baber/WOPTO huggingface dataset:
Patent GB-529684-A (GB)
Title: Improvements in and relating to four-wheel stearing gear for motor and other vehicles
IPC: B62D7/14
Filed: 1939-06-06
Abstract: 529,684. Steering-gear for motor and other vehicles. BORGWARD, C. F. W., June 6, 1939, No. 16590. [Class 79 (v)] In four-wheel steering gear the front wheels are first steered until they have reached their maximum obliquity while the rear wheels are locked, further movement of the steering gear then causing catch member to lock the front wheels and release the rear wheels so that the latter also are then steered. In the construction shown the steering lever c is adapted to be connected by a sliding catch e to either of two sectors h<SP>1</SP>, k<SP>1</SP> secured to arms h<SP>2</SP>, k<SP>2</SP> respectively connected to the front and rear steerable wheels. In the position shown in Figs. 3 and 4 the catch e couples the levers c to the sector h<SP>1</SP>, while the sector k' is locked to the casing g by one of a pair of sliding bolts n, o connected together by a member p. Thus, when the lever c is operated it moves the sector h<SP>1</SP> and steers the front wheels while the rear wheels remain unaffected. When the sector h<SP>1</SP> abuts against a stop r', as shown in Fig. 5, the catch e is opposite a hole in the sector k<SP>1</SP>, and if the lever c is still forced onwards the catch e slips out of the sector h' and into the sector k' which is then carried forward by the lever c to steer the rear wheels. As the catch slides into the sector k<SP>1</SP> it moves the bolt o out of the sector and its other end o<SP>1</SP> slips into the sector h and locks the front wheels.
Patent GB-475590-A (GB)
Title: Improvements in and relating to exposure meters for photographic and cinematographic purposes
IPC: G01J1/42
Filed: 1936-06-15
Abstract: 475,590. Exposure meters. SMETHURST, P. C. June 15, 1936, Nos. 16627 and 23573. [Class 98 (i)] In order to judge a photographic exposure in accordance with the " high lights " of the scene, the light incident upon it is measured, by pointing towards the illuminant, from a position adjacent to the scene, an exposure meter which includes in front of the light sensitive element a translucent plate made of a substantially perfect light diffuser such as opal glass. A lens, stop, or filter may be introduced between the diffusing screen and light-sensitive element, or the diffusing screen itself may be tinted. The function of the diffusing screen is to integrate the light falling on it from different directions and the screen will, for the purpose set forth, be flat and unobstructed on the side on which the incident light falls ; the first Provisional Specification refers to other shapes, e.g. ellipsoidal.
Patent GB-1510651-A (GB)
Title: Photographic processes and silver halide solvent compositions
IPC: G03C5/38
Filed: 1975-04-22
Abstract: 1510651 Photographic silver halide solvents POLAROID CORP 22 April 1975 [23 April 1974 1 April 1975] 16669/75 Heading G2C An aqueous alkaline photographic processing composition contains a silver halide solvent which forms a silver complex soluble in the aqueous alkaline solution, and which comprises (a) a functional group having an O, N or C atom that ionizes to the corresponding O#, No or C# anion in the alkaline solution and (b) a functional group have an -S- containing moiety, excluding -SH and moieties that form -SH in alkaline solution, wherein the S is positioned alpha, beta, gamma, delta, epsilon or zeta to the anion. (a) may be derived from a 2-amino-4-hydroxy-1,3,5-triazine, 1,2,3,4-tetrazole, 5-pyrazolone, 1,3-disulphonylalkane, sulphonamido derivative of an amino acid or 2,4- or 4,6-dihydroxypyrimidine. (b) may be derived from a thioether group or a thien-2-yl group or other cyclic S- containing group. The processing composition may be used for fixing or in the silver salt diffusion transfer process. The silver halide solvent may be incorporated in a silver halide material, in which case it is solubilized in the processing composition during processing.
Patent GB-1105614-A (GB)
Title: Catalytic converter
Inventor: KING PETER PATRICK
IPC: B01J8/02
Filed: 1964-04-22
Abstract: 1,105,614. Catalytic converter. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 March, 1965 [22 April, 1964], No. 16716/64. Heading B1F. A catalytic converter has means for introducing fluid at one or more positions along the direction of reactant flow, such means comprising a set of perforated hollow bars 22 each having associated with it a sparger 24 for injecting the fluid. Successive sets of bars are preferably mutually parallel and may be staggered. The distance between the bars in a set is preferably between 10 and 20 times the average largest dimension of the catalyst particles to be used. In the embodiment of Fig. 3, (not shown), reactant gas is fed in by the main inlet 15 and also by perforated bars 22 and spargers 24, the upper bar and sparger being C-shaped and the lower bar and sparger forming a complete circle. There is reference to synthesis of ammonia and of methanol.
