baber/WOPTO huggingface dataset:
Patent GB-1005305-A (GB)
Title: Improvements in and relating to tunnel diode circuit arrangements
IPC: H03K19/10
Filed: 1963-10-25
Abstract: 1,005,305. Binary adders. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 25, 1963 [Oct. 29, 1962], No. 42216/63. Heading G4A. [Also in Division H3] A circuit arrangement, Fig. 1, comprises first pair of tunnel diodes 10, 11 with alternating supply voltages being applied across them in antiphase, connected to an inductor 20, the junction point being connected to a second pair of tunnel diodes 12, 13 which have further alternating supply voltages applied to them in antiphase, the further supply voltages having a frequency which is an even fraction of the frequency of the supply to the first pair of diodes. Positive and negative control pulses 30, 31, Fig. 2, from control source 16 produce positive and negative signals 32, 35 at junction 4, the pulses being followed by negative and positive pulses 33, 36 due to the inductance 20 and resistor 21. Output pulses 40 are then produced at load 17 whenever the supply pulses 28 are applied to the diodes 12, 13, the polarity of these pulses being determined by the polarity of the pulses 32, 35. In the arrangement of Fig. 3, which functions as an inverter, three pairs of diodes A 1 , A 2 , B 1 , B 2 , C 1 , C 2  are coupled together. The supply pulses of the pairs A 1 , A 2  and C 1 , C 2  have a phase difference between them of 120 degrees, and their frequency is half that of the supply to the pair B 1 , B 2 . Positive control pulses arriving at terminal 50 in coincidence with a supply pulse is passed via the diode pair B 1 , B 2  to the inductor 20 to produce a negative output at terminal 51. The arrangement of Fig. 3 may form part of a logic circuit employing majority logic as shown in Fig. 5. In this circuit, which functions as a binary adder, the supply to the diode pairs 70, 71, 72 and that to the pair 78 have a phase difference of 120 degrees and their frequency is twice that of the supplies to the pairs 73 ... 77. The inductor 20 and resistor 21 produce inversion. The supply having double the frequency may be produced by a pair of diodes connected as shown in Fig. 6. Alternatively each of the diodes 12, 13, B 1 , B 2  or 73 to 77 may be replaced by a pair of diodes connected in this manner.
Patent GB-1523295-A (GB)
Title: Method and apparatus for inspecting stratified material
IPC: G01N3/00
Filed: 1975-10-15
Abstract: 1523295 Testing bonds between layers of material SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 15 Oct 1975 42225/75 Heading G1G and G1S In testing the bond between layers of a stratified material by observing its response to vibrations, the area of the material under test is subjected to a reduced pressure. Either the whole test piece (6) may be enclosed in a vacuum chamber (1), Fig. 1  (not shown) or a local vacuum may be created around the test probe 35 within a chamber 28, having resilient sealing means, e.g. a relatively soft foamed rubber layer 33 with semi-closed cells on a more rigid layer 34 of foamed rubber with closed cells. The probe comprises a Piezo-electric driver 13 and Piezo-electric pick-up 16, mild steel 14 and polymethylmethacrylate 15 and is supported on parallel linkages, counterbalanced by a weight 36, a spring 37 providing a constant static contact force, independent of orientation. The amplitude or phase of the picked up signals may be measured. The invention may be used to test polyurethane foam linings of tanks and light-weight panels of sandwich construction.
Patent GB-1502845-A (GB)
Title: Retaining conductor bars in winding slots of dynamoelectric machine rotors or stators
IPC: H02K3/48
Filed: 1975-10-17
Abstract: 1502845 Retaining conductor bars in machine winding slots ALLIS-CHALMERS CORP 17 Oct 1975 [27 Nov 1974] 42715/75 Heading H2A Conductor bars 18 are retained in core slots 14 of a rotor (or stator) core 13 by U-shaped slot liners 6 having longitudinally extending ribs of resilient absorbent material 11, 12 engaged with grooves 16, 17, 19 provided in the walls of the slots 14 and in the sides of the bars 18, the ribs being impregnated with a thermosetting material which is heated to produce curing and hardening when the bars 18 and liners 6 are in position.
