baber/WOPTO huggingface dataset:
Patent GB-789991-A (GB)
Title: Improvements in operating mechanism for sliding bolts for doors and gates
IPC: E05C9/02
Filed: 1955-02-24
Abstract: 789,991. Multiple fastenings. AYERS, F. P. Feb. 29, 1956 [Feb. 24. 1955; April 7, 1955], Nos 5555/55 and 10278/55. Class 44 A sliding bolt mechanism for doors comprises a casing 2 in which two perpendicular sliding bolts 3, 4 are simultaneously moved to and fro by a rotatable handoperated element 10 located within the angle between the bolts, and which is urged into the bolt-withdrawn position by a spring 18; a releasable detent A which engages the element 10 secures it against rotation under the action of the spring 18, and thus retains the bolts 3, 4 in the shot position. In the preferred embodiment the hand-operated element 10, which is discshaped, has a pair of projecting noses 12, 13 which engage notches 14, 15 in the bolts 3, 4 respectively, and a clockwise rotation of the element 10. by means of a handle 9 attached to the shaft 11, causes the bolts to be shot and the spring 18 to be compressed. The detent, which is urged into its locking position by the spring 23, can be disengaged remotely by pulling the flexible cable 22, thereby permitting the element 10 to rotate under the action of the spring 18 thus withdrawing the bolts. The detent may be controlled by a barrel-lock, the blade 25 of which rotates a shaft 27 upon which plates 26, 29 are rotatably attached, and a finger 28 is rigidly attached. A pin 30, fixed to one side of the plate 29, engages a hole 31 in the plate 26, and a similar pin on the other side of the plate 29 is engaged by the finger 28. Operation of the barrel-lock causes the finger to hold the plate 29 either engaged or disengaged by the tooth 21, in the latter case further rotation of the lock causes the plate 26 also to be disengaged from the tooth 21.
Patent GB-163796-A (GB)
Title: Improvements in and relating to the construction of the field magnets of dynamo electric machines
IPC: H02K1/10
Filed: 1920-02-24
Abstract: 163,796. Schroeder, G. Feb. 24, 1920. Field magnets.-The poles, in particular commutating-poles, of the field magnets of dynamo - electric machines are built up of sections d separated by transverse layers g of air or material of equivalent reluctance, the construction being such that the whole or nearly the whole of the magnetic flux follows paths all of which have approximately the same reluctance. In the construction shown, each section d is built up of laminations riveted together, and the sections d are held together and are secured to the yoke j by non- magnetic bolts h. The exciting winding is held in position between clamping-plates m and plates l engaging with annular grooves k in the bolts h. Between the plates l and the yoke j are arranged a layer n of insulating-material and a series of steel plates o, of which some are removable to allow of adjusting the air gap between the inner end of the pole and the armature.
Patent GB-1218044-A (GB)
Title: New cycloaliphatic amines, process for their production and preparations containing them
IPC: C07C211/25
Filed: 1968-02-05
Abstract: 1,218,044. Amines. J. R. GEIGY A.G. 5 Feb., 1968 [6 Feb., 1967; 23 Jan., 1968], No. 5611/68. Heading C2C. Compounds of the general formula (R = alkyl or alkenyl group containing up to 6 carbon atoms) and their salts are prepared by degrading, according to the Hofmann, Curtuis or Lossen methods, a compound of the formula or a derivative thereof, optionally followed by salt formation. The preparation of 1- and 2 - methyl - 3 - cyclohexene - 1 - carboxylic acid hydrazide and 1- and 2 - methyl - 3 - cyclohexen - 1 - ylaminomethanesulphonic acid is described. The compounds of the invention are anorectics and analgesics, and may be administered in the form of phermaceutical preparations containing them together with a carrier.
Patent GB-212097-A (GB)
Title: An improved suction feed device for rotary duplicators, printing apparatus, and the like
IPC: B65H3/08
Filed: 1923-02-27
Abstract: 212,097. Adams, R. C. Feb. 27, 1923. Sheet-separators.-Sheets are separated from a pile 19 and fed to the rollers 21, 22 of a duplicating, printing, or like apparatus, by means of a suction nozzle 2 mounted on a bracket 8 carried by a bar 9 mounted on pivoted arms 10 carried by a slide 12 which is reciprocated vertically by cam mechanism. The separator 2 opens into an induction tube 1, and is formed with contact edges 3, the leading edge 4 being undercut so that a shallow orifice is presented giving access to the recessed underaurface 2 when the nozzle is in contact with the paper to be lifted. When a sheet is attracted to the.nozzle 2, the sheet is puckered into the undercut edge 4 and air passes through the puckered edge between the top sheet and the one below, thus preventing double feed. One or more of the other edges separating the nozzle may be undercut. As the slide 12 is raised, stops 15 act on shoulders 14 on the arms 10 causing them to move about the pivot 11, and carry the sheet into the bite of the rollers 21, 22.
