baber/WOPTO huggingface dataset:
Patent GB-1148324-A (GB)
Title: Improvements in regulating systems for pressure medium
IPC: F04B49/10
Filed: 1966-06-17
Abstract: 1,148,324. Fluid-pressure servomotor systems. ROBERT BOSCH G.m.b.H. June 17, 1966 [June 19, 1965], No.27172/66. Heading G3P. A control system for a variable displacement pump 10 maintains the product of the delivery and output pressure of the pump constant. As shown, a piston 14, 15 carries a spool 21 bearing on a balance lever 27 pivoted at 28 and supported by an adjustable spring 29. The piston also carries a web 31 which provides a pivot 32 for a right triangular member 33, the latter also engaging a fixed knife-edge 34. A plunger 36 abuts member 33 and passes through a sleeve 39 slidable in a bore 38. The point of engagement 35 of plunger 36 with member 33, knife-edge 34 and pivot 28 all lie on a common straight line. The output line 65 of the pump includes a restriction 66 the pressures across which are communicated to the control system via lines 64, 67. Downstream, i.e. outlet, pressure acts on the top on spool 21 via lines 67, 62, chamber 13' and line 22, thus the spool exerts a force F 2  on the lever 27 proportional to the outlet pressure. The moment arm h of this force is proportional to the square root of the distance m since the distance n remains constant. The distance m is proportional to the pressure across restriction 66, i.e. proportional to the square of the flow-rate, thus the distance h is proportional to the flow-rate. The moment F 2 , h is thus proportional to the required product and the latter is constant when lever 27 is in equilibrium. If the downstream pressure rises, e.g. due to speed increase of motor 11 or falling demand, spool 21 moves downwardly to vent chamber 13" and thereby allow piston 14, 15 to move to the right until spool 21 is returned to its neutral position by contact with the lever 27. The rocking of member 33 allows plunger 36 to fall under the action of pressure in chamber 37. Upstream pressure now acts via line 64, chamber 40, the gap between control edges 47', 48" on sleeve 39 and plunger 36 respectively, passages 49, 50 in plunger 36 and lines 53, 59 on servopiston 61 to cause the latter to reduce pump output by tilting the pump casing. The increased downstream pressure non acts via line 63 and chamber 41 on sleeve 39 to move the latter downwardly to lap control edges 47', 48". The system is returned to equilibrium when the moment exerted on lever 27 by the product of the lower flow-rate and the higher outlet pressure balances the moment exerted by spring 29. When the outlet pressure reaches a predetermined value it lifts a spool 54 and acts via line 59 on the servopiston 61 to move the pump to its zero-delivery position. Springs 29, 56 could be replaced by hydraulic loads. If desired, the servopiston could alternatively actuate a valve in line 65. In the embodiment of Fig.2, (not shown), the pressure difference acts on the lever (27) and the moment arm is proportional to the square of the outlet pressure; this system thus acts to maintain N<SP>2</SP> = P<SP>2</SP>, Q<SP>2</SP> = const, P being the pressure and Q the delivery.
Patent GB-326752-A (GB)
Title: Improvements relating to thermostatic means for controlling the opening and closing of air shutters of water-cooling radiators
IPC: F01P7/12
Filed: 1929-09-07
Abstract: 326,752. Smith & Sons (Motor Accessories), Ltd., S., and Eckford, F. G. Sept. 7, 1929. Thermostats. - A thermostatic device of the bellows type for controlling the air-admission shutters of motor-car and like radiators comprises a bellows member 1 surrounded by vapour or liquid medium in a casing 2 housed in a recess 3 in the radiator header 4, and a spring 12 within the bellows surrounding a thrust rod 8 connected by a lever 13 to the shutter rod 14. The spring bears at one end against the free end 5 of the bellows and at the other end is seated in a recessed member 9 screwed in the cover 6 of. the thermostat chamber, whereby the resistance to movement of the bellows due to rise of temperature may be adjusted.
