baber/WOPTO huggingface dataset:
Patent GB-1045341-A (GB)
Title: Improvements in or relating to sewage treatment
IPC: C02F1/52
Filed: 1963-04-01
Abstract: The process comprises adding a coagulant to sewage, adjusting the pH to obtain optimum coagulation, adding a conditioning agent to the sewage, passing the sewage seriatim through beds each comprising a layer of coarse filter media and a layer of fine filter media (flow direction from coarse to fine in each case) and then passing the sewage through a bed of activated carbon. From 5 to 300 p.p.m. (preferably from 150 to 278 p.p.m.) of alum may be added as coagulant. Alternative coagulants are copper, ferric or ferrous sulphate or ferric chloride.  The pH adjustment may be to between 4 and 6.5 (preferably between 4 and 5).  The conditioning agent is preferably a polyacrylamide, e.g. one having carboxylic groups substituted for a few of the amide groups; alternatively it may be a polysaccharide, an acrylamide polymer hydrolyte, a seaweed derivative, guar gum or an ammonium lignosulphonate derived from wood.  0.5 to 24 p.p.m. of conditioning agent may be added, but preferably it is added in two portions (each preferably of 0.6 to 12 p.p.m.), one before passage through each of two filter beds.ALSO:The process comprises adding a coagulant to the sewage, adjusting the pH to obtain optimium coagulation, adding a conditioning agent to the sewage, passing the sewage seriatim through beds each comprising a layer of coarse filter media and a layer of fine filter media, the beds being arranged so that the flow in each is in the direction from coarse to fine, and then passing the sewage through a bed of activated carbon.  The coagulant may be aluminium, copper, ferric or ferrous sulphate or ferric chloride.  The conditioning agent is preferably a polyacrylamide, e.g., one having carboxylic groups substituted for a few of the amide groups; alternatively it may be a polysaccharide, an acrylamide polymer hydrolyte, a seaweed derivative, guar gum or an ammonium lignosulphonate derived from wood.  Preferably the polyelectrolyte dosage is divided, a portion being added to the sewage just before entry into each bed. Preferably two beds are provided, each consisting of anthracite (coarse layer) and sand (fine layer).  Preferably two beds of activated carbon are provided.
Patent GB-559596-A (GB)
Title: Improvements in indicating devices using luminous paint
IPC: C09D5/22
Filed: 1942-09-12
Abstract: 559,596. Luminescent devices. SPANNER, E. F. Sept. 12, 1942, No. 12877. [Class 39 (i)] A luminous indicating device comprises a hardened self-tapping screw having a portion of the thread formed with a groove extending longitudinally thereof and having a shallow recess c in the head containing a layer d of luminous paint covered with a transparent layer e. The head b may be externally shaped as a triangle, square, or hexagon so that the screw may be turned into position without damaging the portion containing the luminous paint. Specification 137,160, [Class 89 (ii)], is referred to.
Patent GB-181918-A (GB)
Title: Improvements in and relating to self-lubricating bearings
IPC: F16C33/24
Filed: 1921-05-05
Abstract: 181,918. Rothermel, R. A. May 5, 1921. Material, special. -A self-lubricating bearing comprises an inner member a cf hard fibre which has been impregnated during the process of manufacture with a lubricant, such as by being boiled in a mixture of oil and graphite or other lubricant, and a steel shell b in which the inner member is inserted and the ends c of which are pressed over. Perforations d or serrations in the member a are filled with graphite and grease or other lubricant. The invention may be applied to thrust bearings. Specifications 144,493 and 148,733 are referred to.
