baber/WOPTO huggingface dataset:
Patent GB-1143258-A (GB)
Title: Improvements in or relating to the manufacture of high molecular weight synthetic linear polyamides
Inventor: CARTER JOHN ANTHONY
IPC: C08G85/00
Filed: 1966-11-09
Abstract: 1,143,258. Pigmented polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 Oct., 1967 [9 Nov., 1966], No. 50214/66. Heading C3R. Pigmented high M.W. linear polyamides are prepared by condensing one or more monomers selected from: a diammonium salt of a diamine NH 2 -X-NH 2  with a dibasic acid HOOC-YCOOH or an amino acid NH 2 -Z-COOH. X, Y and Z denote methylene chains, X and Y together contain at least 6 methylene groups and Z at least 3. The methylene chains may be interrupted by 0, 1 or 2 meta or para-phenylene groups and may also bear alkyl or aryl substituents and may optionally contain -O- links, providing the groups -O-O-, -O-CH 2 -N- and -O-CH 2 -CH 2 -CO- are absent. An aq. soln. of the said monomer or monomers is pumped through an elongated reaction zone heated to polymerization temperatures in which the reaction mass flows in two phases from an initial pressure at the inlet of at least 14 atmospheres to a pressure of not more than 1 atmosphere at the outlet. At a point in the reaction zone at which the temperature of the reaction mass is not more than 5‹ C. below the temperature of the vessel walls and the pressure is at least 7 atmospheres greater than that at the outlet, a dispersion (preferably aqueous) of pigment, e.g. TiO 2  or carbon black, is introduced into the reaction mixture and polymerization is completed. Examples of suitable polyamide forming monomers are: hexamethylene diamine with adipic acid, sebacic acid, suberic acid, terephthalic acid or isophthalic acid; m-xylylene diamine and adipic acid; dodecamethylene diamine or nonomethylene diamine with terephthalic acid; #-aminocaproic acid; and #-aminoundecanoic acid. The resultant polyamines are suitable for the fabrication of films, filaments and ribbons. In a typical example a polyamide of hexamethylene diammonium adipate is pigmented with TiO 2  at a reaction temperature of 290‹ C. and using an initial pressure of 23 atmospheres. The reaction zone in the form of a steel coil is 273 metres in length.
Patent GB-1506337-A (GB)
Title: Dual seal arrangement for a centrifuge rotor tube cavity
IPC: B04B5/04
Filed: 1976-12-02
Abstract: 1506337 Sealing tube-receiving cavities in centrifuge rotors BECKMAN INSTRUMENTS Inc 2 Dec 1976 [17 Aug 1976] 50231/76 Heading B2P In a centrifuge comprising a rotor 10, Fig. 1 (not shown) having at least one cavity 12 in which is held a fluid sample-carrying test tube 14 to which a capping assembly 17 is secured, a closure plug 50 is threadedly mounted within the cavity 12 and engages a resilient sealing element 42 to effect a fluid-tight seal. This prevents the escape of any fluid sample from the rotor cavity in the event that the fluid sample should escape from the test tube. Two other modified sealing arrangements are described.
