baber/WOPTO huggingface dataset:
Patent GB-1057657-A (GB)
Title: Manufacture of rigid foamed vinyl chloride polymers
Inventor: FRANK WHITLEY LORD LESLIE BUDW
IPC: C08J9/00
Filed: 1964-05-19
Abstract: Rigid cellular structures based on polyvinyl chloride are made by forming a plastisol by mixing polyvinyl chloride or a copolymer containing a major proportion of vinyl chloride, a polymerizable plasticizer for the polymer, which is a bis-ester of a dicarboxylic acid and an unsaturated alcohol, a blowing agent and, if desired, a polymerization catalyst for the plasticizer, and then heating so as to bring about in sequence gelling of the plastisol, foaming of the gel and polymerization of the plasticizer.  The platicizer preferably has a boiling-point above 250 DEG  C., and is polymerizable in the range 120-220 DEG  C.  Suitable co-monomers for use with the vinyl chloride are methyl acrylate, vinyl acetate, and acrylonitrile, and suitable polymerization catalysts are those of the free radical type, e.g. t-butyl perbenzoate. The plastisol may be heated by spreading it on a suitable substrate which is conveyed continuously through an oven, the oven having suitably placed heating elements so that the plastisol is subjected to the desired temperature conditions.
Patent GB-1396454-A (GB)
Title: Method and apparatus for producing metal by electroreduction
IPC: C25C3/20
Filed: 1973-05-01
Abstract: 1396454 Preventing anode effect in melt electrolysis NATIONAL-SOUTHWIRE ALUMINIUM CO 1 May 1973 [18 Oct 1972] 20588/73 Heading C7B In the electro-reduction of Al 2 O 3  dissolved in cryolyte, the cell voltage is monitored to indicate the onset of the anode effect. When the voltage reaches a predetermined value the frozen surface of the cell is broken to allow Al 2 O 3  to pass into the electrolyte to counteract the anode effect. In cell 9 the voltage between anode 15 and cathode 11 is intermittantly sensed by gate circuit 34, the voltage signal being passed by limiting amplifier 36 to the anode effect detector 48 which conducts when the voltage exceeds 7À5 volts its Zener breakdown voltage. The anode effect detector 48 supplies a signal to the digital signal source 52 which produces a series of digital command signals to the command decoder 55. This causes the crust to be broken by breaker bars 25, 27, Al 2 O 3  to be supplied through feeders 24, 26 and the anode 15 to be advanced.
Patent GB-480681-A (GB)
Title: Improved processes for producing light weight stones
IPC: C04B28/18
Filed: 1936-07-25
Abstract: In the production of light-weight stone products by the steam induration of a mixture comprising lime or lime and cement other than slag cement, finely dispersed siliceous materials such as clay or finely ground sand, an aggregate if desired, and the minimum of water necessary to form a homogeneous working mixture, the plasticity of the mixture is regulated by the addition of one or more plasticizing substances, e.g. sugar, which depress the formation of gels in the mixture and minimize the formation of micropores in the final product.  Examples of plasticizing substances are (a) protective colloids, e.g. glue, gelatine, soaps, soluble silicates, emulsions of resinous and fatty acids, spent sulphite and sulphate liquors, (b) peptizers, e.g. alkali carbonates, amines, (c) buffering substances, e.g. alkali borates or phosphates, ammonium salts, and water soluble salts of organic bases, (d) substances which increase the solubility of lime in water, e.g. sugar, glycerine, ethylene glycol, sulphonic acids, and (e) substances which have an inhibitive action on the hydraulic reaction, e.g. calcium acetate, borax, ammonium carbonate, sodium phosphate, potassium bicarbonate, sodium bicarbonate and acid ammonium phosphate.  When sugar is used, a substance which accelerates the hardening, e.g. calcium chloride, sodium chloride, or water glass, is preferably added to prevent melting during the early stages of the steam induration.  The invention is also applicable to mixtures containing cement without lime, except that in this case, when sugar is used as the plasticizing agent, it must be accompanied by an accelerator, e.g. calcium or sodium chloride, or by trisodium phosphate or borax as an auxiliary plasticizer.  In an example, a mixture of 196 kgs. of Portland cement, 40 kgs. of lime, 580 kgs. of finely ground sand, 340 kgs. of water, 350 gms. of sugar and 1 kg. of trisodium phosphate is made porous by known methods and hardened by steam induration.  Other examples are given.  Specification 436,105 is referred to.
