baber/WOPTO huggingface dataset:
Patent GB-1018571-A (GB)
Title: Improvements in or relating to an installation for drying and burning sewage sludge and ground refuse or the like
IPC: F23G5/00
Filed: 1962-08-14
Abstract: 1,018,571. Refuse burning furnaces, drying apparatus. HERMANN SEILER Ltd. Aug. 14, 1962 [Jan. 10, 1962], No. 31087/62. Headings F4B and F4G. Sewage sludge or ground refuse is dried in a rotary drum comprising a number of coaxial cylinders through which the material passes in a serpentine path in contact with combustion gases from a furnace in which the material is burnt. Sewage sludge is dried, fine material is separated and either separately disposed of, or mixed with incoming sewage sludge before drying. The dried sludge is fed to the furnace by a screw, and the hot gases, after passing through the drier, are delivered through separators and washing apparatus to the atmosphere. Ground refuse may be mixed with the sludge before it passes to the drier, or waste oil may be mixed with the dried material fed to furnace. The outer drier drum has inwardly directed lifter blades, while the inner drums have saw-tooth section grooves extending longitudinally, Fig. 3. The hot gases and material enter the inner cylinder, flow in the reverse direction between the inner and middle cylinders, and are discharged from the outer cylinder.
Patent GB-244467-A (GB)
Title: Means for determining the rate or frequency of rotation or of oscillation of a moving part
IPC: G01P3/40
Filed: 1925-12-09
Abstract: 244,467. Guillet, A. V. J., and Bertrand, A. Dec. 10, 1924, (Convention date]. Comparison speed-indicators.-An electricallyopetated tuning fork motor is applied to the determination of the frequencies of rotation or of oscillation of moving parts. Fig. 1 shows the constant-speed device arranged to drive the apertured disc 5 of a stroboscope. A tuning-fork 1 has a bar 10 adapted to rotate a toothed disc 2 by pawls 11. The spindle 3 of the disc 2 drives the disc 5 through gear and a clutch. The frequency of the tuning-fork may be varied by adjustable members 7, 8. The disc 5 has several circular series of holes at different radial distances, and observation is made through a tube with slit radially arranged which can be brought opposite the required series of holes. A method of making the toothed disc 2 is described, in which a second tuning fork motor of the same type is employed as an auxiliary motor to drive the blank of the disc 2 in front of the claw 11 which traces the necessary curve to which the teeth of disc 2 are cut. For observing sound vibrations the disc 5 may be arranged so that the holes can be employed as in a siren. Instead of the disc 5 a small alternator may be driven and the current observed in a telephone; or a disc may be driven having a number of contact stops interposed in ,the circuit of a telephone; or currents generated may be sent through an auxiliary transformer through a double switch with or without means for varying its phase relation to the disc.
Patent GB-647580-A (GB)
Title: Periodic and automatic electric motor reversing circuit
IPC: G05D3/14
Filed: 1945-11-19
Abstract: 647,580. Control of D.C. motors. AMALGAMATED WIRELESS (AUSTRALASIA), Ltd. Nov. 19, 1945, No. 31092. Convention date, Nov. 18, 1944. [Class 38(iii)] A continuously and automatically operating motor reversing arrangement comprises a reversible D.C. motor, rectifier means controlled by an alternating potential for driving from a source of alternating potential a direct energizing potential for said motor, means for periodically and automatically reversing the phase of the alternating controlling potential applied to the rectifier for reversing the polarity of said energizing potential, and means for adjustably controlling the number of revolutions through which the rotor of said motor moves in either direction. The armature of a separately-excited motor 4 is, energized from a polarity-reversing unit 9. This unit may comprise, for example, two grid-controlled half-wave rectifier valves arranged for independent operation and having a common load circuit. Alternating potentials of opposite phase are applied to the anodes and alternating control potentials are applied to the grids in phase with one of the anode-potentials. By reversing the phase of the control potentials one of the rectifiers is selectively operated to energize the common load circuit in a given direction. Alternating control potentials for the unit 9 is derived from the motor-driven arm 10 of a potentiometer 7 and the centre tap 12 of a secondary winding 51 of a transformer, across which the potentiometer is connected. A transformer secondary winding S2 is connected in the load from the tap 12 to the unit 9. When a voltage is introduced through the winding S2, the motor will position the arm 10 so that its potential will equal that of the tap 12, the distance the arm moves being controlled by a resistor R2. A reversal of the phase of the voltage derived from the winding S2, by means of relay contacts B2 and B3, effects a reversal of motor-rotation. When the motor is at rest a relay C, which is energized by the output of the unit 9, closes a contact to energize a relay B thereby changing over contacts B2 and B3 and reversing the motor. The application of voltage to the motor armature again - operates the relay C to place relays A and B in series. When the motor again comes to rest the relay C is opened to operate the relay A and release the relay B thus changing contacts B2 and B3 to the original positions. Further operation of the relay C releases the relay A.
