modified form of carrier frequency feed-back circuit is employed in Fig. 4 (not shown). Fig. 5 (not shown) is a demodulating arrangement very similar to the arrangement of Fig 3. Specifications 407,404, 473,042, 485,993 are referred to.
Patent GB-123658-A (GB)
Title: Improvements in Valve Mechanism for Internal Combustion Engines.
IPC: F01L1/26
Filed: 1918-05-16
Abstract: 123,658. Elliott, A. G., Southern, J., and Rolls-Royce, Ltd. May 16, 1918. Valve gear.- Three or more valves are located in a curved cylinder head with their axes inclined towards the axis of the cylinder. In the construction shown in Fig. 1, four valves, two inlet and two exhaust, are each actuated by a rocking-lever d which is engaged by a camactuating tappet e<5> sliding in the cover e<2> of a casing enclosing the cam-shaft. A modified construction is described in which a single tappet actuates two rocking-levers, the two remaining levers being actuated by separate tappets as in the construction shown in Fig. 1. A sparking- plug is inserted in an inclined position in the cylinder head, the cam-shaft being displaced to one side of the cylinder axis to permit access to the plug. Reference has been directed by the Comptrollerto Specification 141,949.
Patent GB-116164-A (GB)
Title: Improvements in Self-laying Endless Track Vehicles.
Inventor: GARNER HENRY
IPC: B62D55/10
Filed: 1917-06-11
Abstract: 116,164. Garner, H., Garner, J. P., and Parker, W. J. June 11, 1917. Endless-track vehicles.-Each track frame 1 consists of upper and lower girders connected to the chassis by a pivot 3 and is connected at the front and rear to the track frame on the other side of the vehicle by transverse members pivoted centrally to the chassis. Each end of the track frame is provided with vertically sliding members 13 which move in guides 12 secured to a transverse member 10 of the chassis frame. A spring 14 is connected centrally by a pivot 15 to the member 10 and at its ends is connected by double shackles 16 to the track frames. The spring 14 may be replaced by a rigid beam, but in this case springs may be placed between the ends of the beam and the track frames, or between the track frames and the chassis frame'. Rubber buffers 21 may be provided for absorbing shock.
Patent GB-1333357-A (GB)
Title: Method and apparatus for producing magazines or the like
IPC: B65H39/04
Filed: 1972-02-23
Abstract: 1333357 Delivering sheets HARRISINTERTYPE CORP 23 Feb 1972 [7 May 1971] 8402/72. Heading B8B Magazines are made up by collating into compartments on a conveyer 24, Fig. 1, signatures fed from a plurality of pockets 22a-22n, each pocket storing a set of identical signatures, the arrangement being such that the magazines are made up of different combinations of signatures, signatures being fed into any one compartment only from selected pockets in response to data concerning the subscriber who is to receive the magazine. For example, ten pockets may be programmed to feed signatures into every magazine, while four are programmed to feed only into selected ones. Data as to geographical location, income or other criteria in respect of each subscriber is recorded on a control tape which is read by a computer 36 which through electrical outputs 70 controls the feed from the pockets by means such as controlling the vacuum to separators. Subscribers who are to receive similar magazines are recorded in succession on the tape so that the feed instructions can remain the same for a plurality of cycles, the computer having a counter set to the number of such subscribers. The collated signatures are fed to a binder, trimmer and labeller. In the event of double feed or absence of feed, a caliper detector roller 94, Fig. 11, actuates one of two contacts 98 to disable the remaining pockets. Incorrectly applied covers by the binder 26 are also detected and cause rejection of the magazine. The labelling device 30 is also controlled by the computer so as to apply the correct label to a passing magazine.
Patent GB-1042071-A (GB)
Title: Improvements in frequency discriminators
IPC: H03D3/08
Filed: 1964-02-28
Abstract: 1,042,071. Frequency discriminators. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Feb. 28, 1964 [March 1, 1963], No. 8432/64. Heading H3A. A frequency discriminator comprises a bridge circuit formed by two equal input capacitors C 1  in arms AC, AB which present a high impedance to the input signal, a crystal CQ in arm BD which has zero impedance at the frequency defining one of the limits of the discriminator pass band, an inductance LO in the diagonal BC which resonates with the input and crystal capacitors at the frequency defining the other limit and a variable capacitor C2 in arm CD which is adjusted to be equal to the crystal capacitance at the centre frequency of the pass band. The input is applied across terminals A, D and the terminals C, B are connected to an output circuit via opposed diodes D 1 , D 2 .
