baber/WOPTO huggingface dataset:
Patent GB-524369-A (GB)
Title: Improvements in or relating to the machining of tapered surfaces
IPC: B24B33/02
Filed: 1939-01-28
Abstract: 524,369. Honing tapered bores. MICROMATIC HONE CORPORATION. Jan. 28, 1939, No. 3021. Convention date, Feb. 3, 1938. [Class 60] Apparatus for honing tapered bores, for example, in large rifles &c. to receive a rifled liner, comprises a hone having the abrading-elements sloped relatively to the axis of the hone, means being provided for expanding and contracting the hone in proportion to its axial traverse so as to generate a bore of' the desired taper. The apparatus comprises means for holding the work-piece 10, the bore 11 of which is to be honed, and a honing-head 12, a driving shaft 13 and an operating-head 15 mounted on a machine bed 67. The head 12 has a housing 16 with flanges 17, 18, in which are radially adjustable pins 23, 24 engaging the sloped abrading-elements 19 and movable by a member carrying cones 21, 22 ; the elements 19 are retracted by garter springs 25. The end 26 of the head is connected to the shaft 13 by a ball and slot type of universal joint 27, and the end 28 of the cones is connected to an adjusting rod 14, lying in the shaft 13, by a universal joint 29. The shaft 13 at its outer end is connected through a .universal joint 36 with a hollow shaft 37 running in bearings 38 and driven from a motor 44 through belt and spur gearing 39, 41, 43 in the head 15. The rod 14 extends through the shaft 37 and is rotatably secured, through bearings 46, to a threaded shank 48 engaged by the threaded hub of a worm wheel 52, split to avoid backlash, and engaged by a worm 53. Slidably keyed to the shank 48 is a handwheel 54 the hub of which is journalled on a hub 58, balls 59 preventing axial movement of the wheel 54, and spring pressed balls 63 serving to lock the wheel in adjusted position ; rotation of the wheel causes axial movement of the shank 48 and the rod 14 to expand or contract the elements 19. In order to produce automatically the required expansion and contraction of the elements 19 as the hone is traversed axially in the bore, the head 15 is mounted to run on rollers on the bed 67 and is traversed by hand or by a screw 60, and on the bed is mounted a rack 64, split to avoid backlash, engaging a pinion 65 carried by the head. The pinion drives, through change gearing 66, arranged to suit the desired taper, the worm 53, thus rotating the threaded hub of the worm wheel 52 to move the shank 48 axially ; the handwheel 58 serves to adjust the elements 19 initially and for wear. In a modification, movement of the adjusting-rod 14 is caused by a cam track movable transversely of the machine bed by a second cam track along which a roller, carried by the first cam track, moves as the head 15 is traversed along the bed ; springs ensure engagement of the parts with the cam tracks and return movements of the parts. The head 12 may be non-rotating, the work in this case rotating, or both the head and the work may rotate.
Patent GB-898311-A (GB)
Title: Process for dyeing mixtures of polyacrylonitrile fibres and protein fibres by means of basic dyestuffs
IPC: D06P3/82
Filed: 1960-01-28
Abstract: In the dyeing of mixtures of fibres of polymers or copolymers of acrylonitrile with protein fibres such as wool, with basic dyestuffs, improved results are obtained if the mixture is treated, before or during dyeing, with a wool resist comprising a highly polymeric vinyl compound containing a quarternary ammonium group.  An aqueous dispersion or solution of the resist may be added to the dyebath or may be applied to the fibre mixture as a pre-treatment.  Specified resists are the quaternary ammonium salts of polymers of acrylic acid- and methacrylic acidb -dimethylamino-ethyl ester, -b -diethylaminoethyl-ester, -b -pyrrolidino-ethyl ester or -b -morphilino-ethyl ester, or of polymers of acrylic acid- or methacrylic acid-b -dimethylamino-ethyl amide or -g -dimethyl-amino-propylamide.  Examples are given.