Patent GB-717579-A (GB)
Title: Improvements in or relating to heavy oil internal combustion engines
IPC: F02B19/08
Filed: 1951-05-31
Abstract: 717,579. Direct-injection engines. BECKER, H. J., ADERS, E., BELLER, F., and BRANDENBURGER, O. May 31, 1951 [Sept. 6, 1949; Sept. 6, 1949], No. 12933/51. Class 7(3) In a heavy oil internal-combustion engine, shown in Figs. 1 .. 3 as an overhead valve engine, in which the fuel is injected during the compression stroke and is ignited by a sparking plug 6 towards the end of that stroke in a compression and combustion space externally of the cylinder bore, the space is subdivided into two chambers, namely an eddy or vortex chamber 4, shown as conical with a fuelinjector 5 at the apex, and a chamber 27 lying directly above the swept space of the cylinder, the chambers are interconnected by a passage 7 leading tangentially into each of the two chambers, and the sparking plug is arranged in the vortex chamber and opposite the mouth of the passage so as to be swept by the gases issuing from the passage. During the compression stroke of the piston 1 the air charge passes through the chamber 27 and passage 7 into the chamber 4 and fuel is injected at approximately the moment of maximum piston speed, the sparking plug being kept cool and free from droplets of fuel by the blast of air. After ignition, the flow is reversed- and the mixture passes into the space 27. At the same time, air from a pocket 3 above an inlet valve 9 flows into the working space 10. In Figs. 4 . . . 6 (not shown) the engine is a two-stroke, and scavenging air flows through the chamber 27 and passage to the outlet controlled by an exhaust valve 8. In Figs. 8 and 9 the compression and combustion space comprises a chamber 18 approximately elliptical in cross-section and a vortex chamber consisting of two semicylindrical parts 12, 13, the chambers being connected by a passage 22 and a fuelinjector 14 and sparking plug 15 being provided. The wall 16 is heated by the exhaust gases and assists in regulating the heat state of the chamber. The fuel is injected on to the wall 16 and is evaporated thereby. In Figs. 10 and 11 (not shown) the construction of Figs. 8 and 9 is applied to a two-stroke engine.
Patent GB-712004-A (GB)
Title: Improvements in and relating to shredding machines
Inventor: WEIGHAM WILLIAM REGINALD
IPC: C08B1/14
Filed: 1952-05-22
Abstract: 712,004. Shredders. COURTAULDS, Ltd. May 21, 1953 [May 22, 1952], No. 12962/52. Class 59 A shredder for alkali cellulose comprises a 'drum 2 the wall 10 of which is provided with shredding teeth 11. which co-operate with shredding teeth 13 provided on bars 12 parallel to the drum axis, the bars being mounted in slots of a screw conveyer 9 which moves the material from an inlet 16 to an outlet 17, the screw conveyer extending beyong the annular shredding region at the outlet end of the drum, and the annular shredding region merging into a space in a collecting chamber 3 not swept by the rotor so that the shredded material is freed from mechanical pressure prior to its discharge through the outlet. A baffle 22 rotated by the screw conveyer extends diametrically across the drum between two of the bars 12 and ensures that the material passes through the annular shredding region. The alkali cellulose sheets may be preliminarily shredded in a pre-breaker 15. The teeth 13 may be inclined so that they tend to move the material' in opposition to the screw conveyer, The flow of material may be observed through a window 18. The drum is surrounded by a jacket. 21 for heating or cooling fluid and the baffle 22 may be hollow to carry cooling or heating fluid. In a modification, Fig. 4 (not shown). the wall of the collecting chamber flares outwardly from the wall of the drum, and the screw conveyer extends to the end wall of the collecting chamber. In a further modification, Figs. 5 and 6 (not shown), the teeth on the drum extend to the end wall of the collecting chamber, the outlet from which is formed in the floor of the drum.
