baber/WOPTO huggingface dataset:
Patent GB-1310573-A (GB)
Title: Multi-position electric switches
IPC: H01H19/58
Filed: 1970-03-10
Abstract: 1310573 Rotary switches; inductors CTS CORP 10 March 1970 [10 March 1969] 11411/70 Headings H1N and HIT In a multiposition rotary electric switch an annular stator 13, Fig. 4, of insulating material carries a number of individual contact elements 14a and an arcuate common contact 17 all with portions lying on a substantially common radius for engagement by contacts 21b attached to a rotor 22. Additional contacts 14b may also be arranged in the circumferential region of the arcuate contact 17 but lying on a larger radius for engagement by further contacts 21a on the rotor, some of which may engage outer regions of the contacts 14a. The rotor contacts 21a, 21b may be formed from a single flat strip (21), Fig. 6 (not shown), having a multiplicity of 21a, 21b, the unwanted contacts being removed before the desired contacts 21a, 21b are bent at right angles and the strip bent to arcuate form. An arcuate strip may be located in slots of a pair of rotary members 22a assembled together by rivet pins 25 whereby pairs of rotor contacts 21a, 21b, Fig. 2, engage opposite sides of the fixed contacts 14a. A variable inductance is described in which U-shaped inductances 18, Fig. 5, with slots 18a of differing depths to give desired inductance values are arranged in series between the fixed contacts and connected together by U-shaped members 20. Bending of the inductances and varying the lengths of slots 20c also varies the inductance desired between each pair of contacts. Additional inductance coils (not shown) may also be connected across adjacent terminals. The switch assembly may be mounted in housing channels (not shown) engaged by reduced end portions 15a, 16a. An alternative embodiment is described in which the stators have apertured lugs (111), Fig 8 (not shown), for securing rods.
Patent GB-708268-A (GB)
Title: A process for increasing the strength and durability of textile fibres and fabrics
Inventor: NICOLAU LUIS LLOBET
IPC: D06M13/02
Filed: 1951-05-16
Abstract: Textile fibres and fabrics are given an increased strength and resistance to wear by immersing them in an alcoholic solution of pinene hydrochloride, then treating with a hot aqueous solution of caustic soda or Solvay's soda, whereby hydrochloric acid is neutralized and camphene is formed within the textile, then treating with a solution of potassium permanganate in acetone to oxidize the camphene to camphenolide and camphor, then treating with an alcoholic solution of ethyl- or other alkyl-nitrate to improve the distribution of the products within the fibres and finally drying.  An aqueous emulsion of olive, copra, almond, peanut or sesame oil may be added to the soda solution so as to form a soap with a part of the soda. The ethyl nitrate solution may, due to hydrolytic action, contain some free nitric acid, which serves gently to complete the oxidation.
Patent GB-1508707-A (GB)
Title: Apparatus for making a foamed plastics material
IPC: B29C44/34
Filed: 1976-03-22
Abstract: 1508707 Injection moulding foam plastics EX-CELL-O CORP 22 March 1976 [2 June 1975] 11415/76 Heading B5A [Also in Division C3] Plastics materials are foamed and moulded in an apparatus comprising a passageway comprising a wall bounding a chamber and plasticating means associated therewith for plasticating a plastics material while simultaneously causing same to travel through the passageway; a source of gas inert to the plastics material and having at least one gas outlet; conduit means connected to the passageway through the said at least one gas outlet for routeing the gas to the passageway, the conduit means projecting beyond the wall into the chamber with the gas outlet offset from the wall into the path of plasticated material through the chamber; a check valve in the conduit means and oriented to permit passage of the gas to the passageway but to prevent passage of plasticated plastics material in the reverse direction; means operatively associated with the conduit means for supplying a train of discrete gas pulses from the source through the conduit means to the passageway at a gas pulse pressure sufficiently exceeding the instantaneous plastics material pressure as to inject a discrete quantity of gas into the material travelling past the gas outlet, and at a gas pressure between pulses sufficiently lower as to stop gas entry into the material, the supplying means comprising an intermittent output, positive displacement pump and pump drive means operable for repetitively cycling the pumpat a gas pulse frequency which is related to the rate of flow of material in passageway and which is sufficiently high to introduce the required number of bubbles of gas into the material, the gas pulse frequency being synchronized with the rate of gas bubble ejection at the outlet, the quantity of gas per bubble being controllable, and the volumetric capacity of that portion of the conduit means between the check valve and the passageway being less than the volumetric capacity of the pump. The apparatus may consist of a plasticating chamber 2 (Fig. 1) containing a rotatable screw 3 to which plastic, e.g. polystyrene, pellets are supplied from hopper 4 and the pellets are heated while passing via relief valve 11 and check valve 12 to injection cyclinder 14; with valve 22 closed automatically by control 15A actuated by ram 16, the plastic pushes the ram back until switches 19 and 21 are actuated thereby stopping screw 3, opening valve 22 and advancing ram 16, by power means 15, to drive the plastic into the mould 26; at the end of its advancement stroke the ram actuates switches 46 and 47 which start the screw drive 7 and the pump 38 and closes valve 22; gas is injected by a piston or diaphragm pump 38 (Fig. 2) via pipe 34 and check valve 36 into chamber 2 by a pipe 37 which extends into the chamber and the gas forms separate bubbles in the plastic. The pipe end 37 may define nozzles of various designs (Fig. 3, not shown).
