baber/WOPTO huggingface dataset:
Patent GB-1393177-A (GB)
Title: Position detector
IPC: B66B1/50
Filed: 1972-04-17
Abstract: 1393177 Photo-electric position detector WESTINGHOUSE ELECTRIC CORP 17 April 1972 [19 May 1971] 17617/72 Heading G1A Apparatus for determining when two objects are in a desired relative position one with respect to another e.g. for use in controlling the operations of a lift before it reaches a particular floor, comprises a pulsed radiation transmitter and a radiation detector which is located so as to detect radiation from the transmitter when the desired position is attained and thereby operate a relay via a transformer coupling circuit. In the lift control application, the transmitter and detector 2, 4 are arranged in angled relationship on support 21 attached to the lift car. At each floor is provided a vane 22 carrying a reflective strip 23 of e.g. chromium plated plastics or metal, polished copper, or gold or silver polyester tape. A shield 30 stops stray light. The transmitter and receiver circuits are detailed in Fig. 4. The transmitter is a light-emitting diode LED emitting within the range 2-10,000 and in the embodiment described is infrared emissive and can be pulsed in the Megahertz range. In the embodiment, a KH z  square wave generator is provided based on a programmable uni-junction transistor PU coupled to a J-K flip-flop F-F. Zener diode ZD1 provides the 30v supply. The flip-flop output 33 is shaped by Zd2 and resistor R5, and amplified by emitter follower transistors Q1, Q2. The receiver comprises a photo-transistor PT associated with an operational amplifier, whose input A is biased to be slightly negative with respect to input B. Incidence of infrared radiation however causes input A to go positive with respect to B producing an output from DA. When this exceeds ZD5 potential, which occurs when transmitter pulses are being received, Q3 is turned on. The output from Q3 is passed by transmission line 9 to the control device, a line driver Q4 being provided, with Zener diode ZD6 to cut out spurious pulses picked up in the line. When Q3 is on, Q4 is turned off, capacitor C2 discharges, Q5 is turned off and Q6 on. Pulses are then transmitted by transformer Tl to the relay circuit. Transformer T is constructed so as to only transmit signals in the kilohertz range. In an alternative arrangement, the transmitter may be on one object and the receiver on the other. Instead of a device which reflects radiation back to the receiver, an arrangement in which a member blocks radiation reaching the receiver may be used.
Patent GB-1273079-A (GB)
Title: Epoxy resin compositions
Inventor: MIYASHIRO JAMES J
IPC: H01B3/40
Filed: 1970-04-14
Abstract: 1,273,079. Curing epoxy resins. MORTON INTERNATIONAL Inc. 14 April, 1970 [24 April, 1969],No. 17672. Heading C3B. A moulding composition comprises (I) an epoxy resin, (II) a cyclic polycarboxylio acid anhydride and (III) a complex of an acetylacetone with Zn, Fe, Al, Sn or Zr. III may have the formula in which M is the polyvalent metal, X is from 1 to the valence of M, R 1  and R 2  are independently C 1 _ 20  alkyl, aryl, heterooyclic or halogenated hydrocarbon radicals, R 3  is H or has the same definition as R 1  and R 2 . Preferred III are zinc, iron and aluminium acetylacetonate. Examples of II are phthalic, tetrachlorophthalic, trimellitic, chlorendic, hexahydrophthalic or endomethylenetetrahydrophthalic anhydrides or the dianhydrides of benzophenonetetracarboxylic acid, pyromellitic acid or 1,2,3,4-cyclopentanetetracarboxylic acid. From 0.3 to 1 equivalents of II may be used per epoxide equivalent of I and from 0.1-10 parts of III per 100 parts by wt. of I. Conventional fillers and pigments may also be present.
Patent GB-182474-A (GB)
Title: Improved method and apparatus for the combustion of pulverised solid fuels
IPC: F23K3/00
Filed: 1922-06-27
Abstract: 182,474. Combustione Economica Ú Impianti Ellettrici Soc. Anon., (Assignees of Caccioppoli, L.). July 1, 1921, [Convention date]. Fuel, feeding.-Pulverized solid fuel is first mixed with a small proportion of air-insufficient to produce a combustible mixture-conveyed thus to any desired point of combustion where it receives the full supply of air and is then delivered to the burner. The first mixture is effected at the entrance to a. conduit 9 to which air is supplied by an adjustable inlet 10, fuel being supplied either from a separator hopper, as shown, so as to be uniformly free of air, or from an ordinary hopper, or direct from a crusher. The final mixing-device consists of a conical chamber 12 receiving the initial mixture at the centre of its base and delivering at its small end to the intake of a fan 20 which delivers to the burner. A hit- and-miss regulator 15 on the inlet side of the chamber adjusts the final supply of air. To keep the mixture agitated, a propeller wheel may be mounted in the chamber 12 on the fan shaft. 'The separator comprises a fuel inlet 2, air outlet 6, air return pipe 7, and baffles 8.
