baber/WOPTO huggingface dataset:
Patent GB-1090387-A (GB)
Title: Aqueous cellulose derivative emulsion coating compositions
IPC: D21H19/34
Filed: 1965-02-25
Abstract: An aqueous emulsion coating composition contains, as the essential film-forming constituent, a plasticized organic-soluble, water-insoluble cellulosic polymer in the form of spherical particles having a diameter of 0.1 to 0.8 microns, and an emulsifier.  The composition may comprise 10 to 40% of a cellulose ester or ether soluble in one or more volatile organic solvents but insoluble in water, 10 to 30% of a plasticizer therefor, the proportion of the plasticizer being between one-fifth and one-half that of the cellulose ester or ether, 40 to 80% of water, the proportion of water being at least one-half of the combined proportions of the cellulose ester or ether, and 1/2 to 10% of an emulsifier, part or all of the emulsifier being an anionic emulsifier, the percentages being calculated on the total weight of the above ingredients only.  The cellulose derivative may be in the form of spherical particles of average diameter 0.3 to 0.6 micron.  The cellulose derivative may be a nitrocellulose, or a cellulose acetate, acetate butyrate or propionate.  It may be an ethyl cellulose.  The composition may contain also 2 to 20% of a coalescing agent calculated on the combined weight of only the agent and the ingredients already specified, there being more than one part of agent plus plasticizer for every three parts by weight of cellulose derivative.  The coalescing agent is defined as a liquid solvent for the cellulose derivative having a boiling-point of 120 DEG  to 230 DEG  C., preferably at least 130 DEG  C., and a relative rate of evaporation of 0.01 to 0.5, preferably up to 0.3, butyl acetate being 1.0, as determined with a Shell Thin Film Evaporator at 0% relative humidity and 25 DEG  C.  The coating composition may be prepared by forming an initial emulsion of the oil-in-water type from the cellulose derivative, the plasticizer, the emulsifier, water and a volatile organic solvent, distilling off the solvent, if necessary adding further proportions of any of the ingredients (other than the solvent), so as to maintain the proportions of the ingredients within the ranges specified.  The oil-in-water type emulsion may be formed without the cellulose derivative, the latter then mixed into the emulsion, either alone or in the form of a solution in some or all of the organic solvent.  The ingredients of the composition may all be mixed together in a high-shear mixer or a solution of the cellulose derivative in a volatile organic solvent treated in such a mixer before the other ingredients are added.  The object of this treatment with a high shear mixer is to reduce the particle size of the cellulose derivative.
Patent GB-539010-A (GB)
Title: Improvements in or relating to open fire grates
IPC: F24B1/18
Filed: 1940-05-08
Abstract: 539,010. Open fireplaces. GAS LIGHT & COKE CO., and EATON, F. J. May 8, 1940, No. 8295. [Class 126] An open firegrate suitable for burning coke or other smokeless fuel is fitted with firebars g sloping downwards from the front at an angle of not less than 8 degrees and the cast iron front is provided with a firebrick lining m more than 2 feet in height so that, with the firebrick sides and back of the grate, the lower part of the fuel bed is surrounded by heat-insulating material The firebars are formed in two groups a<SP>1</SP>, a<SP>2</SP>each having projecting studs d resting on a ledge e on the firefront and supported at the sides and back by firebrick slabs b<SP>1</SP>, b<SP>2</SP>, c. An igniting burner h below the ledge e is arranged so that the gas jets pass between the firebars at one-third of the distance between the front f and back slab c. The front f is secured tightly against the fireplace lining k by metal straps l slotted to fit over ragbolts l<SP>2</SP> in the hearth. The lower half of the front f is formed with a rectangular opening fitted with an ashpit cover o having louvred air inlets regulated by a pivoted shutter p. The shutter p is operated by a lever r mounted on a spindle s passing through the cover plate and fitted with a handle t. A spring u maintains the lever r in engagement with an inclined rib q on the shutter. The solid marginal portions a' of the firebar sections a<SP>1</SP>, a<SP>2</SP> project inwards beyond the slabs b<SP>1</SP>, b', c to overlap the sides and back of the ashpan w, the deposit of ash between the pan and slabs being thereby prevented.
Patent GB-105156-A (GB)
Title: Improved Chimney Top for the Preparation of Down Draught.
