baber/WOPTO huggingface dataset:
Patent GB-931848-A (GB)
Title: Improvements in and relating to automatic slack adjusters for use with brake assemblies
Inventor: MERRILEES JAMES DRUMMOND
IPC: F16D65/60
Filed: 1960-12-18
Abstract: 931,848. Automatic brake adjusters. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 26, 1961 [Dec. 8, 1960], No. 42229/60. Class 103 (1). An adjuster comprises an operating lever 5 formed with a housing 17 containing a worm 9 co-operating with a worm gear 10 by which excess travel of the lever 5 can be taken up by rotation of the worm 9, wherein the worm 9 is coupled to a ratchet mechanism which is actuated via a lost-motion device 2, 18 to rotate worm 9. The lever 5 is mounted on a brake cam-shaft 16. A plate 1 is freely mounted about the axis of shaft 16, a slot 2 co-operating with a pin 18 secured to the back-plate of the brake and a hole 3 engaging an end of a lever 4. The other end of lever 4 carries a quadrant gear 25 which engages a ratchet quadrant 6 of a sleeve 26 mounted on a shaft 7. Sleeve 26 possesses ratchet teeth 27 meshing with teeth 28 of a spring-loaded ratchet sleeve 8. During normal working pin 18 moves within slot 2 but, on the occurrence of wear, pin 18 engages an end of slot 2 to rotate plate 1 and thus to rotate ratchet sleeve 26 with respect to spring- loaded ratchet sleeve 8 through lever 4 until the rotation reaches the pitch of one tooth. On the return of plate 1 to its initial position worm 9 is rotated through the ratchet mechanism and lever 4. A locking device, e.g. a ratchet or spring, may be employed in conjunction with shaft 7 to avoid any possibility of run-back. In a second embodiment the lostmotion device comprises two parallel arms of a bracket between which the end of a lever moves. The ratchet device includes, in addition to meshing teeth, a flange which possesses indentations to co-operate with a series of balls actuated by the said lever.
Patent GB-1408222-A (GB)
Title: Process of cementing wells
IPC: E02D37/00
Filed: 1973-09-07
Abstract: 1408222  Wells BYRON JACKSON INC 7 Sept 1973 [20 Sept 1972] 42251/73 Heading E1F A method of cementing at a given location in a well 55 comprises mixing in predetermined proportions in a first mixing zone 13 water and a cement-modifying additive, flowing the mixture to a second mixing zone 22 where it is mixed with dry cement to form a slurry, samples of the additive-water mixture being withdrawn and the concentration of additive determined, pumping the slurry into the said locations and allowing it to set. The determination is preferably continuous and uses a spectrophotometer 64 which may control pump 16 supplying additive, and the sample may be returned after analysis. When the slurry is of the required density, as measured by densimeter 49, it is forced by triplex pump 52 down the well casing and up the annulus between it and the well bore; or it may be used for cementing a liner or repairing well defects. The additive may be a retarder, such as calcium ligno sulphonate, or an accelerator, friction reducer, dispersant or a fluid loss additive.
Patent GB-932014-A (GB)
Title: High vacuum pumping systems
IPC: H01J9/385
Filed: 1960-03-23
Abstract: 932,014. High vacuum pumping systems. VARIAN ASSOCIATES. March 23, 1960 [March 30, 1959], No. 42267/62. Divided out of 932,012. Class 8(1). The subject-matter of this Specification is substantially the same as that described in Specification 932,012 but the claims are concerned with the confinement of the sorbant material in the chamber 22. Specification 932,013 also is referred to.
Patent GB-980118-A (GB)
Title: Sealed arc chutes
Inventor: ALBRIGHT ROY H
IPC: H01H33/77
Filed: 1962-11-09
Abstract: 980,118. Gas blast switches. I-T-E CIRCUIT BREAKER CO. Nov. 9, 1962, No. 42490/62. Heading H2B. A load interrupter switch consists of a main contact blade 28 engaging with a main fixed contact 39 and an auxiliary blade 41, supported by the main blade through a torsion spring (not shown), and engaging an auxiliary fixed contact 65, 67 in an arc chute 10. As the main blade 28 is moved away from contact 39 the auxiliary blade 41 is held by friction in engagement with contact 65, 67 so that the torsion spring is wound up. As blade 28 reaches the position of Fig. 1b a stop, 47 thereon engages the auxiliary blade 41 to move it free of the contact 65, 67 whereupon the torsion spring rapidly separates these auxiliary contacts. The arc chute consists of two recessed side walls of, or lined with, gas evolving material which are sealed together along two edges 42a, 42b but are slightly separated along their remaining edges to form a narrow passageway in which the blade 41 moves and through which the blast gases are vented.
