baber/WOPTO huggingface dataset:
Patent GB-211533-A (GB)
Title: Improvements in or relating to air heating apparatus
IPC: F24H3/00
Filed: 1922-10-19
Abstract: 211,533. Pease, E.L. Oct. 19, 1922. Air-heating stoves.-Sets of spaced-apart metal plates are arranged on either side of or around a vertical flue so that their free inner edges are heated and air is caused to flow inward and upward between the plates and into the flue. Fig. 1 shows downwardly bent plates in two sets 1, 2 on either side of an electric heater 5. Fig. 4 shows vertically arranged plates. An electric lamp 14 may be fitted below. In a modification, a lamp. or burner supplies the central heating means. The plates instead of being bent at a fixed angle, as shown in Fig. 1, may have hinged parts to vary the angle. Specification 183,162 is referred to.
Patent GB-878996-A (GB)
Title: Manually operated drilling or like braces
IPC: B23B51/02
Filed: 1959-08-21
Abstract: 878,996. Hand drills. LUSSKIN, H., LUSSKIN, L. S., and LUSSKIN, R. Aug. 21, 1959 [Feb. 3, 1959], No. 28590/59. Class 83 (3). A manually-operated drilling-machine comprises an arm 15 rotatably supporting a shaft 20 and pivotally-connected to a second arm 18 by a spring 12. Pins 35 on arm 18 run in a helical groove 36 in the shaft to rotate the shaft and a chuck 29 thereon when arms 15, 18 are moved manually towards and from each other. In a modification the shaft 20 has two helical grooves of opposite hand, either of which can be selectively engaged by the pin 35 to rotate the chuck in either direction. The shaft 20 may be hollow to receive a pin 45 for insertion into a bore &c. during surgical operations.
Patent GB-182387-A (GB)
Title: Improvements relating to lubricating apparatus
IPC: F16N3/12
Filed: 1921-10-29
Abstract: 182,387. Milner, C. E., and Benton & Stone, Ltd. Oct. 29, 1921. Piston apparatus for discharging receptacles.- In lubricators of the kind comprising a cylinder a and a screw-operated piston i, a supplementary screw-operated piston c in a cylinder b of smaller diameter than the main cylinder is used when abnormally high delivery pressure is required. In the form shown, the cylinder b is transverse to the cylinder a and communicates therewith by a passage g and port f controlled by a non-return valve.
Patent GB-178144-A (GB)
Title: Improved process for exciting alternators
IPC: H02P9/10
Filed: 1920-10-11
Abstract: 178,144. Blondel, A. E. Oct. 11, 1920. Exciting; regulation of exciting-machines.- Hunting currents between alternators feeding bus-bars in parallel or oscillations due to shortcircuits are limited by series transformers in the alternator mains, the secondary coils of which supply the commutator machines that excite the alternators, the connections being such that an increase in the primary series current causes a counter-compounding action in the commutator machine with a corresponding diminution in the alternator field current. The alternator A, Fig. 1, works in parallel with others on the bus-bars B1, B2 through mains f<1>, f<2>, and its magnet M is excited by a rotary converter E1 fed on the alternating-current side by series and shunt transformers Ds, Dp. The armature E1 is rigid on the shaft of the alternator and is so placed that the transmitted magnetic effect of the currents in the main f<1> is in opposition to the normal field of the exciter. The arrangements are shown for one phase of the alternator, but may be applied to each phase of polyphase machines. The transformer Dp may be common to several alternators, the exciters being connected to the bus-bars B5, B6, and it may supply a winding on the exciter separate from that which carries the series current from the transformer Ds. In the form shown in Fig. 3, the exciter E1 takes its compounding-current at Ds, as shown in Fig. 1, and is excited partly in shunt at J1 and partly at J2 from an independently-driven converter E2, fed by a transformer Dp, or from a battery N. This arrangement gives more stable running of the exciter. By means of a series transformer D and coils m1, m2, a circuit-breaker I may be arranged to de-energize the coil J2 in case of overload on the alternator. The machine El may. have an additional coil J1, Fig. 4, carrying varying currents derived by a transformer De from oscillations in the alternator field current, thus giving a counter-compounding in the exciter for variations in the alternator speed. This device may also be applied to the stabilizing exciter E2, Fig. 3. Automatic regulators T1, T2 of the Thury or Tirrill types may be employed in the system; to prevent such a regulator from preponderating over the counter-compounding action in the event of a short-circuit, the regulator may be arranged to insert a large supplementary resistance R, Fig. 6, and so reduce the excitation suddenly to a minimum after it has increased it to a maximum.
