baber/WOPTO huggingface dataset:
Patent GB-1445810-A (GB)
Title: Apparatus for separating dust from a dust-containing gas
IPC: B01D46/30
Filed: 1974-08-22
Abstract: 1445810 Separating dust from gas W BERZ 22 Aug 1974 [7 Sept 1973] 36971/74 Heading BIT An apparatus for separating dust from gas comprises filter tanks 1-4 each containing a filter layer, and each being connected to inlet channel 11a leading from dust preseparator 10, a filtered gas outlet channel 18 and a dustreceiving channel 16a. Each tank has a flap 5-8 and a flap 12-15 for closing its communication with channels 11a+18 respectively. Channel 16a connects through dust separator 17 and channel 16b with preseparator 10. The outlet channel 18 has a suction pump 34. In Fig. 1 tanks 1, 3, 4 are receiving gas from channel 11a, flaps 5, 7, 8 being open, and are discharging filtered gas into channel 18. Tank 2 is being cleaned by filtered gas from channel 18 passing through tank 2 from passage 24 to pipe 32. The gas picks up dust from layer 41 and carries it through open flap 13 to channel 16a. Screw 36 conveys dust which has settled out in channel 16a to outlet 47.
Patent GB-1022588-A (GB)
Title: Beam current measurement techniques
IPC: G01R31/25
Filed: 1963-09-19
Abstract: 1,022,588. Current measurement; testing discharge tubes. VARIAN ASSOCIATES. Sept. 19, 1963 [Oct. 8, 1962], No. 36974/63. Heading G1U. [Also in Division H1] To measure the current in a pulsed beam of charged particles, a measuring winding is inductively coupled to the beam, and/or to a conductor through which at least a portion of the beam current flows, and the current induced in the winding is measured. The invention may be applied to highpower pulsed electron beam tubes, such as klystrons and travelling-wave tubes, and particularly those having non-insulated collectors. As shown a klystron is provided with measuring windings 17, 20 on magnetic cores 16, 19 surrounding the beam adjacent collector 2, and cathode lead 13, respectively. Heater leads 10, 11 are arranged so that the magnetic fields accompanying current flow therein cancel out in the region of winding 20. The measuring windings 17, 20 are connected in subtractive relation, either as shown or in series, to give a direct indication of current flow to thin body shell 1 i.e. the difference between total current from cathode 3 and collector current. Monitor 28 may be provided with audio or visual indicating instruments and is connected to a control unit 28<SP>1</SP> for cutting off cathode power supply 12 or grid modulator 7 if the body current is too high. The measuring windings instead of being placed as shown may be at any two spaced positions along the beam, and, in particular, winding 16 may be supported on the end of the last drift tube adjacent an outwardly flared collector, Fig. 2 (not shown). Alternatively, a direct indication of body current may be obtained from a single measuring winding 48, Fig. 3 surrounding a coaxial sleeve conductor 41 connected between the body shell 40<SP>1</SP> and the positive terminal B<SP>+</SP> of the cathode power supply, so that both collector and body currents flow through sleeve 41 in a direction opposite to electron beam 50, and in the vicinity of the collector where the beam current will be equal to the collector current.
Patent GB-1115857-A (GB)
Title: Improvements in or relating to sound generator employing gaseous operating fluid
IPC: G10K9/18
Filed: 1966-08-18
Abstract: 1,115,857. Fluid pressure horns. KOCKUMS MEKANISKA VERKSTADS AKTIEBOLAG. 18 Aug., 1966 [24 Aug., 1965], No. 36989/66. Heading G5J. In a fluid pressure horn of the diaphragm type, the diaphragm 15 is held in engagement with an annular seat 12 separating the inlet passage 16 from the resonant cavity 17 by a resilient abutment such as an 0-ring 13 which engages the diaphragm around its perimeter on the same side as the annular seat, and an annular projection 18 on a cover member 11, which projection engages the other side of the diaphragm at points located radially inwardly from the line of engagement of the resilient abutment. Any increase in pressure of the fluid (e.g. steam) supplied to the inlet passage 16 forces the resilient abutment 13 outwardly and upwardly causing the diaphragm to be pressed more firmly against the annular seat 12. This compensating effect renders the horn less sensitive to pressure variations. In a modification (Fig. 2, not shown) the resilient abutment is a metal ring.
