baber/WOPTO huggingface dataset:
Patent GB-340246-A (GB)
Title: Process for the production of light-sensitive films on metal, wood, and the like
IPC: G03C1/04
Filed: 1929-09-20
Abstract: 340,246. Photographic sensitive layers. MASA GES. ZUR HERSTELLUNG KœNSTLICHER OBERFL€CHEN, 4, Alexanderufer, Berlin. Sept. 20, 1929, No. 28607. Convention date, Oct. 8, 1928. [Class 98 (ii).] Sensitized plates, films, and papers; developing; ornamenting by photography.-A silver hologen lightsensitive composition is incorporated in a hard drying lacquer or varnish having a base of cellulose ester or cellulose acetate derivative. Silver bromide emulsion may be finely ground and incorporated in the lacquer or varnish. Gelatine or albumen may be used as the colloid vehicle and either these or the varnish may be coloured. Alternative lightsensitive solutions (including collodion emulsions) may be mixed with the varnish or lacquer to form a kind of emulsion. The sensitized varnish may be applied to metal surfaces for the reproduction thereon of wood-grain. The surface may be ground and polished before the photographic reproduction to bare the sensitive particles on the surface and render them accessible to the developer. To accelerate development and subsequent treatment a small quantity of a solvent of the varnish, such as alcohol, ether, amyl acetate or acetone, may be added to the developer and other photographic solutions. The Specification as open to inspection under Sec. 91 (3) (a) also refers to the incorporation of light-sensitive solid or liquid substances into raw material during the manufacture of paper, pressboard, compressed wood-meal, ceramic plates, artificial compositions and the like. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1471047-A (GB)
Title: Flexible light guide
IPC: G02B6/06
Filed: 1974-06-28
Abstract: 1471047 Light guides G NATH 28 June 1974 [29 June 1973] 28854/74 Heading G2J A flexible light guide, e.g. for an endoscope, comprises a single optical fibre 10 extending within a protective tubular shielding 18. At least one end of fibre 10 extends within the bore of a tubular end-fitting 14 which is made from a material, e.g. glass, which is fusible to the fibre, the extremity of the fibre 10 being fused to one end of end-fitting 14 while the remainder of the end portion of the fibre 10 is spaced from the wall of the bore of the end-fitting 14. In one embodiment, Fig. 1b, a homogeneous or clad-type fibre 10, e.g. of quartz glass, is fused at each thickened end inside an end-fitting 14  which is itself surrounded by a flexible liquidfilled 18, e.g. of ptfe, and rigid metal end-tubes 30 which may contain lenses 32. Inside tube 18 and surrounding the fibre 10 are provided glass spacers 20 which may be dielectrically coated. A flexible metal tube 26 may surround tube 18, metal rings being placed around tube 26 to define a safe minimum bending radius for the fibre. The ends of the fibre 10 may be polished flat. In a modification, Fig. 2 (not shown) the tube 18 is narrower and the flexible metal tube 26 and spacers 20 may be omitted. The rigid metal tube 30 is provided at the input end only and carries lenses; the exit end of the fibre is convex or concave to act as a lens. In another modification, Fig. 4a, the fibre 10a is a liquid filled capillary only one end of which is fused to its end-fitting 14, the other end being slidable inside its end-fitting 14. The fibre 10a is surrounded for most of its length by two coaxial flexible tubes 18, 18a which are spaced by a helical wire 44. The filling liquid is circulated through a heat exchanger by a pump entering the guide at 38 and leaving at 40. Liquid circulation and the free sliding of one end of the fibre within its suspension tube may be employed with a solid, homogeneous fibre.
