baber/WOPTO huggingface dataset:
Patent GB-231928-A (GB)
Title: Improvements in protective apparatus for use in connection with the electric pumping machinery replenishing the sealing liquid in dry gasholders
IPC: F17B1/04
Filed: 1924-01-03
Abstract: 231,928. Marks, E. C. R., (Maschinenfabrik Augsburg-N³rnberg Akt.-Ges.). Jan. 3, 1924. Actuating by electric motors ; disconnecting actuating- mechanism.-In an electrically - driven pump for pumping the sealing liquid for gas-holders, a centrifugal clutch e is in. terposed between the three phase electric motor a and the pump d, so that, at starting, the load does not come on until the motor has attained normal speed. The clutch may consist of weights pivoted to arms driven by the motor and adapted at a certain speed to engage a casing connected to the pump. Current is conveyed to the three branches 1, 2, 3 of the circuits through three spring or weight loaded fuses in the box b, the fuses being of such dimensions that they will carry momentarily the large starting current but will blow on an undue increase in the working current.
Patent GB-165881-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B75/30
Filed: 1920-01-05
Abstract: 165,881. Still, W. J. Jan. 5, 1920. Two-stroke-cycle engines; cylinders, construction of and cooling.-In engines in which each cylinder develops more than 500 h.p., the cylinders are either annular in cross-section or are connected together to provide a common combustion space, the pistons of the connected cylinders being secured to a common cross-head. In both constructions water jackets surround the cylinders. According to the construction shown in Fig. 2, concentric annular pistons 16, 17 are connected together to reciprocate in annular ccmbustion spaces x, y, respectively, which communicate with each other at their ends remote from terminal inlet and exhaust ports 20, 21. Cooling-jackets 24 surround both combustion spaces. According to a modified construction, one annular piston only is used. A further modified construction is described in which a series of pistons of the usual form is secured to a common cross-head the cylinders being in open communication with one another at their combustion ends and disposed in a ring.
Patent GB-269454-A (GB)
Title: Improvements in feed pumps for internal combustion engines
IPC: F02M59/34
Filed: 1927-01-05
Abstract: 269,454. Bellem, L. H. L. Jan. 5. 1927. Regulating delivery by opening and closing suction valves; materials, special, valves, arrangement of.-In a fuel pump of the kind in which the plunger at the beginning of each stroke carries the barrel d frictionally with it until it is arrested by the valve seat c<2> or an adjustable stop i, a friction lining g fixed in the lower part of the barrel engages the plunger e and is pressed thereon by an elastic member g<1>. The members g, g<1> may be split sleeves of fibre and metal respectively; or the lining g may consist of two semi - circular members pressed against the plunger by wavy spring blades. The valve seat c<2> is made of fibrous material. The stop i is adjustable by rack and pinion to vary the travel of the barrel and thereby the amount of fuel delivered. The barrel is mounted in a reservoir a<1> fed with fuel by a port b<1>.
Patent GB-1003456-A (GB)
Title: A process for the sterilisation and pasteurisation of liquids with the use of cavitation
IPC: A23L5/30
Filed: 1964-01-03
Abstract: 1,003,456. Sterilizing liquids. F. SCHULZ. Jan. 3, 1964 [Jan. 11, 1963], No. 339/64. Heading A2D. A method of sterilizing or pasteurizing liquids such as milk, milk products including coffee, cocoa and chocolate, liquids for producing fruit juice, and liquid foodstuffs, comprises the steps of subjecting the liquid to a pressure of at least 2 atmospheres, preheating it to a temperature not exceeding 65‹C., subjecting it to a cavitation treatment carried out in at least one stage with a pressure consumption of 1-10 atmospheres per stage and under a back pressure of 2-10 atmospheres acting on each stage, and then partly cooling the liquid, and the liquid is subjected before and/or after the cavitation treatment to a heating to a temperature not exceeding 140‹C. and at a pressure of at least 2 atmospheres in at least one stage and is homogenized before one stage of the cavitation treatment. In the sterilizing or pasteurizing of milk and liquid milk products the liquid is preheated to a temperature of between 30‹C. and 65‹C. and is heated to a temperature not in excess of 135‹C. In the case of sterilization, the treated liquid is preferably pressurerelieved and degasified before it is filled into containers, and is cooled, after such pressure-relieving and degasifying, to the temperature at which it is to be filled into the containers.
