baber/WOPTO huggingface dataset:
Patent GB-818238-A (GB)
Title: Improvements in or relating to pneumatic elevating and separating systems
Inventor: HALLWORTH ROBERT
IPC: B65G53/60
Filed: 1957-02-11
Abstract: 818,238. Pneumatic separating. SIMON Ltd., H. Jan. 21, 1958 [Feb. 11, 1957], No. 4559/57. Class 117 A stream of material and air is carried up a pipe 1 to an air separator 2, whereby the air passes through a duct 4 and the material flows into an expansion chamber 7 having a hinged trap valve 8 which permits the passage to a hopper 9 of all material in excess of that necessary to prevent the flow of air therethrough. The hopper wall 12 has a number of adjustable slots 13 extending its full width through which the material flows as a number of thin layers, and the separated air passes downwardly through a duct 11 and then upwardly through the layers in an aspirating duct 14. The impurities are thereby carried away through an air duct 19 which leads to a secondary air separator 20 preferably of the cyclone type. An outlet valve feeder 16 is provided for the aspirated material, and a door in a wall of the hopper allows the removal of the larger material trapped therein. A bypass air duct leads from the duct 4 to the duct 19, and a valve 21 controls the quantities of separated air flowing through the ducts 14 and 18. Specification 684,169 is referred to.
Patent GB-836445-A (GB)
Title: Improvements in or relating to structures embodying electric fittings
IPC: F21S8/02
Filed: 1957-02-11
Abstract: 836,445. Mounting light fittings in structures. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 11, 1957 [Feb. 14, 1956], No. 4592/57. Class 75(3) A wall, floor or ceiling 1 having a front surface 3 and rear surface 2 which need not be an exposed surface, is formed with an aperture extending therethrough closed at or near the rear side by a closure member 5 on which is mounted an electric fitting 8 supporting a source of light or heat e.g. a lamp 23 having a bulb of the reflecting type, in the aperture, a junction box 9 and supply conduit 11 being mounted on the rear of the closure member. The aperture may be lined with a cylinder 4a of asbestos cement, the closure plate 5 being of hygroscopic material. The junction box and conduit may be embedded in a hard material applied in plastic form e.g. concrete, to the rear surface of the wall. The aperture is made during the construction of the wall by the insertion of a former; in the case of prefabricated blocks, the apertures may be provided before they are assembled.
Patent GB-1493431-A (GB)
Title: Method and apparatus for the controlled combination of tobacco components
IPC: A24B3/08
Filed: 1975-02-04
Abstract: 1493431 Mixing tobacco HAUNI-WERKE KORBER & CO KG 4 Feb 1975 [8 Feb 1974] 4634/75 Heading A2C A method of combining two tobacco components comprises supplying components continuously to a combining point and varying the flow rate of one component in dependence of the moisture content of both components. As shown, a conveyor 1 conveys leaf tobacco towards a mixing station 8. The moisture content is determined by a device 11 and the through part by a weighing device 12. The two resulting signals are combined to give a signal representing the dry weight of the leaf. This signal is then converted to one representing the desired dry weight of stem to be added to the leaf. A second moisture measuring device 18 determines the moisture in stem being conveyed towards the mixing station 8 by a conveyor 3. A signal representing the desired moist stem weight may therefore be derived and used to adjust a device 16 which determines the throughput of the conveyor 3.
Patent GB-814914-A (GB)
Title: Improvements in or relating to resistors and resistor materials
Inventor: HUFFADINE JOHN BERTRAM
IPC: H01C7/00
Filed: 1957-02-11
Abstract: 814,914. Ceramic compositions. PLESSEY CO. Ltd. Feb. 18, 1958 [Feb. 11, 1957, May 15, 1957], Nos. 4640/57 and 15369/57. Class 22. [Also in Groups XI and XXXVI] An electrical resistor described in (Group XXXVI) comprises a resistive body consisting of a compact sintered mixture of molybdenum disilicide particles and alumina particles of such mixture ratio as would normally result in the material being an insulator wherein the insulation between adjacent molybdenum disilicide particles is bridged resistively by the incorporation of elemental carbon in the sintered mixture. In the embodiment described alumina powder is heated in oxygen-free nitrogen and the nitrogen is then replaced by methane which causes carbon to be deposited on each particle of the powder. The powder is then allowed to cool in oxygen free nitrogen and when cooled is mixed with the molybdenum disilicide in a ball mill. The mixture thus obtained is then sintered and the resulting structure of the hot pressed material is as shown in Fig. 1.