Patent GB-308522-A (GB)
Title: Improved process and apparatus for manufacturing cores for castings
IPC: B22C9/10
Filed: 1928-06-08
Abstract: 308,522. Soc. Anon. des Fonderies Samson, and Moussiaux, E. June 8, 1928. Moulding-machines ; core - making ; core-boxes.-A sand core is moulded by compression on a. reinforcing tube or frame by means of half dies into which predetermined volumes of sand are introduced before and after the insertion of the tube &c. The dies 2, Fig. 3, carry inclined plates 4 which form a funnel into which sand is introduced and gauged by a templet 7. The dies are then opened by right- and lefthanded screws to allow the sand to enter, escape at the bottom being prevented by a counterbalanced plate 5. The tube 10, Fig. 4, is then placed in its adjustable supports 9, the dies are closed to a definite position depending on the degree of compression desired, a scale preferably being provided on the frame to facilitate this operation. More sand is then introduced and gauged by a scraper 12, Fig. 5. The dies are then closed, this operation being facilitated by the fact that the contacting edges 2d thereof are bevelled off as shown and also that the plate 5 can yield to pressure from above. The dies are then opened and the core removed ready for use.
Patent GB-924589-A (GB)
Title: Azetidine derivatives and process for their preparation
IPC: C07D205/08
Filed: 1961-05-09
Abstract: The invention comprises azetidine-2-ones of the general formula: <FORM:0924589/IV(a)/1> wherein R1 represents a hydrocarbon radical which may be substituted in any aromatic nucleus present by halogen and/or alkoxy; R2 represents a cycloalkyl radical or an aryl or aralkyl radical optionally substituted by halogen or alkoxy; R3 represents hydrogen, a lower alkyl or alkenyl radical, or a lower dialkylaminoalkyl radical the alkyl radicals of which may be bound to each other direct or by way of oxygen; and R4 represents hydrogen or a lower alkyl group (the term 'lower' indicates that the group so described contains up to 6 carbon atoms) and the preparation thereof by cyclising a b -aminocarboxylic acid: R3NH,CR1R2,CHR4,COOH or a reactive functional derivative thereof and if desired, treating the compound obtained provided that R3 therein represents hydrogen, with a reactive ester of an alcohol R31OH where R31 represents a radical corresponding to the definition for R3 with the exception of hydrogen, in the presence of an acid binding agent.  Ring closure methods are more specifically (a) treating an alkyl ester of the b -amino propionic acid with an alkyl magnesium halide and hydrolysing the metal complex formed; (b) treating the acid chloride with a tertiary organic base; (c) heating, preferably under reduced pressure, an N-alkanoyl derivative of the free acid; and (d) treating the b -aminocarboxylic acid with phosphorus trichloride or with an N,N1-disubstituted carbodiimide.  The b -amino propionic acids used as starting materials are prepared by Hofmann degradation of the a ,a -disubstituted-succin-a -amide acid.  b -(p-Chlorophenyl)-b - ethyl-b -aminopropionic acid chloride hydrochloride is prepared from the acid and thionyl chloride.  Central depressant, soporific and sedative compositions comprise the azetidine-2-ones of the invention in the form of tablets, coated tablets or capsules for peroral administration.
Patent GB-1380604-A (GB)
Title: Hoist having yielding means for load limiting
IPC: B66D3/16
Filed: 1972-04-12
Abstract: 1380604 Slip clutches; clutch brake combinations EATON CORP 12 April 1972 [12 April 1971] 16872/72 Headings F2C and F2L [Also in Division B8] A load limiting device between the drum drive shaft 10 and a chain drive wheel 11 of a hoist, comprises a hub portion 13 of the drive wheel operatively connected to the drive shaft 10, a driving portion 14 mounted for rotation on said hub portion, a series of asymmetrical detent recesses 24 formed in the driving portion 14 for engagement with spring biased detents 17 mounted in openings 16 in the hub portion 13 to normally form a driving connection between the two portions, the detents yielding and moving into successive recesses to enable the driving portion 14 to rotate on the hub portion 13 when subjected to more than a pre-determined torque in the load lifting direction. The detents 17 comprising either rollers or balls normally seat in the bottom portion 25 of adjacently disposed recesses 24, but upon excessive torque due to lifting too high a load, the detents roll along relatively gradual inclines 26 of the recesses and out into the next recess providing a slipping action. During lowering of a load the detents engage the other relatively steep sides of the recesses which offer far greater resistance to any slipping action, so that the drum shaft 10 can be forced in the load lowering direction against any brake binding of the hoist brake mechanism. The hub portion 13 is screwed on to the shaft 10 and moves up to compress friction discs on to a ratchet disc and a further hub rotatable with the shaft, when the drive wheel 11 is rotated in the load lifting direction, the ratchet preventing reverse rotation of the shaft unless disconnected therefrom by unscrewing motion of the hub portion 13.