Patent GB-648242-A (GB)
Title: Graphitic alloy steels and nitrided products made therefrom
IPC: C23C8/00
Filed: 1945-05-04
Abstract: A graphitizible alloy steel has the following composition C 1.0-2.0 per cent, Mn 0.2 -1.0 per cent, A1 0.5-2.5 per cent, Si 0.5-1.75 per cent, Cr 0.2-1.0 per cent, Fe, with the usual impurities, the remainder.  The alloy may also contain one or more of the following elements: V 0.1-0.3 per cent, Zr up to 0.5 per cent, Nb up to 0.3 per cent and Cu 0.25-1.5 per cent.  The steels are graphitized by heating to above the AC3 point for sufficient time to produce an austenitic structure, cooling rapidly to room temperature and heating to a temperature near to but below the Ac point for sufficient time to graphitize the steel leaving 0.2-0.8 per cent of combined carbon. The steel so treated may be nitrided by heating in contact with a nitrogen-liberating agent for sufficient time to produce a nitride case of the desired depth.  Specifications 338,655, 344,500 and 443,446 are referred to.
Patent GB-114918-A (GB)
IPC: B21D53/00
Abstract: 114,918. Berry, H. H., and Neal, W. H. May 4, 1917. Electric fittings.-Comprises a press tool for forming metal clips for electric switches in which the strip a, Fig. 11, is first bent to a U-shape b, then has its sides inclined as at c and pressed as at d, and is finally bent to the form shown at f. The head A of a fly-press carries a punch B which bends the strip to a U-shape after the rod has been fed against a stop C, and the strip is cut off by blades C carried by the head. On the descent of the head, cams J act as plungers K and incline the sides, the head then descends, the punch B yields owing to the withdrawal of a detent in the head and the ends are flattened as shown at d, Fig. 11. A stripper D, Fig. 8, then moves the clip to a die E at the front of the machine. On the next downward movement of the press head, a die E bends the strip to the shape shown at f, Fig. 11, and a stripper G finally removes it. A hole in the clip is produced by a punch P.
Patent GB-473973-A (GB)
Title: Improvements in or relating to the separation of constituents of different specific gravities
IPC: B03B5/44
Filed: 1936-04-22
Abstract: Aqueous suspensions for use in the gravity separation of constituents of different specific gravities are stabilized by the addition of finely ground magnesium silicates, preferably silicates having a lamellar cleavage such as talc, serpentine, steatite, and asbestos. Galena suspensions and barytes suspensions are referred to.  When talc is added to a galena suspension the amount of talc added is about 20 per cent by volume of the galena.ALSO:Aqueous suspensions for use in the gravity separation of constituents of different specific gravities are stabilized by the addition of finely ground magnesium silicates, preferably silicates which have a lamellar cleavage such as talc, serpentine, steatite, and asbestos.  Galena suspensions for separating ores and barytes suspensions for separating coal are referred to.  When talc is added to a galena suspension the amount of talc added is about 20 per cent by volume of the galena.
Patent GB-669851-A (GB)
Title: Improvements in or relating to elastic garments
IPC: A41C1/02
Filed: 1949-04-30
Abstract: 669,851. Corsets. EVERLASTIC, Ltd., and RAYNOR, H. A. April 28, 1950 [April 30, 1949], No. 11553/49. Class 141. [Also in Group VIII] A two-way stretch girdle knitted of textile and elastic threads has a band at one or each end incorporating laid-in elastic thread and in which the knitted loops are formed entirely of non-elastic thread so that the band is stretched in the direction of the width of the garment only. As shown, the lower band 2 preferably one-fifth of the length of the garment, comprises ribknitted courses A, B, C, D of non-elastic threads 5, an elastic weft thread 6 being laid-in in the courses B. In the major part 8 of the garment, an elastic thread 7 replaces the inelastic thread in course D, the two yarns being knitted together in several wales E, the laid-in elastic thread 6 also being provided in the courses B. The upper band 9 is knitted in the same way as the band 2. In a modification, the knitted elastic thread in the central part is provided as an additional course. Specifications 463,728 and 530,686, [Group VIII], are referred to.
