baber/WOPTO huggingface dataset:
Patent GB-711192-A (GB)
Title: Improvements in hydraulic servo-motor drives
Inventor: KULIKOFF WALDEMAR
IPC: F15B11/08
Filed: 1952-05-13
Abstract: 711,192. Engine valve gear. STlERLEN, R., [trading as ROTENBURGER METALLWERKE R., STIERLEN, KOMMANDITGES]. May 13, 1952, No. 12115/52. Class 122(2) [Also in Groups XXVIII, XXIX and XXXI] High-pressure medium for an hydraulic motor is generated and controlled by a high-pressure pump driven by a low pressure medium in combination with corresponding high-pressure and low pressure control members. The low pressure medium, such as compressed air in a tank 10, is supplied via a conduit 11 to a chamber 12 of a normally closed valve 22. When either valve stem 15 or 16 is depressed, air flows from chamber 12 via chamber 13 and passage 28 into the valve of a control mechanism 29, which in the position shown in Fig. 2 delivers the air to the left-hand face of the large part 31 of the pump piston which has smaller parts 33, 34. The piston moves to the right so that liquid is drawn in through a valve 43 by the part 33 and is delivered by the part 34 through a valve 46 and conduit 47 to a valve casing 23, until the part. 31 moves a rod 40 which turns a pivoted lever 42 and shifts the valve of mechanism 29, which shifting turns a lever 41 and moves a rod 39 into the cylinder 32. Air is then supplied to the right hand side of cylinder 32 and the piston moves to the left, liquid is drawn in through valve 44 by the port 34 and is supplied as the high pressure medium through valve 45 to conduit 47 and valve casing 23. The rods 39. 40 and the valve of mechanism 29 are held in position by spring-loaded latches 52 which engage the levers 41, 42. The casing 23 houses valve stems 24, 25, and has conduits 48, 49 leading to the cylinder 50 of the hydraulic motor piston 51. Movement of a control lever 19 to the right causes a lever 17 thereon to depress valve stems 15 and 24 so that air flows to the pump cylinder 32 and liquid supplied by the pump is delivered into conduit 49 to move the piston 51 to the left. Movement of the lever 19 to the left causes a lever 18 to depress valve stems 16 and 25 so that air is delivered to the pump which delivers liquid to the conduit 48 to move the piston 51 to the right.
Patent GB-130447-A (GB)
Title: Improvements in or relating to Pressure-regulating Devices for Fluids.
Inventor: CHASTY FRANCES MIRIAM
IPC: G05D16/06
Filed: 1918-07-25
Abstract: 130,447. Chasty, F. M. July 25, 1918. Pressure regulateing valves.-A pressure-regulating valve of the kind loaded by fluid pressure acting on a flexible diaphragm has a single diaphragm arranged between a series of chambers in the main casing and in a cover-plate. The valve 32 is actuated by the diaphragm 11 acting through a lever 28 mounted on a spring secured to bosses 31. In the modification shown in Fig. 6, the lever is formed of a single strip of metal bent round the ends of a spring 29 fixed to a single boss 31. The pressure in the loading chamber 13 is adjusted by means of a pair of diaphragm valves actuated by a curved wedge device 16 bearing against plate springs 19. In a modification, the valves are actuated by a simple lever having projections engaging helical springs. The valve 8 controls the supply from the fluid conduit through a restricted aperture 24, while the valve 7 controls a port 25 leading to atmosphere. Spring-loaded diaphragmactuated safety-valves 36, 37 and pressure gauges are applied to the main conduit and to the loading chamber.