Patent GB-1072226-A (GB)
Title: Vending machine, package and method
IPC: G07F11/42
Filed: 1965-02-09
Abstract: 1,072,226. Sales machines. S. O. SCHLAF. Feb. 9, 1965, No. 5660/65. Heading G4V. A coin-freed sales machine comprises a panel 19 on which is mounted a plurality of sales devices, each secured by a nut 34, so as to be readily replaceable. Each unit comprises a sprocket 29 engaged by a common drive chain 28 driven by an electric motor, the sprocket being connectable by a solenoid-operated clutch to a helical spindle 35 passing through apertures. in the tops of merchandize packages 21. The drive has a cam (not shown) engaged by a cam follower 61 operating switches. On insertion of a coin, a vend relay is energized and holds itself on, the drive motor is energized, and a set of selector switches are energized. The customer presses a selector button to operate one switch, which engages the clutch of the selected unit. The cam follower 61 of that unit then closes a switch to hold the motor energized, and deenergizes the vend relay. The motor is energized and the clutch engaged until the cam follower opens a limit switch, after delivery of one package by rotation of the spindle through one revolution or half a revolution, depending on the spindle construction. During a sales cycle, the coin slot is automatically blocked. A member 44, of elongated U-shape in plan, rests on the merchandise, and falls when the spindle is empty, to operate switches which prevent operation of the unit, and results in operation of another unit storing the same merchandise, if any. The delivery end of the spindle may comprise a thin rod journalled in the casing, the aperture in the top of the package 21 being so shaped that the package cannot fall off the spindle, but can fall off thethin rod, whereby the spindle is supported and packages cannot be shaken off its end. The spindle may be twisted flat stock, as shown, or a helical wire with a supporting rod running along its centre, the part of the package above the aperture being held between the wire and rod, Fig. 28 (not shown). In an alternative embodiment, each unit incorporates its own drive motor.
Patent GB-1381243-A (GB)
Title: Method for metallizing substrates
IPC: C23C18/31
Filed: 1973-02-06
Abstract: 1381243 Electroless plating KOLLMORGEN CORP 6 Feb 1973 [18 Feb 1972] 5714/73 Heading C7F An insulating resinous material is metallized by (1) preactivation by contact with an organic liquid comprising CCl 3 CH 3  and one or more of dimethyl formamide, dimethyl sulphoxide, and N-methyl-2- pyrrolidone and also 1-30 wt per cent water (2) activation by contact with an oxidizing agent (3) treatment with HCHO, a precursor thereof or an alkali metal bisulphite (4) rinsing in water, preferably at least 50‹C and (5) electroless plating. Step (2) may use Cr03 or a bichromate mixed with H 2 SO 4  or HBF 4 , or a KMnO 4  solution; a fluorinated surfactant may be present, and temperatures of 40-90‹C are used. Optional extra steps are 1(a) rinsing in water or an organic solvent such as 60-96% by vol ethyl acetate mixed with dimethyl sulphoxide, dimethyl formamide, or N-methyl-2- pyrrolidone and 4(a) seeding for electroless plating, e.g. using a Pd salt; the electroless metal of step (5) may be Cu and this may be electro-plated with further metal(s). Printed circuits may be made using standard negative photo-resist techniques, or a coating of hydrated stannous oxide may be applied to an unseeded substrate and exposed to U.V. to give a negative pattern of Sn<SP>IV</SP>, which is not capable of being seeded for electroless plating; the substrate may be baked before and/or after plating.