Patent GB-1500570-A (GB)
Title: Chain lock
IPC: F16G15/02
Filed: 1975-10-17
Abstract: 1500570 Chain couplings I D THEILE 17 Oct 1975 [19 Oct 1974 18 Jan 1975] 42730/75 Heading F2Q A chain lock comprises two arms 1 with curved ends, each arm having at one end 2 a locking element 4 which is undercut in the form of an anchor and at the other end 3 a corresponding recess 7 so that the two arms 1 can be pushed into one another in the longitudinal direction of the chain lock to produce a form-locking connection, the curved ends of the arms complementing each other to form the two arcs of a chain link, and each locking element 4 having an internal bulge 15 extending the whole height of the locking element to form the internal curvature of the arc on that side of the chain link. In a modification, shown in Fig. 3, each bulge 15 is situated inwardly of a recess 7.
Patent GB-1064638-A (GB)
Title: Manhole cover support
IPC: B01J8/28
Filed: 1965-10-08
Abstract: 1,064,638. Manhole covers. H. M. BOWMAN. Oct. 8, 1965, No. 42731/65. Heading E1G. A support for vertically adjusting a manhole cover comprises a housing bearing a plurality of vertically spaced inwardly directed ledges 20 co-operating with an elevating member 21 having a plurality of sections retained with the housing in an expanded relationship. The ledges in the member 20, which may be integral with, or rest upon, the housing 10 are formed in arcuate members expanded by chordal right and left hand threaded screws. The elevating member 21 may be planar at the top or have a road surface material retaining flange 21. In a modification, in which the support is installed initially, the ledges are formed in the housing 10 and the elevatating member has only external complementary ledges expanded into those of the housing.
Patent GB-1162352-A (GB)
Title: Improvements in or relating to Printing Machine Sheet Transfer Mechanism
Inventor: WEISBACH GUNTER
IPC: B65H9/06
Filed: 1966-09-27
Abstract: 1,162,352. Feeding sheets. DRUCKMASCHINENWERK PLANETA VEB. 27 Sept., 1966, No. 43010/66. Heading B8R. In the sheet feed device claimed in Claim 1 of Specification 1,087,885 sheet feed stops 30 are fixed on arms 31 mounted on a rotatable shaft 33, whereby the feed stops are pivotable along an arcuate path, Fig. 3, away from the table before a sheet is removed from the table by the gripper mechanism and towards the table after the sheet has been removed, and wherein movement of said adjustment means simultaneously rotates the rotatable shaft 33 about an axis offset from its own axis so as to displace said arcuate path perpendicularly of itself. The adjustment means comprises eccentric bushes in which the shaft 33 is mounted and levers pivotably connected at one of their ends to the bushes and at their other ends eccentrically to a pivot pin 8, whereby rotation of the pin 8 causes the bushes to rotate.
Patent GB-1359529-A (GB)
Title: Solid-fuel rocket engines
IPC: F42B1/00
Filed: 1971-09-15
Abstract: 1359529 Propellants FRANCE ARMED FORCES MINISTER OF 15 Sept 1971 43051/71 Heading F3A A block of internally burning propellant comprises a fast-burning propergol in intimate contact, along a generally star-shaped interface G, with a surrounding slow-burning propergol, the number of limbs constituting the interface being at least eight and the number of limbs of a generally star-shaped contour C o  defining a passage extending longitudinally through the fast burning propellant being at least four. The combustion front C k  in the burning propergol assumes the form Cg as it passes through the interface G and reaches the external periphery C e  of the block in the form of a contour C f . The limbs of the interface G have sides constituted by straight lines or hyperbolas and ends defined by portions of circles, Descartes Ovals and ellipses. The cross-sectional area of the passage defined by the contour C o  may increase in discrete steps along the length of the block in accordance with a geometrical progression.
