baber/WOPTO huggingface dataset:
Patent GB-1213152-A (GB)
Title: Fluid tight seals
Inventor: DRYER ELDON OLIVER
IPC: F16K1/46
Filed: 1967-08-11
Abstract: 1,213,152. Joint-making packing; pipe Joints; valves. NORTH AMERICAN ROCKWELL CORP. 11 Aug., 1967 [11 Aug., 1966], No. 37079/67. Headings F2B, F2G and F2V. Fluid sealing means comprises supporting means for a mass of visco-elastic plastics material which mass is enclosed by and completely fills a chamber formed by at least one sealed surface and the supporting means which latter allows deformation of the mass when subjected to pressure. In the embodiment shown in Figs. 5 and 6 for a poppet valve 70, a mass of viscoelastic plastics 90, e.g. P.T.F.E., is retained in a chamber 91 defined by a recess 79 in the valve body 75, a spring disc 85 located between the body 75 and base 73, and a spring ring 86 held in a groove 78 in the body 75. The disc 85 and ring 86 are radially spaced to provide an annulus through which, when the valve is closed, a lobe 83 on the valve seat 82 projects into sealing contact with the material 90 and also deforms the disc 85 and ring 86 thereby pressurizing the material 90. In a further embodiment, Figs. 1 and 8, for a pipe joint 109, a gasket comprising plastics material 126 located between inner and outer curved spring metal strips 140 and 150, respectively, is housed in a groove 125 in one, 110, of the mating pipe end discs 110 and 112. When the joint is tightened by nuts 133, the strips 140 and 150 are resiliently deformed, Fig. 9 (not shown), and the material 126 is pressurized between them and the discs 110, 112. In a, still further embodiment, Fig. 11, sealing means between discs 170 and 172 comprises a U-section spring metal ring having one arm 176 in a groove 171 in one disc 170 and its other arm 177 in a groove 173 in the . other disc 172, visco-elastic plastics material 184 and 185 filling chambers 186 and 187, respectively defined by arm 176 and groove 171 and by arm 177 and groove 173. The lip portions 180 and 181 o'f arms 176 and 177 are separated by a spacer ring 195. The plastics material may be P.T.F.E., polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride or polyvinyl fluoride. Specification 1,213,153 is referred to.
Patent GB-776085-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L29/41
Filed: 1954-12-22
Abstract: 776,085. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 22, 1954 [Dec. 23, 1953], No. 37117/54. Class 37. A semi-conductor device comprises a semiconductor body, e.g. Ge or Si, provided with an alloy electrode to which a conductor wire is connected in which said wire comprises a tube made of a first metal filled with a second metal of lower melting point than the first and some of which has been alloyed with the semiconductor body to form the alloy electrode. The composite conductor may be formed by drawing or swaging a composite body. The extent to which the molten core metal spreads over the semi-conductor surface depends on its surface tension relative to the semi-conductor and tube metal but excessive spread may be prevented by limiting the available core metal forming a restriction near the end of the tube by pinching. The composite conductor may itself form a terminal or may be secured to a terminal. In one method of manufacture, Figs. 4 and 5, the composite conductor and semiconductor body 20 are held in a jig 21, e.g. of graphite, and the assembly passed through a heating coil after which the body is inverted and held in a further jig 25, 28 while another composite conductor is similarly alloyed to it. Alternatively a single composite conductor may be bent into circular form with the semiconductor clamped between its ends and heated, after which the conductor is cut, or a pair of dissimilar composite conductors may be welded together to form such a clamp. Two similar or different composite conductors may alternatively be held in contact with the opposite faces by a spring clamp. The materials for the composite conductors depend upon the function of the alloyed electrode. For example, to form a NPN transistor from a P-type body the low melting metal might be lead-antimony alloy in a tube of nickel or aluminium, while to make a PNP transistor an N-type body in conjunction with a low melting component of In or a Ge-In alloy may be used. For a diode an N-type body may be used with cores containing indium and tin respectively to form a PN junction and ohmic connection respectively.
