baber/WOPTO huggingface dataset:
Patent GB-593060-A (GB)
Title: Improvements in and relating to apparatus for delivering a liquid in measured quantities
IPC: G01F11/44
Filed: 1945-06-05
Abstract: 593,060. Delivering measured quantities of liquid. TEXTILE APPLIANCES, Ltd., and STALKER, A. J. June 5, 1945, No. 14153. Convention date, July 6, 1944. [Class 106 (v)] In apparatus for delivering a liquid in measured quantities through a measuring chamber there is provided a body portion defining and delimiting the upper part of the measuring chamber in which body portion extend a liquid supply inlet passage and an air-admission passage, a plug-cock valve having an aperture extending transversely across it and controlling the liquid supply inlet passage and having an air vent extending transversely across it controlling the air admission passage, the plug cock being adapted for part-rotational movement relatively to both said passages and the arrangement being such that when rotated into one position said plug-cock has the air-vent brought into register .with said air-admission passage to admit air through the latter into the measuring chamber at a time when the liquid supply inlet is closed and when rotated into an alternative position it closes said air-admission passage at a time when the liquid supply inlet is open. In Fig. 2. 31 represents the air-admission passage and 32 the air vent in the plug-cock 21 as described in Specification 593,059.
Patent GB-1261951-A (GB)
Title: Pulse code modulation transmission device
IPC: H03M3/02
Filed: 1969-03-18
Abstract: 1,261,951. Selective signalling. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 18 March, 1969 [21 March, 1968], No. 14171/69. Heading G4H. In a delta-modulation system of the type in which the size of the increment represented by each transmitted pulse is varied, the variation is effected by examining the pattern of pulses that occurs in each successive group of n time-slots, n being equal to three or more, and by varying the gain in the encoder feed-back loop. In a preferred embodiment an input signal 1, Fig. 1, a, Fig. 4a, is compared 4 with a feed-back signal b, Fig. 4a, to gate 8 selected clock-pulses 7 to a transmission line 16, the gated clock-pulses passing via variable gain amplifier 23, 34, to an integrator 6 to produce the feed-back signal. The gain of the amplifiers in the feed-back path is controlled by the output signal, Fig. 4e, of an integrator 29 which receives a pulse one timeslot long every time a pattern of four consecutive ones or of four consecutive zeros is detected in the transmitted pulse train by an analysing circuit 27. The analysing circuit comprises (i) a counter 42 consisting of two series-connected triggers 46, 47 and therefore able to count to four, the counter being so arranged that it only produces an output via an AND gate 48 when it registers a count of four and so that when this occurs subsequent input clock-pulses 7 are blocked at an AND gate 44, and (ii) a reset circuit 43 which sets the counter to zero whenever a transition from "pulse" to "no pulse" or vice-versa occurs in the transmitted pulse train. The result is that every time four consecutive ones or zeros occur a signal, Fig. 4d, is applied to the gain controlling integrator 29, and hence the effective incremental size of each transmitted pulse is varied in such a way that the feed-back signal follows the input signal as closely as possible. In a modification (Figs. 5 and 6, not shown) patterns of four consecutive zeros only are detected and as a result the counter can be of simpler construction and a counter using charge storage is described. In a second modification (Figs. 7 and 8, not shown) the pulses for transmission are also fed to a six-stage shiftregister and groups containing four or more consecutive ones are looked for by appropriately connected gates. In a third modification (Figs. 11 and 12, not shown) the gain control integrator is formed from a reversible binary counter controlling weighted resistors. Several other modifications are outlined including the use of a controlled attenuator e.g. a MOST (Fig. 9, not shown) and a pulse-duration modulator (Fig. 13, not shown) in place of the variable gain amplifiers in the feed-back path.
Patent GB-149481-A (GB)
Title: Improvements in auxiliary air-inlet devices for internal combustion engines
IPC: F02M1/00
Filed: 1919-06-04
Abstract: 149,481. Moore, H. C., and Butler, C. G. June 4, 1919. Fluid-actuated valves.-An air-inlet device comprises a member 1 interposed between a carburettor 4 and an engine manifold 3 and fitted with ball or other check valves for admitting air which are actuated by the impact of the mixture supply upon a floating member 5 of gauze or the like. The member 5 normally rests upon a ring 7, and when lifted by the flow of mixture it bears upon arcuate levers 9 pivoted upon a split ring 8 and having each a lug 19 which engages and opens an air-inlet valve in a port 11. This may be a ball valve or a beat valve with a fluted or triangular stem. The outer end of each port 11 is fitted with a removable cap 15 having an air-inlet perforation and retaining the valve spring in place.
