baber/WOPTO huggingface dataset:
Patent GB-293912-A (GB)
Title: Improvements in sound amplifying horns and method of producing sound amplifying horns
IPC: H04R1/30
Filed: 1927-04-20
Abstract: 293,912. Hawley, J. B. April 20, 1927. Moulding pulp.- Sound magnifying horns are built up of layers of fibrous accretions of different degrees of compactness by sucking through a porous horn - shaped former liquids containing fibres in suspension. The former 1, Fig. 2, comprises a core 7 with grooved sides connecting with a hollow bottom plate 6. Over the cora are placed a perforated sheet-metal form 9 and a fine-mesh wire netting 10. The former 1 is then lowered into a bath 3, Fig. 1, containing in suspension fibrous felt, cotton linters, &c., the whole being agitated by a vibrating apparatus 12 or by other means such as jets of air forced into the bath. Suction applied to the pipe 2 causes fibres to be deposited on the netting 10, and when a desired thickness is obtained the former is transferred to another bath containing, say, paper pulp in suspension and a further layer of fibres which will be partly interlaced with the other layer is deposited. The layers are dried and partly compacted by passing steam through the former, a rubber band 11 which during the deposition covered the lower rim of the core 7 being bent upwards during the steam passage, to give proper shape to the rim of the horn. When dry, the former 1 is transferred to a burnishing apparatus comprising a bracket 19, Fig. 5, slidable along a shaft 18 so as to bring the gear 20 into engagement with the pinion 21 and the horn surface' into contact with the burnisher 23, the latter being made of a number of sections so that corresponding parts of burnisher and horn may travel at substantially the same speed. This operation renders the outer layer hard, the inner remaining relatively soft. Finally, one or both horn surfaces may be coated by metallizing, varnishing &c. The deposition process may be reversed, so that the fibres are deposited on the interior of a porous hollow core. Several layers of varying degrees of hardness may be employed by using suspensions of different grades of material, the fineness of the material being determined by the time the material is beaten when being prepared.
Patent GB-1253582-A (GB)
Title: Closure devices of water flow regulators
IPC: G05D7/01
Filed: 1969-02-27
Abstract: 1,253,582. Valves. SAUNIER DUVAL. 27 Feb., 1969 [29 Feb., 1968], No. 10672/69. Heading F2V. A closure device for a flow regulator in a water heater has a piston 1 freely slidable in a sheath 3 and a split ring 4 received in a groove in the sheath or, as shown, a groove between the sheath end and an annular cover 7. The ring acts to seal the piston to the sheath and as a scraper to remove deposits from the piston. The piston is actuated by a diaphragm 2 responsive to water flow in a Venturi tube downstream of the piston and seats in the orifice of the seat 10 in its outermost position.
Patent GB-747895-A (GB)
Title: Fog-shield for a vehicle lamp
IPC: B60Q1/18
Filed: 1954-04-12
Abstract: 747,895. Vehicle lamps. SCHMITZ. U., [trading as MALI MELALLWAREN-APPARATEBAU.LINDAU]. April 12, 1954 No. 10676/54. Class 75(4). A detachable shield for a vehicle lamp 3 comprises a screen 4 lying close to and parallel to the lamp glass 1 and a hood 5 extending forwardly and downwardly from the lower edge of the screen to terminate in the central horizontal plane of the lamp, the shield blanking off all light projection above the central horizontal plane of the lamp. The shield may be made of rubber and has suction cups 7 for engaging the lamp glass 1 and a flange 6 for gripping over the upper edge of the lamp 3. The screen is sickle shaped and the upper edge of the hood is curved to correspond with the lower edge of the screen.
