baber/WOPTO huggingface dataset:
Patent GB-1179929-A (GB)
Title: Fluid-Actuated Hand Tool.
Inventor: SPANGLER PAUL JOSEPH
IPC: H01R43/042
Filed: 1967-04-11
Abstract: 1,179,929. Jointing by stamping; attaching electrical connectors. ETC Inc. 11 April, 1967, No. 16483/67. Headings B3A and B3Q. A fluid-actuated tool comprises jaws 58, 59 on a body 11 having a chamber 12 divided into at least two compartments, an actuator 28, 29, 30 in each compartment, and means for admitting pressurized fluid into each compartment to operate the jaws. As shown, the jaws are for crimping an electrical connector to a conductor and its insulation, and the chamber is divided by walls 13, 18, 19 into three compartments, each containing a free piston 28, 29, 30. A hollow rod 25 on piston 28, through which compressed-air is supplied to the compartment between wall 18 and piston 29, bears on piston 29. Similarly, the piston-rod 26 of piston 29 bears on piston 30 and supplies it with compressed-air. Thus, after turning a safety catch 52 and pressing a control lever 51 towards the body 11, compressed-air is supplied through passages 44, 46 to the pistons and these act together to close the jaws by means of a cam 38. The cylinder walls 13, 14, 18, 19 are preferably so located by C-rings 15, 17, 20, 21 that the first piston, carrying the cam 38, has a longer stroke than the second, 29, which has a longer stroke than the third, 28. Because of this, on completion of a crimping operation, or if the tool is operated without a workpiece between the jaws, the force applied to the jaws beyond a desired closure position when all the pistons are effective, is no greater than that applied by the first piston 30. Piston-stops 90, 91, 92 are provided on the walls 18, 19, 14. The compartments are exhausted ahead of the advancing pistons, through passages 49, 56, 57, and the pistons are returned by compressed-air supplied ahead of piston 30, through passage 49. The jaws are bolted together in pairs, Fig. 3 (not shown), for movement about a pivot 70 by pairs of followers 80, 84 engaging the cam 38. A spring (85) biases the jaws to the open position. The jaws (66, 67) for crimping the insulation may be adapted for adjustment to crimp insulation of different thicknesses.
Patent GB-1501345-A (GB)
Title: Electromagnetically compensating beamless dynamometer or weighing apparatus
IPC: G01G7/02
Filed: 1976-04-23
Abstract: 1501345 Dynamometers SARTORIUS WERKE GmbH 23 April 1976 [23 April 1975]  16593/76 Heading G1N A dynamometer or weighing apparatus comprises a work coil 18 movable in an air-gap 16 of a magnet 12 which is maintained stationary in use, and a construction of two parallel elastic links 28, 30 arranged in places separated in the direction of movement of the work coil 18. The links 28, 30 are connected at one of the ends to a bracing member 32 maintained stationary, in use and at their other ends to a rigid connecting element 26 movable with the work coil 18, the links 28, 30, the connecting element 26 and the line joining the connections of the ends of the links 28, 30 to the bracing member 32 forming in cross-section a parallelogram. Each link 28, 30 comprises two arms 34, 36 of equal length and separated relative to each other in a plane so as to constitute the two non-parallel sides of a trapezium, the mutually furthest apart ends of the arms 28, 30 being connected to the bracing member 32. The median axis 14 of the work coil 18 intersects the two trapezia containing planes at right angles and within the areas bounded by the trapezia sides. At least a major portion of the magnet is disposed in the space bounded by the links. As shown the whole of the magnet 12 is disposed in the aforesaid space. The links may extend across the sides of the magnet Figs. 3, 4 (not shown). The arrangement of magnet and coil of Figs. 1 and 2 may be inverted Figs. 5, 6 (not shown). A support pan 50 for containing articles to be weighed is carried by the connecting element 26. The arms of the links are provided adjacent each end thereof with articulations 38, 40, 42, 44. The arms may be made of springy material.
Patent GB-109344-A (GB)
Title: Improvements in Expanding Mandrills.