Patent GB-1224171-A (GB)
Title: Improvements in and relating to gunn-effect devices
Inventor: WILSON KENNETH
IPC: H01L47/00
Filed: 1967-02-07
Abstract: 1,224,171. Gunn effect devices. ASSOCIATED SEMICONDUCTOR MFRS. Ltd. 5 Feb., 1968 [7 Feb., 1967], No. 5718/67. Addition to 1,161,782. Heading HlK. A voltage tunable planar Gunn-effect device has ohmic cathode and anode contacts disposed on or adjacent one face of a laminar semiconductor body or layer, the relative disposition and shape of the electrodes being such that the field between them in the quiescent state is non- uniform. A preferred device comprises a 0 ohm. cm. GaAs layer 3Á thick epitaxially deposited on a 30Á semi-insulating GaAs plate with concentric circular and annular contacts disposed in etched cavities extending into the layer or through it to the substrate, the inner contact being 10Á in diameter and the internal diameter of the annular contact being 40Á. The contacts may consist of tin, or a gold-tin, silvergold-germanium, gold-indium-germanium or silver-indium-germanium alloy or of a goldgermanium alloy coated with nickel. In other embodiments the inner edge of one contact is jagged or arcuate while the other may be straight, arcuate or jagged. Indium phosphide and cadmium telluride may be used instead of gallium arsenide. Reference has been directed by the Comptroller to Specification, 1,170,984.
Patent GB-473868-A (GB)
Title: Bearing arrangement for retaining clips
IPC: G09F1/10
Filed: 1937-02-25
Abstract: 473,868. Clips. WIENAND, F. Feb. 25, 1937, No. 5733. Convention date, Sept. 3, 1936. [Class 44] A spring-actuated clip member 1 for holding neck-ties or other articles is pivotally mounted on a support by means of a projection 5 ending in cylindrical portion 6 engaged in a corresponding bearing recess in the support, which is shown as in two parts 2, 2<1> connected by screws, not shown. A flared aperture 4 leading to the recess allows the required swinging movement of member 1. Fig. 1 shows the use of a coiled wire spring. The upper edge of aperture 4 has a central recess 10, and member 6 is bifurcated, Fig. 9, to provide a gap registering with the recess 10 to accommodate the spring. The spring before insertion is held stressed by the engagement of limb 18, Fig. 10, with the bent portion 19 of limb 20 which may end in a turned-up portion 21 to prevent lateral separation of the limbs. After insertion, a portion of limb 18 is cut off to allow the limbs to open and bear respectively against the bottom of recess 10 and the rear face of member 1. Fig. 2 shows a compression spring having its ends engaged in recesses. A modification is described using a blade spring held in a cut in arm 1 and bearing at its free end against the support. As shown in Fig. 5, provision may be made for mounting a series of arms on a common support. A further modification is described in which the cylindrical ended projection is provided on the support and the bearing recess in the clip arm. In this case there may be one or two projections for each clipping arm, or the projection may be in the form of a rib extending along the support and common to a number of arms.
Patent GB-563039-A (GB)
Title: Improvements in or relating to the extraction of expulsion of water and other liquidfrom yeast suspensions
IPC: C12N1/02
Filed: 1942-03-02
Abstract: 563,039. Filtering yeast suspensions. SVENSKA JASTFABRIKS AKTIEBOLAGET, and HORNE. R. F. March 2, 1942, No. 5806/44. Divided out of 560,569 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 22, 1942. Drawings to Specification. [Class 46] A method of dewatering yeast suspension consists in feeding the suspension into a rotating filter chamber, to which gas or air is supplied separately under pressure, so that it adheres to the inner surface and the liquid is expelled by the gas or air pressure, scraping off the filtered yeast and discharging it from the chamber. The apparatus described for carrying out the method is identical with that described in Specification 560,569. Reference has been directed by the Comptroller to Specification 560,569.
