baber/WOPTO huggingface dataset:
Patent GB-375917-A (GB)
Abstract: 375,917. Two-stroke engines. GRANZELIUS, K. A. T., 4, Karduansmakaregatan, Stockholm. April 18, 1931, No. 11553. Convention date, Feb. 11. [Classes 7 (ii) and 7 (vi).] In engines having a combined scavenging and charging pistor 5 arranged in the power cylinder, this piston remaining stationary during a part of the working cycle and then moving rapidly to assist in the expulsion of the combustion products and to supply the fresh charge, the piston is driven from a crank shaft 10 rotating at three times the speed of the main power shaft ; during two revolutions of this shaft 10 there is no rigid connection between it and the auxiliary piston 5, but the third revolution drives the piston. As shown in Fig. 2 a telescopic connecting-rod-comprising a tube 37 attached to a cross-bar 38 and a rod 36 within the tube-is used between the crank shaft and the piston 5 ; a pinion 32 on the crank pin 30 meshes with a wheel 34 of three times its diameter and journalled on the lower end of the rod 36. The wheel 34 drives a cam 33 which through the bowl 46 can move a detent to lock the tube 37 and rod 36 together thereby driving the auxiliary piston. This piston has a seating 50, Fig. 4, for a valve 49 which is carried on the end of the piston-rod 6 driven from the twopart connecting-rod 37, 36. The valve 49 and piston 5 move down together ; as the rod 6 returns the two separate to allow charge to enter the cylinder, spring hooks 51 limiting the separation of the two parts and causing the piston 5 to come against the valve 49 at the top dead-centre. The charge is drawn by the piston 5 into the chamber formed between it and the cylinder head past a valve 56. This valve is opened against the action of the valve-closing springs 70 by valve lifters 67 carried on the rock shafts 66 ; these are oscillated by arms 73, Fig. 18, which carry rollers 74 to engage cam surfaces 77 on plates 76 attached to the cross-bar 38 for the piston-rod 6, when the plates, piston 5, &c. are in their topmost position. On the downward movement of the plates 76 the shafts 66 are rocked and the valve 56 is opened. The main exhaust valve 22, Fig. 2, is worked off an extension 71 carried by one of the valve lifters 67. The piston 5 has vanes to cause swirling of the mixture entering the cylinder. A sleeve valve may be used to control the flow of gases. In a modification the spring fingers 51 are replaced by a spring 62 housed within the hollow valve rod 6, Fig. 19, or outside of the working cylinder ; this spring tends to keep the valve 49 on to its seating in the piston 5. The Specification as open to inspection under Sect. 91 (3) (a) also describes other arrangements for actuating the piston 5. In one form the fulcrum 7, Fig. 1 (Cancelled), of a lever is free during most of the working stroke of the main piston but is held when the piston 5 is to be driven off the high speed shaft 10. In other arrangements toggle links are straightened to effect movement of the piston 5. This subject-matter does not appear in the Specification as accepted.
Patent GB-852283-A (GB)
Title: Fluid flow control valve assemblies and level control valves for tanks
Inventor: RUSSELL JOHN GAETAN
IPC: B64D39/06
Filed: 1956-12-10
Abstract: 852,283. Fluid-pressure servomotor-control systems; valves. PARKER-HANNIFIN CORPORATION. Dec. 10, 1956, No. 37607/56. Class 135. In a fluid-pressureoperated valve for controlling the level of fuel in a tank and having the main valve controlled by a diaphragm, a pilot valve for controlling the flow of fluid from the diaphragm chamber to the tank comprises a primary valve and a secondary valve, a float and means operated by the float, including a lost motion connection between the float and the secondary valve, for opening first the primary valve and then the secondary valve. The primary valve 43 coacts with a cone-shaped valve seat 41 formed in the outlet from the diaphragm chamber and has a central orifice 45 formed with a cone-shaped seat 46 to coact with the primary valve 42. An actuating stem 53 moved by the float arm 51, pivoted at 52, carries a V-shaped head 58 to engage the underside of the secondary valve 43 to open it and a rod 60 rigidly connected to the primary valve 42, the V-shaped head being spaced away from the secondary valve when both valves are closed, such that the actuating stem will open the primary valve first and then the secondary valve.