Patent GB-800586-A (GB)
Title: Improvements in or relating to the condensing of zinc in liquid form from zinc vapour
Inventor: DERHAM LESLIE JACK
IPC: C22B19/18
Filed: 1956-06-08
Abstract: 800,586. Condensing zinc. NATIONAL SMELTING CO., Ltd. March 18, 1957 [June 8, 1956], No. 17806/56. Class 82(1) A shock-chilling condenser, using liquid lead as a coolant, for condensing liquid zinc from zinc vapour has a steel casing 1, a refractory lining 2 containing liquid lead up to level 3 and a conveyer 7 for the removal of dross from the interior of the condenser. Dross, containg 63 per cent zinc and 5 per cent lead is removed from the molten lead by conveyer 7 which has a cut-away portion 11 and a screw conveyer with alternate 120 degrees portions 8 and gaps 9 to allow molten lead to drain from the dross. The dross is conveyed to pipe 14, falls into receiver 18 and is removed at intervals as its level rises above 17. Specifications 572,961 and 735,043 are referred to.
Patent GB-134332-A (GB)
Title: Improvements in or relating to Drying or Heating Apparatus of Continuous Type.
IPC: F27B9/10
Filed: 1918-11-01
Abstract: 134,332. Dressler Tunnel Ovens, Ltd., and Williamson, J. Nov. 1, 1918. Tunnel kilns.-A continuous kiln for heating or drying goods in an atmosphere free from combustion products comprises a longitudinal passage containing an air heater, and a second passage above the first and communicating directly with its upper part and through a return passage or passages in the walls with its lower part, and supporting a carrier by which the goods are conveyed continuously through the apparatus, the air circulating continuously between the two passages. Preliminary drying is effected by the passage of moderately heated air through the goods in one part of the apparatus, this air being discharged from the upper part; air entering the apparatus is used to cool the finished goods. The apparatus shown in Fig. 1 comprises a combustion chamber b surrounded by a casing c perforated at the top and bottom; the passage along which the combustion chamber extends opens at its upper part into a longitudinal drying or heating chamber f through which trucks comprising trunnions carrying trays k convey the goods, the trucks passing back to the feeding end of the kiln through a lower passage n connected to the heating chamber by a descending passage in which the goods are discharged and a corresponding ascending passage. The hot air passes through the top of the heating chamber and circulates through flues t, t<1> to the heater b. The separate roof s of the chamber f may be dispensed with. The preliminary dryer, Fig. 2, comprises air heating and drying chambers a, f forming continuations of those shown in Fig. 1, the combustion products from the heater b, Fig. 1, passing through the air heating tubes y, and the moist air escaping by the exit z. A cooling section at the exit end receives air from the outside, this air, after passing through the cooling portion, being withdrawn by a fan, and forced partly into the heater b, Fig. 1, to support combustion and partly into contact with this heater and with the goods in the passage f.
Patent GB-627365-A (GB)
Title: Improvements in and relating to screw and nut mechanisms
IPC: F16H25/22
Filed: 1947-07-07
Abstract: 627,365. Screw-and-nut mechanism. ENGLISH ELECTRIC CO., Ltd., WOODFORD, C. G. A., SMITH, R. V, and WILKINSON, H. July 7, 1947, No. 17923. [Class 80 (iii)] In screw-and-nut gearing incorporating balls 2, return of the balls is made through a passage 4<1>, 4<11>, comprising leg portions 4a tangential to the screw thread and having portions 4c for scooping up the balls, and a bridge portion 4b. The whole passage has the form of an isoscles trapezium with the longest side missing, the portions 4a being skew. The passage member is composed of two parts 4<1>, 4<11> butt-jointed by a clip 5, the join being either straight or oblique. The screw thread is formed with cut away portions 1b for accommodating the scoops 4c.