Patent GB-807346-A (GB)
Title: Improvements in or relating to short wave wireless aerials
Inventor: DURANT ERNEST WILLIAM
IPC: H01Q19/30
Filed: 1956-04-07
Abstract: 807,346. Aerials. TELERECTION Ltd. July 8, 1957 [April 7, 1956], No. 10687/56. Class 40 (7). An aerial for use at high frequencies consists of dipoles 7 connected together by means of adjustable delta matching sections 10, Fig. 1, which are connected by universal joints to a junction box 11. The free ends of the delta sections are slidably mounted on the dipoles and thus the matching to the feeder, connected to the junction box, can be correctly adjusted. The junction box takes up such position as the adjustment of the delta sections require. Directors and a reflector may be added as shown. The dipole need not be insulated from the supporting bars owing to the use of the delta sections.
Patent GB-106971-A (GB)
IPC: H01H71/10
Abstract: 106,971. Switchgear & Cowans, and Rodway, E. D. Feb. 14, 1917. Automatic circuit-breakers.-The contact carrier h, provided with contacts o, is pivoted to the armature g of an electro-magnet b and is held in the closed position by means of a catch j, pivoted in a notch therein and engaging a bar n fixed in the base a. When, upon overload, the armature is attracted towards the core c, the contact carrier is moved upwards, carrying the catch clear of the pin, whereupon it falls open under the influence of gravity or of a spring. Two or more of the switches may be combined to form a double or multiple pole circuit breaker.
Patent GB-497576-A (GB)
Title: Improvements in or relating to pressure regulating apparatus for hydraulically actuated clutches
IPC: F16D48/02
Filed: 1937-04-15
Abstract: 497,576. Operating clutches. BRAMBLE, W. H., and RUSTON & HORNSBY, Ltd. April 15, 1937, No. 10703. [Class 80 (ii)] In mechanism wherein a clutch is engaged by oil or other liquid under pressure, the liquid is supplied from a pump or accumulator or both, at the full pressure required to maintain the clutch engaged, to a duct 31 from which it passes through an adjustably-loaded reducing valve 37 to a duct 33 leading, through a duct 36 and a control valve (not shown) to the clutch to effect engagement of the latter at a predetermined low pressure, while a byepass 35 between the ducts 31 and 33, controlled by an adjustable needle valve 45, permits the pressure in the duct 33 to build up progressively to the full engagement pressure. Specification 497,578 is referred to.
Patent GB-815516-A (GB)
Title: Remote control manipulator
IPC: B25J19/00
Filed: 1956-04-09
Abstract: 815,516. Handling materials in radioactive environment. GOERTZ, R. C., SCHMITT, R. G., and OLSEN, R. A. April 9. 1956 [April 12, 1955], No. 10721/56. Class 39(4). The subject matter of this Specification is substantially the same as that described in Specification 815,515 but the claims differ.
Patent GB-436380-A (GB)
Title: Process for the production of colloidal fuel
IPC: C10L1/32
Filed: 1934-04-10
Abstract: Light hydrocarbons and fuel consisting of solid carbonaceous particles colloidally dispersed in oil are obtained by pressure cracking a suspension of coal in oil by bringing a thin layer into contact with a heated surface and simultaneously subjecting it to centrifugal force sufficient to separate gas and vapour from the suspension, but insufficient to separate the coal particles from the oil.  Preferably the coal-oil layer is mechanically triturated during the operation, and the colloidal fuel produced is allowed to expand between two discs between which it is further triturated by rotation of at least one of the discs.  Suitably, the suspension of coal in oil is pumped upwards between a stationary heated cylinder of 100 cm. diameter and an inner longitudinally flanged cylinder of 98 cm. diameter rotated to make 2 rev. per sec.  The mixture is passed at 450 DEG  C. between round steel discs in an expansion chamber, the upper disc being rotated under the pressure of a regulating weight; the fuel is thus cooled to about 300 DEG  C., and all hydrocarbons boiling up to 300 DEG  C. are removed and used as anti-knock motor fuels.