Patent GB-798671-A (GB)
Title: Improvements in or relating to a semi-conductor modulating device
IPC: G01R33/07
Filed: 1955-02-03
Abstract: 798,671. Semiconductor circuits; amplitude modulating systems. SIEMENS-SCHUCKERTWERKE AKT.-GES. Feb. 3, 1955 [Feb. 4, 1954], No. 3224/55. Addition to 797,505. Classes 40 (5) and 40 (6). A modulating device comprises a semiconductor member of semiconductor material having a carrier mobility of at least 6000 cm.<SP>2</SP>/V sec. which is subjected to an alternating magnetic field so as to provide, in conjunction with an electrical input, a modulated Hall output. In the Figure, the alternating magnetic field is supplied by coils 2 and 3 fed from an alternating current source 4. The semiconductor 1 has a direct voltage applied across it between terminal 5 and 6 from source 7, so that an alternating Hall voltage is produced between terminals 8 and 9 to supply the modulated output at terminals 10. The source 7 may consist of a thermo-couple. The semiconductor material may consist of InSb or InAs. Use of a semiconductor material having a wide forbidden energy band avoids variation of the modulation effect with temperature. Specification 797,506, [Group XXXVI], is referred to.
Patent GB-877874-A (GB)
Title: Method of producing polycyclic aromatic boron-containing compounds
IPC: C07F5/02
Filed: 1960-01-29
Abstract: An aromatic polycyclic boron compound containing at least one boron bonded directly to a ring carbon is made by reacting under substantially anhydrous conditions, at a temperature of -80 DEG C. up to a temperature corresponding to the reflux temperature of the reaction mass the following mixture (a) a polycyclic aromatic hydrocarbon, (b) a boron compound of the formula R3-mBYm wherein Y is a halogen atom or the radical OR; and R is a hydrocarbon radical in which any unsaturation between adjacent carbon atoms is a double bond; and m has the value 1, 2 or 3, and (c) an alkali metal.  The reaction may be effected under atmospheric or superatmospheric pressure, and in the latter case the maximum temperature may be as high as 200-250 DEG C.  An inert solvent such as aliphatic mono- or polyethers, especially tetrahydrofuran and 1,2-dimethoxy ethane, may be used.  In Examples, (1) b -naphthylboronic acid is made from naphthalene and n-butyl borate with sodium; (2) b -naphthylboronic acid is reacted with diethanolamine to form iminodiethylnaphthylboronate; (3) biphenyl, sodium and boron trifluoride react to form a mixture of biphenylboronic and borinic acids; (4) polydihydronaphthalene boronic acid is made from naphthalene, n-butyl borate and sodium; (6) sodium tetra-n-butoxyborohydride is made from sodium, naphthalene and butyl borate; (8) naphthalene, methyl borate and sodium are reacted to form b -naphthyl boronic acid, with sodium tetramethoxyborohydride as byproduct, and the former is converted to b -naphthylboroxine by heating with benzene; (9) anthracylboronic acid and (10) a mixture of phenanthrylboronic acid and borinic acid, are made as in (8); (11) naphthalene, sodium and phenylborondichloride are reacted giving a mixture of boron-containing compounds; (12) as in (11) using diphenylchloroborane; in other examples the reactants of (8) are replaced as follows: (14) naphthalene by a -methyl naphthalene; (15) methyl borate by dimethyl phenylboronate; (18) as in (3) using boron triiodide; (19) as in (3) using tolane.
Patent GB-1208985-A (GB)
Title: Apparatus on an aircraft to indicate the extra lift available from said aircraft before a chosen stall warning angle of attack is reached
IPC: B64D37/02
Filed: 1968-01-22
Abstract: 1,208,985. Aircraft instruments. ROSEMOUNT ENG. CO. 22 Jan., 1968 [10 Feb., 1967], No. 3279/68. Heading B7W. On the exterior of an aircraft is mounted a probe 10 having two ports 14, 15 facing partly forwardly in two directions 16, 17 within a vertical plane, so that when the pressures P 1 , P 2  at said two ports are equal, the aircraft is at its maximum safe angle of attack, there being a differential pressure sensor which supplies an indicator (e.g. a pointer 36 moving on a scale) with a reading proportional to (P 1 -P 2 ). The reading is stated to give the percentage of the available lift which is being used by the aircraft. As shown the pressures P 1 , P 2  are carried by tubes 20, 21, each of which has a narrow bore section 29 to act as a damper on pressure fluctuations, to the two sides of a diaphragm 25 the movement of which is transmitted by linkwork 31 ... 35 to the pointer 36.