Patent GB-560243-A (GB)
Title: Improvements in framed concrete building construction
IPC: B28B7/02
Filed: 1942-10-09
Abstract: 560,243. Moulding concrete beams. SHIPWRIGHT, W. G., and ELLIOTT, A. C. Oct. 9, 1942, No. 14209. [Class 87 (ii)]. A roof-span beam mould comprises a base 7, standardised sideplates 6 with out-turned upper portions and secured by bolts 9 to the base, the joints of the members forming the base breaking joint with the joints of the side-plates. The ends of the base stop short of the ends of the sides so that a beam with deepened ends is moulded. The reinforcement for the beam is supported on cross bolts 9 positioned above the inner surface of the base member 7. The sideplates may be removed, leaving the beam supported on the base. The cast beam is T-shaped in section and slopes at its upper surface from its centre towards each end.
Patent GB-1121969-A (GB)
Title: Improvements in or relating to a detachable fixing device for a parachute canopy permitting the practically immediate release of said canopy
IPC: B64D17/38
Filed: 1967-03-29
Abstract: 1,121,969. Strap fastenings. ETUDES ET FABRICATIONS AERONAUTIQUES. 29 March, 1967 [5 April, 1966], No. 14288/67. Heading E2A. A releasable fastening device for a parachute comprises a ring A adapted to be connected to a parachute strap and cooperating with an abutment 8 on a complementary part to be carried by a harness, the abutment, which retains the ring having a support face 10 therefor which is perpendicular to a base B which carries the abutment 8. As shown the ring is retained against the abutment 8 by a resilient strip 16 attached to the inside of a lever C pivoted to the base about a pin 12. A pair of mutually spring-loaded locking devices D, D, retains the cover C in operative position, each locking device including a locking element 17 which extends into apertures 18, 19 formed respectively in a flange 3 of the base B and the cover C. A safety cover F comprising a plate 42 is secured to a pair of arms 44 which are pivoted about the pin 12 and which in the operated positions are snap-engaged with side walls of the cover, in which position the cover F prevents operation of the locking elements 17. A plate 30 is normally urged by a spring 34 into abutment with an edge portion of the cover C, so that as that cover is pivoted towards the release position, the plate 30 is urged against the ring A to eject the latter from the base B. The base B is attached to the harness through straps S<SP>2</SP> and S<SP>3</SP> and a sliding bar buckle a.
Patent GB-1392991-A (GB)
Title: Prostaglandin derivatives and the preparation thereof
IPC: C07F9/40
Filed: 1972-03-27
Abstract: 1392991 Pharmaceutical compositions UPJOHN CO 27 March 1972 [12 April 1971] 14295/72 Heading A5B [Also in Divisions C2 and C3] Pharmaceutical compositions, suitable for oral, parental, rectal, vaginal, buccal and topical administration, contain novel prostaglandins of the formula wherein R is hydrogen, C 1-8  alkyl or a pharmacologically acceptable cation, R 2  and R 3  are H, methyl or ethyl, provided at least one of R 2  and R 3  is not H, and D is one of the four carbocyclic radicals wherein # indicates attachment of OH to the cyclopentane ring in alpha or beta configeration, together with pharmaceutically acceptable carriers. The prostaglandin possess similar activities to the naturally occuring prosteglands. The compositions, especially those for topical use, may contain antibiotics, for example gentamycin, neomycin, polymycin B, bacitracin, spectinomycin, and oxytetracycline, other antibacterials, for example, matenide hydrochloride, sulphodiazine, furazolium chloride, and nitrofurazone, and corticoid steroids, for example, hydrocortisone, prodnisolone, methylprednisolone and fluprodnisolone.