Patent GB-122841-A (GB)
IPC: B65D45/32
Abstract: 122,841. Soc. Anon. des Usines J. Gallay. Jan. 24, 1918, [Convention date]. Capsule closures, and retaining-bands for special closures. -In a receptacle with a relatively large aperture provided with a removable hermetic cover, a flexible packing- ring 5, Fig. 3, is inserted in the space between the bent edge of the cover 4 and the oppositelybent rim of the receptacle 1 and compressed between these two edges by a peripheral tightening-band 6 which grips the edges, the joint being ensured at the gap where the band 6 is broken by a tongue 8 disposed inside the band at that point. The tightening-band may be of M- section, the median portion of the M exerting pressure on the packing while the edges of the cover and receptacle are gripped between the outer branches of the .M. The band is tightened up by means of a screw 7, Fig. 1, carried in lugs at the ends of the band. The packing consists of elastic or plastic material. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification in which the edge of the opening in the end of the can is bent upward and outward, and the cover, which consists of a disk with a turned-up edge, fits part way into the opening, the packing being placed in the space between the edges of the cover and receptacle and held bv a tightening-band. This subject-matter does not appear in the Specification as accepted.
Patent GB-542971-A (GB)
Title: Improvements in electron discharge devices
IPC: H01J21/20
Filed: 1940-07-29
Abstract: 542,971. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 29, 1940, No. 12312. Convention date, July 29, 1939. [Class 39 (i)] In a valve with a cathode co-operating with two anodes each with its grids adapted to be connected in push-pull each anode is capacitycoupled to the grid controlling the other anode by extensions on the anodes or grid or both. The cathode 21 is in the form of a ribbon bent into a U-shape and corrugated to direct the electrons between the bars of the grids 26, 27. The centre of the cathode is earthed by a connection to the metal envelope. The grids are formed of rods extending between bars which are carried in hollow leads 16, 17 and connected by metal sheets extending round the anodes 24, 25 as shown. The capacity between the metal sheets and the anodes may be varied by bending the sheets by means of levers secured to bellows protecting openings in the envelope and operated by screws. One extension 27, Fig. 1, may be attached to its lead by arms passing through slots in a plate connecting the other extension 26 and grid. In a further arrangement extensions on both anodes and grids interengage. The Specification as open to inspection under Sect. 91 also describes adjusting the capacity by bending portions of the enclosing plates through fluid actuated means or by adjustable plates. Screen grid arrangements are described wherein the capacity coupling is obtained by placing the leads 16, 17, near the anodes. Water cooling of the anodes is described. This subject-matter does not appear in the Specification as accepted.
Patent GB-846995-A (GB)
Title: Improvements in or relating to trunk piston engines
Inventor: ELFORD WILLIAM EDWIN
IPC: F16J1/16
Filed: 1958-04-18
Abstract: 846,995. Balancing pistons. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 15, 1959 [April 18, 1958], No. 12345/58. Class 122 (1). A trunk piston 1 reciprocating in a cylinder of an engine and subjected to transverse forces comprises piston-rings 4 mounted above and below the gudgeon-pin 5 and so formed as to serve to entrap in the space between the rings a volume of fluid which effects viscous damping of the said forces, and means 2, 3 for substantially preventing the leakage of fluid from the space. As shown, the two rings 4 are provided to define the upper and lower boundaries of the space and are each tapered away from the latter so that, in operation, oil is collected and trapped in the space by the reciprocation of the piston. In a modification, two vertical barriers 8 in line with the gudgeon-pin axis and connected with the upper and lower boundaries are provided so as to divide the space into two parts in order to form a restriction for the oil which, upon transverse movement of the piston during reciprocation, is forced from one part to the other.. In he atrrangement shown, the two tapered rings 4 are combined with the barriers 8 which are urged into contact with the cylinder wall by springs 9 located in bushes 6 mounted in the ends of a hollow gudgeon-pin 5. The springs act against members 7 which are provided with oil-holes 10, 11 communicating through holes 12 in the bush 6 with grooves 13 formed in the surface of the piston within the space between the rings 4; pressurized oil is fed through a bore in the connecting-rod and hollow gudgeon through the oil-holes into the space. The radial pressure on the barrier members 8 may be effected, if desired, by the oil pressure alone.