Patent GB-1412811-A (GB)
Title: Moulding machines
IPC: B29C41/00
Filed: 1973-01-03
Abstract: 1412811 Injection moulding chains ETABS VAPE SA 3 Jan 1973 [30 March 1972] 426/73 Heading B5A [Also in Division B3] A machine for moulding a chain from a plastics material or a light alloy comprises a plurality of multi-part moulds A-H arranged around a rotatable hub 6 for movement in succession to a position in front of an injection plate 2 which holds the mould parts together, each mould comprising cavities for moulding several interlocking links and a part of a link, the mould parts being held together as the hub rotates, to allow the chain to cool, and then separated after one half rotation to allow the chain to be removed. As shown, each mould comprises four parts 9, 10, the outer mould parts 10 being attached to spindles 15, 15<SP>1</SP> carrying rollers 16. The rollers 16 are adapted to engage cams 17, 18 mounted on flanges 4 of the machine frame so as to separate the mould parts 10 at positions F and G. The mould parts 9 have feet 12 engaging in transverse grooves 14 in the hub, the outer and inner mould parts being guided relative to one another by pins 19. Mould closing is effected by downward movement of the injection plate 2, whereby members 23 mounted on pegs 24 are pushed together by stops 20 on the plate 2 and pressed against the sides of the mould. The mould A is shown as having three inlets corresponding to three injection orifices 3 in the plate 2. A multicoloured chain may be produced by plugging certain orifices 3 at different times. In another embodiment a single central orifice 3 is provided as shown for moulds B and H.
Patent GB-1164861-A (GB)
Title: Improvements relating to Vehicle Suspension Systems
Inventor: HIRST ARCHIE JOHN
IPC: B60G17/033
Filed: 1966-01-05
Abstract: 1,164,861. Fluid suspensions. METALASTIK Ltd. 28 Dec., 1966 [5 Jan., 1966], No. 431/66. Heading B7D. [Also in Division F2] A vehicle suspension system comprises interconnected primary fluid springs 2 and 21 at a front and a rear wheel suspension and a secondary fluid spring 38 mounted to act in series with one of the primary springs but at an individual pressure, said one primary spring having an effective area which increases with compression. As shown, the springs (see also Division F2) are rolling diaphragm air springs; the effective areas of the front primary springs 2 remain constant, although they may increase, with upward deflection of the wheels 17, the effective areas of the rear primary springs 21 increase with upward deflection of the rear wheels 34 and the effective areas of the secondary springs 38 remain constant or increase with upward deflection of the wheels 34. The law of area increase may be linear, exponential or logarithmic, the variation of area providing a pitching resistance which varies little with load. The vehicle height is maintained constant by levelling valves 53 at the front wheels which each supply the primary springs on that side of the vehicle through an interconnecting conduit 49 and by levelling valves 55 at the rear wheels which supply the corresponding secondary springs 38 through conduits 56. The levelling valves may incorporate time delay means. The springs 38 communicate through conduits 52 with tanks 51 to increase their effective volumes. The adjacent piston and cylinder of each pair of rear springs are interconnected by a strut 48 and the other pistons and cylinders are rigidly or pivotally mounted on their respective wishbone arms and chassis mountings, guides, such as shock absorbers, being provided in the latter case.