Patent GB-1021858-A (GB)
Title: Fumaramic acid derivatives
IPC: C07C233/02
Filed: 1963-02-05
Abstract: The invention comprises N-(phenyl- or halophenyl-alkylene)-fumaramic acids wherein the alkylene group has two or three carbon atoms in a straight chain and may be further substituted by an alkyl group having 1 to 10 carbon atoms or a phenyl, halophenyl, benzyl or halobenzyl radical, alkali metal salts and C1- 6 alkyl esters thereof, and their preparation by reaction of the corresponding phenylalkylamine or halophenylalkylamine with a C1- 6 alkyl ester of a fumaryl halide, and saponifying the product.  The compounds of the invention have pharmaceutical activity (see Division A5). Phenylalkylamine and halophenylalkylamine starting materials are prepared by (a) reaction of a carbonyl compound with formamide and formic acid, (b) hydrogenation of a nitrile, (c) reaction of a nitrile with a Grignard reagent to give a ketimine, which is then reduced in the presence of a noble metal catalyst, and (d) reaction of a ketone with hydroxylamine to form a ketoxime, which is catalytically hydrogenated.  3,4 - Phenyl - or halophenyl - substituted - 2 - butanones are prepared by alkylation of the corresponding phenyl or halophenyl - 2 - propanone with an appropriate halide.  m- and p-Chlorophenylacetone are prepared by reaction of m- or p-chlorobenzaldehyde and nitroethane.ALSO:Pharmaceutical compositions for administration in conjunction with penicillin, having penicillin-excretion inhibiting, uric acid excretion enhancing and cholesterol-inhibiting activity, comprise an N-(phenyl or halophenyl-alkylene)-fumaramic acid, wherein the alkylene group has 2 or 3 carbon atoms in a straight chain and may be further substituted by C1-10 alkyl, phenyl, halophenyl, benzyl or halobenzyl groups, or an alkali metal salt or C1-6 alkyl ester thereof, in a dosage form as such or in combination with a pharmaceutical carrier, for example in forms suitable for oral or parenteral administration, such as capsules, pills, tablets or injectable solutions.  Other therapeutically-active substances may be present.
Patent GB-1121162-A (GB)
Title: Method of homogenising molten glass
Inventor: ADAMS REGINALD VICTOR
IPC: C03B5/193
Filed: 1965-02-03
Abstract: A method of homogenizing molten glass comprises bubbling gas through the molten glass using a plurality of bubblers each operated intermittently, either all together or alternately in groups or rows so as to produce varying flow patterns in the molten glass and thus intermittently destroy stagnant zones present in each flow pattern. Examples of three parallel rows each of three bubbles and five parallel rows each of three bubbles are given, the alternate rows being switched on and off every 1 1/2 minutes, for example.  When all together are operated intermittently, the mixing of the flow patterns is by convection currents and/or by the flow of glass through the tank.
