baber/WOPTO huggingface dataset:
Patent GB-578936-A (GB)
Title: Improvements in or relating to electrical contacts
IPC: H01B1/00
Filed: 1944-07-06
Abstract: 578,936. Switch contacts. NEWTON, E. P. (Baker & Co., Inc., and American Platinum Works). July 6, 1944, No. 12961. [Class 38 (v)] [Also in Groups II and XXII] An electrical contact member comprises a compressed sintered powder mixture of silver and carbonyl iron. The mixture may comprise 5-50 per cent. carbonyl iron, but preferably from 10-40 per cent. In one example a mixture of 60 per cent. fine silver powder and 40 per cent. carbonyl iron powder was compressed at 12 tons per square inch and sintered for one hour at 940‹C. in a hydrogen atmosphere. The resulting billet was cold rolled to a reduction of 20 per cent. in thickness, annealed for half an hour at 900‹C. in a hydrogen atmosphere. Electrical contacts were stamped out of the sheet thus produced. Alternatively a billet compressed and sintered as above but containing 70 per cent. silver and 30 per cent. carbonyl iron was cold rolled at a pressure of 25 tons per square inch and then annealed as above. A contact comprising pure silver with a facing of the mixture was formed by spreading 90 parts by weight of silver powder in a rectangular die and covering with a layer of 10 parts by weight of a mixture of 60 per cent. silver powder and 40 per cent. carbonyl iron powder and then heating as in the first example. In an electrical make-andbreak system, one contact may comprise a mixture of silver and carbonyl iron and the other a dissimilar conducting material such as pure silver.
Patent GB-569893-A (GB)
Title: Novel or improved tool for use in inserting spring clips and the like
IPC: B25B27/00
Filed: 1943-08-11
Abstract: 569,893. Inserting spring rings. MEADOWS, Ltd., H., HAMILL, W. W., and BROWN, R. Aug. 11, 1943, No. 12975. [Class 61 (ii)] A device for manipulating a spring gudgeon pin retaining ring into its groove in the piston boss comprises means for compressing the spring ring and means for projecting it into the boss and it may be, in addition, a magazine for holding a number of the rings. In the plierslike device shown, the closing of the pivoted lever arm against the fixed arm 2 actuates a slide 11 in the body 1 to transfer a ring from the bottom of the magazine 4, compressing it meanwhile by a constricted passageway in a plate 14 into position below the spring-pressed plunger 16 of the projector, which plunger 16 had previously been raised on the opening movement of the pivoted lever arm by means of the wedge member 18 engaging the antifriction roller 21, and held raised by a spring catch. The device is applied to the piston and the spring catch released, permitting the spring- loaded plunger 16 to project the clip into position.
Patent GB-355729-A (GB)
Title: Improvements in junction boxes for joining electric cables and conductors
IPC: H02G3/08
Filed: 1930-04-28
Abstract: 355,729. Junction boxes. CLARK, A. C., 19, Meeson Road, West Ham, London. April 28, 1930, No. 13006. [Class 38 (i).] The body of a junction box is formed of sectors D upstanding from a flanged base D<1> of metal or insulation, that are screw threaded to receive a locking ring A and cover G. Metal or rubber covered leads E, E<1> enter through the gaps between the sectors D and rest upon a rubber ring C, a bonding ring F being clamped against them by the locking ring A. Variations in the diameter of the leads are accommodated by the rubber ring C. According to the Provisional Specification the ring C may be replaced by a ring of lead, blocks of rubber or lead, or springs, and the cover may be attached by bolts or clips.
Patent GB-347877-A (GB)
Title: Improvements in adjustable struts for supporting in an inclined position the head of a couch, sofa, or like article of furniture
IPC: A47C20/04
Filed: 1930-04-28
Abstract: 347,877. Furniture adjustments. HASENPFLUG, A., 20, Winterstrasse, Hasten, Remscheid, Germany. April 28, 1930, No. 13012. [Class 52 (ii).] An adjustable strut for the head of a couch or the like consists of two hingedly-connected arms a, b pivoted respectively to the underframe c and to a part d of the head. On the arm a is a U-section sliding catch f connected to the arm b by a link e bearing a spring catch k which holds the catch f in position. Stops h, i on the arm a limit the movement of the catch f.