Patent GB-523459-A (GB)
Title: Materials and process for the production of heavy suspensions
IPC: B03B5/44
Filed: 1938-12-30
Abstract: 523,459. Wet separating processes. PEARSON, A. Dec. 30, 1938, No. 37837. [Class 82 (ii)] A medium for use in the separation of minerals consists of a suspension, in an aqueous or other liquid medium, of finely divided metal or alloy, or mixtures thereof, capable of recovery by froth-flotation, for example copper, or by magnetic separation, for example iron or an iron alloy. Specification 507,661 is referred to.
Patent GB-1180875-A (GB)
Title: Flying Shear.
Inventor: ESSER PAUL
IPC: B23D25/04
Filed: 1968-08-08
Abstract: 1,180,875. Flying shears. P. ESSER, [trading as MEYER, ROTH & PASTOR]. 8 Aug., 1968 [23 Aug., 1967], No. 37951/68. Heading B3W. A flying shear comprises a slider 12, carrying a cutting bush 13, which is operated by a crank and connecting rod 28, and a knife 29 guided on the slider to co-operate with the bush, the knife being directly moved by a transmission element coupled to the connecting rod. In the embodiment shown this element is an arm 27 from the little end of the connecting rod which has an extension 28a carrying the knife 29. The knife position may be adjusted by screw 30 and the stroke of the slider is adjusted by altering the throw of the crank by means of a screw (23), Fig. 2 (not shown). In the embodiment shown in Fig. 4, the slider 12 is directly connected to the little end of the connecting rod and the knife 35 is carried in a slide 34 operated by the end 36 of the connecting rod 17. In Fig. 5, the slider is moved by the knife 42 in its guide on slider 41, the knife being secured to the connecting rod 17 at a point intermediate its big end and little end 45, the little end being joined by a link 46 to a fixed pivot 47. The position of the pivot 47 may be adjusted or it may follow an independent path. The position of the blades of the knives of the shears may be adjusted so that cutting takes place at the correct time in relation to the speed of the wire or strip material passing through the bush 13.
Patent GB-523339-A (GB)
Title: Improvements in lighting fittings
IPC: F21V17/00
Filed: 1938-12-31
Abstract: 523,339. Lighting fittings. THOMAS & CO., Ltd., F., and THOMAS, F. S. Dec. 31, 1938, No. 37974. [Class 75 (ii)] The globe 4 is held between flanges 2 and 9 on members 1 and 8 respectively, the member 8 being loosely mounted on the central support 6 and connectable by means of pins 11 engaging holes 12 with the member 1 which is screwthreaded on 6 and moves along it when 8 is rotated after engagement of the pins 11.
Patent GB-374883-A (GB)
Title: Improvements in shearing machine comb plates
IPC: B26B19/24
Filed: 1930-12-17
Abstract: 374,883. Sheep-shearing machines. BOURKE, J. J., George Street, Mungindi, New South Wales, Australia. Dec. 17, 1930, No. 38117. [Class 131.] A shearing-machine comb plate is provided with parallel sides from the points of the outer teeth 17 to the butt, and the teeth are disposed fanwise, the points being equally spaced on a concave curve, and the gullets equally spaced on a convex curve with the exception of the end gullets 15 which extend only to the depth of the penultimate gullets 16. Ovate runners are provided on the under surface of the ends of the outer teeth.
