baber/WOPTO huggingface dataset:
Patent GB-497712-A (GB)
Title: Improvements in or relating to electrical systems employing secondary batteries
IPC: B60L11/18
Filed: 1937-06-21
Abstract: 497,712. Charging and discharging batteries. WEST & CO., Ltd., A., and DAVID, O. T. June 21, 1937, No. 17196. [Class 38 (iv)] In a charging system for a battery which may be connected to a load, means responsive to the charging current prevent the connection of the load whilst the battery is being charged. A battery B supplying a motor A on a vehicle through contactor controlled resistances, may be charged by connecting mains to a plug S whereby the charging current flowing through coils 2W5, 1W5 operates a contact c5 in the supply to the motor controller C. The controller C normally controls windings W1 ... W4 of contactors c1 ... c4 so that connection of the charging source prevents effective operation of the controller C. During normal running, the coil 1W5 operates on its contact c5 as an overload relay.
Patent GB-572512-A (GB)
Title: Improvements in or relating to stuffing boxes and like seals
IPC: F16J15/30
Filed: 1944-01-04
Abstract: 572,512. Stuffing-boxes. MORGAN CRUCIBLE CO., Ltd., COLBECK, A. G. A., and AUGOOD, E. B. Jan. 4, 1944, No. 17296/42. [Class 122 (v)] In a shaft &c. packing comprising a split or segmental ring 2 surrounded by a deformable packing 4 adapted to be adjustably compressed, a split ring 3 is interposed between the ring 2 and deformable packing to prevent access of the latter to the gap or gaps in the ring 2. The ring 2 may be eccentrically mounted on the shaft and the ring 3 may be eccentrically mounted on the ring 2. Two such sealing rings may be arranged side by side with staggered gaps between resilient rings 6; washers 5 being interposed to prevent the resilient material entering the ring gaps. Adjustable pressure is applied to the rings 4, 2 respectively by spring loaded glands 8, 7. Locking pins 16, 13 respectively prevent relative movement between, adjacent rings 2 and between the rings 2 and 3.
Patent GB-256201-A (GB)
Title: Multiple press for sole-laying, and like machines
IPC: A43D25/06
Filed: 1926-07-10
Abstract: 256,201. Maschinenfabrik Moenus Akt.-Ges. July 30, 1925, [Convention date]. Sole-laying.-A multiple press for sole laying and like machines having a plurality of air bags arranged on a rotatable carrier, is characterized in that the air bags once brought into communication with the air supply remain connected therewith until they are mechanically released, when the work piece may be removed. If any leakage occurs at the joints, local pressure is kept constant from the main source of supply. A number of air bags 12, Fig. 1, are supported on a rotatable table 3 ground to an airtight fit on a trunnion 2. Compressed air is supplied by a pipe 6 to a circular channel 5 always in communication with radial channels 7 in the table 3. Each channel 7 is controlled by an airtight spring- pressed valve 9, which can be drawn down by a dog 18 operated by a treadle 52. As the valve is depressed, a valve stem 20 with a slot 22 is engaged by a swing detent 21 and held open, keeping the bag 12 in constant communication with the main air supply through the valve 9, passage 10 and tube 11. Rotation of the table does not affect the connection, as the chanel 7 constantly communicates with the ring channel 5. When it is required to release the pressure in the bag 12, a treadle 27 is operated to press upwards a rod 26 against a spring valve 23. The rod 26 also operates a pivoted lever 29 to shut the valve 9 in advance of opening the valve 23.
Patent GB-393093-A (GB)
Title: Improved manufacture of diamines
Filed: 1932-06-21
Abstract: Aliphatic diamines are produced by reacting upon the dihalides of olefines having not more than 8 carbon atoms with ammonia and a metal salt or oxide capable of forming complex compounds with aliphatic amines, and then treating the product for instance with caustic soda to liberate the diamine.  The ammonia is preferably used in small excess over 4 molecules of ammonia to one of olefine dihalide. Suitable metal compounds are the chlorides, oxides and sulphates of relatively heavy metals such as copper and zinc.  In an example ethylene dichloride is reacted with concentrated ammonia solution and cuprous chloride zinc chloride, copper-sulphate or zinc oxide in an autoclave at 95 DEG  C. at 150-300 lbs. pressure per square inch, the product being then treated with a small excess of sodium hydroxide and distilled to obtain the diamine.  The temperature of the reaction should not exceed 120 DEG  C.