Patent GB-142673-A (GB)
Title: New or improved means for measuring electric currents
IPC: G01R1/20
Filed: 1919-05-23
Abstract: 142,673. Field, M. B. May 23, 1919. Current and energy meters.-A number of shunt resistances S are connected in parallel, or are intercalated in conductors in parallel, their potential terminals T being connected by leads of equal resistance to star points P<1>, P<2>, between which is connected an indicating, integrating, or recording milli-ammeter or milli-voltmeter. A potential difference proportional to the algebraic sum of the currents in the shunts is thus measured. An alternative system of connexions, ensuring electrical equality of the paths between the several potential terminals T and the star points P<1>, P<2>, is shown in Fig. 6. Each shunt resistance is preferably formed of two copper bars of rectangular section bent as shown in Fig. 4, and bolted together with intervening insulation. The high-resistance strips are held between these bars as shown, so that the current through each traverses equal lengths of copper bar. A series of such shunts may be nested together and connected in parallel so as to form a continuation of the busbars by interleaving the ends as shown in Fig. 3. In another arrangement, the shunts are supported independently of the circuit conductors by clamping between horizontal copper tubes supported in wall brackets.
Patent GB-676159-A (GB)
Title: Improvements relating to the supply of direct current to electrical apparatus
IPC: H02J7/34
Filed: 1950-05-24
Abstract: 676,159. Electricity supply. COMPAGNIE INDUSTRIELLE DES PILES ELECTRIQUES CIPEL. May 24, 1950 [June 28, 1949], No. 13079/50. Class 38 (iv). Depending on two or more sources.-A direct current load U is supplied from rectifiers fed by the source S a primary battery P of cells having an alkaline electrolyte and a primary battery N of cells with an electrolyte containing sal ammoniac being connected as shown. Such parallel batteries may be as claimed in Specification 658,361. A rectifier T may be interposed in circuit with the main battery N to prevent it being charged from the source. The voltage at the terminal of the main rectifier should be less than that of the battery N but greater than that of the peak battery P. When the external supply is rectified A.C. a filter R.F. is preferably included in circuit.
Patent GB-673672-A (GB)
Title: Spinning and twisting spindle structures
IPC: D01H7/06
Filed: 1949-05-17
Abstract: 673,672. Bobbins, mounting on spindles. TRIGGS, W. W. (Saco - Lowell Shops). May 17, 1949, No. 13089/49. Classes 120(ii) and 120(iii) A bobbin of the type having a driving cone connection 9 with the spindle at its upper, end, has a cylindrical wall 13 having a fine clearance with the spindle body 6 whereby, should the cone connection work loose due to vibration, friction between the spindle body and the wall 13 prevents the bobbin rising. The lower end of the bobbin fits a sleeve 7, carried on the spindle body, with clearance greater than that between the wall 13 and body 6. U.S.A. Specification 2,331,611 is referred to.
Patent GB-463223-A (GB)
Title: Improvements in or relating to fabricated structures
IPC: C22C9/04
Filed: 1936-05-08
Abstract: A welded structure such as a window frame or building front comprises a number of members composed of an alloy of 50-70 per cent of copper, 0,01-5 per cent of manganese, 0,01-0,25 per cent of silicon, and the balance zinc, with or without up to a total of 3 per cent of one or more of the metals tin, nickel, cadmium, aluminium, cobalt, and chromium, the metal of the welds being of substantially the same composition as the metal of the members.  The structure may be made by autogenous welding of the adjacent surfaces of the members.