Patent GB-1378444-A (GB)
Title: Hose and method of making
IPC: B29C53/60
Filed: 1972-09-13
Abstract: 1378444 Hose GATES RUBBER CO 13 Sept 1972 [13 Sept 1971] 42551/72 Heading F2P A hose (of the kind comprising a polymeric tubular structure reinforced by at least two braided reinforcement layers wherein the reinforcement layers are separated by insulator material), is characterized by the nature of the braiding wherein the inner braided layer comprises a plurality of tension resistant strands 18 (Fig. 1) wound in one helical direction and a lesser number of zero twist textile strands 20 wound in the opposite helical direction and interwoven with the tension resistant strands, all the tension resistant strands being wound at substantially the same helical diameter and being substantially crimp free at the points of crossover with the zero twist strands (see Fig. 3) and the second braided layer is of similar construction to the first with the exception that the tension resistant strands 32 (Fig. 1) and zero twist strands 34 are wound in the opposite sense to the corresponding strands of the inner braided layer. It is stated that such a construction ensures that the tension resistant strands behave as substantially unbraided helical windings when the hose is complete whereas the zero twist strands impart the advantages of stability of a braid during the construction of the hose and prevent fraying of the reinforcement when the hose is severed. The construction allows the ideal spiral angle of 54 degrees 44 minutes to be achieved. The strands of tension resistant material are preferably of wire but textile material may be used. The polymeric material may be rubber or plastics, and the inner lining layer may be extruded on to a rigid or flexible mandrel. The outer cover and/or insulator may be extruded or helically wound and the completed hose may be sheathed in lead and vulcanized.
Patent GB-893158-A (GB)
Title: Extensible fibrous textile yarns, plied yarns and cables of high modulus materials such as glass
IPC: D02G3/18
Filed: 1959-12-15
Abstract: 893,158. Spinning yarns. OWENS-CORNING FIBERGLAS CORPORATION. Dec. 15, 1959 [Dec. 30, 1958(2)], No. 42688/59. Class 120(3) [Also in Group XXV] A method of making an extensible and flexible yarn, plied yarn or cable from continuous filaments of high modulus material such as glass, quartz, synthetic resins, high tenacity regenerated cellulose, comprises the steps (not necessarily sequential) of gathering filaments into a loose strand, impregnating with a liquid composition which may be cured or set to form a low modulus cushioning material such as natural or synthetic rubber or elastomeric plastics, e.g. polyvinyl chloride, wherein the filaments are spaced from each other thereby, curing or setting the composition, twisting one or more strands into a yarn &c. in which any one component (including the cushioning material coating one yarn) is twisted oppositely to a neighbouring component so that the yarn &c. has an approximately balanced structure. The impregnating and coating may be effected as a direct continuation of the filament forming process. One impregnated, coated and cured strand may be twisted into a wild yarn and plied with a similar but oppositely twisted wild yarn. The wild yarn may be such that, when released, it will partly untwist until the torque of the untwisting filaments is balanced by the countertorque of the cushioning material: the yarn may be partially or wholly untwisted leaving a residual twisting torque in the surrounding cushioning material. As shown, a strand 14 from a package 16 of sized, parallel, continuous glass filaments (or a twisted yarn) passes over a pulley 23 to break interbonding due to the size and through a coating and impregnating bath of rubber latex in a bath 21, a curing oven 25 to set the rubber, a mound 30 of a coating powder such as zinc stearate, corn starch or talc (which eliminates tackiness) on an oscillating table 31, between driven feed rollers 36, and is wound on a rotating ring-twister bobbin 33: the twist imparted at this stage may oppose any initial twist in the yarn. Composite yarns &c. may include strands or (staple) yarns of natural fibres such as cotton, or synthetic fibres such as nylon or polyethylene terephthalate, or conventional glass fibre strands.
