baber/WOPTO huggingface dataset:
Patent GB-1196793-A (GB)
Title: Method and Apparatus for Imparting a Twist to One or More Yarns and Yarn Construction Made Thereby.
IPC: D01H1/115
Filed: 1967-07-10
Abstract: 1,196,793. Spinning yarns; twist tubes. NUVAL CO. 10 July, 1967 [15 July, 1966; 9 June, 1967], No 31729/67. Headings DID, D1F and D1W. A method of imparting twist to one or more yarns comprises directing pressure fluid into an elongate passageway 36 along axes 40, 41, 42 which intersect the passageway at different non-radial relations thereto to create a vortical fluid motion, feeding a yarn 17 longitudinally into the passageway 36 and withdrawing the yarn from the passageway. The fluid is preferably directed substantially in the direction of yarn movement to tension the yarn during twisting by the fluid motion. A heater 53 may be disposed ahead of the fluid twister 13 to heat-set tihe twisted yarn. In a preferred embodiment, the yarn is withdrawn from the passageway 36 in a direction substantially transverse thereto. A second yarn 18 may be fed to the fluid twister 13 with the yarn 17, but at a greater speed so that the yarn 18 is wrapped round the yarn 17. The axes 40, 41, 42 are connected to a source of pressure fluid by means of a pipe 50 via an annular groove in the surface of a fluid twister block 30 and into which groove the axes open. The axes are directed obliquely toward the yarn passageway 36. A plied yarn construction, made by the above method comprises a pair of yarns, each comprising a plurality of constituent elements, the yarns being held together in one region by 'S' twist, and in another region by 'Z' twist with a region of zero twist separating the 'S' and 'Z' twist regions, the yarns being held together in the zero twist region by an intermeshing of the constituent elements of the two yarns. Preferably the yarn is formed with stubs.
Patent GB-225079-A (GB)
Title: Improvements in or relating to journal bearings
IPC: F16C33/24
Filed: 1923-12-18
Abstract: 225,079. Wilson, T. H. Dec. 18, 1923. No Patent granted (Sealing fee not paid). Brasses.-A composite bearing comprises a shell A of gun-metal or similar metal and a phosphor bronze liner A<1> cast together in an iron or steel mould. The liner A<1> forms only a part of the bearing surface the other part being formed by the shell A. The bearing may be coated with white metal.
Patent GB-230561-A (GB)
Title: Improvements in muffle furnaces
IPC: F27B5/00
Filed: 1923-12-19
Abstract: 230,561. August's Muffle Furnaces, Ltd., and Coggon, H. F. Dec. 19, 1923. Muffle furnaces.-The side flues 4 which pass under the floor 3 of the muffle and lead into vertical uptake flues 5 are extended at 10 to the outer walls to form an inspection hole or opening in order that a tool may be inserted to remove slag that accumulates at the base of the vertical flues. The openings are closed by removable plugs 12. The upper flues 6 may also be extended to the front wall in similar manner.
Patent GB-988340-A (GB)
Title: Continuous vulcanizing apparatus
IPC: B29C48/00
Filed: 1963-08-13
Abstract: A continuous vulcanizing system comprises an elongated vulcanizing chamber through which elongated vulcanizable material passes, which chamber has a first portion in the shape of a half-catenary having its entering end raised above its exit end, the subsequent portion of the vulcanizing chamber having its lower inner surface merging smoothly with that of the exit end of the half-catenary, means to subject the material in the chamber to vulcanizing heat, means for maintaining the elongated material under controlled tension in said half-catenary so as to hold the material in substantially catenary form free from contact with the inner wall of the half-catenary part of the vulcanizing chamber, and means for detecting changes in the path of the material in the half-catenary and for controlling the means for maintaining the elongated material under tension.
