baber/WOPTO huggingface dataset:
Patent GB-1303027-A (GB)
IPC: B22D27/04
Filed: 1971-07-05
Abstract: 1303027 Casting processes UNITED AIRCRAFT CORP 5 July 1971 [12 Aug 1970] 31348/71 Heading B3F [Also in Division B1] In the casting of articles for example collumnar or single crystal turbine blades, a mould 2 is positioned on a chill plate 4 which is at the base of a cylinder (formed of a graphite susceptor 6, insulation 8, and a ceramic cylinder 10) surrounded by an induction coil 12. The mould is preheated, e.g. to 1510 C. at the top and 1204 C. at the base, and superheated nickelbase alloy poured into the mould, e.g. at 1538 C. The chill plate is movable relative to the cylinder to withdraw the mould therefrom and so increase the rate of cooling, and crystallization, of the articles. A radiation shield 38 at the base of the cylinder and projecting almost to the mould separates the heated region in the cylinder from the cooler region. The entire apparatus is within a vacuum chamber having cooled walls. An embodiment (not shown) for growing single crystal turbine blades is described, a helix at the base of the blade selecting one of the columnar crystals to start the single crystal. In a further unillustrated embodiment the moulds are filled from a bottom runner and vented at their tops.
Patent GB-823798-A (GB)
Title: Electric power plant for marine propulsion
IPC: B63H23/24
Filed: 1956-10-16
Abstract: 823,798. Transmitting mechanical power. TROTTIER, J. E., and SOC. GRAMME. Oct. 16, 1956 [Oct. 17, 1955; Oct. 2, 1956], No. 31448/56. Class 38 (4). To facilitate synchronizing and parallel running of a number of polyphase alternators 3 connected to one or more motors 8 driving a ship's propeller 9, the alternators are designed with an inherent reactance giving a voltage regulation of 40%, the alternator exciters 4 having a wide voltage range to compensate for this and normally operate at about one-third of their maximum voltage. The regulators may be of the high speed type and may adjust the voltage proportionately to the frequency. The motors may be of the synchronous or asynchro. nous type with single, or double, cages, or wound rotors. The motor stators may be wound to give different pole numbers. The alternators are driven from prime movers 1 whose speed may be controlled by remote regulators.
Patent GB-190455-A (GB)
Title: Improvements in needle combs
IPC: D01H5/14
Filed: 1922-11-17
Abstract: 190,455. Krupp Akt.-Ges., F. Dec. 24, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Gill bars or fallers.-The bars A are formed with a groove a<3> in the upper edge, and are bored to receive the pins B. The holes a<4> are of two diameters, the upper part being larger than the lower part. The pins are a friction fit in the upper part when driven in, and the heads in the groove are secured by solder.
Patent GB-274345-A (GB)
Title: Improvements in universal joints
IPC: F16D3/46
Filed: 1926-12-11
Abstract: 274,345. Walker, G. H. Dec. 11, 1926. Universal joints comprise internally-concave shaft-members a, b, Fig. 10, embracing an intermediate member l formed as shown in Fig. 2, by the perpendicular intersection of two cylinders. one or both of the members a, b being formed into a closed loop, as by holts f and distance-pieces. The part l may be generated by cylinders of unequal diameter, and may be made hollow by coring, by removing metal from the solid, or by welding together four pieces cut from tubing, as shown in Fig. 8. One or more grooves c may be cut in each face of the parts a, b, l, and elastic rings d sprung into them to assist torque transmission, holes e being provided for the insertion of a tool to compress the rings when the joint is dismantled. Rotation of the rings may be prevented by stops &c. The parts a, b may be split, as along the line CC, and the rings d made integral with the inner or outer parts. In a modification, the member l, Figs. 12 and 14, has its inoperative portions hollowed out, as shown at j, and is provided with ribs d<1>, d<2>. The ribs d<1> engage a grooved ring a<1> having notches m at one side to give passage to the ribs when turned through 90‹, while the ribs d<2> engage grooved blocks b<1>, b<2> bolted &c. to a cup k secured to a shaft &c. Lubricating passages or chambers may be provided in either form of joint.