Patent GB-1436140-A (GB)
Title: Magnetic materials
IPC: H01F1/11
Filed: 1973-09-12
Abstract: 1436140 Magnetic materials EASTMAN KODAK CO 12 Sept 1973 [13 Sept 1972] 42898/73 Addition to 1395704 Heading C1A [Also in Division C3] Magnetic recording tapes include a layer containing crystalline particles of Fe 3 O 4  with a minimum acicularity ratio not below 15 and containing alkali metal ions sufficient to confer a basicity of at least 0À04 meq./gram. The crystals may also contain alkaline earth metal ions and may be doped with di- or tri-valent metals. The Fe 3 O 4  may be made by the methods of Specification 1,395,704.
Patent GB-1269509-A (GB)
Title: Improvements in, or relating to, display containers
Inventor: JOLLIFFE NICHOLAS
IPC: B65D5/42
Filed: 1968-09-10
Abstract: 1,269,509. Display containers. N. JOLLIFFE. 10 Dec., 1968 [10 Sept., 1968], No. 42956/68. Heading B8P. A display container comprises a rectangular body 1 in which a tray 10 is mounted on a support 8. Flaps 7 at the top of the body may be folded down to abut the top of the tray 10 so that the container forms a dump bin. A further support 8b may be placed on the tray 10 to support a further tray 14 with its bottom inclined to the horizontal. The tray 14 is then used-to display goods. Alternatively, a support 8a may be placed on the tray 10 and the flaps 7 folded to lie horizontally on top of the support 8a to provide a display platform. Clips 20 engage holes 28 in the body 1 and support a sectional pole 21 on which display boards 17, 18 and 19 may be mounted by means of apertured ears 27. Two poles may be supported by one body, or by two adjacent bodies, and a sleeve 29 may be mounted on the poles by means of apertures 30. The display boards are then mounted by engagement of their ears 27 in slots 31 in the sleeve. With the exception of the poles, the container components are made of cardboard and are able to be disassembled and collapsed.
Patent GB-1275283-A (GB)
Title: A-nor steroids
Inventor: LEVINE SEYMOUR DAVID
IPC: A61K31/569
Filed: 1969-03-17
Abstract: 1275283 A-Norsteroids E R SQUIBB & SONS Inc 17 March 1969 43022/71 Divided out of 1275282 Heading C2C [Also in Division C5] The invention comprises compounds of formula (wherein R is H or acyl and R<SP>1</SP> is C 1-8  alkyl) and their preparation from the corresponding 1- unsubstituted-2-oxo-A-norsteroids by reaction with an alkyl formate and an alkali metal hydride. Conversion of the inventive compounds into pyrazolo derivatives is as described in Specification 1275282.
Patent GB-1481416-A (GB)
Title: Fibre reinforced materials
IPC: B29C48/05
Filed: 1974-12-13
Abstract: 1481416 Coated products IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Dec 1974 [13 Sept 1973 22 May 1974] 43077/73 and 22845/74 Heading B2E [Also in Divisions B5 and Dl] A fibre containing extrudate, e.g. polypropylene containing glass -fibres may be coated. A suitable coating material is powdered ethylene/vinyl acetate copolymer which may be fused at 120C after coating. A sand filled coating layer may be employed, preferably overlying an unfilled layer line or both surfaces may be coated and the product may be used for insulation in wall cladding and roofing. Polyethylene powder coatings may be applied and fused at 170C. Insulated flooring is prepared by coating cement on the fibre containing polypropylene. Waterproofed material may be prepared by melting a layer of 20% ethylene/vinyl acetate polymer and 80% bitumen on the extrudate. Fillers may be added to the coating. Plaster/ water mixtures may be coated on to the extrudate. A chair may be coated with thermoplastic powder containing a blowing agent. The coating is smoothed over the powder fused at 200C to activate the blowing agent. A sheet of fibre expanded polypropylene may be coated with PVC powder containing a blowing agent. Activation of 190C in contact with a glass plate produced a spongy foam layer. The extrudate may be machined or calendered before coating.
Patent GB-1159990-A (GB)
Title: Method for Producing Commutators for Electric Machines
IPC: H01R43/06
Filed: 1966-09-28
Abstract: 1,159,990. Making commutators; forging. NIPPON DENSO K. K. 28 Sept., 1966 [31 March, 1966], No. 43295/66. Headings B3A and B3H. A method of making commutators comprises placing a tubular blank in a die having a plurality of grooves corresponding to the number of spaces between the commutator segments and forming the blank by a punch having a plurality of teeth corresponding to the number of segments to form segments 5 interconnected by bridge pieces 6. A shaft fixing tube 9 is inserted in the bore of the workpiece and insulating material 8 is cast in between the tube 9 and the segments 5. When the material 8 has set, the bridge pieces 6 are machined away. Lugs 7 are formed in known manner prior to insertion of the tube 9.