Patent GB-556085-A (GB)
Title: Improvements in method and apparatus for drawing cold metal strip or sheet
IPC: B21C37/02
Filed: 1942-03-16
Abstract: 556,085. Rolling; drawing. SIMONS, A. March 16, 1942, No. 3441. [Class 83 (iv)] The thickness of an elongated workpiece is reduced by drawing it between a pair of relatively adjustable, parallel, cylindrical rods, rolls, or dies which are supported throughout their operative length and oppositely reciprocated axially to reduce friction of the work. The rods &c. may also be rotated in the feed direction but at a surface speed less than that of the drawn product. The rods 52, 53 may be coupled to stub shafts 52a, 53a which are rotated through gears 42, 43 from a driven shaft 38 and are moved axially by linkages 59, 58, and 60 and a swash plate 46 which is also rotated by the shaft 38. The rods 52, 53 are carried in openside tubular bearings 54, 55, Fig. 4, secured in blocks 56, 57, the latter being fixed but the former vertically adjustable by means of screws 75, Fig. 1, worm gearing 72, and a hand-wheel 67. The work strip 87 is drawn between the rods 52, 53 by one of the drums 33, 34, Fig. 2, driven through gearing 22, 23 by a reversing motor 16, the strip coming from the other drum and passing through wipers 102, and 81 and over guide rollers 76. Lubricant is supplied by a pump 97, Fig. 1, to the space 89, Fig. 4, and flows by passages 82, 83 back to a sump 94. In a modification the rods are rotated and reciprocated by flanges rollers 106, 106, Fig. 10, which are themselves actuated by the mechanism previously described.
Patent GB-555768-A (GB)
Title: Improvements in and relating to fusible elements for cartridge fuses
IPC: F42B3/12
Filed: 1942-03-17
Abstract: 555,768. Fusible cut-outs. BESWICK, K. E., BESWICK, D. G. E., and MELBOURN, W. F. March 17, 1942, No. 3545. [Class 38 (i)] A fusible element 2 is supported by means of sheaths 1 of metal or insulation secured in the end caps of a fuse cartridge. The exposed central portion of the element may be of reduced cross-section, may be bent to a U or zig-zag shape and may be passed through a baffle 8. The sheaths may be flattened or crimped on to the element and insulating beads 4 may be located near the exposed portion to check arcing.
Patent GB-835691-A (GB)
Title: Improvements in and relating to piezo-electric transducers
Inventor: BRADFIELD GEOFFREY
IPC: H04R17/00
Filed: 1955-02-07
Abstract: 835,691. Percussive tools. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 7,1956 [Feb. 7, 1955],No. 3599/55. Drawings to Specification. Class 124. [Also in Group XL(b)] A cutting tool is actuated by a tubular, ceramic, piezo-electric crystal (see Group XL(b)) which vibrates in a torsional mode. The vibrations are propagated along a tube into which a liquid abrasive suspension is fed at a velocity node. The tube is terminated by a resonating, tapered, tubular section and a tubular cutting tool as described in Specification 758,631. Specification 798,903 also is referred to.
Patent GB-507443-A (GB)
Title: Improvements in or relating to covers for the seats of water-closets
IPC: A47K13/16
Filed: 1938-02-04
Abstract: 507,443. Closet-seat. guards. WARR, C.- DENYER-. Feb. 4, 1938, No. 3609. [Class.26] A closet-seat guard of paper &c. has a sub stantially oval external periphery and opening, the latter having riot more than four radial indentations, or rows of perforations, 16, each along a major or minor axis of the opening. Specifications 3046/95 and 21354 /11, [both in Class 26], are referred to.
