baber/WOPTO huggingface dataset:
Patent GB-616087-A (GB)
Title: Improvements in or relating to a heavy-media separation process
IPC: B03B5/44
Filed: 1946-08-27
Abstract: In a sink and float separation the separately collected "sink" and "float" fractions are drained, at least a part of the "sink" fraction draining with sufficient water to maintain the density is returned to the lower levels of the separatory vessel, the drained "sink" and "float" fractions are washed and the medium recovered from the washings is returned together with part of the drainings from the "float" fraction and sufficient water to maintain the density to the upper levels of the separatory vessel.  The part of the drainings which is not recycled is added to the washings and may be treated to produce a fine "sink" or fine "float" fraction and clean medium.  The solid phase of the medium, may be magnetizable.  Specification 590,481 is referred to.
Patent GB-335185-A (GB)
Title: Improvements in or relating to the manufacture of polymerisation products of unsaturated ketones
IPC: C08F12/08
Filed: 1929-03-15
Abstract: 335,185. I. G. Farbenindustrie Akt.- Ges. March 16, 1928, [Convention date]. Divided on 307,936. Ketone resins. - Ketones containing an aliphatic chain with one double bond only, such as methylene methylethyl ketone, are polymerized in emulsion with an aqueous emulsifying agent or colloidal solution. In an example, methylene methylethyl ketone is agitated, with a 1 per cent solution of sodium oleate, for 8 days at 60‹ C., yielding a bright yellow resin.
Patent GB-338899-A (GB)
Title: Improvements in controlling apparatus for fluid pressure systems
IPC: G05D16/18
Filed: 1929-08-22
Abstract: 338,899. Triggs, W. W., (Scovill Manufacturing Co.). Aug. 22, 1929, Valves actuated by pilot or relay valves.- Apparatus for controlling a plurality of fluid-operated units from a central point comprises a common valve-chamber 615 having a common fluidpressure inlet 616 and a plurality of slide valves 620 in said chamber, movable on a face 602 provided with sets of inlet and outlet ports 606, 607, 608 communicating with inlet pipes 604, 605 and a common longitudinal exhaust bore 609 respectively, the bore 609 being connected to exhaust pipes 610, 611. Each set of ports is controlled by a slide valve actuated by a separate control-element to permit the inlet and exhaust of pressure fluid to and from a fluid-operated unit. Each slide valve is actuated by a differential-piston arrangement 622, 625 on its spindly 621, pressure fluid from the common chamber 615 being bye-passed through a common pipe 634, a common longitudinal bore 633, and bores 632, 631, 630 to the outer face of the piston 622 in the cylinder 623. The bye-pass is controlled by a solenoid-actuated pilot valve 636, 635 of the type described in Specification 338,898, the D.C. circuit of which is made and broken by an A.C. contactor device operated automatically by some moving part of the controlled unit, or the solenoid-actuated pilot valve may be actuated manually and locked mechanically by means of a. lever-and-cam arrangement 693, 692 co-acting with a button 690 on the movable core of the solenoid. The slide valves may operate hydraulic valve units controlling hydraulic power units or they may operate the power units directly, the pipe connections being varied according to the mode of operation of these devices.
Patent GB-485726-A (GB)
Title: Improvements in or relating to firing mechanism for automatic firearms
IPC: F41A19/33
Filed: 1937-09-21
Abstract: 485,726. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST, BRNO. Sept. 21, 1937, No. 25608. Convention date, Sept. 24, 1936. [Class 92 (ii)] Relates to trigger mechanism for automatic guns adjustable for single shot, continuous fire or safety, and consists in arranging on a trigger-rod 10, which is pushed for firing and rotated for change-fire adjustment, an interrupter member Y which follows the movement of the trigger-rod to actuate a sear 5 for firing and which moves relatively to the trigger-rod when this is rotated to change the fire. In the form shown, the interrupter during adjustment is arranged to rock on a fulcrum bearing 27 on the trigger-rod, its rear end. being raised by a projection 36, Fig. 3, on the rod when this is rotated through 45 from a central safety position to the continuous-fire position, and lowered by a projection 37 on the rod when this is rotated through 45 on the other side of the safety position for single-shot adjustment. The firing button 14, Fig. 9, has a face 17 for engagement with a fixed stop 20 in the central safety position and slots 18, 19 to permit of pressing the button for single-shot and automatic fire respectively. Fig. 1 shows the trigger-rod in the safety position in which a projection 42 appears beneath a part 43 of the sear to prevent accidental release thereof. For continuous fire, the arm 28 of the interrupter is in lowered position for engagement with the part 3 of the sear when the trigger-rod is pressed. For single-shot fire, the arm 29 of the interrupter is in raised position and is then in the path of a projection 31 on the breech block. This projection rocks the interrupter so that its arm 28 engages in an aperture 4 in the sear to permit the sear to slip back into operative position for engagement with the bent 6 on the breech block. The trigger must then be again pressed to fire another shot.
