baber/WOPTO huggingface dataset:
Patent GB-1183986-A (GB)
Title: Improvements in or relating to Punching Apparatus
Inventor: KEEN FRANCIS HAROLD
IPC: G06K1/04
Filed: 1967-08-12
Abstract: 1,183,986. Selective punching apparatus. INTERNATIONAL COMPUTERS Ltd. 10 July, 1968 [12 Aug., 1967], No. 37130/67. Heading B4B. A record card punching apparatus comprises a bed 5 over which the card is fed by means of a follower 6, a line of punches 4 arranged at an oblique angle to the path of travel of the card, means 9 for storing data which is to be represented by perforations in columnar positions on the card, storage scan control means 10 for reading data items out of the storage means and means 11 responsive to data read out of the storage means for energizing punch mechanisms 3 in synchronism with the passage of record columns past the punch mechanisms. The punch mechanisms are each connected by a line 8 to the storage device 9 which consists of an array of ferrite storage cores 11; each core is located at the intersection of a row line 12 and column line 13 which positions corresponds to the position at which the perforations are to be produced on the card. The cores are each connected via lines 14À1 to 14À12 to read-out windings in the scan control so that, in use, if the card is positioned so that the first column 2, Fig. 1 is under the lowermost punch shown and the readout line 14À1 is energized, the lowermost punch is operated. The rest of the cores are energized in turn in synchronism with the column-by-column movement of the card past the punching mechanisms 3. In modifications the punches may be arranged in "V"- or "W"-formation and two stores (15, 16, Fig. 3) may be incorporated.
Patent GB-851012-A (GB)
Title: Improvements in or relating to combination locks
Inventor: LEE GEORGE EDWARD
IPC: E05B37/08
Filed: 1956-12-06
Abstract: 851,012. Permutation locks. MOSLER SAFE CO. Dec. 6, 1956, No. 37265/56. Class 44. A combination lock; comprising a bolt 38 coupled to a movable fence 40 which is normally biased towards a recessed cam 44 secured to a rotatable dial shaft 14, and is formed to interlock with the cam recess 48 when the cam and a plurality of tumblers 36 mounted about the dial shaft are rotated to predetermined positions; is provided with means 68, 70 for continuously holding the fence out of engagement with the cam and tumblers throughout rotation of these members to their predetermined positions, the means including parts for imparting continued movement to the fence from a position in contact with the cam periphery to a position spaced therefrom. A finger 56 having a detent 68 is mounted on the lock case so as to overlie the cam 44 and fence 40, towards which members it is biased by a spring 64. When the bolt 38 is shot, rotation of the cam 44 causes a projection 52 on the fence 40 to move out of the cam recess 48 and to ride on the cam periphery, in which position the detent 68 partly engages a correspondingly dome-shaped cavity 70 formed in the fence. The spring 64 causes the detent to move into full engagement with the cavity 70, thereby moving the fence wholly out of contact with the cam and tumblers. When the combination is set, axial movement of the shaft 14 causes the cam 44 to engage the finger 56 whereby the detent is moved out of engagement with the cavity 70, and the fence is released to engage the cam recess. In another embodiment, Figs. 11-16 (not shown), the blade carrying the detent is biased towards the cam by a spring loaded disc which, together with the blade, is mounted on the lock case exterior, the detent being pin-shaped and passing through a hole in the case to engage a corresponding cavity in the fence. In a third embodiment, Figs. 17-21 (not shown), the detent is replaced by two magnets mounted respectively on the fence and upon an arm disposed above the fence, the magnets being arranged to attract each other and thus hold the fence in contact with the arm and out of engagement with the cam and tumblers.
Patent GB-881344-A (GB)
Title: Improvements in or relating to portable liquid-fuel stoves
IPC: F24C5/18
Filed: 1958-11-20
Abstract: 881,344. Valves. PERMOID Ltd., and BILTON, L. Nov. 20, 1959 [Nov. 20, 1958], No. 37357/58. Class 135. [Also in Group XI] In a liquid fuel stove (see Group XI) a valve block 20, with a passage 23, 24, 26 therethrough, comprises a sleeve 27 housing an axially movable spindle 28 guided by a ring 29. A flange 31 secured to the spindle can slide freely in the sleeve and is urged downwards by a compression spring 32 against the action of a weaker spring 33. A pin 34 adjustably secured in the lower end of the spindle extends into the passage 24 and obstructs the flow of paraffin through the block to a degree varying according to the position of the spindle. The spindle is normally actuated by a manually operated linkage which also comprises a member (not shown) which automatically descends when the stove is lifted or tilted, thus allowing the spindle 28 to be moved downwards by the spring 32 to close the valve.