Patent GB-1305960-A (GB)
IPC: B66B1/18
Filed: 1970-10-22
Abstract: 1305960 Lift control systems HITACHI Ltd 22 Oct 1970 [24 Oct 1969 8 Dec 1969(2)] 50284/70 Heading B8L To prevent "bunching" in a multicar lift system car position signals fed to a call allocator are artificially advanced if the space between adjacent cars is below a prescribed limit so that the leading car is prevented from responding to a call. In the example shown in Fig. 6 car A at the third floor would normally be stopped to answer the upward call on the fourth floor, but because the space between A and B is below the limit its position is indicated as being at the sixth floor so that it will be allocated the eighth floor call only, leaving car B to answer the fourth floor. The amount of the advancement is that required to just establish the predetermined limit. Fig. 1 shows the arrangements pertaining to each car. "Physical position" signals FA ... FC for each car, which equal the actual position corrected for stopping distance, are supplied as multiple inputs (one per car per floor) to "space detector" DA which comprises logic circuits arranged to switch resistors so as to produce an output voltage SSA whose magnitude represents the space between the respective car and the car following it. To this may be added a further voltage K representative of the number of passengers, the round trip time and the number of hull calls, the result being compared in device EA with reference voltages to produce a voltage PSS equivalent to the number of floors which the car position must be advanced to produce the desired separation. This is added to FA to produce fa, termed the "provisional position", and this is supplied to device MA which allocates the hull calls HC to the car. This also comprises a logic circuit and three alternatives are described. In the first, all calls between the provisional position of the car associated with the device and the preceding car are allocated to the associated car, in the second, only the next succeeding call is allocated, the other calls being ignored until the car has stopped and the positions re-considered. In the third alternative a prescribed number of floors ahead of the car only are considered, e.g. five, and this number can be varied in stages, decreasing when a large number of calls (both hull and car calls) are registered.
Patent GB-1477536-A (GB)
Title: Production of tube-type separators for storage batteries
IPC: H01M2/18
Filed: 1974-11-20
Abstract: 1477536 Separators for storage batteries DSO BALKANKAR 20 Nov 1974 [21 Nov 1973] 50399/74 Heading H1B Tubular battery separators are formed by gripping the separator cloth of, e.g. polyester between jaws 4, 5 and 6 and sets of rods 1, 2 which are inserted in pockets in the cloth, the jaws then move to the right for a distance equal to the length of the separator, at the same time knifes cut the cloth longitudinally and weld the edges. The cloth and rods are then gripped by jaws 9, 10, and the jaws 4, 5, 6 opened and returned to their initial position. Knives 16 cut the formed separators transversely.
Patent GB-1205569-A (GB)
Title: Improvements in or relating to stethoscopes
Inventor: STARKEY BERTRAND JULIAN
IPC: A61B7/04
Filed: 1966-10-10
Abstract: 1,205,569. Stethoscopic amplifier. E.M.I. ELECTRONICS (CANADA) Ltd. 12 Oct., 1967 [10 Nov., 1966], No. 50427/66. Headings H4J and H4R. In a stethoscope having an input transducer 1 (Fig. 1), an output transducer 8<SP>1</SP> and two oscillators 3, 4, the oscillations generated by the first oscillator 3 are frequency modulated by the electrical signals from the input transducer 1. The second oscillator 4 generates oscillations at the (unmodulated) frequency of the first oscillator 3. The outputs from both oscillators are passed through a mixer 5 and a filter 6 which selects signals at the difference frequency. Such difference frequency signals are applied to an output transducer 6 to provide an output acoustic wave pattern related to the input acoustic wave pattern but translated in frequency thereto so as to lie in a more easily audible frequency region. In operation and in the absence of an incident wave pattern, there is substantially no audible acoustic output wave pattern. Alternatively, a suppressed carrier amplitude modulator 10 (Fig. 3) modulates the amplitude of the oscillations generated by a first oscillator 9. A mixer 5 mixes the outputs from the modulator 10 and from a second oscillator 4 which generates oscillations at a reference frequency. The difference frequency is selected by a filter 6. The output transducer 8<SP>1</SP> provides an output pattern related to the input pattern but translated in frequency so as to lie in a more easily audible frequency region. In operation and in the absence of an incident wave there is substantially no audible acoustic wave pattern. The input transducer may be of ceramic type. An output point 7 permits direct monitoring of the input signal. A transistorized circuit of the stethoscope of Fig. 1 is given in which the oscillators 3, 4 comprise astable multivibrators (Fig. 2, not shown). There may be selective input and/or output filtering to discriminate different types of signal, amplitude compression to emphasize low level signals, and automatic gain control to compensate for signal variation from one patient to another. The output signal may be recorded on disc or magnetic tape for reference.