Patent GB-340207-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H04R9/02
Filed: 1929-08-22
Abstract: 340,207. Sound reproducing and transmitting devices. SWIFT LEVICK & SONS, Ltd., HORSBURGH, G. D. L., and LEVICK, H. S., Clarence Steel Works, and DARWINS, Ltd., Fitzwilliam Works, Templeborough, both in Sheffield. Aug. 22, 1929, No. 25617. [Class 40 (iv).] A permanent magnet particularly for a sound reproducing or transmitting apparatus is constructed by casting a block of magnet steel in the form of one or more loop-like limbs extending outwardly from the base of a body portion of which they form an integral part, and inwardlv towards the crown of the body portion, the crown and adjacent ends of the limbs being separated by a space within which are provided pole pieces of soft iron, cobalt iron or other material of high permeability preferably in the form of rings or extensions suitably shaped to form an air gap between them. The magnet steel used preferably contains 9 per cent-35 per cent of cobalt. As shown in Figs. 1, 2 the central core A<3> is hollow and the ends of the limbs A are joined by metal webs a<2>. The crown of the central core is adapted to receive a pole piece a<4> which is formed with a concentric stub a<6>. The stub a<6> is turned so as to be a slack fit in the hole a<1> of the central core. A ring as constituting the outer pole piece is turned so that it is a press fit in the opening a<3>. To complete the magnet, the ring a<5> is pressed into place, the extension a<4> is loosely fitted in the hole a<1> and a spacing tube of dimensions corresponding to the gap is placed between the pole pieces. The block is then placed upside down on a rigid surface, a tool is inserted through the open end of the hole a<1> and a blow given to expand the stub a<6>. The ring a<5> and the pole piece a<4> are formed with a cross section diminishing towards the air gap in order to increase the flux density, and the ring a<5> lies in the plane of the adjacent ends of the limbs A and the webs a<2> so that no abrupt change takes place in the direction of the flux lines. The weight of soft iron used is about 10 per cent of that of the magnet steel. Instead of fitting separate pole pieces, a single member of soft iron may be inserted and the air gap cut therein subsequently. In the case of a magnet having a single loop-like limb, the metal of the limb at the crown completely surrounds the pole pieces. The fitting of the pole pieces takes place after machining and hardening the block and prior to the magnetizing operation. The Provisional Specification describes a construction in which the inner pole piece consists of a ring surrounding the central core, and also refers to Specification 340,206.
Patent GB-715255-A (GB)
Title: Improvements in or relating to the production of metallic oxides
Inventor: KRAUS PHILIP BERKELEY
IPC: C01G23/07
Filed: 1952-10-13
Abstract: Metal oxide scale is removed from the internal surfaces of equipment on which it has been deposited in the course of a vapour phase oxidation of a metal halide by introducing a gaseous chlorinating and reducing agent into the equipment to effect rechlorination of the oxide scale and its removal in gaseous form. The invention is applicable to oxide scales of titanium, iron, zirconium aluminium, vanadium, chromium, zinc and tungsten.  The preferred chlorinating and reducing agent is a mixture of chlorine and carbon monoxide, but phosgene, carbon tetrachloride, hexachloroethane, chloroform, a mixture of chlorine with sulphur or sulphur monchloride or chlorine having suspended therein a finely divided solid carbonaceous reducing agent such as carbon, coke or charcoal may be used at temperatures ranging from 800-1350 DEG C.  The oxidation of the halide, effected with air, steam, oxygen, or ozone, is discontinued when oxide scale builds up and the chlorinating and reducing gases are then introduced, preferably preheated.  The halide formed is separated from the effluent gases and reused.