Inventor: DERHAM JAMES ALFRED
IPC: B23B31/40
Filed: 1916-11-22
Abstract: 109,344. Derham, J. A. Nov. 22, 1916. Mandrels.-A mandrel for use in lathes and other machine tools and for inserting boiler &c. tubes, consists of three rings B, B', B<2> on a central bolt. The meeting faces of the rings have engaging projections b<1> and recesses, the ends of which are inclined to receive hard wedge blocks C. By screwing up the nut on the central bolt, the wedge blocks are pressed outwards, to grip the work. In a modification, the rings axe made with recesses only.
Patent GB-379774-A (GB)
Title: Improvements in or relating to electrical distribution systems for distributing music and the like
IPC: H04H20/83
Filed: 1931-06-08
Abstract: 379,774. Valve amplifying circuits, MARCONI INTERNATIONAL MARINE COMMUNICATION CO., Ltd., Marconi House, Strand, London, and PIPER, R. W.,. 62. Chiltern View Road, Uxbridge, Middlesex. June 8, 1931, No. 16701. [Class 40 (v).] In a programme distribution system comprising a number of loud-speakers each associated with a power amplifier LS6A, a number of intermediate amplifiers MHL4 each receiving a separate programme and distributing switches 12, the whole system has a common power supply and failure of the grid biasing arrangements disconnects the filament circuits of the power valves. A D.C. motor 6 drives a generator 8 which supplies anode current, and A.C. taken from the slip rings 7 on the motor is connected to transformers 1, 2 over a tapping switch 3. Transformer 1 supplies filament current for the power valves, secondary A of transformer 2 supplies heater current for valves MHL4, and secondary B heats a rectifier RV which rectifies current from secondary D to supply biasing potential over a common resistance 9 or over separate resistances for each pair of power and intermediate valves. When the grid bias circuit is operating, a relay 4 closes contacts 5 in the primary of transformer 1.
Patent GB-893153-A (GB)
Title: Ship's hull formation
IPC: B63B1/06
Filed: 1959-05-15
Abstract: 893,153. Ships' bows form. CANTIERI RIUNITI DELL' ADRIATICO. May 15, 1959 [May 20, 1958], No. 16707/59. Class 113. To reduce the wave making resistance at the bows of a hull the bow sections 1, 2, 3 are hollowed in the vicinity of, and almost entirely above, the load water line 10, as shown at 4, 5, 6, to produce a recess so that the normal bow wave 8 becomes as shown at 9.
Patent GB-581179-A (GB)
Title: Improvements in or relating to voltage modifying systems
IPC: G05F1/62
Filed: 1943-10-12
Abstract: 581,179. Voltage modifying systems. STEVENS, A. H. (Electronic Laboratories, Inc.). Oct. 12, 1943, No. 16715. [Class 38 (iv)] A D.C. source 13 is adapted to deliver current to a load 21 at double or half its voltage by means of two condensers 10, 11, four vibrating contacts 1, 2, 3, 4 which in one position put condenser 11 in parallel with the source 13 so as to be charged thereby while simultaneously condenser 10 is in series with the load and the source and in the other position of the contacts the condenser 10 is in parallel with the source 13 and being charged while the condenser 11 is in series with the load and the source. This arrangement gives double the voltage. By moving a switch 15, 16, 17, 18 to its other position and by interchanging the source and load, half the voltage may be obtained. The contacts 1, 2, 3, 4 are vibrated by a coil 5.
Patent GB-388630-A (GB)
Title: A process for manufacturing fatty substances miscible with water
IPC: C11C3/00
Filed: 1932-06-13
Abstract: Liquid train oils composed largely of unsaturated alkyl esters are saturated by addition of hydroxyl groups.  Bottle-nosed whale oil, sperm oil, and Physet oil, obtainable from marine mammals of the Physeter and Hyperoodon groups, may be saturated by mixing with concentrated sulphuric acid at a low temperature, allowing the mixture to stand, stirring into an excess of water, and heating with direct steam.  Alternatively the conversion may be effected with permonosulphuric acid, hypochlorous acid, or by adding and subsequently splitting off halogen or hydrogen halide. The product is miscible both with water and fatty or mineral oils.ALSO:Fatty substances miscible both with water and with mineral and fatty oils, and useful in the leather industry as a substitute for Degras, are obtained from liquid train oils composed largely of unsaturated alkyl esters, by converting the latter into saturated esters by adding hydroxyl groups.  Bottle-nosed whale oil, sperm oil and Physet oil, obtainable from marine mammals of the Physeter and Hyperoodon groups, may be converted by mixing with concentrated sulphuric acid at a low temperature, allowing the mixture to stand, stirring into excess of water, and heating with direct steam.  Alternatively, the conversion may be effected with permonosulphuric acid or hypochlorus acid, or by adding and subsequently splitting off halogen or hydrogen halide. The product may be bleached, and may be diluted with fats, waxes, hydrocarbons, &c.