Patent GB-432661-A (GB)
Title: Improvements in and relating to the manufacture of collars for personal wear
IPC: A41B3/00
Filed: 1935-03-28
Abstract: 432,661. Collars for personal wear. WEBBER, H. J., Devonia, Priory Avenue, Taunton, Somerset. March 28, 1935, No. 17987/34. [Class 141] In a semi-stiff having the collar top and band woven in one piece, the collar top is made entirely of bleached thread, while the collar band contains unbleached or less bleached thread. This construction produces a differential shrinkage of the collar band and collar top during a subsequent operation such as washing, since the unbleached thread shrinks more than the bleached thread, so that a curvilinear set of the collar is obtained. Fig. 1 shows a length of woven cloth comprising alternating bands 1, 2 extending in the direction of the warp, the bands 1 comprising bleached warp threads, and the bands 2 unbleached or less bleached warp threads. The collar is cut out so that the collar top is formed from band 1 and the collar band from band 2, separation of the collars being facilitated by the omission of several warp threads as at 10. The collars may be cut out first and subsequently washed or treated to obtain the differential shrinkage, or the portions of material which go to form each collar may first be separated and washed, when the cloth assumes the shape shown in Fig. 7, and the collar blanks subsequently cut out.
Patent GB-1243758-A (GB)
Title: Multiple v-belt drive for a crowd mechanism of a power shovel
IPC: E02F3/42
Filed: 1970-04-15
Abstract: 1,243,758. Face shovel excavators. HARNISCHFEGER CORP. 15 April, 1970 [23 April, 1969], No. 18062/70. Heading E1F. [Also in Division F2] In a face shovel excavator gearing driving the shipper shaft of the excavator is itself driven from a motor 30 mounted on the boom 3 of the excavator through a multiple, preferably unitised V belt drive. The motor 30 is secured on a rockable platform 40 mounted at 48 on the boom 3 and lockable thereto when the correct tension of the belt has been obtained by appropriate positioning of the platform relative to the boom. This complete drive is encased so that filtered air can be ducted around the motor and the belt for the cooling thereof. The tension of the belt can be determined by a spring-loaded, calibrated, telescopic, roller-carrying probe 60 that is pivotally mounted on the boom so that it can be swung up against the underside of the V belt drive.
Patent GB-790139-A (GB)
Title: Telescopic shock absorbers
IPC: F16F9/36
Filed: 1955-06-22
Abstract: 790,139. Hydraulic shock absorbers. KONING, A. A. DE, and KONING, K. K. K. DE. June 22, 1955 [June 30, 1954], No. 18117/55. Class 108(3) A telescopic hydraulic shock absorber comprises a piston rod 7 and guide 3, and unobstructed air vent passages 15 circumferentially spaced in the guide and opening into a space in the end part of the cylinder 1 where air accumulates. In the construction shown, the passages 15 are formed in an extension 3a of polygonal cross-section. In operation, when pressure develops in the cylinder 1, the oil stream flowing between the rod 7 and the guide 3, sets up a pressure differential in the passages 15 which carries air from the periphery of the cylinder at the outer ends of the passages 15. In a modified construction (Figs. 1 and 2, not shown), the extension 3a is of circular cross-section. The passages 15 may be inclined to the piston rod axis instead of being radial as shown.
Patent GB-681362-A (GB)
Title: Improvements in multi-cylinder reciprocating air and like pumps
IPC: F04B39/10
Filed: 1949-07-08
Abstract: 681,362. Cylinder heads. BOYCE, R. D., and ROMAC INDUSTRIES, Ltd. July 7, 1950 [July 8, 1949], No. 18147/49. Class 122 (i) [Also in Group XXVIII] In a reciprocating pump of the kind in which cylinders are arranged in a ring, with their axes parallel to one another on one and the same side of a rotary element of the swash plate type which drives the pistons in all the said cylinders, the latter are divided into two groups furnished respectively with two separate and distinct inlet manifolds enabling one group to draw only from one source of fluid outside the pump while the second group draws in parallel and simultaneously from a second external source. Four cylinders 10 are arranged around a central wall 1 which is recessed to accommodate a support 3 for the swash plate and threaded to receive a screw 4 and nut 5, which secure a ported plate 6 to the cylinder block, the plate having an outlet port 11 and an inlet port 9 for each cylinder. A head 14 is also secured to the block and has an annular trough 15 forming a discharge manifold and accommodating discharge valves, each of which comprises a leaf 20, Fig. 3, slidable on posts 17, secured in the bottom of the trough 15, and pressed on to the ported plate by springs 16 surrounding the posts and acting through a curved and ported saddle 19. Inlet valves each comprise a resilient steel leaf 12 located radially, the inner end being clamped between the plate 6 and the wall 1. A plate 22 is secured to the head 14 and a box-shaped member 28 is secured to the plate 22 and forms therewith an inlet manifold for two diametrically opposite cylinders, the inlets 9 of which are connected to the manifold by tubes 26 through which air, filtered by a filter 30, is drawn. The other two cylinders draw from the space 21 formed inside the head 14 and provided with a connection which may provide a vacuum service. The apparatus may be operated as a simple air pump by removing the parts 22, 26, 28.