Patent GB-116415-A (GB)
Title: Improvements in Apparatus for use in the Carburetting of Air to Form a Gaseous Fuel for Internal Combustion Engines.
Inventor: DYER CECIL MUNRO
IPC: F02M1/00
Filed: 1917-08-28
Abstract: 116,415. Dyer, C. M. Aug. 28, 1917. Cylinders, pipes for.- An atomizer of the type described in Specification 107,357, for use between the carburettor and cylinder, comprises a tapering casing 1 containing gauze screens 10 and surrounded by a shell 2 provided with inlet and outlet, openings 8, 9 for exhaust gases. The casing is thickened at its lower or inlet edge 4 and is flanged at its upper end 6. The lower end bears against an expanding portion 3 of the shell and both upper and lower bearing surfaces are ground in. The casing is of copper or an alloy containing from 40 to 80 per cent of copper and the outer shell is of brass or cast iron, so that, when hot, the casing is pressed more tightly at its end 4 against the part 3 of the shell. The gauze screens are secured by taper split rings 11 or by spring rings engaging recesses in the casing. The mesh of the gauze screens may become finer from the bottom upwards. A modified construction includes a throttle valve. The upper part of the atomizer may be provided with an air-intake valve.
Patent GB-1113719-A (GB)
Title: Precision balance
Inventor: APPIUS MAX
IPC: G01G1/00
Filed: 1967-03-16
Abstract: 1,113,719. Weighing apparatus. MIKROWA FEIN-UND SCHNELLWAAGEN. March 16, 1967, No. 12463/67. Heading G1W. [Also in Division G2] A precision balance comprising a pivotally mounted beam 5 on one arm of which is mounted a load pan and on the other arm of which is attached a counterweight 7 and scale 8 is provided with an optical projection system which projects an image of the scale 8 on to a viewing screen 16, the projection system being provided with an objective lens member 13 mounted on an adjustable slide 11 so that the optical axis of the lens member 13 can be shifted relative to the scale 8, the direction of shift being parallel to a row of parallel indicating lines 18 on the scale when the beam 5 is under no load conditions. The parallel lines 18 may be marked in percentages and an arcuate indicating line 20 having its centre at the pivotal axis of the beam may be provided on the scale 8. The balance may be used to indicate the percentage loss in weight of a sample which is weighed before and after treatment. During pre-treatment weighing the slide 11 is shifted by rotating a shaft to which is attached an eccentrically mounted circular cam 21 bearing on the slide 11 until 100% is registered on the screen 16. Without re-adjusting the slide 11 the sample is re-weighed after treatment and the reading obtained on the screen gives the percentage loss in weight of the sample. The screen 16 may be provided with a vernier scale (25) Fig. 4a (not shown) and a notch arrangement (26) which is aligned with the arcuate line 20, by adjusting the slide 11, when direct weight indications are to be indicated on the screen 16. The optical projection system which comprises a light source, lenses 10, 13, 15 and a deflecting mirror 14 is provided with a flexible light-conducting member 12 which may consist of a bundle of glass fibres.