Inventor: GRIEVE GEORGE MIDDLETON
IPC: F23L17/02
Filed: 1916-06-13
Abstract: 105,156. Grieve, G. M. June 13, 1916. Chimney tops.-A pot of the type fitted with pivoted baffles or " scoops " adjacent to air inlets t is made with a truncated pyramidal upper end, the exit area of which is substantially the same as the sectional area of the shaft b, that of the body a being greater. At the top is a V- shaped baffle j, f enclosing an air inlet i, the part f being perforated. The baffles m are scoop-shaped; t h e y are pivoted on pivots r near the air inlets t so as to yield to the upward passage of a sweeps' brush, and have rounded upper ends p and tail-pieces q, which the sweep's brush engages as it descends so as to turn the baffles down again. The passages v, k past the baffles are of the same area as that of the shaft and the exit.
Patent GB-842403-A (GB)
Title: Improvements in semiconductor devices and methods of making such devices
IPC: H01L29/36
Filed: 1958-03-17
Abstract: 842,403. Semi-conductor devices. SHOCKLEY TRANSISTOR CORPORATION. March 17, 1958 [March 18, 1957], No. 8480/58. Class 37. A semi-conductor device comprises a crystal having a plurality of grain boundaries along which extend extrinsic regions of opposite conductivity types which are in operative relationship. Fig. 1A shows a semiconductor crystal with three grain boundaries 11, 12 and 13, which may be grown by seeding to provide twin boundaries 11 and 12 with a small angle of tilt to give edge dislocations 14 to form large angle grain boundary 13. The crystal is then subjected to a first diffusion in the presence, for example, of an acceptor and then a second diffusion in the presence of a donor during which some of the diffused acceptor material will diffuse out. This results in an N-type region extending from the surface to a point at which acceptors begin to predominate forming a deeper P-type region. The diffusion extends mainly along the grain boundaries, as shown in Fig. 1B. Surface etching removes the outer layer to provide the arrangement shown in Fig. 1C with electrodes 17 and 18 associated with N-type zones and electrode 16 with a P-type zone. This structure may constitute an analogue transistor with electrodes 17, 18 and 16, functioning as cathode, plate, and grid respectively. Alternatively N-zones 17 and 18 may be arranged to join and form a PN junction with P-zone 16 to form a field effect transistor. If the P-zone 16 is arranged to lie between, and contact zones 17 and 18 a junction transistor is provided.
Patent GB-451445-A (GB)
Title: Improvements in or relating to wire rope and cable clips and the like
IPC: F16G11/06
Filed: 1935-03-19
Abstract: 451,445. Rope clips. LISTER, W. W., 23, Crosby Row, Newcomen Street, London. March 19, 1935, No. 8560. [Classes 44 and 109] A rope-clamping device of the type comprising a U-bolt a straddling the ropes d and a plate b has a cam member e pivotally mounted upon the U-bolt. Incipient slip between the rope and the cam member e causes the latter to turn upon the bolt to bring a raised portion thereof into engagement with the rope to increase the grip ; the position of the member e upon the bolt also indicates such slip. The cam surface of the member e is grooved or ribbed obliquely to fit the lay of the outer strands of the ropes.
Patent GB-759404-A (GB)
Title: Improvements in or relating to electronic commutators
IPC: H03K17/00
Filed: 1954-03-24
Abstract: 759,404. Thermionic distributers. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 24, 1954 [March 30, 1953], No. 8589/54. Class 40 (3). [Also in Group XL ()] An electronic commutator comprises a horizontal ring of hard-valve trigger stages 21A- 21M triggered in sequence by pulses applied over leads 40 and a similar vertical ring of trigger stages 91A-91M triggered once for each complete cycle of the horizontal ring by a connection extending over lead 80, the two rings applying positive voltages through cathode followers 61A-61M and 131A-131M to vertical and horizontal sets of conductors 71A-71M and 151A-151M between which are connected diodes 161 controlling the production of positive output pulses in turn at terminals 201A- 201M, 202A-202M, &c. The individual circuits, Figs. 2-5 (not shown), are conventional and the Specification gives typical circuit values. Crystal diodes may replace thermionic diodes 161.