Patent GB-242540-A (GB)
Title: Improvements in convertible cots
IPC: A47D7/01
Filed: 1925-05-19
Abstract: 242,540. Freakes, M. May 19, 1925. Convertible bedsteads fitted with linen receptacles; dropside cots.-A cot for an infant convertible into a full-sized cot comprises head and foot frames 1, 2 connected by four rods 4, passed through holes 24, 24<1> and secured by nut 5, the upper pair of rods 4 supporting a canvas trough 3 forming the bed proper, and the lower pair of rods carrying a trough 9 serving as a receptacle for linen, napkins, &c. The nuts may be formed of wood with internallv screwed flanged metal bushes. To form a full-sized cot the rods 4 are replaced by the usual longitudinal cot sides 25, 26 after the two side members 16 of the foot frame 2 have been replaced by longer side members 17. The members 16, 17 are secured to the frame 2 by rods passing through the cross-members 20. The side 26 is secured by rods 27 passing through eyes 28 and the movable side 25 by rods 29 fixed in eves 30. The frames 1 and 2 may be provided with the usual fittings 31 for the longitudinal rails carrying the mattress, or these fittings may be inserted in the holes 24, 24<1>. The foot frame of the full-sized cot may be used for the infants' cot, in which case the side members of the frame need not be removable.
Patent GB-345140-A (GB)
Title: Improvements in or relating to dictation machines
Filed: 1930-04-28
Abstract: 345,140. Dictating-machines. DICTAPHONE CORPORATION, 375, Howard Avenue, Bridgeport, Connecticut, U.S.A.- (Assignees of Roberts, H. P. ; 1213, East 23rd Street, Brooklyn, New York, U.S.A.) April 28, 1930, No. 13048. Convention date, May 11, 1929. [Class 40 (ii).] Dictation machines with record ejecting mechanism are constructed so that the ejector is held against actuation until the sound-box carriage is returned to its starting position, and provision is made for lifting the stylus clear of the record by the action of releasing the carriage to permit of its return to starting position. The sound-box carriage 18 is guided on rods 19, 20 and traversed by the engagement of a part nut member 22 with a screw 21 driven from the mandrel shaft 12 which has a flange 39 against which the end of the record 29 abuts. The record ejector mechanism comprises a head 38 on a plunger 36 connected to a slide bar 41 which can be reciprocated by a pivoted lever 42 provided with an upturned thumb-piece 45, but the ejector head 38 is normally blocked against movement by a pivoted gravity-actuated lever 52 from which a bevelled finger 56 projects. When it is desired to change a record, a control lever 30 pivoted on the guide-rod 19 and extending through a slot on the carriage is rocked so that one lug 32 on the lever rocks a pivoted weight bar 28 carrying the stylus 24 so that this is lifted clear of the record and another lug 34 on the lever rocks the part nut member 22 out of engagement with the feed screw 21. The carriage can now be moved back to starting position whereupon the part 55 of the carriage comes against the finger 56 and rocks the lever 52 clear of the ejector head which can now be operated by the thumb-piece 45 of the lever 42.
Patent GB-430854-A (GB)
Title: Improvements relating to liquid clarifying apparatus
IPC: C02F1/40
Filed: 1934-05-01
Abstract: 430,854. Gravity-separation apparatus. DAVIS, C., The Cedars, Redditch Road, King's Norton, Birmingham, and FARRER, W. G., The Ridge, Warwick Road, Solihull, near Birmingham. May 1, 1934, No. 13055. [Class 111] Means for discharging scum from a settling tank comprise a flexible or jointed pipe 8 with its open end 12 normally raised above the liquid level by a float 11 but depressed by a contact device 13 on a travelling structural, such as that of a rotary or reciprocating sludge-collector, which carries a scum plate 7 to direct the scum towards the wall of the tank for discharge through the pipe 8. The device is shown in combination with a rotary sludge collector, the bridge 1 of which has a driven shaft 6 with wheels 5 travelling on a rail on the wall 4 of the tank. The mouth of the pipe 8 is usually depressed as the bridge approaches the pipe, but a hand lever 20 and a link 18 may be provided to raise the contact device 13 to an inoperative position. Besides the scum-collecting plate 7 the bridge also carries a sweep 24 fixed on a vertical shaft 26 with its free end in contact with the end of the plate 7. As the bridge approaches the pipe 8 a toothed wheel 37 on a shaft 30 engages pins 38, forming a rack, on the tank wall and turns the shaft 26 by means of an intermediate toothed wheel and a toothed quadrant, so that the sweep 24 moves into the position shown in dotted lines and directs the scum into the pipe 8. A hand lever is provided for moving the intermediate toothed wheel into an inoperative position. The sweep 24 is returned to its normal position by a lever 43, when the latter contacts with a stop 44 on the tank wall.