Patent GB-557973-A (GB)
Title: Methods of producing puffed cereal flakes and the products of said methods
IPC: A23L1/18
Filed: 1942-03-18
Abstract: 557,973. Cereal preparations. NATIONAL BISCUIT CO. March 18, 1942, No. 3618. Convention date, July 2, 1941. [Class 58] [Also in Group VI] Puffed hollow cereal flakes, generally of oval crosssection, are prepared by cooking a dough made of cereal flour, sugar, malt or other flavouring and water until it forms a caramel-like mass, cooling and separating the mass into pieces, repeatedly kneading and drying the pieces until they become light in colour, forming the pieces into flakes, puffing the flakes by heat into hollow bodies and toasting the puffed flakes. Salt may be included. The dough may be cooked in a steam pressure cooker and the cooking time shortened by adding a small amount of citric acid or an acid or alkaline salt. The mass is broken or cut into small pieces on a perforated or open-mesh belt through which cool air is blown. The pieces are kneaded by repeated rolling or sheeting or, preferably, by extrusion in multiple strings two or three times, the strings being surface-dried after each extrusion on an open-mesh belt through which air is blown. The strings are cut into pellets, which are then rolled into flakes and fed by a conveyer to a puffing and toasting oven, preferably an inclined rotary oven having an inner perforated drum divided by a circular baffle of smaller diameter into an upper puffing, and a lower toasting, zone.
Patent GB-648465-A (GB)
Title: Improvements in tenter drier
IPC: F26B13/02
Filed: 1948-02-09
Abstract: 648,465. Drying fabrics. MORRILL, F. B. Feb. 9, 1948, No. 3755. Convention date, June 27, 1942. '[Class 34(i)] In a tenter drier air blowers are provided at. the sides of the runs of fabric between alternate runs and which discharge their blasts lengthwise of the runs. Fabric 2 is carired by tenter chains 3 in tracks 5 and between the latter and the side wall 1 of the housing are located in series of involute blowers 25 one above the other on a common drive shaft 27. Ducts 37 project inward from each side of the machine from each blower housing for half the width of the machine, having their discharge openings 39 faced lengthwise of the runs of fabric toward the front of the machine, the ducts being curved at their inward ends and having curved vanes 41 to turn the transverse air blasts a quarter turn and direct them lengthwise of the fabric. Baffles 43 fixed to the chain tracks 5 are applied 45 are provided in baffles 43 and may be opened to permit the escape of air. Air blown through the fabric enters the space 40 between the chain tracks 5 and the side walls 1 and returns tc the blowers, being heated by heaters 47 and passing through screens 53 which remove lint &c. A drier having twice the capacity may be constructed by placing two unit driers end to end thus doubling the length of run.
Patent GB-1468025-A (GB)
Title: Floor for sports activities
IPC: E01C13/00
Filed: 1973-12-12
Abstract: 1468025 Floor structure ROLL-RINK SA 12 Dec 1973 03777/76 Divided out of 1468024 Heading E1W The disclosure of this specification is similar to that of Specification 1468024 but the claim relates to a floor comprising a plurality of elongate members 10 each having a base and a flat upper face portion provided with a plurality of parallel grooves 14-16, together with a plurality of tiles each having connector studs 20 depending from a rear face, longitudinally spaced along and engaged in each of the grooves.