Patent GB-1084790-A (GB)
Title: Improvements in or relating to air cushion vehicles
Inventor: HARDY DEREK JAMES
IPC: B60V1/16
Filed: 1964-10-22
Abstract: 1,084,790. Air cushion vehicles. BRITISH HOVERCRAFT CORPORATION Ltd. Oct. 20, 1965 [Oct. 22, 1964], No. 43070/64. Heading B7K. A skirt for an air cushion vehicle comprising inner and outer walls 5, 4 attached at their upper ends to the body 2 and connected at their lower ends to form jet-forming nozzles 8, is stabilized by internal tie members 9, 12, 14 which prevent the walls of the skirt from ballooning and thereby maintain an evenhemline and to prevent the nozzles 8 from being deviated from their optimum discharge positions. A means of attaching the ties to the skirt walls is described.
Patent GB-1095108-A (GB)
Title: Press for separating liquids from solids
IPC: B30B9/20
Filed: 1966-09-27
Abstract: 1,095,108. Press for separating liquids from solids. AMERICAN FACTORS ASSOCIATES, Ltd. Sept. 27, 1966 [Oct. 27, 1965], No. 43108/66. Heading BID. Liquids are expressed from wet solids, such as bagasse, by passage between the conical surfaces of two rotating discs 15, 40, whose axes intersect at a point 32 which forms the centre of part-spherical surfaces 31, 35 which cooperate with the discs to form a compression chamber. Material is fed between the discs from inlet 78 where their separation is greatest and is carried down and up to the radial 'nip-line' where they approach closest. Surfaces 31 and 35 are formed by members 30, 33 rotating with disc 15 while a fixed wall 62 cooperates with disc 40. Solids are removed from the discs by fixed scrapers above the 'nipline' and discharged (90). Discs 15, 40 are carried respectively on a fixed frame 11 and a frame 42, pivoted to frame 11 for movement about a vertical axis (44) through point 32 by a hydraulic piston-cyclinder motor (57, 58), (Fig. 2, not shown). The discs 15, 40 may be impervious and the compression chamber then has a liquid outlet, or the discs are perforated (Figs. 5, 6, not shown) with spirally extending support ribs 25 behind their conical surfaces extending against the direction of rotation to guide the filtrate down into chamber (85), (Fig. 4, not shown), which is emptied by a pump. The discs are driven in one direction by respective motors (21) through gears. Fig. 4 illustrates how the material is delivered to inlet 78 by a worm (71) which may operate in a perforate housing having a conical portion (73) to effect preliminary separation. A line C joining the points of thrust of the bearings of shafts carrying the discs passing through the centre of gravity D of material passing through the 'nip-line'.
Patent GB-1277526-A (GB)
Title: Suspension assembly
Inventor: HARTMANN MANFRED
IPC: E04B9/18
Filed: 1970-09-10
Abstract: 1277526 Brackets HILTI A G 10 Sept 1970 [17 Oct 1969] 43307/70 Heading A4B [Also in Division E2] A suspension assembly comprises a mounting rail 1 of slotted box section providing a base web 1a from which project side walls 1b having respective aligned and spaced-apart supporting webs 1c, the space between which serves as an entry slot into the mounting rail, and a hanger 2 engaged in said rail, said hanger serving as, or being adapted for attachment thereto of, a suspension device such as a pipe support, pipe clamp or cable clamp and comprising a tubular mounting head 3 projecting into the rail by way of the entry slot and provided with lateral slots 6, into which the supporting webs project, permitting twisting of the hanger between a secured position with the head extending obliquely to the longitudinal direction of the rail and substantially from side wall to side wall thereof, and a released position wherein the head registers with the slot and can be withdrawn therethrough, said head accommodating a resilient element 5, in the form of an elastomeric body, which, in the secured position of the hanger, presses tightly against the side walls or the supporting webs of the mounting rail. In the construction shown the slots are stepped so that when the head has been twisted through the 90 degrees and lowered shoulders 6a of the slots engage opposite edges of the webs of the rail and prevent the head being twisted back. The elastomeric body is either long enough to engage the side walls of the rail or as shown is only long engough to engage the edges of the webs; in either case however since it is compressed it prevents movement of the head along the rail. The elastomeric body 5 is located in the head by means of ribs 5a of the body which engage in slot 7 in the side wall 3a of the head. The open ends of the head are obliquely bevelled and parallel to one another so that the head can be twisted through the 90 degrees after it has been introduced into the rail between the supporting webs 13 and when the edges 3bbutt positively against the side walls 1b of the rail 1 further rotation beyond 90 degrees is prevented. As shown the supporting element has two legs 4a depending from the head with slots for engagement by a cable clamp or pipe clamp. However a cable clamp can be integrally connected to the legs.