Patent GB-856945-A (GB)
Title: Snap action electric switch
IPC: H01H5/18
Filed: 1957-11-28
Abstract: 856,945. Snap-action switches; press-button retractive switches. HAGGLUND & SONER A.B. Nov. 28, 1957 [Nov. 28, 1956], No. 37062/57. Class 38 (5). A blade 10 with contacts 18 at each end is connected to an actuating-member 16 by coupling members 12, 14, which are integral with the blade. Downward movement of the member 16 causes the coupling members to pass through a dead-centre position and snap the blade 10 upwards. The contacts may be restored by pushing upwards on member 16, or by a retractive spring (Fig. 4, not shown).
Patent GB-1083762-A (GB)
Title: Improvements in or relating to bolt-action magazine rifles
IPC: F41A21/48
Filed: 1964-09-11
Abstract: 1,083,762. Rifles. MAUSER-WERKE A.G. Sept. 11, 1964 [Sept. 13, 1963], No. 37369/64. Heading F3C. In a bolt-action magazine rifle the bolt 14 is mounted for axial and angular displacement in a bridge 1 which is slidable on guide tracks on a receiver bed 2 that terminate level with the rear surface of the magazine 4. The bolt travel between fully open and fully closed positions is divided into two approximately equal movements, one provided by relative movement of the bolt relative to the bridge and the other by relative movement of the bridge relative to the bed. A breech head 3 is screwed on to the end of the barrel with the interposition of a two-part recoil plate and is provided with a recess into which projects a projection on the bed 2 to which the head is secured by a screw. Further screws secure the barrel to the stock.
Patent GB-344912-A (GB)
IPC: B61B15/00
Filed: 1929-12-07
Abstract: 344,912. Permanent way. SCHLOSSER, G., 263, Ander Wuhlheide, C÷penick, Berlin. Dec. 7, 1929, No. 37605. Convention date, Jan. 19. [Class 104 (ii).] In a rail transport system, particularly one in which the goods-carrying trucks are propelled and braked by mechanism arranged near the track, tilting of the trucks owing to eccentric loading &c. is prevented by the provision of guide rails c that engage guide rollers on the truck and are disposed in an horizontal plane lying above the track wheels b and beneath the underside of the truck body. In the arrangement shown in Fig. 1 two guide rails c are disposed vertically above the track rails, and the wheels b themselves function as the guide rollers by engaging, the under surfaces of the guide rails. In a modification, Fig. 4, adapted for a mono-rail truck, the guide rails c<1> are engaged by rollers b<1> rotating about, vertical axes, while the track shown is of a temporary construction, being carried on supports k through the intermediary of sleepers f, the length of which exceeds the width of the truck body. Reference has -been directed by the Comptroller to Specification 16901/02, [Class 104, Railways &c.].
Patent GB-326274-A (GB)
Title: A new and improved method of piston construction
IPC: F02F3/00
Filed: 1928-12-24
Abstract: 326,274. Neale, F. Dec. 24, 1928. Pistons.- In a piston in which a head 1 of aluminium or the like is cast on to a cast-iron or other skirt, the joint 3 between the head and the skirt is made of dovetail formation, in order to avoid distortion of the skirt bv expansion of the head. The skirt may be closed by a crown 5, or may be open ended. In either case the gudgeon-pin bosses are connected by ties 5<a>. The annular bearing portion 9 of the skirt is connected to the upper portion by strips 10 at points at right-angles to the gudgeon-pin bosses.
Patent GB-1485920-A (GB)
Title: Document shredding machines
IPC: B02C18/14
Filed: 1975-09-16
Abstract: 1485920 Document shredding apparatus A GOLDHAMMER 16 Sept 1975 [30 May 1975] 38113/75 Heading B2A Document shredding apparatus comprises a pair of shafts 1, 1a each having a helical flat 2. Identical shredding discs 6 each have a cut out such that when arranged on the shaft notches at the periphery of each disc will lie on a helical path, thus forming a helical groove. Each disc is spaced from its neighbour or neighbours by spacing discs 5. A scraper 7 mounted on the machine frame over each disc 5 scrapes shredded material from the knives 6.
Patent GB-1273794-A (GB)
Title: Improvements in or relating to magnetic recording systems
Inventor: FOSTER ALAN
IPC: G03G19/00
Filed: 1969-07-30
Abstract: 1,273,794. Magnetic printing; selective printing. INTERNATIONAL COMPUTERS Ltd. 16 July, 1970 [30 July, 1969], No. 38139/69 Headings B6C and B6F. Magnetic patterns or images are imposed on a magnetisable member, such as a tape with a magnetizable layer 2, by moving it past a magnetizing member while in contact with screening stencils 8. The screening stencils may be of a high permeability magnetic material such as permalloy, carried by a plastics film or a card fed from a recirculating storage drum and etched to a required pattern. Prior to imaging the layer 2 is magnetized uniformly in one direction, indicated by arrows 9, but imaging results in reversals of magnetism which will hold a ferromagnetic powder at their edges. Passage of an alternating current through magnetizing conductor 4 results in the production of numerous reversals in the parts of layer 2 not screened by the stencils. A further magnetic imaging system may be used to imprint selective data or portions of layers and protected by the stencils during the first imaging. The layer 2 may be carried on a drum or disc, and the stencils may be of copper, and screen by the induction of eddy currents.