Patent GB-262749-A (GB)
Title: Improvements in package and method of producing the same
IPC: B65D75/28
Filed: 1926-11-15
Abstract: 262,749. Townsend, H. E. Dec. 9, 1925, [Convention date]. Packing confectionery and like articles.- Packages of confectionery are made by applying a sheet 4, Fig. 5, of waxed paper to the articles 2, preferably so that it encircles the articles. rather more than two complete turns. The ends are closed by tucks 6, 8, 10, 12, and an outer sheet 18 Fig. 8 of foil is wrapped one turn and a quarter round the package and the ends similarly closed, the folds at the end of the foil wrapping being independent of the folds at the end of the waxed paper wrapping. Heat is then applied to the external surface of the package to melt the wax of the inner wrapper, and adhesion is assured by rolling and pressing. The heat may be applied only to the ends and to the longitudinal seam. In a modification, Fig. 10, a rectangular article such a box 19 is enclosed in a waxed wrapper 20 and the ends folded in. A second wrapper 22 is then applied and the whole secured by heat and pressure.
Patent GB-334085-A (GB)
Title: Bracket for supporting electric motors
IPC: H02K5/26
Filed: 1929-09-24
Abstract: 334,085. Wood, L. D. Sept. 24, 1929. Driving - arrangements. - Relates to brackets for supporting electric motors upon machines, of the kind mounted for vertical adjustment upon the machine frame 1 and having a pair of slotted carriers 13 transversely disposed and adjustable thereon and bolts movable in the slots in the carriers to support the motor base 5. According to the present invention, each bolt 18 is secured in adjusted position by a nut 20 screwed against the carrier and the motor base is secured between two nuts 22, 24, spring washers 25 being interposed between the upper nut 24 and the motor base and between the lower nut 22 and the nut 20.
Patent GB-483215-A (GB)
Title: Improvements in rolled metal mine arches and like pit supports
IPC: E21D11/20
Filed: 1937-10-23
Abstract: 483,215. Structural bar sections. RICHARDS, F. Oct. 23, 1937, No. 28957. [Class 20 (ii)] An I-section bar in which the flanges are splayed outwardly and increase or decrease in thickness uniformly from the roots 3 towards the extremities 4, as described in Specification 429,325, is of less width across the flanges than the overall depth of the section. The section bar is of particular use as a, prop or strut or as a mine-roof arch-support.
