baber/WOPTO huggingface dataset:
Patent GB-197111-A (GB)
Title: Improvements in and relating to typewriters
IPC: B41J3/44
Filed: 1922-03-06
Abstract: 197,111. La Pegna, R. March 6, 1922. Addition to 172,653. Type-bar machines with two or more sets of type; electric driving-mechanism.-The machine described in the parent Specification is now provided with electric driving-mechanism. Typebars 26, Fig. 1, arranged in sets I, II, III, are connected by linkage 24, 51 to individual armatures 53 disposed side-by-side and in front cf a carriage 57 provided with electromagnets 58<1>, 58<11>, 58<111>, Fig. 2, which are at the same distance apart as the electromagnets associated with corresponding typebars in the sets I, II, III. The carriage is set by means of stopmechanism comprising a plate 66 secured to a rod 60 on the carriage and formed with steps co-operating with sliding-stops 67 operated by levers 68 and electromagnets 71. The carriage is drawn to the right by a spring 59 and is locked in the normal position by a hook 74 engaging a projection 71 on the rod 60 and releasable by means of lugs 76 on the stops. The carriage is returned to the normal position by means or an electromagnet 65 having an armature supported by a lever 62 connected to the rod 60. The key-levers 16, Fig. 9, have contacts 91, 92 for closing the circuits of the electromagnets 71, and the electromagnets 58', 58", 58<111> respectively. The electromagnets 58<1>, 58<11>, 58<111> are in circuit with switches 88' operated by the group-selecting keys 41, which, before the key-levers 16 are operated, are depressed to place all or selected pairs of the electromagnets 58<1>, 58<11>, 58<111> in circuit with the key-levers. The circuit of the electromagnet is closed and opened at each operation of the key-levers by means of a revoluble contact' member 82 having three equidistant contacts cooperating with the stationary contacts. The contact-member is secured to a shaft 81 carrying two six-toothed ratchet wheels engaging pawls 79, 84 respectively. The pawl 79 is mounted on spring-urged lever 77 having an arm engaging the stops 67, and the pawl 84 is mounted on a spring- urged lever 85 engaging a lug 87 on the projection 72. On operation of anv of the key-levers 16, the associated stop releases the hook 74, and the carriage 57 is moved by the spring 59 until the plate 66 engages the stop, the pawls being moved idlv. On releasing the key-lever, the con. tact member is turned by the pawl 79 and closes the circuit of the electromagnet 65, whereupon the carriage is returned, the contact-member being turned by the pawl 84 to open the circuit of the electromagnet 65. Duplicate contacts and switches may be arranged in parallel with the above-described contacts and switches.
Patent GB-972823-A (GB)
Title: Improvements in heaters for vacuum forming apparatus
Inventor: JONES-HINTON JAMES
IPC: B29C51/10
Filed: 1961-02-23
Abstract: 972,823. Vacuum forming apparatus. DUNLOP RUBBER CO. Ltd. April 12, 1962 [Feb. 23, 1961], No. 6605/61. Heading B5A. [Also in Division H5] Apparatus for vacuum forming sheets of thermoplastic material comprises a heater for softening sheets supported by a framework prior to forming, the heater comprising a substantially continuous reticulate heating element having a heating surface area substantially equal to the area within the clamping framework. In operation a sheet of thermoplastic material is clamped between upper and lower frameworks 13, 17 having heat reflecting inner surfaces 16, 16a. Electric heating elements 1a, 1b are mounted respectively on an upper vacuum box 8 and a lower support 6. Each heater comprises a plurality of strips of expanded metal 2, mounted on insulating supports 3. Both the upper vacuum box 8 and the lower support 6, carrying the heaters, may be moved horizontally on guide rails 12 and 7, away from the clamping framework, movement being effected pneumatically. The upper vacuum box 8 may also be moved vertically. The upper vacuum box 8 is evacuated to provide support for the thermoplastic sheet during heating. After the heating process, the lower heater support 6 is withdrawn, a ram 21 carrying a forming tool 19 is raised, the vacuum in the upper vacuum box 8 is broken and a vacuum created within the forming tool 19 to draw the softened thermoplastic sheet down on to it.
Patent GB-1248553-A (GB)
Title: Method of and apparatus for forming
Inventor: HARRIS JOHN VALENTINE
IPC: B21D22/10
Filed: 1970-02-11
Abstract: 1,248,553. Stamping. ROLLS-ROYCE Ltd. 11 Feb., 1970, No. 6607/70. Heading B3Q. Apparatus for forming a metal &c. blank 18 in a die 14 with an elastomeric former 20, e.g. to produce inlet and outlet ducts for flame tubes, comprises a body 32 of elastomeric material extruded through a nozzle 30 for applying the forming force to the former 20. The body 32 is contained in a housing 22 from which it is extruded by a plunger 24. The die 14 may be split or an ejector 16 provided.