Patent GB-425135-A (GB)
Title: Improvements in babies' napkins
IPC: A61F13/15
Filed: 1933-11-08
Abstract: 425,135. Babies' napkins. RAVEN, R. F., and RAYNOR, H. A., 52, High Pavement, Nottingham. Nov. 8, 1933, No. 31108. Drawings to Specification. [Class 141] Babies' napkins are made of fabric in which elastic threads are incorporated at spaced intervals instead of or in addition to the usual textile threads, so that respiratory and other motions of the body are unimpeded. The fabrics may be woven or knitted ; in the latter case, the elastic threads are laid in but not looped. A tubular seamless knitted fabric may be cut into lengths and the edges seamed. Tuck rib fabrics are preferred. Specification 370,761 is referred to.
Patent GB-1241010-A (GB)
Title: A tunnel furnace having a reciprocable conveyor
Inventor: CONE CARROLL
IPC: F27B9/20
Filed: 1968-10-14
Abstract: 1,241,010. Tunnel furnaces. MIDLAND ROSS CORP. 14 Oct., 1968 [26 Feb., 1968], No. 31176/70. Divided out of 1,241,009. Heading F4B. The subject-matter of this Specification is identical with that of Specification 1,241,009 but the claims relate to a tunnel furnace having a reciprocable conveyer.
Patent GB-1495140-A (GB)
Title: Drawing instrument
IPC: B43L9/00
Filed: 1974-11-26
Abstract: 1495140 Writing appliances TRIMAN Ltd 26 Nov 1974 31238/77 Divided out of 1494748 Heading B6P A compass includes a guide member 34 with an aperture for rotatably mounting a pivot 40, a slot 32 in which a cursor 30 slides, two locating apertures 38a, 38b for receiving the writing ends of a writing implement and a locking member 46. The cursor also has pointers 56, 58 and 60, 62 associated with the apertures 38a, 38b respectively which indicate on scales on the guide member 34 the radial setting of the compass. The locking member 46 is attached to a bolt 36 engaging a threaded aperture in the cursor 30 and having an extension 48 which fits under longitudinal ribs on the slot 32 so that when tightened the cursor is held against the member 34.
Patent GB-760394-A (GB)
Title: Rollers for furnishing antistatic agents in the processing of textile or other materials
Inventor: MEDLEY JOHN ALBERT
IPC: D06B23/02
Filed: 1952-12-11
Abstract: 760,394. Rollers. WOOL INDUSTRIES RESEARCH ASSOCIATION. Jan. 6, 1954 [Dec. 11, 1952], No. 31355/52. Class 42 (2). For applying anti-static agent to material, particularly textile material, being processed around or between a roller or rollers, a roller C of sintered metal, e.g. iron or bronze, with cast iron ends E is used. The sintered metal is impregnated with anti-static agent and maintains by capillary action a thin surface film of the agent. The supply of agent to the sintered metal is maintained by an internal reservoir R tightly packed with cotton wool W impregnated with agent supplied through an orifice O. The agent may be an ethylene oxide condensate or a solution thereof in a textile processing oil.