Patent GB-166933-A (GB)
Title: Improvements relating to apparatus for moulding plastic material
IPC: B28B3/20
Filed: 1920-03-24
Abstract: 166,933. Sagar-Richards, Ltd., and Richards, D. March 24, 1920. Stream-cutting machines; extrusion machines; cutting-apparatus.- Comprises improvements in apparatus of the type in which a die is held between a movable die-plate and a fixed dieplate connected with a compressor. A divided die A is held between a die-plate B secured to a compressor d and a movable lie-plate C which slides on guides c and is operated by a lever c' and link c<2> forming a toggle. The ends of the die are recessed to receive spigots c<6> on the plates B, C, whereby the parts of the die are held together. Material is forced into the die from the compressor by means of a piston D carried by a screw d<1> passing through a. worm-wheel d<2> formed as a nut, the screw being operable directly by a handle d<3> or indirectly by a handle d<6> operating a worm d<4> engaging the worm-wheel d<2>. A core H carried by the plate C is supported at its free end ty a core H<2> carried by a member d<9> arranged in the nozzle d<8> of the compressor d. In operation the die A is pressed against the plate B by mov.ng the plate C, and material is forced into the die from the compressor. Knives carried by holders e<1> are then advanced through slots in the plate B by levers e<3> to sever the article, after which the plate C is withdrawn, the die A being held against the plate B during such withdrawal by a forked lever a<2> which is held by a cam locking-device a<3>. Branch passages may be formed in the article by cores arranged within the die A, or by means of a hollow cutter H<1>, Fig. 7.
Patent GB-396157-A (GB)
Title: Improved air cleaner and combined air cleaner and flame trap for internal combustion engines or other applications
IPC: F02M35/02
Filed: 1932-03-23
Abstract: 396,157. Centrifugal gas - cleaners. SWAN, A., Royal Aircraft Establishment, South Farnborough, Hampshire. March 23, 1932, No. 8636. [Class 23.] A gas-cleaner, for use with an internalcombustion engine or for other purposes, has inner and outer shells A, B of different cone angles and the gas passes through the annular throat between the shells. A whirling movement is given to the gas by vanes in the part H which also serves as a flame trap. The layer of dust-laden gas which forms on the outer shell passes through the annular aperture E while the clean gas passes on between the vanes D which diminish the whirling. The dust-laden gas passes into the collector F which retains the dust while the gas passes through the filter G to re-join the main stream. The aperture forming the entrance to the dust collector may be arranged at right-angles to the direction of gas movement. A flame trap of the type described in Specification 344,806, [Group XXI], can be arranged at the entrance or exit of the cleaning device. Modified forms of shells may be used.
Patent GB-1442091-A (GB)
Title: Metallic threaded fastener
IPC: F16B37/04
Filed: 1974-02-26
Abstract: 1442091 Making threaded fastener; stamping; jointing AMERACE CORP 26 Feb 1974 [26 Feb 1973] 8666/74 Headings B3A B3Q and B3V [Also in Division F2] A metallic threaded fastener, .see Fig. 3, comprising a tubular body provided with threaded body portions 22, 24 having a wall thickness no greater than the depth of thread therein and axially extending, reinfrocing ribs 40 is made by placing a tubular blank 30, see Fig. 4, over a threaded mandrel 32 and radially advancing dies 34 against the blank and mandeform the blank into the configuration shown in Fig. 3. A second deforming operation may be carried out to deform a part of each threaded body portion 22, 24 radially inwardly to produce a self-locking fastener. The fastener may be mounted in a panel 42, see Fig. 8, by placing it in a hardenable liquid adhesive 52 and subsequently hardening the adhesive. Alternatively, the fastener may be attached to a panel by means of an annular thermoplastic member, which is located beneath the flange and which is melted and then cooled so as to bond the flange to the top of the panel, (Fig. 12, not shown). The fastener may be installed in a cavity in a thermoplastics member, by subjecting the latter to ultrasonic vibrations to soften the thermoplastics material and causing the fastener to be anchored therein, (Figs. 19- 20, not shown). In a modification, see Fig. 23, tabs 524 are provided in the flange of the fastener to engage the periphery of aperture 522 in a panel. The tabs may be formed by a piercing operation.
Patent GB-116287-A (GB)
Title: Improvements in or relating to Rotary Trimming Machines for Boot or Shoe Parts.
IPC: A43D87/00
Filed: 1918-05-27
Abstract: 116,287. United Shoe Machinery Corporation, (Assignees of Blackwell, H. T.). May 28, 1917, [Convention date]. Machine cutters, grinding in situ.-The cutter 22 of a rotary trimming-machine for boot soles is nicked, to form guides for trueing, by a steel or carborundum tool 34 supported on a rest 32 projecting from a stationary sleeve 24.
