baber/WOPTO huggingface dataset:
Patent GB-845605-A (GB)
Title: Non-destructive sensing of thin film magnetic cores
IPC: G11C7/06
Filed: 1958-04-11
Abstract: 845,605. Circuits employing bi-stable magnetic elements. SPERRY RAND CORPORATION. April 11, 1958 [May 10, 19.57], No. 11605/58. Class 40 (9). [Also in Group XXXV] In a magnetic core storage device comprising a film of ferromagnetic material which is sufficiently thin as to exhibit single domain properties and to have a rectangular hysteresis characteristic in the plane of the film, non- destruction detection of the direction of polarization is effected by passing a current parallel to the plane of the film so as to produce a transverse magnetic field. The preparation of thin magnetic films and their properties is described in the Journal of Applied Physics, Vol. 26, No. 8, pages 975-980. As shown in Fig. 1, a thin magnetic film 10 has a remanent magnetization represented by the vector 12, and application of a read-out pulse 16 to a parallel conductive strip 14 produces a transverse field 18. As a result a temporary reduction of the remanent magnetization equivalent to vector 22 is obtained which induces an E.M.F. in a sense winding 24. In a modification, Fig. 2, the conductive strip 14 is replaced by a winding 26. An arrangement is described, Fig. 3, in which the thin film 10 is deposited on a smooth surface substrate 28 such as glass, and the conductive read-out strip 30 is in electrical contact with the film. Sensing is effected by a further conductive strip 32 which is insulated by an insulation layer 34 as shown or is arranged on the opposite side of the substrate. In the former case, a layer of high permeability material insulated by a layer 38 is used to complete the flux path of the film. It is stated that the conductors 30, 32 may be printed on the respective insulating layers. A matrix arrangement of thin films 10 is also described, Fig. 4, in which read-out and sensing is effected by conductive row and column strips 30<SP>1</SP>, 32<SP>1</SP>, respectively. Specification 845,604 is referred to.
Patent GB-687264-A (GB)
Title: Mining machine
IPC: E21D9/10
Filed: 1948-04-28
Abstract: 687.264. Mining-machines. MAVOR & COULSON, Ltd., and GUILLICK, E. D. M. May 13, 1949 [April 28, 1948], No. 11621/48. Class 68(i). The roof of a worked out seam is broken away to form a roadway by a stone-cutting wedge, the wedge being secured to a piston and cylinder assembly, the cylinder being mounted on a base which remains stationary with respect to the mine. In one form, the base is mounted on a sledge and has secured to it an upstanding cylinder the piston of which carries a wedge. When liquid under pressure is pumped into the cylinder, the wedge moves vertically into the roof of the seam to dislodge that roof. In another form, the piston cylinder assembly 29, 30 is horizontally disposed on a turntable 32 carried on a base 15 which is carried for vertical adjustment by hydraulic jacks 27 mounted on a sledge 16. At the front of the sledge is a jack 25 which, when expanded, engages the roof 21 of the seam. On the base 15 is carried a jack 28 which, when expanded, engages the roof 26 of the roadway so that, together with the jack 25, it resists the reaction of wedge 31. As portions of the roof are dislodged, the wedge 31 is withdrawn and the base 15 elevated, so permitting a fresh cut. In a modified form, the wedge-carrying piston cylinder assembly is vertically adjustable on a single or double jack unit, the base of which rests on the floor and the head of which bears against the roof of the roadway. A short jack may be used, its base resting on packing. Specifications 18233/07, [Class 68], 590,602, 590,604, and 593,752 are referred to.
Patent GB-1375248-A (GB)
IPC: B60J10/74
Filed: 1972-03-13
Abstract: 1375248 Glass runs HAPPICH GmbH Gebr 13 March 1972 [1 April 1971] 11635/72 Heading E1J A window guide channel of elastomeric material has lips 6 on the outsides of the limbs, and a reinforcement 4 embedded in the channel has ends terminating in or at the bases of lips 6. The reinforcement comprises transverse members 9 connected by a central longitudinal web 10. A notch (11) may be cut in the unreinforced portions of the limbs of the channel to allow positioning around a corner.
