baber/WOPTO huggingface dataset:
Patent GB-1162572-A (GB)
Title: Trailer Transmission
Inventor: STEIN GARY
IPC: B62D59/02
Filed: 1966-12-23
Abstract: 1,162,572. Driving trailer wheels; driving auxiliary apparatus. APPLIED POWER INDUSTRIES Inc. 23 Dec., 1966, No. 57795/66. Headings B7D and B7H. [Also in Division F2] In a tractor-trailer vehicle having the tractor engine connected to a tractor axle through a mechanical transmission and to a trailer axle through an hydraulic transmission, the trailer axle is driven only when the mechanical transmission is operating at its lowest output ratio, and the hydraulic transmission ratio is such that the trailer axle only assists in propelling the vehicle when the tractor wheels begin to slip. A semi-trailer 12 is connected by a fifth wheel coupling 14 to a tractor 10 and includes an axle 28 driven from an hydraulic motor 30 through mechanical gearing including a clutch 32. The output of an hydraulic pump 38 driven by the tractor engine is directed by a valve 44 either to the motor 30 through a circuit including a directional control valve 58 and an excesspressure relief system 61, or to a circuit which supplies a motor 48 for driving a concrete mixing drum 56 and includes a reversing valve 54 and an excess-pressure relief system 55. Pneumatic actuators 33, 70, 76 for the clutch 32 and valves 44, 58 are supplied from a compressor 60 through solenoid valves 62, 64, 66, 68 energized through a control circuit including a master switch 92, a switch 94 on the clutch pedal 96 of the tractor, and switches 99, 100, 102, 104, 106 actuated by levers 98, 36 controlling the mechanical transmission. Closure of switch 92 actuates the valve 44 to divert the pump output from the mixer motor 48 to the valve 58, whereupon selection of " low-low " or " low-reverse " and release of the clutch pedal 96 results in engagement of the clutch 30 and shifting of the valve 58 into the position wherein the motor 30 drives the axle 28 in the appropriate direction. The distribution of load on the tractor and trailer axles is adjustable by varying the length of the semi-trailer chassis, telescoping chassis portions 16, 18 being adjustably connected on each side by a pin 26 engaging a series of apertures 20.
Patent GB-1245996-A (GB)
Title: Improvements in the production of aliphatic amines
IPC: B01J23/06
Filed: 1968-12-06
Abstract: 1,245,996. Aliphatic amines. HENKEL & CIE G.m.b.H. 6 Dec., 1968 [8 Dec., 1967], No. 57943/68. Heading C2C. Amines of the general formula R 1 R 2 R 3 N in which R 1  is a saturated or unsaturated C 6-22  aliphatic radical, R 2  and R 3  are H or C 1-4  alkyl radicals are obtained by reacting complete or part a fatty acid glyceride of general formula in which R 4  is a fatty acid residue having from 6-22 C atoms or H, with the proviso that at least one R 4  residue is a fatty acid residue with ammonia or an amine of the general formula R 2 R 3 NH at a temperature of 200-400 C. and a hydrogen pressure of 50-400 atmospheres in the presence of an oxidic Zn-Al or Zn-Cr catalyst in lump form. The process is preferably carried out continuously at 200-350 C. and a pressure of 100-300 atmospheres. In the examples coconut oil, hydrogenated beef tallow and unhardened beef tallow are reacted with NH 3 , methylamine or dimethylamine in the presence of hydrogen over Zn-Al oxide or Zn-Cr oxide catalysts.