Patent GB-1511077-A (GB)
Title: Purification of liquids
IPC: B03D1/14
Filed: 1976-06-30
Abstract: 1511077 Purifying liquids SAINT GOBAIN TECHNIQUES NOUVELLES 30 June 1976 [30 June 1975] 27236/76 Heading C1C Liquids are purified by a flotation process in which the liquid containing solid particles is brought into contact with a liquid containing fine bubbles in a first zone where the speed of liquid and its turbulence encourage anchoring of the bubbles on the particles of solid while preventing decantation and in which the separation of solid particles from the liquid is carried out in a second zone where the speed of the liquid and its turbulence are less than in the first zone, the liquid carrying the solid particles and the liquid containing fine bubbles executing a helicoidal ascending movement in the first zone.
Patent GB-752087-A (GB)
Title: A machine for loading series of articles to multi-tier transfer cars
IPC: B65G49/08
Filed: 1953-10-06
Abstract: 752,087. Endless elevators; step-by-step conveyers. BLYTHE, J. C., and CROOK, C. Oct. 22, 1954 [Oct. 6, 1953], No. 27385/53. Class 78 (1). An apparatus for loading brick-bearing pallets 5 onto the tines 48 of a truck 45, comprises a reciprocating conveyer 7a, and an endless elevating conveyer 22a which is operated intermittently, and in timed relation with conveyer 7, so that pairs of rests 25 are loaded and raised successively until a stack of predetermined height is formed, whereafter movement of the truck to a position in which tines 48 are located beneath the stacked pallets causes the rests 25 to lower and deposit the pallets on the tines. Return movement of the truck onto the turntable 51 causes the rests 25 to return into alignment with the pallet rests 6. The Specification describes a system of electrical switches for automatically effecting the above sequence of operation, and for pushing the extruded clay 2 through a wire cutter 4 onto the pallets when they are in position A. The conveyer 22a consists of a pair of endless chains 22, 23 (Fig. 2) supporting rests 25 and driven synchronously by a motor 26 through worm gearing 27-30. Starting of motor 26 is controlled by a switch 33 (Fig. 1) which is operated in timed relation with the movements of conveyer 7a, whilst stopping is effected at each half revolution of shaft 24 by the engagement of one of the cams 37a with a switch 35. These cams also operate a switch 36 which, when operated with the truck wheels 46 closing switch 38, effects reverse movement of the motor to cause the lowering of rests 25. A safety switch 41 immobilizes the whole apparatus in the event of a pallet being raised into engagement therewith. Step-by-step conveyers.-A pair of bars 7 are raised and lowered by rollers 8, 9, operated by a cam 15, and are reciprocated by a pusher 21 connected by a rod 20 with a crank 19 secured to the cam shaft 16.
Patent GB-737436-A (GB)
Title: An improved device for supporting written, typed or printed papers being read, and for marking the places reached by the reader
IPC: B41J29/15
Filed: 1953-10-07
Abstract: 737,436. Copy-holders. ADDINSELL, Ltd., H. Oct. 7, 1953 [Nov. 4, 1952], No. 27518/53. Class 146(1). [Also in Group XVI] A copy-holder comprises a stand having a substantially flat supporting surface, a marker directly manually movable over the surface, and controlling means located behind the surface and connected to opposite ends of the marker for maintaining the latter at right-angles across the surface, and the marker can be moved away from the surface for the insertion and removal of papers. Papers, notebooks, &c. are secured on an inclined support 1 of sheet metal by means of a spring clip member 5, Fig. 1, having grippers 5b and a finger piece 5d for manual release. In another form, Fig. 4, sheets 28 are secured in laterally staggered relationship by passing perforations therein over pegs 24b projecting from a strip, and placing a second perforated strip 24c thereover, the assembly then being inserted by means of end lugs 24e, either way up, into brackets 26 on the frame. A line indicator 8, Fig. 1, or 27, Fig. 4, is provided (see Group XVI).
Patent GB-176034-A (GB)
Title: Improvements relating to the treatment of cellulose acetate products
IPC: D06P5/22
Filed: 1920-09-28
Abstract: The partial or superficial saponification of cellulose acetate threads or fabrics by alkaline agents prior to or during dyeing is regulated or controlled by the addition of sodium acetate in concentrations up to 5 per cent.  Specification 169,741 is referred to.  The Provisional Specification does not limit the invention to the above-mentioned concentrations.ALSO:The partial or superficial saponification of cellulose acetate threads or fabrics by alkaline agents prior to or during dyeing is regulated or controlled by the addition of sodium acetate in concentrations up to 5 per cent. Specification 169,741 is referred to.  The Provisional Specification does not limit the invention to the above-mentioned concentrations.