Patent GB-1378464-A (GB)
Title: Process for purifying 2-cyanoethyl ketones
Filed: 1973-07-03
Abstract: 1378464 Purification of (2-cyanoethyl) ketones STAMICARBON BV 3 July 1973 [6 July 1972] 31618/73 Heading C2C (2-Cyanoethyl) ketones, obtained by the reaction of ketones with acrylonitrile in the presence of amines and/or compounds derived therefrom as catalysts, are purified by subjecting the reaction products to distillation to distil off a catalyst-containing fraction and treating the remaining reaction product with acid materials. The treatment with the acid material may be effected by passing the material over an acid ion-exchanger or by treating it with an aqueous solution having a pH below 3 and then removing the reaction product from the reaction mixture, e.g. by recovering the reaction product by separating the two liquid layers into which the mixture may separate, or by subjecting the mixture to an extraction step.
Patent GB-1115499-A (GB)
Title: New azo dyestuff and the production thereof
Inventor: HAUBRICH HEINZ
IPC: C09B29/36
Filed: 1967-07-10
Abstract: The dye having the formula <FORM:1115499/C4-C5/1> is prepared by diazotizing 2,4,5-trichloroaniline and coupling to 2-phenylindole. The dye gives yellow shades on aromatic polyesters and synthetic superpolyamides.
Patent GB-1310009-A (GB)
Title: Multi-needle lock-stitch sewing machines
IPC: D05B11/00
Filed: 1971-07-06
Abstract: 1310009 Sewing machine PATHE EQUIPMENT CO Inc 6 July 1971 [6 July 1970] 31712/71 Heading D1G A multineedle lock stitch sewing machine having a number of needles 18 each co-operating with a single reciprocating shuttle 31 is characterised by each of the needles 18 being provided with a second needle 18<SP>1</SP>, the needles 18, 18<SP>1</SP> together constituting a set, the thread loops presented by the needles of a set being engaged by that single shuttle 31, the machine also including a work supporting plate having openings each of which comprises a slot for the passage of a set of needles. In the quilting machine disclosed two rows of needles 18, 28 are provided having a row 18<SP>1</SP> 28<SP>1</SP> respectively of companion needles, all the needles being on a common needle bar 17. A work carriage 19 has rolls 20 moving the work transversely of the needle bar 17 and has rollers permitting its movement parallel to the bar, under the influence of cams on a cam shaft (24, Fig. 1, not shown). The shuttles 31, 32, are carried on a shuttle holder 30 reciprocated by a slide rod 36 and linkwork. The pivot pin 44 is adjusted to provide the increased shuttle movement to cooperate with both needles of a set. The needle bars and shuttle races may be inclined to the work direction. Stitches, seams, embroidery. The resulting stitch has two upper threads 52, 52' and a single locking thread 53, the work between the upper threads becoming upwardly arched at P to provide the appearance of a piped seam. Padded work, feeding long lengths by rollers. The work which comprises two sheets, with wadding therebetween, is drawn across the work carriage 19 by the rolls 20.
Patent GB-776183-A (GB)
Title: An improved method of manufacturing film and sheet material
IPC: B29C48/08
Filed: 1954-11-03
Abstract: The invention of the parent Specification according to which films are made by flowing a stream of film-forming material on to a moving casting surface whilst maintaining a pressure differential between the two sides of the film to prevent fluttering, the pressure on the side coming into contact with the casting surface being 0.7-5 inches of water lower than on the other side, is modified by increasing the pressure differential to between 5 and 8 inches of water.  The bigger pressure differential enables the film to be produced at higher speeds.