Patent GB-858005-A (GB)
Title: Connection unit for connecting an elongated flexible element between two relatively displaceable bodies
Inventor: WHITTINGTON KEITH RICHARD
IPC: G01C19/38
Filed: 1957-11-29
Abstract: 858,005. Gyroscopic apparatus. SPERRY GYROSCOPE CO. Ltd. Nov. 29, 1957, No. 37371/57. Class 97(3) [Also in Group XXXVI] In a gyroscope such as that described in Specification 817,570 the stator and follow-up frame 2 which are capable of limited relative movement are electrically connected by a quartz capillary tube 2 containing mercury. The tube 2 is secured to a member 3 through a flexible diaphragm 21 sealed between bushes 22 by a ring 23, the diaphragm and an inner recess in a button 5, which makes contact with the stator, forming a pocket containing mercury in contact with the mercury in tube 2. A protective tube 6 integral with member 3 ends in a flange 8 having three threaded holes to take screws 12 fitting into a member 4 to which the other end of tube 2 is secured so that members 3 and 4 can be locked together to prevent relative movement which might damage tube 2 before and during fitting of the connection unit to the gyroscope. Member 4, which is secured. to the follow-up frame, contains an insulating plug 26 bored axially to form a reservoir for mercury in communication with the mercury in tube 2, the end of the reservoir being closed by a conducting screw 27. A protective sleeve 16 is removed before the locked unit is positioned in the gyroscope. Specification 829,671 also is referred to.
Patent GB-1168309-A (GB)
Title: Improvements in or relating to Cores for use in the Construction of Concrete Structures and the like
Inventor: KINGSBURY ROBERT FREDERICK THO
IPC: B28B7/30
Filed: 1966-08-22
Abstract: 1,168,309. Extractable cores. STRESSED CONCRETE DESIGN Ltd. 22 Aug., 1967 [22 Aug., 1966], No. 37603/66. Heading B5A. A concrete structural element with a passage or duct extending therethrough is cast around an extractable core comprising a length of flexible or deformable material of circular or oval cross-section, which decreases in crosssection when one end of the core is pulled to extract the core from the cast element. The core preferably contains at least one internal longitudinal passage of diameter between 30 and 50% of the external diameter of the core and must also accommodate on elongation of at least 33% and return to substantially its original length. The core may be made of natural or synthetic rubber.
Patent GB-1515865-A (GB)
Title: Wood pulp
IPC: D21B1/16
Filed: 1975-09-12
Abstract: 1515865 Treating mechanical pulp PAPIRINDUSTRIENS FORSKNING-SINSTITUTT 12 Sept 1975 [12 Sept 1974] 37605/75 Heading D2W Mechanical wood pulp is impregnated with a buffer agent (other than a borate) which buffers in the pH range 6-10, the buffer agent being present in an amount of at least 0.2% by wt., based on the dry wt. of the pulp. The buffer, which may be added in the form of an aqueous solution, may be introduced into a refiner or grinder, the white water system of a paper machine, or by injection into the pulp. The buffer may be an alkali metal salt or ammonium salt of phosphoric acid, carbonic acid, citric acid or tartaric acid. The examples describe the use of sodium phosphate, ammonium carbonate, sodium citrate, and sodium borate (for comparison only) buffer solutions. The mechanical pulp may be a refiner pulp, ground wood pulp or, a thermomechanical pulp, which may have been treated with ozone. The treated pulps are stated to be easily wet defiberised, and show a high water absorption rate.