Patent GB-1415499-A (GB)
Title: Low temperature carbonization and desulphurization of coal under elevated pressures
IPC: C10B49/10
Filed: 1972-11-01
Abstract: 1415499 Coking; destructive hydrogenation USS ENGS & CONSULTANTS Inc 1 Nov 1972 [2 Nov 1971] 50428/72 Heading C5E Coal is carbonized and desulphurized by contacting a mixture of coal and coke in a fluidized bed with a gas containing hydrogen at 950‹ to 1500‹ F. and 30 to 3000 p.s.i.a. The gas contains not less than 20 mol. per cent of hydrogen and no more than 2% by volume of H 2 S and is substantially free of oxygen; part of the gaseous product may be freed of H 2 S and recycled to provide this gas. Similarly, the coke in the fluidized bed may be a recycled portion of the coke product, which contains no more than 1% of sulphur, though the coal fed contains at least 1À1% of sulphur (1À9% in the example). The fluidizing gas may contain water vapour. The gas product may be worked up by first cooling it to separate oils, then scrubbing to remove CO 2  and H 2 S, which may be recovered conventionally, then sending part to recycle and further cooling the rest. This is then scrubbed to remove ammonia and cooled to remove first light oils, ethane, ethylene and acid gases, and then as a second fraction most of the methane. The first fraction can be fractionated conventionally to separate ethylene; the methane can be reformed with steam; and the residual gas (H 2  and CO with some methane) can be "shifted" with steam and the CO 2  so obtained then scrubbed out to leave hydrogen containing a small proportion of methane. A heavy oil may be fed to the carbonizing step with the coal and coke.
Patent GB-1271447-A (GB)
Title: Means for attaching an end plate to a cylindrical pressure chamber
IPC: F16J13/10
Filed: 1969-10-14
Abstract: 1,271,447. Cylinders; cylinder covers. ALFRED TEVES G.m.b.H. 14 Oct., 1969 [19 Oct., 1968], No. 50441/69. Headings F2P and F2T. An end plate 4 is secured within a cylinder 2 by a ring 8 setting in an annular recess in the end plate and having an annular projection 9 engaging in a slot 7 in the interior surface of the cylinder, means being provided to secure the plate in position against the ring. The means may consist of radial straps 10 fixed to the wall of the cylinder so that bolts 11, extending through holes in the straps, can be used to tighten the end plate 4 against the ring 8. The endplate may separate a low pressure cylinder (25), Fig. 1 (not shown), from a high pressure cylinder (26) coaxial with it and of smaller diameter, a common piston-rod for both cylinders passing through the plate.
Patent GB-1175248-A (GB)
Title: A Device for Controlling the Position of the Wings of Variable Geometry Aircraft.
IPC: B64C3/40
Filed: 1967-11-08
Abstract: 1,175,248. Screw and nut gearing. AVIONS MARCEL DASSAULT. 8 Nov., 1967 [28 Feb., 1967], No. 50815/67. Heading F2Q. [Also in Divisions B7 and G3] A jack comprises two simultaneously operable coaxial screw and nut assemblies, 7, 5 and 8, 6, operable so that two displaceable elements (e.g. the non-rotating screws 7, 8) both extend or retract by equal amounts from the jack. In the embodiment illustrated a fixed housing 1 contains a tubular member 2 rotated through gearing 27 and 23, 28 and 24 by two motors 25, 26. The ends 5, 6 of the member 2 are tapped with threads of equal pitch but of opposite hand one to the other, and engage the screws 7, 8 which are prevented from rotating by grooves in collars 11, 12 engaging splines in extensions 9, 10 of the housing. The jack may be mounted in a variable geometry aircraft to control the wing position (see Division B7). The hydraulic motors 25, 26 may be controlled by a member 52 and a servomechanism.