Patent GB-496798-A (GB)
Title: Improvements in grills, toasters or like food preparing devices
IPC: A47J37/06
Filed: 1938-05-03
Abstract: 496,798. Cooking-apparatus. BURGESS, A. F. (Universal Button Fastening & Button Co.) May 3, 1938, No. 13166. [Class 28 (i)] A toaster, griller, or like food-preparing device comprises upper and lower hot-plates 10, 11, between and in contact with which the food is cooked. The plates are heated by a gas burner or other source of hot gases, and means are provided for guiding the gases into contact with the outer faces of the plates. The plates 10, 11 are each mounted in a housing, the housings being connected together by hinge pins 28 and slotted hinge members 27, which allow various thicknesses of foodstuffs to be accommodated between the plates. The device is placed over a burner, and a baffle plate 12, having an asbestos backing 4S, prevents the gases from impinging directly upon and overheating the bottom plate 11. The gases are directed to vertical side channels 14 formed by telescoping members on the two housings. The top plate 10 is formed from an aluminium sheet which is corrugated to form flat sections 19 and gas passages 15. The sections 19 provide the operative surface in contact with the food. The passages 15 are cut away along the middle line to allow the gases to escape to the outlet 17, the gases flowing up each side channel 14 and from the ends of the passages 15 to the central vents. The flat sections 19 are maintained in position by comb-like keeper plates 23 having downwardly directed portions 38 which project into channel members 32 connected to or forming parts of the lower plate 11, thus forming a seal to prevent gases from entering between the plates 10, 11. The sides of the plate 11 are flanged at 40, and the front and rear edges are upwardly flared at 42 to prevent the escape of grease,' batter, &c. The bottom of the plate 11 is reinforced by a sheet 44 having stiffening ribs 45, and an asbestos sheet 48 is interposed. The upper housing is lined with an asbestos sheet 49. One edge, preferably the front edge, of the plate 11 is provided with a lip or spout for the escape of grease, and a removable cup is positioned under the spout. For pancakes, waffles, &c., the spout is eliminated or closed and the plates are made of cast aluminium. The outlet 17 has gas outlets on its sides, and carries a bi-metallic temperature indicator 59. The upper housing is lifted about the pivot pins 28 by the handle 52 and stops 30 on the slotted hinge members 27 hold it in an upright position.
Patent GB-1452803-A (GB)
Title: Vehicle and track apparatus
IPC: B61B13/12
Filed: 1974-03-25
Abstract: 1452803 Track propulsion systems SI HANDLING SYSTEMS Inc 25 March 1974 13215/74 Heading B7L A vehicle 10 has wheels 28, 30, 32 and 34 adapted to ride on a track 12, 14; a drive wheel 66 adapted to contact drive shaft means 16 extending along the track and oscillatable about an upright axis, the oscillatory position of the drive wheel determining the speed of propulsion or state of rest of the vehicle; a control member 74 projecting forwardly of the vehicle and connected to the drive wheel 66 to effect its oscillation; and a speed control device 78 projecting rearwardly of the vehicle at the same height as the control member to co-operate with a like control member 92 of a like vehicle 94 and thus control the speed of the vehicle 94. Member 72 is connected to a second drive wheel 58 by a member 72 so that wheels 58 and 66 oscillate in unison when a cam follower 76 carried by the member 74 rides along a cam surface 80 on the device 78 or 96 of a foregoing vehicle to decelerate the vehicle 10, wheels 58 and 66 being spring biased towards their position for maximum speed of the vehicle.
Patent GB-235377-A (GB)
Title: Improvements in or relating to overall trousers
IPC: A41D13/02
Filed: 1924-05-30
Abstract: 235,377. Wardle, G. May 30, 1924. Overalls.- Overall trousers of the seatless type, especially ir.tended for motor cyclists, have a portion of the front below the waist band made as a flap a. One of the edges of the flap is permanently secured, and the other three edges are detachably secured by buttons, press-fasteners, metal-lacing as shown in Fig. 5, or other means. Specification 4218/06 is referred to.
Patent GB-543515-A (GB)
Title: Improvements in or relating to firing mechanism for automatic guns
IPC: F41A19/55
Filed: 1940-08-21
Abstract: 543,515. Automatic guns. VIALE, S. M. Aug. 21, 1940, No. 13308. [Class 92 (ii)] Pneumatic firing means is combined with a changefire mechanism. The change - fire mechanism may be as described in Specification 543,516, in which a member connected to the sear is engaged by noses on a spindle 24. The spindle is held in neutral position by a spring plunger 41 and has two arms 42, either of which may be engaged by a push-rod 50 pivoted at 49 to the piston 45 of a pneumatic cylinder 43. In the central position shown, the push-rod engages between, the two arms and locks the spindle 24 and prevents firing. The push-rod may be inclined to the right or left by a hand-adjusted pin 52, and then operates upon one or other of the arms 42 and rocks the spindle to the singleshot or full-automatic position when compressed air is admitted to the cylinder 43.