Patent GB-801410-A (GB)
Title: Method of coating sheet metal with plastic and sheet metal provided with a plastic coating according to this method
IPC: B32B15/08
Filed: 1956-06-07
Abstract: Adhesive compositions for uniting plastic sheets to metal sheets comprise solutions of polymers, e.g. vinyl acetate-vinyl chloridemaleic anhydride copolymers mixed with polybutyl methacrylate and polyisobutyl methacrylate or with rubbery butadiene-acrylonitrile copolymers, in solvents comprising mixtures of butyl acetate, methyl, ethyl or isobutyl ketones, toluol, propylene oxide and ethyl acetate. These adhesives may also contain (1) chlorinated biphenyl resins, (2) nitrile rubbers, (3) partially hydrolysed polyvinyl chloride-acetate copolymer resins, (4) drying and non-drying oil-modified alkyd resins, (5) pigments, e.g. titanium dioxide, chromium oxide, mica, silica and talc.  The plastic sheet may be of polyvinyl chloride, a copolymer of vinyl chloride with vinylidene chloride or vinyl acetate, or vinyl chloride polymers mixed with acrylonitrilebutadiene copolymers, and may be pigmented and plasticised or unplasticised. In Example (1) the sheet comprises polyvinyl chloride, tricresyl phosphate, dioctyl phthalate, lead stearate, high molecular weight alcohol wax (i.e. a wax comprising one or more alcohols having a molecular weight which exceeds 350, e.g. glycerine waxes, myricyl waxes and cetyl alcohol waxes), lead silicate, lead phosphite, stearic acid and pigment (e.g. titanium dioxide).  In Example (2) the sheet comprises polyvinyl chloride, polyvinyl alcohol, carnauba wax, dibasic lead phosphite (2PbO.PbHPO3. 1/2 H2O), tribasic lead sulphate (3PbO.PbSO4.H2O) and pigment (e.g. titanium dioxide).
Patent GB-220613-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B41/02
Filed: 1924-07-24
Abstract: 220,613. Leissner, H. F. Aug. 17, 1923, [Convention date]. Cylinders receiving liquid fuel.-Air compressed in the pump 1 vaporizes fuel dropped into the cup 7 and enters w:.th it through the passage 5 into the power cylinder 2. The passage 5 may be tangential to the cylinder 2. The pump and power pistons are connected to the lever 12 carried on the cross-head 14, two connecting rods 15, 16 being used. The mixture is ignited as the valve 6 between the engine and pump cylinders closes.
Patent GB-1175405-A (GB)
Title: Improvements in or relating to Modulation Circuit Arrangements
IPC: G01R29/06
Filed: 1967-04-18
Abstract: 1,175,405. Modulators. TELEFUNKEN PATENTVERWERTUNGS-G.m.b.H. 18 April, 1967 [25 May, 1966], No. 17723/67. Heading H3R. [Also in Division G1] A modulator for producing a calibrated modulated output with a modulation index of less than 0À1 comprises a coupling device K1 for diverting some of the energy from the carrier source 1 along a branch path comprising one or more attenuators 31 and 32, a modulator 2, and a phase shift device 4, the branch path being coupled back to the main path through a second coupling device K2. In Fig. 3 the main path is coupled through the device K2 to a quadratic detector 7 which receives the output of the branch line as a second input and produces a deflection on the meter 8 proportional to the difference vector of the two inputs. If the loss in the coupling device K2 is known, e.g. 15db, the damping members 32 and phase shift device 4 can be adjusted to give a zero reading on the meter 8, when the sideband level at the output device 6 will be 30db below the carrier. If the maximum level required is 50db the calibrated attenuator 31 is adjusted to 0À915db, the reading of meter 8 is noted, the attenuator 31 is returned to zero, and the modulator 2 is adjusted to give the same reading of meter 8. Any further lowering of the sideband level is now effected by the attenuator 31. In a modified system, Fig. 1 (not shown), units 7, 8 and 32 are omitted and the modulation index is varied by adjustment of the modulator 2 and/or the attenuator 31. The modulator may be an amplitude or a frequency modulator, and the output. is amplitude or frequency modulated according to the setting of the phase shift device 4. The apparatus may be used for calibrating noise measuring devices. If the noise of a microwave oscillator is to be measured it may be connected as the carrier source 1 and the output device 6 is a noise measuring device which is used to determine the change in attenuation in the branch path required to double the noise of the oscillator.