Patent GB-1364159-A (GB)
Title: Metal penetrating staples
IPC: F16B15/06
Filed: 1972-12-15
Abstract: 1364159 Staples; nails ILLINOIS TOOL WORKS Inc 22 Feb 1973 [29 Feb 1972] 8777/73 Heading F2H A resilient sheet-metal staple 10 capable of penetrating metal has two legs 14 extending from a crown or head 12, each leg having an entering point 22 formed as the apex between camming surfaces 18, 20 of unequal lengths, one edge 24 of each leg including means 26, 27 for looking the staple in a workpiece, the longer camming surface 18 being on the same edge of the leg as the locking means 26 or 27. In Figs. 2, 3 the crown 12 and legs 14 form a single arcuate surface, with lugs 40 extending from the ends of the crown. Locking teeth 26, 27 on the inner edges of the legs 14 are of ratchet form. The point 22 of each leg is offset from its centre line. In Figs. 4, 6 the legs 14a are bent out of the plane of the crown 12a, which is wider than the legs. The longer camming surface 18a of each leg extends to a shoulder 34, a longitudinal cut 38 allowing the projecting tooth portion 26a, 27a below the shoulder 34 to be bent out of the plane of the leg. The tooth 26a on one leg projects in the opposite direction to the tooth 27a on the other leg so that as the staple is driven through a workpiece the legs are resiliently deflected in opposite directions (dotted lines in Fig. 4) until the shoulders 34 pass out of the other side of the workpiece, the legs then springing back into their locking position. A modification, Fig. 10, has teeth 26b, 27b projecting from opposite edges of respective legs 14b.
Patent GB-1429026-A (GB)
Title: Laser generator
IPC: H01S3/123
Filed: 1973-12-14
Abstract: 1429026 Lasers COMPAGNIE GENERALE D'ELECTRICITE 14 Dec 1973 [3 Jan 1973] 58159/73 Heading H1C In a laser Q-switched by a rotating mirror, undue prolongation of each output pulse due to off-axis radiation in a solid, e.g. Nd-glass rod, active medium is prevented by eliminating the total internal reflection obtained at the end circumferential surfaces. As shown a laser rod 5 pumped by a flashlamp 11 and positioned between fixed and rotating resonator mirrors 2, 3 has its circumferential end surfaces 9, 10 ground so as to diffuse off-axis radiation 30. The remaining major circumferential surface 5 of the rod, which may be mechanically strengthened by surface treatment, reflects off-axis radiation of the normal manner. The ground circumferential end surfaces of the rod engage end plates 12, 13 supporting a reflector 14.
Patent GB-1427840-A (GB)
Title: Impact-proof watch case
IPC: G04B37/05
Filed: 1973-12-20
Abstract: 1427840 Watches DAINI SEIKOSHA KK 20 Dec 1973 [26 Dec 1972] 59152/73 Heading G3T In a watch case having a body 2 closed by a back 3 and a glass and bezel 10, 11, a first shock absorbing means 7 spaces a dial support ring 5 from a step portion 2a of the body, and a second shock absorbing means 8 spaces a casing ring 4 from the body 2 and/or the back 3. As shown the first shock absorbing means 7 is a ring; it may have various cross-sections and be integral with the support ring 5, Fig. 5 (not shown) or clamped between the ring 5 and dial 6, Fig. 2 (not shown). The ring 7 may also be a wavy spring or replaced by several coil springs Fig. 3 (not shown). The second shock absorbing means 8 may be integral with the casing ring 4, Fig. 7 (not shown), or may be a separate ring.
Patent GB-597243-A (GB)
Abstract: 597,243. Electromagnetic ammeters and voltmeters. BUTLER, Ltd., H., and BUTLER, H. April 28, 1945, No. 10756. [Class 37] In an electrical measuring instrument of the moving coil type a firm anchorage for the pivot pins is provided by extending the pins through the thickness of the wall of the bobbin. In the instrument shown, Figs. 1, 3 and 4, a cylindrical core 12 mounted on magnet 11 is provided with spring-loaded jewel bearings (Fig. 2, not shown) on which is pivoted a coil bobbin 14, 18 by means of pivot pins 15 fitted tightly within inwardly projecting pivot housings 17 formed integrally with the wall of the bobbin frame. Mounted on each of the pins 15 on the outer side of the winding 18 is an insulating washer 19 having projecting tabs 20 which are bent over the edges of the bobbins frame 14 and an insulating ring 21 over which is placed on one side of the frame 14 a cranked indicating arm 22 locked to the head 24 of a balancing arm 23 and on the other side a metal fixing plate 30. The ends of the winding 18 are connected respectively to the head 24 and plate 33 which have lugs 34, 31 respectively to which are secured the ends of the hair springs. In a modification, Fig. 5 (not shown), the pivot pins are reversed for external mounting.