Patent GB-1395962-A (GB)
Title: Pipes of synthetic plastics material and apparatus for producing same
IPC: B29C48/32
Filed: 1972-07-05
Abstract: 1395962 Extruding partitioned plastics tubes W HEGLER 5 July 1972 [31 July 1971] 31517/72 Heading B5A [Also in Divisions F2 and C1] A plastics tube is extruded having an integral partitioning wall means which extends across the tube interior between the tube wall and follows a helical path axially of the tube, to divide all of the bore of the tube into separate helical passages. The tube wall may be helically corrugated, and the partitioning wall means may be of the hand 24 shown in Fig. 3, dividing the tube diametrically, may be of the opposite hand (25), Fig. 4 (not shown), dividing the tube into three equal segments, or may be of alternating hand 26 and divide the tube into four segments as shown in Fig. 5, The tubes may be coiled around a cylinder which is rotated to scoop air and effluent or sewage through the tube whilst agitated for biological treatment in contact with a biological "lawn" which develops inside the tube, and which treatment is enhanced by additional agitation provided by the tube corrugations. Alternatively, the effluent may be passed through bundles of uncoiled tubes by gravity, or pressure. The tubes may alternatively be used for the conveyance of solid suspensions without settlement of the solids. The tube is extruded from an orifice, Fig. 1 defined between a stationary external die 1, and a mandrel 2 which rotates to define the helical path of a partition wall 16 which is formed by slots 13 extending radially inwardly of the mandrel 2 and to which plastics material is delivered by upstream mandrel grooves 14. The extruding tube is engaged between moving opposed chains of co-operating mould halves 17 which form corrugations, upon application of vacuum via mould passages 21 communicating with stationary vacuum sources 23, the formation of the corrugations being facilitated by communication of the tube interior with atmosphere, by passages 18 through the mandrel 1. The mandrel 1 is mounted for rotation within stationary spider 10 to which it is sealed by a flexibly deformable sleeve 12, urged against the mandrel by the pressure of the plastics 8 within the die head. The 1 is rotated by external sprockets 6 the drive of which is transmitted, by chains passing through the spider arms, to mandrel sprockets 4 housed within a spider cavity containing lubricant and in which a bearing 3 for the mandrel 4 is housed. The mandrel air passages 18 communicate with atmosphere through the spider arms, via an outlet 19 from the mandrel which is located above the level of lubricant 11 in the cavity and to which the ingress of lubricant is prevented by a surrounding drip shield.
Patent GB-1009480-A (GB)
Title: Dentifrice compositions
Inventor: HOLLIDAY WILLIAM MAXWELL
IPC: A61Q11/00
Filed: 1963-08-09
Abstract: Dentifrice compositions comprise an enamel-solubility-reducing material comprising:  (a) a water-soluble fluoride salt providing at least 25 p.p.m. of the dentrifrice of fluoride ions, the total amount of ionized and anionized fluorine not exceeding 4000 p.p.m. p  (b) Stannous tin in the form of a water-soluble salt providing a total content of stannous tin in solution of from 5000 to 15 000 p.p.m. (c) a water-soluble source of six-carbon aldonate groups capable of forming water-soluble chemical complexes with stannous tin, the molar ratio of aldenate-groups to stannous tin being in the range 1:1 to 3:1, the molar ratio of stannous tin to fluoride ions being greater than 1:1 and the dentifrice having a pH of from 5-7 when measured by a specified procedure.  Specified fluoride salts are stannous, sodium and potassium fluorides (Prepared), indium, palladium, ferrous and lithium fluorides and water soluble complex salts e.g. fluo-silicates, -zirconates, -stannites, -borates and -titanates. Specified stannous salts are aldonates and stannous fluoride (preferred), stannous mixed halides, and stannous sulphate.  Suitable aldonates are the gluconate group, i.e. such compounds as gluconic acid, gluconates and glucono-lactone and other six-carbon aldonates of the D and L series.  The dentifrices may contain conventional abrasives especially condensed phosphates, forming agents, thickeners, flavours, colours and humectants.