Patent GB-1236851-A (GB)
Title: Conveyor
Inventor: PHILLIPS MAURICE NORMAN
IPC: B65G25/00
Filed: 1969-02-18
Abstract: 1,236,851. Reciprocating conveyers. PHILLIPS & ROBERTS Ltd. 17 Feb., 1970 [18 Feb., 1969], No. 8824/69. Heading B8A. A conveyer for workpieces A-E comprises forwarding members 16 pivoted on a housing 12 such that each member 16 assumes one terminal position when supporting a workpiece and another terminal position when the workpiece is removed. The housing 12 has side walls 15 with recesses 13 for receiving the workpieces and the forwarding members 16 have lugs 20 for engagement by projections 23 provided on a reciprocable bar 21. When workpiece A is removed from an end stop 25, the associated member 16 pivots such that it no longer prevents workpiece B from rolling forward into the adjacent recesses 13. Workpieces C, D, E . . . then move forward, sequentially, to respective recesses (13), Fig. 3 (not shown), after which, by operating the bar (21) and pivoting the members (16), the workpieces are moved forward to positions similar to those in Fig. 1, ready for another cycle when the workpiece adjacent the end stop (25) is removed.. Alternatively if a workpiece other than the endmost is removed, upstream workpieces may be moved, as before. In Fig. 5, control levers 26 pivoted on the side walls 15 ensure that, if the end diameters of the workpieces are not equal, any tendency for the workpieces to skew will be obviated.
Patent GB-235841-A (GB)
Title: Improvements in or relating to balance regulators for clockwork-operated fuses of artillery projectiles
IPC: F42C9/04
Filed: 1925-04-02
Abstract: 235,841. Pollak, J. E., (Tavannes Watch Co. Soc. Anon.). April 2, 1925. Drawings to Specification. Balances, balance springs, and balance regulators; escapements.-The arrangements described and illustrated are substantially the same as those described and shown in Specifications 235,843 and 235,846.
Patent GB-803342-A (GB)
Title: Improvements in or relating to folding trollies
IPC: A47B31/04
Filed: 1954-03-26
Abstract: 803,342. Dinner wagons &c. WOODMET, Ltd., and IRLAM, J. W. March 1, 1955 [March 26, 1954], No. 8836/54. Class 52(3) A folding tea trolley has two tubular frames 10 of inverted U-shape pivoted at 12 to be foldable into a common plane and held apart in the erect position by foldable links 18 which support the ends of an upper tray 14, the limbs 11 of each frame being held apart by angle section member 27 secured thereto and forming supports for a second tray 14 located endwise by stops 28 on the members 27. Castors 30 are mounted at the extremities of frames 10.
Patent GB-911432-A (GB)
Title: Process for producing a vacuum
IPC: F04F9/00
Filed: 1961-03-10
Abstract: 911,432. Production of high vacua. HERAEUS G.m.b.H., W. C. March 10, 1961 [March 12, 1960], No. 8841/61. Class 8(1). . In. a process for evacuating a vessel 1 by freezing out the residual gas by means of a freezing pump 25 connected to the vessel by a line 3, a suitable auxiliary gas is introduced through a line 6 into the residual gas in line 3 and the mixture is chemically reacted to yield a more readily freezable product which is congealed in the pump 25. As shown hydrogen exuded from a pot of molten metal 2 is mixed with an excess of oxygen admitted through a solenoid-operated valve 7 in the line 6 and the mixture is converted to water vapour by glow discharge from plates 17 which vapour and residual oxygen is congealed by evaporating helium traversing a refrigeration circuit 26 . . 29.
Patent GB-454999-A (GB)
Title: Improvements in or relating to speed governing apparatus for internal combustion engines
IPC: F02D1/00
Filed: 1936-03-25
Abstract: 454,999. Speed governors. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. March 25, 1936, No. 8850. Convention date, March 30, 1935. [Class 57] The rack 14 controlling the output of a fuelinjection pump 10 is actuated by a spring- loaded diaphragm 15 exposed to vacuum existing in a Venturi 24 in the air induction pipe of an internal-combustion engine. A manually operated throttle valve 23 is located in the Venturi. The speed of the engine is prevented from exceeding a maximum value by a spring loaded unbalanced throttle valve 25 closing under excessive flow of air and increasing the vacuum affecting the diaphragm 15. A pipe 21<1> may connect the chamber 201 to the air induction pipe at a point located in front of the valve 25. In order to vary the ratio of fuel to air injected during normal running speeds, a nozzle 29, having its axis in a plane parallel to the axis of the induction pipe, may be fitted to the end of the pipe 21, the nozzle may be adjusted by rotary movement. In a modification, the valve 25 may be replaced by a valve 41 in a pipe 37 connecting the air induction pipe 22 to the chamber 20. The valve 41 is actuated by a spring- loaded diaphragm 45 exposed to induction pressure and atmospheric pressure so that when the maximum speed is reached the valve 41 cuts off communication between the pipe 22 and chamber 20 and thus causes the fuel to be reduced. When the engine is stationary the valve 41 is closed and together with the plug 44 may be used to vary the fuel to air ratio during normal speeds. In a further modification the valve 41 is in the form of a blade spring which closes a port upon an increase in speed of the air passing to chamber 20.