Patent GB-582451-A (GB)
Title: Improvements in or relating to the electrowinning of manganese
IPC: C25C1/10
Filed: 1944-04-11
Abstract: 582,451. Electrowinning of manganese. STEVENS, A. H. (Electro Manganese Corporation). April 11, 1944, No: 6645. [Class 41] In the electrowinning of manganese from its ores, the cell 1 is divided by diaphragm 4 into the anolyte and catholyte chambers 2, 3 respectively. The catholyte passes into the chamber 2 through the overflow pipe 7 and by diffusion through the diaphragm and thence to tank 9 where it extracts the manganese ore. The liquid is then passed through apparatus 10 where it is oxidised and acted upon by ammonium sulphide, to remove iron, nickel, cobalt and arsenic. The composition of the anolyte between the chamber 2 and the tank 9 is as follows : pH 0.5-1.5 (this value changes to about 2-4 when the ore is added), 150-175 grams per litre of ammonium sulphate and preferably 13-15 grams per litre of manganese, in the form of manganese sulphate, which quantity increases to, preferably, 35-55 grams per litre in tank 9. The liquid returning to the catholyte chamber 3 still contains magnesium. This may be reduced to a maximum of 4 grams per litre by treating the anolyte in tank 12, where the pH is increased or reduced to a value between 1.5 and 2.75, With a soluble fluoride, e.g. ammonium hydrogen fluoride. Some of the magnesium is precipitated and removed by filter 15 before passing to leading tank 9. The pH of the liquid passing from this tank should be raised to between 5.5 and 7.2, preferably 5.6, before the heavy metals are removed.
Patent GB-311491-A (GB)
Title: Improvements in or relating to wrapping machines or the like
IPC: B65B57/12
Filed: 1928-03-03
Abstract: 311,491. Rose, W., and Rose Bros. (Gainsborough), Ltd. March 3, 1928. Packeting by wrapping-up.-Machines adapted to apply wrappers to a succession of similar articles are provided with means for preventing the severance of a wrapper, &c., from a web if no article is in position to receive it. The articles 22, Fig. 8, are brought by a conveyer chain 41 into position between a reciprocating plunger 18 and a pocket formed by sides 11, 12 mounted in wrapping wheel 10. Normally, the plunger advances and thrusts each article into a pocket, carrying with it a wrapper 21 fed by rollers 26, 27 and severed by a knife 23. The mechanism for detecting to presence or absence of en article and for controlling the feed of wrapping material accordingly comprises a pin 40, Figs. 3 and 8, extending through a bore in the plunger 18. When an article is present in the path of the plunger, the pin is moved back relatively to the plunger during the advance of the latter, and rotates a bell-crank lever 43 to move a rod 44 at right angles to the travel of the plunger. This causes a pawl 46 on the rod 44 to come into engagement with a roller 57, Figs. 3 and 4. The roller is mounted on one end of a. two-armed lever 55, pivoted at 56, and formed at the other end as a catch 58 engaging a stop 60 on the knife 23. The presence of an article at the charging station thus causes the parts 46, 57 to engage and to free the knife to make a cutting stroke. The knife is mounted on a vertical pivot 50 and is operated by a face-cam 53, spring 54 and arm 51. If no article is present, the pawl 46 is not advanced to engage the roller 57 and the knife cannot operate. If the detector pin 40 contacts with the part 90 of the wrapping wheel, the pawl 46 is advanced too late to engage the roller 57. The parts are re-set at each backward stroke of the plunger by fixed arms. The detector mechanism may also control wrapper-feeding apparatus such as is described in Specification 312,969.
Patent GB-903986-A (GB)
Title: Moulding foamed polymeric articles
Inventor: BROWN WILLIAM BERNARD
IPC: B29C51/14
Filed: 1960-02-26
Abstract: A sheet of foamed synthetic resin, e.g. polystyrene, polythene or polyvinyl chloride, is vacuum moulded by using an outer sheet of e.g. polythene, polyvinyl chloride, polystyrene or polymethyl methacrylate.  A porous interlayer of e.g. paper, fabric, metal foils, metal or resin filaments, glass fibre mats, or woven glass cloth may be used.