Patent GB-583996-A (GB)
Title: Improvements in or relating to electrical multivibrator circuits
IPC: H03K3/08
Filed: 1944-09-15
Abstract: 583,996. Pulse generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. Sept. 15, 1944, No. 17729. [Class 40 (v)] In a multi-vibrator circuit including a resonant circuit 4, 5 to stabilise the operation, the valves 1, 2 are so connected as to provide negative feed-back at the natural frequency of the resonant circuit. The anode load resistance for valve 2 is connected to a tap on inductance 4, the control grid of valve 1 being fed from the end of the inductance remote from the anode of valve 2. Since this connection provides negative feed-back, the tendency for the multi-vibrator to oscillate at the frequency of the resonant circuit is reduced. Synchronizing signals are applied to the grid of valve 1 and output pulses taken from the cathode of valve 2. In a modification, Fig. 2 (not shown), the resistance is connected to the junction of two condensers, replacing condenser 5, a high resistance being connected to the anode of valve 2 to complete the D.C. connection. Specification 583,262 is referred to.
Patent GB-1275231-A (GB)
Title: Process for isolating pure monochloroacetic acid from a chlorination mixture
Inventor: BAADER HERBERT
IPC: B01D9/00
Filed: 1970-04-14
Abstract: 1275231 Monochloroacetic acid KNAPSACK AG 14 April 1970 [18 April 1969] 17746/70 Heading C2C Monochloroacetic acid is isolated from the reaction mixture obtained by the chlorination of acetic acid with chlorine gas at elevated temperature and in contact with an acetic anhydride and/or acetyl chloride catalyst by cooling to room temperature in a crystallizer the parts of which coming into contact with the reaction mixture are made of a polyolefin or polyhaloolefin combining resistance to monochloroacetic acid and the other components of the reaction mixture with thermal stability up to at least 100‹ C. and a maximum thermal conductivity of substantially 0À25 kcal/mh.‹ C. Crystallizer materials specified are polypropylene and polytetrafluoroethylene.
Patent GB-145623-A (GB)
Title: Improvements in the production of yeast
IPC: C12N1/18
Filed: 1920-06-29
Abstract: 145,623. Wohl, A., and Scherdel, S. Jan. 15, 1915, [Convention date]. Yeast.-In the production of bakers' yeast by an aeration process the organic nitrogen in the yeast food added to the nutrient medium is replaced by more than 10-70 per cent of inorganic nitrogen in the form of ammonium salts. For example, to 100 metric cwt. of a mash containing 40 per cent malt sprouts, 20 per cent green malt, and 40 per cent maize, is added 10 metric cwt. of malt sprouts and 150 kgs. of ammonium sulphate. The ammonium salts are preferably added gradually. Specifications 512/80, 5618/82, and 21011/96 are referred to.
Patent GB-1167731-A (GB)
Title: Mineral mining machines and steering equipment therefor
Inventor: COOK HUMPHREY GEORGE
IPC: E21C35/10
Filed: 1966-04-22
Abstract: 1,167,731. Mineral-mining machines. COAL INDUSTRY (PATENTS) Ltd. 23 March, 1967 [22 April, 1966], No. 1779.8/66. Heading E1F. Steering equipment for a mineral-mining machine 1 involves a mechanical, electrical or ultra sonic tracer arrangement 16 responsive to change in the distance between a mine surface S, e.g. a roof, and the machine 1, the tracer arrangement 16 operating through suitable control means, such as 6, 7, 8, 9, a ram that is so incorporated in the machine as to be able to maintain the distance between the surface and the machine at a constant determined by the chosen characteristic of the variable characteristic of the control means. Preferably, the tracer 16 reciprocably operates an arm 6 carrying cams 7 operating switches 8, 9 that control expansion and contraction of the ram. The switches 8, 9 are mounted in a housing 20 slidably mounted on the machine and reciprocable relative to the arm 7 through a Bowden cable by trip levers 13A, 13B cooperating with manually settable bell crank levers 10A, 10B disposed along the mine face and set in accordance with the required operating characteristics desired of the control means as the machine is moved along the face.