Patent GB-916058-A (GB)
Title: Process for the preparation of 2-bromo 3-halo propene-1
Inventor: PEER HENDRICUS GERARDUS
IPC: C07C17/02
Filed: 1960-03-28
Abstract: 2,3-dibromopropene-1 and 2-bromo-3-chloropropene-1 are prepared by reacting allene with bromine and a mixture of bromine and chlorine respectively in the presence of an inert solvent. Preferred inert solvents are methylene chloride, chloroform, carbon tetrachloride and glacial acetic acid, the last being used only for the dibromo compound.  Ether, benzene, dioxane, ethyl acetate and carbon disulphide are also specified as inert solvents.  In examples, allene is added to bromine in glacial acetic acid until the solution becomes colourless, the solution is poured into ice water, ether added and 2,3-dibromopropene separated from the ethereal layer by distillation. 2-bromo-3-chloropropene is prepared by adding an equimolar solution of bromine and chlorine in carbon tetrachloride to allene in carbon tetrachloride.  A small amount of 1,2,2,3-tetrabromopropane and 2,3-dichloropropene may be formed. If the last preparation is repeated using acetic acid as solvent, 2-bromo-3-acetoxy propene is formed.
Patent GB-581860-A (GB)
Title: Improvements in or relating to domestic airing or drying racks or devices
IPC: D06F57/12
Filed: 1944-06-07
Abstract: 581,860. Airing racks. HANCOCK. A. L. June 7, 1944, No. 10915. [Class 52 (v)] A domestic airing rack consists of a horizontal frame 1 having, at each end, a bar 2 to the ends of which are pivoted links 3, 4 pivoted at their lower ends to a wall bracket 5. The link 4 is longer than the link 3 and the arrangement is such that the frame 1 remains substantially horizontal when moved from its upper position near the wall, to a lower position away from the wall. Cords attached to the links 4 and passing over pulleys to a winding drum 10, to raise and lower the frame, may be provided.
Patent GB-331008-A (GB)
Title: Improvements in and relating to the duplication of sound records obtained by magnetic means
IPC: G11B5/86
Filed: 1929-04-09
Abstract: 331,008. Stille, C. Oct. 20, 1928, [Convention date]. Magnetic records, duplicating.-Relates tn the duplication of magnetic sound records in the form of steel wires or bands. According to the invention, a number of duplicates of a record of this kind are simultaneously produced by passing the wires or bands 8, on which the copies are to be made, parallel to each other and close together across the wide pole 7 of a recording electromagnet 6 which is influenced by currents derived by moving the master record 2 past a reproducing magnet 4. In the arrangement shown, the wires 8 are guided by eyes 9 over the magnet pole 7, which is preferably formed like a comb, between the teeth of which the wires pass. The wires 8 are wound on to reels 11, which are mounted on a motor-driven shaft 12 which also carries the reel 3 on to which the master record 2 is wound. The magnet 4, past which the record 2 is moved, is connected to an amplifier 5, the output of which is connected to the magnet 6. A second magnet with a comb-like pole similar to that of the magnet 6 may be arranged over the latter, the teeth of the poles being adjacent.
Patent GB-562880-A (GB)
Title: Pitot tubes
IPC: G01P5/165
Filed: 1942-08-06
Abstract: 562,880. Pitot-tubes. DAIBER, E. Aug. 6, 1942, No. 10998. [Class 69 ( A Pitot-tube, more particularly for use in indicating the speed of aircraft, comprises a brass or like tube 11 with a forward dynamic pressure opening 13, the tube being connected as by solder to a rear casting &c. 14 with a transverse wall 17 ; within the tube 11, conducting blocks 39, 42, of brass, copper, &c., are fixed as by solder, the blocks containing electric heating elements 40, 41, and static pressure openings 34, 35, are provided in the tube 11 between the blocks 39, 42. The dynamic pressure is communicated to the speed indicator through a metallic conduit 22 with a downturned front end, through passages 24, 26, in the block 42 and through a conduit 27 ; the static pressure is communicated through passages 32 outside the block 42 and through a conduit 30. The forward end of the block 39 and the rear wall of the block 42 form baffles to trap moisture which is discharged through openings 36, 37. The tube 11 may form the return conductor from the heating elements 40, 41, or a separate return conductor may be provided.
