baber/WOPTO huggingface dataset:
Patent GB-236221-A (GB)
Title: Improvements in feeding devices for elevators
IPC: B65G65/00
Filed: 1925-06-25
Abstract: 236,221. Klein, A. June 26, 1924, [Convention date]. Feeding-devices for endless-chain elevators; rotary elevators.-Material is held on the drum a by which it is fed to the elevator b either by magnetic attraction, Fig. 2, or by suction, Fig. 3. In each construction the axle e of the drum is pivotally mounted in links c pivotally mounted on the shaft d of the lower drum of the elevator, and the drum is driven from this roller by chain- and-sprocket gearing. The adjustment of the links c is limited by stops f. The magnet g, Fig. 2 is secured to the links c and is of such length that the material is released at a position where it will fall into the elevator. A partition h, Fig. 3, is mounted within the drum so as not to rotate with it. The surface of the drum is provided with funnel-shaped openings m, and its interior to the left of the partition h, Fig. 3, is in communication with a suction pipe i. The suction may be increased by a screen t mounted on extensions of the links c.
Patent GB-739560-A (GB)
Title: Improvements in or relating to delay electric blasting caps
Inventor: NODDIN GEORGE ADELBERT
IPC: F42B3/16
Filed: 1954-06-03
Abstract: 739,560. Blasting fuzes. DU PONT DE NEMOURS & CO., E. I. June 3, 1954, No. 16397/54. Classes 9(1) and 9(2). An electric blasting cap is provided with a delay element comprising 0À5 to 3À0 per cent amorphous boron and 99À5 to 97 per cent red lead, the proportions being selected by weight. The red lead or the mixture of red lead and boron may be treated with a graining agent applied as a solution, the treated material being then dried to remove the solvent. The quantity of graining agent deposited is preferably between 0À5 and 1À5 per cent of the total composition. Graining agents which may be used are gums, shellac, aqueous solutions of higher polyethylene glycols, methyl cellulose, polyvinyl alcohol, or water-soluble waxes or benzene solutions of liquid polyfunctional mercaptans. In Fig. 1 the copper alloy shell 1 contains a compressed base charge 2 of tetryl in which is embedded a primary charge 3 of lead azide or other detonating compound and a compressed charge 8 of the delay composition. A rubber plug 4 supports the leg wires 5 and a connecting bridge wire 6 on which is a bead 7 of combustible material. In one modification a metal capsule is inverted over the delay charge and in a second the charge is placed in an axial passage through a metal cylinder. In Fig. 4 (not shown) a metal capsule having a flash hole is inverted over the primary charge. Above the delay charge 8 is a perforated capsule containing an ignition charge which surrounds the bridge wire. The capsule may be omitted and the delay charge be confined within the bore of a metal cylinder. In the embodiment of Fig. 4, the ignition mixture comprises 2 parts amorphous boron and 98 parts red lead.
Patent GB-272964-A (GB)
Title: Improvements in car couplers
IPC: B61G3/16
Filed: 1927-06-20
Abstract: 272,964. Gage, C. H. June 18, 1926, [Convention date]. Couplings, automatic. - A car-coupler comprises a head 15 pivotally secured by a pin 24 to a draw-bar 19 for swinging movement in the horizontal direction within coupling limits, the outer end of the coupler head being provided with a flange 16 to contact with a similar flange on a companion coupler, for automatic adjustment and coupling and a knuckle 30 being secured to the coupler head for engagement with a gravityactuated pin 36 on the companion coupler. The pin 24 passes through an elongated slot in the draw-bar, the end of the draw-bar being curved in the horizontal and vertical planes to present convex surfaces to a horizontal concave and vertical convex surface on the coupler head. The pin 36 is provided with a pin 43 adapted to slide in a slot 41 in a front web 28 of the coupler and is provided with a lateral bulbous extension 38 for engagement with the knuckle, the bottom edge of the extension being curved at 40 for automatic lifting of the pin by the knuckle during coupling. The heads of the pins are each provided with a projection 50 and a recess 53 which interangage during the coupling operation and which enable both pins to be raised simultaneously by an uncoupling lever, the end of the lever working in an elongated hole in the head of the pin Fig. 4 (not shown), so that in the event of the draw-bar breaking, the uncoupling rod is automatically disconnected. The end of the knuckle is bevelled for centralizing the heads during coupling and the shape of the knuckle is such that the head may be coupled to a pivotedknuckle type of coupling. Specifications 4579/00, 26046/04 and 8362/07 are referred to.