Patent GB-1352725-A (GB)
Title: Rotational speed sensor
IPC: G01P3/44
Filed: 1971-09-17
Abstract: 1352725 Dynamo-electric machines; electric couplings TELDIX GmbH 17 Sept 1971 [17 Sept 1970] 43510/71 Headings H2A and H2E In a tachogenerator comprising a stator and rotor respectively connected to a stationary member and a rotatable member, the stator is connected to the stationary member through an elastically deformable element so that eccentric running of the rotatable member relative to the stationary member does not affect the electrical output signal of the tachogenerator. As shown, the rotor 12 of a tachogenerator is connected directly to a wheel hub 2 of a vehicle and is mounted by a ball bearing 13 in the stator which is connected to a shaft journal 1 through a flexible rod 27, e.g. of spring brass. The stator coil 9 is mounted between two toothed magnetic material discs 10, 11 and the rotor comprises a toothed annulus 12. The ball bearing 13 is located in a plane of symmetry of the magnetic circuits of the stator and rotor so that any transverse movement of the rotor and stator about the ball bearing will not affect the output signal. The coil is connected to external circuitry through a two part coupling comprising coaxial rigid plugs 33, 35, Fig. 2, and cooperating resilient sockets 41, 37, Fig. 3, the sockets being moulded in a plastics material body surrounded by a metal casing 44 which is firmly pressed into the bore in the axle journal 1. One end of the coil is connected to a hub 23 and then through the rod 27 to the outer plug and socket 33, 41, the socket being connected through lead 43 to the vehicle chassis. The other winding end is connected to a braided wire 31 crimped to the plug 35. An electrical connection from the wheel to the chassis by passing the bearings is provided by a leaf spring 45 engaging the end of the rod 27 and mounted on and rotatable with a cover 19 of the tachogenerator.
Patent GB-1076806-A (GB)
Title: Improvements in or relating to glass cutting
IPC: C03B33/033
Filed: 1964-10-26
Abstract: <PICT:1076806/C1/1> <PICT:1076806/C1/2> A method of cutting sheets or ribbons of glass consists in making a score line on the glass and then subjecting the sheet or ribbon to bending at each side of the score line, the amplitude of the bending being restricted so that the break occurs at a substantially constant position between the scoring and bending points.  A sheet or ribbon of glass 1 conveyed on rollers 2 has a score line 4 made by a cutting tool 3. Bending is effected by a diabolo-shaped member 8 the axis of symmetry of which is directly above the score line, and a roller 6 positioned directly below the score line.  The face width of roller 6 is less than the width of member 8 and the angle of the member 8 lies between 1 DEG  30' and 10', the effect being that the break commences at a position 18. The roller 6 and member 8 are fitted to arms 12, 13 of a pincer-like mechanism which has means, such as a spring or ram 15, for pressing the arms towards each other.  The bending means is arranged so that the axes of rotation of roller and member 8 remain constantly parallel to the face of the glass sheet and preferably obliquely to the direction of travel of the glass to oppose any tendency of the cut strip to break away by lateral movement; alternatively, they may be perpendicular to the direction of travel in which case a chilled liquid, e.g. water and alcohol, is projected from a distributer 19 against the glass around the score line.  The member 8 may be made of steel and the roller 6 of bronze.
Patent GB-1287274-A (GB)
Title: Automatic control apparatus for the thickness of a layer of froth in a flotation cell
IPC: B03D1/14
Filed: 1969-09-03
Abstract: 1287274 Froth flotation WESTINGHOUSE ELECTRIC CORP 3 Sept 1969 [26 Sept 1968] 43653/69 Heading B2H [Also in Division G3] The supply of frothing agent to a floatation separator is automatically controlled in dependence on a computation of the thickness of the layer of froth on the liquid from signals corresponding to contact of a moving probe with the upper and lower surfaces of the layer. In Fig. 1, the electrical probe 16 is withdrawn and reinserted periodically by an electric motor 22 and the thickness is determined by a computer 36 which regulates the supply of frothing agent (e.g. pine oil) at 24 to maintain the thickness constant. Computer 36 also controls an outlet valve 33 to maintain the slurry at such a level that only froth, with the separated minerals, overflows a weir at 15. Probe 16 may be cleaned between insertions. In a modification, a number of cells are mounted on an adjustable ramp so that froth cascades from cell to cell. The froth thickness and slurry level are controlled in each of a number of cells sequentially by a computer which also controls the outlet of slurry from the lowest cell to correct the slurry level in it, and the slope of the ramp to maintain a desired relationship between the slury levels in all the cells.
