baber/WOPTO huggingface dataset:
Patent GB-874958-A (GB)
Title: Improvements relating to dielectric heating apparatus
IPC: H05B6/46
Filed: 1957-02-25
Abstract: 874,958. Valve oscillator circuits. BAZIN, R. E. Feb. 11, 1958 [Feb. 25, 1957], No. 6307/57. Class 40(6) A di-electric heating oscillator comprises a cavity resonator having inner and outer members and an oscillator valve mounted in or on the inner member with its anode connected to the outer member or to the high potential end of the inner member and a grid or filament lead arranged in close proximity to the inner member so that it takes up the voltage gradient of said inner member. In Fig. 1 the oscillator comprises a cavity resonator having inner and outer members 2, 1 and an oscillator valve 5 mounted on a bracket on the inner member with its anode connected to the outer member at 12, its grid connected to the inner member at 7 and its cathode connected to the inner member at 10. Power may be taken from a variable capacitor coupling 14, from a loop associated with leads 14b or from a direct connection 14c. The grid and filament leads 8, 9 are taken through the member 2 and along the inner wall of member 1. Cooling may be effected by a fan 16 or by using the chimney effect of the resonator. The power output may alternatively be taken from a coaxial line the inner conductor of which is formed by an extension of member 2 taken through the upper wall. (Fig. 3, not shown). The plates of the heater may be formed by upper wall 4 and a further plate connected to the extension of member 2 (Fig. 4, not shown).
Patent GB-162862-A (GB)
Title: Improvements in or relating to pumps
IPC: F04B33/00
Filed: 1920-03-02
Abstract: 162,862. Klauck, M. A. March 2, 1920. Piston pumps; actuating pumps by foot-power. -Pumps for use particularly in inflating pneumatic tyres and in which the cylinder is reciprocated over the fixed piston by foot-operated toggle-levers, are provided with longitudinal ribs j, Figs. 2 and 4, on the cylinder which slides within guides formed by lugs k, m, the lugs k, and m being attached to the horizontal guides c and the pump-frame uprights d, respectively. The foot-levers n are mounted upon shafts q secured to the cylinder cover and carrying the rollers a which coact with the horizontal guides. A roller e attached to the bottom of the cylinder cover bears upon a guide f on the pump-frame.
Patent GB-370589-A (GB)
Title: Improvements in or relating to gas cookers
IPC: F24C3/08
Filed: 1931-03-02
Abstract: 370,589. Gas cookers. WADE, H., 111, Hatton Garden, London.-(Akt.-Ges. H. Vogt-Gut. ; Arbon, Switzerland.) March 2, 1931, No. 6460. [Classes 75 (i) and 126.] Flame deflectors; baffles.-A gas cooker has an annular gap 12 which forms a vertical inlet for secondary air between a ring of horizontally directed gas jets 3 and a central boss 7 which directs the burning gases upwardly into the combustion chamber 8 formed by the boss and an annular member 9. The annular member 9 has radial ribs 11 on which a cooling vessel may stand if parts of the top plate 10 are removed. The boss 7 and member 9 are made of chamotte or other earthenware. In a modification, the central boss is hollow, and the combustion chamber is completed by a bottomless dish-shaped member, the upper rim of which may be square or circular, and the lower rim circular, and which has radial ribs, extending from the lower edge to a level above the top of the cooker, to support a cooking vessel.