Patent GB-554161-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H03J3/00
Filed: 1941-12-19
Abstract: 554,161. Variable condensers. STANDARD TELEPHONES & CABLES, Ltd., and PRIOR, H. T. Dec. 19, 1941, No. 16400. [Class 37] For the purpose of adjusting the frequency of an oscillator over a narrow range, a variable condenser comprises a set of one or more fixec plates B, a set of movable plates C and a second set of movable plates C, the plates A and C being independently adjustable, in directions mutually at right-angles, the arrangement being such that, in one position of plates A, the capacity between plates C and plates A and B is constant for all positions of plates C. As shown this position is the maximum capacity position. By varying the position of C, the range covered by the full movement of plates A can be varied. The projections a<SP>1</SP>, b<SP>1</SP>, b2 compensate for " edge effects." In modifications, the plates C are tilted or curved in respect to the plates A and B or have dielectric slabs of tapering thickness, both to alter the rate of change of capacity, and hence of range, with linear motion of the plates C. The same principle may be adapted for use with multi-vane condensers and with those with plates forming parts of co-axial cylindrical surfaces.
Patent GB-312612-A (GB)
Title: Improvement sail, mast, and rig for sailing boats
IPC: B63B15/02
Filed: 1929-05-28
Abstract: 312,612. Krussand, D. May 28, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Masts; rigging; sails.- Twin masts A, B stepped near the gunwales amidship are connected near the deck by a boom F and near the top by a cross-stave which respectively serve as athwartship guides for the yard P and the boom G which support the main sail N. The. jib is carried by a sprit K connected to the boom G.
Patent GB-440313-A (GB)
Title: Universal transmission joint
IPC: F16D3/34
Filed: 1935-06-06
Abstract: 440,313. Universal joints. PRECISION MODERNE, 162, Rue St. Charles, Paris. June 6, 1935, No. 16450. Convention date, June 7, 1934. [Class 80 (ii)] A constant-velocity-ratio universal joint comprises at least three spherical segments 6, which are normally spaced apart and which are freely mounted for independent angular movement on a centring disc 7, between spherical flanges 3 on the ends of the two shafts 1, 2, four such segments being shown. Each flange 3 carries uniformly-spaced rollers 5 engaging grooves 6<1> in the segments; or the segments may carry rollers engaging uniformly-spaced grooves in the flanges. A cover 8, which is secured by screws 8<11> to one of the segments, has spherical engagement with the two flanges 3.
Patent GB-379752-A (GB)
Title: Improvements in or relating to the cementation of iron and steel and their alloys
IPC: C23C8/40
Filed: 1931-06-05
Abstract: In a process for maintaining the activity of cyanide cementation baths, the alkalies or alkaline-reacting substances, which are formed by the decomposition of the cyanides and which hinder the cementation process, are rendered innocuous by being converted into non-alkaline or less alkaline substances by the periodic or gradual addition, during the process, to the melt bath of salts other than cyanides, e.g. chlorides, of elements the cyanides of which decompose more readily than the cyanides already present in the bath, the cations of these salts being less electropositive than those of salts already present.  The salts may also be added in conjunction with the fresh supplies of cementing substances when replenishing the bath, the composition of the mixture being so selected that it contains sufficient cyanide to produce the original cyanide content of the bath and also a sufficient quantity of the salts to produce the same conditions as at the commencement of the process.
Patent GB-998577-A (GB)
Title: Improvements in or relating to swashplate type pumps
IPC: F04B1/32
Filed: 1962-04-30
Abstract: 998,577. Reciprocating pumps. RECHERCHES ETUDES PRODUCTION R.E.P. April 30, 1962 [May 5, 1961], No. 16495/62. Heading F1A. In a variable output swash-plate pump, the swash plate 7 is tiltable by pistons 15, 22 acting through rocker arms 12, 13 pivoted about axes 28, 29 parallel to the axis of tilt of the swash plate. Rocker arms 12, 13 are engaged by pistons 15, 22 through rollers 30, 31 and contact swash plate 7 through arcuate surfaces 32, 34, 33, 35 of suitable shape to prevent sliding. The rollers and bearing surfaces may be interchanged. The bearing surfaces may be formed on inserts located in the surface of the swash plate.