Patent GB-1057078-A (GB)
Title: Improvements in or relating to transducers for use in instruments for measuring surface roughness
Inventor: BOOSEY FREDERICK ROBERT
IPC: G01B7/34
Filed: 1964-09-10
Abstract: 1,057,078. Measuring surface roughness electrically. SIGMA INSTRUMENT CO. Ltd. Sept. 1, 1965 [Sept. 10, 1964], No. 37156/64. Heading G1N. [Also in Divisions G5 and H4] Surface roughness of a workpiece W (Fig. 1) is measured by a stylus 2 resiliently attached to a Piezo-electric crystal in a tubular housing 1 secured to a block 15 hinged at its centre of gravity 17 to a carriage 16. Fine adjustment of the C. G. is effected by movement of a counterweight 19. The stylus is biased downwards by a spring 18. Carriage 16 is suspended from a four bar link mechanism 23-26 pivoted to a fixed bar 22. The linkwork is initially held latched at 31. When released, a spring 20 causes the assembly to move the stylus across the length of the workpiece, the output voltage of the crystal being proportional to the surface level variations. A dashpot 21 ensures that the stylus moves at constant speed. The form bar link mechanism is gravitationally balanced by weights 32, 33 so that the apparatus may be used at any angle. Details of the transducer construction are given.
Patent GB-782334-A (GB)
Title: Automatic, selective and cyclical devices for controlling the transfer of movement
IPC: G05G21/00
Filed: 1955-12-29
Abstract: 782,334. Gearing for stopping and starting machinery; cams. ELECTRICITE DE FRANCE. Dec. 29, 1955 [Dec. 31, 1954], No. 37334/55. Classes 80 (2) and 80 (3). An endless chain carries plates divided into lines and columns, the lines being equi-spaced and the columns aligned in the direction of motion of the chain, disposed along the lines are teeth which act through a series of levers to slide toothed or plain discs rotationally mounted on a driving shaft into their engaged or disengaged positions. A chain comprising links 1 supporting plates 5 formed with teeth 6 selectively arranged along regular lines and columns passes over toothed wheels 2, 3 driven synchronously with a driving shaft 4. The teeth 6 engage arms 8 to rock a lever 11 and, through a spring counter loaded rod 15, a lever 17 which carries a cam-shaped projection 20. The projection 20 engages with a projection 21 on a sleeve 22 slidable on, and driven by, a shaft 23, to move the sleeve to the left and rock a lever 24 about its pivot 25 by means of a pin 26 engaging a groove 27 in the sleeve 22. A pin 28 mounted on the lever 24 engages a grooved collar rigid with a pair of discs 30, 31 splined to the driving shaft 4. The disc 30 has a smooth periphery the diameter of which is equal to the pitch circle of a toothed wheel meshing with a pinion 32, driving a counter, free on a shaft 33, and the disc 31 is formed with a toothed segment having such a number of teeth that one revolution of the disc 31 corresponds to one revolution of the pinion 32, the latter having one tooth truncated to the pitch circle to allow ungeared rotation of the smooth segment of the disc 31 or the rotation of the disc 30 when either of these are engaged by rocking of the lever 24. In a modification, Fig. 3, the lever 17 is extended by a lever 36 having a stud 37 at its end, which stud engages with a disc 38 to prevent movement of the lever except when the stud 37 is able to pass through a notch 39 in the disc. The disc 38 is driven from the pinion 32 through a gear 41 having toothed and plain segments and a gear 40, rigid with the disc, having one tooth every n teeth truncated. The combinations of the numbers of teeth on the gear 41, the n teeth and the peripheral length of the notch 39 may be arranged such that the disc 31 and pinion 32 are engaged for a predetermined number of revolutions of the shaft 4 before engagement of pinion 32 with disc 30 is permitted.
