baber/WOPTO huggingface dataset:
Patent GB-962270-A (GB)
Title: An improved automatic control for clutches
IPC: F16D27/06
Filed: 1961-09-28
Abstract: 962,270. Friction clutches; positive clutches; controlling clutches. H. HURTH, and F. HURTH. Sept. 28, 1961 [Oct. 5, 1960], No. 34838/61. Headings F2C and F2L. A control for friction or dog clutches in change-speed gearing comprises electric switching means responsive to torque transmitted carried on one clutch and operative to disengage either the clutch carrying the switching means, or one of the other clutches, when the transmitted torque reaches a certain value which is less than the maximum torque transmitted. The electric switching means may be a piezo-electric crystal, a carbon-pile capsule, a variable-inductance device or a variable resistor, to effect declutching either directly or indirectly. Direct clutch control may be effected mechanically, electrically or hydraulically. As shown, a driving shaft 10, Fig. 1, transmits torque through a multidisc clutch 19 to a ring 14 when a solenoid 15 therein is energized, an axial projection 20, Fig. 2, of the ring lying between the two arms 32, 33 of a fork fast with a driven pinion 11 and containing two piezo-electric crystals 23, 24 alternatively squeezed by slidable studs 21, 22 engaging the fork arms, according to the direction of drive. The potential of the crystals may either be applied directly to the solenoid 15, or alternatively may be applied to the grid of a triode 44, Fig. 3, in a simple amplifying circuit. In this form, clutch engagement is initiated by manual closure of a switch 36 to energize the solenoid 15 by connecting it across the positive and negative lines shown. As soon as the clutch is engaged and torque is transmitted, one or other of the piezo-electric crystals 23, 24 provides a potential, which is amplified by the triode 44 to close a relay switch 42 in parallel with the manual switch 36, which may now be opened. The clutch remains engaged while it transmits torque, but on cessation of torque transmission, as by engagement of another clutch in associated gearing, the potential of the piezo-electric crystal ceases and the clutch disengages. Alternatively, a transistor circuit may be used. In another form, a variable condenser 50, Fig. 4, subjected to the torque transmitted, is connected in a capacitancemeasuring bridge containing resistors 52, 53 and a comparison condenser 51 to control a servomotor 54 actuating a switch corresponding to the switch 42 of Fig. 3.
Patent GB-155214-A (GB)
Title: Improvements in thermostatic protective apparatus for use with bearings or other parts of a machine
IPC: F16C17/24
Filed: 1920-12-10
Abstract: 155,214. Metropolitan-Vickers Electrical Co., (Assignees of Wensley, R. J.). Dec. 10, 1919, [Convention date]. Thermal switches. - A switch device for use with bearings or other machine parts to stop the machine when its bearings &c. become unduly heated comprises a metal bulb 5, containing a volatile liquid, located in a passage formed in the housing of the bearing, the bulb communicating by means of a tube 6 protected by the housing 7 with a bellows device 16 which, on expansion, operates the switch 23, 29, 30. The bellows and switch parts are contained in a casing supported by a bracket 14. When the bearing becomes overheated, the bellows expand and raise an insulating-rod 21 resting freely thereon until a conducting sleeve 23 on the rod bridges the fixed contacts 29, 30 whereupon the circuit-breaker 31 is tripped, cutting off power to the machine which, in the case described, is an electric motor. When the bearings cool, the power is not restored, the rod 21 remaining in the raised position until depressed by hand.
Patent GB-1045269-A (GB)
Title: Introduction of mercury into electric discharge tubes
Inventor: KLEPP GEORGE FRANCIS
IPC: H01J9/395
Filed: 1962-09-13
Abstract: 1,045,269. Discharge apparatus. STANDARD TELEPHONES & CABLES Ltd. Sept. 6, 1963 [Sept. 13, 1962], No. 34970/62. Heading H1D. Mercury is introduced into a discharge tube from a glass capsule containing a mixture of chemical compounds which will react together to evolve mercury at a temperature below the softening point of the glass of the capsule, whereby heating of the latter causes its rupture by, and the escape of, the contained mercury. A compressed pellet of a mercury compound, a reducing agent, and a moderator-e.g. mercuric oxide, titanium powder, and iron powder-is sealed into the glass capsule under vacuum or in argon. The capsule is mounted in the tube, the latter is sealed off, and the capsule heated either by a tungsten resistance coil (Fig. 1, not shown), or by eddy current heating of metal plates by which the capsule is mounted.