Patent GB-769911-A (GB)
Title: Improvements in or relating to agricultural implements
Inventor: HOCKEY WALTER STANLEY
IPC: A01B69/02
Filed: 1951-05-18
Abstract: 769,911. Agricultural implements. MASSEYHARRIS-PERGUSON (SALES), Ltd. Nov. 23, 1953 [May 18, 1951], No. 11637/51. Class 6(1). A tractor-mounted implement, of the type provided with marker arms 6 interconnected by a flexible cable 33 so that each arm is raised when the other is lowered, is characterized in the provision of a latch 28 to hold each arm raised and a pair of interconnected latch-disabling devices which operate so that the raising of one arm to the latched, position automatically disables the other latch to allow the other marker arm to fall when the implement is again lowered. The marker arms are attached to an implement which is mounted upon poweroperated draught-links, the movement of which, in raising the implement, causes the cable 33 to tauten and raise the lowered arm 6 to a vertical position. Each arm is rotatably mounted on a pin 4 carried by a bracket 1 which has an extension 11 mounting a fixed boss 13. A sleeve 14 and cap 18 are rotatably mounted on the boss 1.3 and a central spindle 20 is rotatable relative to both the boss and the sleeve. A torsion spring 15 interconnects the boss 13 and cap 18, and pins on the spindle and cap respectively can inter-engage during the motion of the sleeve to rotate the spnidle also. An arm 19 on the sleeve 14 projects across the line of motion of the arm 6. The spindle is integral with an arm 23 connected by a link 25 to the corresponding mechanism adjacent to the other marker arm, the arm 23 being formed with a cam 26 which can push a spring-loaded pivoted latch 28 into the path of the raised marker arm. Raising of the implement, by the power-lift, raises the marker-arm 6 which encounters the arm 19 in rising and thereby rotates the sleeve 14 and the spindle 20. As the latter rotates, the cam 26 pushes the latch 28 behind the raised marker-arm 6 and the link 25 causes the mechanism on the opposite side to be unlocked. On lowering the implement the opposite marker-arm is therefore lowered, the cam 26 having passed over-centre to lock the first arm in its raised position by means of the latch 28. Reference has been directed by the Comptroller to Specifications 544,041 and 624,707.
Patent GB-676914-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J25/58
Filed: 1950-05-10
Abstract: 676,914. Magnetrons. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 10, 1950 [May 13, 1949], No. 11638/50. Class 39 (i). A magnetron for generating high frequency oscillations, of the kind in which a conductive helix 6 constitutes an electric resonator which determines the frequency and a cathode 4 is located outside the helix so that that part of each helical turn which faces the cathode functions as an anode element, is characterized in that the turns of the helix are connected to one another by means of a conductor 8 which is attached to them at points remote from the cathode. The helix may be straight and the cathode flat, or, as in Fig. 1, the helix may be bent into a circle and the cathode arranged at the centre of the circle. The helix may be supported by a pair of Lecher wires 5 from which the output is taken and may be made of metal tubing through which cooling liquid can be passed; the frequency may be adjusted by varying the temperature and consequently the dimensions of the helix, the length of one helical turn being an integral number of half wavelengths of the frequency generated. The glass envelope is preferably flattened in the vicinity of the electrodes to reduce the air gap in the magnetic circuit.