Patent GB-860071-A (GB)
Title: Silica-free welding flux
IPC: B23K35/362
Filed: 1957-03-01
Abstract: A silica-free magnetic flux for arc welding consists, by weight, of 12-40% rutile, 1-10% welding mineral fluoride, 1-10% silicon (elemental or as a ferro-alloy or as silico-manganese) or a substitute deoxidizer such as aluminium, ferro-aluminium, ferro-titanium or ferro-zirconium, 2-10% manganese (elemental or as a ferro-alloy or as silico-manganese), 0-25% manganese dioxide and/or manganese monoxide, 0-10% magnesium oxide, 0-30% alumina, 15-40% iron and/or magnetite, and a binder such as sodium silicate, sodium aluminate or potassium aluminate.  The welding mineral fluoride may be calcium fluoride or cryolite.
Patent GB-512486-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F13/00
Filed: 1938-03-04
Abstract: 512,486. Lifting jacks. LAKE & ELLIOT, Ltd., and BROOKES, W. March 4, 1938, No. 6855. [Class 78 (iii)] A lifting jack 2, mounted on an auxiliary or sub-base 6 by a centrally arranged spherical or part spherical joint 3 is also connected to the sub-base by means capable of supporting the jack in either an angular or upright position. In the illustrated forms, springs or dashpot devices acting on a number of rods 7 are arranged around and slidably carried by the jack, the ends thereof being connected to the base by spherical or like connections 8. As shown in Fig. 1, the spring 15 acts in compression between loose sleeves 11, 12 mounted on the rod between the ball 8 and an end stop 20, flanges 13, 14 on the sleeves normally engaging the walls 16, 17 of a housing 18 secured to the jack. The ball 8 engages a base member 9 having a part-cylindrical channel 10 disposed radially to the central joint 3. In a modification, the rod 7 carries a pair of compression springs acting on either side of a central abutment in the side of the jack, being enclosed by a housing. Stops 21 may be provided on the jack which, by engagement with the base limit the degree of tilting. As shown in Fig. 5, wherein the central seating is provided by a hemispherical boss 24 on the base, screws 25 may be provided to secure the jack rigidly to the base when desired. In the dashpot arrangement shown in Fig. 8, the upper end of the rod 7 is provided with a piston 30 operating in a cylinder 31 containing oil or other fluid, the opposite ends of the cylinder being in communication through a passage 37 and one-way valves 32, 34.
Patent GB-124736-A (GB)
Title: Improved Means for Effecting the Propulsion of Vehicles, Ships, Aeroplanes, and the like.
Inventor: MORIZE OCTAVE
IPC: F02K7/12
Filed: 1919-03-19
Abstract: 124,736. Morize, O. July 26, 1917, [Convention date]. Propelling.-Jet apparatus for propelling aerial vehicles comprises a combustion chamber b fed with fuel by a pump d through a tube c, and with air &c. by a compressor g through a tube f. The products of combustion pass through a nozzle i into the flared opening of an ejector a. In a modification, the intake of the ejector a is fitted with fixed vanes. The combustion chamber b may be fitted with more than one nozzle i, or the nozzle and chamber may be annular.
Patent GB-471552-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/32
Filed: 1936-03-06
Abstract: 471,552. Safety razors. CLAYTON, C. E. EVERY-. (Segal Founders Corporation) March 6, 1936, No. 6861. [Class 30] The guard is formed with a blade - locating abutment 4 which is recessed at 5, and the cap is formed with an abutment 8 complementary to the recess 5. When the blade is clamped (by known pin-andslot means) the entry of the abutment 8 into the recess 5 causes the edges of the slot in the blade to be bent, Fig. 3, so that the central portion of the blade takes on a compound flexure while the ends are bent uniformly. The usual lozenge-shaped hole in the blade is formed with transverse slots 30a, Fig. 4, to facilitate the flexing of the blade. In razors of the " one-piece " type in which the end cap 6 is pivoted to a projectible stem 11, which may be turned through a right-angle, the stem is encased in a sleeve 12 which normally renders the pivot 10 inoperative. When the stem is projected the sleeve is forced by a spriiig 15 to accompany it until a shoulderportion 14 on the sleeve meets the end of the annular part 2a of the guard 2 to arrest the motion of the sleeve and release the pivot.
Patent GB-1391603-A (GB)
Title: Elastomeric forming die pad assembly and a die pan for such  assembly
IPC: B21D5/02
Filed: 1971-03-15
Abstract: 1391603 Angular bending I MANSELL and R A BARKER 13 March 1972 [15 March 1971] 6865/71 Heading B3E A die pad assembly A co-operable with a reciprocable male die 12 comprises a pad 4 of elastomeric material which is retained in a recess of a holder 2, the recess having side walls 6 which are inclined to the thrust axis of the male die. In the embodiment shown in Fig. 1 the pad may have a pentagonal cross-section or a hexagonal cross-section, the base of the latter being defined by the dashed line x.