Patent GB-1036868-A (GB)
Title: Improvements in or relating to hay making implements
IPC: A01C3/08
Filed: 1963-03-11
Abstract: 1,036,868. Haymaking machines. C. VAN DER LELY N.V. March 11, 1963 [March 23, 1962], No. 11591/66. Divided out of 1,036,861. Heading A1F. The subject-matter of this Specification is the same as that of Specification 1,036,862 but the claims relate to a guidemember for the discharged crop.
Patent GB-1186022-A (GB)
Title: Nuclear Reactors
Inventor: WRAY DUDLEY
IPC: G21C9/02
Filed: 1967-03-13
Abstract: 1,186,022. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 16 Feb., 1968 [13 March, 1967], No. 11680/67. Heading G6C. A reactor with a positive void coefficient, for generating steam from light water coolant by heat exchange with nuclear fuel contained in coolant tubes, has means sensitive to a reactivity responsive control signal for injecting additional water into the coolant, the additional water being at a temperature less than the saturation temperature of the coolant and injected into the coolant such that steam in the coolant tubes is condensed to reduce voidage and, consequently, reduce reactivity. As shown, the reactor comprises a calandria tank 1 containing D 2 O moderator and coolant tubes 2 housing nuclear fuel 3. The coolant is H 2 O and is circulated by a pump 4 by way of a manifold 5 and pipelines 6 to the lower end of each coolant tube. The fuel comprises sheathed stacks of natural uranium oxide pellets arranged in clusters. Because the coolant is light water and the fuel is natural, the void coefficient is positive. The means for injecting additional water into the coolant comprises a pressure vessel 12 containing water 13 and connected to a source (not shown) of inert gas under pressure by a pipeline 14. A pipeline 15 dips into the water 13 and connects via a control valve 16 with the pipelines 6 at points immediately preceding coolant entry into the coolant tubes 2. The valve 16 is responsive to an increase above a pre-selected value of neutron flux intensity in the reactor core. Cold water is injected into the coolant stream at a rate responsive to the core reactivity in such a way that the reactivity is stabilized at a pre-selected value. Alternatively, in order to effect a rapid shut-down in an emergency, the valve is arranged to be opened fully by an excess of reactivity and held open to maintain the reactor in a sub-critical condition. In a modified construction, the cold water is fed by a pipeline 15a to a central sparge pipe of each fuel cluster. In the eventuality of a breach of the coolant circuit, a second pressure vessel 17 is provided, this being pressurized by an inert gas and containing liquid poison (e.g. boric acid). A dip pipe connects the calandria tank 1 with the pressure vessel 17 via a control valve 18 which is sensitive to loss of pressure in the coolant circuit.
Patent GB-499174-A (GB)
Title: Improvements in or relating to inter-dependent admission valves for multi-stage steam engines
IPC: F01B25/10
Filed: 1938-04-19
Abstract: 499,174. Combinations of interdependent valves. SALGE, W., (trading as SALGE & CO. TECHNISCHE GES., W.). April 19, 1938, No. 11797. Convention date, April 19, 1937. [Class 135] A multiple-way valve device particularly adapted for controlling the steam supplies to multi-stage steam engines with heat-exchangers comprises two valves actuated by a common multi-armed lever arranged so that the valve which is opened last is closed first. In the form shown the valves comprise lift valve closures a, b extended to form balancing pistons and pilot valves d having lost-motion connections with the main valves. The valve seats have upstanding flanges i adapted to co-operate with the balancing extensions. The desired sequence of opening and closing is obtained by making the lost-motion connection in one valve of less amplitude than in the other and by varying the height of the upstanding flanges. In a modification a spring lost motion is inserted in the actuating train of one valve to ensure both valves closing tightly. Specification 346,399, [Group XXVI], is referred to.