Patent GB-1016432-A (GB)
Title: A metal panel having a noise-reducing material adhered thereto
Inventor: CHEES GEOFFREY CHRISTOPHER NIG
IPC: G10K11/168
Filed: 1961-07-14
Abstract: 1,016,432. Laminates. REVERTEX Ltd. July 5, 1962 [July 14, 1961], No. 25667/61. Heading B5N. A laminate comprises a metal panel and a noise-reducing material adhered thereto to damp vibrations thereof and reduce noise passing therethrough wherein the material comprises a layer of flexible foamed noiseabsorbing material the thickness of which is related to the noise absorbency desired, and a layer of vibration damping material, the nominal thickness of which is from ¢ to equal that of the metal panel, which comprises (1) an acrylic resin, butyl rubber, a polyvinyl acetate resin, a vinyl acetate copolymer resin, or a resin selected from the group consisting of cumarone, indene, cumarone-indene, styrene-indene resins, resins derived from homologues of the monomeric resins of the group, mixtures of the resins of the group, and one or more resins of the group in admixture with a bituminous material; and (2) a filler material. The noise-absorbing material may be a foamed polyurethane or a foamed rubber layer. The vibration damping material may contain an organic or mineral filler material, e.g. clay, mica or slate powder, wood flour or cork, or a flaky material such as mica or vermiculite. A layer of pressure-sensitive adhesive, e.g. a rubber-based adhesive containing a resinous tackifier, may be present on the outside of the layer of vibration damping material. The material may be in the form of a pad or a roll, the pressure-sensitive adhesive layer, if present, being covered by a paper coated with a release agent. The vibration damping material may be sprayed or otherwise applied directly on to the foamed layer.
Patent GB-242769-A (GB)
Title: Improvements in or relating to lubricating systems for internal combustion engines
IPC: F01M1/06
Filed: 1924-10-28
Abstract: 242,769. Invernairn (W. Beardmore), Lord, and Chorlton, A. E. L. Oct. 28, 1924. Oil, catching, retaining, and removing.-In a' lubricating system for internal-combustion engines employing crank-case compression, self-adjusting metal packing-rings or segments are arranged at the ends of the bearing to prevent leakage of lubricant. Lubricant supplied to the bearing between a gudgeon pin A and the strap B of a connecting-rod C through a central passage C<1> in the rod and a passage B<1> in the strap rollects in annular chambers D at the ends of the strap and returns to a collecting device in the crank case through passages D<1> and a passage C<2> surrounding the passage C<1>. Escape of oil from the sides of the chambers D is prevented by split metal packing-rings E pressed against the pin A by springs E, the rings and springs being arranged within annular cover-plates E<3> bolted to the strap. Holes E<4> permit oil collecting behind the rings E to pass into the chambers D. Specifications 224,581 and 231,587 are referred to.
Patent GB-968008-A (GB)
Title: An electronic distance measuring device
Inventor: FROGGATT DENNIS GORDON
IPC: H03K21/00
Filed: 1962-07-05
Abstract: 968,008. Odometers. S. SMITH & SONS (ENGLAND) Ltd. July 17, 1963 [July 5, 1962], No. 25863/62. Heading G1K. [Also in Division G4] An electronic odometer comprises an n-stage (n= 11 say) binary divider receiving pulses from a tachometer generator on a vehicle and set to apply one pulse to an electro-mechanical distance counter upon receipt of every M pulses corresponding to a standard unit of distance (say <1>/10 of a mile), M being less than 2<n>.
Patent GB-1534025-A (GB)
Title: Focus control apparatus
IPC: H04N5/85
Filed: 1976-06-22
Abstract: 1534025 Automatic control of focus of a light beam SONY CORP 22 June 1976 25907/76 Heading G3N A focus control system for use with an optical record carrier includes means for monitoring the distance of a reflective surface of the record from an object lens, a light source and a light path including a movable mirror whose position is moved in response to the monitored distance to keep the light beam in focus on the record. In the arrangement shown the capacitance between a recording surface 4 and fixed electrode 16 determines the output frequency of oscillator 15. A voltage derived from the output of the oscillator is compared in comparator 19 with a reference frequency voltage and the output signal used to energize coil 6 of the movable mirror assembly 5 and thus change the distance between lens 9 and mirror 7. A light source, which may be a laser, produces a beam of light  which is reflected by semi-transparent mirror 11 through lens 9 on to mirror 7 to be reflected back through lens 9, mirrors 11, 12, 13 and lens 8 on to the reflective surface of the record. The reflected light is detected by detector 14 to produce an electric signal corresponding to the recorded signal. When the arrangement is used for recording a signal a modulating cell is included in the light path.