Patent GB-634718-A (GB)
Title: Improvements in controls for use in hydraulic power-transmission systems
IPC: F01L25/06
Filed: 1946-12-19
Abstract: 634,718. Hydraulic transmission of power; liquid-pressure engines. VICKERS, Inc. Dec. 19, 1946, No. 37356. Convention date, Dec. 21, 1945. [Class 69 (ii)] In a control for use in a hydraulic power-transmission system embodying a pump and a reversible hydraulic motor, the latter is provided with supply and return connections, which comprise a first shiftable valve-element adapted to control the cut-off of return liquid from the motor and a second shiftable valveelement for controlling the reversal of the supply and return connections to the motor, each of the valveelements being shiftable in two independently-controlled steps. Reciprocation of the work-table 200 of a grinding-machine, for example, is effected by the reversible motor 32 supplied with liquid under pressure from an electrically-driven pump 10. The latter draws from and the motor 32 exhausts into a reservoir 14, whilst liquid from the pump 10 flows to the motor 32 through a control and relief valve of the type described in Specification 455,986, a two-way valve 42, which controls the venting of a valve 38 to the reservoir 14, thereby unloading pump 10 to stop the motor 32. A control panel 20 has first and second valve elements 52, slidable in bores 50 and 54, respectively, to control the liquid in conduits 34, 36, which supply the motor 32 through the medium of various ports in the bores 50, 54 and plungers 52, 56. The element 52 is given an initial movement near the end of each motor stroke to implement the initiation of the reversal operation and to decelerate the motor by the engagement of either a dog 202 and an arm 192, or dog 204 and arm 194, depending upon the direction work-table movement, effecting rotation of a lever 188 which has a ball connection with the element 52. The stroke of the latter is completed, due to the pressure liquid acting on one end or the other of the plunger 52, so stopping the motor. The entire movement of the element 56 is brought about by liquid pressure under the control of the element 52. The first part of the movement of the latter, in either direction, arranges for a change-over of the ports in the plunger and bore supplying the motor 32 in order to provide for the reversal of the motor, whilst the final movement of this plunger brings about acceleration of the motor, the degree of which is dependent upon the setting of needlevalves 102 or 104 in the panel 20. In a modification, the initial mechanical actuation of the element 52 may be dispensed with and the complete movement of this plunger caused by liquid under pressure, the source of which may be other than the electrically-driven pump. The panel may also control another work-table.
Patent GB-1434390-A (GB)
Title: Windows
IPC: E06B3/984
Filed: 1973-08-06
Abstract: 1434390 Window frames AZCANO SA 6 Aug 1973 [5 Aug 1972 18 Nov 1972 23 Nov 1972] 37405/73 Heading E1J [Also in Division F2] A window comprises sash and main frames each made from wood stock of the same uniform cross-section. Each frame may be of two different stocks. In Fig. 3, parts 7 and 8 from a first stock are joined to parts 5 and 6 of a second stock. Weatherstrips 13, 14, 15 are provided, and a drip member 23. Mitred corners are joined by right-angled threaded members (17). Cover members (22, Fig. 7. not shown) of metal or plastics may be added. In Fig. 8 (not shown) a single stock is used.
Patent GB-1362710-A (GB)
Title: Band-pass filter arrangement
IPC: H03H9/56
Filed: 1971-08-10
Abstract: 1362710 Filters LICENTIA PATENTVERWALTUNGS GmbH 10 Aug 1971 [12 Aug 1970] 37566/71 Heading H3U In a bandpass filter comprising, mounted on a quartz or piezo-ceramic plate, screen printed, evaporated or galvanized on electrodes, input and output resonators 3, whose electrodes are mounted on both sides of the plate are coupled by a direct path between all adjacent intermediate resonators 4, and also via indirect paths, by-passing some of the intermediate resonators. Changes in the thickness of the plate or provision of additional intermediate resonators such as depicted at 5, 6 modify the coupling in the indirect path, and the configuration is such that attenuation poles on the edges of the bandpass provide very steep skirts (8), Fig. 3 (not shown). The electrodes may be circular or elliptical, and the edges of a quartz plate are parallel to the X, Z crystallographic axes, or a piezo-ceramic plate is prepolarized parallel to an edge. The changes in plate thickness are provided by etching or sandblasting.