Patent GB-245056-A (GB)
Title: Improved manufacture of joists, beams, girders, shuttering and like building materials
IPC: E04C3/29
Filed: 1925-05-06
Abstract: 245,056. Erdmann, K., (Assignee of Austro-American Magnesite Co., Osterreichisch- Amerikanische Magnesitges., Ges.). Dec. 27, 1924, [Convention date]. Void [Published under Sect. 91 of the Acts]. Paper, wood, and fibrous pipes and tubes.- Tubular girders are constructed from a fibrous material, such as wood wool or peat wool, in rope form, which is helically wound in one or more layers about a mandrel, and drawn off the latter after hardening with Sorel cement. The rope may be impregnated with the hardening medium before winding. The rope 1 may be provided with an iron wire core 2. When the tube is wound with more than one layer, wires 5, 6 may be provided between the layers, the wires 6 being placed parallel to the axis and the wires 5 being wound helically. A pair of tubular elements may be joined together for use as roof beams. A beam, Fig. 5, may be provided with longitudinal channels, concrete being poured in between tubes 11 and the outer element. The elements may be plastered or rendered with lime, stone, wood, asbestos cement, or asphalt before erection.
Patent GB-873685-A (GB)
Title: Improvements in or relating to food mixing machines
Inventor: WOOD KENNETH MAYNARD
IPC: A47J44/02
Filed: 1959-04-08
Abstract: 873,685. Culinary - mixers. KENWOOD MANUFACTURING (WOKING) Ltd. May 17, 1960 [April 8, 1959; Feb. 25, 1960], Nos. 11883/59 and 6694/60. Class 86 A culinary mixer has an electric motor 34 mounted below the top 21 of a table or cabinet, an opening in which is covered by a plate 22 having inverted frusto-conical recesses 26, 25 in which respectively can be detachably received a mixing bowl 32 and a pillar 27 hinged at 33 and having an arm in two parts 28, 29 carrying a beater head 31. The motor 34 has a high speed direct drive coupling 36 and also drives through a 'belt 44 and reduction gear-box 46 a low speed drive coupling 48 which operates the beater through shafts and gearing in the pillar and arm, see Fig. 6 (not shown). The speed of the motor may be controlled through a member 42. The plate 22 is retained in the opening in the table top by 'clamping arms as at 111 pivoting round pins moved into and out of the clamping position by captive screws, see Figs. 4 and 5 (not shown). The bowl 32 may be secured in the recess 26 by a bayonet catch, and the pillar 27 secured in the recess 25 by plungers moved radially of the pillar by spiral cams and having sloping upper surfaces engaging in recesses as at 51. The plungers are actuated by an arm 61 projecting through a slot 62 in the pillar and have projectives which engage with ramps in the bottom of the recess 25 to disengage the pillar when the plungers are withdrawn (see Figs. 6, 10 and 11, not shown). The arm portion 29 carrying the beater head is connected to the portion 28 by a spigot and by spring- loaded studs engaging in key-hole shaped slots, and may be detached after release of a catch 91 (see also Figs. 6, 7, 8 and 9, not shown) to enable a mincer, grater or other auxilliary device to be attached instead. Such auxiliary devices which have a spigot but not the spring-loaded studs may be locked into position by means of a latch 105 having a cam edge and associated with a blade spring and locating stud, (see Fig. 12 not shown). The mixing bowl 32 may be replaced by a liquidizer driven from the direct drive coupling 36 (see Fig. 6, not shown). The recesses 25, 26 in the plate 22 may be covered by a plate 24 when the mixer is dismounted. Specification 873,684 is referred to.
Patent GB-541431-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1940-07-19
Abstract: 541,431. Slicing machines. B E R K E L & PARNALLS SLICING MACHINE MANUFACTURING CO., Ltd., and THOMAS, H. (Maatschappij van Berkels Patent N.V.). July 19, 1940, No. 11896. [Class 28 (ii)] In a machine having a substance carrier 14 of variable stroke, a struck element 16 on the machine base, and a striker element on the carrier, the elements interacting to limit the return ("pull") stroke of the carrier, the length of the stroke of the carrier is adjusted by adjusting one of the elements lengthwise of the stroke. Thus, in Figs. 1 and 3 the striker element is adjustable, comprising an outer sleeve 18A forming part of the carrier and an inner sleeve 18B which is the striker element. the sleeves surrounding and sliding on the carrier guide bar 15. The inner sleeve is locked in the desired position by the engagement of a spring (20A) pressed latch 20, pivotally mounted on the inner sleeve, with a toothed rack 19 on the outer sleeve. An operative connection is provided between the inner sleeve and the conveyer of a slice-stacking mechanism. In Fig. 5 a spring-plunger 28 in the outer sleeve 18A engages one of a series of holes or recesses 27 in the inner sleeve 18B, the invention being applied to a machine in which the substance-pusher is carried by a block 21 sliding on guides 22, 23 and pulled to the cutting plane by a spring 24; this embodiment may also be applied to a machine having a mechanical feed actuated by the carrier at the commencement of each slicing stroke. In Fig. 8 the struck element is adjustable, and assists in step-by-step feed across the carrier. The struck element comprises a lever 34 fulcrummed on a pin 35 supported by the machine base 10; the lever may be slid along the pin and locked thereto by the engagement of a spring plunger (or screwed pin) 37 with annular recesses 36 in the pin 35. As the carrier reaches the end of its return stroke a roller 31, co-acting with a cam portion 32 on the lever 34, raises a member 38 to raise an arm 40 which (via a one-way clutch not shown) imparts a rotational feed movement to a screw 30. When the machine (such as that of Specification 412,416) has a spring feed which is freed by locking mechanism at the end of each return stroke, the roller 39 is located on a lever which, when displaced by the cam 38, frees the spring feed. The lever 34 may be non- adjustable on the pin 10, and then co-operates with an extensible carrier bearing such as that of Figs. 1 and 3 or of Fig. 5. In another modification, the fixed stop 16 is replaced by an adjustable stop slidable along the carrier guide 15 and locked by a rack or gate. The stop 16 may have a resilient buffer. Specification 532,230 is referred to.