Patent GB-702382-A (GB)
Title: Improvements in or relating to a device for use in measuring viscosity
Inventor: BOYLE ARCHIBALD RAYMOND
IPC: G01N11/10
Filed: 1949-12-13
Abstract: 702,382. Viscosimeters. DOBBIE McINNES, Ltd. Dec. 13, 1950 [Dec. 13, 1949], No. 31907/49. Class 106 (2) [Also in Group XXVI] A device for use in measuring viscosity of a resistant liquid of other fluent material in a container 7 includes a drag member 4, 8 fulcrummed on a wall portion 6 thereof, and a flexible cover, e.g. a bellows cap 10, sealing the fulcrum against the fluent material while permitting bodily movement of the drag member by driving means, e.g. a motor rotating a shaft 1. A cylinder 16 may surround the drag member.
Patent GB-603128-A (GB)
Title: Electric motor
IPC: H02K57/00
Filed: 1945-11-27
Abstract: 603,128. Electric rotors. BRYAN, J. C. Nov. 27, 1945, No. 32030. [Glass 35] A motor armature comprises a plurality of bobbin-type coils coaxial with a shaft which carries groups of segments co-operating with a stator comprising helically-arranged magnetic bars, the segments in a group being angularly staggered. In the form shown, four coils 7, each with a group of plates 5a, 5b, 5c at each of its ends are connected to a radial type commutator so that they are energized in sequence and a condenser is connected across each winding as it is de-energized, the condenser, brushes and commutator being in the insulating cover 2 which carries the terminals 14, 15. Each of segments 5a, 5b, 5c has four radially extending projections but these are of unequal size in the circumferential direction as indicated in Fig. 2 (not shown), and these projections co-operate with the helicallyarranged stator bars 1a. All the corresponding segments on the left of a coil are in alignment, and all those on the right likewise, but left and right-hand segments of a group are staggered.
Patent GB-162032-A (GB)
Title: A machine for breaking concrete and other conglomerate and mineral beds and deposits
IPC: E01C23/12
Filed: 1919-12-23
Abstract: 162,032. Hack, E. B., and Burt, G. M. Dec. 23, 1919. Percussive channelling-drills.-In a machine for grooving concrete, mineral, and conglomerate beds comprising a frame movable by ratchet and pawl mechanism over the surface operated on and adapted to be tilted by screws acting on one axle, the frame carrying a series of chisels or other tools which are reciprocated in guides by cams or fluid pressure, the ratchet and pawl mechanism is operated by variable eccentrics, the tilting screws are operated simultaneously and means are provided for holding the tools out of operation. The frame 1 is mounted on front wheels 2 and rear wheels 3. The front wheels are each mounted on a short axle carried by a bracket provided with a stem 41, the stems being connected by levers 42 and a rod and being adjusted for steering by means of a hand-wheel 48, pulley 45 and a rope. The rear wheels are supported in brackets 23, Fig. 5, with threaded stems 24 engaged by screws 25 which are simultaneously rotated from a hand-wheel 30 to lift or lower the rear end of the frame. At the rear end of the frame are a series of stems 6 sliding in guides 7, 8 and carrying tools 5. The stems are connected in pairs by tappets 9 which are actuated by cams 10 to reciprocate the stems; cushioning springs 19 surround the stems. The tappets 9 have balls or rollers on their under-surface, are in halves so as to be reversible, and have lugs 14 adapted to' be engaged by pawls 15 which are then raised by screws 16 so as to put the tappets out of the paths of the cams. The frame 1 is moved by means of ratchet wheels 31 mounted on the axle of the rear wheels, each being engaged by a set of pawls 32 of different lengths. The sets of pawls are oscillated each by a connecting rod 34 connected to a shaft 37 by a variable-throw eccentric 36<a>, Fig. 8, comprising a block 35 slidably adjustable in a slot 36 by means of a screw 35a. The cams 10 and the shaft 37 are driven from an engine 49 through independent clutches. In a modification, the tool stems are reciprocated by fluid-pressure engines.