Patent GB-546076-A (GB)
Title: Improvements in or relating to the production of benzene sulphonhydroxy amide derivatives
IPC: C07C311/37
Filed: 1940-04-11
Abstract: 546,076. Sulphonamido compounds. ABBEY, A. (Sharp & Dohme, Inc.). April 11, 1940, No. 6599. [Class 2 (iii)] p-Acylaminobenzene-sulphonhydroxyamides, in which the acyl group is the residue of an aliphatic carboxylic acid of at least four carbon atoms, are prepared by reacting the corresponding sulphonyl halide with hydroxylamine, preferably in the form of a salt. The aliphatic acid may be saturated or unsaturated and substituted or unsubstituted, e.g. butyric, isobutyric, valeric, isovaleric, α-methylbutyric, caproic, α-chlorcaproic, heptoic, caprylic, capric, palmitic, oleic, stearic, ricinoleic, myristic and behenic acids. The products, particularly those containing 5 to 7 carbon atoms in the acyl group, are useful therapeutically. Examples are given of the preparation of p-nheptoylamino,-n-valerylamino-, -nbutyrylamino -n-caproylamino-, -γ-methylvalerylamino- and - isovalerylaminobenzenesulphonhydroxyamides by interaction of the corresponding sulphonyl chloride with hydroxylamine hydrochloride, usually in pyridine. Specification 506,431 is referred to.
Patent GB-1445274-A (GB)
Title: Frequency division multiplex system using comb filters
IPC: H04H20/89
Filed: 1974-02-14
Abstract: 1445274 Multiplex systems Y HIRATA 14 Feb 1974 [15 Feb 1973 (2) 24 April 1973 (2)] 6691/74 Heading H4R In a multiplex system each input channel includes a comb filter 12(1), 12(2), the stop band, Fig. 2A, of which covers the pass bands, Fig. 2B, of the comb filters in the other channels After combination and transmission the channels are separated by similar comb filters to those used at the transmitting end. The arrangement is suggested for use in multiplexing pairs of channels of a quadraphonic sound system on to the left and right channels of a stereophonic record. The comb filters can be conventional digital or analogue non-recursive or recursive transversal filters with complementary Sin<SP>n</SP>(#fT) and Cos<SP>n</SP>(#fT) characteristics, where n is the number of stages, T the sampling period and f the input signal frequency, Fig. 3, 5, and 6 (not shown), or an n stage feed forward circuit each stage of which comprises an arithmetic unit which adds appropriate proportions of undelayed signal and signal delayed by a charge coupled delay device, Fig. 8 (not shown).
Patent GB-622817-A (GB)
Title: Improvements in or relating to radio antennae
IPC: H01Q1/12
Filed: 1945-03-16
Abstract: 622,817. Aerials. THORNTON, A. A., (Philco Radio & Television Corporation). March 16, 1945, No. 6714. [Class 40 (vii)] An aerial comprises a conductor, e.g. copper wire, enclosed in insulating material, the whole being arranged to form a flexible rod, and having a laterally - extending terminal which also forms a support for the rod. In one form, Figs. 1, 2, a tapering rod is formed of flexible wooden strips 4, 5 of semi-circular cross-section placed together with a complemental groove accommodating a wire 2. The parts are held together at the upper end by a retaining ball 6 of insulating material, e.g. plastic or wood, and at the bottom by a retaining cap 7. The rod may be covered with fabric 8 or other suitable material. A terminal 3 comprises a bolt 11, Fig. 5, extending into the rod and terminating in a sleeve 12 through which the wire 2 extends. For securing the aerial to a surface 13, e.g. a vehicle body, the bolt 11 is passed through an insulated spacing member 14 and through a hole in the surface 13, a washer 15 of insulating material being arranged on the inside and the whole being clamped by a nut. In another form, Figs. 3, 4 (not shown), the rod is moulded of insulating material, e.g. plastic, within which the wire 10 is completely embedded.
Patent GB-384648-A (GB)
Title: Improvements in methods of and materials for preserving rubber
IPC: C08K5/18
Filed: 1931-03-04
Abstract: Deterioration of rubber, transformer oils, soaps, and similar organic materials by atmospheric oxygen, sunlight, or heat is prevented by incorporating therein phenyl-2-naphthylamines disubstituted in the phenyl nucleus, such as xylyl- or cumidyl-2-naphthylamines.ALSO:Deterioration of transformer oils or soaps by atmospheric oxygen, sunlight, or heat is prevented by incorporating therein phenyl-2-naphthylamines disubstituted in the phenyl nucleus, e.g. xylyl- or diamidyl-2-naphthylamines.ALSO:Deterioration of rubber, transformer oils, soaps, and similar organic materials by atmospheric oxygen, sunlight or heat is prevented by incorporating therein phenyl-2-naphthylamines disubstituted in the phenyl nucleus.  Tables are given showing the results of ageing tests on rubber containing 1 per cent of xylyl- or cumidyl-2-naphthylamine.