Patent GB-1093254-A (GB)
Title: Improvements in or relating to the manufacture of mouthpiece cigarettes
Inventor: ROWLANDS TOM
IPC: A24C5/47
Filed: 1964-03-20
Abstract: 1,093,254. Cigarette making machines. MOLINS ORGANISATION Ltd. and T. ROWLANDS. March 19, 1965 [March 20, 1964], No. 11900/64. Heading A2C. To turn end for end the end one of a line of filter plugs being conveyed axially in batches by pushers 2 of an endless chain conveyer 3, a rotary disc 7 having two projections 8 and 9 is provided. The projection 8 engages the leading edge of the plug S1 so as to tip it until it is standing on its end (Fig. 2, not shown) and the projection 9 then engages the trailing end of the plug to complete the turning operation (Fig. 3, not shown).
Patent GB-294714-A (GB)
Title: Improvements in hydraulic clutches
IPC: F16D31/04
Filed: 1927-05-05
Abstract: 294,714. Middler, A. J. May 5, 1927. Clutches.-The driving shaft Z, Figs. 1 and 3, is geared to a toothed wheel D<1> meshing with a similar wheel D disposed in a chamber A<1> of a casing carried by the driven shaft Y, valves F, F<1> controlling the inlet and outlet of the chamber. The valve F has a portion F<3> adapted to connect passages A<7>, A<8> to allow passage of air, and air openings G are also provided.
Patent GB-1065787-A (GB)
Title: Packaging
Inventor: EGGEN REX MUELLER
IPC: B65D65/42
Filed: 1965-03-23
Abstract: 1,065,787. Laminates. NATIONAL DAIRY PRODUCTS CORPORATION. March 23. 1965, No. 12181/65. Heading B5N. [Also in Division B8] A laminate film especially for wrapping cream cheese comprises an aluminium or other metallic foil coated on the outside with a synthetic vinyl film or lacquer to receive print, the inner surface being bonded by thermoplastic material such as polythene to a layer of regenerated cellulose.
Patent GB-1193816-A (GB)
Title: Improvements relating to Halogen Incandescent Lamps
IPC: H01K1/32
Filed: 1969-03-10
Abstract: 1,193,816. Coated incandescent lamp. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 10 MaTch, 1969 [13 March, 1968], No. 12386/69. Heading B2K. [Also in Divisions C4 and H1] A method of coating a selected part of the outer surface of a quartz envelope of a halogen incandescent lamp comprises the steps of masking those parts not to be covered with an adhesive tape, applying, as by sipraying, overall, a layer of black ethyl silicate paint wherein the black pigment is silicon, removing the solvent in the paint, removing the adhesive tape, and heat treating at a temperature of between 250‹C. and 500‹C. in a hot air furnace or by operating the lamp, the ethyl silicate being convented to silicon dioxide.
Patent GB-1564987-A (GB)
Title: Stable immunological reagents
IPC: G01N33/543
Filed: 1977-03-24
Abstract: A process in which products which are dispersible in water are obtained in the form of a freeze-dried powder which contains latex particles with, bound thereto, serologically determining material is described. The process comprises mixing an aqueous solution containing such latex particles with a sufficient amount of an aqueous solution of a dispersant and in this way preparing a latex suspension which contains 5 g/l to 30 g/l of dispersant based on the volume of the latex suspension, which is then lyophilised. Suitable as dispersant is, for example, a water-soluble saccharide, especially lactose, dextrose and sucrose. The products can be used as reagents for the determination of antigens or antibodies in diagnostic methods.