Patent GB-579741-A (GB)
Title: The manufacture of spontaneously inflammable powders
IPC: C06C15/00
Filed: 1942-09-16
Abstract: 579,741. Pyrophoric incendiary compositions. CAWLEY, 'C. M., CARLILE, J. H. G., and WALLS, L. P. Sept. 16, 1942, No. 13062. [Class 9 (ii)] An incendiary powder comprises a small proportion of yellow phosphorus thoroughly distributed in a combustible powder,-the temperature of inflammation of which is below the temperature developed as a result of the oxidation of the phosphorus on exposure to the air. The phosphorus thus serves as an igniter for the combustible powder. The combustible substance may be magnesium or thermite. The powder may contain a diluent such as magnesia, starch, boric acid or pulverized coal. The phosphorus may be present in the form of a deposit on the combustible powder or on the diluent; such a deposit may be obtained by suspending the powder or diluent in a carbon disulphide solution of phosphorus and evaporating the solvent in the absence of air ; by allowing some solvent to remain, a delay of, say, 2 minutes occurs between exposure to air and inflammation. When the deposit is made on the diluent, the igniter thus made may be safely stored and handled and mixed with the combustible powder immediately before use.
Patent GB-550576-A (GB)
Title: Improvements in and relating to overall chains or girdles for road vehicle wheels
IPC: B60C27/08
Filed: 1941-10-10
Abstract: 550,576. Wheel tyres. KENNEDY, D. S. Oct. 10, 1941, No. 13086. [Class 144 (ii)] In an overall tread band comprising twisted bar shoes a with radial end tabs c as described in Specifications 465,639, 510,977 and 539,065, the shoes are connected with side chains g by U- or V-shaped shackles e threaded through the shoe tabs and fitted with washer plates h retained by nuts. The chains may be coupled by a device as set forth in Specification 506,086, [Group XXV], and a similar coupling may be employed for a tensioning cable k or inner side chain connected by links l with the outer chain. The threaded ends of the shackles are preferably parallel and are prevented from spreading apart by the washer plates.
Patent GB-131215-A (GB)
IPC: A61G7/02
Abstract: 131,215. Ford, J. Nov. 29, 1918. Invalids' bedsteads; bedsteads combincd with sanitary convenience arrangements.-A hospital bed, operating table, &c. is provided with a flexible element 4, having its ends fastened to the supporting structures 5 and provided with a loop 9 between its ends to constitute a well or recess, together with a frame 15 for holding the loop open. The rollers 11 on the frame run on the side bars 3 so that the position of the well can be varied. In the modification shown in Fig. 3, a. more rigid surface is obtained by supporting the upper flexible element on a flexible chain of rollers 20. The well or recess facilitates the use of a bed-pan, or the changing of bed-sheets, or the application of bandages.
Patent GB-131348-A (GB)
IPC: G05D13/00
Abstract: 131,348. Blum, P. July 7, 1917, [Convention date]. Differential governors; maintaining the speeds of engines constant.-Consists in means for maintaining the speeds of one or more motors constant with regard to some moving mechanism, which may be itself a motor, in which the controlling- mechanism and the motors generate pressures, the differences between which are used to control the motors. In the Figure, a is a motor driving a centrifugal pump c, and b is a motor, the speed of which is to be maintained constant with regard to the motor a. The motor b also drives a centrifugal pump c, and the pressures created by these two pumps act on pistons h connected together and to a lever i operating the speed-controlling device of the motor b. By means of valves f the pressures in the two pipes g are adjusted. A reciprocating-pump or other pressureproducing means may replace the centrifugal pump.
Patent GB-989155-A (GB)
Title: Solvent compositions
Inventor: THOMAS BLEDDYN JAMES
IPC: C11D7/50
Filed: 1964-03-31
Abstract: A solvent composition which is particularly suitable for vapour phase degreasing or for stripping resinous soldering fluxes comprises (a) 1,1,2 - trichloro - 1,2,2 - trifluoroethane and (b) trans-1,2-dichloroethylene.  The preferred compositions contain (a) in an amount of more than 25% by weight of the composition, and an especially suitable composition consists of the azeotropic composition boiling at 44.5 DEG  C. in which (a) forms about 60% and (b) about 40% by weight.