Patent GB-476659-A (GB)
Title: Improvements in cushions
IPC: A47C27/15
Filed: 1936-03-06
Abstract: 476,659. Indiarubber springs. UNITED STATES RUBBER PRODUCTS, Inc. March 6, 1936, No. 6802. Void. Convention date, March 7, 1935. [Class 108 (iii)] [Also in Groups XIV and V] A cushion is built up of tubular cylindrical or polygonal elements 30 of rubber assembled in contact with their axes vertical and preferably cemented together. The upper ends may be open or closed and the side walls ribbed or perforated. The assembly is preferably bounded by slabs of sponge rubber and the base support 26 may be perforated to permit restricted flow of air to and from the interior. The elements at the front of the cushion may be notched 41 or undercut to provide an overhung or soft edge.
Patent GB-105996-A (GB)
Title: Improvements in Carbon Holders for Electric Arc Lamps.
Inventor: WHITE JAMES
IPC: H05B31/18
Filed: 1916-05-13
Abstract: 105,996. White, J. May 13, 1916. Arc lamps.-An adapter for holding short lengths of carbon in a search-light or projector comprises a stem A designed for insertion in the ordinary holder and provided with levers D, E which are pivoted in a recess in the stem and carry jaws B for gripping the carbon C when this is coaxial with the stem. The arms are pressed together by a sliding or screw sleeve F on the stem. When the stem is in position, the sleeve abuts against the holder to prevent loosening. In a modification, the levers are pivoted centrally at a common point and the sleeve forces their inner ends outwards. The jaws may be pivoted to the arms, so as to adjust themselves for different diameters of carbon; or they may be made with hollow semi-cylindrical backs seated in curved recesses in the levers and held by pins and slots. According to the Provisional Specification, the levers may be replaced by leaf springs similarly closed by a sliding ring.
Patent GB-1485981-A (GB)
Title: Automatic door operating system
IPC: E05F13/04
Filed: 1975-01-03
Abstract: 1485981 Operating a plurality of doors COAL INDUSTRY (PATENTS) Ltd 3 Jan 1975 [15 Feb 1974] 6990/74 Heading E2M A plurality of doors designed to be bperated in succession (e.g. air-tight doors in mines) is provided with separate operating means and open and close switches for each door and interlock means involving polarized relays to isolate the operating mechanisms of the other doors when one door is being opened; indicating lights (or other visual and aural means) signal the state of the doors and further switches prevent closing of a door when an object is adjacent. Fig 1 shows one of the doors and each door comprises a fluid pressure operator 6 acting on two door panels 1; each side of the door being provided with a control 15 having an opening switch 16 a closing switch 17 and a red and a green indicating light. Each door panel 1 also has a door 12 which is opened by an actuating cylinder (not shown) to equalise pressure on both sides of the main door prior to the main door opening. Tread plates 8, 9 act to stop and reverse any door closing action if contacted. When a switch 16 of a particular .door is actuated a relay is operated to isolate the operating mechanisms of the other doors, to turn the indicating lights of all the doors from green to red, and to open the doors 12 in the door. When doors 12 are open power is supplied to the main door operating mechanism and when the main door is fully open the indicating lights on that door turn from red to green (remaining on red for the other doors). To close the door a switch 17 is actuated and the operating means acts in the opposite direction, the door lights turning from green to red. When door panels 1 are closed, the lights of this door return to green and doors 12 are closed. When this has taken place the lights on the other doors return to green.