Patent GB-708646-A (GB)
Title: Improvements relating to gas turbine plant
Inventor: HODGE JAMES
IPC: F02C6/00
Filed: 1951-06-15
Abstract: 708,646. Gas turbines. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 11, 1952 [June J5, 1951]. No 14299/51. Class 110(3) Heat rejected in a cooler 10, supplied by the exhaust gases from a turbine 1. is used to raise the temperature of a gas stream which is passed through a duct 11 and mixed with the main stream at 12. The turbine exhaust, which may be further cooled at 5 is passed through a compressor 3 and expelled at 9 at approximately atmospheric pressure. The supply 11A, to the cooler 10, may be from the atmosphere or from the compressor ex- . haust or before the exhaust. An industrial plant may supply the source 2. A fan may. force gas through the supply 11A. The cooler 5 may be of a normal type. a boiler, or part of an industrial plant.
Patent GB-1131158-A (GB)
Title: Apparatus for monitoring the temperature prevailing in a grate of the type used for drying and calcining shapes
IPC: G05D23/27
Filed: 1967-03-29
Abstract: 1,131,158. Automatic control of temperature for sintering apparatus. KNAPSACK A. G. March 29, 1967 [April 1, 1966], No. 14306/67. Addition to 1, 074, 841. Heading G3R. In a sintering grate as described in Specification 1, 074, 841 wherein the temperature normally varies over a range defined by an upper and a lower limit means are provided to return the temperature of the grate to within these limits whenever the temperature tends to exceed the limits. The temperature under the grate is detected by radiation responsive devices whereby a control means 1 produces a control impulse when the temperature exceeds the upper limit. This pulse, by way of a switching device 3 causes a reversible motor 7 to operate to close a valve 8 thereby to reduce the quantity of combustion gas and air, or to increase the grate speed, so as return the temperature to normal. When the normal temperature is reached the control means 1 produces a further pulse which by way of a switching device 4 causes the motor 7 to run so as to return the valve 8 to its normal position. Should the grate temperature drop below the lower limit a control means 2 becomes effective to control the motor 7 in a manner oppositely to that just described. The temperature detectors may be arranged in pairs one behind the other in the forward direction of the grate, the control being effected by one or the other of the upper limit detectors and by one and the other of the lower limit detectors.
Patent GB-287040-A (GB)
Title: Improvements in and relating to earth boring drills
IPC: E21B10/20
Filed: 1927-05-27
Abstract: 287,040. Reed, C. E. March 12, 1927, [Convention date]. Borehole apparatus.-An earth-boring drill having roller cutters comprises a bit head in one piece and having a substantially horizontal lower face, and bearings for said cutters with shanks seated in the head and with portions covering the lower face of the head to protect it from wear. As shown, each roller cutter 3 is suspended from a hanger 6r which is centrally divided and provided with a bearing 5w for the cutter which has a groove 24 and an overhanging flange provided with a gate 25 by which the hanger sections may be inserted in the cutter in turn. Each hanger has a, shank formed of an inclined lower portion 6t and a semi-cylindrical upper portion 6 u which are engaged with a correspondingly formed socket in the head, the shanks of the hangers then contacting and forming a channel 6s for flushing fluid. The shoulders 6q of the hangers cover the lower face of the heads. Means such as wedges 22 and screw plugs may be provided to lock the hangers in position. The shanks of the hangers may enter separate sockets in the head, and further, the hangers may be made in one piece ; also the cutters may be simply slipped on to the bearing members of the hangers, being then held in position only by the opposing cutter. Specifications 283,514 and 286,587 are referred to.
Patent GB-651433-A (GB)
Title: Improvements relating to the synthesis of bis-quaternary salts
Inventor: COPP FREDERICK CHARLES
Filed: 1948-05-27
Abstract: Bis-quaternary salts of the formula <FORM:0651433/IV (b)/1> where R1, R2 and R3 are the same or different alkyl groups containing not more than five carbon atoms (or R1 and R2 form a ring with the nitrogen atom, e.g. a piperidine or morpholine ring), A and B are alkyl (of not more than seven carbon atoms), aryl or aralkyl radicals, M is a divalent ion such as SO4 or two monovalent ions such as Cl so that the salt is water-soluble, and the rings C and D and any aromatic portions of A and B may bear alkoxy or alkyl substituents, are prepared by treating with an alkyl ester a compound of the formula <FORM:0651433/IV (b)/2> where A, B, R1 and R2 are as above, except that R1 and/or R2 may be hydrogen.  The reaction is usually carried out in a mutual neutral solvent such as methyl alcohol, and, if R1 and/or R2 is hydrogen, an acid-binding agent such as sodium carbonate is added.  Methyl iodide is the preferred alkylating agent.  Examples are given.  Basic ethers of the formula II are obtained from ketones of the formula <FORM:0651433/IV (b)/3> as described in Specification 651,445, e.g. by reduction of the dioximes, further examples being included.  4 : 41-Dibenzoyl-diphenylether is prepared by condensing diphenyl ether with benzoyl chloride in the presence of aluminium chloride.  The provisional Specification is not limited as regards the number of carbon atoms in A, B, R1, R2 and R3.