Patent GB-848481-A (GB)
Title: Improvements in and relating to the manufacture of facing bricks, blocks, tiles and like articles
IPC: B28B11/06
Filed: 1957-10-10
Abstract: 848,481. Applying facing materials to bricks &C. LONDON BRICK CO. Ltd., and HERSEE, E. D. Oct. 8, 1958 [Oct. 10, 1957], No. 31655/57. Class 87(2). Facing material in subdivided or comminuted form is discharged against bricks, blocks, tiles or like articles in an unfired condition by injector action employing a nozzle 25 producing a stream of compressed air into which the facing material is introduced after having first been deflected laterally from its initial path and to one side of the nozzle axis, the air and entrained material then being delivered by means of a blast nozzle 21 of converging form having convex sides in longitudinal cross-section. Material is fed at an angle of about 45 degrees to the passage 24 of the nozzle 25, by means of a hopper 29, into the inlet 22 where it meets a curved deflecting surface, the effect of which is to deflect the material towards the blast nozzle 21. The initial part 27 of the deflecting surface is flat and inclined at about 20 degrees to the air passage 24 and merges progressively into a concave portion 28 the lower part of which partially embraces the outlet of the air passage. The arrangement is such that there is some constriction of the material inlet 22 before it joins the region 26 adjacent the air passage outlet and the large end of the blast nozzle 21 whereby a Venturi effect is produced so that the facing material is discharged at high velocity. The facing material may comprise wet sand, ground clay, or wet ash while suitable dry materials are sand, granite chippings, furnace slag, and ground glass.
Patent GB-662050-A (GB)
Title: An improved method of the securing of electrical connecting tags to an insulating base
Inventor: CHILDS PERCY ARTHUR
IPC: H01R9/16
Filed: 1949-12-09
Abstract: 662,050. Riveted joints; caulking. STANDARD TELEPHONES & CABLES, Ltd. Dec. 9, 1949, No. 31675/49. Class 83 (iv). [Also in Group XXXVI] A small U-shaped terminal tag of wire or strip is secured in a hole 2 in an insulating base 1 by providing on the limbs 4, 5 at least one preformed projection 6, 7, 8, 9 at a distance equal to the depth of the hole, and after insertion therein expanding the base 3 of the tag to grip the base 1 at 10, 11. The hole 2 may be square so that a corresponding tag may be inserted in two positions and the hole edges may be chamfered at 16, 17 to receive the expansions 10, 11. A punch, Fig. 10, having projections 12, 13 may be employed to expand the tag base 3. When a tag is to be mounted at the edge of the base 1, one of the legs is bent to lie flush with the surface of the base, thereby constituting the preformed projection.
Patent GB-639962-A (GB)
Title: Process for the production of melamine
Filed: 1947-12-01
Abstract: Melamine is produced by heating urea in the absence of added ammonia or diluent gas, at a pressure of at least 400 atmos., to 385-550 DEG C., using a reaction time of from less than 3.5 down to 0.3 minutes. The process is otherwise as described in Specification 628,255 and the compounds referred to therein may be used instead of urea. Specifications 628,250 and 628,255 are referred to.