Patent GB-900070-A (GB)
Title: Apparatus for supporting vehicles and containers in rotary tippers
IPC: B65G67/00
Filed: 1960-11-03
Abstract: 900,070. Rotary tipplers. KRUPP-ARDELT G.m.b.H. Nov. 3, 1960 [Nov. 4, 1959], No. 37858/60. Class 78 (4). As a rotary tippler 5, Fig. 1, rotates a platform 10 supporting a vehicle 14 is moved laterally by gravity against a side support 16 and then the platform, vehicle and side support move to bring the top of the vehicle into contact with a top support 15 attached to the tippler frame. As described, when the tippler rotates in the direction of the arrow 20 a spring 17 assists the motion of the vehicle 14 under gravity into contact with a side support 16. The movement of arms 7 under gravity which brings the vehicle into contact with supports 15 is guided by slots 9 and bolts 8 attached to the arms 7. The slots 9 may be straight and the positions of the slots and bolts may be reversed. Reverse rotation of the tippler returns the platform 10 to its original position where it is arrested by a stop 19. In a second embodiment, Fig. 4, the tippler rotates anti-clockwise causing the platform 10 and arm 7 to which it is attached to move to the left, bringing the side of the vehicle 14 into contact with a support 25. During this movement rails 22 slide over rollers 21 and a slot 23 in arms 7 moves over bolts 8 attached to the side support 25. Further rotation causes the arms 7 to move until the top of the vehicle 14 abuts stops 15, slots 9 and bolts 8, and guide rails 22 and rollers 21 co-operating to guide this movement. In both embodiments bolts and slots may replace guide rails and rollers and vice versa.
Patent GB-1174281-A (GB)
Title: Improvements in or relating to Agricultural and Like Machines
Inventor: HARGREAVES DEREK BURTT
IPC: A01C5/06
Filed: 1965-09-03
Abstract: 1,174,281. Agricultural implements; sowing seeds. "SISIS" EQUIPMENT (MACCLESFIELD) Ltd. 2 Dec., 1966 [3 Sept., 1965], No. 37861/65. Headings AlB and A1D. A method of tilling and drilling land having surface growth comprises the steps of forming a plurality of adjacent lines of slits in the land to a depth sufficient to expose soil beneath fibrous root matter of the growth, widening the slits and delivering seed to at least some of the widened slits. Apparatus for carrying out the method comprises a driven rotor 14 having a number of slitter blades, and hoppers 17, 18 each having a pair of rollers 19, 20 feeding material to the slits via flexible tubes 21b, 22b located between pairs of opener discs 23, 24. One hopper carries seed and the other, a fertiliser. A press-wheel 25 is located behind the hoppers. In a modification a single hopper may be provided to distribute seed only or a mixture of seed and fertiliser. The apparatus may be in the form of a trailer as shown or mounted on tractor lift links.
Patent GB-1152336-A (GB)
Title: Electrostatic Writing Tube and method of manufacture
IPC: H01J31/06
Filed: 1966-08-24
Abstract: 1,152,336. Electron beam apparatus. SYLVANIA ELECTRIC PRODUCTS Inc. 24 Aug., 1966 [30 Aug., 1965], No. 38021/66. Heading H1D. One method of manufacturing an electrostatic writing tube 10 includes the step of selectively coating interior surfaces of the tube envelope with an anhydrous electrically conductive material to form an anode coating 22, and the method, which does not involve a preliminary air brake in the presence of the matrix to drive off occluded water vapour, produces a tube that has virtually no internal matrix arcing. The coating 22, which may be of stannous chloride to give a transparent coating or of aluminium, extends from adjacent the matrix element 16 in the faceplate 14 into the tube neck 12 where it is electrically connected by snubbers 24 to the anode element. The matrix 16 may comprise a number of laterally arranged insulatingly spaced conductive members extending from the internal to the external surface of the matrix, the members being spaced by at least six times their own diameter. Also the matrix may be polished on its inner face with a 400 grit polish. In an alternative method the interior surface of the tube envelope is coated with a hydrated material and the tube is then air-baked to drive off the water vapour prior to attaching the matrix and stored in an anhydrous atmosphere until the matrix element is sealed thereto. In prior art described, the anode coating is of "Aquadag" (R.T.M.) which is airbaked when the matrix has been sealed to the envelope, and matrix arcing is reduced by a process involving sandblasting and acid etching the matrix prior to providing the anode coating.
Patent GB-1268717-A (GB)
Title: A driving tool magazine
IPC: F16B27/00
Filed: 1969-06-30
Abstract: 1,268,717. Screwdrivers. ATLAS COPCO A.B. 30 June, 1969 [8 July, 1968], No. 38034/71. Divided out of 1,268,716. Heading B3N. The magazine for a driving tool for applying fasteners, e.g. screws or nails, to a workpiece, the tool being of the type which comprises a guide body 20, a driver axially movable in the guide body, and a feed opening 24 in the guide body, the magazine being operative to feed fasteners singly in succession through the feed opening and into frontal alignment with the driver, comprises a housing 21, a rocker member 43 mounting an ejector 44 arranged to push a leading fastener 25 out of the fastener band 38, a feeder 45 arranged to feed the next fastener forward into alignment with the feed opening, and means (such as a manually operable lever 48), for alternately rocking the rocker member 43 in opposite directions for feeding fasteners to the driver. A stop arm 47 engages behind another fastener to prevent rearward movement of band 38 during retraction of the feeder 45.