Patent GB-994699-A (GB)
Title: Improved fastener
IPC: F25D23/10
Filed: 1961-10-23
Abstract: 994,699. Stud and socket fastenings. ELECTROLUX Ltd. Oct. 23, 1961 [Nov. 19, 1960], No. 37852/61. Heading E2B. [Also in Division F4] A fastener for detachably mounting one part on another comprises a first element 15 in the form of a spring jaw and a second element 14 of trapezoidal cross section, the two elements being engageable by relative movement only in a direction, substantially normal to the trapezoidal cross section but are disengageable by movement in the same direction or in other directions. As shown the fastener is used to attach a ventilator grille 13 to a refrigerator 10 the element 15 including a boss 19 by which it is screwed to the refrigerator top 11, and the element 14 being integral with the grille 13.
Patent GB-1345277-A (GB)
Title: Liquid dielectric compositions comprising halogenated biphenyls
IPC: C07C17/358
Filed: 1971-08-12
Abstract: 1345277 Isomerized halogenated biphenyl MONSANTO CO 12 Aug 1971 [13 Aug 1970] 37889/71 Heading C2C A process for the production of an isomerized halogenated biphenyl comprises (A) contacting an unisomerized mixture of halogenated biphenyls having from 1 to 5 halogen atoms per biphenyl molecule and an average halogen content of from 20 to 60% by weight, with a metal halide isomerization catalyst at a temperature of from 50‹ to 250‹ C. for a period of at least 15 minutes, and (B) recovering with essentially no fractionation a mixture of isomerized halogenated biphenyls having substantially the same average halogen content and relative proportions of mono-, di-, tri-, tetra- and pentahalogenated biphenyls as the unisomerized halogenated biphenyl mixture. In a modification of the process, the product obtained by contacting the unisomerized mixture of chlorinated biphenyls with the metal halide is further chlorinated. Catalysts specified include aluminium chloride optionally in the presence of anhydrous hydrogen chloride. Aluminium bromide and gallium trichloride are also specified. Examples are furnished. The products may be employed as hydraulic fluids or dielectric materials.
Patent GB-954741-A (GB)
Title: Belt-supporting devices for endless conveyors
IPC: B65G39/02
Filed: 1962-10-08
Abstract: 954,741. Rollers for endless conveyer belts. WHITTINGTON ENGINEERING CO. Ltd., and A. D. PATES. Oct. 8, 1962, No. 37996/62. Addition to 910,804. Heading B8A. In Fig. 1, an idler roller for an endless belt conveyer comprises two metal strips 9, 10 wound helically about a frame formed by vanes 6 of substantially trapezoidal shape welded to a tube 14 and having cambered sides 8. Plates 19 are fitted between each adjacent pair of vanes 6 for strengthening purposes and to deflect outwardly material dislodged from the underside of the belt. The pulley shown on the right of Fig. 2 has a keyway 13 for coupling the shaft 5 to a drive. In Figs. 4, 5, the vanes 6 are welded to discs 51 which are notched to locate the vanes before welding.