Patent GB-750216-A (GB)
Title: Improvements relating to the manufacture of articles by composite casting
IPC: B22D19/16
Filed: 1952-07-15
Abstract: 750,216. Casting composite articles. MILLARS MACHINERY CO., Ltd., and LEECH, L. A. Oct. 13, 1953 [July 15, 1952], No. 17827/52. Drawings to Specification. Class 83 (1). Rollers, cams, or like rotary members having a friction-resisting rim surface are cast by a known method of dual casting, in which partition means are located in the mould to separate the different qualities of metal being simultaneously poured. As applied to the casting of a thrust-roller for a rotating drying- drum, a flanged wheel, and a rotary cam for agitating the loader-bucket of a concrete mixer, all have an outer surface of wear-resisting iron, e.g. white iron, on a body of inferior iron, e.g. grey iron. The partition is preferably of a metal or alloy which will aid the welding action between the two metals and of a gauge such that fusion will not be effected before the pouring is completed, e.g. 20 gauge copper. The partition may be made from a perforated sheet, the perforations being filled or closed with a readilyfusible material, or from three sheets, the two outer ones being perforated. In a modification, the partition is made from layers of different materials such that only the outer layers fuse and will assist in the fusing of an inner layer to each part of the casting.
Patent GB-1229022-A (GB)
Title: Process and apparatus for the separation of two-or multicomponent mixtures by multi-stage fractional crystallization
IPC: B01D9/02
Filed: 1968-04-16
Abstract: 1,229,022. Progressive purification. METALLWERK A.G. BUCHS. 16 April, 1968 [14 April, 1967], No. 17849/68. Heading B1G. A process for progressive purification of a constituent of a liquid mixture in a plurality of crystallization stages employs a crystallization and melting circuit comprising a crystallizer A and a heater B, the circuit being fed successively with liquid from each of a plurality of vessels (10 as shown) containing liquids of progressively increasing concentration with respect to the constituent. The circuit may also include a vessel E for washing liquid. The crystallizer A is an indirect heat exchanger having a separate coolant circuit and a crystal layer forms on the cooled surfaces of the heat exchanger. The liquid being treated may flow over the cooled surfaces as a film or stream. The crude liquid mixture is fed to vessel I, mother liquor is withdrawn from vessel F, and the desired purified constituent is finally withdrawn from vessel G. At an intermediate stage in the process, liquid from vessel n is circulated through crystallizer A to. form a crystal layer, the resulting mother liquor being discharged to vessel n-1. Further liquid of the same composition may then be passed from vessel E to crystallizer A after heating in heater B, thereby washing residual liquid from the crystal layer and dissolving a portion of the layer, and the wash liquid discharged to vessel n. Liquid from vessel n+I is then circulated through crystallizer A after heating in heater B, thereby dissolving the crystal layer, whereafter heating by heater B is discontinued and a further crystal layer is formed. A smooth layer may be built up by repeated alternate crystallization and partial redissolution. After completion of the stage, residual liquid on the surfaces of the heat exchanger may be cooled to form crystal nuclei before commencement of the next stage. The plurality of stages may be repeated to form a continuous process.
Patent GB-293747-A (GB)
Title: A circuit arrangement for the transmission of messages over telephone lines
IPC: H04M11/06
Filed: 1928-06-20
Abstract: 293,747. Siemens & Halske Akt.- Ges. July 11, 1927, [Convention date]. Automatic exchange systems.-A subscriber's line over which fire-alarm &c. signals can also be sent is equipped at the substation and at the exchange with balanced bridges Dr including condensers so that the a and b circuits are metallically separate. On the subscriber calling, relay R is energized over its upper winding, wire a, and coil Dr2 to set the preselector VW in action, and during conversation the calling line is fed with current from relay A over the same circuit, relay B being energized in series with coil Dr6. To send an alarm, contact m is closed and relay A1 is intermittently energized to close a circuit over the b wire to energize relay S, which flashes a lamp L.
Patent GB-217447-A (GB)
Title: Improvements in or relating to carburetters for internal-combustion engines
IPC: F02M9/06
Filed: 1923-07-11
Abstract: 217,447. Brown & Barlow, Ltd., and Brown, C. July 11, 1923. Spray carburettors.-A main nozzle, a pilot nozzle and an auxiliary nozzle are situated in a passage across which control members are caused to slide, one of the nozzles being controlled by a needle valve mounted with lost motion in one of the control members. Air enters at b and is controlled bv a throttle member a and also by a member c sliding therein. The main, pilot and auxiliary nozzles are shown at e, f, g respectively, and the nozzle g is controlled by a needle valve k, a shoulder k<1> on which is adapted to be struck by the member a, Fig. 3, or member c, Fig. 7, after a predetermined movement of said members. In one modification, the nozzles e, g may be close together in one structure, and in another the nozzles e, g of Fig. 3 are interchanged, the member c being then arranged angularly in the member a to accommodate the needle valve k.