Patent GB-505915-A (GB)
Title: Improvements in bearings
IPC: F16C17/22
Filed: 1937-11-19
Abstract: 505,915. Bearing bushes. VOLMAN, J. Nov. 19, 1937, No. 31833. Convention date, Nov. 20, 1936. [Class 12 (i)] A plain bearing bush 2 for high-speed shafts has, on its outer surface, ribs 8 inclined tangentially, or nearly so, to the inner circumference of the bearing, leaving a comparatively thin inner ring or cylinder 5. The ribs E are strong enough to support the bearing load, but yield to forces due to the expansion of the inner ring 5 due to heat. Some of the slots 6 between the ribs 8 extend for a part of their axial length to the inner surface of the bush for the introduction of lubricant to the bearing surfaces.
Patent GB-1102501-A (GB)
Title: Improvements relating to thin film magnetic data storage apparatus
Inventor: GIBSON ANTHONY THOMAS
IPC: G11C8/02
Filed: 1963-08-13
Abstract: 1,102,501. Magnetic thin-film matrix stores. ELECTRIC & MUSICAL INDUSTRIES Ltd. 4 Aug., 1964 [13 Aug., 1963], No. 31899/63. Heading G4C. [Also in Division H3] A thin-film magnetic storage matrix comprises word address lines W1-W4 parallel to the easy direction of the film elements A 11  &o., and sense conductors S 1 -S 4  and digit (write) conductors D 1 -D 4 . A read-write cycle is effected by applying a pair of pulses AD 1 , AD 2   to the base of one of the transistors GT 1 , GT 2  and simultaneous negative pulses to the base of one of DT 1 , DT 2 . This causes a single diode (SD 1  &c.) to conduct and apply pulses to the selected row, reading out the word on to lines S 1  &c. A pulse DP of a sense to represent the bit to be stored is applied to each digit line D 1  &c. in synchronism with the pulse AD 2 .
Patent GB-957792-A (GB)
Title: Stop actuating mechanism for spinning frames
IPC: D01H11/00
Filed: 1960-09-16
Abstract: 957,792. Stop motion. E. JACOBI, and H. BECK, [trading as ERNST JACOBI & CO. KOM. GES.]. Sept, 16, 1960 [Feb.19, 1960], No. 31902/60. Heading D1D. In a stop motion mechanism for a spinning frame of the kind having an intercepter in an air stream to catch fly from a sliver breakage, the fly is received on a moving element (e.g. the surface of a revolving drum) by which it is moved to engage and operate a switch mechanism to stop the frame. In Fig. 3 tufts 15 of fibres sucked away from a breakage are received on the teeth of a series of thin parallel discs 5 mounted fixedly on a driven shaft 2 in a suction table 1. A pivoted member 8 normally has its lugs 10 extending between the discs 5 but it is lifted in the event of a thread breakage by the tufts 15 which are subsequently blown clear of the discs by the air stream. The member 8 when lifted operates a switch 12, 13 which in turn effects stoppage of the machine. The discs 5 have roughened edges and their separation in the spindle 2 may be adjustable. A resilient cover may be placed between the suction tube and the switch to prevent dirtying of the contacts. In Fig. 6 in which the tufts 15<SP>1</SP> are caught on a drawn 17 having a wall of fine mesh and lift a plain member 18 to operate the machine stopping switch, the inside of the drum 17 is divided into compartments 21, 22 and a suction blower is mounted between them so that the pressure in 21 is lowered to improve adhesion of the tufts and the pressure in 22 is raised to assist in removal of the tufts. A solid drum roller having a roughened, fibre holding surface may alternatively be used. The member 8 or 18 may be of a plastics material or light metal and it may be counterbalanced by spring action or by a weighting arrangement.