Patent GB-675494-A (GB)
Title: Improvements in or relating to cartridges for shotguns
IPC: F42B7/04
Filed: 1949-11-11
Abstract: 675,494. Shot-gun cartridges. VECCHIOTTI, A. Nov. 11, 1949. [May 20, 1949; June 30, 1949] Nos. 28981/49 and 28982/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 12, 1950] Class 9 (i). A cartridge case for shot-guns is provided with a register member for controlling the distribution of the shot, the register member being a rod with an enlarged base. The case has a pleated closure which engages the top of the rod to centre it in the case. The case 1 is closed over the shot by a series of folds forming bow-shaped grooves 8 wider at the bottom than the top and spirally arranged around the axis of the cartridge. The folds are pressed inwards to form a concave surface, the sealing being completed by crimping the case to form a peripheral edge and a stepped centre edge, Fig. 9. The central aperture between the vertices of the folds is closed by wax, a cork pellet or a disc of paper or cellophane. In a modified form of the cartridge the closure may be flat or convex upwards. The cartridge may again be crimped to form a peripheral edge 10 and a stepped inner portion 11. A small column 12, Fig. 14, is inserted in the cartridge, the shot being grouped in an annular mass around the column. To the base of the column is secured a cardboard disc 13 and an undershot wad 15. The column may be of cardboard, hard rubber, paper-coated cork, paper-wool, wood or combinations of these materials with metal or rubber, and the column may be secured to the disc and wad by a screw, wires or nails. The column may be cylindrical, or octagonal and may have a grooved surface. The free end may be of reduced section to form a plug for the central aperture between the folds and to centre the column in the cartridge. A metal ring may surround the lower part of the column and be integral with a metal disc on which an annular cardboard disc 13 is supported to centre the column. The Specification as open to inspection under Sect. 91, also describes a cartridge case closed by forming triangular folds and bending these folds inwards. Crimped edges may be formed as before and the small central opening between the folds may be sealed by a disc of paper or cellophane or a cork pellet. This subject-matter does not appear in the Specification as accepted.
Patent GB-1108474-A (GB)
Title: Devitrified glass-ceramics
Inventor: MCMILLAN PETER WILLIAM
IPC: C03C10/00
Filed: 1964-01-24
Abstract: In a strong devitrified glass-ceramic article, at least 80% by weight consists of the following, the figures being percentages by weight: ZnO, 32-56; Al2O3, 3-25; SiO2, 32-54; and a nucleation catalyst; the balance, if any, consists of other compatible consitituents.  The article contains substantially no Li2O or TiO2.  In addition, the article may contain, up to a total of 20%:Na2O and/or K2O, up to 6 in total; MgO, CaO, SrO, and/or BaO, up to 10 in total, PbO, up to 10; B2O3, up to 10. The nucleation catalyst may be one or more of: P2O5, up to 6.0; MoO3, up to 5.0; ZrO2, up to 7.5; preferably the catalyst is either P2O5 above, or MoO3 with either P2O5 or ZrO2. P2O5 may be added as metallic phosphate, e.g. zinc orthophosphate Zn3(PO4)2.  The articles may be formed by melting a glass batch, shaping the glass, and heating to 1000-1250 DEG  C. After shaping and before heat-treatment, the articles may optionally be annealed at 650-800 DEG  C. and cooled to room temperature.  In the heat-treatment the temperature of articles is raised by not more than 10 DEG  C. per minute to 500-1250 DEG  C. and held for at least 15 minutes.  If the temperature is less than 1000 DEG  C., the temperature is again raised at not more than 10 DEG  C. per minute to a second holding stage at 1000-1250 DEG  C.  The cooling rate from the final temperature may be up to 10 DEG  C./min.  The major crystalline phase is zinc orthosilicate 2ZnO.SiO2.  Other crystalline phases are zinc spinel ZnO.Al2O3, "galinite"; quartz, SiO2; and mullite, 3Al2O3,2SiO2.  Coefficient of thermal expansion is may be 28.0 to 115.4 x 10-7/ DEG C.  Some samples have dilatometric softening point > 900 DEG  C.
Patent GB-1268378-A (GB)
Title: Improvements relating to brass wind instruments
Inventor: DAVIE PETER
IPC: G10D9/04
Filed: 1968-06-18
Abstract: 1,268,378. Valves. BOOSEY & HAWKES Ltd. 18 Sept., 1969 [18 June, 1968], No. 29060/68. Heading F2V. [Also in Division G5] A piston valve 1 for a brass wind instrument is provided with a radially extending plastics key 7 held in an axially extending groove formed in the cylindrical surface of the piston. When assembled the key engages a keyway in the valve housing to prevent rotation. The groove is of dovetail section and the key is slid into the groove and held in position by means of adhesive. The plastics material of the key may be nylon, polyvinyl chloride or an acetal copolymer or acrylonitrile butadiene styrene copolymer.