Patent GB-268020-A (GB)
Title: Improvements relating to windscreen cleaners
IPC: B60S1/06
Filed: 1925-12-21
Abstract: 268,020. Vokes, C., G. Dec. 21, 1925. Vacuum engines; compressed - air and suction supply for interconvertible motor. - A wind - screen cleaner operated by fluid pressure is provided with connections to two alternative sources of power. In the construction shown in Fig. 1, in which a supercharging device 5 is provided for the engine of the vehicle, the cleaner 1 operated by suction is provided with a connection 2 branching into portions 2a, 2b leading respectively, to the intake manifold 3 and the suction side 4 of the supercharger 5. Each branch has a valve 6 comprising, as shown in Fig. 2, a ball 7 held in its seating by means such as a very light spring 8. The arrangement is such that the source where the suction is greater will tend to open its own branch and close the other. In the construction shown in Fig. 3 the cleaner is adapted to be operated by suction or pressure, the necessary connections being made by a manually-operated slide 9 which in the position shown connects the fluid-pressure motor of the cleaner with a source of pressure 11. On moving the slide to its second position, determined by means of the notch 13, the motor is connected with a source of suction 10. The intermediate connections are such that the direction of movement of the piston of the motor is unaffected by the choice of either suction or pressure as the source of power.
Patent GB-790945-A (GB)
Title: Device for comparing the intensities of two beams of radiation
IPC: G01J3/42
Filed: 1955-11-11
Abstract: 790,945. Photometric analyes. PERKINELMER CORPORATION. Nov. 11, 1955 [Nov. 12, 1954], No. 32261/55. Class 40 (3). In a device for comparing the intensities of two beams of radiation alternately switched along a single path to a detector at a first frequency and which before reaching the detector are modulated at a second frequency, the two frequencies are in the ratio of 3 : 2 and the periods of interruption at the lower frequency are in the ratio 2: 1. The voltage from the detector is applied to a demodulator the output of which contains a D.C. component proportional to the beam intensity difference. In the apparatus shown, beams of radiation (RB and SB) from a source S pass through absorption chambers 14, 21 containing test and standard materials respectively and are alternately at a frequency 3f directed by a rotary chopper 20 on to the entrance slit 19 of a spectrometer where the beams are dispersed by a prism 24 before reflection on to orthogonal mirrors 27, 28. Between this prism is disposed another chopper operating a frequency 2f and so designed that the beams are cut off for two thirds of each cycle. In this way, the output voltage of the detector has a component of frequency f and this voltage is fed together with a control voltage of frequency f, to a phase-sensitive full-wave rectifier so that the output of the latter contains a D.C. component proportional to the beam intensity difference. The output of the rectifier feeds a servomotor 36 to adjust an attenuator wedge 37 in the path of beam RB until the beam intensities are equalized, the adjustment to the wedge being recorded in an instrument 38 as a measure of the difference in the beam intensities. Other chopper relationships are suggested.
Patent GB-1221768-A (GB)
Title: Hosiery measuring and pairing apparatus
Inventor: BOBBITT LEONARD EARL
IPC: D06H3/16
Filed: 1969-06-26
Abstract: 1,221,768. Measuring and sorting stockings. L. E. BOBBITT. 26 June, 1969, No. 32294/69. Heading D1S. [Also in Division Gl] An apparatus for sorting stockings according to length comprises a measuring table 10 having measuring means comprising a mark 12 and a series of switches 16, depression of one of which causes a corresponding storage tray 24 to be moved from a storage position to an extended position. Each tray is moved by one or two double acting piston-in-cylinder arrangements (Fig. 4, not shown). A control circuit (Fig. 3, not shown) actuated by a switch 16 causes a tray to be extended, held in the extended position for a predetermined time timed by timer 36 and then returned to the closed position. The control circuit also includes means to count the number of times each tray is operated and light a corresponding lamp 18 when the tray has been operated a given number of times.