Patent GB-1488058-A (GB)
Title: Optical fibre element
IPC: C03C25/10
Filed: 1975-07-30
Abstract: 1488058 Light guides INDUSTRIE PIRELLI SpA 30 July 1975 [2 Aug 1974] 31908/75 Heading G2J An optical fibre element for an optical cable comprises an optical fibre and at least three filaments all embedded in an elongated member of rubber or plastics material, the filaments being spaced from each other and from the fibre. The filaments are of metal, and are equally angularly spaced about the fibre, which is centrally located. The member may be of a thermoplastics material, and may contain carbon black. A plurality of such elements may be stranded together within a sheath, see Fig. 3 (not shown), or may be helically wound about a sheathed core of stranded metal wire, Fig. 4 (not shown).
Patent GB-792549-A (GB)
Title: Process for the manufacture of leather
IPC: C14C3/18
Filed: 1955-11-08
Abstract: Amphoteric condensation products of a polyhydric phenol, an amine or ammonia and an aldehyde, containing one or more mols. of amine or ammonia per mol. of phenol are used in tanning and retanning leather (see Group VIII).  In one example, a concentrated solution of ethanolamine, hydrochloric acid and resorcinol is mixed with a 30 per cent formaldehyde solution at 20 DEG  C.; the temperature rises to 85 DEG  C. and the mixture is thereafter heated on a water bath.  The product is a mobile solution having a pH of 2.8.  The ethanolamine could be replaced by a water-soluble amine such as allylamine, dimethylamine and morpholine and the resorcinol could be replaced by catechol or pyrogallol.  In the second example a concentrated solution of catechol, ethanolamine, hydrochloric acid and formaldehyde is heated on a water bath and then boiled under reflux till the aldehyde vapour has disappeared.  In the third example, finely powdered ammonium chloride and a 30 per cent formaldehyde solution are successively mixed into a warm resorcinol solution.  The temperature rises to 80-90 DEG  C. and the mixture is heated on a water bath.  The supernatant liquid is discarded: crystals may separate from the product, which has a pH of 4.1.  The resorcinol can be replaced with catechol or pyrogallol.  It is stated that the condensation products are readily soluble and that their sulphates and organic acid salts are of improved solubility.  The Specification also refers to the use for tanning of a phenolic substance containing sulpho groups which may be obtained by sulphonating a low molecular weight phenolic resin.  Specification 747,094, [Group VIII], is referred to.
Patent GB-428615-A (GB)
Title: Improvements relating to the manufacture of permanent magnets
IPC: B22D19/00
Filed: 1933-11-16
Abstract: 428,615. Casting permanent magnets. LUCAS, Ltd., J., and WATSON, E. A., Great King Street, Birmingham. Nov. 16, 1933, No. 31946. [Class 83 (i)] Moulds.-A mould for use in the casting of permanent magnets has a casting chamber of a metal of good thermal conductivity surrounded by a relatively massive metal body having a high latent heat of fusion and a melting temperature of about that at which the heat treatment of the casting is to be effected. The casting-chamber a of copper is supported concentrically within an iron shell b by a number of radial copper ribs c, the spaces between the ribs being filled with aluminium d which has a high latent heat of fusion and serves therefore first to cool the casting then maintain its temperature prior to the final cooling.
Patent GB-1123080-A (GB)
Title: Power supply apparatus for arc producing equipment
IPC: H02H7/20
Filed: 1967-07-11
Abstract: 1,123,080. Control systems for arc producing apparatus. SIEMENS A.G. 11 July, 1967 [12 July, 1966], No. 31949/67. Heading H2H. Arc producing apparatus 7 fed from a rectified A.C. supply and provided with a high frequency device 8 for initiating the arc is further provided with means for shunting or short-circuiting the input to the device 8 after the arc 7 is struck so as to disable the device, filter circuits 5, 6; 22, 23 being incorporated into the supply circuits to prevent high frequency transients from reaching the supply. Closure of switch 17 energizes the high frequency device 8 to strike the arc 7 and also energizes transformer 11 to supply anode-cathode potential for a thyristor 9. When the are 7 strikes and takes a supply from rectifier 1, a pulse is developed by a transformer 2 which fires the thyristor 9. Firing of thyristor 9 gates a second thrystor 10 whereupon a shunt circuit is developed across the input to the high frequency device 8 so as to reduce its applied voltage thus to terminate the functions of the device. When the current in the arc 7 is sufficient the potential across a resistor 3 energizes relay 15 to remove the supply to the high frequency device 8. A thermal switch 16 is provided in the supply to the device 8 for protective purposes. The rectifier bridge 18 and thyristor 10 may be replaced by a pair of back-to-back thryistors.