Patent GB-1179014-A (GB)
Title: Fork-Lift Truck
Inventor: TOPALOV ASSEN
IPC: B66F9/075
Filed: 1967-01-31
Abstract: 1,179,014. Preventing overturning. DSO BALKANCAR-. 31 Jan., 1967, No. 4754/67. Heading B7D. [Also in Division B8] A lift truck in which the load supporting fork may be projected beyond the side of the chassis (see Division B8) is provided with stabilizers each of which comprises an arm 24 pivoted to the chassis about an inclined axis 26 and provided at its outer end with a roller 18. The arm is adapted to be swung outwardly by an hydraulic ram 19 when the fork is projected to one side of the truck. -
Patent GB-268512-A (GB)
Title: Combined safety and isolating valve
IPC: F16K17/08
Filed: 1926-02-19
Abstract: 268,512. Webb, K. W. Feb. 19, 1926. Fluid - actuated valves.-A combined safety valve and isolating valve has twc lift valve members on a common spindle and is arranged so that when the isolating valve V<2> is closed by the opening of the safety valve V<3> it remains closed until re-opened by external means. In the form shown in the Figure the safety valve is fitted with a floating disc D to ensure a high lift and the device is loaded by a dead weight W. In a modification the device is loaded by a spring and the safety valve is fitted with a curved reaction lip in place of the floating disc. The isolating valve may be reopened by closing a stop valve on the inlet or by opening a bye-pass.
Patent GB-1103418-A (GB)
Title: Determination of gases
IPC: G01N7/04
Filed: 1966-02-03
Abstract: 1,103,418. Gas analysis. MINE SAFETY APPLIANCES CO. Feb. 3, 1966 [March 17, 1965], No. 4821/66. Heading G1B Apparatus for the volumetric determination of a gas in a mixture of gases comprises a first calibrated syringe 4 having a plunger 5, a conduit 16 containing a bed of solid absorbent 18 for the gas to be determined, a valve 8 having three ports 6, 10, 12 connected respectively to the syringe 4, one end of the conduit 16 and to the mixture of gases to be analyzed, the valve being operable to connect any two of its three parts, and a second syringe 28 having a plunger 29 connected to the other end of the conduit 16. In use, after equalization of pressures, the ports 10, 6 are connected and the plunger 5 withdrawn until it reaches a fixed stop 32 to draw in a known volume of the gaseous mixture. The ports 6 and 8 are then connected, the plunger 5 being used to force the gaseous mixture through the absorbent 18 into the syringe 28 and forcing out the plunger 29. This plunger is then used to return the gas to the syringe 4. After say two cycles the position of the plunger 5 indicates the volume of gas not absorbed, and the syringe 4 may be calibrated to read directly the percentage of the sample absorbed. Collapsible bellows may be used in place of the syringes if desired. The absorbent may be chromous chloride in silica gel for oxygen, calcium chloride or magnesium perchlorate for water vapour, soda lime or ascarite for carbon dioxide, or silica gel for ammonia or other basic gases.
Patent GB-470642-A (GB)
Title: Improvements relating to devices for use in rug making by hand
IPC: D04G3/00
Filed: 1936-02-18
Abstract: 470,642. Hand tufting-tools. BLACKHAM, A. A. Feb. 18, 1936, No. 4858. [Class 112] [Also in Groups VIII and IX] Tufted fabrics are made by pushing a needle 14 carrying wool or the like 17 through a backing, holding the loop 21 so formed in the fingers, pushing the needle through this loop to form a second loop 22, withdrawing the needle and pulling the loop 21 tight, Fig. 9. A series of these loops are made, the member 1 being pushed through before they are pulled tight, to ensure uniformity, Fig. 11. The former 1 is a U-shaped member with a sliding carrier 13 for a pivoted member 5 which has a razor blade 4. When the loops are formed, the carrier 13 is slid along the member 1 to cause the blade 4 to cut the loops. The pointed needle 14 is hollow to accommodate the wool and is threaded by the tool 23. Specification 436,104, [Group IX], is referred to.