Patent GB-943496-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: DONGUY RENE
IPC: G21C17/04
Filed: 1960-09-20
Abstract: 943,496. Nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 20, 1960 [Oct. 3, 1959], No. 32315/60. Drawings to Specification. Heading G6C. In a system for monitoring the coolant of a nuclear reactor wherein the sampling pipes for the coolant are arranged in a matrix of rows and columns, the sampling pipes are provided with pressure reducing means to equalise the flow of coolant through each sampling pipe. The pressure reducing means are standard and are applied in integral multiples to the pipes; one form comprises a constriction produced by placing a pipe between two jaws the closing of which is limited by a block of predetermined thickness placed between the jaws, alternate constrictions being in orthogonal planes; another form comprises a sleeve introduced into the pipe. The pressure reducing means should be spaced apart by at least eight times the diameter of the pipe.
Patent GB-1532861-A (GB)
Title: Container washing apparatus
IPC: B08B9/34
Filed: 1976-08-03
Abstract: 1532861 Cleaning containers BARRYWEHMILLER CO 3 Aug 1976 [18 Aug 1975] 32317/76 Heading B8T In a bottle-washing machine, washing solution is circulated from a washing compartment 24 via a filter 87 (Fig. 3), through a pipeline 38 and a pump 34 to nozzles 60A (Fig. 3) directing a jet over bottles C to remove labels therefrom, and back through the filter 87 to the pump 34. Some of the solution is diverted via pipe 41 between the pump and the nozzles to flush the filter. Solution is also circulated by a suction pump through jets to flush a collecting trough 30 and transport the labels collected to a separator. Bottles C are transported through the machine by carriers on an endless chain conveyer 17 which is guided to form a loop in the washing compartment, the nozzles 60A being positioned above the collecting trough 30, which is formed by the bottom of the loop of the conveyer guide 58.
Patent GB-798004-A (GB)
Title: Polybenzimidazoles and method of preparing the same
IPC: C08G73/18
Filed: 1956-10-23
Abstract: Polybenzimidazoles are made by condensing a bis-diaminophenyl compound with an equimolecular quantity of a dicarboxylic acid at a temperature of from 100 DEG  to 350 DEG  C. in the absence of oxygen. Preferred bis-diaminophenyl compounds are of the general formula <FORM:0798004/IV (a)/1> where R is a carbon to carbon bond or a divalent hydrocarbon radical, e.g. 1,2-bis(3,4-diaminophenyl) ethane and 2,2-bis-(3,4-diaminophenyl) propane.  Preferred dicarboxylic acids are those of the formula HOOC-R1-COOH, where R1 is a chain of methylene groups, e.g. adipic and sebacic acids.  The examples describe the preparation of polybenzimidazoles form (1) sebacic acid and 3,31-diaminobenzidine, (2) sebacic acid and 1,2-bis-(3,4-diaminophenyl) ethane, (3) adipic acid and 2,2-bis-(3,4-diaminophenyl) propane and (4) sebacic acid and 2,2-bis-(3,4-diaminophenyl) propane.  The polybenzimidazoles may be modified by reaction with diamines.  The products may be used as fibres, coatings and mouldings.  Specifications 461,236 and 461,237, [both in Group IV], are referred to.
Patent GB-815596-A (GB)
Title: Porous metal wall construction and method of manufacture
Inventor: JR HARRY LINDSAY WHEELER
IPC: B23K31/02
Filed: 1955-11-11
Abstract: 815,596. Wire fabrics ; filters. CALIFORNIA INSTITUTE RESEARCH FOUNDATION. Nov. 11, 1955, No. 32359/55. Classes 45 and 46. [Also in Groups XII, XXII and XXVI] A wire fabric which may subsequently be used to form the porous wall of a filter, turbine blade or rocket combustion chamber is formed of layers of parallel wires 1, Fig. 1, with the wires of adjacent layers crossing tc provide pores 3. The wires are of steel, copper, titanium, molybdenum or of copper-plated steel and are wound initially on a mandrel and sintered together at their crossing points. The mandrel is then removed. The porosity may be predetermined and may vary through the wall thickness, Fig. 6, and the pores 3 may run substantially normal to the wall surface or be inclined thereto or they may form labyrinth channels. The wound structure may be of cylindrical or conical hollow form or a cylindrical structure may be cut longitudinally and pressed into a flat sheet.