Patent GB-878265-A (GB)
Title: A transistor
IPC: H01L29/73
Filed: 1959-11-11
Abstract: 878,265. Transistors. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Nov. 11, 1959 [Nov. 12, 1958], No. 38257/59. Class 37. In a transistor where E, Fig. 1, is the emitter, K the collector, B the base, 2 a PP + or NN + junction and 3 and 4 are PN junctions, the dimensions a, band c shown have the following relationship : a # b # c. The emitter and base electrodes may be annular and an additional base electrode may be provided within an annular emitter. In Fig. 5 where the collector K and the base electrodes B, B<1> overlap, E being the emitting electrode, then a # b # c<1>. In Fig. 6 where the surface contacted by the emitter E and base B is stepped or bevelled, a = b = c.
Patent GB-849869-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/873
Filed: 1958-12-02
Abstract: 849,869. Gas-blast circuit-breakers. WESTINGHOUSE ELECTRIC CORPORATION. Dec. 2, 1958 [Dec. 10, 1957], No. 38791/58. Class 38 (5). A circuit-breaker has sealed arc-extinguishing units in a further sealed enclosure, the same or a different gas being used in each enclosure at differing pressures. The grounded metal tank 2 contains a low-pressure gas which also fills the spaces 57 in the insulators 45 through a spring-loaded check-valve 52. Higher pressure gas fills the interior of the arc extinguishing units 4, the hollow lead 40 and the chamber 42. A piston 10 forms a stream of the gas through nozzles 14 to extinguish the arc. The axles 30 of the operating members are sealed to the units as disclosed in Specification 710,925 and the bridging contact bar 37 forms an isolating link in its extreme downward position. SeF 6  or SF 6  may be used as well as CO 2 , N 2 , He or A. Current transformers 50 are provided round the grounded shell 47.
Patent GB-938000-A (GB)
Title: Improvements in or relating to current supply devices employing transistors
IPC: H05B41/282
Filed: 1960-11-11
Abstract: 938,000. Discharge lamp circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 11, 1960 [Nov. 14, 1959], No. 38826/60. Class 38 (4). [Also in Group XL (c)] A transistor oscillator, more particularly for supplying a fluorescent lamp, has a feedback circuit which applies a reverse voltage of at least 5 V. to the base of the transistor just before the transistor is cut off and a non linear element in the base circuit to limit the reverse base voltage. The Figure shows a push-pull oscillator similar to one of the embodiments of Specification 909,969. It comprises two transistors back coupled via a tuned output transformer 23, 24, 28 and also via capacitors 26 so as to oscillate at a frequency near to the cut-off valve of the transistors and to provide a reverse bias of at least 5 V. to each base before the corresponding transistor is cut off. It is explained that surges, for example due to a voltage regulator of a charging system 1-15 for the supply battery or due to switching or lightning, are prevented from causing collector breakdown by the reverse bias. Damage to the base circuit is prevented by non-linear symmetrical currentlimiting resistors 33 or by corresponding Zener diodes. In an alternative circuit (Fig. 3, not shown) the feedback capacitors are connected in series with the feedback windings and a single non-linear voltage limiting resistor is connected between the bases.
Patent GB-1367904-A (GB)
Title: Stabilization of peroxydisalts for use in desizescouring of textiles
IPC: H03G1/00
Filed: 1971-08-19
Abstract: 1367904 Desizing and scouring F M C CORP 19 Aug 1971 [21 Aug 1970] 38875/71 Heading D1P [Also in Division C1] Greige goods, e.g. cotton goods are desized and scoured by saturating the goods with an aqueous solution of a caustic alkali and a peroxydisulphate or peroxydiphosphate stabilized by the presence of a stabilizer dispersible in the solution and which is capable of reacting with free radicals, the goods picking up from 0.5 to 5% of the peroxy compounds and from 0.3 to 5% of the alkali, holding the goods and washing the goods with water to remove chemicals and dissolved matter. The aqueous alkaline solutions of peroxydisulphates or peroxydiphosphates are stabilised by the addition of urea, paramagnetic gases, e.g. oxygen and nitrogen oxides, vinyl monomers, e.g. vinyl acetate, acrylic and methacrylic acid and their esters and amides and acetanilide. The treatment solutions may containing a wetting agent and potato starch. The process may take place at temperatures from 150F-275F under pressure.
