baber/WOPTO huggingface dataset:
Patent GB-904608-A (GB)
Title: Improvements in nuclear reactors
IPC: B25J11/00
Filed: 1959-05-28
Abstract: 904,608. Reactors. GENERAL DYNAMICS CORPORATION. May 28, 1959 [June 25, 1958], No. 18281/59. Class 39 (4). [Also in Group XXX] The reflector of a nuclear reactor contains a rack in which specimens are irradiated, means for removing specimens from a fixed position in the reflector, and means for moving the rack to bring a desired specimen to the fixed position. Fig. 2 shows a reactor core 21 in an-aluminium tank in a gravel and concrete lined pit. A reflector 27 of graphite, beryllium or beryllia is encased in metal and has an annular recess which holds a rotary specimen rack 28 in a removable container, Fig. 7. The reflector also has a recess at one edge for a large specimen can, and two small irradiation holes; the core contains a central " glory hole" 111 and a pneumatic tube 135. The reflector is carried by aluminium channels on jacks 134. The rack consists of a rotatable metal ring carrying cups 141, some of which are perforated to permit drying of the interior of the rack. A tube 165 contains rods 164 to drive the rack and 165 to lock the rack by means of holes 178 ; specimens are removed or inserted through tube 154. D 2 O or H 2 O is used as top shield moderator and coolant, with natural circulation over pipes 253 which form part of a refrigerating system. Each fuel element 24 has a central fuel part, containing a mixture of fuel, moderator e.g. ZrH, Be, BeO, graphite, strong resonance absorber, e.g. U<SP>238</SP>, Th<SP>232</SP>, and possibly burnable poison, e.g. Sm, between end parts of moderator; the elements are mounted in pierced grid plates and their tops have grooves 55 and spacers 57. Fig. 13 shows groove 55 engaged by a ball lock 265 in a spring-loaded piston inside a weighted tube 261 which slides in a weighted tube 259. Suspension cables 276 are fastened to the tube 261 and a release cable 272 is fastened to the piston ; a switch 280 indicates when the fuel element is correctly placed in the core. Movable fuel hoists are provided. The three control rod assemblies 25, Fig. 10, comprise pierced composite aluminium tubes 70 fastened to the top grid plate 47. Inside the tube a cable supports, through an electromagnet 96, a boron carbide rod 85 which carries a shock-absorbing spring 87 ; the rod may be weighted. Winches for the control rods are mounted on a shelf 36 (Fig. 2) below a top cover ; these and the specimen hoist 207 have conventional servos, limit switches and position indicators. The reactor has a large negative temperature coefficient of reactivity, as described in Specification 852,877. Specifications 904,609 and 904,610 also are referred to.
Patent GB-1267656-A (GB)
Title: Improvements in or relating to injection moulding apparatus
Inventor: DOBLE BRIAN REGINALD
IPC: B29C45/76
Filed: 1968-04-18
Abstract: 1,267,656. Injection moulding machines. G. B. BRITTON & SONS Ltd. 2 April, 1969 [18 April, 1968], No. 18284/68. Heading B5A. An injection mould element 10 includes a movable mechanical sensor 22 for sensing when the mould is full, a mould support (27), Fig. 8 (not shown), to which the mould element is attached, a switch 44 (Fig. 11) or other control means connected to the mould support for interrupting injection, and parallel motion mechanism 34, 35, 39, 40 arranged to actuate the switch 44 when engaged by operating means connected to the sensor 22. The parallel motion mechanism includes a striker plate 40, a link 39 and two bell crank levers 34, 35 pivoted at 36, 37 on a frame member 38. An adjustable stop 48 limits the movement of the parallel motion mechanism. Injection is effected either through a passage 16 which can be closed by a screw threaded plunger 18 or through a channel 24 closable by a sliding member 25 which can be clamped by a screw 26. An alternative sensing pin may be provided in a passage 20 the sensor 22 being anchored by a transverse pin 23. The invention is applied to a machine for moulding soles on to footwear.
Patent GB-560431-A (GB)
Title: Improvements in cylindrical fire-tube boilers
IPC: F22B7/12
Filed: 1942-12-24
Abstract: 560,431. Return - - tube boilers. DANKS & CO. (OLDBURY), Ltd., E., JOHNSTON, W. F., and ASTON, A. Dec. 24, 1942, No. 18322. [Class 123 (ii)] In a boiler having return smoke tubes 8 opening into an external combustion chamber 7 and a front smoke box 26, the gas passes from the smoke box through smoke tubes 9 at the sides of the smoke tubes 8 to a gas outlet chamber 14 in front of the combustion chamber. An induced draft fan 31 and its motor 32 are mounted on the combustion chamber.