Patent GB-430593-A (GB)
Title: Improvements relating to the weft inserting and beating-up mechanism of looms for weaving
IPC: D03D49/60
Filed: 1934-02-23
Abstract: 430,593. Looms. SHIMWELL, O., Gawsworth Old Hall, Gawsworth, Cheshire. Feb. 23, 1934, Nos. 5953, 17613, and 26558. [Classes 142 (i), 142 (ii), and 142 (iii)] Beat-up motions; lays; reeds; shuttleguards ; shuttle-races ; shuttle-boxes ; shuttles.- The reed a, Fig. 1, takes no part in the beating- up of the weft which is effected by a comb h that rises adjacent to the reed or a comb-like track c carried by the lay and moves the weft to the beat-up position. The comb h enters the warps, as shown in Fig. 4, when the upper warps have been lowered to the level of the lower ones. During the beat-up, certain warps are raised to form the sheet, and before its completion, the shuttle begins to be picked. The shuttle is guided by fingers g on the lay engaging a projection d<1>, Fig. 2, of hard-wood on the shuttle and by the track c engaging a strip d2 of hard wood on the shuttle, space being left beneath the shuttle for the passage of the comb h. In some cases, the track is omitted and the shuttle is guided by two sets of fingers on the lay engaging two projections on the shuttle. The lay and shuttle boxes are stationary or the reed may be given a small movement in the direction of the beat up to move any broken threads into position to be engaged by the beat-up comb. To prevent the warp threads from passing continually through the same spaces in the comb-like track c and in the comb h, the reed is reciprocated lengthwise relatively to the track, while the comb h is also given a weft-wise movement. The shuttleboxes have each a pivoted side normally held closed by a locking-rod connected to a treadle. In depressing the treadle, the shuttle-box side is unlocked, while a further rod connected to a lever arm on the pivot of the shuttle-box side and to the treadle causes the side to be moved outwardly to release the shuttle. Shedding-motions.-The swell is connected by clutch-release gearing to the shredding tappets so that, if a shuttle is not boxed properly, the shedding is stopped, Figs. 28 and 29 (not shown). Selvages, forming and protecting.-To prevent distortion of the selvages by the withdrawal of the beating-up comb h, Fig. 23, the carrier of the comb has a projection 31 adapted to engage an arm 32 carrying a needle 26 and raise it free from the warps at beat up, while when the comb is lowered, the needle enters the warp at the edge of the fabric. Warps, tensioning.-The upper warps are kept slacker than the lower ones by arranging a fixed warp-tension bar i, Fig. 25 (not shown), above the plane of the fabric.
Patent GB-230625-A (GB)
Title: Improvements in or relating to vehicle suspension springs
IPC: B60G11/04
Filed: 1924-03-08
Abstract: 230,625. Stott, J. H. March 8, 1924. Drawings to Specification. Laminar springs. - A spring suspension for a vehicle comprises two identical full or two-armed cantilever springs at each side of the vehicle, each spring being constructed so that when one end is associated with one axle it is suitable for the load deflection required for that axle and when the other end is associated with the other axle it is suitable for the load deflection required for that axle. The load on each axle is ascertained, the corresponding deflection decided upon and the total length of the spring fixed, from which data the lengths of the arms of the spring can be ascertained. Preferably, the springs are also constructed as described in Specification 188,428. The arms are usually unequal but may be equal in length. If the loading at the two sides of the vehicle is very unequal, the springs at one side correspondingly differ from those at the other side.
Patent GB-692343-A (GB)
Title: Improvements in or relating to food supplements and the preparation thereof
IPC: A23L33/15
Filed: 1949-03-04
Abstract: 692,343. Animal feed supplements. DUNMIRE, R. P. March 4, 1949 [March 5, 1948], No. 5974/49. Class 5(ii) In making preparations which contain readily oxidizable or decomposable food :supplements, e.g. vitamins, hormones, and are for mixing with divided grain or whole grain for animal feeds, a carrier material, e.g. a hydrogenated soya bean, cotton seed, coconut or fish oil, is melted and freed from gaseous and volatile impurities, and, while the carrier material is still molten but is at a temperature below the decomposition temperature of the food supplement, there is incorporated the food supplement in the absence of oxidizing substances such as air. Mineral supplements, e.g. calcium carbonate, calcium phosphate, manganese sulphate and potassium iodide, colouring and flavouring materials, and non-oxidizable vitamins may be added with the oxidizable or decomposable supplements. With the apparatus of Fig. 1, chips of a fat of m.pt. 130-150‹F are sucked from a hopper 30 into an evacuated, hot-water jacketed heater 3 and there melted, the molten fat being blanketed with nitrogen in the heater 3; the molten fat is transferred from the heater 3 for degasification and sterilization into a chamber 2 in which is a high vacuum, e.g. a pressure of 0.001 mm. of mercury or less, the molten fat being fed slowly into the chamber 2 through an opening in a valve 213 (see Fig. 5) on to a rotating plate 212 which projects the fat in drops against the wall of the chamber, wherefrom the fat falls on to a succession of rotors 280; the fat collects in the bottom of the chamber 2 and is returned to the heater 3, chamber 2 is filled with nitrogen, and the fat is reintroduced into the chamber 2 for saturation with nitrogen; measured amounts of this fat are transferred to an evacuated tank 6 and are there mixed with the supplements, powdery supplements being delivered in controlled quantities by a pump 7 and liquid supplements by a pump 4; from the tank 6 the molten enriched fat is passed through a colloid mill 8, is then led by a line 90 to the top of a spray tower 10 and is therein sprayed downwardly against a rising current of nitrogen which has been filtered in a chamber 12 and cooled in a refrigerator 93, the pellets, of 0.020-0.050 in. in diameter, so produced being blown to a storage bin 14. Methods and apparatus are described for making pellets also by flowing the molten enriched fat into openings of desired shape in a chilled belt in an atmosphere of inert gas, and by dividing the molten enriched fat into a number of small, compact streams, solidifying and then cutting the streams, pellets measuring 0.050 to 0.125 in. in their various dimensions being so produced. Specification 644,988 is referred to.