Patent GB-941013-A (GB)
Title: Improvements in or relating to electrical measuring apparatus
IPC: G01R15/08
Filed: 1960-08-19
Abstract: 941,013. Local circuits for electric meters. SANGAMO WESTON Ltd. Aug. 19, 1960 [Aug. 20, 1959],No. 28858/60. Heading G1Q. A circuit for expanding the scale (by shifting the zero) of a D. C. measuring instrument 18 so as to cover only a desired range of A.C. to be measured comprises a Wheatstone bridge including at least one (as shown two) temperature sensitive resistance 39 as one arm, one diagonal being connected to the voltage 10 to be measured and the other to instrument 18, the arrangement being such that the bridge is balanced at the desired zero point of the meter and characterized in that a biasing A.C. potential also derived from 10 through a rectifier 42 and voltage regulator 43 is also supplied to the bridge to ensure that the meter will deflect below the desired zero point when the bridge is unbalanced by voltages lower than that corresponding to said zero point. The bridge is balanced for A. C. but D. C. from regulator 43 will flow through meter 18 in dependence on the D. C. unbalance of the system.
Patent GB-958824-A (GB)
Title: Improvements in or relating to the production of penicillins
IPC: C07D499/00
Filed: 1962-07-27
Abstract: An N-(amino substituted) acyl derivative of a 6-aminopenicillanic acid of formula: <FORM:0958824/C2/1> wherein R3 is hydroxy, C1-C6 alkoxy, benzyl or NR4R5 wherein R4 is hydrogen, C1-C6 alkyl, di (C1-C6) alkylamino C1-C6 alkyl, phenyl, benzyl, phenethyl, cyclohexyl or b -morpholinoethyl, R5 is hydrogen, C1-C6 alkyl, benzyl or cyclohexyl, R4 and R5 when taken together are tetramethylene, pentamethylene, -CH2-CH2-O-CH2-CH2 or -CH2-CH2-NH-CH2-CH2, and X is an amino-substituted acyl group having up to 12 carbon atoms having the formula: <FORM:0958824/C2/2> wherein R1 is hydrogen, phenyl, benzyl, phenethyl, alicyclic, indolyl, pyrollidinyl, alkyl or substituted alkyl wherein the substituent is C1-C6 acyloxy, C1-C6 acylmercapto, C1-C6 alkoxy, C1-C6 alkylmercapto, carbobenzoxy, allylmercapto, benzylmercapto, benzyloxy, C1-C6 acylamino, carbobenzoxamido, carboxy or carboxamido, R2 is hydrogen, C1-C6 alkyl, phenyl, cyclohexyl or benzyl, and R6 is a bivalent alkylene radical having from 4 to 6 carbon atoms which, when taken together with the carbon atom to which it is attached, forms a saturated alicyclic ring having from 5 to 7 carbon atoms, is prepared by reacting a solution in a reaction inert solvent, of the N-carboxy anhydride of an amino acid having the formula: <FORM:0958824/C2/3> with a neutral aqueous solution of 6-aminopenicillanic acid, a C1-C6 alkyl ester of 6-aminopenicillanic acid in a reaction-inert solvent, or a 6-aminopenicillanic acid amide in a reaction-inert solvent wherein the amide has the formula: <FORM:0958824/C2/4> at a temperature of from -25 DEG C. to 50 DEG C. and recovering the product therefrom.  The Specification describes the production of many penicillins of the above formula such as DL-a -amino-benzylpenicillin, D- and L-a -amino-benzyl-penicillins, the t-butyl ester of aminomethyl penicillin and penicillin amides and of salts formed by neutralizing the appropriate penicillin acid.