Patent GB-879097-A (GB)
Title: Improvements in or relating to bulk storage containers
Inventor: SAVILE PATRICK DESMOND
IPC: B60P1/62
Filed: 1956-12-13
Abstract: 879,097. Fluidizing material on vehicles. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 9, 1957 [Dec. 13, 1956], No. 38074/56. Class 78 (4). A conveyer 10 mounted within a chamber 1 conveys material fluidized within the chamber to an outlet. In the construction illustrated the material is fluidized by air passing from conduits 7 through permeable walls 4 and the material is conveyed by a screw 10 provided with a cover plate 11 to a rear outlet. The body has an inlet hatch (not shown) in its upper surface and a hatch 16 for receiving a retractable filter 15. Specification 726,233 is referred to.
Patent GB-1122648-A (GB)
Title: A method of manufacturing fuel elements
Inventor: SMITH SAMUEL SPENCELEY
IPC: G21C21/02
Filed: 1965-09-07
Abstract: In the manufacture of nuclear fuel elements, a layer of magnesium powder is electro-phoretically deposited on the surface of a uranium rod which is then heated in an inert atmosphere to between 650 DEG and 700 DEG C., preferably 675 DEG C, at which temperature the magnesium reduces the naturally present film of oxide on the surface of the uranium and is deposited as a coherent coating on the surface. Prior to electro-phoresis the rod, of reactor quality uranium, is pre-heated to remove corrosion products, dirt and scale, and preferably the particles of uranium monocarbide on the surface are also removed.  A preferred cleaning and decarburizing process is described in Specification 1,060,832. The pre-treated rod is immersed in an electro-phoretic solution containing magnesium powder of a size that will pass through a 150 mesh sieve and by passage of a current is coated with a deposit 0.001 to 0.010 inch thick.  The bath containing the Mg may comprise nitromethane, isopropyl alcohol, zein and aluminium nitrate. The anode may be of platinised Ti.  The electro-phoretically coated rod is heated in a reaction tube either in a high vacuum, in which case the coating formed is very thin, or in an inert gas such as argon in which case the coating is thicker. Gaseous impurities must be limited and powerful gettering is desirable.  The presence of uranium tetrabromide or a trace of bromine facilitates the formation of the coherent coating. At the end of the heat treatment, the rod is covered with a two-layer system, the outer layer being a loose powder readily removed by light brushing and the inner layer a thin, adherent, coherent coating of magnesium of uniform thickness. The magnesium-coated rod can be placed in a magnesium or magnesium alloy can and autogenous welding effected between coating and can.
Patent GB-964245-A (GB)
Title: Insulating material and method of making same
IPC: C04B18/02
Filed: 1962-10-11
Abstract: A silica insulating material having a dielectric loss tangent below 0.002 at 8600 megacycles is obtained by preparing a feed solution by mixing a minor amount of a polyhydroxy organic compound containing at least three carbon atoms per molecule and capable of providing a material which will form a gas at 2300-3000 DEG  F., for example glycerine, butane-diols, polypropylene glycol, or hexane triols, with a major amount of a silica sol containing less than 0.4% wt. of alkali metal calculated as the oxide, drying to a substantially dry state at 250-600 DEG  F., grinding to a particle size below 100 m , introducing these particles into a furnace at 2300-3000 DEG  F. whereby the particles are converted into discrete hollow microspheres of diameter 5000 m  or less, at least 40% of which have smooth hole-free walls, and thereafter removing these microspheres from the furnace and recovering.  In an example the furnace was a conventional propane fired updraught furnace, the product issuing from the top of the furnace being cooled by a water-spray and recovered in a cyclone. The mass has an average true density of 1.0 to 1.2 g./c.c.