Patent GB-133182-A (GB)
IPC: G01P3/12
Abstract: 133,182. Cowey, L. E. Oct. 15, 1918. Speed-indicator transmission mechanism, for indicators particularly of the type described in Specification 109,160, comprises means whereby reciprocating movement derived from an engine &c. is converted to a steady rotary motion. A spring-retracted pawl member B, bearing a roller b acted on by the engine &c., engages spring ratchet teeth C which, together with stops c<3>, are carried on the interior of a drum c. To ensure engagement with the spring teeth, the stroke of the pawl is greater than the distance between the teeth, and to prevent backward movement, a fixed, non-return pawl J is carried by the casing A. A flat spiral spring D, one end of which is secured to a shaft e and the other to the interior of a casing c<1> fixed to the barrel c, drives the speed indicator the spring, together with the governor, serves to produce a steady rotary motion.
Patent GB-133276-A (GB)
IPC: A45C1/06
Abstract: 133,276. Cox, H. C. June 4, 1919. Card, season-ticket, stamp, and like cases.-A pocket wallet or case comprises a sheet 1 of material such as leather, to which is hinged a writing- tablet 7 adapted to be engaged by a clip 8 in such a manner as to hold in place Treasury notes projecting from a pocket 14. The lateral parts 2, 3 of the sheet 1 are adapted to be folded one over the other and to be secured together by pressstuds &c. 5. The part 2 carries stamp pockets 11 and a larger pocket 12 for holding a season ticket &c. The clip 8 may be provided with parts 9 for holding a pencil 10.
Patent GB-274427-A (GB)
Title: Improvements in or relating to the rollers of drawing machines for preparing worstedyarn or the like
IPC: D01H5/74
Filed: 1927-05-19
Abstract: 274,427. Gaier Ges., C. July 13, 1926, [Convention date]. Rollers and roller heads.-The cover 3 of the upper drawing-roller of machines for preparing worsted or the like is carried by a sleeve 2 detachably secured to an inner ring 4 supported on an axle by ball bearings 5 or by a single roller bearing. The roller is completely enclosed by end plates 7, 8, the plate 7 serving as an abutment for the sleeve which is secured by screws 9. The bearings 5 are spaced by a bush 6 and lubricated through a hole normally closed by a screw 12. The single roller bearing is lubricated through a similarly closed hole in the side of the ring 4. The sleeve 2 and the ring 4 may be coned to facilitate mounting and dismounting, securing screws for the sleeve being then dispensed with. Parchment may be used in addition to felt as a cover. Specifications 7643/03 and 237,482 are referred to.
Patent GB-1388570-A (GB)
Title: Manufacture of sheet form material
IPC: B29C70/06
Filed: 1972-03-22
Abstract: 1388570 Moulding reinforced foam sheets P B VIDAL 22 March 1972 [22 March 1971] 13469/72 Heading B5A Reinforced foam sheets are formed continuously feeding open-structural reinforcement downwardly through a mould having vertical moulding surfaces and introducing a curable, foamable material into the mould and foaming and curing it therein with the reinforcement embedded therein. As shown in Fig. 2, the reinforcement 23 is fed from reel 24<SP>1</SP> into the mould formed by endless belts 2-5 synchronuously driven by motor 6 and which are guided by supporting rollers 8, heated by elements 9 and adjustable for separation by thread system 10. Protective bands, e.g. of paper 11 may be fed from bobbins 12. Foam, e.g. phenolic resin, may be fed from beads 24 movable across the mould opening by holder 26 having a rack driven by pinion 27 rotated by motor 28. Panels 14 formed may be cut by circular saw (15, Fig. 1, not shown), and fed to store (16) by transporter 17. The reinforcement may comprise two sheets of meshed fibres (18, 19, Fig. 4, not shown), e.g. of nylon, metal, glass fibre &c. connected by filaments (22).