Patent GB-1428264-A (GB)
Title: Ultrasonic delay line
IPC: H03H9/36
Filed: 1973-04-06
Abstract: 1428264 Ultrasonic delay lines MITSUMI ELECTRIC CO Ltd 6 April 1973 [6 April 1972] 16606/73 Heading H3U Delay lines are provided in which at least one beam reflecting mirror surface D 1 , Fig. 2, D 1 , D 5 , Fig. 22, has an elliptical, or D 2 , Fig. 13, plane bounded by elliptical, profile, acting to refocus spread components 5a, 5b of an ultrasonic wave from input transducer 2 on to the output transducer 2<SP>1</SP> without changing their transit time compared with the main beam. A single input/ output transducer may be used. The foci of the ellipse are positioned either at the centre points of transducers when regarded as point sources, or at virtual images of same in plane reflecting surfaces of the delay line, Fig. 2; Figs. 1,3-9 (not shown), or at intermediate points of the beam path at which the beam refocuses, there being 2, 3, or 4, elliptical profiled surfaces in the delay line, Fig. 22; Figs. 19-21, 23-26 (not shown). When the transducers are regarded as sources distributed over their areas, with spreading in the regions 5c#5a, 5d#5b, Fig. 13, a plane portion d p  reflects the non- spreading part of the beam, elliptical portions d a , db, having as foci, either the edges a 0 , b 0 , a 0 <SP>1</SP>, b 0 <SP>1</SP> of the transducers, or virtual images of same in plane reflecting surfaces of the delay line, refocusing the spreading parts of the beam back on to the output transducer, see also Figs. 10- 12, 14-18 (not shown). The surface which would otherwise support the output transducer may act to reflect the beam back to the input transducer, a single transducer delay line with doubled delay time thus being produced. The delay medium is elinvar, ceramic, or glass and is 0À5-5 acoustic wavelengths thick, the transducers being adhesively bound thereto and polarized parallel to the major surfaces. The eccentricity of the elliptical profile surfaces depends on the precise delay time required, the latter being the same for non-spread, and spread and refocused, parts of the beam.
Patent GB-983648-A (GB)
Title: Method of preparing colour couplers for cyan
IPC: G03C7/34
Filed: 1961-05-08
Abstract: Compounds of formula <FORM:0983648/C2/1> wherein Ar is a monocyclic aromatic radical of the benzene series, Y is -O-, -S-, -NHCO- or <FORM:0983648/C2/2> , R is an aliphatic radical comprising a C5- 20 linear chain and M is H, alkali metal or ammonium, are prepared by condensing a compound H2N-Ar(Y-R)SO2F with 1-hydroxy-2-naphthoic acid or an acid halide or an aryl ester thereof and saponifying the -SO2F group in an alkaline medium. When Y is -NCHO-, the method may be modified by using H2N-Ar(NO2)SO2F and subsequently reducing the nitro group in the product and acylating the amine so formed. Examples describe the production, as sodium salts, of 1-hydroxy-2-naphthoic acid anilides wherein the phenyl group is substituted as follows:-(1) 2-cetyloxy - 5 - sulpho; (2) 2 - cetylmercapto - 5 - sulpho; (3) 3 - sulpho - 4 - cetylmercapto; (4) 2-palmitoylamino-4-sulpho.
Patent GB-1575283-A (GB)
Title: Web winding device
IPC: B65H19/30
Filed: 1978-04-27
Abstract: Two supporting rollers (5) are mounted in a movable frame stand (2) parallel to one another and rotatably, in such a way that they do not touch one another. A winding core (7) is guided displaceably in an axis-parallel manner between these supporting rollers (5) so as to be supported on them and is fastened releasably. Two centring cones (8) which are located opposite one another in an axis parallel to the axes of the supporting rollers (5) serve for the releasable mounting of the winding core (7). These centring cones (8) are mounted freely rotatably in stanchions (9) which, on the one hand, are adjustable in the frame stand (2) towards one another and away from one another or by means of a threaded spindle (11) and, on the other hand, are displaceable up and down in a parallel guide (10). This apparatus makes it possible to exchange the winding core (7) quickly and reliably without tools, whilst winding cores of differing lengths can also be used. <IMAGE>
Patent GB-913117-A (GB)
Title: Improvements in or relating to tobacco cutting machines
IPC: A24B7/12
Filed: 1960-05-12
Abstract: 913,117. Tobacco cutters. MASCHINENFABRIK UND EISENGIESSEREI A. HEINEN G.m.b.H. May 12, 1960 [May 13, 1959], No. 16748/60. Class 5(1). Tobacco cutters 14 are secured on retaining plates 15 of a rotor 10 mounted on a shaft 12 which is parallel to the shorter edges of a mouth piece 11 through which the tobacco to be cut is discharged. The cutters are ground by a grinder 16 and are cleaned by a cleaning roller 17, sprayed with glycerine inside a casing 18.