Patent GB-619150-A (GB)
Title: Improvements in and relating to clutches for motor vehicles, trailers and the like
IPC: G05G7/14
Filed: 1946-09-27
Abstract: 619,150. Operating clutches. PRACHAR, C. Sept. 27, 1946, No. 28995. Convention date, Sept. 15, 1939. [Class 80 (ii)] [Also in Group XXXII] The engaging stroke of a motor vehicle clutch is regulated by a hydraulic or pneumatic dashpot 1 having a piston 2 with an undercut bore 7 interacting with a projection 4 on the floor of the dashpot cylinder in such a manner that the clutch moves up to engagement quickly, engages slowly and then rapidly completes its stroke. The dashpot is shown connected between the clutch pedal 21 and the motor frame 18, but may be arranged between the frame and an intermediate point in the clutchoperating linkage. Movement of the pedal 21 downwards to disengage the clutch is allowed freely by one-way ball valves such as 8 in the piston head. Upon movement of the pedal 21 upwards the operative oil or other fluid at first passes freely to the upper side of the piston through the bore 7 and passages 6 until, at the point of clutch engagement, the cylindrical head of the projection 4 enters the registering neck 5 of the bore 7 which is then in communication with the lower side of the piston only through a bleed passage 9, adjustable by a screw 11 to control the rate of clutch engagement. When the clutch is fully engaged, the undercut conical part of the projection 4 comes opposite the neck 5 and allows a rapid completion of the stroke. A screwed connection 15 allows the position of the piston 2 to be adjusted relative to the dashpot cylinder to vary the cut-off point.
Patent GB-967860-A (GB)
Title: Improvements in resilient connecting systems
IPC: F16F1/371
Filed: 1961-08-14
Abstract: 967,860. Resilient mountings. LUXEMBOURGEOISE DE BREVETS ET DE PARTICIPATIONS. Aug. 14, 1961 [Aug. 12, 1960], No. 29284/61. Heading F2S. A resilient connecting member which is for highly flexible translatory movement between load-applying members, which for small relative displacements on either side of a mean position are maintained practically at a constant distance from each other and which has great rigidity in a direction normal to the relative movement, comprises two rigid plates 3 adapted to be fixed, e.g. to a machine, and have adhered to their interior faces resilient cushion elements 4, made e.g. of rubber, at least two rigid cylindrical bodies 5 being interposed between the cushion elements 4 normal to the plane of the plates 3 and the ends of the bodies 5 being of curved shape to permit rolling displacements thereof. A resilient mass 7 is bonded between the facing side walls of the bodies 5 and may fill the whole of the intervening space instead of providing the apertures 8 as shown.
Patent GB-711903-A (GB)
Title: Automatic shut-off nozzle
Inventor: CLAIR CAMILLE CLARE SPRANKLING
IPC: B67D7/48
Filed: 1950-11-29
Abstract: 711,903. Fluid-pressure servomotor systems; valves. TECALEMIT, Ltd. Feb. 21, 1952 [Nov. 29, 1950], No. 29289/50. Class 135 An automatic liquid shutoff device operable upon the attainment of a predetermined level of liquid in a tank comprises a main flow valve which is held open by liquid pressure acting on a diaphragm or the equivalent, and axially aligned discharge and receiving nozzles in the pressure liquid supply to the diaphragm whereby when the required liquid level is reached the jet of liquid passing between the two nozzles becomes submerged in the liquid in the tank resulting in a lowering of the pressure in the receiving nozzle sufficient to allow the valve to close. The device shown in Figs. 1, 2 is for fitting inside the top of a tank and has an inlet 4, an annular outlet 9 and a valve 12 connected to a diaphragm 17 and closed by a spring 16. Two discharge nozzles 23 are connected through passages (not shown) and a spring-opened auxiliary valve 37 to the inlet 4 whilst the two receiving nozzles 30 connect with chambers 11, 35 below the diaphragm 17 and an auxiliary diaphragm 36 connected to the auxiliary valve. Thus, when pressure is applied in the inlet 4 liquid passes through the valve 37 to the discharge nozzles and thence to the receiving nozzles to open the main valve and assist the spring 40 in keeping open the auxiliary valve. When the nozzles become submerged the lowering of pressure below the diaphragms results in the valve 12 being closed by the spring 16 and the valve 37 by pressure from the inlet acting through ducts 43 on the upper side of the diaphragm 36. The closing of the auxiliary valve isolates the nozzles from the inlet 4 so that if the liquid level in the tank falls below the nozzles the valve 12 is not re-opened until the pressure in the inlet 4 has first been released to allow the auxiliary valve to re-open. The auxiliary valve may be dispensed with in which case the discharge nozzles are connected directly to the inlet and the valve 12 re-opens whenever the liquid level falls below the nozzles. A modified device has a hand-lever 75, Fig. 7, for overriding the automatic operation. An auxiliary valve 67 loaded by a spring 69 and situated on the inlet side of the main valve 50 may be opened by the lever 75 to connect a discharge nozzle 94, Fig. 12, in a delivery tube 89 with the inlet. The receiving nozzle 95 communicates via passages 93, 60, 59 and a hollow piston rod 53 with a chamber bounded by a piston 52 and a moving cylinder 51 which mounts the valve 50. Thus, opening of the auxiliary valve is followed by opening of the main valve until the nozzles 94, 95 are submerged when the main valve is closed by a spring 50a. The nozzles are enclosed in a transverse tube 90 in the delivery tube. If, while the valve 50 is open, the lever 75 is released an abutment 86 pivoted to a lever 83 itself pivotally mounted at 84 and connected by a link 81 to the lever 75 permits the piston rod 53, piston 52 and valve 50 to move into closed position.
