baber/WOPTO huggingface dataset:
Patent GB-780936-A (GB)
Title: Improvements in or relating to props for concrete shuttering
IPC: E04G25/06
Filed: 1956-02-07
Abstract: 780,936. Prop for concrete floor shuttering. GUSTAFSSON, E. R. Feb. 7, 1956, No. 3770/56. Class 20(2) A telescopic prop for concrete floor and ceiling shuttering comprises, outer and inner tubes 1, 2, each having a series of diametrically opposed holes 15, 3, Fig. 2, respectively, the spacing of the holes 15 in the outer tube 1 being different from and preferably smaller than the spacing of the holes 3 in the inner tube 2, a key 14 for connecting the tubes together when it is passed through aligned holes 3, 15, a manually rotatable toothed wheel 7 for extending the prop mounted on the outer tube 1 and extending through an opening 13 therein to engage with either of the rows of holes 3 in the inner tube 2, and an adjustable screw and nut connection 22, 23 between the prop head 21 and the inner tube 2 for fine adjustment in the length of the prop. The wheel 7 is mounted upon a spindle 9 which is removably received by upwardly open slots 8 in brackets 6 secured to the outer tube 1 and which is cranked to form an operating handle 12. The foot plate 18 of the prop is cup-shaped and is connected to the outer tube 1 by a headed pin 17 which permits free movement of the footplate with respect to the tube 1. The prop head 21 is rectangular and is provided with four pins 26 at the corners of a rectangle, so that the head may engage stock of two different dimensions.
Patent GB-852849-A (GB)
Title: Improvements in or relating to d.c. gate circuits
IPC: H03K17/74
Filed: 1958-03-04
Abstract: 852,849. Diode switching circuits. DAYSTROM Inc. March 4, 1958 [March 12, 1957], No. 3852/60. Divided out of 852,848. Class 40(6). The Figure shows a D.C. gate circuit for switching a D.C. current Io into or away from a load 11 in dependence upon the polarity of a switching signal Is. When the switching signal Is is of the same polarity as the D.C. current Io to be switched, i.e. positive, diodes 16 and 17 are non-conducting and diodes 18 and 19 conducting. In this condition the current Io passes through diode 18 and load 11 while the switching current Is is shunted through diode 19. When the switching current Is is reversed in polarity, i.e. negative, diodes 16 and 17 conduct and diodes 18 and 19 are blocked; in this condition none of the D.C. current Io or switching current Is passes through diode 18 or load 11. The D.C. current Io is shunted through diode 16 and the switching current is conducted through diodes 16 and 17. The switching current Is must be at least as large as the current Io when the gate is closed and is preferably 2 to 10 times as large as the current Io in both the gate open and closed directions. The diodes are preferably diffused junction silicon diodes. The load 11 must be of the low impedance D.C. type.
Patent GB-114033-A (GB)
Title: Improvements in and relating to Pulsating Apparatus for Milking Machines.
Inventor: WALLACE ROBERT
IPC: A01J5/04
Filed: 1917-03-16
Abstract: 114,033. Wallace, R. March 16, 1917. Cow - milkers. - Comprises a construction of pulsating apparatus for milking-machines of the type in which the outer chamber of a doublewalled teat cup is alternately connected to vacuum and the air, whilst the inner chamber is under constant vacuum. The device is shown diagrammatically in Fig. 4 as applied to the base of a teat cup, but it may be mounted on the claw or on the milk receptacle. The inner chamber 6 of the teat cup, which is under constant vacuum, is connected by a passage 5 to a small valve chamber 4 to which the outer chamber of the teat cup is also connected by a passage 7, communication between the inner and outer chambers being controlled by a ball valve 14. A side passage 10 connects the outer teat cup chamber to a second, larger, valve chamber 9 containing a large loosely fitting ball or piston 18, and communicating with the atmosphere through an aperture 16 adapted to be closed by a ball valve 15. The ball or piston 18 operates the valve 14 through a sliding stem or plunger 12 with a head 13. When air is in the outer chamber, the ball 18 being in the position shown with the valve 16 closed the vacuum in the inner chamber 6 draws the ball 14 off its seat and produces a vacuum in the outer chamber. As the vacuum increases, extending to the chamber 9, the suction raises the ball 18 which through the plunger 12 forces the ball valve 14 back on to its seat to cut off the vacuum and at the same time liberating the ball valve 15 which allows air to enter. When atmospheric pressure is restored in the outer chamber, the ball piston 18 drops and the cycle is repeated, the action proceeding continuously and producing a pulsating effect.