Patent GB-1006404-A (GB)
Title: Chlorinated polyethylene and film made therefrom
IPC: C08L27/00
Filed: 1964-08-26
Abstract: A flexible film of high tensile strength and good low temperature flexibility comprises substantially linear chlorinated polyethylene having a chlorine content of 60 to 75% by weight, an intrinsic viscosity of 0.5 to 3.0 as measured in o-dichlorobenzene at 100 DEG C., and 0% crystallinity, said film being substantially unoriented and substantially free from organic solvent for said chlorinated polyethylene and having a tensile strength of at least 630 kg./cm2. The film may be obtained by chlorinating a linear high density macromolecular polyethylene having a weight average molecular weight of from 1,000,000 to 5,000,000, a crystallinity of at least 75% and a density of from 0.935 to 0.985, said macromolecular polyethylene having been produced by the gas phase polymerization of ethylene below the softening point of the polyethylene and said polyethylene containing dispersed therethrough at least 0.001% by weight of a polymerization catalyst comprising (a) chromium and (b) silica or silica-alumina. The chlorination of the polyethylene may be in two stages, the first stage being carried out in an aqueous slurry, preferably at 60 DEG  to 130 DEG  C. until at least 5 weight per cent of chlorine has been introduced into the polymer, and the second stage at a temperature preferably from 135 DEG  to 150 DEG  C. Alternatively, the second stage may be carried out in two parts, first at a temperature from 135 DEG  to 150 DEG  C. and then at a temperature from 110 DEG  to 120 DEG  C.
Patent GB-322336-A (GB)
Title: Improvements in hose couplings
IPC: F16L37/086
Filed: 1928-11-28
Abstract: 322,336. Morris, C. Nov. 28, 1928. Couplings. disconnectible.-In a coupling for fire hose of the kind described in Specification 1053/77, each of the spring- controlled locking bolts b. Fig. 1, are adapted to he withdrawn by means of a sleeve or collar D fitted on the bolt housing B between the body of the coupling member A and the swivelling knob C of the bolt. The sleeve D is formed flat at the end bearing against the knob and, at the other end, concave at d and convex at d<1> to conform to the convex contour of the coupling mem ber, so that when the collar is rotated the surfaces d<1> ride over the surface of the coupling, Fig. 3, and force back the knob C. In a modi fication as applied to a coupling A<2> for an engine outlet, Fig. 8, wherein the swivelling knob is replaced by a simple release knob C<1>, the rotatable collar is dispensed with and the concave and convex surfaces conforming to the body A<2> are formed on the end of said knob.
Patent GB-756967-A (GB)
Title: Improvements relating to surgical saws
Inventor: WOODHALL HAROLD
IPC: B23D51/10
Filed: 1953-12-16
Abstract: 756,967. Tool handles. ALLEN & HANBURYS, Ltd. Oct. 27, 1954 [Dec. 16, 1953], No. 35034/53. Class 61 A surgical saw comprises a handle 1 having a cylindrical blade holder 4 rotatably mounted therein, the holder 4 being locked in desired angular position by a rod 11 screwed into a bore in the handle and engageable in any one of a series of indentations 10 in the holder. The end 8 of the saw blade is square or rectangular in section being received in a passage 7 of similar shape. The holder 4 is supported in an open-sided chamber in the handle by two pivot screws one of which extends into the passage 7 to engage the end of the blade 8.
Patent GB-813797-A (GB)
Title: Improvements in or relating to the polymerisation of ethylene
IPC: C08F10/00
Filed: 1956-11-16
Abstract: Catalysts for use in polymerizing ethylene are obtained by heating aluminium with titanium tetrachloride in the absence of ethylene, other polymerizable hydrocarbons and organic compounds which would react with the catalysts or components thereof.  Pure aluminium is preferably used, but alloys with copper, nickel and chromium are applicable.  Catalyst preparation may be at temperatures up to 300 DEG  C., optionally in the presence of mercuric chloride as activator, and desirable molar ratios of components are given. Hydrocarbon diluents which may be present during the catalyst preparation are hexane, heptane, decahydronaphthalene, cyclohexane, cyclohexene and benzene.  Catalyst residues may subsequently be destroyed and/or removed with methanolic hydrochloric acid, methanol and/or solvents such as cyclohexane.ALSO:Polyethylene is obtained by batchwise or continuous polymerization of ethylene using a preformed catalyst made by heating aluminium with titanium tetrachloride in the absence of ethylene, other polymerizable hydrocarbons and organic compounds which would react with the catalyst or its components.  The aluminium is preferably in the pure state, but alloys with copper, nickel and chromium may be used; technical grade ethylene may be polymerized.  Catalyst preparation may be at temperatures up to 300 DEG  C., optionally in the presence of mercuric chloride as activator, and various molar ratios of components are given. Hydrocarbon diluents, preferably purified (see Example V), may be present in the preparation in the catalyst and/or during the polymerization, and specified are hexane, heptane, decahydronaphthalene, cyclohexane, cyclohexene and benzene.  The polymerization, which is desirably stopped when the concentration of polymer in diluent is between 10 and 45 per cent, may alternatively be in bulk (see Example VII).  The solid, linear polymers obtained may be purified with methanolic hydrochloric acid, methanol, the use of solvents such as cyclohexane, or a combination of these methods. In examples, the intermittent addition of ethylene is described and it is stated that molten polymer may be drawn into translucent filaments (Example VI).  The properties of a polymer containing carbon black and Sudan black are described.