Patent GB-1416924-A (GB)
Title: Pressure-responsive instrument
IPC: G01L7/10
Filed: 1973-05-22
Abstract: 1416924 Pressure gauges SPRINGFIELD INSTRUMENT CO Inc 22 May 1973 [11 Aug 1972] 29400/74 Divided out of 1416923 Heading G1L [Also in Division F2]  The description is identical to the Parent Specification 1416923 but claims differ.
Patent GB-801399-A (GB)
Title: Method of enlarging solid cross-linked polymer bodies
IPC: C08F257/02
Filed: 1955-10-14
Abstract: Slightly cross-linked polymer bodies are enlarged by swelling to between 5 and 30 times their initial volume with at least one monomeric vinylidene compound and polymerizing the monomer present in the swollen polymer while the latter is immersed in a liquid medium which is not a solvent for the monomer or polymer. Optionally the swelling process may be conducted in the presence of the non-solvent. The polymer may be polystyrene cross-linked by electron bombardment; copolymers of styrene, ar-ethylvinylbenzene and divinylbenzene; ar-chlorostyrene, ethylvinylbenzene and divinyl-benzene; ar-vinyltoluene and divinylbenzene; vinyltoluene, ethylvinyl benzene and divinyl-benzene; styrene and butadiene-1,3; styrene and isoprene; vinyltoluene and butadiene; a -methyl styrene, styrene, ethylvinylbenzene and divinylbenzene; or methyl methacrylate, ethyl-vinylbenzene and divinylbenzene.  Specified monomers are vinyl acetate, styrene, chloro-styrene, vinyl toluene, methyl methacrylate, acrylonitrile, optionally with minor proportions of a polyolefinic compound, e.g. divinyl benzene or butadiene. Catalysts, e.g. benzoyl and lauroyl peroxides, and a ,a 1-azo-bisisobutyronitrile, dyes, lubricants and plasticisers may be added to the monomers.  The swollen polymer bodies may be suspended in water in the presence of starch, methyl cellulose, bentonite, copper sulphate and a water-soluble urea-ethylene oxide-formaldehyde reaction product, and the suspension stirred to prevent bonding.  The process may be repeated to further enlarge the bodies.
Patent GB-859883-A (GB)
Title: New design and arrangement of keys in keyboards of pianoforte, piano-accordion, organ, and such-like instruments
IPC: G10C3/12
Filed: 1958-09-15
Abstract: 859,883. Keyboard musical instruments. WORMALD, G. Sept. 11, 1959 [Sept. 15, 1958], No. 29444/58. Class 88 (2). All the keys are the same shape and size and are alternately white and coloured, the colours being in a sequence which is repeated at each octave. The backs of the keys are blackened or coloured to form a series of arches, each arch spanning one octave.