Patent GB-1404661-A (GB)
Title: Furnace electrode clamp
IPC: H05B7/103
Filed: 1972-07-07
Abstract: 1404661 Arc furnace electrode clamps BRITISH STEEL CORP 5 July 1973 [7 July 1972] 32015/72 Heading H5H A furnace electrode clamp comprises a metal body on which is mounted at least one graphite pad against which the electrode is clamped, The graphite pads 16 are retained in the clamp body 1 by key slots, such as dovetail suction slots, and the electrode 10 is forced against the pads by a stainless steel band 9 having two inwardly protruding surfaces 11 which firmly contact the electrode. The steel band is moved to clamp the electrode by a stirrup member 6 movably hydraulically or pneumatically. The graphite pads slide longitudinally in their key slots and are retained at their lower ends by a seating of insulating material and at their upper ends by stainless steel plates. The clamp body is of copper and has water cooling conduit 12 running through it alongside the pads.
Patent GB-786689-A (GB)
Title: Improvements relating to elastic-fluid turbines
Inventor: ZIMMERMAN DONALD G
IPC: F01D25/24
Filed: 1955-11-09
Abstract: 786,689. Bladed turbine casings. GENERAL MOTORS CORPORATION. Nov. 9, 1955, No. 32021/55. Class 110 (3). An elastic-fluid axial-flow turbine comprises an annular casing, a pair of stator vane shroud rings each divided axially into segments, a circumferentially-extending tongue and groove joint between the casing and the segments of both rings by which joint the segments are mounted and centred within the casing with freedom for expansion in the circumferential direction, keys being inserted into slots in the joint to locate the segments of each ring circumferentially so that there are expansion gaps between them when cold. A multi-stage axialflow gas turbine is shown and comprises four blading stages 54 carried on shroud rings 82, 88, 76, 70 which are in turn carried by the outer casing comprising an inlet portion 14, an intermediate portion 12 and an outlet portion 10. An exhaust casing structure 20 is connected to the portion 10. The bladed rotor discs are shown at 40 and the spacer discs at 42. The first stage shroud ring 82 is formed with a grooved flange 84 at its downstream end and a ridge 86 which bears against the casing portion 14. Flanges 66 on the intermediate casing 12 and 90 on the second stage shroud ring 88 are received in the groove in the flange 84 of the first stage shroud ring, the inlet and intermediate casings being connected together by bolts 18. The second stage shroud ring 88 is formed at its downstream end with a flange 92 which together with a flange 80 on the third stage shroud ring 76 is formed with a flange 78 and this together with a flange 62 on the downstream end of the intermediate casing 12 is received in a groove in the flange 72 on the upstream end of the fourth stage shroud ring 70. A flange 74 on the downstream end of the fourth stage shroud ring 70 is received in a groove 60 in the outlet casing portion 10. The circumferential tongue and groove joints between the shroud rings and the casing portions are slotted axially to receive keys 98, 96. The shroud rings are cut into segments by slots more or less parallel to the rotor axis so as to allow for expansion.
Patent GB-613046-A (GB)
Title: Crutches
IPC: A61H3/02
Filed: 1945-11-27
Abstract: 613,046. Crutches. KLAUSNITZER, F., and BATTLES, G. W. Nov. 27, 1945, No. 32031. [Class 81(ii)] A crutch has a sleeve 13 attached to the lower end of its shank 5 in sliding telescopic engagement with a sleeve 15 secured to a ground engaging member 10 (with rubber ferule 12) a bolt 18 attached axially to the lower end of shank 5 and extending slidably through a holding disc 17 secured to the sleeve 15, the bolt head 19 engaging the under face of the holding disc when the device is extended, and a helical spring 21 surrounding the bolt and arranged between the end face of shank 5 and the upper face of the holding disc. A rivet 14 passes through the sleeve 13, the shank 5 and the bolt 18 to secure them rigidly.