Patent GB-139141-A (GB)
Title: Improvements in or relating to kinematograph apparatus
IPC: G03B23/08
Filed: 1919-02-17
Abstract: 139,141. Portass, F. W., Portass, C., and Portass, S. M. Feb. 17, 1919. Kinematograph apparatus. - Relates to apparatus in which there is more than one series of pictures on the film arranged side by side, and the film is fed longitudinally over a carrier 4 which is moved laterally at the end of the ex. posure of each series. The feed of the film is of the pin type, and the pins 2 are reciprocated by the crank 5 and pushed into engagement with the perforations in the film by a cam 17 acting against a spring 14, The crank and cam actions are independent, and the lateral movement of the carrier 4 causes the cam 17 and crank 5 to change place, so that the feed may be in the reverse direction. This is effected either bv having two staggered cams or staggered cranks, or by arranging the cam with a projection 19 engaging a helical groove 18 on its shaft, so that it changes phase itself on shifting. Or again, either the cam shaft or the crank-shaft may be given a partial rotation. The pinion 22 driving the crown-wheel 23 of the shutter 21 moves in phase with the cam 17. The film normally covers slots 31, 32 in the carrier, but at the end of its travel, one of these is uncovered to allow a member 29 to pass through, thus permitting partial rotation of the shaft 28 and traverse of the carrier. In this case, another member would engage the film in the slot 32 and limit rotation of the shaft. Specification 138,992 is referred to.
Patent GB-200437-A (GB)
Title: Improvements in means for mounting the rollers of grinding or crushing machines
IPC: B02C4/36
Filed: 1922-11-21
Abstract: 200,437. Baker, Sons, & Perkins, Ltd., J., and Prescott, W. E. Nov. 21, 1922. Roller mills.-In a grinding or crushing machine having a screw eye or link threaded into a member of worm gear for adjusting a movable roller, means for separating the rollers without affecting their primary adjustment comprises a pin connecting a sliding bearing of the movable roller to the screw eye and having an eccentric portion journaled in a block slidable in an enlargement of the screw eye. As shown in a chocolate refiner, the roller 2 is mounted at each end in a block 3<a> which can be moved up and down in a vertical guide 4 by means of a screw-eye or link 7 which is mounted on a pin 6 passing through triangular lugs 5 on the block 3<a> and engages with interior threads in a worm-wheel 8 gearing with a worm 9 on a shaft 10 operated by means of a hand-wheel 11. The pin 6 is formed with an eccentric portion 12 carrying a sliding block 13 located in the enlarged end of the screw-eye 7. The pin 6 is rocked by an arm 14 connected by a link 15 to a handlever 16 mounted on a shaft 17. On raising the lever 16 to the upper position shown in Fig. 1, the bearing 3<a> and roller 2 are lifted away from the lower roller 3, the eccentric portion 12 of the pin 6 causing the block 13 to slide in the enlargement of the screw-eye 7 which remains stationary and vertical so that the adjustment set by the worm gear 8, 9 is not disturbed.
Patent GB-1111750-A (GB)
Title: Improvements relating to methods of coating the hull plating of ships and similar vertical surfaces,and apparatus therefor
Inventor: SHIRAISHI MINORU
IPC: B05B13/04
Filed: 1966-07-15
Abstract: 1,111,750. Coating apparatus. HITACHI SHIPBUILDING & ENGINEERING CO. Ltd. 15 July, 1966, No. 31925/66. Heading B2L. Apparatus for coating the hull plating of a ship or other vertical surface comprises a track 6 installed above the surface to be coated, a jib crane truck 7 arranged to travel on said track and a spraying device 16, 17, suspended from said jib crane in proximity to the surface, and is arranged so that the truck 7 is moved along said track and the spraying device is hoisted up and down in a manner to cause even spraying of said surface. The nozzle may be supported in guide means and may be reciprocable along said guide means by an endless band device driven by an electric motor and such guide means may be fixed horizontally or rotatable about its centre and lockable in any position.