Patent GB-526415-A (GB)
Title: Improvements relating to hair curling devices
IPC: A45D2/12
Filed: 1939-02-14
Abstract: 526,415. Hair-curlers. DEAN, J. D. Feb. 14, 1939, No. 4894. [Class 131] A hair curler comprises a former 19, Fig. 7, on which a curl is wound and a support 11, Figs. 1 and 7, for holding a spring grip 14 the support being movable relatively to the former to open the grip to engage the curl after which the curl is removed from the former with the grip closed on the curl. The former comprises a cylindrical member 19 slotted at 20, Fig. 6, and having collars 21 and. an integrally attached finger ring 22 carrying a projecting tongue 23. The grip carrying member comprises a rod 11 recessed at 12 to hold the grip 14 and carrying an undercut abutment 13 against which the closed end of the grip rests. On the side opposite the slot 12 is a groove 15 having two longitudinal parts united by an oblique part 17 and engaging a pin 26. In use the former is moved axially to the front end of the rod 11, the spring grip placed in position with its turned over end against the edge of the abutment 13. The ends of the hair positioned between the tube 19 and arm 23 and the device then rotated to form a curl. After rolling the tube 19 is moved axially towards the knob 18 causing its cam 24 to enter below the arms of the grips to open them and carry the lock between the arms. Just before the rear end of the former approaches the abutment 13 the grip 14 is rotated by the pin and slot mechanism 15, 20 to bring the opening 20 in register with the channel 12 releasing the upper arm of the grip from the arm 29 so that it clips on the curl. Further movement of the former allows the curl with the grips in position to be removed. Specification 517,237 is referred to.
Patent GB-563319-A (GB)
Title: Improvements in or relating to air brakes and/or lift increasing devices for aircraft
IPC: B64C9/32
Filed: 1943-03-26
Abstract: 563,319. Controlling aircraft. FAIREY AVIATION CO., Ltd., and BOOTH, J. P. March 26, 1943, No. 4930. [Class 41 A flap or the like constituting an air-brake and/or lift increasing device for aircraft, is adapted to be set in varying positions by means of a bellows which is subdivided into a number of sections each arranged to be connected to sources of positive and negative pressure derived from a venturi tube situated in the air stream whereby the bellows sections may be actuated cumulatively in succession. As shown, a wing a has a flap b hinged at g and actuated by a bellows divided into sections c, d, e by walls f also hinged at g, the expansion of the sections being limited by cords connected to the outer wall h. Pipes k, m, n extend from the sections to ports o, p, q in a slidable valve plate r operable by the pilot and controlling groups of ports 11-13 and 14-16 in valve chambers u, v connected respectively by pipes 19, 22 to a Pitot-tube 20 arranged in a venturi tube 21 and to an annular passage 23 connected by ports with the throat of the venturi tube. When the aircraft is travelling, the chambers u. v are thus respectively under positive and negative pressure. Normally, the valve plate v is at its extreme right-hand position with its ports in register respectively with ports 14-16 so that all the bellows sections are connected to the chamber v and the flap is thus held in its retracted position. As the valve plate is moved to the left the ports o, p, q successively register with ports in the pressure chamber u so that the bellows sections are also expanded successively. Movement of the valve plate to the right similarly effects the retraction of the flap step-by-step by connecting the sections to the chamber v. Specification 562,365 is referred to.
Patent GB-106109-A (GB)
Title: Improvements in Gun Apparatus for Concealed Aiming.
Inventor: PRESCOTT GEORGE
IPC: F41G1/30
Filed: 1916-04-05
Abstract: 106,109. Prescott, G. April 5, 1916. Sighting - accessories; machine and aiming rests.- To facilitate sighting a rifle from cover, and to allow of the eve of the marksman being at the same level as, but to one side of, the sighting-line, there is provided, according to the present invention, a mirror A fixed at an angle of 45‹ to the sighting-line and provided with a clip mount to engage the stock as shown. Recoil is taken up by means of an anchor B formed with an eye to engage the bayonet boss and a recess to engage the bayonet standard or sword bar.