Patent GB-1492097-A (GB)
Title: Turbine engine vane actuation system
IPC: F01D17/16
Filed: 1975-09-18
Abstract: 1492097 Turbomachines - guide vane actuation GENERAL MOTORS CORP 18 Sept 1975 [27 Sept 1974] 38325/75 Headings F1C and FIT [Also in Division H2] Adjustment of a row of vanes 38, Fig. 1, of a turbine or, as shown, a compressor 12 in a turbojet by-pass engine, including cranks 40 connected to a control ring 44, is effected by drive actuators 56, 62 and 76 converting rotary inputs into reciprocating movement at cam plates 52, 70 and 79 engaging pins 46 on one or, as shown, two control rings, the actuators being driven via drive cables 97, 99 and 101 from an engine-driven drive transfer unit 22 including, for each drive cable, a pair of electrically energizable fluid gap clutches comprising input rotors 136, 142, Fig. 4, fast with an enginedriven input shaft 100, and two output rotors 148, 154 respectively fast with an output shaft 150 and connected to the shaft via a reversing gear 176 including a central pinion 178 meshing via intermediate gears 180, 182 with a ring gear 184 mounted on a carrier 186 fast with the shaft 150. To balance the controlling input reaction, each actuator 56, 62 and 76 has a cable loop, e.g. 88 for actuator 56, driving a second actuator (90), Fig. 2, (not shown), reciprocating a second cam plate (93) engaging a pin (95) at a point on the ring diametrically opposite pin 46. The clutches may be replaced by magnetic particle clutches. Control may be effected automatically, e.g. in accordance with rotor speed, compressor inlet temperature discharge pressure and turbine discharge temperature.
Patent GB-1333276-A (GB)
Title: Functional fluid compositions
IPC: C10M169/00
Filed: 1971-08-16
Abstract: 1333276 Lubricants; hydraulic fluids MONSANTO CO 16 Aug 1971 [17 Aug 1970] 38343/71 Heading C5F Lubricants and hydraulic fluids comprise (i) more than 60% by wt. of a phosphorus amide of formula where Y is oxygen or Y 1  is oxygen or and R, R 1 , R 2 , R 3 , R 4  and R 5  are each alkyl, substituted alkyl, aryl or substituted aryl, (ii) 0À5-5% by wt. of an epoxide, and (iii) up to 5% by wt. of an aromatic or heterocyclic sec. amine. Many examples of these ingredients are given including glycidyl ethers, epoxidised oils and alkylene oxides. The composition may also include other heterocyclic amines substituted with amino groups, polyacrylates and methacrylates (many examples of these are given), polyurethanes and polyesters.
Patent GB-1493665-A (GB)
Title: Agricultural machine for tedding and windrowing
IPC: A01D78/10
Filed: 1975-09-23
Abstract: 1493665 Tedding and windrowing W REBER 23 Sept 1975 [1 Oct 1974] 38883/75 Heading A1F A machine for tedding and windrowing cut crops has at least two driven rotors 1 each having tool carrier arms 9 pivotably mounted on brackets 5, the brackets being pivotably jointed to a support 7 and to control rods 2 hingeably connected to the rotor driving hub 3. To change from a tedding position, Fig. 1, to a windrowing position, Fig. 2, the support 7, comprising a ring, is lowered and each bracket pivots anticlockwise about both its joints 6, 8 until an abutment 12 rigid with the bracket abuts the lower part of the respective control rod 2. In the tedding position an abutment 15 rigid with each tool carrier and having a cam guide surface 16 and an application surface 26 abuts a stop-piece 13 provided on the leading limb 14 of each control rod 2; the control rod being provided with two limbs between which the bracket 5 is mounted. When the machine is at rest in the windrowing position the tines 10 occupy the position shown in dotted lines Figs. 2, 3, but when the rotor is driven the tines are urged by centrifugal force, against the action of torsion springs, (23) Fig. 7 (not shown) by which the arms 9 are connected to the brackets 5, into their operating position shown in full lines. The control rods are held in their respective operating positions by a locking device 11.