Patent GB-1298476-A (GB)
Title: Tampon manufacture
Inventor: JONES JOHN LESLIE
IPC: A61F13/20
Filed: 1969-12-09
Abstract: 1298476 Tampons KIMBERLY - CLARK CORP 9 Dec 1969 60115/69 Heading A5R A tampon comprises a dry radially-compressed regenerated cellulose cylinder having a withdrawal string extending from one end and coaxially permanently bonded therein and may be formed by inserting a multiplicity of parallel, regularly spaced thermally bondable strings 66 perpendicularly through one face of a pair of parallel faces of a billet of fire-pore regenerated sponge, heating the strings and billet to a fusion temperature, cutting the billet simultaneously into a plurality of prisms or cylinders 74 each having a coaxial string 66, and then radially compressing each prism or cylinder to form a compressed cylindrical tampon. The tampons may be formed using apparatus comprising a rotary table carrying a withdrawal-string hopper and a sponge billet which are indexed from a first station at which the strings, each passing through a respective insertion needle, are pushed into the sponge billet by simultaneously pushing all the needles through the billet, to a second station at which the billet is clamped between electrodes and the billet and strings are heated dielectrically to form the bonds. The withdrawal strings may be preheated to below the bonding temperature prior to reaching the second station. In addition, the. billet may be heated to above the bonding temperature prior to string insertion, the dielectric heating step at the second station then being omitted. On reaching a third station the sponge billet is forced through a cutting die 70 to form cylindrical or hexagonalprism-shaped bodies which pass into rubber tubes 73 whilst a space outside the tubes is evacuated. This space is then pressurised to compress radially the tampons. The tampons may alternatively be compressed by forcing them through frusto-conical passages, to the interior of which a vacuum is applied, following the cutting die. The tampons so formed can be assembled into two-part telescopic applicator tubes 52, 86 by subsequently evacuating an insertion means 69 and the radial compressor 68 together and rotation of rods in openings 80 so that the tampons drop into outer tubes 86; rods 57 being rotated so that inner, plunger tubes 52 drop along the strings 66 onto the top face of the tampons in tubes 86. The strings 66 are then cut simultaneously by blades 96. The withdrawal string 66 may be a thermally fusible bifilament yarn comprising a fusible filament and a non-fusible strengthening filament such as cotton yarn plied with cellulose acetate or polyvinyl chloride yarn, or rayon plied with nylon. The string may alternatively be a non-fusible string coated, or impregnated and coated, with a hotmelt adhesive, such as mercerised cotton impregnated and coated with a plasticised cellulose diacetate composition.
Patent GB-1365709-A (GB)
Title: Simultaneous production of cycloalkanone oximes and ammonium  nitrate solution
IPC: C01C1/18
Filed: 1971-12-30
Abstract: 1365709 Ammonium nitrate BADISCHE ANILIN- & SODA-FABRIK AG 30 Dec 1971 [2 Jan 1971] 60676/71 Heading C1A [Also in Division C2] Ammonium nitrate is simultaneously produced with alkanone oximes by reacting cycloalkanone with hydroxyl ammonium nitrate obtained by the catalytic reduction of nitrogen monoxide with hydrogen in dilute nitric acid.