Patent GB-1365347-A (GB)
Title: Cylinder head for a liquid cooled internal combustion engine
IPC: F02B3/06
Filed: 1971-11-02
Abstract: 1365347 Cooling I C engines MASCHINENFABRIK AUGSBURG-NœRNBERG A G 2 Nov 1971 [6 Nov 1970] 50977/71 Heading F1B A cylinder head for a liquid cooled I. C. engine comprises a base-plate 10 of material capable of withstanding the high temperatures of the combustion chamber and provided with inlet and exhaust valve seats surrounded by cooling ducts 26, a supporting part 11 defining at least one exhaust valve guide 16 and an exhaust port 19 and an inlet port part 12 defining at least one inlet valve guide 20 and an inlet port being secured to the base-plate,the base-plate and the parts 11 and 12 being of different materials. The baseplate may be of steel, the part 11 of spheroidal graphite cast iron and the part 12 of aluminium alloy. The exhaust port 19 is cooled by liquid in ducts 28, but the inlet port is cooled by air in the space 29, which also houses fuel injection units.
Patent GB-1412140-A (GB)
Title: Anti-tank mines
IPC: F42B23/04
Filed: 1973-02-09
Abstract: 1412140 Land mines INDUSTRIE-WERKE KARLSRUHE AUGSBURG AG 9 Feb 1973 [19 Feb 1972] 51390/72 Heading F3A A land mine comprises a body 2 housing a closed sphere 1 inside which is a movable second sphere 3 carrying a hollow charge 5. An annular weight 10 causes the inner sphere to rotate so that the hollow of the charge is directed upwardly in whatever position the mine is lying on the ground. A piezo-electric detonator 11 is arranged within the annular weight 10 and a transfer change 8 is provided. Projections 4 attached to the outside of sphere 3 permit relative movement of the two spheres. The mine is intended for use against armoured vehicles and may be carried by infantry or scattered over the ground from vehicles or aircraft.
Patent GB-1378663-A (GB)
Title: Device for use as mulch
IPC: A01M21/04
Filed: 1972-09-20
Abstract: 1378663 A device for mulching V S BASNAYAKE 20 Sept 1972 [4 Nov 1971] 51393/71 Heading A1E A mulching device comprises a sheet of protective material having an aperture 4 from which short radial slits 5 extend to accommodate a plant stem and a slit 6 extending from the outer periphery of the sheet to the aperture, which facilitates the positioning of the device round a plant. The sheet may be made pervious to air and water by means of a series of perforations 7-11. The device may also include additional sheets 2, 3 of similar form, under the top sheet, containing nutrients, fungicides and insecticides as required.
Patent GB-1260050-A (GB)
Title: Apparatus particularly for a stud welding tool for automatically feeding and positioning studs
IPC: B23K11/00
Filed: 1969-10-20
Abstract: 1,260,050. Stud welding. TRW Inc. 20 Oct., 1969 [21 Oct., 1968], No. 51426/69. Heading B3R. Apparatus for automatically feeding and positioning studs comprises a chuck 64 having a passage communicating with a loading chamber 60 which has a side inlet 58 from which a stud 84 is propelled and means associated with said loading chamber for directing a force against the stud in an opposite direction to the chuck 64. In operation, a plunger 72 is drawn back from the jaws 70 of the chuck 64 by air pressure supplied, via a four-way valve, to the cylinder 28 prior to which a stud is transferred by air pressure from an escapement via a flexible tube through a fitting 54 and into the inlet 58 against the side of the plunger 72 when in a forward position. The internal passage through the tube, the fitting 54 and the inlet 58 has a T cross-section similar to that of the stud. Retraction of the plunger 72 allows the stud to move into the loading chamber. Air is simultaneously supplied to the passage 82 via passages 88, 90, 92, 94 from the forward end of the cylinder, thus forcing the stud against an annular shoulder formed in the loading chamber 60 immediately to the rear of the inlet 58. The plunger 72 is then moved forwardly to back up the stud in the chuck 64 ready for arc or resistance welding. The chuck leg 26 together with the chuck assembly 16 is retracted when current is supplied to a coil acting on a solenoid core associated with the chuck leg 26, and a spring returns the chuck to the workpiece. Welding current is supplied to the stud via the chuck leg 26 and chuck assembly 16 which is surrounded by a spark shield. The studs are provided from a vibratory hopper having a spiral track therein which orientates them and sequentially feeds them to the loading chamber 60 via the escapement body.