Patent GB-989257-A (GB)
Title: Manufacture of amines by aromatization
IPC: C07C209/68
Filed: 1962-02-01
Abstract: Aromatic amines are prepared by heating together a six-membered alicyclic ketone and ammonia or a primary or secondary amine with a dehydrogenation catalyst.  Alternatively, cycloalkylideneamine may be used as starting material instead of ketone and primary amine. It is preferred to use a hydrogen acceptor, especially a nitro-compound; the amine starting material may be produced by partial reduction of nitro-compound and the unreduced portion of the latter then functions as hydrogen acceptor.  Suitable ketones, amines, catalysts and acceptors are listed in the Specification; the preferred catalyst is palladium supported on carbon.  In the examples, the following compounds are produced according to the method of the invention: N-isopropyl-, N-t-butyl or N-cyclohexyl - N1 - phenyl - p - phenylenediamine, diphenylamine, N,N1 - diphenyl - p - phenylenediamine; 2 - methoxy -, 4 - hydroxy - phenoxy-, ethylbutoxy-octyloxy -, ethoxy - and isobornyloxy - diphenylamines; N - cyclohexyl-N1 - p - tolyl - p - phenylenediamine, N,N1-dicyclohexyl - p - phenylenediamine, N - (4-ethoxyphenyl) - N - phenyl - p - phenylenediamine, N - cyclohexyl - N1 - 1 - naphthyl - p-phenylenediamine, N - methylaniline, phenyl-1 - or 2 - naphthylamine, 4 - methyldiphenylamine, 4 - ethoxy - 31 - methyldiphenylamine 4 - fluorodiphenylamine, 4 - benzoyldiphenylamine, 4 - methoxy, carbonyldiphenylamine, 2,6 - dimethyldiphenylamine, aniline, (N-cyclohexylaniline and dicyclo - hexylamine as by-products), N-methyldiphenylamine and triphenylamine. The preparation of 4-formamido -, acetamido - and N - ethylacetamidodiphenylamines is also described.
Patent GB-303485-A (GB)
Title: Improvements in or relating to the manufacture of cellulose esters
IPC: C08B17/02
Filed: 1928-02-08
Abstract: 303,485. Verein f³r Chemische Industrie Akt.-Ges. Jan. 5, 1928, [Convcntion date]. Rotary mixers.-Cellulose esters, particularly cellulose acetates, are prepared in a revolving drum which has an acid resisting wall or lining and is provided with bars or beams, which traverse the exterior of the drum and are fixed at both ends to the inner wall thereof, so that they exert a cutting action on the heart of the reaction mass. In the drawing, the drum is fitted with bars or beams a'. The usual heating and cooling devices may be arranged in any desired manner and the gear for rotating may be located as shown either at the end or front face of the drum casing.