Patent GB-1056024-A (GB)
Title: Improvements in and relating to the chlorination of water
IPC: C02F1/76
Filed: 1964-04-08
Abstract: A method of chlorinating water comprises producing either chlorine gas or an aqueous solution of active chlorine by electrolysis of a chloride solution at the place of chlorinating the water, the chlorine being added continuously thereto in an amount depending on a determined property of the water which has been chlorinated substantially immediately before, said amount being controlled by varying the current for electrolysis. The current control is preferably carried out automatically.  The chlorine gas may be dissolved in the electrolyte, and the electrolyte be added to the water to be chlorinated.  Alkali metal hydroxide and hydrogen formed during electrolysis may also be dissolved in the electrolyte. During periods of interruption of the treatment a voltage equal to or lower than the decomposition voltage of the electrolyte.  A suitable cell described comprises a cast-iron <PICT:1056024/C6-C7/1> tubular casing 11 serving as cathode, having concentrically arranged therein a bar of magnetite 12 which forms the anode, the ends of the cell being formed by insulating members 16, 17.  The cell is provided with inlet 24 and outlet 26 Fig. 2, (not shown) for the electrolyte and with outlet 25 for hydrogen gas formed during electrolysis. The method may also be used in processes in which materials dissolved or dispersed in water, e.g. cellulose fibres are to be chlorinated.
Patent GB-162560-A (GB)
Title: Improvements in nut locks
IPC: F16B39/24
Filed: 1920-05-27
Abstract: 162,560. Ellman, E. E., Kell, F. A., and Zacharias, L. L. May 27, 1920. Locking nuts.-A concavo-convex spring washer 8 is slit and provided with a bent-up tongue 11 to engage with ratchet teeth 15 on a nut 12 and so prevent the retrograde movement of the nut. The ratchet teeth on the nut are separated by a flat surface 14 and the teeth are deeper at the outer side than the inner. The tongue 11 on the washer is also deeper at the outer edge.
Patent GB-378911-A (GB)
Title: Improvements in the manufacture, production and use of chemical compounds which can be used as plasticisers
IPC: C08L1/08
Filed: 1931-05-16
Abstract: 378,911. Lacquers. COURTAULDS, Ltd., 16, St. Martin's-le-Grand, London, GLOVER, W. H., South Bank, Warwick New Road, Leamington, and BERRY, W., 37, Grasmere Avenue, Coventry. May 16, 1931, No. 14533. [Classes 91 and 95.] Castor oil heated with phthalic anhydride for a long time in the presence or absence of an acidic or basic condensing agent such as zinc chloride gives a product useful as a plasticizer in cellulose ester lacquers such as cellulose nitrate lacquers. In an example the condensation product of castor oil and phthalic anhydride, which is soluble in acetone, alcohol and butyl acetate, is made into a lacquer together with nitrocellulose, paraffin wax, alcohol, ether, toluene and butyl acetate.
Patent GB-946994-A (GB)
Title: Reducing the iron content of sodium borate solutions
IPC: C01B35/12
Filed: 1961-04-21
Abstract: The iron content of sodium borate solutions is reduced by contacting a sodium borate solution containing carbonate ions with at least 0.005% and preferably between 0.005 and 0.5% (based on the weight of solution) of a zinc compound which introduces sufficient zinc ions into the solution to result in the solubility product of zinc carbonate being exceeded, allowing zinc carbonate to form and to settle out whereby iron in said solution is carried down with the zinc carbonate, and separating the sodium borate solution from the precipitate. Zinc nitrate and chloride are the preferred zinc compounds, but other suitable compounds specified are the acetate, bromide, borate, chlorate, oxide and sulphate.  The examples illustrate the use of the chloride and nitrate.