Patent GB-1339059-A (GB)
Title: Centrifugal pumps
IPC: F04D29/42
Filed: 1971-06-22
Abstract: 1339059 Centrifugal pumps RUBBERFABRIEK VREDESTEIN N V 22 June 1971 [1 July 1970] 29083/71 Heading F1C A centrifugal pump, e.g. for pumping a mixture of water and sand or gravel, has an exchangeable sheet-metal inner casing 2, Fig. 2, arranged within the main casing 1 and lined at 4 with rubber or other wear-resistant elastic material. The inner casing and liner are fixed to the main casing adjacent the outwater by means which define a circumferential boundary of the space 3 formed between the inner and main casings, Fig. 1, (not shown). The liner may be provided at one or both sides with metal rings 6 by which it is bolted at 7 to a cover 8. The space 3 is filled with fine granular material, e.g. sand, which may be removed when the liner is no longer yieldable due to wear, so that the inner casing can suitably yield during subsequent use.
Patent GB-1505020-A (GB)
Title: Substituted 2-phenylimino-thiazolines a process for their preparation and their use as ectoparasiticides
IPC: C07D277/42
Filed: 1976-07-13
Abstract: 1505020 Substituted 2-phenylimino-thiazolines BAYER AG 13 July 1976 [15 July 1975 21 Nov 1975] 29105/75 Heading C2C Novel substituted 2-phenylimino-thiazolines having the general formula wherein R<SP>1</SP> and R<SP>2</SP> are optionally substituted alkyl; R<SP>3</SP> is optionally substituted alkyl or halogen; R<SP>4</SP> is alkyl, cycloalkyl or alkenyl and n is 0, 1 or 2, or a salt thereof, are prepared by reacting a compound of the formula with a halogenoacetaldehyde or a compound which splits off a halogenoacetaldehyde, and optionally converting the resulting compound into a salt by the addition of an acid. The process is preferably carried out in the presence of a solvent and an acid-binding agent at a temperature of from 20‹ to 80‹ C. The novel compounds may be used as ectoparasiticides.
Patent GB-723435-A (GB)
Title: Improvements in and relating to the production of artificial filaments, threads and the like from viscose
Inventor: TALLIS ERNEST EDWARD
IPC: D01F2/10
Filed: 1952-12-12
Abstract: Artificial filaments &c. are produced by extruding viscose into a coagulating bath containing sulphuric acid and zinc sulphate, in the presence of 1/4 -5 and preferably 1-5 millimols. per 100 grams of viscose of a polyalkylene polyamine having at least 3 amino groups which are not directly united to each other and which are primary or secondary amino groups.  The polyamine may be added to the viscose or to the coagulating bath and the concentration of zinc sulphate in the latter is preferably 0.5-15 per cent.  The polyamines should be soluble in the viscose and the coagulating bath and should therefore contain no hydrocarbon radicals of high molecular weight which confer insolubility and tend to cause retention of the polyamines in the filaments after spinning.  Examples of polyamines are diethylene triamine, triethylene tetramine, tetraethylene pentamine, pentaethylene hexamine and compounds obtained by condensing them with aliphatic alkylating agents having not more than 4 carbon atoms but more than one alkylating group in the molecule, for example 1,3-dichlorhydrin, dichlorethylene, and trimethylene bromide, e.g. the condensation product of 4 mols. of triethylene tetramine with 3 mols. of 1,3-dichlorhydrin.  The process of the invention is preferably used in conjunction with the so-called "hot stretch" process in which the freshly spun filaments are stretched while they are passing through a bath of hot dilute acid as described in Specification 467,500.  In an example a viscose containing 7.5 per cent of cellulose, containing 1 millimol. of diethylene triamine per 100 grams, and having a salt point of 6.0 is spun into a coagulating bath containing 9.5 per cent sulphuric acid, 4.0 zinc sulphate and 20 sodium sulphate at 48 DEG  C.  The filaments thus formed are stretched 65 per cent in a bath at 95 DEG  C. made by diluting the spinning bath to three times its volume. The process of the invention increases the thickness of the skin of the filaments and gives them a smooth surface.  It also reduces their water imbibition and improves their resistance to laundering when wet.  It enables unripened viscoses to be spun. Specifications 652,741, 652,746 and 654,083 also are referred to.