Patent GB-706339-A (GB)
Title: Improvements in or relating to brush gear for three phase commutator motors or the like
IPC: H02K23/18
Filed: 1951-04-11
Abstract: 706,339. Brush-gear for dynamo-electric machines. SIEMENS - SCHUCKERTWERKE AKT.-GES. April 11, 1951 [July 28, 1950], No. 8469/51. Class 35 The oppositely movable brush groups of an A.C. commutator motor are attached to arms 2, 3 rotatable about but on opposite sides of the motor axis 1 and connected by links 7, 8 to operating arms. 5, 6 on the same side of their pivotal axis 4, so that when the operating arms are rotated together in the same direction, the brush groups move in opposite directions in the usual way. It is also described how the brush rockers are mounted on ball races concentric with the motor shaft.
Patent GB-720854-A (GB)
Title: Improvements in and relating to rail chairs
IPC: E01B9/40
Filed: 1953-03-27
Abstract: 720,854. Rail chairs. NAAMLOOZE VENNOOTSCHAP MACHINEFABRIEK EN IJZERGIETERIJ HOLLAND-BERGEN OP ZOOM. March 27, 1953 [April 3, 1952], No. 8503/53. Class 104 (2). A rail chair has vertical rail-base locating steps 7 and a cavity 4 which extends in the longitudinal direction of the sleeper and is provided with a transversely arched inner top wall 5. The arching has a radius of curvature r equal to about one half the width b of the rail-supporting face of the chair. The rail 3 is secured to the chair by means of clamping plates 6 and bolts with T-heads 8 inserted through openings 10 to lie below the steps 7 or by resilient spikes. One or more longitudinal ridges or partitions and transverse partitions may be provided in the cavity 4.
Patent GB-361239-A (GB)
IPC: B21D5/06
Filed: 1931-03-20
Abstract: 361,239. Rolling. SEIFERTH, H., 35, Kolumbusstrasse, Oberkassel, D³sseldorf, Germany. March 20, 1931, No. 8591. Convention date, July 15, 1930. [Class 83 (iv).] In rolling sheets, plates, strips, &c. with transverse projections or indentations by a roll and platen, the pattern being on the platen, the linear speed of the platen is greater than the peripheral speed of the roll.
Patent GB-1156616-A (GB)
Title: Improvements in Suspension Document Files
Inventor: LENNARTZ WALTER
IPC: B42F15/00
Filed: 1967-02-23
Abstract: 1,156,616. Suspension files. W. LENNARTZ. 23 Feb., 1967 [25 Feb., 1966], No. 8658/67. Heading B6E. A suspension file, having a front cover 2, Fig. 1, and a rear cover 1 joined together by a spine 3, is made from a tubular blank of transparent plastics material, the blank having walls 5, 7, Fig. 3, provided with thickened portions 6, 8, which when folded longitudinally about fold lines 10, 11, respectively, define the spine 3 composed of four layers and the covers 1, 2, Fig. 2, each composed of portions 5<SP>1</SP>, 7<SP>1</SP> and 5<SP>11</SP>, 7<SP>11</SP>, respectively, whereby a filing band 16 which may be of metal or a plastics material is attached by means of holes 14 or thermo-welded to the extension which is integral with thickened portion 8. The file is completed by punching out a recess 21 to define a suspension nose 22 and thermo-welding the area 23 around the recess 21 to reinforce the suspension nose. Welding of transverse edges 18, Fig. 1, byseams 19, 20 produces a pair of pockets between the respective covers, which pockets may be used either for identification purposes in conjunction with coloured sheets or filing of loose, unperforated sheets. By thermo-welding the spine 3, Fig. 1, along a line 25, the spine 3 is divided into four pockets, which may be used for insertion of index strips or coloured identification strips. These strips may also carry the index data.
Patent GB-1179463-A (GB)
Title: Process and Device for Controlling the Contrast Balances of the Cinematographic Colour Films and other such Photosensitive Materials
Inventor: CRACIUNESCU CONSTANTIN
IPC: G03B27/72
Filed: 1967-02-23
Abstract: 1,179,463. Improvements in colour balance. COMITETUL DE STAT PENTRU CULTURA SI ARTA. Feb. 23, 1967, No.8712/67. Heading G2C. The contrast characteristic of each of the three components of a multi-component colour film can be modified separately, so as to form a better balance with the others, by being subjected to illumination in which the intensity of each of the three colour components forming the light source can be separately controlled. The illumination takes place after the latent image has been formed, and is maintained for at least ten minutes. Fig. 2 (not shown) is a graph illustrating how the contrast balance can be improved by the method of the invention. Red, blue, and green light respectively is provided by three different sources or groups of sources, controlled independently (e.g. by adjustable voltages), and the distribution is such as to provide as uniform illumination as possible. Fig. 1 (not shown) is an arrangement in which cinematograph film is run to and fro over conveyer rollers past the light sources.