Patent GB-1208627-A (GB)
Title: Thermolysis of alkoxy disilanes in the presence of alcohols
IPC: C07F7/18
Filed: 1968-08-16
Abstract: 1,208,627. Thermolysis of disilanes to form monosilanes. DOW CORNING CORP. 16 Aug., 1968 [18 Sept., 1967], No. 39322/68. Heading C3S. Alkoxymonosilanes of the formula (RO) n SiH- (CH 3 ) 3-n  are prepared by heating, e.g. at 175- 225‹ C. a disilane (RO) n (CH 3 ) 3-n SiSi(CH 3 ) 3-n - (OR) n  in the presence of an alcohol ROH under neutral conditions, R being a C 1-6  alkyl radical and n being 1, 2 or 3. In examples, the disilanes (CH 3 O) 3 SiSi(OCH 3 ) 3 , (CH 3 O) 2 (CH 3 )SiSi(CH 3 )- (OCH 3 ) 2  and (CH 3 O)(CH 3 ) 2 SiSi(CH 3 ) 2 (OCH 3 ) are heated in CH 3 OH at 200‹ C. to give the corresponding hydrogen monosilanes. Ethanol, propanol, isopropanol or butanol may also be used.
Patent GB-1368898-A (GB)
Title: Flat type balanced armature relay
IPC: H01H50/34
Filed: 1972-08-24
Abstract: 1368898 Polarized balanced armature relays MATSUSHITA ELECTRIC WORKS Ltd 24 Aug 1972 [30 Sept 1971] 39423/72 Heading H1N A polarized balanced armature relay comprises a magnetic base 1 with projecting polepieces 2, 2<SP>1</SP> and having thereon a coil bobbin 12 which surrounds a pivoted armature core 5 mounted on a pin 9 and co-operating with the polepieces 2, 2<SP>1</SP> and the ends 16<SP>1</SP> of a yoke 16 arranged with the permanent magnet 16 between the yoke 16 and hose 1. A non-magnetic frame 20 is secured to the base by feet 22 to retain the yoke bobbin and permanent magnet and has spring arms 21, 21 which can bear on glass insulators 8 on the ends of armature extensions 7. Movable contact springs 18, 18<SP>1</SP> pass between the insulators 8 to move therewith and co-operate with fixed contacts 17, 17<SP>1</SP> on insulated terminals 3. The bias of the springs 21, 21<SP>1</SP> can be such as to provide a one side stable, bi-stable or centre stable relay.
Patent GB-1401543-A (GB)
Title: Photographic silver halide film unit receiving element and process
IPC: G03C8/48
Filed: 1972-08-24
Abstract: 1401543 Photographic dye image-receiving material EASTMAN KODAK CO 24 Aug 1972 [24 Aug 1971] 39427/72 Heading G2C A dye image-receiving element comprises a support bearing, preferably in order, a light reflecting layer containing an opacifying agent and, as binder, a vinyl polymer containing anionic alkaline aqueous solution, solubilizing groups and a dye image-receiving layer. Alternatively the light reflecting layer and dye image-receiving layer may be incorporated in a photographic film unit comprising a support bearing at least one photosensitive silver halide emulsion layer, the or each emulsion layer having associated therewith a dye image-providing material, and a rupturable container containing an alkaline aqueous processing composition and which is positioned so that when a compressive force is applied thereto its contents are discharged within the film unit into contact with the silver halide emulsion layer. The receiving element may comprise a pH-lowering layer between the support and the light reflecting layer. The light reflecting layer may contain titanium dioxide as opacifying agent and may contain zinc oxide or be contiguous or adjacent a layer containing zinc oxide (see Specification 1398286). The light reflecting and dye image-receiving layers may each contain a basic polymeric mordant (Specification 1397646). The vinyl polymer may comprise repeating units of acrylic acid, sulphoalkyl  acrylate or sulphoalkylmethacrylate, e.g. copoly (ethyl acrylate-acrylic acid-2-aceto-acetoxyethyl methacrylate), copoly (ethyl acrylateacrylic acid), or copoly (n-butyl acrylate-3- acryloxypropane-1-sulphonic acid sodium salt- 2-acetoacetoxy ethyl methacrylate). The silver halide emulsion layers may be direct-positive.
Patent GB-1529353-A (GB)
Title: Heat-recoverable articles
IPC: B29C61/10
Filed: 1975-09-26
Abstract: To simplify assembly and to achieve a fool-proof sealing and fixing of the connecting point of elongate objects, a heating device is installed in the enveloping device which, at least in certain sections, is capable of recovering its shape under heat. The said heating device has an electrically conducting polymer material with a positive temperature coefficient of resistance, in order to avoid undesired and harmful overheating. If a current flows through the heating device, the heat thus generated causes the enveloping device to recover its shape and, after recooling, fixes the connecting point in a sealing manner. The fool-proofness is of significance in the case of electrical equipment and installations, quite particularly in the case of electronic equipment and installations. <IMAGE>
Patent GB-1186209-A (GB)
Title: Fastening Device for Transom-Windows.