Patent GB-1392912-A (GB)
Title: Device suitable for use in radioimmunoassay and method of determining the content of a specific hormone in a serum sample
IPC: G01N30/02
Filed: 1973-04-16
Abstract: 1392912 Device for radioimmunoassay PHILIPS' GLOEILAMPENFABRIEKEN N V 16 April 1973 [19 April 1972] 18190/73 Heading G1B A device for use in radioimmunoassay comprises a reaction vessel 1 containing a completely compressible elastic sponge 10 of synthetic material, the outer and inner surfaces of the sponge being coated with a layer of antibodies or of hormonebinding proteins. In use for the determination of a specific hormone in serum, the serum sample and a known amount of a radio-actively labelled hormone are brought into contact with sponge 10 containing hormone-binding protein, in successive steps or in one step, the liquid is removed from the sponge by compression of the sponge with plunger device 9, 8, 7, and the amount of radioactivity on the sponge or in the liquid is measured and compared with the amount originally added. Examples relate to determining the proportion of insulin in serum samples using a device comprising a polyurethane sponge 10 coated with antibodies to insulin. Other sponge materials mentioned are polyethylene, polypropylene and polystyrene. There is a reference to determination of vitamin B12.
Patent GB-124396-A (GB)
Title: Improvements in Valve Mechanism for Double-acting Internal Combustion Engines.
IPC: F01L5/04
Filed: 1918-11-07
Abstract: 124,396. North British Diesel Engine Works, Ltd., and Maclagan, J. C. M. Nov. 7, 1918. Valves; valve-gear. - In a two-stroke-cycle double-acting engine, exhaust ports A<3> are controlled by a piston valve A, and scavenging inlet ports B<3> by a similar valve D. The valves are arranged co-axially on opposite sides of the cylinder and are actuated by rams M and rocking- levers J. Exhaust and supply passages A<4>, B<4> communicate with the cylinder ports through annular ports A<2>, B<2> respectively.
Patent GB-595829-A (GB)
Title: Adjuvant preparations for use in foods or in animal feeding stuffs other than special bakers' flours
IPC: A23L7/10
Filed: 1943-11-03
Abstract: A preparation for addition to animal feeding stuffs is made by spray-drying a mixture of cereal or leguminous flour, starch, or other edible farinaceous or cereal product with an aqueous solution or suspension of one or more of the nutritionally desirable substances: essential amino acids, salts of iron, preferably ferrous salts, of copper, cobalt and manganese; iodides not already included in these salts, e.g. potassium iodide, containing also, if desired, vitamins, e.g. vitamins A and D as occurring in fish liver oil or synthetically produced, carotene, vitamin B1 (aneurin); vitamin B2 (riboflavin or lactoflavin); vitamin C (ascorbic acid), added if desired in a fruit juice concentrate; vitamin E, synthetically produced or as in wheat germ oil; vitamin K1 or K2; nicotinic acid (niacin) or its amide.  The mixture may contain a substance exerting an antioxidant effect on the flour or the like, e.g. soya bean flour, oat flour, quinol.  Specifications 522,418, 578,624, 578,625 and 578,626, [all in Group VI], are referred to.ALSO:A preparation for addition to foods other than baker's flour is made by spray drying, preferably to a powder of not more than 12 per cent moisture, a mixture of cereal or leguminous flour, starch, or other edible farimaceous or cereal product with an aqueous solution or suspension of one or more of the nutritionally desirable substances: essential amino acids; salts of iron, preferably ferrous salts, of copper, cobalt and manganese; iodides not already included in these salts, e.g. potassium iodide, containing also, if desired, vitamins, e.g. vitamins A and D as occurring in fish liver oils or synthetically produced; carotene; vitamin B1 (aneurin); vitamin B2 (riboflavin or lactoflavin); vitamin C (ascorbic acid), added if desired in a fruit juice concentrate; vitamin E, synthetically produced or as in wheat germ oil); vitamin K1 or K2; nicotinic acid (niacin) or its amide. The mixture may contain a substance exerting an antioxidant effect on the flour or the like, e.g. soya bean flour, oat flour, quinol. Specifications 522,418, 578,624, 578,625 and 578,626 are referred to.