Patent GB-402798-A (GB)
Title: Improvements in and relating to the suspension of motor vehicle frames
IPC: B60G11/10
Filed: 1932-05-06
Abstract: 402,798. Vehicle suspensions. KONIG, G., 61, Podbielski-Allee, Dahlem, and SCHULZ, H., 5, Rueckerstrasse, Coepenik, both in Berlin. May 6, 1932, No. 13155. Convention date, May 6, 1931. [Classes 108 (ii) and 108 (iii).] Vertical supports 5, 6 pivoted on the wheel axles of a vehicle are hingedly connected at their upper ends to supporting-springs, by laminated or helical springs, and at their lower ends to one end of rods 15, 16 directed towards the transverse axis through the centre of gravity 4 of the vehicle at normal loading and hinged at the other end to the vehicle frame 3, the upper ends of the supports 15, 16 being in or above the horizontal plane through-the centre of gravity 4. The laminated springs 7 shown are suspended from upwardly and slightly outwardly directed carriers 9, 10 in the vehicle frame and the rods may be connected to the frame 3 and the supports 5, 6 by ball- and-socket joints. The Specification as open to inspection under Sect. 91 comprises also other means for enabling the vehicle to oscillate about a transverse axis. The inclined radius rods 27, Fig. 4 (Cancelled), connect the frame with the wheel-axle carrier 26 but the frame 25 is supported by shackles 29 from laminated springs 28 mounted on the carrier 26. The shackles may be slidable on bolts 31 mounted in double bearings 32 fixed to the vehicle frame. Fig. 5a (Cancelled) shows another method of connecting the shackles 37 of the spring 40 to the frame, each shackle being mounted between two arms 35 of a lever, the boss of which is mounted on a vertical pivot 36 within a depending bracket 34 on the frame. This subject-matter does not appear in the Specification as accepted.
Patent GB-888782-A (GB)
Title: Continuous chromatographic analysis apparatus and method
IPC: G01N35/08
Filed: 1960-04-13
Abstract: Part of the effluent from a chromatographic column 10 is automatically treated for colorimetric analysis and passed through the flow cell 94 of a colorimeter of an automatic analyser for quantitative analysis of a known ingredient and part of said effluent is collected in measured fractions by an automatic fraction collector 30.  In the illustrated embodiment, to which the numerals relate (see Fig. 1), eluting liquid is <PICT:0888782/III/1> passed through flexible tube 58 (of a roller pump 46) and line 42 to the column, which is provided with a jacket 12 through which hot water is circulated.  The effluent is passed to one limb 32 of a device 22, which is open at 38 to the atmosphere, and thence passes into the other limb (which is vented at 37) and out through outlet tubes 24, 26.  The latter leads through a funnel 28 to the fraction collector, whilst the former leads via flexible tube 48 of said pump, mixing coils 84 and 88, heater 90 and cooling coil 92 to the first cell 94 of a series of three similar cells, each having associated light sources of different wave lengths, to provide chromatographs of different constituents on the corresponding recorders. (Alternatively, a single colorimeter may be used with a single source, emitting a plurality of wave lengths, and a multi-trace recorder.)  The liquid in line 48 is treated for colorimetric analysis by addition of a diluent (ethylene glycol monomethyl ether) through line 52 and an inert gas, e.g. air, through line 50, to divide the stream into segments.  Reagents (triketohydrindene and hydrindantin) may be added to the stream via tubes 54 and 56 and mixing coil 86.  The indicated compounds are added when amino acids are to be estimated.  The fractions collected may be used for the determination of unknown compounds in the effluent or to check the automatic colorimetric result.  Specification 689,079 is referred to. Reference has been directed by the Comptroller to Specification 798,920.
Patent GB-349260-A (GB)
Title: Improvements in or relating to means for utilizing tidal energy
IPC: F03B13/26
Filed: 1930-04-29
Abstract: 349,260. Hydraulic turbines. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, and SEEWER, P. W., 11, Wildwood Road, Hampstead Garden Suburb, both in London. April 29, 1930, No. 13164. [Class 110 (iii).] Apparatus for utilizing tidal energy comprises a turbine 4, Fig. 1, located between passages 7, 8 and 9, 10 in a dam 1 disposed between tidal water and a reservoir, and rotatable pipe bends &c. 11, 12 adapted to place opposite ends of the turbine passage into communication with either side of the dam. By arranging the two portions of each through passage at an angle of 120‹ to one another the bends may be moved to assume a third position, Fig. 5, in which they act as valves for shutting off the water supply to the turbine. Additional sluice valves may be provided in the upper passage for use when dismantling the apparatus.