Patent GB-1450862-A (GB)
Title: 6-triazolyl-2-benzofurans and optical brighteners
IPC: C09B57/00
Filed: 1974-01-29
Abstract: 1450862 6-Triazolyl-2<SP>1</SP>-benzofurans BASF AG 29 Jan 1974 [30 Jan 1973] 03970/74 Heading C2C [Also in Division C4] Novel 6-triazolyl-2<SP>1</SP>-benzofurans having the general formula where R, R<SP>1</SP> and R<SP>3</SP> each denote hydrogen, chloro, bromo, cyano, carboxyl, a sulphonic acid group, phenylsulphonyl, alkyl, alkoxy, carbalkoxy, alkylsulphonyl, alkoxysulphonyl having 1 to 5 carbon atoms per alkyl group, and carbonamide or sulphonamide which may be mono- or disubstituted by alkyl of 1 to 4 carbon atoms, #-hydroxy-alkyl of 2 to 4 carbon atoms or #-carbalkoxyalkyl of 4 to 9 carbon atoms, in the case of disubstitution both substituents being able via the amide nitrogen to form a ring, R<SP>2</SP> denotes hydrogen, alkyl of 1 to 5 carbon atoms, or phenyl, and A denotes the remaining members of a phenylene, naphthylene or acenaphthylene radical which may be substituted and which is free from nitro groups, are prepared by subjecting a compound of the formula to oxidative ring-closure. The novel compounds may be used as optical brighteners for polymeric compounds.
Patent GB-527698-A (GB)
Title: Improvements in or relating to working fluids and processes of producing cold by the absorption refrigerating principle
IPC: C09K5/04
Filed: 1939-02-07
Abstract: 527,698. Refrigerating. WILLIAMS OIL-OMATIC HEATING CORPORATION. Feb. 7, 1939, No. 3979. Convention date, Feb. 16, 1938. [Class 29] Absorption systems.-A volatile halogenated hydrogen-containing hydrocarbon, particularly dichlormonofluormethane, or methylene chloride is used as a refrigerant with a lower alkyl phosphate, particularly triethyl, tripropyl and tributyl phosphate as absorbent. The substances may be used in pressure-equalized systems. The Specification, as open to inspection under Sect. 91, comprises also the use of the phosphates as absorbents of halogenated hydrocarbons from gas or vapour mixtures and as stabilizers. This subject-matter does not appear in the Specification as accepted.
Patent GB-253034-A (GB)
Title: Improvements in and relating to the preservation of bacon and the like
IPC: A23B4/00
Filed: 1926-02-12
Abstract: 253,034. Morris, T. W. Feb. 12, 1926. Preserving bacon and ham.-In the preservation of bacon and ham, more especially mild bacon, the surface is heated to a sterilizing temperature and impregnated with glycerine, e.g. by immersing the bacon &c. in a bath of hot glycerine. In an example, mild bacon after draining is dipped in and removed as quickly as possible from a bath of glycerine heated to about 212-220‹ F., decomposition of the glycerine being prevented by blowing in steam to keep the air above it moist. The bacon is then drained and cooled. With extra mild bacon, a temperature somewhat higher than 220‹ F. is used in order to harden the surface of the bacon and to strike deeper therein.
Patent GB-983643-A (GB)
Title: Submersible electric motor
IPC: F04D29/58
Filed: 1962-02-02
Abstract: 983,643. Cooling dynamo-electric machines. BORG-WARNER CORPORATION. Feb. 2, 1962 [Feb. 9, 1961], No. 4140/62. Heading H2A. A submersible electric motor comprises a casing housing the stator and the rotor, a chamber within the casing, a filling of cooling and lubricating fluid in the chamber, means for circulating the fluid through the motor and means for directing the fluid to a channel between the outer periphery of the rotor shaft and the rotor. A cooling and lubricating system for a submersible motor, Figs. 3a, 3b, 3c, is driven by a centrifugal impeller 27, Fig. 6. The outlet 29 of the impeller feeds oil into passage 30 in bearing housing 31 and into space 32 formed between casing wall 11 and a heat-resisting laminated plastic tube 35, the space 32 acting as a heat-exchanger. The oil enters chamber 36 via ports 38 and then passes through filter 50 to be pumped up axial channel 40 in shaft 19. The major part of the oil leaves via radical passages 42 and enters chamber 41 where it flows down bearing 47 and by-pass passages 43, 44 to be recirculated by the impeller. The remainder of the oil proceeds up the channel 40 to lubricate intermediate bearing 23, Fig. 3b, by radial passages 51, the bushing guide 58 by radial passages 57, Fig. 3a, and the thrust race bearing 22 by radial passages 65, the channel continuing up shaft to expansion chamber 83. The return flow is via passages 76, 77 into chamber 63 and down the rotor gap 82 and also via two additional longitudinal grooves 80, 81 in shaft 19, the grooves extending the length of the rotor 18 and opening into chamber 41, Fig. 3c. The power supply connection for the motor (Figs. 2 and 4, not shown), is of the conventional gland type. Specification 983,642 is referred to.