Patent GB-1335957-A (GB)
Title: Powdered coating compositions
IPC: C08L33/02
Filed: 1972-08-22
Abstract: 1335957 Powder coating composition CABOT CORP 22 Aug 1972 [24 Aug 1971] 38982/72 Headings C3B C3R and C3P  A powdered coating composition comprises a synthetic organic particulate solid (I) having a particle size <500Á and at least 0À1% by wt. of hydrophobic pyrogenic silica (II) having a particle size <50 millimicrons. In examples I is a propylene/maleic anhydride copolymer, an epoxy resin and a bisphenol modified glycolfumarate polyester. II may be surface modified by chemically attached organisilicon groups -SiRaXb in which each R may be an alkyl, aryl, alkaryl, alkoxy, aryloxy, alkaryloxy or aralkoxy radical; a may be 2 or 3, X is halogen or hydroxyl, b is 0 or 1 and a + b = 3.
Patent GB-1378442-A (GB)
Title: Process for charging catalyst to a reactor
IPC: B01J8/02
Filed: 1972-08-22
Abstract: 1378442 Charging catalyst to a reactor ATLANTIC RICHFIELD CO 22 Aug 1972 [24 Sept 1971] 39032/72 Heading B1F A process for charging a solid substantially spherical catalyst to a fixed bed reactor comprises charging to the reactor in downflow relationship to said reactor, solid catalyst particles having a substantially spherical geometry at a rate of fill of the reactor of up to about 17 vertical inches per minute, and at an average free fall distance of the catalyst particles through a gaseous medium to catalyst surface of at least about 1 foot, in such a manner that the catalyst particles are distributed at substantially the same rate of fill over the catalyst bed surface formed as the catalyst is being distributed to the reactor.
Patent GB-964425-A (GB)
Title: Lathes
IPC: B23Q1/01
Filed: 1960-11-16
Abstract: 964,425. Lathes; beds. GEB. HEINEMANN A.G. WERKZENGMASCHINENFABRIK. Nov. 16, 1960 [Oct. 11, 1960], No. 39354/60. Headings B3B and B3T. A multi-purpose lathe has independent upper and lower sets of horizontal guideways arranged one above the other and has two feed shafts arranged in a slot between one set of guideways and a further feed shaft arranged in a slot between the other set of guideways. The set of guideways 5, 5; 6, 6 are arranged in different planes on the lathe bed and may be vertical or have a slight inclination (10 degrees). Two feed-shafts 2, 3, are provided for the upper set of guideways and one feed-shaft 1 is provided for the lower set of guideways. Various arrangements of slides can be mounted on the guideways to be operated by the feed-shafts or independently thereof. The feed-shafts are provided with separate gear-box and drive mechanism so that they can operate individually or simultaneously and may be interchanged or replaced. Slides and accessories referred to include transverse, hydrauliccopying, longitudinal and turret and a tailstock. The turret may have its own motor for indexing. The straight down bed arrangement facilitates the collection of cuttings in a trolley at the front of the machine.
Patent GB-338044-A (GB)
Title: Improvements in or relating to binocular telescopes
Filed: 1929-12-24
Abstract: 338,044. Pechan, I., Schier, J., and Akt.-Ges. C. P. Goerz. Dec. 24, 1929. Telescopes. - A double binocular telescope, constructed as an angular telescope, is provided with a third eyepiece enabling simultaneous obser. vation by a second observer when a prism, mounted adjustably in one half of the telescope is moved into the path of the rays from the image. In the form shown, the incident rays in each half fall on a reflecting prism 1 and are received by a pentagonal roof edge prism 3 by which they are reflected on to afield screen 7 which is viewed through an eyepieee 8. The prism 3 in one half of the telescope is mounted for rotation through a right angle into the position shown in the dotted lines 3<1>, the rays 'being then reflected into a roof edge prism 9 mounted in the auxiliary eyepiece. In a modification the prism 1 is roof edged and a simple pentagonal prism is used with it. In a further modification the pentagonal prism is fixed and a reflecting prism is provided which is rotated or slid into the path of the rays.