Inventor: KEWLEY BENJAMIN
IPC: E05C17/18
Filed: 1967-06-17
Abstract: 1,186,209. Releasable fastenings. B. KEWLEY. 11 June, 1968 [17 June, 1967; 30 Aug., 1967], Nos. 28013/67 and 39572/67. Heading E2A. A fastening device for a transom window comprises a guide housing 11 securable to the fixed frame of the window in the region of the window staybar and being provided with a base 14 having a first slot 15 extending along a portion of the bore and communicating with the exterior of the housing, a retaining member in the form of a rod 19 having an enlargement 21 at one end displaceable with the rod in the bores and having a hook portion 20 at the other end outside of the bore and engageable over said staybar, and a collar 17 around the rod being slidable in the bore with a handle 18 projecting through and slidable in the first slot and rotatable out of an end of the first slot remote front the hook portion into a second slot 16 substantially transverse to the first slot and also communicating with the exterior of the housing, for retention of the rod enlargement at said end.
Patent GB-1002012-A (GB)
Title: An improved method for making paper
Inventor: ROBERTSON JULIUS DUCKWORTH
IPC: D21H17/22
Filed: 1963-10-08
Abstract: Paper is made by preparing an anionic equeous dispersion of cellulosic fibres, dispersing a protein in an acid solution to produce a cationic dispersion, mixing these two dispersions, adjusting the pH of the mixture to substantially the isoelectric point of the protein, and forming paper from the resulting stock. The protein may be casein, soyabean protein or cottonseed protein, and the acid may be hydrochloric, acetic or formic.  The final adjustment of pH may be by the use of acid, or aluminium sulphate.
Patent GB-809880-A (GB)
Title: Pair of spectacles with hearing device
IPC: G02C11/06
Filed: 1956-12-31
Abstract: 809,880. Spectacle frames. DANAVOX. A. S. Dec. 31, 1956 [Dec. 30, 1955; April 25, 1956; Aug. 29, 1956], No. 39587/56. Class 97(1) [Also in Group XXXIX] The microphone and the receiver of a hearing aid set are mounted, with other elements, in detachable end units 2, 4 fitting the opposite sidepieces 1, 3 of a spectacle frame. Each side-piece comprises three metallic rods or a strip 5, Figs. 2, 3 and two rods 6, 7 embedded in insulating material. The rods serve as electrical conductors and as strengthening elements and the ends of the rods form the contacts of plugs engaging sockets 9 in the end units. The plugs are fixed in the sockets by set screws 17, or by spring catches. The strips 5 in the two side-pieces are electrically connected to the hinges 11 (not shown in Fig. 5) which are interconnected through the front frame 16. The other two conductors 6, 7 are connected to contacts 12 which engage contacts 13 on the front 16 only when the hinges are open. The contacts 13 are interconnected by insulated wires 15 within the frame. A standard side-piece is made 'with a short insulating base 5a, Fig. 7, to which is cemented a spacing bar 7a of suitable length. The bar 7a is formed with holes to accept the rods 8a. The bars are available in different lengths. The rods 8a are trimmed to a suitable length before fitting the spacing bars. The section of a modified side-piece is reduced near the hinge and the electrical connections from rods 10a 12a, Fig. 9, are extended by insulated wires which are housed in a groove 15a formed in the third rod 13a which alone extends to the hinge.
Patent GB-885612-A (GB)
Title: Improvements in or relating to trialkyl aluminium compounds and their preparation
IPC: C08F10/00
Filed: 1959-11-23
Abstract: Ethylene is reacted with an organic compound of aluminium of formula <FORM:0885612/IV (b)/1> when R is a hydrocarbon group of formula <FORM:0885612/IV (b)/2> when X is a saturated C1-C10 alkyl group, Y is hydrogen or a saturated C1-C10 alkyl group and Z is a saturated C1-C100 alkyl group, and when R1 is either R or hydrogen, to give a mixture of straight and branched chain alkyl aluminium compounds. The reaction conditions are, pressure, 250 p.s.i.g.-10,000 p.s.i.g., temperature, 70 DEG C.-160 DEG C. and time 1 hour-100 hours.  The ratio of ethylene to organic aluminium compound may be between 1/1 and 1,000/1. Specifications 763,824, 770,707 and 835,555 are referred to.