Patent GB-759535-A (GB)
Title: Improvements in and relating to the manufacture of organic polymers
IPC: C08F2/00
Filed: 1954-02-19
Abstract: Polymers of ethylenically unsaturated organic monomers are polymerized, e.g. in bulk or aqueous media, in the presence of a sulphinic acid or of a salt of sulphinic acid and a quaternary base or salt.  If desired the sulphinic acid and a quaternary base may be the sulphinic salt of a quaternary base.  The polymerizable mix may also contain preformed polymers, fillers, pigments, phosphoric acid, hypophosphorous acid, boric acid, methacrylic acid, or an alkali, ammonium, or alkaline earth salt, e.g. ammonium chloride or sulphate. Specified sulphinic acids are lauryl, benzene, toluene and naphthalene sulphinic acids, and suitable salts are the alkali, alkaline and ammonium salts of these acids.  Quaternary salts and bases mentioned are di-isobutylphenoxyethoxyethyldimethylbenzyl ammonium hydroxide, tetrabenzyl ammonium chloride, tributylstearyl ammonium chloride, stearyldimethylbenzyl ammonium chloride, di-isobutylphenoxyethoxyethyldimethylbenzyl ammonium chloride, lauryldibutylbenzyl ammonium chloride, salts of ethylene-imine bases, and oxonium, stibonium, sulphonium, arsonium, and phosphonium free bases and salts.  Monomers specified are methyl methacrylate, and methacrylates of polyhydric alcohols such as glycol, glycerine, or pentaerythrite.  The preformed polymer may be polymethyl methacrylate and the pigments titanium oxide, or cadmium red.  In aqueous media gelatine may be used as the emulsifier.  The process may be used in dentistry.  Specification 744,280 is referred to.
Patent GB-671732-A (GB)
Title: Improvements in the production of ketones and acids
Inventor: REPPE WALTER
IPC: C07C51/14
Filed: 1950-02-28
Abstract: Aliphatic ketones and ketonic carboxylic acids are produced by causing carbon monoxide and water to act on olefines at elevated temperature and pressure in the presence of a complex cyanide of a metal capable of forming metal carbonyls or in the presence of a mixture of compounds capable of combining with each other to form such a complex cyanide.  Suitable catalysts are, for example, the complex cyanides of nickel such as K2(NiCy3) or K2(NiCy4), or complex cyanides containing in the cation such metals as sodium or lithium, calcium, barium or magnesium, zinc, cadmium or mercury, or which contain the ammonium radical or the radical of organic amines.  The catalysts may be used in solution or suspension or applied to carriers such as aluminium oxide, silicic acid gel or pumice stone. Suitable starting materials are olefines such as ethylene, propylene, butylene, butadiene, di-isobutylene or cyclic olefines such as cyclohexene, cyclo-octene, terpenes or styrene.  Olefines containing substituents, e.g. allyl chloride and unsaturated alcohols such as allyl alcohol, butene-3-ol-2 or 2-butene-2-diol-1.4 may also be used. The preferred temperatures for the reaction are in the range 100-250 DEG  C. and at a pressure of 50-200 atmos.  The reaction may be carried out continuously or batchwise.  Solvents, e.g. ethers, ketones or saturated hydrocarbons may be used.  The gases used may be diluted with, for example, nitrogen or methane.  In the examples carbon monoxide and water are reacted with ethylene under varying conditions to give high molecular polyketones, keto acids, propionic acid, unidentified acids and some lower ketones.