Patent GB-1498765-A (GB)
Title: Tube-tyre patch and method for applying same
IPC: B60C/
Filed: 1976-03-23
Abstract: 1498765 Repairing punctures CATERPILLAR TRACTOR CO 23 March 1976 [5 May 1975] 11657/76 Heading B7C A puncture repair patch comprises a stem 16 integral with an internally vulcanized rubber member 12 having a concave surface 18, an unvulcanized rubber layer 20 extending over the concave surface and a removable protective cover 24 preferably of polyethylene or polypropylene. The patch additionally includes a rubber based adhesive 21 comprising uncured natural rubber and solvent therefor and a curing layer 22 comprising uncured natural rubber, a solvent therefor, and a curing accelerator. To repair a puncture in a closed-section tyre, (1) a band 26 is placed around the outer circumference of the tyre and at least one (preferably two) band 27 is placed at the inner circumference (alternatively the tread band and vehicle wheel rim perform the functions of the bands 26, 27); the inner surface of the tyre cavity adjacent the puncture is cleaned and roughened through the puncture and rubber based adhesive 21 is coated on that surface followed by a curing layer 22 (both the adhesive and the layer being applied through the puncture), the adhesive is allowed to dry for at least 10 mins. and the curing layer is allowed to dry for at least 1 min.; (3) the patch is inserted through the puncture, the cover 24 preventing the unvulcanized rubber layer 20 adhering to the stem; (4) the cover is removed via the puncture by pliers, forceps, or tweezers; (5) the patch is clamped in place by a wrench 36 with L- members 38 attached to its jaws by welding gripping the stem and being moved away from the tyre outer surface by screwing of bolts 40; (6) steam, or steam followed by air, at a pressure 10 p.s.i.g. is introduced into the tyre; and (7) the layers 20-22 are cured by the steam with or without further heat applied to the outer surface adjacent the patch by a heated pad. Layers of uncured rubber with holes to pass over stem 16, and adhesive are applied to the outer surface of the tyre. The stem is then cut off flush with the rubber layers, a final coating of uncured rubber is applied and the coating, rubber layers and adhesive are cured.
Patent GB-117960-A (GB)
Title: Improvements in Speed Indicators and the like.
Inventor: ROBINSON JOSEPH WILLIAM
IPC: G01P3/18
Filed: 1917-08-14
Abstract: 117,960. Robinson, J. W. Aug. 14, 1917. Centrifugal speed indicators.-The revolving masses are formed of a pair of half rings g, which are fitted with springs o and are connected to each other and to the rotary spindle f by pins h engaging slots in the rings and locked by crosspins j. The rings are connected by links k to a rod which slides in the spindle f and is controlled by a spring p. The index pointer z<1> is fitted with a coil spring y<1> tending to move it forward, and is connected by a pinion z, quadrant y, and crank x, to a pin w pressing on a leaf n resting on the top of the spindle l. The pointer thus follows the downward movement of the links k and rod l as the speed increases. The tension of the spring p can be varied by means of a screw nut t which actuates a gland nut q by a pin-and-slot connexion
Patent GB-1300060-A (GB)
Title: Liquid supply nozzles
Inventor: MOWBRAY DORIAN FARRAR
IPC: F02M61/20
Filed: 1969-03-05
Abstract: 1300060 Fuel injection nozzles CAV Ltd 18 Feb 1970 [5 March 1969] 11683/69 Heading F1B A liquid supply nozzle comprises a valve member 20 slidable in a nozzle head 18 for controlling liquid flow through an orifice 22, resilient means formed from a tube 24 acting to a position in which flow is prevented and a chamber 23 for pressurized liquid which moves the valve member to permit flow through the tube to the chamber. In the arrangement shown the nozzle is mounted in cylinder head 10 of a compression ignition engine for injection of fuel into the combustion  chamber thereof. Tube 24 is coiled in the form of a spring, the interior of which is supplied with fuel through a passage 27 in an end plug 26 attached to one end of the tube. Plug 26 is screwed into a body portion 15 and the spring compression can thus be adjusted by rotating the plug. The other end of tube 24 is secured to valve member 20 for the supply of fuel to passage 25 therein. Nozzle head 18 is retained in position between stop plate 17 and the lip of a member 16 screwed to body 15. An annular clearance space surrounds the nozzle and communicates via passage 33 with the adjacent air inlet passage 11 of the engine. Leakage fuel can drain into the clearance space through passages 31, 32.