Patent GB-1345268-A (GB)
Title: Apparatus comprising a barrel for processing fluent material and a ram member for discharging material therefrom
IPC: B29C45/46
Filed: 1971-05-25
Abstract: 1345268 Position control CINCINNATI MILACRON Inc 25 May 1971 [25 May 1970] 16777/71 Heading G4H In injection moulding apparatus, in which a ram 20 is first forced to the left in Fig. 1 to a preset position X S  by material being fed into the cavity 21 and then driven to the right to discharge the material into mould 12, the position C R  at which the ram should be stopped after injecting material into the load is compared with the actual position at which the ram is stopped by virtue of the mould being filled and any difference is used to determine a new retraction position X OS  for the next mould. The position C R  is chosen such that the mould is filled and pressure is maintained until solidification of the plastics material. Input signals corresponding to the positions X S  and C R  are fed to a controller 37 which compares them with the instantaneous position of the ram (measured by counting pulses from a transducer 36 driven by the ram) the controller energizing a motor driven pump 28 to operate a piston 26 when the position X S  is reached. When the mould is full the position of the ram is compared with the required position C R  to determine the new retraction position. If the ram engages the end portion 16 indicating that the retraction distance is considerably less than required the error signal may be multiplied by a factor to achieve the new position more quickly. The transducer may be a shift encoder or a resolver followed by a Schmitt trigger.
Patent GB-1087006-A (GB)
Title: Coumaranyl-carbamic acid esters and their use as insecticidal and acaricidal agents
Inventor: HEISS RUDOLF
IPC: C07D307/86
Filed: 1966-04-18
Abstract: The invention comprises coumaranyl-carbamic acid esters of the general Formula I <FORM:1087006/C2/1> wherein R is hydrogen or a lower (up to C4) aliphatic hydrocarbon radical and R1, R2, R3 and R4, which may be the same or different are hydrogen or lower (up to C3) alkyl radicals. They are preferably prepared by reacting a compound of Formula II with an acid anhydride of the formula (RCO)2O, optionally in the presence of an inert organic solvent and generally at a temperature of 70-170 DEG  C.  An acidic catalyst, e.g. sulphuric or p-toluene sulphonic acid, may be present and the anhydride is preferably employed in an excess. The compounds may also be prepared (a) by reacting a compound of Formula II with the appropriate acid halide, (b) by reacting appropriate coumaranyl-chloroformic acid esters with appropriate acylamines, or (c) by reacting appropriate hydroxycoumaranes with appropriate N - methyl - N - acyl - carbamic acid chlorides. The compounds have insecticidal and acaricidal properties (see Division A5).ALSO:An insecticidal or acaricidal composition comprises a compound of the general formula:  <FORM:1087006/A5-A6/1> where R is hydrogen or a lower (C1-4) aliphatic hydrocarbon radical and R1, R2, R3 and R4 which may be the same or different are hydrogen or lower (C1-3) alkyl radicals, and a solid or liquid diluent or carrier.  The compounds which may be admixed with known active ingredients, may be employed in the form of solutions, emulsions, suspensions, powders, pastes or granules and the formulations generally contain between 0.1 and 95% by weight of the active compound.  The formulations may be applied, e.g. by spraying, sprinkling, watering, scattering or dusting.  The composition may also contain surface active agents, i.e. emulsifying and/or dispersing agents.  The active compounds are suitable as insecticides and acaricides in plant protection and also for combatting hygiene pets.
Patent GB-279747-A (GB)
Title: Improvements in nails, staples or the like
IPC: F16B15/02
Filed: 1927-06-25
Abstract: 279,747. SandÚn, O., and Friman, C. June 25, 1927. No Patent granted (Sealing fee not paid). Hook-headed nails; staples. - A hookheaded nail for securing wire netting to walls has a flat abutment 10 at the end of its shorter shank to prevent it piercing the wall and to hold the covering 15 to the wall and a loop 9 to hold the wire at the required distance from the wall.