Patent GB-571683-A (GB)
Title: Improvements in mechanical filling of porous wood
IPC: B05D3/12
Filed: 1944-04-14
Abstract: 571,683. Wood working. FAIRWEATHER, W. C. (American Foundry Equipment Co.). April 14, 1944, No. 6895. [Class 145 (i)] A process for mechanically filling the pores of porous wood preparatory to the application of a primer, paint, lacquer or finishing coat thereto consists in depositing a dry filling powder such as silica ground to powder into the pores by the action of hard balls or steel shot, 10, Fig. 3, which have been previously coated or mixed with the dry powder 11. The balls 10 are projected by means of a bladed centrifugal blasting wheel 4, Fig. 4, at a high speed, and the wood 1 may be carried past the projected balls by means of a conveyer. Excess of powder is to be avoided. The wood may be stained during the filling process by mixing a dry colouring material such as pigments, dyes, or lakes with the powder. A wiper may remove surplus powder from the surface of the wood.
Patent GB-497521-A (GB)
Title: Device for automatically regulating the voltage of an electric power supply system
IPC: G05F1/24
Filed: 1938-03-04
Abstract: 497,521. Electricity supply ; transformers. UNION ELECTRIQUE DU CENTRE. March 4, 1938, Nos. 6899 and 6900. Convention dates, March 6, 1937 and Feb. 9, 1938. [Classes 38 (ii) and 38 (iv)] Boosting by transformers; balancing.-A polyphase induction regulator is used to introduce in series with a supply a voltage varying automatically with the load. The rotor 2 is permitted to rotate in proportion to the load current against an opposing torque supplied externally by springs 4, weights or hydraulic or pneumatic means, or internally due to iron losses or eddy currents. When using internally produced torque to balance the torque due to load currents, it is preferable to connect the primary windings to the supply mains after the secondary windings. In order to overcome the negative boosting effect in the third quadrant of each cycle which occurs in a simple arrangement of this kind, two devices are arranged with their secondary windings in series and the connections are such that their fields rotate in opposite senses. In dealing with phase-shifted currents (power-factor less than unity), a negative booster is preferably excited at a higher voltage than the positive boosting element, through a variably tapped transformer, or through a zigzag wound auto-transformer if it is also desired to balance the phases. A double apparatus giving a boosting voltage practically independent of the phase displacement of the load current has its two rotors on one shaft and angularly displaced 180‹ + the mean value of the phase shift. The negative booster elements may have a greater number of poles than the booster. Both elements can be arranged on a single magnetic circuit, Fig. 10, for example, the primary winding 21 of the booster being on the stator and its secondary 22 on the rotor, while the primary winding 23 of the negative booster is on the rotor and its secondary 24 on the stator. The primary windings are wound to produce fields rotating in the same direction. As in the double apparatus, the secondary windings, which are in series in the supply mains, are arranged to produce in the no-load position a nil resultant or a voltage in quadrature with the supply voltage. The torque produced. by the interaction of the primary windings in this arrangement may wholly or partly replace the external opposing torque since, through independent of the load, it varies proportionately with the angular displacement of the rotor due to load. To improve the operation with dephased currents, the ratio of the primary turns may differ from unity. The apparatus may operate to balance the phase voltages if used with a zigzag winding and equal turns in the primary winding.
Patent GB-121072-A (GB)
Title: Improvements in and relating to Aeroplanes, Hydro-aeroplanes and other Aerial Craft.
Inventor: WILSON WILFRED AMBROSE
IPC: B64C39/00
Filed: 1918-04-25
Abstract: 121,072. Wilson, W. A. April 25, 1918. Propelling.-In aeroplanes, hydro-aeroplanes, air-ships, &c. provided with paddle-fans at each side driven in synchronism with the main tractor or propeller, the paddle-fans are rotated by cranks and connecting-rods engaging a cam-race secured to the tractor, and a screw is provided in front of the tractor and adapted to force air rearwards against cups or the like carried by the fans. Air driven by the fans is directed under the main planes or against deflectors for increasing the lift. The fans, provided with scoop-like blades q and cups r, are driven from a cam-race d' secured to the tractor a, by means of rods g, k and cranks m. An archimedean screw a<2> forces air rearwards, which is directed by pipes w<1> into the cups r. The fans operate in chambers x leading to pipes x<1> fitted with valves x<2>, x<10>, by opening which the air may be directed under the main planes or against deflectors x<20> respectively. Louvers y' at the front of the chambers x also direct air to the pipes x<1>. A clutch may be fitted between the tractor and cam-race. The inner surface of the paddle-boxes may be lined with cork, rubber, &c. with a view to deadening the sound. Planes, construction of.-The under surface of the main planes also may be covered with cork, rubber, &c. for the purpose stated above. Parachutes.-A parachute device comprises a funnel z fitted with flaps z<2> and leading to a pipe z<1>, which is closed at the top or opens under the main planes. Aerostats.-In the case of an air-ship, air may be passed from the pipes x<1> into a bag or envelope during a descent.