Patent GB-377256-A (GB)
Title: Improvements in the manufacture of meat rolls
IPC: A23L13/60
Filed: 1931-04-15
Abstract: 377,256. Meat rolls etc.; food preparations. VICKERS, H., Barnfield, Bury New Road, Prestwich, Lancashire. April 15, 1931, No. 11120. Addition to 341,760. [Classes 28 (ii) and 49.] A compound meat or fish roll or structure of elongated form is formed by filling a mould or container with alternate layers of meat paste 2 and coarsely chopped meat &c. 1 and consolidating them into a roll in which the relative proportions of chopped meat and paste are the same in each transverse slice. A layer of chopped meat may be sandwiched between two layers of paste or a layer of paste between two layers of chopped meat. The rolls may be either cylindrical or cuboidal in shape and may be garnished with crumbs. Gelatine may be used to enable setting to take place on cooling. Specification 23216/14, [Class 49, Food &c.], is referred to.
Patent GB-1184113-A (GB)
Title: Improvements in or relating to Apparatus and Method for Suppressing Shock in Press or Like Machines
Inventor: KAISER WILLARD DONALD
IPC: B21D28/20
Filed: 1967-03-09
Abstract: 1,184,113. Punching. MINSTER MACHINE CO. 9 March, 1967 [12 May, 1966], No. 11148/67. Heading B3W. [Also in Division F2] A shock-absorber for damping out rebound vibrations at the point of breakthrough of a workpiece in a press (12), Fig. 3, not shown, comprises a variable volume chamber 28 which is filled with hydraulic fluid 30, is formed by a piston and cylinder unit 24, 26, and has at least one metering orifice 40 through which fluid is exhausted, e.g. when a slide (16) actuates a strike plate 22 attached to the piston 24, a metering pin 36, carried by the piston 24, moving into restricting relation with the corresponding orifice 40 as the slide moves downwardly, and the orifice 40 being restricted to the maximum extent, at the point of breakthrough, when the maximum diameter portion 57 of the pin 36 moves into the orifice 40, and means for an inflow of fluid to the chamber 28, e.g. a valve 80, when the slide (16) moves upwardly. Fluid is returned to the expanding chamber 28 from an accumulator (45) through passages (44, 43) controlled by the spring- loaded, one-way valve 80, upward movement of the piston 24 being restricted by a stop ring 90. The metering pins 36, which have threaded engagement with the piston 24 and have seals 52, may have constant-diameter operating portions. The piston 24 does not bottom on the base 76 of the cylinder. In a modification, Fig. 4, not shown, the shock-absorber has a single metering pin (236) axially adjustable by a nut (235) and two one-way re-charging valves (257), the variable volume chamber (228) discharging into a chamber (245) which is separated from a pneumatic spring chamber (253) by a movable wall (247). In a further modification, Fig. 7, not shown, the shock absorber piston (326) is not operated until the piston (320) of a counterbalance air spring (322) has moved downwardly its full stroke, whereupon the piston (320) contacts the piston (326) and the damping action occurs in a manner substantially as described in the previous embodiments. In an alternative arrangement, Fig. 9, not shown, the metering pin (418) can be adjusted from outside of the shock absorber a single unit only of which is necessary to effect damping.
Patent GB-347852-A (GB)
Title: Improvements in or relating to diaphragms for gramophone sound-boxes
IPC: H04R7/00
Filed: 1930-04-08
Abstract: 347,852. Diaphragms. LIMIT ENGINEERING CO., Ltd., and COLLINS, A. L., 17, Albion Street, King's Cross, London. April 8, 1930, No. 11157. [Class 40 (iv).] Relates to aluminium or other thin sheet metal diaphragms for gramophone sound-boxes of the kind in which the central portion 1 of the diaphragm is rendered substantially rigid by forming it with concentric corrugations 2 and by securing thereto a similarly formed reinforcing disc 5 and consists in forming the relatively flexible outer portion 3 with spaced ribs or grooves 4 which extend radially or otherwise outwardly from positions adjacent the inner edge of the flexible portion to positions adjacent the outer edge thereof, each rib or groove being formed with oppositely directed concentric or tangential continuations 4a, 4b at the respective inner and outer ends. The point of attachment 6 of the stylus bar may be eccentrically arranged as described in Specification 311,025, [Class 40 (iv), Telephones &c.].