Patent GB-943189-A (GB)
Title: Improvements in or relating to track installations
IPC: B60L13/00
Filed: 1962-08-20
Abstract: 943,189. Electric railways. J. HUBER. Aug. 20, 1962 [Sept. 5, 1961], No. 31963/62. Heading B7L. A track particularly for eleetrodynamic driving of motorless rail vehicles comprises rails 1, 1<SP>1</SP> electrically isolated connected by conductors 6, 6<SP>1</SP> to bus-bars 5, 51 held in spaced relationship at the track centre by the interposition of an insulator 8, the current being fed to the track via the connections 4, 4<SP>1</SP> on the current source 3. Swiss Specification 347,856 is referred to.
Patent GB-1272157-A (GB)
Title: Polyester stabilization
Inventor: BARKEY KENNETH THOMAS
IPC: C08K5/3437
Filed: 1970-07-02
Abstract: 1,272,157. Stabilizing linear polyesters. EASTMAN KODAK CO. 2 July, 1970 [2 July, 1969], No. 32049/70. Heading C3R. A linear polyester (e.g. polyethylene terephthalate) is stabilized against thermal degradation by adding flavanthrone. The flavanthrone may be added in an amount of from 50 to 5000 p.p.m., preferably 100 to 2000 p.p.m. The flavanthrone also acts as a U.V. absorbent.
Patent GB-777316-A (GB)
Title: Means for securing together the component parts of instrument casings
IPC: G01R11/04
Filed: 1955-11-09
Abstract: 777,316. Locking screws. SANGAMO WESTON, Ltd. Nov. 9, 1955 [Dec. 6, 1954], No. 32065/55. Class 89 (1). A screw 5, securing the case 3 to the base 1 of an electrical instrument, is locked by a plug 8 of non-metallic resilient material located in a bore extending at an angle to and cutting into the screwed bore 7 which receives the screw. The plug may be of rubber or nylon, and the screw-head may be covered, after tightening, with a layer 10 of wax or enamel to indicate whether or not tampering has occurred.
Patent GB-211928-A (GB)
Title: Improvements in or relating to chimney tops
IPC: F23L17/02
Filed: 1922-11-23
Abstract: 211,928. Copner, C. J. Nov. 23, 1922. Chimney tops.-A chimney top, of the kind provided with a depending conical ring having upstanding ribs forming upwardly converging wind channels, comprises a ring a inclined at an angle of 45‹ to the tubular part b which fits within the chimney shaft. The ring is provided with ribs d. A weather cap f is supported above the ring a by members g which may be integral with the lower part a, b or, as shown in Fig. 5, secured thereto by pins or bolts h. In some cases, an annular space, which serves for the reception of cement to secure the top to the stack A, is left between the parts a, b, while modifications are described in which this space is omitted, the ring a being either solid or formed as an upwardly inclined extension of a horizontal flange on the part b. Specification 12889/86 is referred to.
Patent GB-1338744-A (GB)
Title: Low pressure casting machine
IPC: B22D29/00
Filed: 1972-07-10
Abstract: 1338744 Casting machines KARL SCHMIDT GmbH 10 July 1972 [14 July 1971] 32225/72 Heading B3F A low pressure casting machine has a core 5 attached by a holder 6 to the end of a piston-rod 7 of an hydraulic cylinder 4 mounted on a head plate 3, a core cover-plate 10 provided with a central opening 11 through which the core 5 but not the casting 1 can pass, a plurality of impact columns 12 mounted on the plate 10 and traversed at their upper ends by pins 14, and a plurality of electromagnets 13 provided on the underside of the head plate 3, there being an electromagnet facing each of the columns 12. After the mould parts 2 have been retracted, the hydraulic cylinder 4 is actuated to raise the core 5 and thus the casting 1 and cover-plate 10 until the tops of the columns 12 strike the electromagnets 13. This halts the upward movement of the cover-plate 10 so that continued upward movement of the core 5 strips the casing therefrom. The electromagnets 13 hold the cover-plate 10 in position and prevent it from falling until the holder 6 abuts the pins 14. The electromagnets are then de-energized and the cover-plate 12 resting on the holder 6 moved gently down to the top of the mould ready for the next casting operation.