Patent GB-1348551-A (GB)
Title: Plate-type air valve carburetor
IPC: F02M19/00
Filed: 1971-05-28
Abstract: 1348551 Spray carburettors BENDIX CORP 28 May 1971 [8 June 1970] 17938/71 Heading F1B A carburettor has a valve 18 responsive to air flow in a passage 12 to control fuel delivery to the air stream and rotatable about pivot 20, whereby an edge 24 of the valve moves from close to the passage wall to upstream of the pivot and is characterized by a baffle 22 to assist the valve to move to the wide open position by generating a low pressure zone in the region 26. The baffle 22 may be in the form of a curved inverted isosceles triangle, Fig. 4 (not shown).
Patent GB-765732-A (GB)
Title: Improvements relating to pressure exchangers
Inventor: JENDRASSIK GEORGE
IPC: F04F13/00
Filed: 1951-06-25
Abstract: 765,732. Jet propulsion plant. JENDRASSIK DEVELOPMENTS, Ltd. June 23, 1952 [June 25, 1951], No. 17948/54. Divided out of 765;730, [Group XXVIII]. Class 110 (3). [Also in Groups XII and XXVIII] The exhaust from the low pressure scavenge duct of a pressure exchanger (see Group XXVIII) may be used for jet propulsion. The highpressure stage comprises a closed duct system including a burner. The low-pressure scavenging is effected by removing some of the gas content from a cell of the pressure exchanger approaching the position in which fresh gas is supplied, and using this gas to encourage the scavenge flow. The cell is opened to the exhaust duct 28 before the fresh gas supply duct 24 is reached. The duct 28 may be formed with a nozzle 20<SP>1</SP> to induce the flow from the other cells. In a modification useful gas may be tapped from the cells intermediate the high- and low-pressure stages for assisting the scavenge flow. Specification 765,734, [Group XXVIII], is referred to.
Patent GB-179932-A (GB)
Abstract: 179,932. Brauen, G. Isliker-. May 10, 1921, [Convention date]. Boohbinding - machines.-In a machine for binding books, pamphlets and the like, through the single sheets of which one or more threads have been previously drawn, a rotatable twisting- member is provided to catch and twist the ends of the threads projecting in a row from the back of the book or the like; a feeding-apparatus is also provided which advances a block of books over the twisting-member and automatically returns to its starting position to receive another block. As shown in Fig. 11, a number of suitably threaded book blocks 61 with distance pieces 63 are placed upon a plate 31 against a buttpiate 38 with their threads projecting downwards. The butt-plate, connected to a threaded spindle 37, is advanced by the rotation of an internallythreaded sleeve 36, and the book blocks are fed forward over a slot containing a wooden block 55 carrying a felt pad 56 to strip the threads backward. Alternatively the threads may be drawn backwards by an air-suction device. The advancing threads are engaged by a twisting- member 11 mounted upon a hollow rotating spindle 7 within a bracket 2. A thread 60 fed from a bobbin 23, Fig. 1, upon a bracket 22 passes through a guiding-hole in a rod 15 and thence through the hollow spindle 7 which has a grooved driving-pulley 12 at its lower end. The frame 1, 32 of the machine supports a driving-shaft 17 carrying a driving-wheel 19 and pulleys 18, 33, 34. The pulley 18 is arranged to drive the pulley 12, and the pulleys 33, 34 drive pulleys 43, 42 respectively, loosely carried upon the sleeve 36. A central couphng-piece 46 slides upon a key 54 on the sleeve 36, and by means of a pivoted forked arm 48 is arranged to engage either of the pulleys 33, 34. An arm 39 attached at right-angles to the butt-plate 38 has collars 40, 41 screwed upon it on either side of a piece 53 attached to the pivoted-arm 48. The butt-plate is advanced, when the coupling-piece 46 engages the pulley 42, until the rear book block is in the position 61<1>, when the collar 41 strikes the piece 53 and throws members 46, 43 into engagement for the reverse motion which continues until the collar 40 strikes the piece 53; this puts the coupling- piece into a neutral position to allow more book blocks to be placed upon the plate. The twined threads are glued in passing over a wheel 62 in contact with a glue-conveying sheave 26 dipping into a glue-pan 29 heated by an electrical device W. In a modification, the twisting member comprises a hollow tube having end teeth cut in its periphery, instead of the wire spiral shown. The central thread 60 may be dispensed with if necessary. The machine may comprise four twisting-members with their accessories, the spindles being arranged in pairs and provided with engaging pinions to produce rotation in opposite directions.