Patent GB-504718-A (GB)
Title: Improvements in or relating to rotary wing aircraft
IPC: B64C27/18
Filed: 1937-10-26
Abstract: 504,718. Aircraft with rotary - wing systems. HUTCHISON, H. H., and GIBSON, J. J. Oct. 26,1937, No. 29173. [Class 4] An aircraft rotor is driven by fluid under pressure expelled beyond the normal blade-tip, the fluid being supplied through the rotor hub and escape of fluid being prevented by means of a fluid seal formed between a stationary flange and a co-operating rotary portion of the hub. As shown, a hub d carrying the rotor blades rotates on a shaft c having a conduit e communicating with a valve-check Q from which air is distributed through pipes h to passages in the rotor blade. The air emerges from rearwardly facing apertures in oval or streamlined cross-sectioned tubes l extending from the blade tips. The tubes l may be withdrawn into the blades by fluid pressure supplied through a pipe r. A stop t limits inward movement of the tube. Loss of air from the valve-chest is prevented by an air seal developed between a flange g and the valve-cheat by grooves h and holes in the flange.
Patent GB-1004490-A (GB)
Title: Solid state device
IPC: G11C11/44
Filed: 1962-07-30
Abstract: 1,004,490. Solid-state devices. RADIO CORPORATION OF AMERICA. July 30, 1962 [Aug. 16, 19611, No. 29249/62. Heading H1K. A solid state device consists of five superposed layers. One of the outermost layers and the central layer are superconductors and the other outermost layer a non-insulator. The intervening layers are of insulation thin enough to permit hole or electron tunnelling. At the operating temperature the forbidden energy gap of the central layer is lower than that of the outermost superconductor but higher than that of the non-insulator. A typical device in which the non-insulator is also a superconductor, illustrated in Fig. 4, is constructed on a plate 75 of mica, or quartz or borosilicate glass as follows. Contacts 31, 33, 33<SP>1</SP>, 35 are provided by spraying on platinum paint or resinate and heating the plate to 400 C. After evaporating tin to form electrode 21, an overlying aluminium oxide layer 20A thick is formed by evaporation of aluminium which is then oxidized in air. A 100A thick layer 23 of lead is evaporated over this and a second aluminium layer formed on top of it as above. Finally a niobium layer 29 is formed by evaporation. During evaporation masking is used to define the area and form of the various layers. Alternative insulating layer materials are silica, deposited by evaporation, and the stearates of barium and chromium which are adsorbed to the underlying layers. The device is operated at liquid helium temperatures at which layers 21, 23, 29 are all superconducting. In an alternative device the layer 21 is a superconductor with a critical temperature below the operating temperature or a non-superconductor such as gold, silver or copper. In operation, the theory of which is discussed, the layers are biased as shown or with the polarities of batteries 39, 45 both reversed an output corresponding to input signal 44 being in either case developed across load 47. The ratio of input to output impedance is determined by the relationship between the forbidden energy gaps in layers 21, 23 and 29 and the relative thickness of the insulating layers.