Patent GB-1181364-A (GB)
Title: Improvements in or relating to portable screw-threading die driving machines
Inventor: ARNOT ALFRED ERWIN REGINALD
IPC: B25B1/10
Filed: 1966-01-28
Abstract: 1,181,364. Screwing machine. A. E. R. ARNOT. 24 Jan., 1967 [28 Jan., 1966], No. 4043/66. Heading B3N. A portable screwing die head comprises a tooldriving member 13, Fig. 2, in which a die or an extension die-holder is located, drive input spindles 14-17, Figs. 1, 3, for driving member 13 at different speeds via a worm and wheel drive 18, 19 and a clamp having arms 97, 98, Fig. 4, for clamping the workpiece. The drive is supplied to any of the socket-ends 23-27 of spindles 14-17, manually, or by a portable electric drill, and each spindle 15-17 transmits the drive to spindle 14 by gearing. Member 13 has an internal cross-section as shown in either Fig. 3 or Fig. 5, and is held in an aluminium alloy frame 11 by a wire-race ball-bearing 12, Fig. 2. The arms 97, 98, Fig. 4, have jaws 107, 108, for clamping a pipe 59 to be screwed, and are pivoted about a pin 56 by a screw 99 having opposite hand screw threads 100, 101 actuated by a handle 106. A nylon brake band 73, Fig. 1, is wrapped on pin 56 and acts on a nut 60 screwed on to member 13. The die head is connected to a base 86, Fig. 10, by legs 84, 85. A method of plotting the shape of jaws 107, 108, is described. The arms 97, 98 may pivot about separate pivots (561), (56<SP>11</SP>), Fig. 14 (not shown), or the pivots may be replaced by cam faces (134), (135), Fig. 14A (not shown). Reference has been directed by the Comptroller to Specifications 998,001, 998,002 and 998,003.
Patent GB-1145621-A (GB)
Title: Fluid-operated braking system
IPC: B60T8/40
Filed: 1966-01-29
Abstract: 1,145,621. Anti-skid braking systems. R. N. KNIGHTS. 30 Jan., 1967 [29 Jan., 1966], No. 4078/66. Heading F2F. A fluid-operated vehicle anti-skid braking system comprises a brake actuator 6, Fig. 1, connected to the delivery side of a pump operable by rotation of a wheel or a wheel drive transmission, a throttle valve 8 interposed between the delivery and low-pressure sides of the pump and a master cylinder 16 connected to the throttle valve whereby fluid displaced from the master cylinder moves a throttle valve member 14 from an end position against a spring load to increasingly restrict the flow through the throttle valve. Pump 1 mounted on wheel axle 2 is turned by hub 25 and delivers fluid through a non-return valve 5 to the brake actuator 6. The circuit also continues to throttle valve 8 and thence through recesses 7, 9 and conduit 10 to reservoir 11. An orifice 32 between recess 9 and chamber 28 limits the rate of valve closure under pedal pressure. In the upper end position of valve member 14 a transfer passage 17 registers with a transfer passage 18 to connect recess 9 with chamber 15 to enable master cylinder 16 to be replenished from reservoir 11 which is pressurized. When the brake pedal is depressed at a vehicle speed of about 10 m.p.h. the fluid from master cylinder 16 causes valve member 14 first to close the transfer passage 17 and then starts throttling the flow from pump 1 through recesses 7, 9 to reservoir 11. On wheel skidding the pump delivery pressure in brake actuator 6 will fall to restore wheel adhesion. The pump delivery pressure acts on piston 22 to move stem 23 upwardly thereby preventing complete throttle valve closure. The brake fluid pressure acting on plunger 20 applies a brake reaction load to pedal 19 through the liquid column in conduit 27. Below 10 m.p.h. the load on valve member 14 is sufficient to close the throttle valve against the load on piston 22. Fluid is then displaced by plunger 20 and is applied to the brake actuator 6 at a pressure proportional to that applied to pedal 19 as in conventional braking. The speed below which the latter effect takes place is adjusted by a restrictor 36. The risk of momentary wheel lock occurring during heavy braking pressure on pedal 19 is reduced by mounting the attachment 30 so that it can turn to a limited extent on stub axle 2 to cause an arm 43 to bear against movable abutment 44. This varies the closing pressure on relief valve 38 to limit the maximum fluid pressure in the system. In another embodiment the pump 1, Fig. 2, is driven from propeller shaft 51 and fluid is pumped via a non-return valve 5 to a throttle valve 8, Fig. 1, controlled by a master cylinder 16. Return pipe 10 leads to reservoir 11 and restrictor 36 is connected between pipes 4, 10. An extension of pipe 4 leads through flow divider 55 to the brake actuators of each wheel. A relief valve 38, Fig. 1, is associated with the brake actuators of each wheel 52, 62, 63.