Patent GB-507975-A (GB)
Title: Method of and apparatus for manufacturing diamond cutting tools
IPC: B24D18/00
Filed: 1938-07-12
Abstract: 507,975. Casting- machines; casting composite articles. SMIT & SONS, Inc., J. K. July 12, 1938, No. 20619. Convention date, March 29. [Class 83 (i)] In a method of casting diamond cone bits and the like, the cutting stones are supported by a die plate radially displaced from an axis about which it is revolved, the plate being generally tangential to its path of revolution and arranged in association with a mould into which molten metal is poured during revolution of the whole assembly about the said axis whereby the molten metal is forced by centrifugal action against the stones to anchor them in position. Mounted at the centre of a turntable 2 is a block 8 provided with a funnel shaped cavity 12 leading to a horizontal passage 14 communicating through a sleeve 16, yoke 18 and guide tube 20 with a mould 24 mounted in a block 44 bolted to the edge of the turntable. On the end of the tube 20 and extending into the mould is a bit coupling 22. The mould is closed at its outer side by a dieplate 32 provided with stone receiving openings 34, an end plate 36 and a plug 52, all these members being clamped together by means of a clamping plate 42 and screws 48, 50. Beneath the turntable is a stationary table 64 carrying a block 66 on which rotates a block 74 attached to the drive spindle 4 of the table 2. Circular grooves 70, 76 in the blocks co-operate to form a gas channel connected at one point to a suction line 80 and at another point to a line 82 (not shown) passing through the turntable and being connected by a hose to an opening 40 in the plug 52. Other grooves 72, 78 in the block 66,.74 form a channel connected to a supply line 86 for inert gas and through a line 88 and hose 90 (not shown) to an annular chamber 94 around the top of the opening 12 in the blocks 8. In operation the stones are secured in the dieplate openings by wax or adhesive, inert gas is drawn through the apparatus from the chamber 94, cavity 12, pipe 2 and through the mould and spaces between the stones and the dieplate openings. Molten metal is then poured into the cavity 12 and is forced by centrifugal action against and around the stones. The coupling 22 is formed with orifices by which it is keyed to the casting which is given its final shape by machining.
Patent GB-329558-A (GB)
Title: Improvements in or relating to mechanical refrigerating apparatus
IPC: F25B1/04
Filed: 1929-07-05
Abstract: 329,558. Koover, Ltd., (Hoover Co.). July 5, 1929. Refrigerating, compression machines for.-Air cooled condensers comprise one or more coils 15, 16, surrounding the motor-compressor unit 10, 13, with tubular baffle member 17, 18, surrounding each coil. The outer tubular member is preferably closed at one end by a cap 19. The motor shaft carries a centrifugal fan 20 directing a current of cooling-air over the coil surfaces. The apparatus may be mounted vertically, the fan then being dispensed with.
Patent GB-367294-A (GB)
Title: New or improved process of preparing cooked meats
IPC: A23L13/00
Filed: 1931-07-20
Abstract: Meat such as beef, mutton, pork, and veal is partly cooked and then sliced, the slices are assembled face to face and the cooking is completed, the juice liberated by the meat forming it when cold into a coherent mass which can readily be separated into slices. Gelatine may be added after slicing to improve adhesion.  The partly cooked sliced meat may be packed in a can or other container which may be lined with fat, or the meat may be covered with bread crumbs, gelatine, &c., after which the cooking is completed and the container sealed.
Patent GB-980152-A (GB)
Title: Improvements in or relating to container closures
IPC: B65D1/10
Filed: 1963-05-23
Abstract: 980,152. Moulding containers. FMC CORPORATION. May 23, 1963 [Aug. 3, 1962], No. 20661/63. Heading B5A. [Also in Division B8] A container is made and filled with liquid simultaneously in a mould, by liquid passing through a three-way valve 22, and then through a nozzle 21 to expand a closed mass of plastics material 25 to the shape of a hinged mould 26, additional plastics material being admitted through a conduit 24 to a concentric device 23 and hence to the inside of the mould. When the liquid reaches the level of the top of the neck of the container the valve shuts off the liquid and admits air or gas under pressure to complete the filling of the mould. The top of the container is sealed by a pair of plates pinching the plastics material and also providing another closed mass of plastics material for use in moulding a further container. The plastics material sets to form a resilient structure.