Patent GB-783433-A (GB)
Title: Improvements in load gripping devices
Inventor: HELPS ARTHUR OWEN
IPC: B66C1/44
Filed: 1954-10-11
Abstract: 783,433. Gripping devices for handling loads. WELDING INDUSTRIES, Ltd. Sept. 9, 1955 [Oct. 11, 1954], No. 29279/54. Class 78 (4). A member 12a depending from the beam 1 carrying the arms 2 of a device for gripping a row of bricks 13 or similar articles divides the row of bricks so as to reduce the maximum bending moment tending to break up the row. As illustrated the member 12a comprises a suitably shaped flat plate pivoted to the beam 1 and carrying angle irons 14 which engage the tops of the bricks 13a to position the gripping shoes 4a coaxially. The gripping device may be locked in its open position by engagement of a pin 15a on an arm 15 pivoted to one of the gripping arms 2 with an arcuate surface on a stop 16 carried by the beam 1. The invention may be applied to gripping devices adapted to lift more than one row of articles simultaneously, and more than one plate 12a may be used in each row.
Patent GB-1010016-A (GB)
Title: Process and apparatus for effecting electrical connections by thermocompression
IPC: H01L21/00
Filed: 1964-07-15
Abstract: 1,010,016. Welding by pressure; shearing. SIEMENS & HALSKE A.G. July 15, 1964 [July 23, 1963], No. 29287/64. Headings B3R and B3W. [Also in Division H1] A method of attaching a wire 6 to a semiconductor (not shown) by heat and pressure comprises feeding the wire through a nozzle 5 by which it is pressed against the semi-conductor, and severing the attached wire by shearing blades 8, 9, the blade 8 having a cutting edge located intermediate its thickness and a cam surface 15 for bending over the end of wire remaining in the nozzle so as to prepare the wire for a further attaching operation. When the cutting edges meet, a further cam surface 13 on blade 8 deflects the blade 9, Fig. 6, causing it to pass beneath blade 8. A block 14 guides and/or limits movement of the blade, through contact with the nozzle. The block 14 may be interchangeable or adjustable in order to vary the severance plane. The nozzle 5 may be of glass and the wire 6 of gold.
Patent GB-598401-A (GB)
Title: Improvements relating to super-regenerative radio receivers of the type associated with transmitting means
IPC: G01S13/78
Filed: 1945-11-05
Abstract: 598,401. Transponders. FERRANTI, Ltd., and WOOD, H. Nov. 5, 1945, No. 29289. [Class 40 (v)] In a transponder of the type employing the same valve as the super-regenerative receiver and transmitter and wherein the sensitivity is maintained constant, means are provided for preventing transmitter triggering signals having an amplitude less than a predetermined minimum from being effective. Input signals applied to the tuned circuit 6 associated with the super-regeneratively operated valve 1 are amplified and fed to a diode 15, generator 7 supplying quench frequency oscillations. The rectified signals, after amplification in pentode 61 are fed as positive pulses to cathode follower 69. The gain stabilizing potential derived in the manner set forth in Specifications 585,353 and 591,965 is applied over resistor 43 to the grid of valve 1, the auto-bias resistorcapacitor 3, 4 maintaining a net-negative bias. Since the cathode of diode 76 is normally positive with respect, to earth, the output from the cathode follower 69 must exceed this bias before the diode conducts to apply the pulse to valve 1 and cause it to oscillate, spurious signals of less amplitude being ineffective. The cathode follower 69 may be replaced by a transformer.
Patent GB-1013260-A (GB)
Title: Improvements in or relating to galleries for lighting fittings
Inventor: BARNICOT JOHN MARTIN
IPC: F21V15/01
Filed: 1963-07-24
Abstract: 1,013,260. Lighting fittings. FALKS Ltd. July 20, 1964 [July 24, 1963], No. 29348/63. Heading F4R. A screw-neck gallery for a lighting fitting comprises a porcelain body 1, 3 and a metallic cover 5 adapted to be located on the body to partially conceal the same. The body has an internal screw thread 4, and the gallery may be tapered with an angularly-inclined lower portion.