Patent GB-585946-A (GB)
Title: Improvements in lubricating materials
Filed: 1943-03-12
Abstract: A lubricant particularly for use as a filling for grooves or recesses in one or other of relatively movable bearing surfaces and which is substantially insoluble in mineral oil which has access to the bearing consists of stearic acid in admixture with sufficient castor oil to form a highly viscous liquid or paste.  A small amount of graphite may be added.  Proportions specified are from 30 to 60 per cent. of stearic acid with from 70 to 40 per cent. of castor oil.  A preferred embodiment comprises a mixture of stearic acid 35 per cent., castor oil 63 per cent. and graphite 2 per cent.  The stearic acid is first melted, the desired p  proportion of castor oil and graphite added, and the mixture passed through a roll mill.  The lubricant is not suitable for brass surfaces at a temperature over 70 DEG C.
Patent GB-1388381-A (GB)
Title: Polymer dispersions and coating compositions based thereon
IPC: C08J3/11
Filed: 1971-02-08
Abstract: 1388381 Polymer dispersions IMPERIAL CHEMICAL INDUSTRIES Ltd 24 Jan 1972 [8 Feb 1971] 4121/71 Heading C3G Particles of synthetic film-forming polymer are dispersed in an inert organic liquid in which the polymer is insoluble, the organic liquid containing from 40-75% by weight of a solvent for the polymer and the solvent and non-solvent components of the organic liquid being miscible so as to form a single liquid phase. The dispersion of the polymer particles is stabilized by a polymeric stabilizer which comprises an anchoring component, which associates with the particles of disperse polymer, and a component which is solvated by the organic liquid and provides a stabilizing steric barrier around the particles, the stabilizer having been reacted chemically with the polymer particles to covalently link the stabilizer to the disperse polymer. The polymer dispersion is suitably prepared by polymerizing the monomer precursor(s) of the polymer in the organic liquid containing the polymeric stabilizer, the latter preferably being one containing ethylenically unsaturated bonds in the molecule whereby the disperse polymer formed is covalently bonded to the stabilizer by addition (graft) polymerization. The dispersions may additionally include pigments, non-volatile plasticizers, and polyester resins and are useful in coating applications. Examples illustrate dispersions of methyl methacrylate/n-butyl acrylate and methyl/ methacrylate/2-ethylhexyl acrylate copolymers, the polymeric stabilizer being the product obtained by (i) condensing poly-(12-hydroxystearic acid) with glycidyl methadrylate, (ii) copolymerizing the product with methyl methacrylate and glycidyl methacrylate and (iii) reacting the copolymer with methacrylic acid to introduce ethylenic unsaturation into the copolymer.
Patent GB-414732-A (GB)
Title: Improvements in the construction of domestic and similar fireplaces
IPC: F24B1/189
Filed: 1933-02-10
Abstract: 414,732. Stoves. MOORE, J. R., 9, Alderman's Hill, Palmers Green, London. Feb. 10, 1933, No. 4127. [Class 126.] Outlets to chimneys.- In a domestic fireplace an air chamber 3 open at the base and arranged between the fireplace proper and the chimney outlet, has the bottom lip 4 of its front wall in the plane of the fireplace opening and constituting the top thereof, while the flue opening 12 leads to a passage 13 turned abruptly to a flank before reaching the chimney 15. The base opening 6 is narrower from front to back than from side to side and the back wall 10 of the air chamber curves upwardly and its side walls outwardly, to join the front wall. There may be a removable door in the top of the chamber 3.