Patent GB-809972-A (GB)
Title: Improvements relating to drive mechanism for dressing units for forming multiple-ribbed grinding wheels
IPC: B24B53/065
Filed: 1956-10-24
Abstract: 809,972. Trueing grinding wheels. CIMATOOL CORPORATION. Oct. 24, 1956 [Oct. 25, 1955], No. 32409 /56. Class 60. A drive mechanism for effecting the lead movement of a dressing cutter 35, Fig. 2, for forming a multiple-ribbed grinding wheel 12 comprises a rotatably-driven lead screw 50, Fig. 3, which is carried by either the support member or housing 15 for the dressing cutter or a base member 30 and co-operates with a lead nut 51 restrained against axial movement by the other of these members, and means for adjustably selecting the amount of relative feed movement produced per unit rotation of the screw over a given range of adjustment. The dressing cutter 35 is carried by a support 16 in the housing 15 for reciprocation in a direction transverse to the axis of the grinding wheel while the housing is itself traversed parallel to such axis on rollers 31, 32, Fig. 5, by rotation of the screw 50. The screw is driven from a reversible electric motor through a worm 40 mounted in the housing 15 and geared with a worm wheel 41 on a shaft 42, which carries a cam 45 arranged to reciprocate the dressing cutter transversely in the housing and rotates the screw through change gearing 52, 53, 56, 57; the motor is reversed at each end of the traverse of the housing by adjustable contacts 26, 27 on the latter actuating limit switches 22, 24. The lead screw 50 is supported in the housing by bearings 60, 61 and has partspherical ends 64, 66 co-operating respectively with a fixed contact 65 and an adjustable contact 67 for varying the amount of lost motion between the screw and the housing when the drive reverses so that the cam makes one complete revolution before the drive from the screw is taken up and the timing between the in and out movements of the tool and the lead movement is maintained. Plungers 75, 76, Fig. 5, movable with the housing, are spring- urged into contact with members 79, 83 to provide sufficient friction drag to maintain the driving contacts 64, 65, 66, 67 firmly in engagement and to restrain the housing stationary during lost motion as the housing is reversed. The nut 51, which is centralised and maintained in firm engagement with the screw 50 by an auxiliary spring-urged nut 80, is held against axial movement while free for rotation by providing it with projections 85, Fig. 8, contacting stops 84 on a nut retainer 81 mounted on the base 30. The rotation of the nut is restricted by means for varying the amount of movement of the housing 15 per revolution of the screw comprising a spherical projection 92 on the nut engaging a diametric groove 91 in a disc 90 which is adjustably-rotatable in the housing 15 by means of spring-urged plungers, Fig. 6 (not shown), engaging with cut-out portions in the disc to set the angular position of the groove 91 to the desired adjustment. By suitable adjustment, tapered grinding wheels may be trued with multiple ribs of increasing diameter. Specification 780,090 is referred to.