Patent GB-522204-A (GB)
Title: Process for rendering textiles, paper, leather, furs and the like water repellent
IPC: D06M13/13
Filed: 1938-12-02
Abstract: 522,204. Waterproofing. DEUTSCHE HYDRIEHWERKE AKT.-GES. Dec.-2, 1938, No. 35211. Convention date, Dec. 4, 1937. [Class 140] [Also in Group IV] Textiles such as wool, cotton, silk, rayon staple fibre and artificial silk, paper, cellulose foils, leather and furs are rendered water-repellent by treatment with a ketene containing at least 6 carbon atoms in the molecule and then heating for example at a temperature of 110-120‹C. The ketenes may be made by the process of Specification 522,033, [Group IV], and include butyl-, capryl-, lauryl-, and cetylketene, and ketenes derived from cocoanut oil fatty acids; montanic acid, naphthenic acids, nuclear-alkylated' aryl fatty acids, polybasic acids such as adipic acid, sebacic acid and cyclohexane-diacetic acid. They may contain hetero atoms, e.g., oxygen and sulphur. The ketenes are applied in solution in organic solvents, e.g., benzine, carbon disulphide and carbon tetrachloride.
Patent GB-1142255-A (GB)
Title: Welding electrode for the manufacture of casings resistant to wear and corrosion
IPC: B23K35/32
Filed: 1967-08-01
Abstract: 1,142,255. Welding by fusion. GEBR. BÍHLER & CO. A.G. 1 Aug., 1967 [1 Aug., 1966], No. 35250/67. Heading B3R. [Also in Division C7] A welding electrode for producing cladding or sheathing resistant to wear and corrosion is composed of a sintered pulverulent mixture consisting, by weight of The nickel alloy may also contain Cu 0À3-6%.
Patent GB-1535534-A (GB)
Title: Device for sorting transporting and depositing yarn bobbins
IPC: B65G47/52
Filed: 1976-08-25
Abstract: 1535534 Sorting and transporting yarn bobbins ELITEX 25 Aug 1976 [22 Sept 1975] 35283/76 Heading DIF A device for sorting, depositing and transporting yarn bobbins from textile machines comprises a wheeled frame mounting a sloping guide for receiving the bobbins, a bobbin sorter below the guide for receiving bobbins from the guide, a bobbin feeder for feeding sorted bobbins from the sorter to a conveyor, and a removable bobbin carrier below the conveyor. Device 6, Fig. 2, is rolled on tracks 4 to stop at open end spinner 1. Packages 11 carried on conveyor 2 above the spinner are delivered onto inclined platform 16 of the device and against edge 17 and slide, Fig. 5, onto edge 20. Undersized packages, of wound thickness less than adjustable distance X, are directed into magazine 22. Correctly sized packages run against stop 24, which is withdrawn at the correct time to allow a package to run onto pins 33 from which it is removed, Fig. 8, by a pulling element extendable from feeder conveyor 36, and carried up platform 49. The package is raised on pivoting arms 47 to a gripper 57 which has jaws 65, Fig. 10, extendable to grip the package core. A number of grippers are mounted on a chain 51, Fig. 2, which runs about pulleys 52-56 and above rows of mandrels 10, Fig. 3, carried by wheeled trolleys 7 supported on device 6. Above each mandrel 10 is located a release element 60, Fig. 10, which is pivoted by the advancing gripper and pivots gripper arm 70 downwards to release jaws 65 so that the package drops onto a mandrel 10. When a layer of packages has been dropped, one on each mandrel, on arm 98, Fig. 18, is extended to lower an arm 79 on one of a number of reverse elements located one behind each gripper on chain 51. Arm 79 in its lowered, dashed-line position, serves to reset the release elements 60, and another layer of packages is dropped. Means are provided to initially lower arms 70 on the grippers if they do not support packages.