Patent GB-1514290-A (GB)
Title: Method and apparatus for effecting ion implantation of semiconductor wafers
IPC: H01L21/677
Filed: 1975-12-18
Abstract: 1514290 Inflatable seals ACCELERATORS Inc 18 Dec 1975 [11 Feb 1975] 51944/75 Heading F2B [Also ih Division H1] In an ion implantation apparatus, a wafer to be implanted passes down a slot-shaped passage, and is stopped adjacent a window communicating with an ion source. During implantation the wafer is positioned between two inflatable tubes 8, 9 inflated to form a chamber connected to the implantation chamber 12. After ion bombardment the wafer is released and passes from the implantation chamber when tube 9 is deflected. Auxiliary roughing vacuum chambers may be formed on each side of the implantation chamber by including further inflatable tubes 7, 10 in the passage. The wafers may be conveyed to and from the passage by pulley-driven rubber belts 2 and 23. The passage may be either moulded directly from synthetic resin or be a three-sided structure closed by a transparent plate 6 made from acrylic resin.
Patent GB-1201480-A (GB)
Title: Friction-drive speed-reduction mechanism
IPC: F16H13/06
Filed: 1967-11-15
Abstract: 1,201,480. Friction gearing. ASAHI SEIKI KOGYO K.K. 15 Nov., 1967 [19 Nov., 1966; 4 Feb., 1967], No. 52026/67. Heading F2Q. In a friction drive reduction gear comprising an input shaft 5, an output shaft 44 and an intermediate shaft 17, cone rollers 21, 33 are secured to the intermediate shaft 17, the roller 21 driving a ring 32 through intermediate fixed idler rollers 22, 23, and the roller 33 driving planet rollers 34, 35 mounted on a carrier 47 secured to output shaft 44 and engaging a ring 41 coaxial with ring 32, the rings 32, 41 having mutually facing corrugated cam surfaces between which balls 42, 43 are located constituting a force applying device. An overload release device allows the idler rollers 22, 23 to planetate on overloading of the mechanism. The ends of shafts 24, 25, carrying the rollers 22, 23, engage slots 27, 28 in a carrier member 26a which normally is held stationary with respect to a fixed member 26b by spring-pressed detents 52 carrying centrifugal weights 55. On overload, the detents 52 slip and are held out of engagement by the centrifugal force acting on the weights 55. Planetary gearing between input shaft 5 and intermediate shaft 17 comprises a sun cone roller 6, coupled to input shaft 5 by a force-applying cam-ball device 6b, planet cone rollers 14, 15, a fixed annulus 13 and a planet carrier 18 secured to intermediate shaft 17. The annulus 13 may be resiliently mounted so as to have limited angular freedom of movement with respect to a fixed housing wall 12 by means of a pin 62, block 61 and springs 63 located in a recess 60, the springs 63 yielding on overload.
Patent GB-1123476-A (GB)
Title: A wire terminal and earthing contact for an electrical connector
IPC: H01R13/53
Filed: 1966-05-12
Abstract: 1,123,476. Two-part couplings; terminals. ARROW ELECTRIC SWITCHES Ltd. 12 May, 1966 [10 Sept., 1965], No. 52219/66. Divided out of 1,123,475. Heading H2E. A combined wire terminal and earthing contact comprises a stamped sheet metal member 71 bent to a right angle and having a narrowed limb 74 embraced by a tubular member 76 provided with means, (e.g. a screw 77) to clamp a wire between it and a serrated face of the limb 74, and a resilient contact 79 secured to the member 71 and to an insulating body by a rivet or the like, the curved end 78 of the contact 79 resiliently contacting a metallic part to be earthed. The terminal is described fitted to a connector disclosed in Specification 1,123,475, so as to facilitate earthing the connector shell.