Patent GB-998518-A (GB)
Title: Method of polymerization of chloroprene
IPC: C08F236/16
Filed: 1963-05-09
Abstract: 100 parts by weight of chloroprene are copolymerized with 1.5 to 30 parts of 2,3-dichlorobutadiene and 1 to 50 parts of styrene.  The monomers are copolymerized in aqueous emulsion using the sodium salt of disproportionated wood rosin as emulsifying agent, the sodium salt of a formaldehyde/sodium naphthalene sulphonic acid as dispersing agent, potassium persulphate as catalyst and in the presence of N-dodecylmercaptan. The polymerization is terminated by adding either phenothiazine or p-tert-butyl catechol.  The latex formed is coagulated and recovered by conventional means.
Patent GB-102969-A (GB)
Title: Device for Electrically Controlling the Helms of Ships.
IPC: G05D1/02
Filed: 1916-12-22
Abstract: 102,969. Fiat-San Giorgio Soc. Anon. Dec. 22, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Steering-gear.-Any displacement of the handwheel 20 causes a corresponding displacement of the rudder by means of electric motors 1, 2, the shafts of which have bevel-wheels gearing wit! loose bevel-wheels 6, 7 of the differential 3. The shaft 9 is geared to the .rudder-operating shaft 22. Any displacement of the wheel 20 moves the pointer 18 over the rheostat 19, causing the motors 1, 2 to rotate in opposite directions to turn the shaft 22 and return the parts to the zero position, when motion ceases.
Patent GB-702267-A (GB)
Title: Friction linings for use in mines
IPC: C22C18/04
Filed: 1949-07-13
Abstract: A friction lining for use, e.g. in mines, consists of an alloy composed of zinc with from 1-4 per cent. aluminium.  The following elements can, in total, be additionally present up to 1 per cent. and if within the range 0.3-1 per cent. the aluminium content may be reduced to 0.75 per cent. nickel up to 0.3 per cent., manganese 0.2-0.7 per cent., iron up to 0.5 per cent., chromium up to 0.2 per cent.  Further additions may be made of a crystal-forming nuclei addition of up to 1 per cent. of cerium, up to 1 per cent. of zirconium and up to 2 per cent. of cadmium.  When manganese is present it may form up to less than 1 per cent. of the alloy with a correspondingly diminished zinc content.  The aluminium content may be partly replaced by copper, two parts by weight of aluminium being replaced by one part of copper.  The minimum aluminium content is 0.2 per cent.
Patent GB-953033-A (GB)
Title: Machine for sorting and grading articles, particularly fruit
IPC: B07B13/075
Filed: 1962-05-14
Abstract: 953,033. Fruit grading apparatus. R. L. BARBET. May 14, 1962 [May 15, 1961 ; May 2, 1962], No. 18499/62. Heading B2H. A machine for grading fruit or vegetables according to size comprises at least one bottomless basket P, Fig. 1, the walls of which are constituted by members Pi hinged to a supporting ring near their upper edges, and adapted to be moved to vary the size of the lower aperture of the basket, which aperture is formed by the lower edges of the members Pi, the members being adapted to engage one another whereby movement of one causes the others to move in the same sense and through the same angle. The baskets are driven by an endless chain E and the lower aperture of each basket is modified automatically as it passes along the machine by means of a member C in contact with a fixed ramp R. Each basket P is carried by a movable frame B running on rollers Bi, E 1  on tracks T, L respectively. The chain E also has rollers running on the track T. The V-shaped wire members Pi may be coated with a synthetic plastics material. The member C is slidable in the frame B, engages at one end with the fixed ramp R, and at the other end is secured to one of the V-shaped members Pi. The gap M between the track T and the ramp R increases along the machine so that the size of the lower aperture of each basket P increases allowing a fruit in the basket to drop through at an appropriate point into a compartment below. The baskets may move in a circular or oval path. In the alternative embodiment shown in Figs. 4, 8 and 9, the elements forming each basket are in the form of plates 1, 2a, 2b pivotably suspended from a ring 3. The plates narrow towards their lower ends to enable them to move inwardly and decrease the size of the lower aperture of the baskets. The plates 1, 2a, 2b have projecting side flanges 4a, 4b, 4c, 4d engaging with the adjacent plate and the plate 1 has a knob 11 to engage with a ramp 8 secured to a slidable rod 10 so that on movement of the knob 11 by the ramp 8 the lower ends of the plates 1, 2a, 2b all move towards the centre of the aperture. A number of baskets may be mounted below apertures 5a in a table 5, Fig. 8. The table is mounted on a tube 13 and a rod 16 in turn mounted on parallel chains 28a, 28b to move the table along the machine. The rod 16 in this case carries the ramps 8 and is slidable transverse to the chains in sleeves 17, 19. A cross-member 37 joining the tube 13 and the sleeve 17 carries a wheel 23 engaging with a fixed guide 24. A crossmember 21 joining the rod 16 and a rod 22 sliding in the tube 13 carries a further wheel 25 engaging with a fixed ramp 26 and held in engagement therewith by a spring 27. A series of tables 5 may be mounted parallel on the chains 28a, 28b, Fig. 9, and the ramp 26 is disposed at progressively smaller distances from the chains along the length of the machine, the sizes of the lower apertures of the baskets progressively increasing due to the action of the rod 16 and the ramps 8.