Patent GB-1102926-A (GB)
Title: Improvements in or relating to magnetic chucks
Inventor: TURTON GEORGE WALTER
IPC: B23Q3/154
Filed: 1965-03-17
Abstract: 1,102,926. Magnetic work-holders. J. H. HUMPHREYS & SONS Ltd. 28 Feb., 1966 [17 March, 1965], No. 11214/65. Heading H1P. A elongate magnetic chuck comprises a top plate divided into transverse polepieces (11) by parallel slots (10) cut in the plate and filled with paramagnetic material, each slot being interrupted in its length to provide a key (12) between adjoining polepieces. Figs. 1, 4 and 5 (not shown), illustrate various patterns of keys and polepieces, the keys being staggered to prevent them forming a continuous strip running the full length of the plate. The chuck may be of the permanent magnet or electromagnet type.
Patent GB-251640-A (GB)
Title: Improvements in water tube boilers
IPC: F22B17/10
Filed: 1926-04-28
Abstract: 251,640. Kr÷pelin., F. April 28, 1925, [Convention date]. Moderating superheat.-In a watertube boiler of the horizontal type, superheater tubes are connected directly to the front headers which are arranged horizontally and in two groups one behind the other. The water-tubes 1 are inserted at each end in square headers 2, 3 connected by tubes 6, 7. The superheater tubes 11 are connected to the upper front headers 4, and communicate with two steam collectors 12, 13. The back headers are connected to a water drum 9. The collectors are connected to the water drum 9 by a pipe 15 fitted with a valve 16. A pipe 17 with a stop valve 18 and connected to the feed-water pipe 10 opens into the superheater headers 4.
Patent GB-1049586-A (GB)
Title: Improvements in or relating to glass fibres for optical devices
IPC: C03C25/106
Filed: 1964-03-17
Abstract: To allow fibre optic face plates to withstand higher bake-out temperatures, each glass fibre is clad with a tightly adherent transparent layer of a refractory oxide consisting of silica, alumina or zirconia or a mixture of two of three thereof.  The fibres may be wet with a silica sol or high viscosity liquid concentrate formed by heat-treating solutions of organic salts of alumina or zirconia, then dried and heated at high temperature, e.g. between 1000 DEG  and 1600 DEG  F. in a non-reducing atmosphere.  The refractory cladding may be applied directly to the glass core or used as an overlay on a low refractive index glass cladding already surrounding the core.
Patent GB-1320052-A (GB)
Title: Method of curing foam inflated tyres
IPC: B29D30/04
Filed: 1971-04-26
Abstract: 1320052 Moulding tyres GOODYEAR TIRE & RUBBER CO 26 April 1971 [1 June 1970] 11325/71 Heading B5A [Also in Division B7] A tyre is inflated with elastomeric foamable material by placing the unfoamed material in the cavity of a previously moulded tyre, mounting the tyre on a wheel rim and placing the assembly in a steam atmosphere whereby the material is expanded and cured within the cavity. The steam may be saturated and applied to the tyre in separate stages, between which stages the material is allowed to foam at atmospheric pressure.