Patent GB-1405111-A (GB)
Title: Piezo-resistive strain gauges
IPC: G01L9/04
Filed: 1972-07-28
Abstract: 1405111 Strain gauges BAILEY METER CO 28 July 1972 [3 Aug 1971] 35403/72 Heading G1N [Also in Division H1] A Piezo-electric strain gauge comprises a silicon diaphragm on which strain gauge resistance elements are formed by diffusion by a dopant such as boron, each element R1, R2, R3, R4, being formed as elongate strips parallel to the 110 axis of the diaphragm. As shown the elements are inter-connected so as to provide a bridge arrangement, with terminal areas T1, T2, T3, T4. A number of terminals T1a, T1b, T1 may be provided at one inter-connection to allow adjustment at initial setting up. The elements are arranged so that two are in tension and two in compression. The diaphragm may be mounted on a support as disclosed in Specification 1404016. U.S.A. Specification 3537319 is referred to.
Patent GB-155543-A (GB)
Title: Improvements in apparatus for throwing into and out of action the wheels of a vehicle having both wheels and endless tracks
IPC: B62D55/02
Filed: 1919-12-08
Abstract: 155,543. Compagnie des Forges et AciÚries de la Marine et d'Homecourt. Oct. 19, 1918, [Convention date]. Springs, arrangement of; suspending and mounting bodies; adjusting height of body.-In an endless-track vehicle provided with wheels which may be lowered so as to hold the track clear of the surface of a road, the wheels may be adjusted as required in a longitudinal vertical plane by carrying them on levers, or on a cranked axle, or on leaf springs with vertically adjustable ends. Each of the rear wheels of the tractor shown in Fig. 1 is connected by a leaf spring 6 to a lever 3 hinged at one end 2 to the main frame and having at the other end a pin 9 adapted to engage either of two holes 11 in the frame so that the lever may be fixed in its lowest position with the track 1 clear of the ground, or may be held in its raised position. The front wheels are carried on levers which are fixed in their lowest position by blocks, engaging between brackets secured to the main frame. The vehicle is run up on to wedges when it is desired to adjust the wheels. In the construction shown in Fig. 2, the axles 12 are carried by leaf springs 16 having one end 17 pivoted to the main frame, while the other end 18 is adjustable vertically by screw-and-nut gearing. In a modification, both ends of the spring are adjustable by screw gearing. In another construction, the wheels are carried on the cranked ends of an axle which may be adjusted through half a revolution to raise or lower the wheels.
Patent GB-1072126-A (GB)
Title: Improvements in surplus thread removing apparatus in sewing machines
IPC: D05B65/06
Filed: 1964-08-31
Abstract: 1,072,126. Sewing machines. W. G. LEININGER KNITTING CO. Inc. Aug. 31, 1964 [Sept. 3, 1963], No. 35573/64. Heading DIG. A sewing machine has a thread chain cutting unit comprising a horizontal blade so disposed beyond the stitching point that work is contactingly moved therealong, and means for effecting operation of said unit. A work plate 11 is notched to accommodate a throat plate 7 and is offset intermediately to provide a higher front work-supporting portion 20 and a lower rear portion 22 pivoted to a fired bracket 24. A thread-cutting unit 25, dispersed above portion 22 and substantially co-planer with portion 20, comprises a fixed upper blade 32 and a movable lower blade 36, the blades being respectively formed with complementary teeth 33 and 37 positioned rearwardly of the throat plate 7. A pair of leaf springs 40, 41 are secured by screws 42 to the lower surface of blade 32, a rib 39 on spring 40 engaging a groove 38 in the lower surface of blade 36 to bias the latter against blade 32. A notch 36c in blade 36 is engaged by the front end 26a of a lever 26 pivoted intermediately at 44 to a plate 43 fixed by screws 45 to bracket 24. A cover plate C is fixed by screws S to plate 43 and is coplaner with blade 32. The rear end of plate 43 is formed with a depending boss 46 journalling a pin 49 which is coupled by a shaft 28 to a driving motor and is formed with a circular flange (48) journalled in plate 43. A pin (52), carried eccentrically by flange (48), is embraced by a longitudinal slot formed in the rear end of lever 26. Rotation of shaft 28 thereby results in oscillation of the lower blade 36. A trough-shaped suction nozzle 30, disposed beneath the teeth 33, 37, is formed by cutting away the upper part of the front end of a tube 30a which is supported by a bracket B and is attached at its rear end to a suction hose 31. Suction in nozzle 30 draws the thread chain between the teeth 33, 37 and conveys the severed particles to the hose 31.