Patent GB-1492304-A (GB)
Title: Process for the preparation of anhydrous alkali metal metasilicates
IPC: C01B33/32
Filed: 1975-05-01
Abstract: 1492304 Anhydrous alkali metal metasilicates ZINKWIT NEDERLAND BV 1 May 1975 [6 May 1974] 18298/75 Heading ClA Anhydrous alkali metal metasilicates are prepared from sand and alkali metal carbonate by granulating the mixture and then thermally treating the granulated mix in a furnace below the melting point of the alkali metal metasilicate. In particular, ground silver sand of particle size not greater than 50 Ám and anhydrous Na 2 CO 3  may be mixed in suitable quantities to yield a molar ratio of SiO 2 /Na 2 O in the product from 0À8 to 1À1; (b) compacting the mix between rollers at a pressure of 3-11 tonnes/cm. and (c) granulating the resulting plates or briquettes, the granules 0À3 to 3 mm. in size being separated and thermally treated to yield the sodium metasilicate. The thermal treatment may be undertaken in a fluidized bed at 650‹ to 1050‹ C.
Patent GB-477538-A (GB)
Title: Means and methods for increasing the adhesion between contacting surfaces of machine-and constructional-parts that are permanently non-displaceable relative to one another
IPC: B23P11/02
Filed: 1936-07-01
Abstract: 477,538. Jointing. JACOBOVICS, J. July 1, 1936, No. 18308. Convention date, July 1,1935. [Class 83 (iv)] A joint between non-displaceable parts, such as a collar on a shaft, a tube in a tube plate, or riveted or screwed joints &c., is made by applying metal granules of wedge-shaped or splintery form between the contacting surfaces. The granules may comprise iron filings or steel grit mixed with a binder of fatty oils and viscous fats together with a filler of chalk, graphite, &c. and kieselguhr, asbestos, &c.
Patent GB-838416-A (GB)
Title: Improvements in or relating to turbine impellers
IPC: F01D5/04
Filed: 1956-06-14
Abstract: 838,416. Radial inward flow turbines. BUCHI, A. J. June 14, 1956 [June 18, 1955], No. 18453/56. Class 110 (3). In a radial inward flow turbine of the Francis type, the impeller blades are shaped so that the outlet edges of the blades, when seen in axial section, are inclined in the direction of flow from the end adjacent the impeller hub to that remote therefrom and so that pressure changes over the entire cross-sectional area of flow through the impeller are equal whereby the working fluid is discharged from all points on the outlet edge of each blade with equal absolute velocities in directions which lie in axial planes. The impeller is shown in end view in Fig. 1 and in axial section in Fig. 2, the inclination alpha of the outlet edge V of a blade with respect to the axis of rotation Z being shown in Fig. 2. Sections of the blades by planes II, KK ... SS lying normal to the axis of rotation Z are shown in Fig. 4, the sections all being disposed radially with respect to the axis Z. The radial lines IZ, KZ ... SZ in Fig. 4 are shown uniformly spaced apart, but in true section, the lines SZ, RZ . . . adjacent the disc portion of the impeller appear closer together as the blades are more nearly axial adjacent the impeller disc portion. The velocity diagrams for two points on the outlet edge of a blade are shown in Figs. 6 and 7, the absolute velocities of discharge being shown at C2. The actual sections of the blade profiles in the direction of the fluid flow are indicated at 6 and the relative velocities W2 and W2<1> are drawn parallel thereto. The outlet edges V are rectilinear and the inclination alpha may be between 65 and 85 degrees. The ratio of the diameters de at the impeller inlet and di at the impeller outlet may be between 2.5: 1 and 3.5:1. The centre lines of the blade ducts are of substantially circular form from inlet to outlet as seen in sections taken on cylindrical surfaces centred on the axis of rotation of the impeller and the ratio of the mean radius of curvature to the mean width of the blade duets in the region of the impeller inlet is at least 1.5:1.
Patent GB-498302-A (GB)
Title: Improvements in and relating to synthetic rubber-like materials
IPC: C08K5/37
Filed: 1937-07-02
Abstract: Aromatic mercaptans of the benzene or naphthalene series are used as plasticizers of synthetic rubber-like materials in which butadiene or a polymer thereof is the main ingredient, such as p  those described in Specifications 360,821 and 360,822.  Examples are given showing the effect of the addition of 2 parts to 100 parts of synthetic rubber, of thio-b -naphthol, and of 1-mercapto-2-naphthol.ALSO:Aromatic mercaptans of the benzene or naphthalene series are used as plasticizers of synthetic rubber-like materials in which butadiene or a polymer thereof is the main ingredient, such as those described in Specifications 360,821 and 360,822.  Examples are given showing the effect of the addition of 2 parts to 100 parts of synthetic rubber, of thio-b -naphthol, and of 1 mercapto 2 naphthol.