Patent GB-393061-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/52
Filed: 1932-04-23
Abstract: 393,061. Hydraulic shock-absorbers. ARMSTRONG, F. G. G., 14, York Road, Beverley, East Yorkshire. April 23, 1932, No. 11699. [Class 108 (iii).] In shock-absorbers of the type wherein a pair of pistons reciprocate within a pair of cylinders interconnected by a conduit for the flow of liquid from one cylinder to the other such as is described in Specification 366,167, means, dependent on the variation of temperature or pressure, are provided to vary the flow of liquid along the conduit and so vary the damping load. In the shock-absorber as shown in Figs. 1 and 2, the passage 21 between the cylinders 10, 11 is controlled and adjusted according to the pressure inside the shockabsorber by the provision of a bellows arrangement 23 which is secured to the casing 24 and open to the atmosphere through opening 22. The bellows or other pressure variant is connected to a rod 27 by a bell-crank lever 25, the rod 27 baving a conical end to control the effective size of the passage 21. In another form the valve rod 27 may be actuated by a temperature variant such as a spring comprising two strips of metal of different coefficients of expansion.
Patent GB-1042922-A (GB)
Title: A reversible ropeway
IPC: B61B12/10
Filed: 1963-03-25
Abstract: 1,042,922. Tensioning cables in conveyer systems. G. DUSTERLOH, FABRIK FœR BERGWERKSBEDARF G.m.b.H. March 25, 1963, No. 11735/63. Heading B7L. A conveyer has an endless cable 11 for moving rail vehicles 12 in opposite directions, the cable being driven from pulley 10 and has tensioning elements 4, 8 and 4<SP>1</SP>, 8 acting on cable sections 9, 9<SP>1</SP> and supplied with pressure fluid by control valve 5. Hand pump 1 pressurizes the fluid in reservoir 7 to a predetermined pressure which with valve 5 in the central position, causes cylinders 4, 4<SP>1</SP> to tension cable 11 to a predetermined degree, check valve 3 is then closed. If pulley 10 is driven anticlockwise, valve 5 is moved manually or automatically to lock fluid in cylinders 4 to prevent shortening of section 9 and cylinders 4<SP>1</SP> are connected to reservoir 7 so that any slack in cable section 9<SP>1</SP> is taken up. When pulley 10 is reversed then so is valve 5, fluid being locked in cylinders 4<SP>1</SP>.
Patent GB-202684-A (GB)
Title: Improvements in cigarette and cigar holders
IPC: A24F13/10
Filed: 1922-04-26
Abstract: 202,684. Smith, S. E. April 26, 1922. No Patent granted (Sealing fee not paid). Cigar and cigarette holders.-An internal freely sliding member is provided to eject the cigarette or cigar end. The sliding member consists of a stem 5 having enlarged heads 6, 7 which are perforated or fluted to provide a passage for the smoke. The cigarette &c. end is ejected by jerking the holder, the movement of the sliding member being limited by shoulders 9, 10 on the holder and by a ring 11. A spring may be provided to press lightly on the head 6 to prevent accidental movement of the sliding member. Reference has been directed by the Comptroller to Specification 189,794.
Patent GB-1491027-A (GB)
Title: Synchronous motor
IPC: H02K3/46
Filed: 1975-03-20
Abstract: 1491027 Electric motors CANADIAN GENERAL ELECTRIC CO Ltd 20 March 1975 [4 April 1974] 11748/75 Heading H2A A planar air gap synchronous motor comprises a permanent magnet roller 11 mounted inside a hermetic enclosure 12 and a stator mounted outside the enclosure, the rotor including an annular array of axially magnetized permanent magnets 52 and the stator including an A.C. winding formed of an annular array of overlapping coils all having a span of one pole pitch and being embedded in a bonding medium to form a discoidal winding structure 27. The stator shown includes a core 31 of helically wound metal strip. In a modification, Fig. 5 (not shown), the core 31 is omitted and replaced by a second rotor similar in construction to rotor 11. The second rotor may be mounted inside a second hermetic enclosure.