Patent GB-575611-A (GB)
Title: Improvements in or relating to the manufacture of alkali-resistant alginic fibres and films
IPC: D01F9/04
Filed: 1942-11-25
Abstract: Alginic fibres and films are rendered alkali resistant by impregnating them with resinforming material and causing polymerization of the resin to proceed after impregnation. Urea-formaldehyde is preferably used as the resin-forming material, and the catalyst necessary to promote the polymerization may be either the alginic acid itself, or, when calcium alginate constitutes the fibre or film, a weak acid or acid salt such as an alkali metal dihydrogen phosphate.
Patent GB-925198-A (GB)
Title: Decoration and insulation of walls and ceilings
Inventor: CRABB ERNEST
IPC: E04B1/74
Filed: 1959-05-15
Abstract: 925,198. Decorating and insulating walls and ceilings of buildings. PORON INSULATION Ltd. May 15, 1959, No. 16772/59. Class 20 (4). [Also in Group XV] A method of decorating an interior wall or ceiling comprises covering the wall or ceiling with a flexible insulating layer of an expanded synthetic resin, and thereafter applying a patterned or other wall or ceiling paper on to the layer of expanded synthetic resin. In the exemplified embodiment, thin strips 22 of expanded polystyrene are adhered to the plaster facing 21 of a wall 20, and wallpaper 23 is applied over the expanded polystyrene.
Patent GB-744927-A (GB)
Title: Improvements in or relating to the manufacture of hollow articles from organic plastic materials
IPC: B29C49/04
Filed: 1953-06-17
Abstract: 744,927. Blow-moulding plastic bottles &c. LACRINOID PRODUCTS, Ltd.; and HAGEN, R. May 12, 1954 [June 17, 1953], No. 16788/53. Class 87 (2). A tube 5 of plastic material is extruded from a nozzle 6, vertically-reciprocable mould parts 7 are closed around the tube to cut off a length of it, and the mould descends away from the nozzle. As the mould descends the tubular length is blown to bottle &c. shape by air from pipe 11. As or when the mould reaches its lowermost position the mould parts open, Fig. 4, and the bottle b is expelled mechanically or pneumatically. The empty mould rises again and the operation is repeated. The mould parts are carried by a plate 8 reciprocable on pillars 9, this plate carrying the air pipe 11. The tube may be extruded continuously or intermittently. Modifications:-(1) The blown'bottle may be expelled as the mould rises towards the nozzle. (2) The tube may be extruded horizontally. (3) Instead of a tube, two parallel bands of thermoplastic material may be extruded downwardly and their long edges united to form a tube which is blown to bottle shape. The edges may be united by the mould or by other means.
Patent GB-1385235-A (GB)
Title: Advancing and working of plastics materials
IPC: B29C48/67
Filed: 1972-04-12
Abstract: 1385235 Extruder screw WESTERN ELECTRIC CO Inc 12 April 1972 [13 April 1971] 16807/72 Heading B5A [Also in Division B1] To obtain better mixing in a screw extruder 20 flow obstructions, e.g. radially extending pins 47 or vanes (not shown), are positioned in the channel 42 formed between adjacent turns of the screw flight 41 so that they all lie in a plane perpendicular to the screw axis, the thread of the screw being uninterrupted at the intersection with the plane. The pins 47 may project obliquely from the plane and need not project as far as the flight 41 from the screw shaft 32. Several sets of pins 47 are provided. The barrel 26 and screw shaft 32 may be heated and/or cooled, and their dimensions are given. A coating of pigmented and filled PVC or polyethylene is extruded on to a wire in a die (not shown).