Patent GB-407661-A (GB)
Title: Turbo-motor
IPC: F01C1/20
Filed: 1932-06-15
Abstract: 407,661. Rotary engines. SOC. LES TURBO-MOTEURS GUY, 24, Boulevard Sebastopol, Paris. June 15, 1932, No. 16957. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 18, 1932.] [Class 110 (ii).] An engine operated by combustion products, compressed air, or steam, comprises a piston disc 6 carrying a piston 7 which moves in an annular expansion chamber 2, and a rotary abutment 8 containing a recess 10 to accommodate the piston 7 when it passes, and also to connect the working- fluid supply ports 12 with the expansion chamber. The crosssectional area of the abutment chamber is greater than that of the chamber 2. The rotors 6, 8, move in torus-shaped chambers, and are supported on shafts 4, 9, connected externally by gearing. A pinion 14 on the shaft 4 meshes with a pinion 15 on a stud 15<a> in the casing. Pinion 15 carries eccentrically a pinion 16 through a pin 16<a>, the latter pinion meshing with a gear 18 which drives a gear 17 on the abutment shaft 9. Gear 18 is supported by a pin 18<a> held by two links 19, 20, pivoted to the shaft 9 and pin 16<a> respectively. The shaft 9 is thus rotated at a varying angular velocity. The eccentricity of the pin 16<a> is variable through the action of a rack and pinion gear 21, 22, Fig. 4. The rack slides in a slot 15<b> in the pinion 15 and the pinion 22 is pivoted to a stud 23 secured to the pinion 15. A finger 22<a> bears in a groove 24<a> on a sleeve 24 which is caused to move axially through the action of a hand-wheel 27 on a spindle 25 and a fork 28 carrying pins 28<a> which extend into a groove 21<b> on the sleeve 24. A flywheel 4<a> is carried on the shaft 4. Lubrication is secured by centrifugal action or under pressure. In a further arrangement, Fig. 5, three piston discs 6, 6<a>, 32 are secured to one shaft and cooperate with three abutments 3, 3<a>, 29. Two units are motors and the centre unit acts as a compressor for supplying working fluid to the motors. The centre piston disc carries two pistons secured diametrically opposite to one another. The two shafts 4, 9, are connected by gears 44, 45, of the same diameter. An exhaust port similar to 13<a> in Fig. 1 is provided for each motor chamber and in addition a tangential conduit connects the main exhaust pipe with the working chamber close to the point of meshing of the piston and the recess in the abutment. Piston rings or oil grooves are provided for packing purposes. In further modifications the compressor unit may feed one or more than two motor units.
Patent GB-1309781-A (GB)
Title: Method for fractionating sperm
IPC: A01K67/02
Filed: 1970-04-09
Abstract: 1309781 Fractionating sperm W SHRIMPTON 9 April 1970 [10 April 1969] 17026/70 Heading B1D [Also in Division C6] Sperm is fractionated into the female-producing X sperm and male-producing Y sperm by cooling a mixture of the sperm and a nutrient medium to a temperature of about 0.8C to immobilize the sperm and introducing the cooled mixture into a column of separating medium comprising nutrient medium, to allow separation of the sperm to different levels. A uniform density gradient of separation medium e.g. milk and cream, in the columns 35, Fig. 5, is achieved by combining progressively increasing/decreasing proportions of two liquids of different densities from containers 21 and 22, Fig. 5, by raising/lowering the containers relative to each other by means of a pulley and cable. Mixed liquid of increasing density is introduced into the columns 34 upwardly from the bottom. Further liquid of slightly greater density is then added from container 35. The cooled mixture of sperm and nutrient medium is dispensed from a refrigerated container 47 into spouts 48 and valves 46 are operated to introduce the sperm into the column at the point 44 of average or median density, corresponding to the sperm sample density. X sperm fractions are withdrawn from the bottom of the columns through stopcocks 43. Y sperm fractions may be recovered by draining the entire column or directly, from the top of the column, by means of a pipette. Fractionation efficiencies can be increased by applying a negative pressure of up to 50.8 cm Hg to the columns. Positive pressure may assist the withdrawal of the fractions. Subdued or infra-red light are desirable. According to a further embodiment, Figs. 6 to 8, fractions of the least dense sperm (Y sperm) are withdrawn from the top of column 60 through successively lower apertures 62 into vials 66 by opening valves 64, the central portion is emptied through a single valve 106 and fractions of the densest sperm (X sperm) are withdrawn into vials through successively lower apertures at the bottom of the column. The valves are sequentially operated by actuators through spring-biased cam followers 79 responsive to rotating cams 80 and 82 at the top and bottom of the column, respectively. The column is cooled by a flow of refrigerated air within a chamber 90 generated by impeller 88.