Patent GB-604478-A (GB)
Title: Improvements in or relating to devices for dispensing a cold mixed beverage
IPC: B67D1/08
Filed: 1945-11-06
Abstract: 604,478. Refrigerators. DOLE VALVE CO. Nov. 6, 1945, No. 29492. Convention date, Dec. 28, 1944. [Class 29] [Also in Group XVIII] An apparatus for dispensing cooled mixed drinks of a syrup and carbonated water comprises a casing with double walls 10. 11, the space between which is filled with insulating material, a container 14 for syrup within the casing and a spiral pipe 28 for carbonated water surrounding the lower portion 27 of the container. One end 19 of the pipe communicates with a source of carbonated water and the other end 20 with a discharge head 17, which also communicates with the container 14 so that when the valve mechanism 24 of the discharge head is operated by an external handle, both liquids are discharged. The casing 11 is filled with ice and water which cools the syrup and carbonated water by circulating about the container 14 and spiral 28. The upper part 26 of the container 14 is preferably rectangular and the part 27 is surrounded by the spiral 28 cylindrical and of a diameter smaller than either dimension of the upper part so that the spiral 28 is contained in the space defined by the planes of the walls of the upper part. The spiral 28 is supported and spaced from the container by angle brackets 29 welded to the container and having grooves 30 to accommodate the inner edges of each turn of the spiral, the cross-section of which is a flat oval with the long axis horizontal. In a modification a number of concentric spirals are provided, the inner or innermost only being supported directly by the brackets 29 and the cross-section being a flat oval with the long axis vertical. Removable lids 13, 15 are provided for the casing and container.
Patent GB-391846-A (GB)
Title: Improvements in and relating to rate of revolution or speed indicators
IPC: G01P1/10
Filed: 1931-10-23
Abstract: 391,846. Mercury and other conducting-liquid switches ; rotary distributers. CARTER, B. B., 12, Carew Road, Ealing, London. Oct. 23, 1931, No. 29503. [Class 38 (v).] Mercury switches actuated from a speed-moved centrifugal arrangement to operate a follow-up motor actuating speed-indicating apparatus are employed of the kind shown in Figs, 5, 6, and 7 of Specification 391,850. A master mercury switch for ensuring that speed indicating only takes place at speeds above an adjustable minimum is similar to that shown in Fig. 8 of Specification 391,850, the conducting sleeve 29, Fig. 6, being longitudinally adjustable in the pivoted screw-threaded support 30.
Patent GB-308763-A (GB)
Title: Improvements in rail lubrication for railways
IPC: B61K3/02
Filed: 1928-10-12
Abstract: 308,763. Teindas, J., Monfort, H. J. F., and Riboulet, J., (Assignees of Compagnie du Chemin de Fer de Paris Ó Orleans). March 31, 1928, [Convention date]. Force-feed lubricating; lubricant conveyed by fluid.-During the passof a locomotive over a curved track, lubricant is supplied automatically from the locomotive to the inner face of the flange of the outer rail. Oil is forced through a pipe H depending into an air-tight oil tank mounted on the underframe by compressed air supplied through a pipe G. The pipe H leads to a jet J, Fig. 4, which is also supplied with compressed air from the tank through grooves M, whereby an oil spray is produced in a pipe N, which is connected to pipes P, Q having nozzles adapted to discharge on to the inner faces of the rail flanges. The supply to the pipes P, Q is controlled by a three-way cock 0 actuated by an arm S connected to the main frame by a rod R. when rounding a curve, the displacement of the underfame relative to the main frame causes the cock 0 to be moved so as to deliver the lubricant spray to one or other of the pipes P, Q, according to the direction of the curve.