Patent GB-559623-A (GB)
Title: Improvements in or relating to instruments for determining the roughness of surfaces
IPC: G01B5/28
Filed: 1942-08-21
Abstract: 559,623. Gauging roughness of surfaces. BROWN & SONS (HUDDERSFIELD), Ltd., D., and TUPLIN, W. A. Aug. 21, 1942, No. 11771. [Class 106 (ii)] An instrument for determining the roughness of surfaces, of the kind in which relative movement takes place between a trailing member in the form of a fine-pointed stylus e and the surface d to be tested, so that vertical movements of the tracing member indicate the roughness is characterized in that the support for the tracer member has associated with it two or more independently movable and appropriately-spaced rollers or skid members which rest on the surface to be tested and act upon the support through the medium of a balance lever or through a system of such levers. As shown in Fig. 1, the stylus e is pivotally or otherwise carried by a support c, which is itself supported by a pair of rollers a<SP>1</SP> through the medium of a balance lever f and a knife edge g<SP>1</SP>, the rollers being carried by arms a pivoted to member c. In Fig. 3, the rollers are replaced by skids h, h<SP>1</SP>, spaced longitudinally instead of laterally. More than two rollers or skids may be employed, the lever system being suitably modified. Specifications 552,675 and 559,622 are referred to.
Patent GB-1373848-A (GB)
Title: Hydraulic breaker operated by oil
IPC: B25D9/12
Filed: 1972-03-14
Abstract: 1373848 Percussive tools YUTANI JUKO KK 14 March 1972 [27 March 1971 17 July 1971 19 July 1971 12 Aug 1971 (2)] 11911/72 Heading B4C  A percussive tool comprises a housing 1 slidably accommodating a hammer 17, a piston 6 to which the hammer is secured, and a valve member 5 which is movable relative to the piston to open and close communication between chambers 6a and 8. A tool bit 22 received in bore 4a and slidable between limits defined by pin 24 and recess 22b<SP>1</SP> is impacted by the hammer when the latter is reciprocated by means of oil pressure and spring 21.  When in operation with the tool bit contacting a work surface, oil is supplied via check valve 11 to chamber 9 and, via ducts 6b, to chamber 6a, and the piston 6 and valve member 5 are raised against pressure oil acting on the end surface of the valve stem 5b and force of spring 21. When the position of Fig. 2 is reached the pressures in the chambers 8 and 9 are equalized via duct 2c, and upward movement of the valve member 5 continues whilst the piston and hammer are  driven downwardly to impact the tool bit. When the piston 6 passes the duct 2d chamber 8 again communicates with sump 13 and the valve  member 5 is returned to its Fig. 1 position, and the cycle is repeated. Upon the tool bit encountering a void in a work surface or upon the tool being raised from the work surface, the valve member, hammer and piston will be forced to a position in which the piston blocks supply duct 2b and conduits 12 and 2e communicate via at least one passage 5a in the valve, so that operation of the tool will be terminated. As the piston approaches the latter position oil between frusto-conical surfaces 16a<SP>11</SP> and 6c<SP>11</SP> will form a cushion and prevent an impact between the two surfaces. The length of cylindrical wall of hammer 17a is at least 1À3 times the diameter of the hammer.