Patent GB-132266-A (GB)
IPC: F27B14/14
Abstract: 132,266. Gaskill, J. A. Sept. 3, 1918, [Convention date]. Crucible furnaces. - Relates to a liquid or gaseous fuel furnace for melting steel &c., rereducing refractory ores, annealing or heat-treating metal articles, e.g. high-speed tools and dies, milling-cutters, &c., and heat-treating metals where complete exclusion of cold air is required, and consists of means for heating the air supply for combustion, a releasable support for the crucible, and a special shape of furnace chamber. The furnace chamber is surrounded by a hollow annular casing to the lower end of which air is admitted tangentially by a pipe P. The air, thus given a whirling motion round the hot furnace wall, is led from the top of the casing by pipes L to the burners N, which enter the furnace chamber tangentially but in an opposite sense to the pipe P. The refractory lining of the furnace chamber has a thickened intermediate part of which the lower shoulder S<2> deflects the flame &c. towards the crucible, while the upper shoulder S' gives rise to an expansion and retarding chamber for the flame and gases. The crucible support, formed with an opening E<1>, rests on doors C hinged at D and held in place by props G. The removable furnace cover has a central outlet T. As shown, the fuel gas or oil is introduced at the burners. According to the Specification as open to inspection under Sect. 91 (3) (a) the fuel may alternatively be supplied with the air to the heating- casing. This subject-matter does not appear in the Specification as accepted.
Patent GB-883058-A (GB)
Title: Improvements in or relating to the separation of sterols
IPC: C07J9/00
Filed: 1958-04-25
Abstract: Stigmasterol and sitosterols are separated from a solid stigmasterol and sitosterol starting mixture in a process which comprises contacting the starting solid stigmasterol and sitosterols mixture with a selective organic solvent as hereinafter defined to cause selective extraction of the sitosterols from the stigmasterol, separating the solid material phase which is enriched in stigmasterol content from the organic solvent phase which is enriched in sitosterols content and continuing the extraction process in countercurrent manner, passing said solid material phase through a series of enriching stages to a stigmasterol enriched end product, and passing said organic solvent phase through a series of enriching stages in reverse order and then through a series of stripping stages from each of which is obtained a stigmasterol poor-solution and a cake stripped therefrom containing stigmasterol, said solutions and said stripped cakes travelling countercurrently with respect to each other, wherein sufficient water is added to at least one of the first two enriching or stripping stages to increase the beta-value of the said selective organic solvent and/or at least one of the said organic solvent phases is bypassed around at least one of the stigmasterol enriched cakes in such a manner as to substantially match the stigmasterol content of the solids dissolved in said organic solvent phases with the stigmasterol content of the cakes to be extracted thereby.  The solvents employed are selective organic solvents having a greater affinity for the residual sterols, i.e. sitosterols and these have a relative distribution coefficient greater than 1.5 at a volume of solvent which dissolves about one-half of the total solids of a sample of the sterol mixture employed as starting mixture in the process.  Representative solvents are lower aliphatic hydrocarbons, halogenated lower aliphatic hydrocarbons, and mixtures thereof, lower aromatic hydrocarbons, lower aliphatic ketones, halogenated lower aliphatic hydrocarbons, lower aliphatic ethers and lower aliphatic esters.  Specification 774,466 is referred to.
Patent GB-133144-A (GB)
IPC: F02B43/00
Abstract: 133,144. Bird, C. K. Oct. 1, 1918. Valves.-In two- and four-stroke-cycle engines, air and combustible, such as gas or a rich mixture of hydrocarbon fuel and air, are compressed separately, the air being subsequently forced into the combustible, which is ignited by the heat of compression of the air or by other means. In the two-stroke-cycle engine shown in Fig. 3, gaseous fuel is compressed in a cylinder a and delivered to a combustion cylinder c through a passage d. Air is compressed in a cylinder b and stored in a cavity in the hollow interior of a piston e having ports e<1>, e<1>, which register with a port h in the pump cylinder b and with a port k<1> in the combustion cylinder. A modified form of two-stroke-cycle engine is described, in which air and gaseous-fuel pumps are located one on each side of a combustion cylinder, communication between which and the air and fuel pumps is controlled by oscillating valves in the heads of the cylinders. A four-stroke-cycle engine is described, in which air and gaseous fuel are compressed in separate cylinders, the fuel being compressed into the interior of a hollow oscillating valve which is placed in communication with the air-compression cylinder in which combustion occurs. A modified form of four-stroke-cycle engine is described, in which a fuel pump piston is actuated from the crank-shaft through half-speed gearing, the fuel being stored in the interior of the piston until the interior is placed in communication with a cylinder in which air is compressed prior to combustion..