Patent GB-1318503-A (GB)
Title: Conveying worm injection-moulding machine reverse-flow preventers
IPC: B29C45/52
Filed: 1971-05-06
Abstract: 1318503 Injection moulding machines DESMA-WEBKE GmbH 6 May 1971 [7 July 1970] 13472/71 Heading B5A In an injection moulding machine having a non-return valve ring 11 on the head 12 of an axially reciprocable screw 13, the ring 11 and screw 13 are arranged to rotate at the same speed. As shown in Fig. 2 projections 17 on the screw head 12 engage in recesses 18 in the ring 11. The ring 11 co-operates with abutment faces 14, 15 on the screw head 12 and a detachable cap 16 respectively. Shallow spiral grooves 20 in the ring act as lubrication channels. The upper and lower parts of the figures show different positions of the valve ring 11.
Patent GB-562333-A (GB)
Title: Improvements in or relating to cabinet wringers
IPC: D06F45/14
Filed: 1942-09-25
Abstract: 562,333. Cabinet wringers. ACME WRINGERS, Ltd., TENNENT, J., and ROSS, D. C. (legal representatives of Burt, J. W.) Sept. 25, 1942, No. 13474. [Class 138 (ii)] A cabinet wringer, accommodating a wringer and a tub carried on a lever frame as described in Specification 537,066 has the upper front part 14 of the cabinet formed as a door on a horizontal hinge 15 at its lower edge and fitted near each side edge with inwardly-directed cam arms 16, 18 adapted to co-operate with the wringer and tub carrying lever frame 13 so that opening and closing of the door 14 raises and lowers the lever frame 13 and the carried wringer and tub. Stops 20 and 21 are provided for the upper and lower position,s of of the frame, which is hinged at 17 near the rear top edge of the cabinet where the cover 19 is hinged.
Patent GB-1447219-A (GB)
Title: Apparatus for the treatment of thin sheet with a corona discharge
IPC: H01T19/00
Filed: 1975-04-02
Abstract: 1447219 Discharge treatment of non-conductive foil SOFTAL ELEKTRONIK GmbH 2 April 1975 [27 April 1974] 13475/75 Heading H1X In apparatus for the treatment of a non- conductive foil or like thin sheet 3 by subjecting it to a corona discharge including two elongated electrodes 1 and 2 with a gap between them and means for passing the foil or like sheet 3 through the gap, electrode 1 is in the form of a profiled roller, the profile comprising a series of ridges 4 with troughs between them extending along the length of the electrode parallel to its axis. The ridges 4 form knife-edges so the electrode combines the advantages of a knife-edge electrode with those of the more robust roller electrode. Electrode 1 is driven by an electric motor 5 and electrode 2 has a coating 2a of dielectric material. The ridges 4 and troughs may terminate short of the ends of the roller and may be interrupted longitudinally at a plurality of locations (Fig. 4, not shown).
Patent GB-135021-A (GB)
IPC: A47H13/06
Abstract: 135,021. Lancaster, H. R. S. Dec. 23, 1918. Hooks, safety.-In hooks for attaching curtains or the like to curtain rings or the like, a hook a is passed through the curtain ring eyelet &c. and is then sprung into the retaining catch b, pins c, d being secured in the curtain &c. All the parts but the pin d, which is loose on the bar e of the hook, are formed from one piece of wire. One of the Provisional Specifications describes a hook formed from one piece of wire and constructed similarly to that described in the Complete Specification as regards the means for atta.chment to the ring eyelet, but with the pin attachment to the curtain dispensed with, a loop being provided at the base of the hook.