Patent GB-257054-A (GB)
Title: A new or improved reading and writing desk or table for use with beds, couches, chairs and the like
IPC: A47B23/02
Filed: 1925-06-30
Abstract: 257,054. Hutchison, E. June 30, 1925. Invalids' tables and desks; tables and desks combined with seats.-- A reading desk or table for use with beds or chairs comprises a frame consisting of side members a extended to form legs and connected by a board b forming the desk and provided with a ledge c connecting the side members and with flexible means such as a cord d for angular adjustment, The cord d passes through a hole b<1> in the frame from a bed post or the like and the free end is secured on a cleat g in easy reach. The ledge c is adjusted on the frame by a rack c<1> and spring tooth c<3> or pinion on the side member. The lower part a'1 of the side member is hinged at a<2> and may be held adjusted by a nut and slotted strut h. The table b may thus be held horizontal. Pins on the lower ends of the side members a may be secured in recesses on chair arms.
Patent GB-620051-A (GB)
Title: Improvements in or relating to float-operated discharge valves for liquid containers
IPC: F16K31/22
Filed: 1946-06-03
Abstract: 620,051. Float-actuated valves. TILLANEY, L. R. June 3, 1946, No. 16827. [Class 135] In a liquid container, the discharge pipe 2 passes through the wall of the container and has its inlet end situated at the base thereof, the pipe carrying a float 7 which, when the liquid in the container has reached a low level, closes off ports 5 in an inlet fitting 3 to prevent the entry of liquid or air to the discharge pipe, and the fitting 3 is provided with flutings 6 which prevent the float from being held down by suction. The float carries a rubber &c. sealing washer 8. The fitting 3 screws into a cap 4 secured to the bottom of the container.
Patent GB-1141365-A (GB)
Title: Improvements in or relating to a method of finishing articles of thermo-plastic synthetic resins
Inventor: ALEXANDER JOHN RITCHIE
IPC: B32B27/00
Filed: 1965-04-21
Abstract: 1,141,365. Laminating; wood working. JAMES M. BROWN Ltd. 20 April, 1966 [21 April, 1965], No. 16867/65. Headings B5L and B5N. A method of finishing an article comprises applying a thin finishing sheet to the article which is moulded so as to have a sheet or web of fabric partially embedded in the surface of a thermoplastic synthetic resin body thereof, said fabric having interstices into which the thermoplastic synthetic resin of the article body penetrates so as to be mechanically locked to the fabric, and causing the thin finishing sheet to be adhered to the exposed part of the fabric. The finishing sheet can be a veneer of wood in which case adhesive must be used, the adhesive being a cold curing urea or melamine formaldehyde condensation product or an epoxide resin adhesive composition. The finishing sheet when formed of or coated with a thermoplastic synthetic resin is applied by heat and/or pressure. The fabric is a mesh material or is woven, knitted or felted to provide the interstices into which the synthetic resin of the body penetrates; the fabric can be made of metal, paper, cotton, felt, hessian, polyethylene, polypropylene, polyvinylchloride, nylon or spun glass.
Patent GB-277296-A (GB)
IPC: C09K3/14
Filed: 1927-06-24
Abstract: 277,296. Metals Protection Corporation, (Assignees of Patten, J. C.). Sept. 9, 1926, [Convention date]. Metal polishes. - Surfaces of chromium, for example, an electro deposit on another metal, are polished by the use of fine grained partly calcined hydrated alumina or bauxite, the calcining temperature being between 600‹ C. and 1000‹ C. Small quantities of other polishing materials, for example, emery, carborundum, artificial corundum, chromium sesquioxide, or sand may be added and the material may be made up in the form of blocks by mixing the powdered material with a binder consisting of stearic acid or beeswax or a mixture thereof; the material may be greased, before admixture with the wax, with petroleum jelly. A softer binder may be used, for example jellied soap, the bauxite being present to about 50 per cent of the weight of the soap. When the hard binder is used, the proportions may be 1 pound of bauxite, 0.5 pound of stearic acid, about 0.5 ounce of petroleum jelly,. and other abrasives about 1 ounce.
Patent GB-1120221-A (GB)
Title: Improvements relating to moulding plastics material
Inventor: CRANCH HAROLD GEORGE
IPC: B29C33/38
Filed: 1964-04-23
Abstract: 1,120,221. Moulding foamed plastics. CHELLINGWORTH & SINGER Ltd. 22 July, 1965 [23 April, 1964], No. 16959/64. Heading B5A. A method of reproducing a copy of a master pattern, comprises the steps of producing a plaster east or similar negative of the master, placing the negative in a mould or using it as a mould covering the internal surfaces of the negative with a release covering, e.g. metal foil, filling the mould with foamable plastics material, causing the plastics to expand and set and removing the cast plastics body. The plastics may be prefoamed polystyrene beads or a polyurethane mixture and heated by steam or other hot gas introduced through perforated pipes inserted through holes in the mould. The plastics body may be used to make a further mould, e.g. a foundry mould from which copies of the master are cast.