Patent GB-1169053-A (GB)
Title: Preparation of Dialkyl Aluminum Acetylacetonates
IPC: C07F5/06
Filed: 1967-08-30
Abstract: 1,169,053. Dialkyl aluminium acetylacetonate. ESSO RESEARCH & ENG. CO. 30 Aug., 1967 [7 Oct., 1966], No. 39719/67. Heading C2J. Dialkyl aluminium acetylacetonates are prepared by adding a solution of a trialkyl aluminium, AlR 3 , where R preferably contains from 1 to 10 C atoms, to a solution of aluminium trisacetylacetonate at ambient temperature. Sidereactions may be minimized by adding a Lewis base, such as ether, tetrahydrofuran, p-dioxane, anisole, or triethylamine, in a 1:1 stoichiometric ratio to the AlR 3  either by direct addition or by incorporation in the solvent, which may be an aliphatic or aromatic hydrocarbon. The product is separated from the solvent and Lewis base (if used) by distillation under vacuum. Specific examples of the process are given.
Patent GB-1338509-A (GB)
Title: Lamp socket and connector structure
IPC: F21V19/00
Filed: 1971-08-25
Abstract: 1338509 Two-part couplings ITT INDUSTRIES Inc 25 Aug 1971 [2 Sept 1970] 39881/71 Heading H2E In a two-part coupling, one part C is joined to a wiring harness and the other part 21 includes a lamp-receiving socket, the part C having its contacts 31 surrounded by a skirt 8 which is engageable with the other part to effect coupling, contacts 27 in the other part being engageable with the contacts 31 in the part C and with the terminals of a lamp 25 inserted in the socket. The part 21 comprises a body 23 forming a lampreceiving cavity 24 and a contact cavity 26 having resilient contacts 27 each comprising a lamp contacting portion 28 and an extension 29 for connecting with a respective pin-contact 31 of the part C, an extension 30 retaining the contact within the cavity 26. A flange 37, a compressible ring 28 and shoulders (39-41) of a collar 22 serve to mount the part 21 by engaging recesses in an opening of a panel or lamp reflector, the ring 28 accommodating panels of different thicknesses and the collar 28 being welded to the body 23 after positioning in the panel. The skirt 8 has resiliently extending fingers 89 with locking edges 93 which enter into slots 92 and engage shoulders 94 of the housing 23 to hold the two parts together, a dust- and dampexcluding compression seal 13 being located between the two parts. An earthing strip (71) provides a return current path in the part 21 to both the panel and a contact in the part C and rubber boots 10 seal the pins 31 to the skirt 8. The part 21 may include a tower (4<SP>1</SP>) for receiving an optical fibre. The contacts 31, 27 are held in place by means of tangs 35 and lips 30 respectively.
Patent GB-999196-A (GB)
Title: Apparatus for effecting scanning by an ultrasonic beam
Inventor: PETERS RONALD ERNEST
IPC: G10K11/35
Filed: 1963-10-09
Abstract: 999,196. Ultrasonic inspection. ROLLS. ROYCE Ltd. Oct. 9, 1963, No. 39903/63. Heading H4D. A specimen 25 is tested for flaws by scanning it with an ultrasonic beam produced from a pulsed piezo-electric source of ultrasonic energy 22 mounted inside a rotating helically slotted drum 10 co-operating with an elongated slotted member 20 energy transmitted through the specimen, which is moved transversely of the drum axis, being received by a piezo-electric member 26 and supplied to a chart recorder 31, 32. The scanning elements, piezo-electric devices and the specimen may be mounted inside a waterfilled tank.