Patent GB-945235-A (GB)
Title: A walking aid
IPC: A61H3/00
Filed: 1962-07-06
Abstract: 945,235. Walking aids. A. THOMAS. Nov. 9, 1962 [July 6, 1962], No. 25934/62. Heading A6M. A walking aid consists of two members a hinged together at two upstanding sides so as to be folded together and opened to a triangular position in plan. A link member h, Fig. 6a, may be provided to fix the angle of opening or an adjustable stop screw b7, Fig. 9, may be provided.
Patent GB-737796-A (GB)
Title: A process for the manufacture of polyisobutylene articles of high elasticity
IPC: C08K3/36
Filed: 1952-10-16
Abstract: Polyisobutylene articles, e.g. foils, tubes or ribbons of high elasticity, are obtained by incorporating in polyisobutylene one or more finely-divided oxides which have been produced from volatile halides of the metals or metalloids of the 3rd to 6th and the Iron Periodic groups, by thermal decomposition in the vapour state by oxidizing or hydrolysing agents; the composition is then shaped and stretched beyond the elastic limit.  Silicon, titanium, zirconium, aluminium and iron oxides are mentioned and the articles may be after-treated by a water-repellant agent such as toluylene diisocyanate.  Pigments and fillers may be added, and the products used for casing cables.  Specification 695,276 is referred to.
Patent GB-645787-A (GB)
Title: Improvements in or relating to packing boxes and the like
Inventor: APPLETON GEORGE
IPC: B65D43/12
Filed: 1948-10-05
Abstract: 645,787. Fastenings for boxes. KODAK, Ltd. Oct. 5,1948, No. 26005. [Class 44] [Also in Group XVII] The lid 3 of a box has projections 6 on opposite sides, those on one side engaging grooves below the edge of a box wall and those on the other side being held in recesses 19 in the top edge of the opposite wall by a slidable plate 21 kept in position by a spring biassed detent 24. To remove the lid, the detent 24 is depressed and the plate slid back on retaining pins 23 in slots 22, to release the projections 6.
Patent GB-1523665-A (GB)
Title: Bearing materials
IPC: C22C13/00
Filed: 1976-06-23
Abstract: The invention relates to an alloy for lining bearings as a variation of the known white metal. The alloy consists mainly of tin, but contains from 0.001 to 0.5% by weight of chromium and from 0.005 to 0.5% by weight of cobalt. The microstructure is good, and the alloy can be bonded to a steel base and is robust and ductile.
Patent GB-730942-A (GB)
Title: Improvements in magnet pole indicators
IPC: G01R19/14
Filed: 1953-09-21
Abstract: 730,942. Magnetic tests. DEUTSCHE EDELSTAHLWERKE AKT.-GES. Sept. 21, 1953 [Sept. 23, 1952], No. 26011/53. Class 37. A device for indicating the polarity of a magnetic pole comprises a permanent magnet disc 3 of high coercivity material, magnetized diametrically with the poles suitably marked N and S, and mounted for axial rotation between two brass plates 2 secured to a non-magnetic handle 1. When the pointed end 5 of the device is directed to the magnetic pole to be tested, the disc rotates to indicate the polarity in a window 4.
Patent GB-1008169-A (GB)
Title: Metallized azo dyestuffs
IPC: C09B45/20
Filed: 1963-07-01
Abstract: The invention comprisds metallized dyes derived from a monoaxoic compound of the formula <FORM:1008169/C4-C5/1> wherein R is an alkyl radical having 1 to 4 carbon atoms.  The metallized dyes may be prepared by treating the corresponding metal free dye with a metallizing agent, e.g. cobalt sulphate, chloride or acetate, in the presence of a mixture comprising urea and dimethyl formamide or ethylene glycol preferably in the anhydrous state and at a temperature from 100 DEG  to 140 DEG  C. Alternatively the metallization can be carried out in aqueous phase in the presence of a cobalt salt or complexes of organic hydroxy acids.  The examples relate to the preparation of cobalt and chromium complexes of dyes of the above formula in which R is an ethyl radical.