Patent GB-437516-A (GB)
Title: Manufacture and application of new soluble azo dyestuffs
IPC: C09B29/08
Filed: 1934-04-25
Abstract: Water-soluble monoazo dyes are made by coupling a diazotized p-nitroamine of the benzene series, free from SO3H or COOH groups, with a sulphuric ester derived from a polyethenoxyalkylamine having the general formula <FORM:0437516/IV/1> Where Ar=a phenyl residue free from SO3H or COOH groups and having a free p-position to the nitrogen, Alk=methyl, ethyl, propyl or butyl, and n=1--4.  They are suitable for dyeing and printing acetate artificial silk and for dyeing wool, silk and leather.  In examples dyes from the following components are specified: 4-nitroaniline, 5-nitro-2-anisidine, 2-chloro-4-nitroaniline, 2 : 6-dichloro- or 2 : 6-dibromo-4-nitroaniline, 2 : 4-dinitroaniline, 6-chloro-2 : 4-dinitroaniline; the sulphuric esters of the condensation products from ethylene oxide and N-ethylaniline, N-n-butyl-N-b -hydroxyethyl - 3 - amino - 4 - methoxytoluene and N-ethyl-m-toluidine.  Samples have been furnished under Sect. 2 (5) of dyes from the following components: o-chloro-p-nitroaniline, 2 : 4-dinitroaniline, 6-chloro-2 : 4-dinitroaniline; the sulphuric esters of the condensation products from ethylene oxide and N-methylaniline and N-n-propyl-m-toluidine. Specification 421,117 is referred to.  Sulphuric esters of amines of the above formula are made by condensing an N-alkylamine of the benzene series, e.g. N-n-butyl-3 - amino - 4 - methoxytoluene, N - ethylaniline or N - ethyl - m - toluidine with the appropriate quantity of ethylene oxide (c.f. Specification 434,126) and treating the product with chlorsulphonic acid.  The Provisional Specification refers to the sulphation of the corresponding oxyalkyl azo dyes.
Patent GB-201645-A (GB)
Title: Golf practising device
IPC: A63B69/00
Filed: 1922-05-03
Abstract: 201,645. Thompson, G. F. Gilbey-. May 3, 1922. Golf-practising appliances.-A golf-practising device comprises a ball slidably anchored to a flight-braking track secured to the ground. The track comprises two slightly divergent wires or cords A, A<1> anchored to the ground at one end end secured to stakes B, B<1> at the other. The ball E is attached to a cord D slidably connected to a transverse cord C which constitutes a slidable connection between the track wires. The ball is placed at the narrow end of the track, and when struck flies forward in the direction of the track until the cord C becomes taut and brings it to rest. The character of the stroke, whether pulled or sliced, is indicated by the position of the ball after the stroke.
Patent GB-1535463-A (GB)
Title: Archery bow
IPC: F41B5/00
Filed: 1977-03-25
Abstract: 1535463 Archery bows MASSACHUSETTS INSTITUTE OF TECHNOLOGY 25 March 1977 [14 April 1976] 12575/77 Heading A6S An archery bow comprises limbs 12, 14, handle 16 and bowstring 18, wherein at least one of the limbs has a cross-section perpendicular to that of the plane of the bow, said plane including limbs and bowstring, which changes substantially on drawing of the bow to act as a substantial energy store As shown in Figure 2 the limbs comprises tensioning metal rods 24, 26 joined by a corrugated web 28, which web is compressed on drawing of the bow as shown in Figure 2A. In an alternative embodiment (Fig. 4, not shown), rods 24, 26 are joined by a rubber strip (48) which is clipped in place by means of embedded wire in the edge portions thereof. Fgures 3 and 6 show alternative embodiments wherein in Figure 3 a single tensioning rod 38 is employed and in Figure 5 tensioning rods 50, 52 are provided joined to rods 24, 26 by rigid web 54, rods 50, 52 being held in close contact by intertwining strap 56 or intermeshing gear teeth (Fig. 8, not shown). the handle provided with flexible shafts 66 is connected to the limbs by means of hinge portions 62.
Patent GB-252372-A (GB)
Title: Improvements in or relating to valves for hand fire extinguishers
IPC: A62C13/00
Filed: 1926-05-18
Abstract: 252,372. Holtz, P. May 20, 1925, [Convention date]. Portable pressure reservoirs. - A fire-extinguisher a of the kind in which a liquid is permanently under air pressure, is sealed by a metal disc h gripped between the valve fitting c and the mouthpiece b. When the cone-valve e is opened by the lever g against the pressure of a spring o it breaks the disc h to allow escape of the liquid. Air pressure is built up in the extinguisher by a pump applied to the nozzle n, In a modification, the thin disc h is replaced by a thicker disc having a central hole closed by a thin piece of metal soldered over it. In another modification, the disc h is corrugated around its edge to assist in pumping in the air, the corrugations being flattened out when the fitting c is pressed home by the screwed cap d.