Patent GB-820188-A (GB)
Title: Improvements in circlip or retaining ring assemblies
Inventor: CROSS ROLAND CLAUDE
IPC: F16J1/18
Filed: 1957-06-12
Abstract: 820,188. Circlips. CROSS MANUFACTURING CO. (1938) Ltd. March 18, 1958 [June 12, 1957], No. 18530/57. Class 89(2) A machine-part-assembly comprises a part 1, Fig. 1, e.g. a piston, with a bore 2, and a part 3, e.g. a gudgeon-pin, in the bore, the parts being located against relative-axial-movement in one direction by a split spring-ring 6 applied to a groove in part 3 through a slot 7, without radialexpansion or contraction of the ring. Part 1 shrouds the ring and prevents its removal by expansion. In a modification, a ring 6a, Fig. 4 is housed in a groove 5a in part 1. which has a slot 7a. Part 3 shrouds the ring and prevents its removal by contraction. Specifications 702,465 and 806,628 are referred to.
Patent GB-824806-A (GB)
Title: Improvements in or relating to compression-ignition engines
IPC: F02B19/08
Filed: 1957-06-12
Abstract: 824,806. Combustion chambers. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. June 12. 1957 [July 13, 1956], No 18601/57. Class 7(3) In a compression ignition engine having a swirl chamber consisting of two partspherical chambers 2, 2<SP>1</SP>. Fig. 1, interconnected by a passage 3, the passage 5 leading to the cylinder opens into the passage 3 between the chambers and the fuel injection nozzle 4 sprays the fuel immediately on to the wall of the chambers 2, 2<SP>1</SP>, the jets being very short and directed in substantially the same direction as the air swirl in the chambers. The passage 5, Fig. 3, is inclined to the inner surface of the cylinder head and in a modification, Fig. 2, a water-cooled web 6 divides the entry duct 5 into two ducts 7. A single starting igniter 8, Fig. 1, or separate igniters 9, Fig. 2, in each chamber may be provided.
Patent GB-166237-A (GB)
Title: Full-wave vacuum tube oscillation detectors
IPC: H03D1/16
Filed: 1919-07-28
Abstract: 166,237. Taggart, J. Scott-. July 28, 1919. Frequency, changing.-The tuned receiving- circuit 2, 3 of a wireless receiver is connected oppositely across the grids and filaments of a pair of three-electrode valves 19, 20, the rectified currents in the plate circuits being combined in a single indicating-circuit 16. The grid potentials are adjusted to work at either bend of the characteristic curve by potentiometers 17, 18, and the plates are preferably given a potential high enough to ensure that both bends occur with negative grid potentials. The plate circuits are coupled through lonv-frequency transformers 14, 15 to the common indicating-circuit which may include a telephone 16. The two plate currents may have an additive effect in the telephone, or one may be arranged to oppose the other.