Patent GB-1429040-A (GB)
Title: Foldable rigid bent wire or rod support for suspended files
IPC: B42F15/00
Filed: 1973-05-01
Abstract: 1429040 Filing paper ING C OLIVETTI & C SpA 1 May 1973 [3 May 1972] 20672/73 Heading B6E A foldable wire support for suspended files comprises an upper frame 1 interconnected to a lower frame 3 by a pair of pivotably mounted uprights 2, the uprights being rotatable on the upper frame within the limits of stop means and the lower frame having clasping means to retain the uprights substantially at right angles to the lower frame. The upper frame comprises two rectangular skeletons welded together at their points of contact 14. Each upright 2 has two eyes 15, engaging on the upper frame so as to enable the uprights to be pivoted with respect to the upper frame until bends 16 engage the sides 6, 7 of the frame. Bends 17, 18 are also provided in the uprights which are engaged in clasping means formed by bends 20 in the lower frame. For folding, the uprights are disengaged from the lower frame and rotated through 270 degrees to lie in the plane of the upper frame. The wire may be plastics coated. Rods 25 may facilitate file suspension.
Patent GB-837890-A (GB)
Title: Steering wheel mounting for a clock
IPC: B62D1/10
Filed: 1957-07-01
Abstract: 837,890. Mounting instruments. HOF, E., and SASSELLA, C.E.A. July 1, 1957 [July 5, 1956], No. 20769/57. Classes 79(3) and 136(1) [Also in Group XVIII] Relates to a clock 6 in a housing 3 mounted in the centre of the steering wheel of a motor vehicle where the housing is an open-ended hollow body having mounted at its one end the clock with, interposed, a transparent plastic ring 10 and removably secured at its other end a plate 4 on which is a movable horn contact 14 and, electrically connected with it and its electric lead 27, a bulb 18 that illuminates the clock. The clock is attached to housing 3 by clips 7 with screws 8 that also secure the clock crystal 9 above the transparent ring 10 that admits illumination from the bulb 18 to the clock face. The plate 4 is connected to the housing 3 by grub-screws. It is attached to a plate 11 by bolts 13 passing through spacers 33 that form part of the horn operating ring 34. The plate 11 supports the insulated contact 14. Another plate 12 fixed to the steering-head casing 1 by grub screws movably mounts the plate 11 on large-headed pins 19, 20, 21, screwed into the latter plate; the two plates being urged apart by springs 22, 23, 24, except when the horn operating ring 34 is pressed down. The lead 27 supplies current through a spring contact 28-28<SP>1</SP> to a switch 32 (Fig. 3, not shown) for the lamp bulb 18 as well as to the horn contacts. Specification 777,897 is referred to.
Patent GB-189498-A (GB)
Title: Means for converting rectilinear into rotary motion
IPC: G01C17/12
Filed: 1921-08-04
Abstract: 189,498. Carpmael, W. P., (Johansson Inc., C. E.). Aug. 4,1921. Indicating.-In means for converting the small rectilinear reciprocation of a rod into an extended oscillation on a fixed centre of a driven arm, stated to be applicable to linear-measuring gauges &c., a flexible element extends along and connects the coasting surfaces of the reciprocating member and a rocking member connected to the driven arm. The reciprocating rod 1 is adjustably secured to a sleeve 2 to which is secured a clamp 16 sliding in adjustable guides 55, 56 and carrying a square-ended bar 18, 19, adjustably secured therein by a clamping screw 21. A flexible band 26 is adjustably secured by clamps 28, 27 to the bar 18 and to a roller 22 turning on a fixed centre 30, the band causing oscillation of the roller as the bar reciprocates and bearing on a strip 23 which is screwed to the roller at one end and at the other bears freely against a taper headed screw 25, adjustment of which expands or contracts the strip 23 to vary the throw of the roller 22. Adjustably secured to the roller 22 by a screw 31, is an arm 29 with a segmental end 33 driving a second roller 34 by a band 35. similar to the first, while a second arm 42 secured to the roller 34 drives a third roller 43 to which is secured the oscillating arm 50 forming the driven member of the train. A coiled spring 57 secured to the roller 43 and to a fixed stop 52 restores the parts after each driving movement of the rod 1, the stop 52 engaging a projection 53 on the rod 50 and a stop 54 engaging the clamp 16 to limit movement in each direction. The rod 1 is adjusted in the sleeve 2 by a screwed rod 3 controlled by a head 12 and is clamped therein by a split washer 6 and conical sleeve 7 tightened by a nut 8 screwing on the end of the sleeve 2.