Patent GB-1249900-A (GB)
Title: Improvements in and relating to identity cards
Inventor: SCHOETTLE HELMUT
IPC: B42D25/00
Filed: 1968-12-31
Abstract: 1,249,900. Preventing fraud. ANDREMAWERKE G.m.b.H. 31 Dec., 1968, [5 Jan., 1968], No. 61829/68. Heading B6A. An identity card comprises a carrier 1 bearing a thin coating 2 of a material suitable for receiving writing and having its surface formed into a pattern 3 which is easily disturbed by, and thus renders apparent, writing or erasive of writing thereon. The carrier 1 may be formed of hard PVC having a glossy surface. The coating 2 is of softer plastics material which may be highly pigmented so that it has a matt or rough surface. The pattern 3 may comprise .perforations which may be letters representing repetitions of a monogram, and pass through the coating 2 as in Fig. 4, or may comprise recesses forming an intaglio pattern (Fig. 6, not shown). The carrier 1 may be of a different color than the coating 2 so that the pattern, when formed as perforations, stands out. The identity card may be punched from a sheet (4), Fig. 5, not shown, on which a plurality of identity cards are printed, the coatings (5) being applied during the printing operation.
Patent GB-649626-A (GB)
Abstract: 649,626. Rotary pumps. HOBOURNEATON MANUFACTURING CO., Ltd. Nov. 20, 1948, No. 30227. Convention date, Nov. 21, 1947. [Class 110(ii)] The pump comprises inner and outer, relatively eccentric, toothed rotors 16, 14 rotating within a casing bore 22, and provided with multiple apertured intake ports 34, 36, 38 and multiple delivery ports 40, 42 in the casing cover 18. These multiple ports equal in length the respective intake and discharge ports 30, 32 in the casing 10.
Patent GB-2023100-A (GB)
Title: A tight cardboard box and blank
IPC: B65D5/02
Filed: 1978-06-14
Abstract: A cardboard box consists of a cardboard blank comprising a plurality of wall panels (1), (2), etc., separated by fold lines and a plurality of superimposed sealing and closure flaps (6) - (9) separated by cuts parallel with said fold lines. At least one flap (7), (9) is provided at the areas of said cuts with lips (13) protruding from said flap, the cuts each comprising two parallel scribings extending only partially through the material of the cardboard blank so that the blank material is split to form said lip (13) between said scribings when the cardboard blank is erected to form a box. Said split lips (13) are pressed against the inner surfaces of the adjoining wall panels e.g. (1) to form a tight seal. <IMAGE>
Patent GB-2001093-A (GB)
Title: Process for the production of vat dyes and use thereof
IPC: C09B3/36
Filed: 1978-07-14
Abstract: Vat dyes of the formula   <IMAGE> wherein R is an alkylene radical of 1 to 6 carbon atoms which can be substituted by halogen, hydroxy or phenyl, an alkenylene radical of 1 to 6 carbon atoms or a phenylene radical, and the radical R can form 1 to 3 ring members between the two oxygen atoms are produced by reacting the compound of the formula   <IMAGE> in aprotic dipolar solvents selected from the group consisting of sulpholane, N-methyl-2-pyrrolidone, hexamethylphosphoric triamide, dimethyl sulphoxide, dimethyl formamide, dimethyl acetamide, diethyl acetamide, acetonitrile and tetramethyl urea, with compounds of the formula  X-R-X (3), wherein X is halogen and R is as defined in formula (1), in the presence of bases, at elevated temperature.