Patent GB-612880-A (GB)
Title: Improvements in or relating to aircraft
IPC: F02K1/09
Filed: 1946-06-04
Abstract: 612,880. Operating positive clutches. ANDERSON, J. R. June 4, 1946, Nos. 16982/46 and 11786/47. [Class 80 (ii)] [Also in Groups XXVI and XXXIII] The drive between a gas turbine and aircraft propeller includes a clutch 28a, the elements 52, 55 of which are brought into synchronism prior to their engagement. Each element is provided with two sets of concentric teeth 53, 54, the former of which are of shallow V-shape and the latter are in the form of sectors. In the case of the element 52, the two sets of teeth are integral, while the outer V-shaped teeth of the element 55 are formed on an axially-movable ring 57. The clutch elements are coupled to synchronizing alternators 64, 65 connected by a magnetic drag coupling 103, 104, the latter element of which is mechanically connected to a contactor arm 96. To effect engagement of the clutch elements, a switch 86 is closed, and the propeller pitch reduced so that it is rotated by the airstream. If the propeller and turbine are rotating at different speeds, the contactor arm engages one of two contacts 107, 108 connected to the pitchchanging mechanism 84, which automatically effects the necessary change of pitch to equalize the speeds of the propeller and turbine. When synchronism is obtained, the arm 96 engages the central contact 106, thereby energizing solenoids 63 by which the ring member 57 of the clutch element 55 is engaged with the element 52. The movement of the ring 57 closes contacts 111 and a switch 113 to start a motor 59 which rotates a screwed spindle 60 by means of which the second portion of the clutch element 55 is engaged with the element 52. When full engagement is obtained, a limit switch 101 is opened, the switch 86 is moved to the " off position, the switch 113 opened, and the solenoids 63 de-energized. When it is desired to disengage the clutch in order that the aircraft may be propelled by the jets only, the switch 87 is closed to move the reversing switch 100 to a position in which the motor 59 will rotate in a direction to separate the clutch elements. The clutch 28a being engaged, the alternators 64, 65 rotate in synchronism and the switch 113 is closed, thus driving the motor to separate the clutch members. When the latter are fully separated, the switch 87 opens, the reversing switch 100 moves to its neutral position, the switch 113 is opened, as are the circuits of the solenoids 63. Specifications 565,912 and 568,548, [both in Group XXXIII], are referred to.
Patent GB-885505-A (GB)
Title: Isolator valve for fluid-pressure system
Inventor: DAVIES RAYMOND JOHN
IPC: F16K3/26
Filed: 1957-05-29
Abstract: 885,505. Valves. DUNLOP RUBBER CO. Ltd. May 14, 1958 [May 29, 1957], No. 16992/57. Class 135. [Also in Group XXXII] A valve for use in a fluid suspension system for a vehicle (see Group XXXII) comprises a piston 32 biased by a spring 44 to a central position in which it permits restricted communication only between a pair of connections 22, 23 and a connection 24 and arranged to be deflected in either direction against the spring in response to a pressure differential between the connection 24 and the connections 22, 23 to a position in which it permits free communication between the connections. Axial grooves 31 in the bore 26 in which the piston operates provide the restricted communication between the connections 22, 23, and the connection 24 communicates with the connections 22, 23 through a hollow extension 33 of the piston, a radial passage 46, and a radial clearance 38 around the top of the piston. Instead of the grooves 31 an annular groove around the piston may provide the restricted communication between the connections 22, 23, and flats on the upper part of the piston may take the place of the annular clearance. In response to an increase of pressure in the connection 24 the piston descends to interconnect the three connections through an annular recess 35 in the piston, whereas a reduction of pressure in the connection 24 causes the piston to rise to interconnect the connections 22, 23 below the piston and allow free communication with the connection 24 through passages 36, the radial clearance 38 &c. Specifications 868,825, 869,346 and 873,348 are referred to.