Patent GB-1592342-A (GB)
Title: Hydraulic control units
IPC: G05G9/00
Filed: 1978-02-02
Abstract: The hydraulic control block is provided with at least one control lever (2, 2a) for actuating a hydraulic consumer. It has two transmission shafts (11, 12) which are parallel to one another and can be positively rotated in opposite directions, one (12) of these shafts (11, 12) being connected to an electric switching element (16). Furthermore, the control lever (2, 2a) has an actuating tongue (9) which acts on at least one dog (10, 10a, 10b) which is fastened to one of these shafts (11, 12). The control lever serves, for example, as a manual control valve for the admission of fluid to the pressure piston of the working cylinder of a fork-lift truck or a mobile construction machine. It permits proportioned control of the oil delivery rate in a simple manner. <IMAGE>
Patent GB-267100-A (GB)
Title: Electric distant control device
IPC: G08C19/38
Filed: 1927-02-15
Abstract: 267,100. Granat, E., and Compagnie des Forges et AciÚries de la Marine et d'HomÚcourt. March 3, 1926, [Convention date]. Constant speed control systems; hunting- control systems.-For the distant control of a number of electric motors, as in laying guns to follow an aiming-telescope, the distant motors R<2>, R<3>, R<4>, Fig. 1, are of the known kind which follow the angular displacement of brushes 32 over the commutator of a transmitter T<1>. An additional controlling motor R<1>, similar to the distant motors, is coupled to the transmitter, for example mechanically by a differential gear 28, so that initial movement of a handle 31 displaces the brushes of the transmitter through any required angle and the consequent movement of the motor R', with the handle held stationary, carries on the brush rotation in the original direction, thus keeping the distant motors running uniformly and synchronously as long as may be required. The motors are stopped by bringing back the control handle to its original position. In modifications the mechanical differential gear is replaced by arrangements comprising an additional commutator and brushes connected to the transmitter commutator so as to shift the origin of potentials continually. Means may be added whereby the return of the original controlling member is effected by hunting gear when the required laying operations &c. have been completed. Specifications 174,082, 232,571, and 259,187, [Class 40 (i), Electric signalling systems &c.], are referred to.
Patent GB-1115853-A (GB)
Title: Method of making articles of light weight concrete from light weight concrete in a plastic state
IPC: B28B13/04
Filed: 1966-01-31
Abstract: 1,115,853. Gripping and lifting objects. FABRIEK VAN BOUWMATERIALEN LOEVESTEIN N.V. 31 Jan., 1966 [3 Feb., 1965], No. 4263/66. Heading B8H. [Also in Division B5] A device for transferring a block of unset concrete from a mould 2 to a cutting table (not shown) comprises a top 4 with deformable side walls which latter grip the side walls of the concrete block and are pivotally attached to the top 4. To enhance lifting, suction is maintained between the top of the block and the top 4 by exhausting air through a pipe 9. A gauze 7 is stretched between depending side walls 5 over the top surface of the block. The vacuum is broken by opening a valve 10 to atmosphere. In a modification. Fig. 2 (not shown), the top 4 is divided by continuous walls (18) into concentric chambers (15)-(17), each connected separately to a suction pump, the walls sinking into the top of the block as the vacuum is reduced. The vacuum increases towards the centre chamber (15), i.e. from 0À9-0À7 atmospheres. In another embodiment, Fig. 4 (not shown), side walls (31) have a layer of foam to conform to the side walls of the block. The foam may be profiled for better grip (Figs. 6, 7, not shown) or may support a layer of clamping plates (Fig. 5, not shown). In a final embodiment, Fig. 8 (not shown), walls (31<SP>11</SP>) are formed as an air filled box having a flexible inner wall (37).