Patent GB-219721-A (GB)
Title: Improvements in means for preventing accidents in machines having cooperating rolls
IPC: F16P1/00
Filed: 1923-03-28
Abstract: A solid, liquid, or other lubricant, e.g. a heavy oil, adapted to be discharged on to a hand or other member trapped between rollers in order to facilitate its withdrawal, may contain an antiseptic or like medicinal substance.
Patent GB-107407-A (GB)
Title: Improvements in Universal Joints.
Inventor: FAUST LEVIN
Filed: 1916-06-23
Abstract: 107,407. Faust, L., Swenson, C. E., and Anderson, C. L. Juno 23, 1916. Channels and reservoirs in universal joints.- Recesses 4 containing lubricant in the outer ring 2 of a universal joint are connected by passages 5 in the sides of the ring and passages 7 in the bearing blocks 6 with trunnions 9 on the two forks 10 on the shafts 11. Washers 14 may be placed on the trunnions to confine the lubricant. In a modification the recesses 4 are connected with the trunnions 9 by lubricating passages through the body of the ring 2.
Patent GB-565459-A (GB)
Title: Improvement in spring clockwork mechanisms with motor winding gear
IPC: G04C1/12
Filed: 1944-05-11
Abstract: 565,459. Clockwork winding mechanism. LANDIS & GYR SOC. ANON. May 11, 1944, No. 8976. Convention date, May 17, 1943. Addition to 565,316. [Class 139] In a winding arrangement in which a switch in the circuit of the electric motor is controlled by a nut travelling on the driven shaft of the spring motor, a safety device is provided by disposing one of the gears of the driving train between the motors so as to be clamped by the nut and so stop the electric motor on the failure of the switch. The spring drum 4 is driven from the electric motor 25 through a train 19, 20, the gear 22 on the shaft 19 being so disposed as to be clamped between the travelling nut 8 and the driven gear 5 of the spring motor 4.
Patent GB-595157-A (GB)
Title: Apparatus for moulding concrete gables and the like
IPC: E04G17/00
Filed: 1945-04-11
Abstract: 595,157. Wall centering. BRADBURY & SONS, Ltd., J., and POWELL, A. D. April 11, 1945, No. 9046. [Class 20(ii)] Apparatus for moulding concrete gables and the like comprises shutters 14 each hinged at one end by a pin 3 to a moulding plate 1 through a hinge butt 4 and resting at the other end on a flanking wall or on a support attached thereto, and a jack-attaching plate 2 screwed to the flanges 5 and G on the moulding plate 1. The moulding plates are raised by jacking means with clamps that co-operate with the ledges 10 on the plates 2, whereupon the inclination of the shutters steepens until their top edges are in line with those of the moulding plates and their bevelled ends 20 rest on the flanking walls or on the supports 18a (the position shown in chain-dotted line). The supports 18a enclose the outer corners of the walls, to which they are clamped. At the start of the moulding operation (the position shown in full line) the shutters overlap the existing part of the wall. A filling plate 21 is used until the moulding is nearly completed. Two pairs of shutters are used for a gable and one for a lean-to wall. Specification 604,586 is referred to.
Patent GB-300073-A (GB)
Title: Improvements in machines for washing plates, cups and like utensils
IPC: A47L15/00
Filed: 1928-03-26
Abstract: 300,073. Williams, H. R. March 26, 1928. Plates, dishes, and the like, washing; cups, and drinking-vessels, cleaning. - A machine adapted for use in a household sink comprises a lower casing 1, in which fits an upper casing 8 provided with openings 16, 17 and with devices for guiding, brushing, and ejecting the dishes. The opening 16 has a door 18 which functions as a delivery tray. A similar tray 19 is provided at the discharge opening 17. The casing 8 is provided with trunnions supporting a cage 24, which can be rotated by means of a water motor 49 or, through gearing, by manual operation of a cranked handle 53. The cage is formed with recesses to accommodate the dishes, and is provided with brushes 35 - - 38 which, as they travel around with the cage, are rotated on their axes by means of wheels 39 travelling on tracks 40 - - 42. Some of the traces have cam surfaces whereby the brushes are given rooking movement. The dishes are guided by a detachable guide 54 and are ejected by means of a helical spring 43 carried by two arms 44 on a shaft 45 and actuated by means of a cam surface 48 engaging a roller on an extension of the shaft 45. The lower casing 1 is provided with a door 2 which is closed when the casing rests on the sink, and on raising the casing, is opened to an extent limited by a detent 5 and lug 6.