Patent GB-984409-A (GB)
Title: Lubricant additives and lubricants containing them
IPC: C07D207/412
Filed: 1963-09-26
Abstract: A C30-700 alkenyl or alkyl, e.g. polyisobutenyl, succinic acid or its derivative is reacted with an aliphatic amine having at least one alkyl group of which at least one hydrogen atom has been replaced by a hydroxyl.  The acid or its acid chloride or anhydride may be prepared by, e.g. addition of an olefine, e.g. a polymer of isobutene on to maleic anhydride to form the alkenyl succinic anhydride which may be hydrogenated to give the alkyl succinic anhydride. The amine may be tris-(hydroxymethyl) aminomethane and a number of primary, secondary and tertiary amines are specified. The reaction product may consist of imides and esters, and may be used as an ashless additive in lubricating oil compositions, e.g. containing mineral oil.ALSO:A lubricant composition comprises a minor proportion, e.g 0.1-20% of an ashless additive prepared by reacting a C30- 700 alkenyl or alkyl succinic acid or a derivative thereof with an aliphatic amine having at least one alkyl group of which at least one hydrogen atom has been replaced by a hydroxyl group.  The additive may contain amide, imide and ester groupings.  The lubricating oil, e.g. an extracted paraffinic distillate may be mineral or synthetic and may contain fatty oils, or the additive may be incorporated in a grease.
Patent GB-995711-A (GB)
Title: Improvements relating to the hydrocatalytic treatment of hydrocarbons
IPC: C10G47/18
Filed: 1962-10-01
Abstract: Hydrocarbons boiling above 250 DEG  C. are cracked in the presence of hydrogen and a catalyst comprising a Group 8 metal and a crystalline, decationized, zeolitic alumino-silicate which, in its cationized form, has a pore size of 6-10 <\>rA.  The preferred zeolite is zeolite "Y" converted to its decationized form by ion-exchange to the ammonium form followed by heating to reduce the cation content to below 5% wt.  Platinum, palladium or nickel is introduced, preferably by ion-exchange, to introduce up to 10% wt. and the catalyst is preferably used in the anhydrous form. Suitable conditions are 450-950 DEG  F., 250-3000 p.s.i.g., 0.2-5 vol/vol/hr. and a gas recycle rate of 1,000-20,000 SCF/B. Although up to 0.3% nitrogen and 5% sulphur can be tolerated in the feed, hydrogenation is preferably effected before cracking, e.g. on a molybdenum and nickel and/or cobalt on alumina-silica or alumina-boria at 700-850 DEG  F., 1500-2500 p.s.i.g., 0.5-1.5 vol/vol/hr. and 5,000-15,000 SCF/B.
Patent GB-871308-A (GB)
Title: Improvements in or relating to disc brakes
Inventor: CHOVINGS LESLIE CYRIL
IPC: F16D55/228
Filed: 1956-12-13
Abstract: 871,308. Clamps. AUTOMOTIVE PRODUCTS CO. Ltd. Dec. 13, 1957 [Dec. 13, 1956; Feb. 1, 1957], Nos. 38120/56 and 3639/57. Class 44. [Also in Group XXXIV] A fluid-tight closure at the outer end of a cylinder of a spot-type disc brake (Group XXXIV) is retained in the cylinder 14 by a resilient ring 19 engaging in a groove 21 in the wall of the cylinder and is prevented from moving inwardly by clamping means 23. The clamping means consists of a V-shaped member adapted to be bolted at its apex to the centre of the closure member 17 and the ends of the clamping means are bent to form hooks 24 which enter holes in radially inwardly projecting tabs 22 of the ring 19.
Patent GB-1130641-A (GB)
Title: Improvements in circuit breaker assembly
IPC: H01H71/56
Filed: 1966-08-26
Abstract: 1,130,641. Automatic circuit-breakers. GENERAL ELECTRIC CO. 26 Aug., 1966 [30 Aug., 1965], No. 38327/66. Heading H1N. A circuit-breaker has a toggle linkage comprising links 40, 42, connecting the pivoted contact arm assembly 32 and a releasable member 14 and biased toward straightened condition by tension springs 46 (only one shown) attached to the knee pin 44 of the linkage and a fixed support pin 48 and resetting means comprising a V-shaped pivoted lever 74 with a cam follower 86 engaging a resetting cam 88 rotatable by a handle 96 on the cam-shaft 90. Cam 88 is rotatable in one direction only by a ratchet and pawl type stepping mechanism (Fig. 6B, not shown). The circuit-breaker is tripped manually, by rod 50, or thermally, by bi-metallic strip 54, or electromagnetically, by solenoid 60 and armature 68. Releasable member 14 is normally latched by latch member 20, and the resetting lever 74 acts on the knee pin 44 of the toggle linkage.