Patent GB-840028-A (GB)
Title: Process for the manufacture of isoprene
IPC: C07C11/18
Filed: 1958-12-01
Abstract: Isoprene is prepared by polymerizing propylene to 2-methylpentene-1, isomerizing this to 2-methylpentene-2 and demethanating to obtain isoprene.  The polymerization is preferably effected in the presence of a trialkyl aluminium, gallium or indium or dialkyl beryllium together with nickel or platinum at 50-280 DEG  C. and sufficient pressure to maintain the liquid phase.  Aluminium tri-2-methylpentyl, prepared by reacting aluminium tripropyl or triisobutyl with propylene.  The isomerization is preferably effected with a base-modified synthetic zeolite catalyst, e.g. a synthetic silica-alumina contacted with a base, washed, contacted with a buffered acidic solution of pH 3-5 and dried with nitrogen at 60 DEG C. or the acid form of a sulphonated styrenedivinylbenzene polymer ion-exchange resin.  Liquid phase treatment is preferred at a space velocity of 1-10 vol./vol./hr. and a temperature of 35 DEG  C. to the boiling point at the pressure used which is preferably atmospheric. Demethanation is effected by heating to 700-850 DEG  C., using an hourly space velocity of 1,000-1,000,000.  An inert diluent such as nitrogen, helium, mixtures of carbon monoxide and dioxide and particularly steam may be used, the volume ratio of diluent to hydrocarbon being 0.4-15 : 1.  The apparatus used for the pyrolysis may be of nickel-free stainless steel, nickel-containing stainless steel which has been sulphided or aluminium bronze.
Patent GB-1375452-A (GB)
IPC: B41J5/00
Filed: 1972-08-18
Abstract: 1375452 Speech recognition systems J A DREYFUS 18 Aug 1972 [18 Aug 1971 1 Aug 1972] 38725/72 Heading G4R A speech recognition system includes means for distinguishing between plosive and fricative phonemes by determining the rising slopes of the energy variations in the phonemes of the words to be recognized. Second means are provided to determine the overall energy of the phonemes. The duration of each phoneme and of the silence between adjacent phonemes is measured, and words composed of particular combinations of plosives and fricatives are identified by circuitry responsive to the first and second means and to the duration measurements. The speech waveform consists of groups of phonemes which are machine recognizable and which represent words easily pronounced by persons of any of a number of nationalities. In one embodiment, Fig. 3 (not shown), the speech waveform passes via a filter to a channel (C8) which outputs a signal (260) when a plosive (i.e. waveform with a fast rising front) occurs. A second channel (C7) develops a varying signal (261) representing the energy/time variations. Further channels (C1-C6) provide signals (267-262) representing characteristic and formant energy bands of the non-plosive phonemes, i.e. certain vowels (which may be whispered) and fricative and nasal consonants. The various signals pass to circuitry, not described in detail, which includes analog-digital converters and which measures the durations of silences to separate phonemes one from another and to separate the groups of phonemes (words). The circuit may further distinguish successive groups of words. The words are identified and may control a machine. A second embodiment, Fig. 5 (not shown), employs an amplitude compressor in each channel, the compressors including forward and backward loops to provide a response corresponding to the dynamic curve of hearing.
Patent GB-1513834-A (GB)
Title: High temperature resistant heat insulating ceramic material
IPC: B01J21/12
Filed: 1975-09-23
Abstract: 1513834 Ceramic material VOLKSWAGENWERK AG 23 Sept 1975 [24 Sept 1974] 38914/75 Heading C1J [Also in Divisions B and C3] A ceramic material comprises a mixture of 30-60 vol. per cent aluminium oxide powder (Al 2 O 3 ) and 70-40 vol. per cent of alumina-silica fibres, based on the total volume of powder and fibres, sintered together at 1200C.-1550C. The mixture may contain 5-20 wt. per cent of zirconium silicate based on the total weight of powder and fibres and/or may contain a catalytically effective additive (see Division B1)
Patent GB-1524555-A (GB)
Title: Material handling apparatus
IPC: E02F3/30
Filed: 1975-09-24
Abstract: 1524555 Material handling apparatus WARNER & SWASEY CO 24 Sept 1975 [15 Oct 1974] 39183/75 Heading B8H A material handling apparatus comprises a base 16, a first boom section 34 and a second boom section 36 telescopically disposed within the first boom section 34 for extension with respect thereto by a first motor 42. The boom sections 34, 36 are mounted in a cradle 12 on the base 16 for rotation about their longitudinal axis by a second motor 50. Means 64 for transmitting the rotational drive from the second motor 50 to the first boom section 34 and for retaining the first boom section against axial movement relative to the cradle 12 include a single member 68 for transmitting both axial thrust forces and rotational drive forces respectively arising from the first and second motors 42, 50.