Patent GB-1520705-A (GB)
Title: Electrolytic descaling of metals
IPC: C25F1/04
Filed: 1977-03-22
Abstract: 1520705 Electrolytic descaling ALLEGHENY LUDLUM INDUSTRIES Inc and RUTHNER INDUSTRIEANLAGEN AG 22 March 1977 [1 April 1976 9 Feb 1977] 11937/77 Heading C7B Metal (stainless steel) is descaled by immersion in a molten oxidizing salt for at least 2 seconds followed by electrolysis in an aqueous neutral solution of an alkali metal or ammonium chloride, sulphate or nitrate for at least 4 seconds, to which latter may be added 0À1 - 50g/l of an additional fluoride, chloride, perchlorate, chromate, nitrate, nitrite, sulphate or sulphite. The molten salt may be K/NaNO 3  and contain K/NaOH and/or NaCl. Workpiece polarity may be alternated in electrolysis e.g. +/-/+.
Patent GB-912923-A (GB)
Title: Improvements relating to cushioning devices formed from resilient foam
IPC: A47C27/14
Filed: 1959-04-09
Abstract: 912,923. Mattresses &c. DUNLOP RUBBER CO. Ltd. April 9, 1959 [April 10, 1958], No. 11952/59. Class 52 (4). A foam mattress has a cover sheet of air permeable material attached throughout its surface area to substantially the whole of the load-bearing surface of the mattress. Preferably, a mattress consists of a cover of textile material secured to the foam material in such a way as to retain the air permeability of the textile. The cover may be attached by adhesives, by moulding or forming the foam material directly in contact therewith or by subsequently fusing the foam material to the cover. Separate sheets or a preformed cover of twill may be stuck on to flat outer sides of two sheets of latex foam rubber or polyurethane foam, the foam sheets having been previously joined together on their inner surfaces by the apices of frusto-conical projections formed thereon. Alternatively, the covering material may be tailored to line a mould in which the sheets of foam material are formed. The foam sheets are subsequently joined together.
Patent GB-1368028-A (GB)
Title: Recording system
IPC: H04N1/29
Filed: 1973-03-15
Abstract: 1368028 Facsimile MUIRHEAD Ltd 15 March 1973 [15 March 1972] 11972/72 Heading H4F In a facsimile reproducer-e.g. of the electrostatic kind-the video signals, produced by a known raster scanning system, are fed in quantized form to an array of styli 6, Fig. 1A, arranged across a reproducing web 7, each line covered by the array being notionally divided into a plurality of elementary areas (e.g. lower half Fig. 2) and each area is printed &c. upon by a group of the styli such that by the video signal for that area causing the activation of the required styli in the group, the proportion of the area necessary to give the required overall tone will be covered in. Thus in Fig. 2, each area is covered by a "one third area" stylus 9a and by an adjacent "two thirds area" stylus 9b. Various tones of black, dark grey, light grey and white can then be produced by the styli combinations: 9a+9b, 9b only, 9a only, 0. The video signal has thus to be quantized in amplitude and duration. Both analogue and digital transmission embodiments are described. In an alternative embodiment Fig. 3, each elemental area is printed on by a single stylus 19, the constant movement of the web beneath the stylus being used whereby the amount of the area filled and the consequential tone is determined by the duration that the stylus is activated. A type of pulse width modulation is therefore used.
Patent GB-326385-A (GB)
Title: Improvements in or relating to wireless receiving sets
IPC: H05K7/06
Filed: 1929-04-17
Abstract: 326,385. Clark, A. G., Heyne, W. O., and Plessey Co., Ltd. April 17, 1929. Receiving-sets, construction of.-A self-contained valve unit comprises a base 7 having a recess on its under-side, sockets for a detector valve 1 and for one or more amplifying valves 3, 45, mounted on the top of the base, coupling elements for the valves, and an HT-supply shunting- condenser mounted in the recess on the base. The valve coupling elements may comprise lowfrequency transformers high-frequency chokes, condensers 45, and grid leaks 47, which may be devoid of their usual protective casings. The base is perferably a one-piece structure of moulded insulating material and a wire gauze screen 17a may be moulded in the structure to screen the low-frequency transformers.