Patent GB-344367-A (GB)
Title: Process and apparatus for cracking of hydrocarbon mixtures
Filed: 1929-08-27
Abstract: <PICT:0344367/III/1> Fractions boiling below 300 DEG  C. are removed from oils before the latter are cracked under pressure.  The crude oil supplied by a line 21 is delivered by a pump 1 to the top of a dephlegmator 2, where the fractions boiling below 300 DEG  C. are vapourized by contact with the hot vapours from an evaporator 7.  The fractions boiling above 300 DEG  C. collect in a tank 3 and are drawn through lines 25, 26, 26a by a pump 4 to a pair of cracking coils 5, 5a from which the cracked products pass through a cooling coil 6 to an evaporator 7 where evaporation is aided by a steam coil 43. The uncondensed vapours from the dephlegmator 2 pass by a line 31 to a second dephlegmator 9 where they are washed with presdistillate supplied from a tank 11.  The vapours from the column 9 are condensed in a condenser 10 and pass to the tank 11. The condensate from the column 9 is collected in a receiver 13 and evacuated through a line 40, the residue from the evaporator being evacuated through a line 29.  Part of the crude oil may be passed through a line 42 direct to the coil 5a.
Patent GB-1389110-A (GB)
Title: Pumps and operating mechanisms therefor
IPC: F04B49/06
Filed: 1972-06-06
Abstract: 1389110 Reciprocating pumps BINKS MFG CO 6 June 1972 [7 June 1971 28 Sept 1971] 26231/72 Heading F1A [Also in Division H1] A pump for delivering paint at high-pressure to an airless spray gun comprises a double-acting bucket piston 88 reciprocated by a crank 54 driven by an electric motor 32 through reduction gearing 42-50, a pressure responsive switch being subjected to the pump delivery pressure to control motor 32 to maintain a predetermined, adjustable delivery pressure. The pump and motor assembly is mounted on a wheeled chassis 10 with an extendable handle 31. Crank 54 is connected to piston 88 via a rod guide 62. Packings 102, 104 surround the piston and pistonrod 86 respectively, and are adjustable by nuts 103, 105. Paint is drawn from a container into cylinder 71, via a filter (74), Fig.3 (not shown), and inlet valve 78, and is discharged via piston valve 96 piston outlets 90 and outlet 92. In one switch embodiment, Fig.5 (not shown), a chamber connected to the outlet 92 incorporates a filter and a connection for a spray gun, and also communicates with a cylinder housing a piston connected by a rod with an axially adjustable end member to a micro-switch, the end member being adjustable manually to set the delivery pressure at which the switch will be opened, the switch being biased closed. A manually-controlled switch is connected in series with the pressure-controlled switch. In another switch embodiment, Fig.8 (not shown), (see Division H1), for reactive materials, e.g. urethane foam, the pumped liquid passes through a chamber in which a diaphragm closing the end of a Bourdon tube is exposed, the Bourdon tube acting to close a micro-switch when the delivery pressure falls and to permit opening of the switch under its bias when the pressure rises above a predetermined level. The switch is pivotably mounted and manually adjustable in relation to the Bourdon tube to set the delivery pressure. Two pumps may be driven by a common motor to provide the same or different outputs, Figs. 6 and 7 (not shown).
Patent GB-461546-A (GB)
Title: Improvements in and relating to the arrangement of boxes and like articles for insertion into shells, and other like purposes
IPC: B65B35/40
Filed: 1936-09-28
Abstract: 461,546. Endless - belt conveyers. FAIRWEATHER, H. G. C. (Aktiebolaget Siefvert & Fornander) Sept. 28, 1936, No. 26284. [Class 78 (i)] [Also in Group XVII] Articles such as the inner boxes of slide and shell assemblies are assembled and arranged so that a number of them may be simultaneously inserted into their respective shells with a relatively slow movement. A row of filled match boxes &c. 1 .. 3 are advanced in the direction of the arrow x to positions 11 .. 13 on an intermittently movable conveyer 7 having series 8 .. 10, 8<1>. . 10<1>. of ribs on the surface. The number of ribs in each series is equal to the nuinber of boxes fed forward at a time, and the height is less than the height of the boxes. A stop, arranged in steps 14, 15, is arranged to engage the tops of the boxes when the conveyer resumes its intermittent movement, with the result that the boxes are moved to positions 21 .. 23. During the next pause, plungers 16, 17 align the boxes at positions 22, 23 with that at position 21. After an intermediate step, the boxes arrive in front of plungers 18 .. 20 for insertion into shells 4.. 6. In a modified construction, a plunger having a number of contact faces in stepwise arrangements effects the change from positions 11 .. 13 to positions 21..23.