Patent GB-400663-A (GB)
Title: Improvements in means for firing flares
IPC: F41A19/69
Filed: 1932-04-29
Abstract: 400,663. Electric switches. DRIGGS, L. L., Tippecanoe, Ohio, U.S.A. April 29, 1932, No. 27689. Convention date, Nov. 23, 1931. Divided on 395,126, [Group XXI]. [Class 38 (v).] Relates to electric supply systems for firing from aircraft flares of the kind containing an electrically ignited explosive charge for firing the flare, for example as described in Specification 395,126. According to the invention, separate firing switches for each flare are mechanically interlocked with a master switch so that a firing switch can only be closed when the master switch is in the "on" position. As shown in Fig. 1, the flare holders 4 are in a wing 3, and the switch casing 2 and the battery 19 are in the fuselage 1. These devices are shown diagrammatically on a larger scale in Fig. 2. The casing 2 contains a master switch 39, and a number of individual firing switches 9, 11, 13, 15, 17, 18, one for each flare A .. F. One terminal 38 of the main switch is connected to a terminal 36 of the battery 19, and the other terminal 26 of the master switch is connected to a dash light 24 and to the individual firing switches 9 .. 18, which are in turn connected to their respective flares A .. F. The return to the battery is by a common lead 21 and " earth connections 23, 6. The handle 40 of the master switch is connected to a sliding bar 41 provided with notches 42 which come opposite the handles 35 .. 32 of the switches 13 .. 18 only when the master switch is closed so that these switches 13 .. 18 cannot be operated until the master switch is closed. Moreover, the master switch being in series with each individual firing switch, no flare can be discharged until both the master switch and the corresponding individual firing switch is closed. The switches 9, 11 are made as shown in Fig. 4. The terminals 45, 8 can be bridged over by a transverse plate 44 pressed by a spring 47 ; but when the plate is turned by a handle 43 it snaps in the open position in a transverse slot 48.
Patent GB-1031640-A (GB)
Title: Improvements in or relating to the production of tubes
Inventor: HARDWICK JOHN GORDON
IPC: B29C53/60
Filed: 1963-07-12
Abstract: 1,031,640. Plastic tubes. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. July 1, 1964 [July 12, 1963], No. 27699/63. Headings F2G and F2P. [Also in Division B5] A method of making a bent tube of helically wound reinforced plastic consists in winding at least one layer of a filament impregnated with curable plastic material upon a straight, non- porous shell of deformable material, causing the shell to become non-rigid, bending the shell whilst maintaining sufficient internal fluid pressure to sustain its circular cross-section and curing the plastic after the shell has been fully bent whilst still maintaining the internal pressure. The shell may be of a rubber or of a thermoplastic material such as polyvinylchloride; the curable plastic a hot- or coldcuring epoxy resin through which the filament is passed immediately before winding. The filament comprises multi-strand glass rovings and is wound in three layers, the first two at 45 degrees and the last at 60 degrees to the axis of the polyvinyl-chloride tube. After winding, each end of the tube is fitted with a plug 3 clamped at 5 and a hot liquid at 90‹ C. and 40 1b. sq./inch pressure is passed through the bores 4. The plugs 3 support turning arms 6, 7 of the bending apparatus which is kept in position until final curing is complete.