Patent GB-833820-A (GB)
Title: Improvements in or relating to the preparation of pyrrolidyl esters and quaternary compounds thereof
Inventor: MEHTA MINOO DOSSABHOY
Filed: 1957-10-17
Abstract: Compounds of formula <FORM:0833820/IV (b)/1> wherein Ph represents phenyl and R is C1-4 alkyl or allyl, are prepared by reacting a 1-alkyl-2-hydroxymethylpyrrolidine of formula <FORM:0833820/IV (b)/2> with an acid halide of formula <FORM:0833820/IV (b)/3> where X is chlorine or bromine, to give a compound of formula <FORM:0833820/IV (b)/4> which is then converted to the product (I) by treatment with water and a base.  The compounds (I) in which R is C2-4 alkyl or allyl and salts thereof are claimed per se.  The treatments with water and the base may be simultaneous or successive.  The first stage of the reaction may be effected in a solvent, e.g. butanone. The products (I) may be reacted with an ester R1Z to form a quaternary salt of formula <FORM:0833820/IV (b)/5> where R1 is alkyl or aralkyl and Z is a halogen, alkyl sulphate or aryl sulphonate radical.  The anion Z may be exchanged for other anions, e.g. by reaction with the silver salt of an appropriate inorganic or organic acid.  Optically active products may be resolved into their isomers. Starting materials prepared are 1-methyl-2-hydroxymethylpyrrolidine by the formaldehyde/formic acid methylation of 2-hydroxymethylpyrrolidone obtained by LiAlH4 reduction of butyl pyroglutamate; 1-ethyl-, 1-n-propyl- and 1 - n - butyl - 2 - hydroxymethylpyrrolidine by the LiAlH4 reduction of (1-acetyl-2-pyrrolidyl)-methyl acetate, 1-n-propionyl-2-pyrrolidyl)-methyl propionate and (1-butyryl-2-pyrrolidyl)-methyl butyrate respectively, these being obtained by the action of acetic, propionic or butyric anhydride on 2-hydroxymethylpyrrolidine; 1-isopropyl and 1 - allyl - 2 - hydroxymethylpyrrolidine by the LiAlH4 reduction of butyl 1-isopropyl- and 1-allyl-pyroglutamate respectively, these being obtained by the action of isopropyl iodide or allyl bromide on the potassium derivative of butyl pyroglutamate.  The Provisional Specification refers to compounds corresponding to I, III and IV, in which one phenyl group is replaced by cyclohexyl.  Specification 820,503 is referred to.
Patent GB-618390-A (GB)
Title: Improvements in or relating to sulphur containing dicarboxylic acids and method of preparing same
Filed: 1946-11-01
Abstract: Sulphur-containing dicarboxylic acids of the formula <FORM:0618390/IV(b)/1> where R is a bivalent saturated aliphatic hydrocarbon radical are prepared by reacting a mercapto carboxylic acid of the formula <FORM:0618390/IV(b)/2> with a beta-propiolactone. Reaction may take place in the presence or absence of an organic solvent or preferably by adding the lactone to a solution of the mercapto carboxylic acid in an aqueous solution of an inorganic base such as an alkali metal hydroxide or ammonium hydroxide.  The resultant solution is acidified to liberate the sulphur containing dicarboxylic acid. In examples (1) to (4) thiohydracrylic acid reacts with b -propiolactone to form b -thio-dipropionic acid.  Other thio-dicarboxylic acids may be prepared by using thio-glycollic acid, thiolactic acid, a -mercapto-butyric acid, a -mercapto-isobutyric acid and a -mercapto-lauric acid.  The Specification as open to inspection under Sect. 91 comprises also the use of mercapto carboxylic acids in which R is an aromatic or saturated aliphatic radical, e.g. thioricinoleic acid, thiosalicylic acid and o-mercapto-a -toluic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-730707-A (GB)
Title: Wall structure
IPC: E04C2/32
Filed: 1953-11-24
Abstract: 730,707. Metal walls. ROBERTSON THAIN, Ltd. (Robertson Co., H. H.). Nov. 24, 1953, No. 32638/53. Class 20 (4). Sheet-metal walling is made up of panels erected side-by-side, each panel unit comprising an inner sheet 12 secured to a building framework with side edge lips 16, 18 interengaging those of adjacent sheets, insulation material 40 adjacent the sheet, a number of transverse sub-girts 24 welded to the inner sheet lips, and an outer sheet 14 fastened to the subgirts. To prevent deformation of the sub-girts when drilled for reception of self-tapping screws  for this purpose, stiffening members 30 are interposed between the inner sheet and the sub-girt and comprise free arms 36, 38, and a lip 32 which is hooked over the sub-girt.