Patent GB-220148-A (GB)
Title: Improvements in or relating to vulcanizing apparatus
IPC: B29C35/00
Filed: 1923-07-20
Abstract: 220,148. Green, F. G., and Penhale, E. L. July 20, 1923. No Patent granted (Sealing fee not paid). Vulcanizing tyres.-In apparatus as described in Specification 211,687 comprising a vulcanizing plate having a series of ribs extending into a heating chamber to distribute the heat uniformly over the vulcanizing plate, a clamp straddles the beating chamber and engages a clamping plate which may also be heated, or a member fixed relatively to the article to be vulcanized. A plate 1 with ribs 2 extending into a heating chamber 3 in such a. way that hot gases from a lamp impinge upon them is held up to the work by hooked rods 10 passing through guides 11, 12 and connected by a member 13 through which passes a tightening screw 14. The rods 10 may engage a chain passing round the rim of a wheel, or they may engage projections 21 to press a clamping plate 9 to the plate 1. As shown, the plate 9 may also be provided with ribs and may be independently heated or be connected with the heating chamber 3 by a flexible pipe. The heat may be automatically. regulated by an expansion device which operates a shutter to cut off part of the flame of the burner as the temperature rises.
Patent GB-187347-A (GB)
Abstract: 187,347. Wade, H., (Lichtenthaeler, F. E.). July 27, 1921. Gases, treating with liquids.-Apparatus for the manufacture of ether comprises a plurality of conduits, through which alcohol vapours are caused to pass, each conduit having a series of intermediate chambers for the reception of sulphuric acid which flows counter-current-wise and to which the alcohol vapours are exposed as they pass through the conduits. The conduits are contained in a pressure chamber through which steam is passed in order to maintain them at the reaction temperature. The pressure chamber 32 with steam inlet and outlet pipes 34, 36 contains a number of conduits 10 each composed of a plurality of chambers 12 having retaining decks for sulphuric acid and vapour caps 15. The conduits are made tight to the top and bottom decks 20 of the pressure chamber, and a dome 38 is provided, into which the vapours pass. A steam-jacketed receptacle 40 for the spent acid also serves as a distributing chamber for the alcohol vapour through the inlet 42. A uniform level of spent acid is maintained by a drain pipe 70 surmounted bv a vapour seal 72. Sulphuric acid from a supply pipe 50 is fed to the top of each conduit through feed-pipes 52 provided with acid seals 54. The Provisional Specification refers also to the use of oil or other heating- medium in the heating jacket.
Patent GB-571928-A (GB)
Title: Travelling conveyor trays
IPC: B65G17/06
Filed: 1943-11-11
Abstract: 571,928. Conveyers. MELVIN & GILLESPIE, Ltd., and HALL, W. A. Nov. 11, 1943, No. 18751. [Class 78 (i)] In endless chain conveyers provided with a series of swinging trays, each tray is supported at at least one side by a pivot mounted in the chain and having a readily disconnected plug-and-socket coupling connection with the tray. In one construction the pivot 6, Fig. 2, is formed with a tapered head 9, Fig. 7, which engages with a similarly shaped socket in a member 3 provided on the tray 1. In another construction a tapered member 14, Fig. 8, on the tray is received in a socket formed in the head of the pivot. This member may be made cylindrical instead of taper in which case it is formed with an enlarged head to bear on the top of the socket and is held against accidental displacement by a grub screw. The rollers 7 of the chain 8 are guided by strips 12, 13 provided on the angle-irons 11.
Patent GB-404725-A (GB)
Title: Improvements in electric starting motors for internal combustion engines
IPC: F02N11/08
Filed: 1932-07-02
Abstract: 404,725. Turning-gear. KAUFMANN, A., Zuchwil, Solothurn, Switzerland. July 2, 1932, No. 18760. [Class 7 (v).] In an electric starter in which the pinion 2 is mounted on an axially displaceable shaft 1 extending through the armature of the starting motor and connected to the armature shaft 20 by an overrunning clutch 21 and a multiple-disc clutch 22, a device is provided for turning the shaft 1 if the teeth of the pinion 2 clash with those of the engine flywheel. The shaft 1 is displaced axially by a lever 17 bearing against a conducting bridge 13 carrying a contact 15 for engagement with a contact 16 to switch on the motor ; the bridge 13 engages the shaft 1 by means of a rod 18 and spring 19. A steep-threaded nut 4 engages a sleeve 3 fixed on the shaft 1, the nut being engaged by a pair of brake discs 6, 7 sliding on bolts 14 connected to the bridge 13. If the teeth of the pinion 2 clash with those of the flywheel, the nut 4 is displaced axially in relation to the shaft 1 and imparts a turning movement to the shaft to effect meshing. When the pinion is fully in mesh, a pawl 9 pivoted on the disc 6 encounters a shoulder 11 on a rod 10 and separates the discs 6, 7, allowing free rotation of the shaft 1 and the pinion. A slight further movement of the lever 17 and the bridge 13 then closes the starter switch contacts 15, 16.