Patent GB-247455-A (GB)
Title: Improvements connected with tooth gearing
IPC: F16H3/24
Filed: 1925-07-01
Abstract: 247,455. Hughes, A. T., and Bennett, C. G. July 1, 1925. Variable-speed toothed gearing.- In spring gear wheels, employed, for example, to reduce shock when changing speed in variable-speed gearing, the toothed rim 9 is provided with projections 11 alternating with projections (not shown) on a flange 4 on a hub 3 splined or keyed to the shaft. Springs 14 are threaded under compression on a ring 13, which is passed through forks 12, 8 on the rim 9 and flange 4. The projections on the rim and hub engage to limit the compression of the springs and positively to take up the drive. The central chamber on the wheel, which is sealed by the use of a securing-plate 19 and nut 18, contains lubricant, which acts in the manner of a dash-pot to absorb shock. In the modification shown in Fig. 8, the flange 4 is dispensed with, and the projections from the hub 3 have convex driving-faces engaging concave faces on the projections on the rim to prevent relative radial movement of the hub and rim. The springs are secured to studs projecting laterally from the projections and are enclosed by a shield 20. The speed-gear shown is of the lay-shaft sliding spur-wheel type, with a clutch for direct drive.
Patent GB-545450-A (GB)
Title: Improvements in or relating to fluid-pressure operated starters for internal-combustion engines and to other fluid-pressure operated apparatus
IPC: F02N13/00
Filed: 1940-11-25
Abstract: 545,450. Explosion pumps. COSTA, H. DA, and PLESSEY CO., Ltd. Nov. 25, 1940, No. 16907. [Class 102 (ii)] [Also in Groups XXVII, XXVI and XXIX] An enginestarter or other fluid-pressure driving apparatus comprises a fluid-operated driving motor 25 for connection to the mechanism to be driven, and an auxiliary motor 15 in series with the first and driving a flywheel 23, both motors being actuated by a fluid pressure produced by a combustible change 13. As shown, the motor 15 is actuated by liquid from a chamber 10 provided with a spring-loaded piston 16 separating the liquid from the gases from the charge 13. At the end of its stroke, the piston 16 opens a gas exhaust valve 19 by engagement with an abutment 22 on the valve stem. The chamber 10 is connected by a pipe 14 to the motor 15, the exhaust pipe 24 of which leads to the motor 25 and thence by a pipe 27 to a reservoir 28, a connection 29 between the pipes 14, 27 being provided with a non-return valve 30. On firing a charge 13, the motor 15 and flywheel 23 are driven at high speed by liquid from the chamber 10 and the exhaust from the motor 15 drives the low-speed motor 25, which is provided with means for advancing the clutch 26 into engagement with a driven member. The drive is prolonged by the flywheel, the motor 15 acting to pump liquid around the circuit 24, 27, 29, 14. The motors and flywheel may be arranged in a housing 31 attached to an engine to be started. The charges 13 may be fired automatically in succession by means described in Specifications 513,179, [Group XXVII], or 562,807, [Group XXI]. Specification 545,048, [Group XXVII], also is referred to.