Patent GB-599683-A (GB)
Title: Improvements relating to the manufacture and utilization of cold setting polyhydric phenolic aldehyde adhesives
IPC: C09J161/12
Filed: 1944-07-04
Abstract: In bonding together two or more members, e.g. wood plies, veneers, and sheets of metal, rubber, plastics, leather, cellulose fabric &c. by applying to the surfaces of the members an adhesive coating of a liquid resorcin-aldehyde resin obtained by reacting resorcin and less than the molecular proportions thereof of an aldehyde and cold setting the members, the treated members or cores placed between them are coated just prior to setting with a setting agents having present therein a reactive methylene-containing radicle, e.g. aldehydes, methylol containing substances, e.g. polymethylol phenol (prepared by reacting 94 gs. phenol in 200 cc. water with 50 gs. sodium hydroxide and adding 215 gs. 37 per cent formaldehyde the mixture being reacted at 20-25 DEG  C.) dimethylol urea, polymethylol melamines.  Non porous surfaces are preferably pretreated with a dilute priming solution of the resin.  Aldehyde reacting materials specified are formaldehyde, paraldehyde, acetaldehyde, propionaldehyde, butylaldehyde, furfuraldehyde, dialdehydes, e.g. glyoxal. Preferred ratios of formaldehyde are from .67 to 1.  Acid or mild alkaline catalysts are employed, e.g. organic acids, .5 per cent sodium hydroxide, .2 per cent borax, azoxy-toluidine, aniline, and are preferably added at the end of the reaction exemplified by reacting 2500 gs. resorcin with 500 gs. 27 per cent formaldehyde until the temperature reaches 100 DEG  F. whereupon further 750 gs. formaldehyde are added in increments; 25 gs. oxalic acid is added to complete the reaction, refluxing is then stopped and the resin dehydrated under vacuum to a moisture content of under 1 per cent. The resin is used as a solution in water or organic solvents, e.g. alcohols (methanol, propanol ethanol or higher alcohols) ketones (ethyl, methyl, butyl methyl ethylketones acetone) plasticisers such as rubber and synthetic rubbers may be added.  Setting up times of 1-4 hours with formaldehyde and 4-16 with methylol setting agents at temperatures from 60-200 DEG  F. are specified and directions are given for bonding veneers of beech, birch, maple, mahogany, poplar, spruce to make plywood for aircraft, boats, furniture, &c.
Patent GB-636829-A (GB)
Title: Improvements in and relating to machines for grinding or refining paint, cellulose, chocolate and other substances
IPC: B02C4/10
Filed: 1948-05-10
Abstract: 636,829. Grinding mills. McINTYRE, J. May 10, 1948, No. 12764. [Class 59] A removable cylinder lining for a grinding mill of the type wherein a rotor carrying resiliently loaded longitudinally extending grinding bars rotates within a fixed cylinder comprises longitudinally extending grinding bars secured together by welding. As shown, grinding bars a are assembled round a mandrel b suitably supported, by threading them between the mandrel and the rings cc. When the bars are so supported they are tightened circumferentially by the introduction of a temporary wedge e before being secured together by welding or brazing as at ff On removal of the wedge e the lining is slipped off the mandrel and when fitted into the cylinder of the machine is made fast therein by means of a wedge h. In a modification the lining is formed on the mandrel as a complete cylinder with at least one of its bars extending beyond the others to mate with corresponding recesses in the end covers of the grinder.