Patent GB-2004024-A (GB)
Title: Centrifugal compressor diffusers
IPC: F04D29/68
Filed: 1978-09-08
Abstract: In order to eliminate boundary layers formed in diffusers of gas turbine engine centrifugal compressors, fluid of a boundary layer formed along a wall (12) of a diffuser flow duct (18) and/or along a surface of a guide vane (20) of that diffuser is bled off through pores or perforations (19) in the surface along which the boundary layer is formed. Such fluid is bled into collector spaces (13,14) for ducting to suitable locations outside the diffuser. Collector spaces (13 and 14) formed on opposite sides of a flow duct (18) are placed in communication one with the other through the hollow interior (21) of the guide vane (20) therebetween. <IMAGE>
Patent GB-2004163-A (GB)
Title: A scanning and distribution device for a telephone exchange
IPC: H04Q11/04
Filed: 1978-09-11
Abstract: The device comprises a common part (PC) connected to a central control system (SG) and terminal parts (PTi) depending on this common part. Each terminal part comprises, on one hand, access circuits (CAT) placed next to terminal circuits (CT) provided with distribution and scanning points and, on the other hand, an interconnection circuit (CRi) acting as an interface between the common part and the access circuits. <IMAGE>
Patent GB-2006220-A (GB)
Title: Foamable bituminous/rubber compositions and foams thereof
IPC: C08J9/00
Filed: 1978-10-05
Abstract: The compositions consist essentially of a bitumen, a thermoplastic rubber, finely divided particles of a non- thermoplastic rubber and a chemical foaming agent. Optionally a filler, a hardened extract and/or a foam stabiliser can be present. The foamed materials can be in the form of sheets and membranes and are suitable for use in the building and automotive industries.
Patent GB-2035717-A (GB)
Title: Electrical contact assemblies
IPC: H01R31/00
Filed: 1978-10-26
Abstract: An electrical contact assembly 1 comprises a pair of metal contact members and a metal collar 3 holding the contact members. The pair of contact members include one or two "first" pairs of springy blades 5, projecting from one side 6 of the collar 3, and one or two "second" pairs of springy blades 7 projecting from the opposite side 8 of the collar 3, as well as a pair of intermediate portions 9 which are outwardly convex so that they rock on portions 16 of the collar 3. The free end portions 10 and 11 of blades 5 and 7 are convex towards each other so as to make rolling contact with terminal members 12 and 13 when the latter are inserted between the blades 5 and 7 respectively. Because of the rocking engagement of the contact members with the collar 3, the forces are balanced between the two blades 5 and the terminal member 12, and the other two forces are also balanced between the two blades 7 and the terminal member 13, this being substantially the case even if the terminal members 12 and 13 are slightly misaligned. <IMAGE>
Patent GB-2022846-A (GB)
Title: Pressure Detectors
IPC: G01L11/00
Filed: 1978-10-26
Abstract: A pressure detector for use in a steam flow line and comprising a chamber 4 in which condensate can collect and a baffle 5 between an inlet 2 and an outlet 3 of this chamber. The baffle is disposed such that a steam flow induced pressure drop at the chamber outlet results in rise in condensate level on the outlet side of the baffle and corresponding fall on the inlet side. The detector further comprises means 6 for detecting change in condensate level, e.g. a sight glass, electric probe or float. <IMAGE>
Patent GB-2008768-A (GB)
Title: Motor Speed Detector
IPC: G01P3/46
Filed: 1978-11-03
Abstract: A motor speed detector comprises detecting coils 4 & 6 located in the magnetic field of a motor to give quadrature outputs proportional to its speed and feeding squaring circuits 8, 10, whose outputs are summed by means 12, which gives a speed dependent output. Since 4 and 6 produce sine and cosine outputs and since Sine<2>+Cosine<2>=1, the output from 12 is ripple free. It is particularly applicable to disc record players. The arrangement shown has permanent magnet rotor 17, and, mounted on a stationary member forming a magnetic return path. Stator coils 14, 16 in quadrature relationship. Coils 14, 16 are generally triangular with two sides radial to the motor axis. Hall devices 18, 20 operate in the same field as 14, 16 and provide sine and cosine drive waveforms to them. <IMAGE>
Patent GB-2011432-A (GB)
Title: Foundry Mixes, Foundry Products Obtained Therefrom, a Process for the Manufacture of the Foundry Products and Binder Compositions Used in Preparing the Mixes
IPC: C08G18/00
Filed: 1979-01-22
Abstract: The foundry mixes are made from foundry aggregate and a binding amount of a composition, hitherto unknown as a binder for foundry products, comprising an epoxide and an organic isocyanate. Curing is effected by catalysing reaction between the epoxide and isocyanate preferably using a volatile amine. The use of a co-catalyst, which is preferably a phenol, is desirable. The binder compositions comprising an epoxide, organic isocyanate and a phenol co-catalyst are themselves novel and their reaction when treated with a volatile amine catalyst provides a new process for preparing oxazolidones.