Patent GB-241327-A (GB)
Title: Telegraph signalling systems
IPC: H04L15/18
Filed: 1924-08-07
Abstract: 241,327. Western Electric Co., Ltd., (Western Electric Co., Inc.). Aug. 7, 1924. Automatic telegraphs; curbing at transmitter; perforated strip transmitters; systems using code elements distinguished by polarity of current.- In a telegraphic transmitter the movement of a diaphragm operated by pressure changes controls the position of a movable contact with respect to a fixed contact. Contacts 12, 16 on diaphragms 10, 11 are normally held in engagement with fixed contacts 13, 17 by the pressure in a chamber 5 maintained by a compressor 40 driven by a motor 41. The contacts may be maintained open by suction instead of closed by pressure and other fluids than air may be used. In the apparatus shown the passage of perforations in the tape 34 over the ends of pipes 27, 31 releases the pressure and causes one or other set of contacts to open, thus causing current to flow in one direction or the other through resistance 49. For curbing the signals a commutator having an even number of segments equal to the number of projections on the star wheel 35 for feeding the tape is mounted on the same shaft 36. Alternate segments SS and TT are connected. Brush 55 is connected to ground; brush 57 is fixed with respect to brush 55 so that when the latter is on an S segment the former is on a T segment and is connected as shown and brush 58 is adjustable and connected to the cable 59. A pointer 60 may be connected to the adjusting means for brush 58 so as to indicate the percentage of curbing on a scale 61.
Patent GB-828809-A (GB)
Title: Improvements in or relating to electrical musical instrument
IPC: G10H5/02
Filed: 1956-06-18
Abstract: 828,809. Electrophonic musical instruments. GEORGE, T. J. June 18, 1956, No. 18785/56. Class 88 (2). A single Hartley oscillator 20 is used to generate oscillations for three consecutive semitones. Keys KC, KC#, KD control chain contacts L1, L2, L3 to tune a resonant circuit including inductor L to the notes C, C# or D by connecting therein condenser C1, C2 or C3. The oscillator valve T is normally biased beyond cut-off and closure of a key connects grid bias from 50 to enable the valve to oscillate. A number of oscillators 20 are connected to a common forrnant circuit 70, an amplifier 80 and a loud-speaker 90. In a modification, Fig. 2, the capacity in the tuned circuit is fixed and the key switches connect tappings on an inductor L10.
Patent GB-498601-A (GB)
Title: Improvements relating to the treatment of articles by abrasive
IPC: B24C5/06
Filed: 1937-07-06
Abstract: 498,601. Sand-blast. GUTMANN AKT.-GES. FUR MASCHINENBAU, A. July 6, 1937, No. 18819. Convention date, Sept. 8, 1936. [Class 60] In apparatus for cleaning or otherwise treating an article by directing on to it a stream of abrasive discharged from a rapidly rotating impeller, the impeller has connected to its inlet a device which, solely as the result of the suction of the impeller, mixes the abrasive with sufficient air to enable it to be drawn into the impeller. In one form, Fig. 1, the impeller 5 mounted in a casing 1 draws in air by way of an aperture 14 and pipe 13. Abrasive is fed to a hopper 15 from which it flows into the air stream by way of an adjustable opening 16. In a modified form, Fig. 2, the impeller 5 is rotatably mounted on stub pipes 21 in a casing 1<1> which in turn is mounted on a casing 1 which houses a motor (not shown) by which the impeller is rotated. Air and abrasive are conveyed to the impeller by way of pipes 32, 31, 23, and 10. The casings 1 and 1<1> with the impeller and its motor are rotated as a whole about the axis R-R by means of bevel-gearing 28, 29. Current is supplied to the motor through slip rings mounted on a pipe 25 rotating with the casing 1. The rotation of the impeller about the axis R-R causes the abrasive to sweep out a solid of revolution and impinge on all sides of the article being treated. Reference has been directed by the Comptroller to Specification 472,246.
Patent GB-310707-A (GB)
Title: Improvements relating to spectacles and eyeglasses
IPC: G02C1/06
Filed: 1928-06-30
Abstract: 310,707. Coppell, W. C. June 30, 1928. Spectacles and eyeglasses. - Spectacles or eyeglasses with non - metallic lens rims have the supporting parts, e.g. the side wires, bridge &c. provided with a metal attachment plate 5 applied to the outer periphery of the rim 1 and secured to it by tongues or prongs 6 which pass through holes and are bent down against the inner periphery of the rim 1. The placquet supports 9 may be similarly secured to the rim 1.