Patent GB-328062-A (GB)
Title: Means for closing load-carrying spaces of vehicles
IPC: B60P7/04
Filed: 1929-02-07
Abstract: 328,062. Celhay, E. Feb. 7, 1929. Bodies.-In a cart or lorry of the kind in which, for loading and unloading purposes, access to the floor space is obtained by raising to a position beneath the roof one or more flexible shutters composed of a plurality of slats and normally closing the sides, the side edges of each shutter R are guided in grooves in pillars C having straight vertical side portions, the full height of which is occupied by the shutters in their lowered position. At their upper ends the pillars C may form separate guides so that, as shown, two shutters on opposite sides of the vehicle may be simultaneously disposed beneath the roof A, or the arrangement may be such that one shutter only may be raised at a time.
Patent GB-1010359-A (GB)
Title: Method and apparatus for producing preforms
IPC: B29B11/06
Filed: 1964-01-31
Abstract: 1,010,359. Moulding preforms. STANDARD TELEPHONES & CABLES Ltd. Jan. 31, 1964 [Feb. 6, 1963], No. 4207/64. Heading B5A. Cylindrical preforms having at least two layers of dissimilar materials are produced by progressively depositing the materials in a cylindrical mould in a direction parallel to the axis of the mould in adjacent concentric layers and axially compressing the deposited materials. A three-layer preform is produced by depositing material from the base of a hopper 2, comprising three concentric compartments 12, 13, 14 on to a piston 6, constituting the base of a mould 5, which is lowered from the top of the mould by means of a hydraulically actuated piston 33. The hopper 2 is vibrated as the material is deposited by means of a motor 3 rigidly fixed to the hopper driving an eccentric weight 19. When the piston 6 reaches the required depth in the mould 5 the hopper 2 is removed and replaced with a compression plate and the piston is raised to compress the material into a preform. In two further embodiments, similar preforms are produced by raising a hopper relative to the fixed base of a mould and by depositing material into annular spaces defined within a mould by removable tubes and sleeves. It is stated that the preforms may comprise inner and outer layers of powdered P.T.F.E. and an intermediate layer of powdered P.T.F.E. and abrasive filler, for subsequent use as an insulating coating for wire.
Patent GB-469965-A (GB)
Title: Improved system of card filing
IPC: B42F17/32
Filed: 1936-02-12
Abstract: 469,965. Card indexes. RILEY, C. G. Feb. 12, 1936, No. 4208. [Class 146 (i)] A vertical card index has inserted between each of the index cards a sheet of paper or similar material b more flexible than the cards and provided with a tongue a projecting above the upper edges thereof, so that by pressing backwardly on the tongue and then drawing it forwardly the sheet is caused to form a space between the adjacent cards to facilitate their inspection. The tongues a are preferably situated near the right-hand side of the sheets, and the sheets may be of less width than the cards so as to permit of some tongues being out of alignment with regard to the remainder. A folded-back part j integral with the main sheet may be provided for recording matter thereon. The upper edge of each tongue may be folded back on itself and secured by adhesive as shown at c so as to make it more durable. Each separating member may be formed by extending the tongue towards the bottom of the cards and providing it with a base sufficiently wide to support it in an upright position. Specification 271,817, [Class 146 (i)], is referred to.
Patent GB-1416571-A (GB)
Title: Pulse generating circuit
IPC: H03K3/57
Filed: 1973-01-27
Abstract: 1416571 Pulse generating circuits ENGLISH ELECTRIC VALVE CO Ltd 22 Nov 1973 [27 Jan 1973] 4269/73 Headings H3P and H3T A single switch 4 both discharges a pulse forming network 1 into a load 5, and also causes resonant recharging of the pulse forming network by a D.C. source through a tuned circuit 6, 7. The switch 4 operates at the tuned circuit frequency or a submultiple thereof, and may be a thyristor, a thyratron, an ignitron or a trigatron. Assuming the PFN 1 to have been first discharged by switch 4, the latter continues conducting until point A goes negative, the tuned circuit having the effect of reversing the voltage at A relative to the negative D.C. terminal. The oscillation continues until A goes positive, diode 3 conducts, and PFN 1 is recharged ready for the next operation of switch 4.