Patent GB-755307-A (GB)
Title: Improvements in or relating to planographic printing materials
Inventor: NEWMAN DOUGLAS A
IPC: B41N3/03
Filed: 1954-09-24
Abstract: 755,307. Planographic printing surfaces. COLUMBIA RIBBON & CARBON MANU. FACTURING CO., Inc. Sept. 24, 1954, No. 27717/54. Class 100 (2). A process of providing a planographic printing surface on the face of a paper sheet having inherently insufficient wet strength and resistance to water-penetration for planographic printing on an offset printing machine comprises applying to one side of the sheet, from aqueous solution, a mixture of a hydrophilic colloid and a minor proportion of less hydrophilic polyvinyl alcohol, an insolubilizing agent for the colloid and a volatile inhibitor for the insolubilizing action of the agent on the colloid, the solution containing the hydrophilic colloid also containing 0-20 per cent of mineral filler, based on the dry weight of the coating obtained, and having a viscosity of 10-300 centipoises, and drying the coating thus obtained. The coating is particularly suitable for paper sheets not originally intended to form planographic plates. In a preferred example 1.9 parts by weight of sodium carboxymethyl cellulose and 0.7 parts by weight of polyvinyl alcohol constituting the hydrophilic colloids, 94.5 parts by weight of water, 2.5 parts by weight of glycerine, 1.0 part by weight of copper sulphate constituting the insolubilizer and 0.5 parts by weight of ammonia hydroxide as the inhibitor were applied as a single solution to a paper sheet having a high porosity and the sheet dried under infra lamps at 65‹ C. for two or three minutes. The polyvinyl alcohol is added in proportion not greater than one-third of the weight of the main hydrophilic colloid. Examples of suitable hydrophilic colloids which may be used are carboxymethyl cellulose compounds, starch, gum arabic, gum tragacanth, mesquite gum, larchgum, alginic acids and salts thereof, and alkali salts of dibasic acid styrene copolymers. Inert mineral fillers such as colloidal clay, barium sulphate and calcium carbonate may be used. Insolubilizers which may be used are mineral acids, e.g. hydrochloric acid, and salts and compounds of polyvalent metals, e.g. aluminium, ferric and copper sulphate. The image portions of the plate may be applied before or after coating and if desired the coating may be applied in two solutions, the second containing the insolubilizing agent. Application is effected by a manual spraying operation, or by means of a small coating machine. U.S.A. Specification 2,582,347 is referred to.
Patent GB-519445-A (GB)
Title: Improvements in and relating to filling machines
IPC: B67C3/04
Filed: 1938-09-23
Abstract: 519,445. Delivering measured quantities of liquid. AMERICAN CAN CO. Sept. 23, 1938, No. 27754. Convention date, Oct. 29, 1937. [Class 106 (v)] [Also in Group XVII] A machine for supplying milk or other liquid in measured quantities to cans or containers, e.g., of the type described in Specifications 470,098 and 470,174, [both in Group XVII], has a measuring element C that is movable vertically within the filling head B to receive and trap a quantity of milk in excess of a-predetermined charge and, after having returned the excess liquid to the filling head, to hold the charge for delivery to a can b by means of a nozzle 64. The invention is desc r i b e d in connection with a rotary - table machine comprising a tank A, Fig. 1, provided with a number of filling heads B and into which milk is fed through a strainer 57 and a port 52 under control of a float operated sleeve valve 55. Each filling head has a funnelshaped base 62-64, Fig. 5, with a port 65 for feeding the milk to the cans in a fanlike stream and contains a slidably mounted measuring element C that is supported by a shield 98 and moved vertically under control of an associated cam roller 107 and a stationary segmental cam 108. The stroke of the element C can be adjusted by means of screws 101, 111. When the member C is raised the liquid enters through the bottom to be trapped during the subsequent descent of the member C, which is caused by the roller 107 falling off the cam 108, the excess liquid being ejected to the tank by outlets 96. The charge thus held is released for delivery by a rising cam b engaging a depending foot 81 and through connections 77, 73, 72 withdrawing a plunger valve 68 from the nozzle 64.
Patent GB-1316007-A (GB)
Title: Moulding foamed plastics
IPC: B29C45/26
Filed: 1971-06-14
Abstract: 1316007 Injection moulding foamed articles ICI AUSTRALIA Ltd 14 June 1971 [12 June 1970] 27764/71 Heading B5A [Also in Division C3] In an injection mould for the production of small tyres from foamed ethylene/vinyl acetate copolymer, the parting surfaces of the mould parts 10, 11 adjacent the mould cavity are substantially parallel to the direction of opening of the mould, this being effected by use of a tapered portion 14 fitting into a recess 15-the mould is also provided with a relief recess 19 opening from the parting line 12 of the mould and connected with the mould cavity by runners 20; in use, the mould is maintained at a temperature above the crystalline melting-point of the thermoplastics and above the activation temperature of the blowing and cross-linking agents used, the molten thermoplastic/blowing agent/cross-linking agent mixture is injected through passages 17, 18 into the mould cavity, and the mould kept closed until the thermoplastic has been cross-linked and the blowing agent has been decomposed. The method may also be applied to polyethylene and ethylene/ ethyl acrylate copolymer.