Patent GB-1116118-A (GB)
Title: Process for the preparation of pyridoxine
IPC: C07D213/67
Filed: 1966-09-28
Abstract: Pyridoxine is obtained by contacting esters or the anhydride of 2-methyl-3-hydroxy-4,5-bis (carboxy) pyridine with an alkaline earth borohydride in tetrahydrofuran at from 65 DEG  C. to 150 DEG  C. In examples the starting materials are 2-methyl - 3 - hydroxy - 4,5 - bis (carbethoxy) pyridine, 2 - methyl - 3 - hydroxy - 4, 5 - bis-(carbomethoxy) pyridine, 2 - methyl - 3 - hydroxy - 4,5 - bis (carbopropoxy)- pyridine and the anhydride of 2-methyl-3-hydroxy-4,5-bis (carboxy) pyridine, and they are contacted in tetrahydrofuran with calcium borohydride, magnesium borohydride, strontium borohydride and barium borohydride, to obtain pyridoxine hydrochloride.
Patent GB-1118638-A (GB)
Title: Indexable and reversible cutting inserts
IPC: B23B27/14
Filed: 1965-10-13
Abstract: 1,118,638. Cutting tool tips. WILLEY S CARBIDE TOOL CO. 13 Oct., 1965 [13 Oct., 1964], No. 43414/65. Heading B3B. An indexible and reversible cutting insert for a tool holder has a plurality of cutting edges having a cross-section angle less than 90 degrees to enable a workpiece to be cut with a negative top rake and a positive side rake. The insert has two parallel faces 62, 64 with trapezoidal side faces 66, 68, 70 and 72 at angles other than 90 degrees to the said parallel faces 62, 64 each side face together with one adjacent side face and with the top and bottom faces forming a pair of cutting tip. The parallel faces 62, 64 are polygonal with an even number of sides and the insert may be a right-hand or left-hand cutter.
Patent GB-1254949-A (GB)
Title: Method of treating calcium metasilicate
Inventor: ROSENBERG ELLIOT EDWIN
IPC: D21H17/67
Filed: 1969-09-02
Abstract: 1,254,949. Pigments. E. E. ROSENBERG. 2 Sept., 1969 [10 Oct., 1968], No. 43436/69. Heading C4A. [Also in Division C1] A filler or pigment material consisting essentially of e.g. agglomerates of calcium sulphate particles, silica gel and unreacted wollastonite (a calcium metasilicate) particles and which is produced by a process elsewhere described (see Division C1) may have mixed therewith 0À5- 90% (based on the weight of the original feed wollastonite) of e.g. clay, TiO 2 , magnesium or calcium orthosilicate, or a silica.