Patent GB-1459514-A (GB)
Title: Electronic signalling
IPC: H04J7/00
Filed: 1974-02-11
Abstract: 1459514 Selective signalling WESTERN INDUSTRIES (PTY) Ltd 11 Feb 1974 [15 Feb 1973 16 Oct 1973] 06070/74 Heading G4H [Also in Division B7] In an arrangement for transmitting information in binary form along a railway track circuit, the information is transmitted as two frequency states during each cycle of a pulse generator and from the received signal a signal is derived at the pulse generator frequency to operate the track circuit relay. Transmitter 1 comprises a pulse generator 9, 10 providing an output which is width modulated in unit 5 by binary information supplied from coding network 7 via parallel series converter 6. The output of the modulator, comprising a train of pulses a-b, Fig. 2, with mark/ space ratios modified in dependence on the binary information, switches a frequency shift oscillator 4 to provide output signals at frequencies f1, f2 to the track circuit via amplifier 14. The signals are received by circuit 15 tuned to respond to signals at both frequencies, and applied via amplitude limiter 16 to frequency discriminator 17. From the output of the discriminator signals at the pulse generator frequency are selected by filter 18 and after amplification operate track relay 20, and the width modulated signals are applied to a converter 21 which supplies the binary information signals to series-parallel converter 22. Alternatively each period of the pulse generator output signal is divided into two equal duration parts, Fig. 8, which are arranged to switch the frequency shift generator to provide in each period either a reference frequency signal d and a lower frequency signal c for binary 0 or the reference frequency signal and a higher frequency signal e for binary 1.
Patent GB-1262352-A (GB)
Title: Apparatus for performing metallurgical processes
Inventor: OSTBERG JAN-ERIK
IPC: C21C7/00
Filed: 1969-02-05
Abstract: 1,262,352. Centrifugal separators. J. E. OSTBERG. 5 Feb., 1969 [6 Feb., 1968; 2 July, 1968; 23 Aug., 1968], No. 6141/69. Heading B2P. [Also in Division F4] An apparatus for effecting metallurgical processes (e.g. desulphurization, pre-refining or total processing of hot metal, vacuum treatment or making iron from ores) comprises a drum with means to rotate it about a vertical axis, means closing the upper periphery of the drum, feed means at the top of the drum and a passageway at the bottom, for introducing the materials for a countercurrent process, passages at the top and bottom, for the discharge of the products, which open into the drum at different distances from the axis of rotation thereof and a means for controlling the rate of discharge of material from at least one of these passages. The apparatus is especially suitable for gas-producing processes and can be used to prevent slag foaming. In Fig. 1 the reactants are fed from the charging means 13 and passageway 34 the products being discharged over the flange 15 at edge 15a and through channels 29 which have an inwardly-directed radial part to control the outlet rate by centrifugal force.
Patent GB-1131212-A (GB)
IPC: D06N3/12
Filed: 1966-02-11
Abstract: 1,131,212. Permeable laminates. CARL FREUDENBURG. 11 Feb., 1966 [17 Feb., 1965], No. 6168/66. Heading B5N. A permeable laminated material comprises a textile substrate having adhered thereto a polyelectrolyte gel having stabilized capillary passages therethrough. Specified polyelectrolytes are alginates, pectinates, collagen, cellulose esters and poly-(hydroxyethyl) methacrylates. The capillary passages may be stabilized by coating the walls thereof with a diepoxide, an aldehyde, an isocyanate terminated polyurethane prepolymer, a polyvinyl chloride, a polymethacrylate, a polyurea or a resin of formaldehyde with urea, melamine or phenol. The exemplified textile substrate is a non- woven nylon web bonded with a butadieneacrylonitrile copolymer. The two layers may be bonded by a film of a permeable adhesive or by a discontinuous non-permeable adhesive. The exemplified adhesive is a polyurethane.