Patent GB-1004983-A (GB)
Title: Improvements relating to frequency selective filters
Inventor: LANE PETER JOHN
IPC: H03H9/48
Filed: 1960-11-08
Abstract: 1,004,983. Electro-mechanical filters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 23, 1961 [Nov. 8, 1960], No. 38338/60. Heading H3U. A tuned reed frequency selective filter arrangement comprises a tuned reed 1 clamped to or otherwise securely pressed against a massive block 6 of vibration transmitting material, e.g. of brass, means 3, 5a, 5b for electromagnetically vibrating the reed, and a piezoelectric element 10 arranged to receive vibration transmitted to it through the block 6 from the reed to produce an electrical output of corresponding frequency. The block 6 is supported in a cantilever manner on a distance-piece 9, e.g. of rubber, effecting damping, on a base-block 7 on a pad 8 of foam or cellular plastic. The piezo-electric element 10 is in the form of a probe clamped at one end in a block 11 and extending in a cantilever manner to be coupled to the block 6 directly or by a spring member 12. The piezo-electric element can be of lead zirconate titanate with a multimorph structure. Rochelle salt is also referred to. Output connections 13a, 13b from the piezo-electric element are connected to output terminals 14a, 14b on the base-block 7. The reed 1 is of magnetic material, e.g. Radiometal, extending through a bobbin 2 carrying an input winding 3 and two permanent magnets 5a, 5b, respectively presenting N and S poles towards the reed 1.
Patent GB-1155346-A (GB)
Title: Re-Spooling Machine.
Inventor: KURSINCZKY WILLIAM
IPC: B65H54/28
Filed: 1967-08-21
Abstract: 1,155,346. Electromagnetic clutch and brake control; disc brakes; linkwork. W. KURSINCZKY. 21 Aug., 1967, No. 38360/67. Headings F2C, F2E, F2K and F2L. [Also in Division D1] A combined rotary and reciprocatory drive for the shaft 30 of a wire spooling drum 32 is taken from a main shaft 74 driven by a motor 34 and includes an electromagnetic clutch-brake unit 172 for regulating the drive torque. The rotary drive is obtained from a belt 60 between pulleys 62, 64, while the reciprocating drive is obtained from a belt 78 between pulleys 76, 80, a variable reduction gear 84, and a belt 66 between pulleys 70, 72 driving a shaft 86 mounted parallel to driving shaft 30. Shaft 86 is formed with oppositely inclined helical grooves 92, 94 operating a reciprocating sleeve 96 at one end of a lever 100, the other end of which has a pin and slot connection 114, 116 with an operating sleeve 106 for shaft 30. The lever 100 has a pivot block 98 engaging a nut (124) traversable along a cross shaft 118 by a hand wheel 56 to vary the travel of shaft 30, the speed of shaft 86 being varied by adjustment of the gear unit 84. The clutch-brake unit 172, Fig. 8, includes a drive pulley 152 connected to shaft 74 by a splined friction disc 184 carrying magnetic elements 186 and engageable against radial release springs 192 with a member 190 formed with cooling fins 222 and having an internal conical friction surface engaging a correspondingly coned member 194 keyed to shaft 74. The brake unit is of similar construction, the fixed member 206 being engageable by a friction disc 216 carrying release springs 220 and splined to a coned member 218 engageable with an inner coned member 202 keyed to shaft 74. The supply of current to the clutch and brake may be controlled manually or automatically.