Patent GB-477238-A (GB)
Title: Improvements in aeroplanes
IPC: B64C9/00
Filed: 1937-02-12
Abstract: 477,238. Aircraft controls. POLLOPAS PATENTS, Ltd. Feb. 12, 1937, No. 4286. Convention date, Feb. 19, 1936. Addition to 459,639. [Class 4] An aeroplane having a control surface arranged as described in the parent Specification has the support 7 or its upper part mounted so that it may be tilted laterally or longitudinally of the aircraft; alternatively, the support is arranged in two telescopic parts. In one form, wings 2, 3 are provided, respectively, with fins 5, 4. The support 7 provided with fins 10, 11 is pivoted to the aircraft fuselage, its lateral inclination is controlled by cables 8, 9 and its longitudinal inclination by separate cables. More than one support may be provided and they may be lowered on to or into recesses in the wings. The support may be retractable into a vertical protuberance on the fuselage and the fins 10, 11 may be controlled by the pilot independently of the inclination of the support.
Patent GB-469622-A (GB)
Title: Improvements relating to the feeding of cards or like articles from a stack
IPC: B65B43/18
Filed: 1936-02-13
Abstract: 469,622. Feeding articles from stacks. CRIGHTON, J., and INDUSTRIAL MACHINERY CO., Ltd. Feb. 13, 1936, No. 4345. [Class 117] A machine with a reciprocating tooth or equivalent device for feeding cards or sheets from the bottom of a stack has a pivotally mounted suction cylinder with a rigid nozzle thereon brought into contact with the lowest card or sheet by oscillating the cylinder, the piston thereof being reciprocated in synchronism to produce the suction effect. In the form shown, cam 32 moves the cylinder 28 about pivot 30 and brings the nozzle 31 into contact with the lowest carton slide of the stack 10 and further rotation of the cam bends down the rear end of the slide past the spring 19 which prevents it springing back when the suction is destroyed when the piston 40 moves past the cylinder port 41. The slide still rests on the ledges 15 and is moved forward by the tooth 21 of a reciprocating bar 22 and reaches feed rollers 23, 24 and rollers 25, 26 whereupon it is delivered to the appropriate mechanism by the reciprocating mechanism. Intergeared mechanism is described for actuating the reciprocating parts, also the cams and rollers. The slides are supported at their forward ends by the curved inclined tongue 16a.
Patent GB-1447300-A (GB)
Title: Cylinder head gasket
IPC: F02F11/00
Filed: 1974-01-31
Abstract: 1447300 Gaskets GOETZEWERKE FRIEDRICH GOETZE AG 31 Jan 1974 [31 Jan 1973] 04491/74 Heading F2B A coating which adheres to the metal parts 4, 7, 8 of a cylinder head gasket to improve sealing, also impregnates the porous base material 1, 2. The impregnation and coating may be perforated at the same time by the application of a liquid polymerisable plastic, rubber or latex.
Patent GB-306941-A (GB)
Title: Improvements in means for cooling the cylinders and cylinder heads of internal combustion engines
IPC: F02F1/08
Filed: 1929-02-11
Abstract: 306,941. SÚguin, L., and SÚguin, A. Feb. 28, 1928, [Convention date]. Cylinders, cooling. -- Cooling-ribs 60 are provided on the cylinder head, 63 on the valve casing, and 65<a> around the cylinder barrel. The ribs 60 are surrounded by a ring 62, and the ribs 65<a> are formed on two semicylindrical members 64, 65 bolted together at 66, and are also surrounded by a casing 68. A hood 70 arranged above the casings 62, 68 has an opening connected to a fan for supplying the cooling-air. A baffle 73 is arranged in the annular space 72 between the valve casing and cylinder head, for directing the cooling-air. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter :- Cylinders, arrangement of igniters in.-A pair of spark plugs 50 are arranged in diverging manner in the top of the combustion chamber 3. Cylinders, combustion chambers and ports of. -The exhaust valve 9 and inlet valve 15 are arranged coaxially at opposite sides of a narrow combustion chamber. This subject-matter does not appear in the Specification as accepted.