Patent GB-1425696-A (GB)
Title: Textile fibre combing
IPC: D01G19/00
Filed: 1974-08-13
Abstract: 1425696 Combing machines SOUTH AFRICAN INVENTIONS DEVELOPMENT CORP 13 Aug 1974 [14 Aug 1973] 35635/74 Heading DIN In a fibre combing process and apparatus a sliver is fed to a combing position, the free end is clamped and middle combing is performed adjacent the clamped end, the clamp is then released and the sliver end fringe combed, finally a section of the fibres adjacent and following the middle-combed zone is combed and the fibres drawn off. An endless track 3 carries comb elements 15, 16 which also serve to clamp the sliver drawn off from creels 13 during fringe combing by comb 9. Prior to the fringe combing a belt and pulley arrangement 8 draws the fibres through comb elements 15, 16 to perform the middle combing. Fibres are finally drawn off by belts 10 which the comb elements perform the final combing of the trailing fibres. At the end of the cycle lifting knives 11 remove the sliver from the comb pins.
Patent GB-1347057-A (GB)
Title: Press for a deformable bag
IPC: A61M5/148
Filed: 1971-07-29
Abstract: 1347057 Press for a blood bag LABAZ 29 July 1971 [3 Aug 1970] 35691/71 Heading B5F [Also in Division A5] A press for compressing a blood bag 50 to assist blood transfusion or separation of blood components comprises a pair of hinged flaps 10, 11 which can be urged together by a screw 28 under control means adapted to make a determined pressure threshold or level perceptible to an operator. The control means may comprise a precalibrated spring 32 which bears against a blind recess in the screw 28 and a plate 35. The latter is provided with a boss 36 or recess for engaging with a recess 37 or boss in the flap 11. Rotation of the screw 28 through a threaded bush 25 clamped on a U bridge 20 pivoted on the flap 10 is readily effected to compress the bag 50 until a member on the rod 28 engages a member on the plate 35 whereupon the increased effort required to rotate the screw 28 and the plate 35 is perceived by the operator. The members may comprise a bent finger 40 and a pin 41 or complimentary projections and depressions. The spring 32 is exchanged for another when a different pressure threshold is to be detected. Alternatively the control means may comprise an aneroid capsule (60, Fig. 4) carried on the inner face of the flap 11 and connected to a pressure gauge (61) carried on the outer face of the flap 11. The latter is formed of transparent synthetic material, e.g. acrylic and the flap 10 may be formed of metal or transparent synthetic material. The hinge 12 comprises a metal plate provided with a free edge 15 rolled to a crook shape. A stud 18 on the flap 10 passes through a bag hole to locate the bag within the press. For blood transfusion the press is positioned as shown. For separation of blood components, an apertured extension 16 of the flap 10 is bolted vertically in a slotted base (53, Fig. 3).
Patent GB-337626-A (GB)
Title: Improvements in or relating to astragals or glazing bars
IPC: E04D3/08
Filed: 1929-11-22
Abstract: 337,626. Price, R. S. Nov. 22, 1929. Glazing windows. - An astragal comprises a metal bar of flanged section to the flange or flanges of which are applied strips of bitumenized felt or the like, longitudinally fluted, corrugated, or channelled so as to form a resilient support for the glass panes. In the form shown, the astragal comprises a metal core 1, 1<1> sheathed by an inner wrapper 2 of bitumenized fabric. The cross-member 1 of the core has an outer wrapper 4 of bitumenized fabric having corrugations 5 on which the panes of glass 7 rest. The corrugations 5 are backed by strips 8 of fabric or of metal. The vertical member 1<1> of the core has a cap wrapper 12 also of bitumenized fabric. A flashing strip 10 of lead or the like is of T-section and is so disposed that the two arms of the cross-member thereof are overlapped by the outer wrappers 4, 12. Rivets 15 may be provided to hold the flashing strips in position, or alternatively they may be held by spaced clips which overlap the upper arm of the cross-piece. The clips 13 and the cap 12 may be secured to the member 1<1> by dimpling them as at 14. In a modification, Fig. 1 (not shown), the corrugations 5 of the outer wrapper 4 are extended and folded around the edges of the panes. In this construction, the overturned portion is secured to the upright member 1<1> by putty. At the ends of the astragal, the wrappers are overturned to form a seal which may be completed by shoes of copper, bitumenized fabric, vulcanite, or similar materials. In a further modification, the corrugations 5 are formed by supporting cords of fabric or the like disposed longitudinally of the astragal. The grooves 16 formed by the corrugations serve to carry away drainage water which escapes 'through openings 17 provided between the undersides of the panes and the strips 5.