Patent GB-1005946-A (GB)
Title: Improvements in rotary valves or conveying devices
Inventor: JAY COLIN EDWARD
IPC: B65G53/46
Filed: 1963-02-21
Abstract: 1,005,946. Pneumatic conveyers. DAVEY, PAXMAN & CO. Ltd. Feb. 14, 1964 [Feb. 21, 1963], No. 7017/63. Heading B8A. A rotary feeding valve for granular &c. material has resiliently supported vanes 10, Fig. 1, of T-section mounted on the radial arms 9 and bedded partially into and over resilient members 11. The arrangement takes up wear in the housing and inhibits the passage of material into the regions where the vanes 10 move radially within the arms 9.
Patent GB-286630-A (GB)
Title: Improvements in and relating to workrests for use with crank grinding machines
IPC: B24B5/42
Filed: 1927-04-06
Abstract: 286,630. Landis Tool Co., (Assignees of Steiner, A. P., Stoner, P., and Harrison, C. P.). Aug. 2, 1926, [Convention date]. Divided on 275,164. Rests.-A work rest for use in a crank shaft grinding machine as described in Specification 286,629 comprises two supports 247, 250 carried by a cross slide 239 which can be withdrawn, for axial movement of the shaft 46, and, when advanced, is positioned by an adjustable stop 241 and secured by a bolt 243 to the support 237. Both the supports can be adjusted by screws 248, 251, the latter engaging a pivoted nut 253 so that it can be swung up to allow the support 250 to fall out of the way for measuring the work.
Patent GB-417927-A (GB)
Title: Improvements relating to supporting arms for gramophone pick-ups or like devices
IPC: G11B3/14
Filed: 1933-03-08
Abstract: 417,927. Gramophones &c. SCHULER, H. A. H., 1, Gartenstrasse, St. Georgen, Schwarzwald, Germany. March 8, 1933, No. 7028. [Class 40 (ii).] A supporting arm 4 on which a gramophone pick-up or recording device 1 is pivoted about an horizontal axis 3 either directly or through a frame 2, is provided with a weighted lever 5 pivoted about the same axis 3, which lever exerts an upward force on the device 1 or upon a projection 6 on the frame, so as to relieve the stylus pressure. The counter-balancing force may be varied by arranging a weight 7 slidably on the longer arm of the lever, which is preferably graduated. A projection 8 is provided on the arm 4, to limit the fall of the lever 5 when the pick-up is swung upwardly.
Patent GB-161419-A (GB)
Title: An improved method of preparing for transit insoluble materials such as fullers' earth
IPC: B01J20/12
Filed: 1920-03-08
Abstract: Fullers' earth, ground argillaceous rocks or marls, or other finely divided material or coarsely powdered or granular materials liable to produce dust are mixed with a solution of sodium silicate or other binding-agent soluble in water and dried to form lumps that are dustless in transport.  The powder &c. is reformed by dissolving out the binder.
Patent GB-1400386-A (GB)
Title: Bodies of concrete or the like and to structures incorporating  the same
IPC: E02D27/18
Filed: 1971-03-17
Abstract: 1400386 Forming subaqueous structures COSTAIN CIVIL ENG Ltd 16 June 1972 [17 March 1971] 7139/71 Heading E1H A hollow buoyant body of inverted frustopyramid shape made of concrete or the like, e.g. weighing 1000 tons, has sea rocks 9 and 10 for admitting water and exhausting air to sink the body, the shape of the body being such that it can be towed and can be interengaged with other bodies, when sunk, to form a stable underwater mound, e.g. for a tanker terminal foundation. The body may be formed by plates of concrete with perforated internal strengthening walls 7. The sea rocks 9 and 10 may be controlled from the upper surface of the body to provide controlled sinking. A rudder may be attached to or formed integrally with the body.