Patent GB-944324-A (GB)
Title: Improvements in apparatus for wrapping sweets
IPC: B65B35/54
Filed: 1960-04-26
Abstract: 944,324. Packaging-machines. F. THEEGARTEN. April 26, 1960 [April 29, 1959], No. 14637/60. Heading B8C. Apparatus for individually wrapping two different kinds of sweets, arranging them in elongated groups with alternating kinds in each group and wrapping the groups, comprises means to space one kind as it issues from the individual wrapping device and to push the other kind into the spaces so formed. The confectionary is supplied by machines 10, 11, in strand form, the strands 12<SP>1</SP>, 13<SP>1</SP> being cut by knives &c. 18 and the two sweets so formed at each cut fed into wrapping wheels 16, 17. Reciprocating elements 19, 20 pass them, individually wrapped, from the wheels to beneath pivoted pushers 24 which operate out of phase, to force them into channels 23, thus turning them through 90 degrees. Owing to the out of phase pusher operation, a member 27 is enabled to move each sweet 26 transversely between gaps in the row of sweets 29. The column of alternating sweets advances to a further pusher which forces a group into a wrapper head, the finished packages being ejected at 32.
Patent GB-721392-A (GB)
Title: Improvements in hydraulic brakes
IPC: F16D55/228
Filed: 1952-06-11
Abstract: 721,392. Hydraulic brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. May 4, 1953 [June 11, 1952]. No. 14645/52. Class 103 (1). In a hydraulic braking system comprising a rotatable braking member, non-rotatable pads of friction material, actuated by a hydraulically operated piston and cylinder mechanism, to frictionally engage the braking member, said piston being provided with a seal fluid-tightly engaging with the wall of the cylinder, and a hydraulic reservoir open to atmospheric pressure and communicating, when the system is unpressurized, through a master-cylinder with the cylinder of said mechanism, the frictional force of the piston seal on the cylinder well is greater than the force exerted on the piston by the static head of hydraulic liquid. The invention is illustrated applied to a " spot-type disc brake in which an annular disc 1 rotatable with a vehicle wheel 2 is braked by hydraulically operated piston and cylinder mechanisms 4 and friction pads 5 operable in a non-rotatable housing 3 straddling a portion of the outer periphery of the disc to engage the radially extending sides of the disc as described in Specification 688,382. Hydraulic fluid supplied from a reservoir 12, situated above a master cylinder 7 is pressurized by the actuation of foot-pedal 9 to supply pressure to actuate the friction pads 5. The piston of each piston and cylinder mechanism 4 is provided with an annular groove in which is fitted a sealing ring 15 to prevent leakage of liquid past the cylinder and also to provide frictional resistance against the cylinder walls so that each piston will not move under the influence of the unpressurized head of liquid above. When the brakes are applied, the brake disc expands axially, outwardly forcing the pad and piston back slightly into the cylinder against the liquid pressure. On removal of the liquid pressure, the pistons and friction pads remain in the same position in the cylinder and the disc cools, contracting axially, thus providing or increasing, clearance between each pad and the disc. This invention could similarly be applied to hydraulically operated external shoe drum brakes but not to internal shoe-drum brakes. The Provisional Specification refers to Specifications 650,976 and 688,382.
Patent GB-1079485-A (GB)
Title: Parachutes
Inventor: HEINRICH HELMUT GUSTAV
IPC: B64D17/02
Filed: 1966-04-01
Abstract: 1,079,485. Parachutes. PIONEER PARACHUTE CO. Inc. April 1, 1966, No. 14657/66. Heading B7G. A parachute intended to be capable of gliding a horizontal distance at least equal to the altitude at which it is deployed has a canopy 2 provided with a front portion (not visible in the rear view of Fig. 4) formed from solid gores over which attached air flow is established during deployment, side portions 20 formed with rearwardly directed exhaust vents 24 between the edges of some gores and a rear portion 34 formed with one or more rearwardlydirected slots or openings 38 whereby air from the interior of the canopy may pass rearwardly through vents 24 and openings 38 to exert a forwardly-directed reaction force on the canopy. To stabilize the parachute during descent the side portions 20 are extended downwardly by panels 44 and to increase rearward airflow the rear panel may be cut away as shown at 40. The side vents 24 may be provided with control cords 32 which may be operated by the parachutist or by control mechanism to enable the parachute to be controlled in descent. A control cord may be attached to the peak 6 to enable it to be drawn inward during descent.