Patent GB-695901-A (GB)
Title: Improvements in or relating to telegraph receivers
Inventor: TERRY VICTOR JOHN
IPC: H03J7/16
Filed: 1951-03-02
Abstract: 695,901. Automatic tuning control systems. STANDARD TELEPHONES & CABLES, Ltd. Feb. 29, 1952 [March 2, 1951], No. 5112/51. Class 38 (iv). The tuning of a receiver for frequency shift telegraph signals is automatically controlled by deriving from the received signals a first voltage wave, Fig. 2 (a), alternating in polarity between marking and spacing signals, means for producing a second voltage wave, Fig. 2 (b), of opposite polarity and of amplitude equal to that of the first wave, and means for adding the two waves to produce a control voltage, Fig. 2 (c), which is used to adjust the tuning of the receiver to compensate for adventitious variations of the transmitter frequencies, or of the frequency of a heterodyne oscillator at the receiver. The incoming waves received on an aerial 1, Fig. 1, are amplified at 2 and fed to a mixer 3 to which oscillations from a local source 4 are also supplied. The two beat frequencies thus produced are amplified and limited at 5, 6 and passed to a discriminator 7 which is centred on the mean beat frequency, giving an output to the relay 8 of the form shown in Fig. 2 (a). For the period T1 the mark and space signals are of equal amplitude, but during the periods T2, T3, owing to mis-tuning at the transmitter or receiver, a D.C. voltage is introduced. During the period T4 when signalling has stopped, a mark signal is continuously transmitted in order that the receiver will respond to a space signal when traffic recommences. The discriminator output is applied to operate a reversing switch 10 which alternately supplies from a D.C. source 9 fixed positive and negative signals, Fig. 2 (b), in the rhythm of the received signals but of opposite polarity thereto. The two voltage waves, Figs. 2 (a) and 2 (b), are fed through resistors 11, 12 to a combining resistor 13 across which appears the control voltage. Fig. 2 (c). This is amplified at 14 and used to control a motor 15 which drives a tuning element 16 of the local oscillator 4, thus adjusting the two beat frequency outputs until they are accurately spaced on opposite sides of the balance frequency of the discriminator. The control is also effective during non-signalling periods so long as the " mark " frequency is continuously radiated.
Patent GB-934281-A (GB)
Title: Production of polymers from olefins
IPC: C08F4/659
Filed: 1961-02-13
Abstract: Olefins are polymerized in the presence of a catalyst comprising (1) an organometallic compound of a transition metal of general formula RnMeXv-n wherein R is an indenyl or fluorenyl radical, unsubstituted or alkyl substituted or aryl substituted; Me is a transition metal of Group IV or V of the Mendel<\>aeeff Periodic Table; X is a halogen, an alkoxy, aryloxy or cycloalkoxy group containing 1 to 12 carbon atoms or a radical of an organic acid; n is 1 or 2 and v is the maxium valency of the transition metal; and (2) an alkyl, aryl, haloalkyl or haloaryl derivative of a metal of Group Ia, IIa, IIb or IIIa of the Mendel<\>aeeff Periodic Table.  The olefin may be ethylene or propylene.  The transition metal compound may be an ethoxy, butoxy, isobutoxy, cyclohexyloxy or nonoxy indenyl or fluorenyl titanium, zirconium or vanadium.  The Group I to III metal compound may be butyl lithium, amyl sodium, diethyl magnesium, ethyl magnesium chloride, ethyl magnesium bromide, n-butyl magnesium chloride, phenyl magnesium bromide, triethyl aluminium, triisobutyl aluminium, diethyl aluminium chloride, diethyl aluminium hydride, or lithium aluminium tetraethyl.  In place of the transition metal compound per se the reaction product of titanium tetrabromide, vanadium pentachloride or zirconium tetraiodide with an indenyl or fluorenyl alkali metal or Grignard compound may be used. Polymerization may be effected in an inert solvent, e.g. benzene, heptane or cyclohexane.  Examples describe the polymerization of ethylene in the presence of catalysts comprising (1) diindenyl titanium dibromide and triethyl aluminium, (2) the reaction product of tetranonoxy titanium and p  indenyl sodium and ethyl magnesium bromide, (3) the reaction product of tetrabutoxy titanium and indenyl lithium and ethyl magnesium bromide, (5) diindenyl titanium diiodide and triethyl aluminium, (6) the reaction product of zirconium tetrachloride and indenyl lithium and triethyl aluminium, and (7) the reaction product of tetrabutoxy titanium and indenyl lithium and triethyl aluminium; and the polymerization of propylene in the presence of a catalyst comprising (4) difluorenyl titanium dibromide and triethyl aluminium.