Patent GB-392583-A (GB)
Title: Improvements in and relating to cathode ray apparatus
IPC: H04N5/84
Filed: 1931-11-19
Abstract: 392,583. Cathode-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Sabbah, C. A. ; 1, Washington Avenue, Sohenectady, New York, U.S.A.) Nov. 19, 1931, No. 32126. Convention date, Nov. 19, 1930. [Classes 39 (i) and 40 (iii).] A cathode-ray tube for producing or reconstructing the image in picture transmission systems, or for recording wave forms, has an internal wall 10, Fig. 1, which divides the tube into two airtight compartments, and is formed of a number of transverse conductors so that it has a higher conductivity transversely than in other directions, the cathode ray being diverted against one side of the wall and an auxiliary anode 14 being arranged in the gas-filled compartment 23 remote from that in which the ray is produced, the intensity of the glow varying with the intensity of the impinging ray. The internal wall may consist of a number of wires 11, Fig. 3, separated by insulation 12, or the conductors may consist of graphite crystals. The anode 14 consists of a gauze screen. A perforated shield 8, connected with the cathode 5, is arranged between the cathode and the anode 6, and the beam is deflected by pairs of plates 17, 18 and 19, 20. The filling in the compartment 23 may consist of a mixture of neon and helium with or without sodium, or of a mixture of caesium and mercury vapour. The image may be observed through the gauze anode 14 or may be photographed.
Patent GB-1604856-A (GB)
Title: Use of certain polyol toxicants as ectoparasiticides or ovicides
IPC: A01N31/02
Filed: 1977-10-18
Abstract: The diols used have both of their hydroxyl groups in non-adjacent positions, and are preferably 2-methyl-2,4-pentanediol, or a 1,3-diol such as 1,3-butane-, 1,3-heptane- or 1,3-nonanediol or preferably 2-ethyl-1,3-hexanediol. These compositions have an ovicidal and acaricidal, and in some cases, pediculicidal activity. The diols are the only active ingredients or are parasiticidal constituents in addition to other pesticides.
Patent GB-321322-A (GB)
Title: A combined screwdriver and gimlet
IPC: B25B23/00
Filed: 1928-11-05
Abstract: 321,322. Redmayne, G. Nov. 5, 1928. Augers.-A combined screwdriver and boring instrument such as a gimlet or bradawl consists of a tube 4 fashioned at one end into a screwdriver blade 1 and containing the gimlet &c. 2, which is slidable therein so as to be projected into operative position. The gimlet &c. may carry a stud 3 slidable in a bayonet slot and may be withdrawn by a spring 5 in the case of a gimlet.
Patent GB-282046-A (GB)
Title: Air blower for dental purposes
IPC: A61C17/00
Filed: 1927-12-01
Abstract: 282,046. Lubke, A. Dec. 11, 1926, [Convention date]. Air douches. - An air douche for dental purposes comprises a piston pump preferably double - acting, the piston e of which is driven through a crank and connecting-rod c', c from a worm and wormwheel mechanism a<1>, b the worm a<1> being driven through a coupling member a housed in a sleeve A' from the flexible shaft of a dental engine. The appliance is enclosed in a casing A having partitions q, t. Air is supplied to the compression spaces through automatic valves g, and is delivered to a chamber h and thence to a detachable nozzle m, through automatic valves d in the piston e and a central tubular extension s thereof. The air delivered may be heated by an electric heater k supported on a ring i and supplied with electric current by leads o enclosed in an insulating tube n. A rheostat may be provided in the electrical circuit.