Patent GB-1139501-A (GB)
Title: Improvements in or relating to gas permeable diaphragms
Inventor: HART JOHN CHARLES HUMPHREYS
IPC: B01D71/02
Filed: 1964-10-27
Abstract: 1,139,501. Fuel cells. ENERGY CONVERSION Ltd. 1 Dec., 1965 [27 Oct., 1964], No. 43737/64. Heading H1B. [Also in Division. B1, B2 and C7] A gas-permeable diaphragm for providing pure hydrogen from reformed hydrocarbon gas for use with an electrode of a fuel cell, comprises a non-porous gas-permeable metallic member, e.g. Pd metal or Pd-Ag alloy foil 0À2mil. or less thick and a non-porous sheet of polymeric material, e.g. silicone elastomer or polyamide film between 0À01 and 1 mil. thick adhering face to face, the polymeric sheet being permeable to at least the same gas as the metallic member. The metallic member may be sandwiched between two sheets of polymeric material. The diaphragm may be made by depositing the metallic member as a layer on the polymeric material, either chemically by activating the material with a reducing agent and then coating with a solution comprising a salt of the metal of the member, or by electro-deposition; or the member may be contacted with a solution from which the polymeric material is deposited; or the material may be adhered to the member by heat and/or pressure.
Patent GB-1007015-A (GB)
Title: Stabilisation of polymers
IPC: C08K5/55
Filed: 1961-12-11
Abstract: A polymer of an olefin is stabilized with an organic boron compound, e.g. a boronic acid, a trimeric boroxole, a derivative of a trimeric boroxole with a diamine, a dihydroxy acid or a dimercaptan, an ester of a boronic acid, a borinic acid, anhydride or ester, a thioborinic acid ester, a trihydrocarbon or triheterocyclic boron compound, or a dihydrocarbon or diheterocyclic boron halogenide or hydride.  The boron compound may be in the form of a complex with a nitrogen base. Optional ingredients include esters of thiocarboxylic acids, alkaline earth and other metal salts, phenolic antioxidants, epoxy compounds and citrates.
Patent GB-1495054-A (GB)
Title: Electric cigar lighter
IPC: F23Q7/00
Filed: 1975-10-28
Abstract: 1495054 Automobile cigar lighters SCHOELLER & CO ELEKTROTECHNISCHE FABRIK GmbH & CO 28 Oct 1975 [28 April 1975 (2)] 44270/75 Heading F4F An electric cigar lighter for use in automotive vehicles comprises an incandescent coil 7, a support 1 for the coil, a handle, and a connector sleeve 24 enclosing the coil and support, the sleeve being insertable in a socket, a guide disc 10 located between the coil and the support and having earth contact tongues 11, a bolt 3 for the handle retained in the support and a cap 20 with stop projection for engagement with the threads on the bolt. Bolt 3 is retained in the support by a pin 5 and coil 7 is located in a screwed sleeve 6 by a pin 8. Cap 20 is urged upwardly by a spring 22 which is supported by a ring 23 resting on tongues 25 on sleeve 24, which are located in recesses 26 in the support 1. Connector sleeve 24 has a web to ensure a tight fit in the socket.
Patent GB-1046358-A (GB)
Title: Print apparatus
IPC: B41L19/00
Filed: 1964-10-30
Abstract: 1,046,358. Printing-machines. FARRING- TON BUSINESS MACHINES CORPORATION. Oct. 30, 1964 [Oct. 31, 1963], No. 44462/64. Heading B6C. Apparatus suitable for printing on bales, slips &c. comprises a printing bed 37 having a surface 37a adapted to support a relief printing plate such as a credit card c, an impression roller 34 mounted on a central shaft provided at its ends with roller bearings, Fig. 3 (not shown), a pair of guide plates such as 41, 43 for guiding each roller bearing in a printing path parallel to the surface 37a, and guide plates such as 41, 42, 43 for guiding each bearing in a return tripped path spaced laterally from the printing path. The apparatus includes a flange such as 51 to guide each roller bearing outwardly from the end of the printing stroke to the start of the return stroke, a flange such as 53 to guide each bearing inwardly from the end of the return stroke to the start of the printing stroke, and actuating means including a yoke 30-32 which engages the ends of the roller shaft and moves the roller through the printing cycle under the control of a motor 21. In operation a sales form F is inserted, and a button 58 is depressed until a lever arm 26 moves to close a detector switch 56 and maintain the motor energized so that the arm 26, via a shaft 22, a crank 22a and a slide 23, moves the roller through a complete cycle. The printing pressure may be adjusted by raising or lowering each plate such as 43 within a slotted guide. A date wheel, Fig. 3 (not shown), may be provided additionally to print on the form F during the cycle. Inking apparatus.-The platen roller may be replaced by an ink-impregnated roller.