Patent GB-1254227-A (GB)
Title: Improvements in convertible furniture
Inventor: MILTON WILLIAM FRANK
IPC: A47C17/16
Filed: 1969-08-09
Abstract: 1,254,227. Convertible chair. PRICE BROS. & CO. Ltd. Aug. 3, 1970 [Aug. 9, 1969], No 39964/69. Heading A4J. An upper portion 2 of a chair normally forms the back, but can be swung about axis 11 to lie adjacent and to mate with, bottom portion 3 that has a projecting portion 4 functioning as a seat portion. A settee may be formed in like manner.
Patent GB-1512217-A (GB)
Title: Pipe joints
IPC: F16L37/113
Filed: 1975-09-30
Abstract: 1512217 Pipe couplings R A FRANCIS 30 Sept 1975 [1 Oct 1974] 40001/75 Heading F2G A joint between pipes 6, 7 of plastics material comprises a sleeve 5 bridging the pipe ends, the sleeve being provided with sealing rings 11 to seal against the pipes and disposed in annular recesses formed by flanges 10 on the sleeve and closure rings 14 at each end of the sleeve, the rings 14 having channeled flanges 15 to engage with radially projecting lugs 8 on the sleeve 5 in a bayonet type connection, and the sealing rings 11 each having an annular groove 12 therein to form peripheral lips 13 which will be applied both by fluid pressure in the pipes and by the closure rings 14 to the surfaces to be sealed. The lugs 8 are provided with wedging faces 9 and radially disposed reinforcing webs (not shown) are provided across the groove 12 and between the lips 13 at spaced intervals around each sealing ring 11.
Patent GB-1461406-A (GB)
Title: Stopper for use in trawling gear link component for trawling gear
IPC: F16G15/00
Filed: 1973-08-24
Abstract: 1461406 Chain couplings PARSONS CONTROLS Ltd 20 Aug 1974 [24 Aug 1973] 40207/73 Heading F2Q A metallic stopper component for use in a fishing trawl has one end formed to resemble a chain link 1 and its opposite end formed to resemble a shackle 3, the central portion of the component being formed with outwardly projecting shoulders 5. Each of the arms of the shackle 3 is provided with an oval aperture 11 in which an oval connecting pin 13 is located. Locking pins 17 are disposed in apertures 15 in the arms of the shackle 3, and the pins 17 engage tangential grooves in the surface of the connecting pin 13.
Patent GB-1283742-A (GB)
Title: Lids for packages
Inventor: VERMEULEN EMILE RAYMOND
IPC: B65D77/20
Filed: 1969-08-13
Abstract: 1283742 Lids for packages SIDAPLAX 13 July 1970 [13 Aug 1969] 40374/69 Heading B8C [Also in Division C3] A package comprises a lid of biaxially orientated high impact polystyrene sealed to the rim of an open container. The lid may be flat or may be thermoformed to accommodate the shape of the contents or to strengthen it. The container may have a flange around its rim to which the lid is sealed by adhesive, solvent or heat sealing. The biaxially orientated high impact polystyrene of the lid contains from 3 to 10% by weight of a rubber which may be natural rubber, polybutadiene or a styrene/ butadiene copolymer. The container may be made of paper, paper pulp, or cardboard, or of thermoplastic resins such as polyacrylates, polymethacrylates, polycarbonates, polyvinyl chloride, polyethylene terephthalate, isotactic polypropylene, a styrene polymer, polystyrene or a styrene copolymer such as styrene acrylonitrile copolymers.
Patent GB-404513-A (GB)
IPC: F22B11/00
Abstract: 404,513. Steam-boiler water-tubes. DANKS & CO. (OLDBURY), Ltd., E., and HENRY, J., Oldbury, near Birmingham. April 13, 1933, No. 11190. [Class 123 (ii).] Water-tubes 6 in the combustion chamber 5 at the rear of a furnace flue boiler are connected to the lower water space of the boiler by tubes 10 terminating at spaced distances along the boiler shell. The water tubes 6 may open into headers at their upper end as well as at the lower end and the upper headers may also be connected to the boiler by tubes opening at spaced distances along the boiler shell.