Patent GB-1448589-A (GB)
Title: Protective headgear
IPC: B29C45/16
Filed: 1973-12-20
Abstract: 1448589 Helmets IMPERIAL CHEMICAL INDUSTRIES Ltd 3 Dec 1974 [20 Dec 1973 (2)] 59055/73 and 52234/74 Heading A3V [Also in Division B5] An article of protective headgear comprising a crown portion 1 of thermoplastics material containing reinforcing fibres and a flexible peak portion 2 of thermoplastics material, is made by injection moulding the crown portion onto the peak, the peak material having a melting point below the temperature of the injected crown material to ensure a good joint (see Division B5). The peak and crown portions may be interlocked by the use of suitably shaped moulds and cores (Figs. 6, not shown).
Patent GB-1140615-A (GB)
Title: Improvements relating to stays for hinged windows
Inventor: BENNION DENNIS
IPC: E05C17/30
Filed: 1966-11-23
Abstract: 1,140,615. Telescopic stay. S. M. L. (ENGINEERS) Ltd. [trading as ELLBEE WINDOW CO.]. 2 Oct., 1967 [23 Nov., 1966], No. 52346/66. Heading E2F. A telescopic stay comprises two channel section strut members 1 and 2 hinged to the window W and frame F respectively of a hinged window, the outer member 2 having a .series of longitudinally spaced openings 3 and the inner member 1 having a rockable catch or cam 5 pivoted at 4 near its upper end and provided with a nose 6 for locking automatically against an edge of an opening 3, the arrangement being .such that, when the strut 1 is fully extended, the catch 5 is rocked by the stud 2B on the member 2 into the inoperative position, and when the strut 1 is fully retracted, the catch 5-is rocked by the stud 2A into the operative position. The catch nose 6 may be urged outwards by a leaf spring 8 (Fig. - 4, not shown) or it may be held within the boundary 'of the inner member 1 by engagement of the portion 9 of the spring with a notch 10 in the catch (Fig. 3). The window may be locked by a recess in a plate 14 pivoted on a bracket 11 on the window W engaging a pin 16 secured on the window frame F.
Patent GB-1122072-A (GB)
Title: Can opener
IPC: B67B7/70
Filed: 1965-12-10
Abstract: 1,122,072. Electrically powered can openers. SUNBEAM CORP. 10 Dec., 1965 [8 July, 1965], No. 52623/65. Heading B8D. A can opener, driven by an electric motor 39 through a worm, on the upper end of an armature shaft 41, and spur gears 42a, 42b and 45, has a traction wheel 24 and rotary cutting wheel 26 movable to an inoperative position, Fig. 2 (not shown), by means of a lever 28. The cutting wheel 26 is mounted in a boss 27 which has limited movement, due to a rubber mounting washer 31, in an opening 11b in a housing 11, thereby providing means to compensate for variable thickness in the rims of cans being opened. The boss 27 also forms a pivot for the lever 28. The shaft 41 carries a commutator ring 67 engaged by brushes (68, 69), Fig. 4 (not shown), connected respectively to a mains lead (19) and one end of the motor field winding. The other end of the winding is connected to a switch (77) to which the mains lead is also directly connected. On lowering a handle (38) on the lever 28 to engage the cutting wheel 26 with a can top, the lever 28 engages a flexible arm (84b) on the mounting of the switch (77). Further pressure on the handle (38) against a stop (11d) formed on the casing (11) causes a portion of the flexible arm (84b) to close spring contacts (80, 81) of the switch, thereby driving the motor 39. An assembly 104 including a magnet (105), Fig. 8 (not shown), is mounted on a cover (101) manually pivotable on posts (102) to an operative position where the magnet holds the can lid when cut. The magnet is itself pivotally mounted and has limited vertical movement in slots (107a) of the cover (101) to allow for cans of different sizes.