Patent GB-313199-A (GB)
Title: Improvements in strip metal bending machines
IPC: B21D5/06
Filed: 1928-03-08
Abstract: 313,199. Smith, Ltd., D., and Smith, D. March 8, 1928. Rings.-In a machine for making hand steering wheels for motor vehicles, tubular metal coils &c., strip metal is coiled by an oscillating quadrant provided with a gripper which pulls the strip through the sectioning tools in its operating stroke but releases it on the return stroke. The strip is drawn through three pairs of sectioning rolls 1, 2, 3 and over a mandrel 4, which may merge from circular to oval form, by a quadrant former 5 to which the work is secured by a clamp 8 slidable in slots 11 in arms 10 thereon. The quadrant is oscillated by gearing 23, 22, 20, 14, adjustable connecting rod 13 and toggle links 12, 15, which close the clamp on the work during the operative stroke and release it on the return stroke. The pivot pin 16 of the link 12 is eccentrically mounted in the arms 10 and is held in adjusted positions by a pin passing through one of a number of holes in a ring secured to the pin 16 and through a hole in one of the arms 10. The end of the mandrel projects just beyond the vertical plane containing the axis of the quadrant so as to stretch the outer side of the bend and thus prevent buckling of the tube &c. The rolls of each pair are geared together and the lower rolls of the pairs 1, 3 are driven during the operative stroke by a chain 24 through a pawl 26 on a heavy bar 25 connected by an adjustable link 27 to an arm 28 mounted on the quadrant shaft 6. The lower roll of the pair 2 is connected by gears 29, 30 to the lower rolls of the other pairs. The quadrant may be curved or of square configuration, and its shaft is carried in an adjustable block to suit quadrants of various sizes. The end of the mandrel may be supported on a bracket 33, Fig. 9, and the quadrant provided with a grooved member 31 to guide the tube &c. thereon. The top roll of the pair 2 may be dispensed with, the lower roll being shaped to co-operate with the mandrel shaped at this point as shown in Fig. 11.
Patent GB-489993-A (GB)
Title: Improvements relating to the manufacture of brushes
IPC: A46D3/04
Filed: 1938-03-08
Abstract: 489,993. Making brushes. BELL, M. V. March 8, 1938, No. 7194. [Class 19] Bristles B, Fig. 1, are gripped in position by driving a tapered handle or peg A through the centre until they are firmly held between the larger end of the handle and the inner surface of a ferrule C. A device for supporting the bristles comprises a table D with a central aperture d of greater diameter than the handle A and provided with fixing-lugs d<1>, Fig. 2. A number of plates E together forming a disc are each mounted on a stud F. The inner end of each plate E slides against a side e<1> of an adjacent plate. Each pair of plates is connected by a spring f. An adjusting screw e<2> bears against one corner of one of the plates and sets the initial size of the aperture E<1>. As the handle A is driven inwards, the plates pivot against the tension of the springs, enlarging the aperture E<1>, the bristles B always being supported by the plate E.
Patent GB-329068-A (GB)
Title: Improvements in moving picture screens
IPC: G03B21/56
Filed: 1929-03-06
Abstract: 329,068. Marks, Sir G. C., (Dalite Screen & Scenic Co.). March 6, 1929. Draw. ings to Specification. Projection screens used with sound-reproducing means behind them are formed only of a single sheet of fabric having equally-spaced perforations or apertures therein for transmission of the sound. The screens may consist of fine-mesh cotton fabric having pieces punched from it to form the perforations. The fabric may be coated with aluminium or zinc paint &c.