Patent GB-1255909-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D34/63
Filed: 1968-11-27
Abstract: 1,255,909. Rotary scythe mowers. TEXAS INDUSTRIES Inc. 27 Nov., 1968 [4 Dec., 1967], No. 29542/71. Divided out of 1,255,163. Headings A1F and A1P. Two rotary scythe mowers 108, 113 are mounted on tractor 107, one at the front and the other extending sideways from a rear support about which it can pivot through 180 to an alternative position or merely rearwards should it meet an obstacle which it cannot overcome. The two rotating drums 69 of the side mower are mounted by their shafts 118 below hollow box section beam 114 and are driven via level gears 119, 120 from shaft 121 extending through beam 114. Shaft 121 is driven via bevel gears 122, 123, shaft 115 and bevel gears 131, 132 from a p.t.o. at the rear of the tractor. Beam 114 is pivotally mounted on shaft 115 between semi-circular plates 116 projecting rearwards from support frame 117 which is attached by a 3-point lifting linkage to the rear of the tractor. The plates 116 have corresponding recesses 126 at intervals around their periphery. A locking pin 129, connected to a bracket within the beam 114 which is urged towards the plates 116 by springs 128, engages corresponding pairs of recesses in the plates to locate the mower in the desired position. The spring action permits the locking pin to become disengaged when a large turning force occurs. The locking pin is eccentrically mounted and has a handle 127 by which it can be turned manually to disengage it. A ground engaging support 124 is fitted via adjusting screws 75 at the free end of beam 114. The front mower is of similar construction but cannot turn and is mounted centrally on its 3-point linkage.
Patent GB-1388268-A (GB)
Title: Benzodithiapyrones
IPC: C07D495/04
Filed: 1971-06-24
Abstract: 1388268 Dioxobenzodithiapyran - dicarboxylic acids FISONS Ltd 25 May 1972 [24 June 1971] 29573/71 Heading C2C Novel dioxobenzodithiapyran - dicarboxylic acids of the general formula wherein an adjacent pair of P, Q, R and T forms a -CO-CH=C(COOH)-S- group and the remainder of P, Q, R and T each represent a hydrogen or halogen atom, an alkyl or alkoxy group optionally substituted by a hydroxy, alkoxy or aryl group or a halogen atom, an alkenyl, alkenyloxy, amino, mono- or di- C 1-6  alkylamino, nitro, hydroxy, acyl or aryloxy group or an aminoalkoxy group optionally substituted by a C 1-6  alkyl group, and pharmaceutically acceptable salts, esters and amides thereof are prepared by cyclizing a benzene-bisthiofumaric acid of the general formula wherein an adjacent pair of P<SP>1</SP>, Q<SP>1</SP>, R<SP>1</SP> and T<SP>1</SP> forms a -CO-CH=C(COOM)-S- group or represents a hydrogen atom and a group and the remainder of P<SP>1</SP>, Q<SP>1</SP>, R<SP>1</SP> and T<SP>1</SP> each have the same significance as the remainder of P, Q, R and T, and M is a hydrogen or alkali metal atom, followed optionally by conversion of a resulting acid to a salt thereof or of a resulting salt to the free acid or another salt, or by conversion of a resulting acid or salt to an ester or amide. Benzene - bis - thiofumaric acids of the second general formula above are prepared by reacting a thiophenol of the general formula wherein P<SP>2</SP>, Q<SP>2</SP>, R<SP>2</SP> and T<SP>2</SP> are as P<SP>1</SP>, Q<SP>1</SP>, R<SP>1</SP> and T<SP>1</SP> except that an adjacent pair of P<SP>2</SP>, Q<SP>2</SP>, R<SP>2</SP> and T<SP>2</SP> may represent a hydrogen atom and a -SM group, with acetylene-dicarboxylic acid or an ester or salt thereof under alkaline conditions, followed, if necessary, by hydrolysis. Pharmaceutical compositions, which inhibit the release and/or action of pharmacological mediators which result from the in vivo combination of certain types of antibody and specific antigen, comprise, as active ingredient, a dioxobenzodithiapyran-dicarboxylic acid of the first general formula above or a pharmaceutically acceptable salt, ester or amide thereof, in combination with a pharmaceutically acceptable adjuvant, diluent or carrier.