Patent GB-688654-A (GB)
Title: Improvements in or relating to draught excluders
Inventor: CHEETHAM JOHN LEES
IPC: E06B7/20
Filed: 1950-08-23
Abstract: 688,654. Draught excluders. SMITH, SLATER, Ltd. July 20, 1951 [Aug. 23, 1950], No. 20818/50. Class 20(iii) A wooden bar 1 screwed to the bottom,. on the outside, of a door 4 has a depending portion 6 which is rebated at 8 to receive one, or more, butt hinges 9 which carries,. or carry, a wooden draught excluding strip 2. The strip 2 is either top heavy relative to the hinge axis and/or, the latter is horizontally offset with regard to the centre of gravity of the strip, the weight of the strip exerting a movement about the hinge 9 to lift the strip into its inoperative position, Fig. 3. For an outwardly opening door the strip is urged into an operative position, Fig. 2, as a catch 15 fixed to the strip above its axis engages the door jamb. In the case of the door opening inwardly the strip is adapted to engage an abutment fixed to the jamb of the door below the axis of the strip 2. The floor engaging part of the strip has a groove 14 of capillary dimensions. As an alternative to the groove 14, the strip 2 may be provided with a rubber, or felt, weather strip.
Patent GB-1424363-A (GB)
Title: Tape transport system
IPC: G11B15/46
Filed: 1973-05-02
Abstract: 1424363 Automatic control of speed  BURROUGHS CORP 2 May 1973 20840/73 Heading G3N [Also in Division H2] Magnetic tape MT is wound from a supply reel Rs to a drive reel Rd by a hysteresis synchronous motor M driving the reel Rd, each of the motor quadrature windings Mb, Mc being fed with a  respective pulse train V B , Vc having the same frequency and pulse width and a mutual phase displacement of 90 degrees, these pulse trains being derived from a pulse train VA whose repetition rate is varied in response to the change in the effective radius of one of the reels to maintain a constant linear tape speed. The radius chosen is that of the drive reel Rd, in which case the repetition rate is varied in inverse proportion to its effective radius. A counter 12 produces a value proportional to this radius by virtue of its input from a divider circuit 8, which uses the pulses VA to derive the number of revolutions of the reel Rd from an initial condition and house the increase in radius due to the successive thicknesses of tape wound thereon. The output of counter 12 is fed through a D/A circuit 14 and inverting amplifiers 18, 20 to the base of a transistor Ql which controls a monostable oscillator 26 driven by an external oscillator 28, the output of oscillator 26 being a pulse train whose period is inversely related to the radius analogue signal fed from transistor Q1. After integration in circuit 32 and amplification in a non-inverting amplifier 34, the output from oscillator 26 is applied to voltagecontrolled oscillator 36 which produces the pulse train VA for the motor control and supply system 2. This system is shown in Fig. 2 and uses a circuit arrangement of a flip-flop 40, NAND gates 46, 52 and an OR gate 48 to derive the pulse trains V B , V C  from the train V A , the latter having twice the frequency and half the pulse width of the former, Fig. 3 (not shown). Each pulse train V B , V C  is applied to the motor windings Mb, Mc through respective amplifiers comprising transistors Q2, Q3, Q4, Q5 and Zener diode D1. A typical operation of the arrangement 40, 46, 48,52 is described, the pulse trains V B , V C  being maintained 90 degrees out of phase irrespective of the frequency variation.
Patent GB-827901-A (GB)
Title: Preparation of aluminium alcoholates
Inventor: ALDRIDGE CLYDE LEE
IPC: C07C29/54
Filed: 1957-07-02
Abstract: Hydrolysis of aluminium alcoholates of formula <FORM:0827901/III/1> in which R4, R5, R6 are alkyl radicals having from 2 to 30 carbon atoms, by water, steam, acid or ammonia, gives the corresponding alcohols and beta-alumina trihydrate.  The beta alumina trihydrate may then be calcined to give eta alumina. Specification 808,055, [Group IV (b)], is referred to.ALSO:An aluminium alkyl of formula <FORM:0827901/IV (b)/1> in which R4, R5 and R6 are alkyl radicals containing 2 to 30 carbons is rapidly oxidized with an oxygen-containing gas at a pressure of 50-1000 p.s.i.g. to give the corresponding aluminium alcoholate of formula <FORM:0827901/IV (b)/2> The oxidizing gas may be air or any other oxygen-containing mixture. A diluent such as an inert hydrocarbon or halogenated hydrocarbon may be present.  The aluminium alcoholates so obtained may be hydrolysed to give the corresponding alcohols and b -alumina trihydrate.  The hydrolysis may be carried out by treatment with water, aqueous acid or ammonia.  Specification 808,055 is referred to.
Patent GB-710239-A (GB)
Title: Improvements in or relating to electric hand drilling and like tools
IPC: B23B45/00
Filed: 1952-08-21
Abstract: 710,239. Electric motors. DUSS, F., [trading as DUSS MASCHINENFABRIK, F.]. Aug. 21, 1952 [Aug. 25, 19511, No. 21023/52. Class 35 [Also in Group XXII] In a portable electric drill the magnets 4 of the motor are supported in the housing by insulating washers 20 and the shaft bearings 23 are supported in insulating bushes 24. The gearing, which may be 2-speed, is arranged between the motor and the handle and a flexible shaft can be coupled to the motor shaft when cap 18 is removed.