Patent GB-1190298-A (GB)
Title: Centrifugal Separator
Inventor: SEDIVY OTOMAR
IPC: B04C5/22
Filed: 1968-09-19
Abstract: 1,190,298. Centrifugal separators. O. SEDIVY and J. NOLL. 19 Sept., 1968, No. 44491/  68. Heading B2P. In a vortex separator for removing impurities from paper-stock suspensions, clogging of the impurities discharge outlet, outflow of large amounts of acceptable stock and suction of air are prevented by a conical body 2 mounted on a spring 6, permitting its transverse and longitudinal oscillation. The body 2 may be lifted or lowered by means of thread 3 for altering the width of the annular space delimited by the wall 4 of the separator and the edge 5 of the body.
Patent GB-1286623-A (GB)
Title: Garbage disposal
Inventor: BOWLER HAROLD VICTOR WILLIAM
IPC: B65F1/00
Filed: 1968-09-19
Abstract: 1286623 Sack holder GARBINS Ltd 5 Sept 1969 [19 Sept 1968] 44590/68 Heading A4A [Also in Division B8] A holder for sacks has a semi-circular segmented rim 10 and a lid 14 hinged to a backing plate 1 at their flat edges by means of pins 18 inserted through bosses 8 on the back plate, bosses 13 on the rim, and cylindrical section 15 on the lid. An extensible band 29 of flat rectangular section passes around the periphery of the rim and thus supports the sack. Its' respective ends are attached to the back plate by a key-hole slot (23), Figs.5 and 6 (not shown), and a hasp 24 and hook 33 combination. The lid is constructed with a peripheral flange (20) overlining and extending downwardly around the periphery of the rim, Fig.7 (not shown), and can be held open by engagement with cam surfaces (21, 22) on bosses 8.
Patent GB-446125-A (GB)
Abstract: 446,125. Indicating vibrations. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Jan. 31, 1935, No. 3205. Convention date, Feb. 1, 1934. [Class 106 (iv)] A vibration indicator comprises a needle which is placed in contact with the vibrating body and which is mounted to move longitudinally, the needle being connected to a mirror mounted on knife edges and reflecting a beam of light on to a scale graduated to show the intensity of the vibrations. The needle 23 is attached to a rod 24 and is brought into contact with the vibrating body after a cap 22 has been removed from the apparatus. The rod is supported by two springs 30, 31 so that it can reciprocate longitudinally, and carries at its inner end a member 34 provided with bearings 35 for knife edges 38 on a plate 36a supporting a mirror 41. The plate has upper knife edges 37 supported in bearings 39 in a fixed member 40 pressed down by a spring 43. Light from a lamp 9 is reflected from the vibrating mirror 41 on to a scale 13, the extent of the light line on this scale being a measure of the intensitv of the vibrations. The lamp is supplied with current from dry batteries 51, the circuit being closed by a button 55. The light passes through a lens 12 and the bulb may be rotated, to adjust the filament position, by a worm 49 which engages a worm wheel secured to the bulb mounting. A spare bulb 17 is carried in the apparatus.
Patent GB-1080989-A (GB)
Title: Agricultural fungicidal compositions
IPC: A01N31/04
Filed: 1964-11-02
Abstract: Fungicidal compositions comprise pentachlorobenzyl alcohol or an aliphatic monocarboxylic acid ester thereof and a carrier. The compositions may be in the form of liquids, dusts, granules and wettable powders.