Patent GB-1236821-A (GB)
Title: A method and a device for the yarn control at yarn feeders
Inventor: ROSEN KARL ISAC JOEL
IPC: D03D47/36
Filed: 1968-06-12
Abstract: 1,236,821. Knitting-machines. K. I. J. ROSEN, 12 June, 1968 [20 Oct., 1967], No. 28019/68. Heading D1C. A yarn feeding device for a knitting machine comprises a store 11 on which the yarn may be wound and from which it can be fed intermittently, and means enabling the yarn to be positively fed. In the embodiment shown the store is stationary and mounted on a rotatable shaft 2 through which the yarn 5 is fed to emerge through tube 4. A disc 18 having arms 45 projecting through slots 48 in the store is mounted on a bearing 19 pivoted on the shaft. The disc normally assumes an inclined position and forces a coupling 24 into engagement with teeth on the underside of a drive pulley 6 so that shaft 2 and arm 4 can rotate. The rotating arm 4 winds yarn which is pushed down by the oscillating arms 45 when the build-up of yarn forces the disc to a horizontal attitude the coupling is disengaged. When the yarn is to be fed positively shaft 27 is depressed and raises arm 29 so that the yarn turns are swept off at the same rate as turns are being built up. In an alternative embodiment the store is rotated and thereby entrains yarn, which is fed from a fixed guide. In the embodiment of Fig. 6 (not shown) the build up of yarn obscures a slot (240) through which air is blown to operate the arm of a micro-switch. In a still furhter embodiment a disc having sloping teeth projecting through the drive is forced upwards by the turns until it engages a microswitch which stops the winding.
Patent GB-1030990-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: DAVIS JOHN CHRISTOPHER HAMMOND
IPC: H03M1/00
Filed: 1962-05-16
Abstract: 1,030,990. Selective signalling; staticizers. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. May 8, 1963 [May 16, 1962], No. 28039/65. Divided out of 1,029,303. Headings G4C and G4H. In a serial-to-analogue converter incoming bits are registered sequentially on capacitors C5 (only one being shown) under the control of clock-pulses Tx, x = 3 to 8, applied to the bases of transistors VT3 (only one being shown) and at time T1 (immediately after T8) the seven bits stored on capacitors C5 are transferred simultaneously, via transistors VT7, to capacitors C11 which control transistors VT13 with appropriately weighted loads.
Patent GB-206839-A (GB)
Title: Method of and apparatus for inserting coupons, photos or similar articles into cigarette packages or the like
IPC: B65B19/10
Filed: 1923-11-07
Abstract: 206,839. Aktiebolaget G. Arehns Mekaniska Verkstad. Nov. 11, 1922, [Convention date]. Packeting cigarettes and coupons or the like in receptacles.-Relates to a method of and means for depositing coupons, photos, separating partitions, or similar articles into cigarette and like packages. According to the invention, the coupons &c. 5 are fed from a roll 6 by feeding or printing rollers 8, which may be associated with registering devices, through a, guide 9, and into a chamber 4 lying between channels 2, 3 containing cigarettes which are to form two layers in a packet. Tongue shaped jaws 12, 13 feed the coupons from the severing devices to the chamber. Devices 10, 11 sever the coupon from the band, and a suitably shaped plunger enters the parts 2, 4, 3 and moves the assembled cigarettes and coupon longitudinally of the cigarettes through a mouthpiece and into a box or cover. The guide 9 may be so disposed that the coupon is deposited on the top of the cigarettes, or beneath them, or between an inner and an outer cover applied to the cigarettes. Two or more bands may be fad to a common cutting-device, or each band may have a cutting-device. The device may be used for the introduction of coupons into packets of articles other than cigarettes, and is stated to be applicable to the introduction of coupons into finished packages.