Patent GB-1466812-A (GB)
Title: Housing of a travelling hearth
IPC: B01J8/08
Filed: 1975-03-19
Abstract: 1466812 A housing of a travelling hearth POLYSIUS AG 19 March 1975 [17 April 1974] 11372/75 Heading F4B A travelling hearth used for heating and cooling material is provided with a housing which is constructed so as to allow for expansion during use. As shown in side view Fig. 2, the travelling hearth has upper and lower reaches 6 and 7. The housing comprises vertical columns 8 fixed to a foundation at 13. Longitudinal beams 9 are fixedly connected to the vertical columns 8 at 14, while longitudinal beams 10 (which in use become hotter than the beams 9) and housing sheets 12 are only fixedly attached to some of the columns 8 at 15, but are slidably connected to the others at 16 thereby allowing for expansion. Fig. 3 shows details of a sliding connection 16 between a vertical column 8 and two longitudinal beams 10. The beams 10 are attached to the sheets 12 and support plates 18 by welding. Bolts 19 pass through holes 20 which provide sufficient play to enable the beams 10 to expand in the direction of the arrows 17. Free sliding movement is ensured by spacer tubes 21. An expansion gap 23 is sealed by a sheet metal compensator 24. A refractory lining 25 has an expansion gap 26.
Patent GB-352503-A (GB)
Title: Improvements in apparatus and process for removing the grease from and cleaning garments and textiles
IPC: D06F21/02
Filed: 1930-04-10
Abstract: A dry-cleaning apparatus, for use with a non-combustible solvent, comprises a vacuum chamber rotatable at low or high speed and connected through a 3-way cock to the reservoir of a condenser, and to a pump, by which solvent is drawn into the chamber and after use is evacuated therefrom into the still.  A perforated drum 1, is mounted within a casing 12, on a shaft 3 which is rotated either by a pulley wheel 4 and reduction gearing 6, or by a pulley 7 engaged by a clutch 9.  The chamber 1 may be divided into compartments by perforated plates mounted on the shaft 3.  In operation, solvent such as trichlorethylene, passes from the reservoir 22 through a pipe 19 and 3-way cock 17 to the slowly rotating extractor 1 containing the clothes to be treated. Extraction is effected without the aid of heat.  When extraction is complete, the pump 27 <PICT:0352503/III/1> forces the used solvent from the extractor 1 and through a pipe 18 to a still 40, heated by a burner 21.  The solvent vapours are condensed in tubes 23 and pass downwards to the reservoir 22.  The clothes in the extractor may be submitted to further extraction if necessary, and after removal of the solvent, the extractor is rotated at high speed.  Finally the chamber is heated by the burners 14 and the chamber is rotated at low speed.  In the case of thick fabrics, warm air at 35-40 DEG  C. may be injected at the drying stage.  The process may be applied to the degreasing of animal hair such as wool, hides or feathers.
Patent GB-528507-A (GB)
Title: Improvements in or relating to superchargers for internal-combustion engines
IPC: F01D25/14
Filed: 1939-01-21
Abstract: 528,507. Swash-plate pumps. BRISTOL AEROPLANE CO., Ltd., BUTLER, L. F. G., BRIGGS, E., and BOWNES, E. Jan. 21, 1939, No. 11453/40. Divided out of 525,331. [Class 102 (i)] [Also in Group XXXIV] A centrifugal pump supercharger 16 is carried on the shaft 12 of a turbine driven by the exhaust gases of the I.C. engine. The shaft is mounted in a ball race adjacent the turbine disc and a ball race 13. The former is lubricated by oil passing down a central bore 86 and the latter by oil delivered into a cavity 145. The oil is delivered in measured quantities by pumps comprising pistons 121, 122 and cylinders 119, 120 which receive oil by way of a channel 117 and ports 123. Cvlinder 119 delivers oil through port 126 to channel 128 and thence to the bore 86 ; cylinder 120 delivers oil through port 134 to a central bore in shaft 137 and a port 140 to an annular space 139 and the oil after passing a plain bearing 143 enters the cavity 145 through a port 144. The pistons 121, 122 are reciprocated by a swash plate or edge cam 153 on a sleeve 152 rotated at a low speed through a compound epicyclic gear train 150, 149 from the shaft 137. The shaft 137 carries a worm wheel 109 driven by a worm 108 on the turbine shaft 12. The end of the shaft 137 remote from the pumps is enlarged at 143 to form a plain bearing and has a non- circular recess 142 for the drive of a tachometer. Specification 528,506, [Group XXVI], is referred to.