Patent GB-2018514-A (GB)
Title: Capacitor
IPC: H01G4/12
Filed: 1979-02-26
Abstract: A capacitor includes dielectric material having a ferroelectric phase and dielectric constant/temperature characteristics which show hysteresis of 5% or less. This may be achieved by using a conventional dielectric material with electrodes whose coefficient of thermal expansion is similar to that of the dielectric material, for example, electrodes made of chrome, metal oxide or carbon. Alternatively, hysteresis of 5% or less can be achieved by including in conventional dielectric material, an oxide of a rare earth element or an oxide of a metal of Group Va of the Periodic Table.
Patent GB-2015620-A (GB)
Title: Improvements relating to trenching apparatus
IPC: E02F5/10
Filed: 1979-02-28
Abstract: A trenching apparatus for use in burying a pipeline or cable comprises a series of bucket-like scoops arranged in the form of an endless device, e.g. bucket wheels 2, 3 and drive means for moving the bucket- like scoops to excavate a trench as the apparatus is moved. Preferably at least two such endless devices are provided and arranged to produce a V-shaped trench, the endless devices operating in planes which are angled with respect to each other to form said trench. <IMAGE>
Patent GB-2017847-A (GB)
Title: Load sensing valve assembly lock-up device
IPC: B60T8/18
Filed: 1979-03-05
Abstract: A load-sensing valve assembly for a motor vehicle air pressure braking system includes a member such as a diaphragm 12 which is displaceable by a signal pressure at an inlet 15 from a braking valve to actuate through a pivoted beam 13, a valve 14 operable to control the flow of pressure air from the inlet 15 to an outlet 16 and hence to the brakes and means 24 responsive to the vehicle load for displacing the fulcrum 20 of the beam to modify its effective leverage. The valve assembly is provided with locking means comprising knurled surfaces 40 on a carriage 22 and 33 engageable in response to the supply of pressure fluid to the valve assembly lifting the beam 13 to prevent further displacement of the fulcrum of the beam so avoiding an imbalanced braking effect due to for example an increase in the load on one axle during vehicle braking. A modified valve includes a dashpot acting on the forked lever 24 to prevent carriage oscillations. <IMAGE>
Patent GB-2020933-A (GB)
Title: Fluidic analog to digital converter
IPC: G06D1/00
Filed: 1979-03-27
Abstract: A fluid pressure ramp signal is applied via a common pressure chamber to one side of each of a plurality of differential pressure transducers, the other side of each of which receives a process pressure to be converted to electric digital form. In Figure 1, detection of pressure equality by any one of the transducers gates the output of a clock-driven counter into a count store respective to the transducer. In a modification, said detection of pressure equality gates the output of a further transducer responsive to the ramp into a sample and hold circuit respective to the (differential) transducer. The sample and hold circuits feed an A/D converter via a multiplexer. <IMAGE>
Patent GB-2021719-A (GB)
Title: Screwed compression joint
IPC: F16L19/10
Filed: 1979-04-12
Abstract: A screw compression joint for central heating pipes and the like has a socket 16 with a plane internal shoulder 22 and an internal screw thread 21 which receives a hollow screw 24 through which extends the pipe 23. To clamp and seal the pipe, a compression ring 25 in the socket has a tapered outer end 30 which is compressed onto to the pipe by an internal conical surface 31 in the inner end of the screw. The other end 32 of the compression ring has an annular cutting edge which is pressed onto and preferably bites into the shoulder 22, to provide a second seal. The same socket can alternatively receive a screwed pipe end. <IMAGE>