Patent GB-1039805-A (GB)
Title: Improvements in and relating to transmission mechanisms
IPC: F16H55/56
Filed: 1964-04-23
Abstract: 1,039,805. Reverse gear and control thereof; belt gearing. F. P. WHALEY. March 8, 1965 [April 23, 1964], No. 16936/64. Headings F2D and F2Q. A transmission comprises an input shaft 1 to which pulley part 2a and clutch part 3a are connected by bolts and a sleeve 1a, and a unit 4 which is slidable on but not rotatable relative to sleeve 1a; a belt 15 on a freely rotatable ring 23 engages a pulley splined on an output shaft which also has splined to it a disc 18 extending to between part 3a and unit 4. A grooved finger 5 is fixed to the sleeve 4a of unit 4 and extends through slots in sleeve 1a where it is acted on by a spring 7 and a plunger 6. Two weights 10 spring-biased toward sleeve 1a are each pivoted by two C-shaped levers 12 to sleeve 1a. A control rod 8 has a cam 9 engaging plunger 6 with forward, neutral, or reverse portions 9a, 9b, 9c. In operation, forward drive is obtained by moving plunger 6 inwards to bring unit 4 adjacent belt 15, as shaft 1 speeds up the weights 10 move out until the ends 13 of levers 12 engage behind finger 5 to move unit 4 to fully engage the belt to transmit forward drive. For reverse, spring 7 moves unit 4 to adjacent disc 18 and again when shaft 1 speeds up the ends 13 of levers 12 engage finger 5 to move unit 4 to grip disc 18 between unit 4 and clutch part 3a to transmit reverse drive. With unit 4 in the shown neutral position, then should shaft 1 be rotating above a certain speed the ends 13 of levers 12 engage the grooves in finger 5 to prevent the unit 4 being moved to transmit forward or reverse drive; similarly, the levers 12 prevent any movement of unit 4 when transmitting drive with input shaft 1 rotating above this certain speed. Finger 5 may be replaced by two parallel pins or by slots or recesses in sleeve 4a. The control rod 8 carries a pin working in a gate, Fig. 1 (not shown).
Patent GB-943148-A (GB)
Title: Improvements in or relating to bung-hole constructions and method of making the same
Inventor: STAP MAXIMILIAN
IPC: B65D39/08
Filed: 1961-05-10
Abstract: 943,148. Bushes for bungholes. VAN LEER INDUSTRIES Ltd. May 3, 1962 [May 10, 1961], No. 16993/61. Heading B8T. A bush 12 for a bunghole in a sheet metal wall 11 of a container comprises an annular portion 12a and a base portion 12b inside the container, Fig. 2. A resilient sealing gasket 14, of e.g. rubber, is protected from the contents of the container by a ring 15 of e.g. polyethylene with a thin protecting membrane 15a. In the embodiment of Fig. 6, the portion 12a is inserted into the container with the base portion 12b outside, and the gasket 14 and protecting ring 15 are located as shown.
Patent GB-818202-A (GB)
Title: Improvements in or relating to insulation to metal seals with a high melting point
IPC: C04B37/02
Filed: 1957-05-29
Abstract: 818,202. Ceramic-to-metal seals. COMPAGNIEGENERALE DE TELEGRAPHIE SANS FIL. May 29, 1957 [June 2, 1956], No. 17014/57. Class 36. A metal is sealed to an insulator, e.g. ceramic, by a naturally occurring double silicate of alumina and potash which is ground and formed into a thick paste, applied between the two parts to be united and then heated to fuse it. The preferred baking temperature is about 1250‹ C. and suitable silicates are lapidolite or obsidian. The metal may be tantalum, molybdenum or an iron-nickel-cobalt alloy and the insulator may be e.g. sapphire, spinel or sintered alumina; the parts to be sealed should have similar expansion coefficients.
Patent GB-838297-A (GB)
Title: Preparation of heat treatable titanium alloys
IPC: C22C14/00
Filed: 1956-06-01
Abstract: A method of reducing the embrittlement of titanium alloys which contain as a primary alloying element chromium, manganese, molybdenum, iron or nickel and contain 0.1-0.15% oxygen, the primary alloying element being present in a quantity which causes beta embrittlement on heating the titanium alloy in the beta phase region and then cooling, the method comprising adding to the alloy a substitutional element soluble in both alpha and beta titanium and having an affinity for oxygen greater than or equal to that of vanadium.  The substitutional element may, for example, be aluminium, vanadium or barium.  In a modification of this method titanium containing no primary alloying element but containing 0.1-0.15% of oxygen is alloyed with sufficient barium to ensure that oxygen in the metal is associated with the barium. The titanium may be sponge containing 0.02-0.05% carbon, 0.01-0.03% nitrogen, 0.1-0.15% oxygen and 0.005-0.01% hydrogen alloyed with 0.05-1.0% barium, the alloy being heated to 1350 DEG F. and slowly cooled to develop an impact strength of 146 foot-pounds at -40 DEG F. and above.  Reference has been directed by the Comptroller to Specification 782,503.