Patent GB-1487472-A (GB)
Title: Formation of lids on containers
IPC: B65B17/00
Filed: 1975-01-02
Abstract: 1487472 Forming lids on containers CHAMPION INTERNATIONAL CORP 2 Jan 1975 [4 Jan 1974] 44020/75 Divided out of 1487471 Heading B8C The subject-matter described is identical with that of the Parent Specification, but the claims relate to the means for applying lid blanks to filled containers and means for discharging the lidded containers.
Patent GB-1396635-A (GB)
Title: Modular occupant restraint system
IPC: B60R21/2165
Filed: 1973-09-20
Abstract: 1396635 Safety bags; steering wheels GENERAL MOTORS CORP 20 Sept 1973 [25 Sept 1972] 44091/73 Headings B7B and B7J In a vehicle restraint system a support member 32 located on the hub 16 of the steering wheel has mounted thereon an inflator 44, a container 66, a restraint cushion 58 and an outer closure 98, with a horn switch located between the closure 98 and the support 32 and actuatable by pressure exerted on the closure 98. Four spokes 18 of the hub 16 have overlying extensions 36, 92 of the support member 32 and container 66 respectively. The upper terminal ends of the spokes are welded to the steering wheel rim 22 which together with the hub and spokes is covered by moulded plastics 24. The outlet 48 of inflator 44, which is electrically actuated in response to vehicle acceleration, opens to a diffuser 50 having openings 54 which communicate with the cushion 58. When the inflator 44 is actuated the cushion inflates and ruptures plastic container 66 along weakened lines 74, 76, Fig. 2, to provide flaps and the closure 98 will likewise rupture along the line 108 to provide like flaps for the deployment of the cushion outwardly of rim 26. A rectangular shaped conductor 156, comprising a thin layer of copper sandwiched by thin layers of polyester material, seats on base 68 of container 66 and has notches 160 which rupture when the cushion is inflated. An arm 162 extends from each corner of the conductor 156 and is notched over the weakened line 76. Each arm terminates in a contact 164 having the lower polyester layer removed. The contact seats on a foam plastics member 144 so that manual depression of portion 112 of closure 98 compresses member 144 and engages contact 164 with a clip 150 which grounds the horn circuit. The conductor 156 is electrically connected to a suitable jack and likewise the electrical leads 168 of inflator 44 are connected to a suitable jack, the jacks being connected to the horn blowing circuit and to the control and monitoring circuit of the restraint system.
Patent GB-932801-A (GB)
Title: Improvements in and relating to submersible pumps
Inventor: HALLERBACK STIG LENNART
IPC: F04D13/08
Filed: 1959-12-30
Abstract: 932,801. Centrifugal pumps. A. B. W. DAN BERGMAN. Dec. 30, 1959, No. 44330/59. Class 110 (1). A submersible pump comprising an outer casing 1 disposed coaxially with an inner casing 2 containing an electric motor 4 which drives an impeller 3 has a flange member 12 with two branches diverging from its lowest point provided in the annular discharge passage between the inner and outer casings along the wall of the inner casing to form a guide vane which reduces turbulence in the fluid flowing through the annular passage to one or more discharge apertures at the top of the pump. A seal 13 engages the inside wall of the outer casing. The upper side of the partition 12 is formed into two chambers 11, 14 which are separated from one another by a flexible diaphragm 18 which pivotally supports a lever 17 attached at one end to a float 15 and at the other end to switch controlling means 16. The chamber 14 is open to the fluid in which the pump is immersed via apertures 19, 20 such that as the level of the fluid falls the float falls and operates the switch means 16 by the lever 17 to stop the electric motor driving the pump. A passageway may be provided through the partition 12 such that part of the flow from the impeller flows into the chamber 14, and by adjustment of the area of the apertures 19, 20 and the passageway the fluid level outside the pump at which the switch means are operated to stop the electric motor may be varied. Further, filters may be provided over the apertures 19, 20, which may be cleared by obturating the pump discharge apertures.