Patent GB-1390814-A (GB)
Title: Desulphurizing process for a molten pig iron and a desulphurizing agent
IPC: C21C1/02
Filed: 1972-05-05
Abstract: 1390814 Desulphurizing agent AIKOH CO Ltd 5 May 1972 [8 May 1971] 21102/72 Heading C7M A desulphurizing agent for molten pig iron comprises in wt per cent. 32-65 Na2 CO 3 , 5-45 NaOH and 10-30 water. It may also contain up to 20 CaCO 3  and/or Ca (OH) 2 , up to 18 of at least one of Ca B 4 O 7  À 6H 2 O, CaB 4  O 7  À 4H 2 O, Na 2 B 4 O 7 , Na 2 B 4 O 7  À 1DH 2 O, or CaF2 and 4-12 of Portland cement, blast furnace cement, white cement, iron cement or alumina cement. The agent is formed by mixing the components in air, preferably for 5-15 mins. until a part or the whole of the NaOH is converted to Na 2 CO 3 . The desulphurizer is either added to the ladle prior to adding the molten pig iron or to the pig iron while it is being blown with nitrogen.
Patent GB-642236-A (GB)
Title: Improvements in fasteners for doors, windows and other closures, and in means for locking the same
IPC: E05B13/10
Filed: 1948-08-12
Abstract: 642,236. Casement fastenings; locks. PARKES & SONS, Ltd., J., CRITTALL MANUFACTURING CO., Ltd., BUTTER, F. J., and ORDIDGE, E. F. Aug. 12, 1948, No. 21254. [Class 44] In a window or door fastener of the kind having a pivoted handle and a short projecting arm engaging in a keep or bracket on the frame of the window, &c., the handle is integral with or secured to a hollow cylindrical boss rotating on a fixed sleeve, and a barrel or plug of a tumbler lock mechanism is mounted for rotation or for endwise movement, or both, in the sleeve, and is normally locked against movement but released by a key, and means operated by rotation or end movement of the barrel are provided to lock the handle boss to the sleeve. In the form shown in Fig. 1. the handle boss 1 is mounted on a sleeve 4, a spigot 4x of which is secured in a mounting plate, and a keyoperated plug 5 of the flat tumbler type, housed in the sleeve 4 has an eccentric 7 which engages in a transverse bolt 9. In locked position the plate tumblers of the plug enter one of the slots 6 in the sleeve, and the bolt, which slides in radial bores in the sleeve, engages in a recess 10 in the boss. In the form shown in Figs. 4 and 5, a plate 12 is secured to the inner end of the plug 5, one end of the plate projecting through a slot in the sleeve 4 into a longitudinal groove 13 in the boss 1. The tumblers 14 of the plug each enter a separate hole in the sleeve 4. When the tumblers are withdrawn, the plug is pressed forward by a spring 16, and the end of the plate 12 comes opposite an annular groove 17 formed in the bore of the boss 1. so that the handle is free to turn. When the handle is turned back to the fastening position, pressing back the plug causes the tumblers to snap into the holes in the sleeve to lock the boss again. In another modification, the plug is formed with a cam shaped recess which cooperates with a ball located in a hole in the sleeve and projecting in the locked position into a recess in the boss; on rotation of the plug by the key the ball drops into the deeper part of the cam slot and frees the boss. In another form, release of the plug 5, Fig. 11, by withdrawal of the tumblers 14 from holes in the sleeve 4 allows the plug to be pushed forward by a spring 16, and a ball 20 located in a bore 24 in the sleeve and engaging in a recess 25 in the boss slides down a chamfered part 26 of the inner end of the plug.
Patent GB-899646-A (GB)
Title: Improvements in vacuum forming
Inventor: ALEXANDER HARRY
IPC: B29C43/12
Filed: 1959-06-22
Abstract: 899,646. Vacuum-moulding thermoplastic sheet material. ALEXANDER & CO. Ltd., S. M. Sept. 9, 1960 [June 22, 1959], No. 21295/59. Class 87 (2). [Also in Group VIII] A sheet 11 of thermoplastic material, which is air-permeable, is clamped to a mould box 9 by a frame 10, heated by an electric heater 14, a membrane 18 is clamped over the sheet, and suction applied to mould the sheet. In modifications, the membrane may be placed over the sheet before heating or the membrane and the sheet may be positioned between upper and lower heaters prior to positioning over the mould. The membrane may remain in contact with the sheet as part of the finished moulding. Reference has been directed by the Comptroller to Specification 822,609.