Patent GB-821612-A (GB)
Title: Improvements relating to dynamo electric machines
Inventor: WEBSTER FRANK ALAN
IPC: H02K1/18
Filed: 1955-05-03
Abstract: 821,612. Supporting dynamo-electric machine cores. ENGLISH ELECTRIC CO. Ltd. April 26, 1956 [May 3, 1955], No. 12801/55. Class 35. In a stator with the laminµ carried by axial bars in turn secured to axially spaced transverse frame plates, the axial bars are slotted tangentially in the regions where they are secured to the transverse plates to provide radial resilience in the core support. As shown, segmental laminµ 14 are dovetailed on to bars 12 which are carried by frame rings 10 insulation being provided between the laminµ and the bars. Each bar has a slot 17 under each ring 10 to increase its resilience, the slot extending transversely of the bar from side to side. The slots 17 near the core ends could be omitted.
Patent GB-665933-A (GB)
Title: Improvements in optical toys
IPC: G02B27/06
Filed: 1949-05-17
Abstract: 665,933. Optical toys; toy books. BIRKS, Ltd., E. A., and BIRKS, E. A. May 17, 1950 [May 17, 1949], No. 13060/49. Classes 16 and 132 (iii). An optical toy, which may be initially produced as a " cut-out " on sheets of cardboard which may be folded together in the manner of a book, displays pictures which appear to be animated, and comprises (Figs. 2, 4) a screen member B with aperture C, and panels d<SP>1</SP>, d<SP>2</SP> having slots H, G, through which an endless pictorial band F may be passed. A disc light filter, comprising two semi-circular transparent sections K<SP>1</SP>, K<SP>2</SP> coloured, for example, red and blue-green respectively, is rotatably mounted on a pin L and may be embodied in a sand wheel device or may be manually operated. When one of a series of pictures E, consisting of two generally similar portions e<SP>1</SP>, e<SP>2</SP> printed in red and blue-green and in superposed relation is positioned to be visible through the aperture C, the rotation of the disc causes the alternate filtering out of the red and blue-green rays reflected from the picture, thus producing an animated effect of the picture. Different pictures are viewed in turn by feeding through the band F. The supporting panel d<SP>1</SP> is preferably rearwardly inclined so that incident light from above will be reflected forwardly from the picture being viewed. Specification 640,079. is referred to.
Patent GB-1132854-A (GB)
Title: Novel anilides and pharmaceutical compositions containing them
Inventor: MARTIN BERNARD KEAT
IPC: A61K33/42
Filed: 1965-03-27
Abstract: 1,132,854. Substituted anilides. ASPRONICHOLAS Ltd. 25 March, 1966 [27 March, 1965; 22 Sept., 1965], Nos. 13088/65 and 40329/65. Heading C2C. [Also in Division A5] Novel anilides of the general formula wherein R represents an aliphatic hydrocarbon group having from 3 to 6 carbon atoms, R 1  represents a hydrogen atom or an alkyl group and R 2  represents an aliphatic acyl or carbocyclic aroyl group having from 2 to 10 carbon atoms with the proviso that (a) when R 1  represents hydrogen and R 2  represents an acetyl group, then R is not an alkyl or isoamyl group in an ortho position with respect to the OR 1  substituent, (b) when R 1  is methyl or ethyl and R 2  is acetyl, then R is not an isopropyl, t-butyl or cyclohexyl group in an ortho position with respect to the OR 1  substituent, (c) when R 1  is hydrogen and R 2  is benzoyl, then R is not isopropyl in a meta position with respect to the OR 1  substituent, and (d) when R 1  is hydrogen and R 2  is n-hexoyl, then R is not n-hexyl in an ortho position with respect to the OR 1  substituent, are prepared by acylating the required substituted aniline and, in the case where a required p-aminophenol is used as the reactant, alkylating the resulting R-substituted 4-acylaminophenol or 4-aroylaminophenol to form a desired compound wherein R 1  is alkyl. R-substituted-4-aminophenols where R has the above significance, are prepared by coupling the alkali metal salt of the required R-substituted-phenol with a diazonium salt and reducing the resulting azo compound.