Patent GB-454182-A (GB)
Title: Improvements in or relating to electric discharge and like devices comprising a vitreous envelope
IPC: H01J61/54
Filed: 1935-06-13
Abstract: 454,182. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent - Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) June 13, 1935, No. 17085. Drawings to Specification. [Class 39 (i)] In electric discharge devices comprising a vitreous envelope and a conductor within the envelope extending from near one end of it to near the other end, the conductor being separated from the main space within the envelope by an insulating sheath, the insulating sheath is made of an enamel softening at a temperature much less than the softening temperature of the envelope, to which it is united at least in part. In one method, the conductor is coated with a thin layer (about 0À1 mm.) of enamel before being introduced into the envelope, and the envelope is then heated to produce union at the points of contact. In another method, the conductor is coated before introduction with powdered enamel deposited from a suspension, the enamel being fused by heating the envelope. The conductor may be in the form of a fine helix, forming an auxiliary electrode of a tubular discharge lamp. The construction enables the lamp to be bent to the desired shape after the conductor is sealed into it, and avoids the difficulty of introducing the conductor subsequently to the bending. The ends of the electrode may be free, or coated with enamel if a capacity connection is desired. The enamel may soften at 400-450‹ C. if the envelope is of glass softening at 600- 650‹ C.
Patent GB-574418-A (GB)
Title: Improvements in and relating to mast aerials
IPC: H01Q1/12
Filed: 1940-11-29
Abstract: 574,418. Aerials. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. Nov. 29, 1940, No. 17086. [Class 40 (v)] A mast aerial comprises an insulating tube having a metallic coating along part of its length. The tube may be of ebonite or synthetic resin or a fibrous material impregnated with synthetic resin, and the coating may be applied by dipping, spraying or electrolytically. Specification 502,460 is referred to.
Patent GB-405978-A (GB)
Title: Improvements in or relating to slip casting
IPC: C04B33/13
Filed: 1932-06-16
Abstract: Refractory ware is made from non plastic refractory oxides by a process which comprises preparing an aqueous slip having a pH value between 2 and 5 from the finely divided oxide, and then casting, drying, and firing in known manner.  The oxides mentioned are alumina preferred pH 2.0-4.0 and zirconia preferred pH 3.0-5.0.  A certain amount of coarse refractory oxide may with advantage be mixed with the fine oxide. The preferred proportions are 3 parts of coarse material, i.e. up to 2 mm. in diameter to 1 part of fine material, i.e. 0.5-2 microns in diameter.  In a modification instead of casting the slip it is filtered or otherwise dewatered, and the resulting wet solid material employed as a binding agent for coarser particles of the refractory metal oxide, the preferred proportions of coarse oxide and slip oxide being 75 : 25.  The resulting mixture is dried and fired in the usual way.  The surface of the ware produced by either of the above modifications may be glazed. Specifications 2626/11, [Class 22, Cements &c.], 382,071, and 391,703 are referred to.
Patent GB-652665-A (GB)
Title: Improvements in air cones for oil burners
IPC: F23D11/40
Filed: 1948-06-25
Abstract: 652,665. Oil burners. WATTS, A. E. June 25, 1948, No. 17115. [Class 75(i)] An oil burner blast tube comprises a tubular chamber the forward end of which carries an outwardly conical refractory member and encloses a fuel supply nozzle, ignition means, and a plurality of inwardly .projecting vanes to whirl the air and fuel on passage through the tube. a plurality of holes being formed in the said forward end of the chamber to open into the annular V-shaped space formed therebetween and the adjacent portion of the refractory member. Fig. 2 shows a cylindrical blast tube 19 of an oil burner having fitted at its end an air cone formed of two parts 13, 14 which interfit to provide flush inner and outer surfaces, an outwardly divergent refractory cone 17 being arranged over the air cone 13, 14. The inner cone-part 13 has a plurality of arcuate vanes 16 extending radially inwardly, with their rear edges curved to reduce air resistance, so that the air blast is caused to rotate after passing therethrough. The outer cone part 14 has an inwardly directed conical mouth which has a series of holes 15 arranged therearound to allow part of the rotating air blast to escape on to the sides of the refractory cone 17 and prevent the formation of any vacuum causing flame pulsation. The refractory cone may have plain outwardly divergent sides or its mouth may have a slight inward deflection, as shown, to produce a more concentrated flame. Fig. 7 shows an arrangement wherein the refractory cone is formed by a fire brick 25 having a moulded cone portion 26, the fire brick 25 forming part of a furnace wall. In a further arrangement the cylindrical mouth of the blast tube 19 is formed with the vanes 16 and holes 15, the two-part cone 13, 14 being omitted and the refractory cone 17 being fitted directly over the end of the blast tube.