Patent GB-845651-A (GB)
Title: Improvements in or relating to rendering fibrous materials water-repellent
Inventor: SOMERVILLE JAMES CARGILL
IPC: D06M13/188
Filed: 1958-03-07
Abstract: The water-repellency of fibrous materials, e.g. natural or synthetic fibres in the form of filaments, yarns or woven, knitted or felted fabrics or paper, is improved by treating them with a methylpolysiloxane fluid in the presence of an organo-tin oxide and a metal octoate and thereafter heating at e.g. up to 150 DEG C. to cure the methylpolysiloxane.  The treating medium may be in the form of an aqueous emulsion, or of a solution in an organic solvent, e.g. toluene, acetone, white spirit or isopropanol.  The methylpolysiloxane fluid may have a ratio of methyl groups to silicon atoms of about 1,02:1 to 1,2:1 and may comprise 0,5% to 10%, preferably 1% to 5% of the medium, or may contain another organopolysiloxane which may be a dimethylpolysiloxane fluid in amount of about 50% to 200% by weight of the methylpolysiloxane. The preferred organo-tin oxides are dibutyl-tin oxide and di-n-octyl-tin oxide, but dicetyl-tin oxide, tri-n-octyl-tin oxide, tri-butyl-tin oxide, diphenyl-tin oxide and tri-phenyl-tin oxide are also referred to.  They may be used in amounts of 0,5 to 10%, preferably 2 to 6% of the methylpolysiloxane.  The metal octoate may be an octoate of zinc, tin (stannous) or lead, is preferably a 2-ethyl-hexoate, and may be used in amount of 2 to 40%, preferably 8 to 25% of the methylpoeysiloxane.  Paper treated by the process also has excellent anti-stick properties.  Compositions may be prepared by dissolving the metal octoate in a solvent, dissolving the organo-tin oxide in this solution, and adding to a solution of the methylpolysiloxane fluid; by dissolving dibutyl-tin oxide in ethyl acetate, distilling off the excess solvent, adding to a solution of zinc 2-ethylhexoate in toluene and adding this to a solution of the methylpolysiloxane; or by emulsifying the metal octoateorgano-tin oxide solution and the polysiloxane separately in water, using as emulsifying agents for the solution the sodium salt of a polyvinyl acetate/maleate polymer, and for the polysiloxane oleic acid and sulphonated methyl oleate, and then mixing the emulsions.
Patent GB-575916-A (GB)
Title: Improvements in or relating to pumps for wells, boreholes and the like
IPC: F04B47/00
Filed: 1944-04-21
Abstract: 575,916. Bore-hole pumps. STOW, G. R. S. April 21, 1944, No. 7413. [Class 102 (i)] A double acting bore-hole pump comprises co-axial barrel members 1, 2, Fig. 1, held by ribs 3, 6, Fig. 3, to give semi-annular spaces 4, 5, a solid piston 10 reciprocated between upper and lower valve assemblies mounted in conical seatings 7, 12 and a strainer 27 which together with piston and valve assemblies can be fitted to or taken from the pump barrel when the latter is in position at the well bottom. In action the downward stroke of the piston displaces liquid past opening 19 in the lower valve assembly and valves 20 and through associated ports 21, 22 into the space 4 and thence to the rising main. Simultaneously liquid from the strainer passes valves 26, ports 28, 29, Fig. 5, and space 5 to occupy the space behind the piston which liquid on the upward stroke passes valve 9 in the upper assembly to the rising main. At 'the same time liquid passes the valve 26a and opening 17, 19 to the space below the piston.
Patent GB-841003-A (GB)
Title: Improvements in or relating to 6-methyl steroid compounds
Inventor: KIRK DAVID NEVILLE
IPC: C07J5/00
Filed: 1958-03-07
Abstract: The invention comprises 6 : 16a -dimethylpregnenolone and 6a  : 16a -dimethylprogesterone, the preparation of the former by reacting 3b - hydroxy - 6 - methylpregna - 5 : 16 - dien-20-one with a methyl Grignard reagent and, if required, the subsequent conversion thereof to the latter by oxidizing to form 6 : 16a -dimethylpregna - 5 - ene - 3 : 20 - dione and isomerizing this.  In the first of these processes the 3b -hydroxy group is conveniently protected by acylation or by formation of the tetrahydropyranyl ether and subsequently regenerated by hydrolysis or treatment with mineral acid respectively.  The oxidation may be effected with chromic acid in acetone and the isomerization with oxalic acid, or these two stages may be carried out in a single operation using an Oppenauer oxidant such as aluminium-tert-butoxide and cyclohexanone or acetone in toluene solution.  The 6 : 16a -dimethylpregnenolone may be obtained pure by isolation via the semicarbazone thereof.  An example is given.