Patent GB-954953-A (GB)
Title: Improvements relating to gripper type axminster carpet looms
Inventor: TIPLER FRANCIS RICHARD
IPC: D03D39/02
Filed: 1962-02-23
Abstract: 954,953. Weft patterning in gripper axminster looms. CARPET TRADES Ltd. Feb. 19, 1963 [Feb. 23,1962], No. 7056/62. Heading D1E. In a gripper type axminster loom one of two different weft yarns 22, 23 may be selected by rotation of one or other of yarn guides 18,19 to bring one of the yarns across two surfaces 16,17 and into the path of a reciprocating inserting needle 10 which has an open ended eye to carry the yarn across the shed. Selection is obtained by cams which operate guides by means of bands 25, 26.
Patent GB-439555-A (GB)
Title: A process for the intimate bonding or welding of plastic substances of different or neighbouring compositions which is applicable particularly to rubber and nitrocellulose
IPC: C08J5/12
Filed: 1934-03-06
Abstract: A cellulose-ester-containing varnish or layer is joined to a rubber base by intermediate layers of adhesive comprising (starting from the rubber base) progressively decreasing quantities of rubber and progressively increasing quantities of cellulose-ester.  Thus, one layer of adhesive consists of 9 parts of rubber, 3 parts of nitrocellulose and 88 parts of a solvent common to rubber and nitrocellulose, and a second layer of adhesive consists of 9 parts of cellulose ester, 3 parts of rubber and 88 parts of a common solvent. The solvent may be, e.g. methyl benzoate, pyridine, benzylidene chloride, or diethylamine. Natural or synthetic gums may be added to the adhesives.ALSO:A cellulose-ester-containing varnish or layer is joined to a rubber base by intermediate layers of adhesive comprising (starting from the rubber base) progressively decreasing quantities of rubber and progressively increasing quantities of cellulose-ester. Thus, one layer of adhesive consists of 9 parts of rubber, 3 parts of nitrocellulose and 88 parts of a solvent common to rubber and nitrocellulose, and a second layer of adhesive consists of 9 parts of cellulose ester, 3 parts of rubber and 88 parts of a common solvent. The solvent may be methyl benzoate, pyridine, benzylidene chloride, or diethylamine. Natural or synthetic gums may be added to the adhesives.
Patent GB-1127621-A (GB)
Title: A refractory block and method of lining a metal ladle
Inventor: CLARKE PHILIP HUBERT
IPC: F27D1/04
Filed: 1965-02-19
Abstract: 1,127,621. Refractory bricks. COALMOOR REFRACTORIES (HORSEHAY) Ltd. 11 Feb., 1966 [19 Feb., 1965], No. 7191/65. Heading F4B. The lining of a ladle for molten metals, is made of refractory blocks each having two flat parallel longitudinal faces (5, 6) disposed opposite one another, the other two longitudinal faces 7, 8 of the block being respectively slightly convex and flat, whilst the ends 9, 10 are respectively slightly concave and slightly convex and have the same radii and equal centres of curvature, the latter being displaced to opposite sides of the longitudinal axis of the block. The lining is constructed in helical form using a suitable set of starting blocks and the blocks are arranged with either the flat or the convex longitudinal face adjacent the wall of the ladle depending on the curvature of the same.
Patent GB-1095645-A (GB)
Title: An improved roof construction
IPC: E04B7/12
Filed: 1965-02-19
Abstract: 1,095,645. Roof beams. EMCH & BERGER INGENIEURBURO G.m.b.H. Feb. 19, 1965 [Feb. 24, 1964], No. 7195/65. Heading E1W. A beam for use in. north light roof constructions has a hollow rectangular section with the lower short side 2 extended to support the glazing 7, and a groove at the upper end of the long side 1 to support the upper edge of the adjacent glazing. The beam may have an internal transverse reinforcing web 5.