Patent GB-885245-A (GB)
Title: Theft deterrent for paper securities
IPC: E05G1/14
Filed: 1960-01-06
Abstract: 885,245. Safes. STEVENS, D. C. Jan. 6, 1960, No. 435/60. Class 44. A theft deterrent in co-operation with a safe or strongroom for paper securities comprises means for applying a distinctive marking to at least a part of paper securities within the safe or strongroom, and means for initiating the application of the marking when an attempt is made to steal the securities. As shown, as applied to a safe 1, spray nozzles 6 are located above shelves 4 for trays 3 of banknotes and are connected to a reservoir 8 containing an indelible dye and a capsule 10 of gas under pressure. Inner and outer walls 13, 14 of the safe and of its door define volumes 12 and 17 which are connected to a compressed air cylinder and a pressure actuated relay 22. An initiation device 24 comprising an electrically ignitable explosively actuated plunger 23 is operated by a battery 26 to drive the plunger -into a frangible seal 11 of the capsule 10 whenever the pressure or the volumes 12 and 17 falls below a value determined by the pressure actuated relay 22 during a time interval determined by a time and delay switch 25. In operation, compressed air is released from the cylinder 21 to the volumes 12 and 17 immediately prior to the safe door being closed, the switch 22 is set to correspond to the period during which the deterrent is required to be effective and the predetermined delay set for about 15 minutes. Any successful attempt to thereafter open the safe would reduce the pressure in volumes 12 and 17 thereby to actuate the switch 22 and fire the plunger 23. The invention is applicable to portable money bags, cash boxes and strong rooms and the initiating device may be responsive to vibrations, breaking of wires, obstructing beams of electromagnetic radiation or alteration in properties of resonant circuits.
Patent GB-523429-A (GB)
Title: Improvements in or relating to the separation of materials of different specific gravities
IPC: B03B5/38
Filed: 1939-01-06
Abstract: 523,429. Wet separating processes. GENERAL ELECTRIC CO., Ltd., GRIFFITHS, F. L., and MEYER, F. C. Jan. 6, 1939, No. 503. [Class 82 (ii)] Apparatus for the separation of materials of different specific gravities in a suspension of sand or the like, for example for cleaning coal, by methods of the type described in Specification 119,038, [Class 82 (ii)], comprises a conical vessel 1 having an overflow 3 at the top for the floating material, a discharge 4 at the bottom for the heavy material, and an intermediate tangential outlet 5 leading to a pipe 6 and adjustable weir 13. Water is admitted through jets 14 at two levels below the outlet 5 and at one level above, whereby the density of the suspension is maintained progressively greater from top to bottom. A rotary agitator 11 and jets 12 are provided whereby the middlings are directed to the outlet 5 and up the pipe 6, the floating material and middlings being delivered to separate compartments of a draining screen 8. In a modification, mechanical means such as an elevator may be provided in the pipe 6 instead of, or in addition to, the jets 12. U.S.A. Specifications 1,392,400 and 1,545,636 also are referred to.
Patent GB-1259921-A (GB)
Title: Tailored surfactants for use in forming oil-in-water emulsions of waxy crude oil
Inventor: SIMON RALPH
IPC: C09K23/00
Filed: 1970-01-05
Abstract: 1,259,921. Oil in water emulsions. CHEVRON RESEARCH CO. 5 Jan., 1970, No. 507/70. Heading B1V. [Also in Division C3] Oil-in-water emulsions of waxy crude oils are obtained using composite surfactants comprising a mixture of (1) a surfactant of the general formula: where n is at least 30, and (2) a surfactant of the general formula: where n is 8 to 12. A third surfactant which is also preferably present has the general formula: C 13 H 27 O(CH 2 CH 2 O) n-1 CH 2 CH 2 OH where n is 8 to 12. The proportions are preferably 40 to 60% by vol. of (1), 20 to 35% of (2) and 10 to 25% of (3). The surfactant mixture is usually added to water and the aqueous solution mixed with the oil. The initial concentration of surfactant in water may vary, e.g. from 0.02 to 10% by vol. The oil-in-water emulsion may contain about 50 to 90% oil.
Patent GB-638042-A (GB)
Title: Improvements in or relating to collapsible perambulators or baby carriages
IPC: B62B7/10
Filed: 1948-01-08
Abstract: 638,042. Automatic catches. STADIUM PATENTS, Ltd., and COOKLIN, L. Jan. 8, 1948, No. 581. [Class 44] [Also in Group XXXII] A catch comprises a fixed part 66 and a pivoted part 67 having.. a laterally projecting portion 68 which engages in the notch 69 when the part 67 is flexed, inwardly. Subsequent entry of a pin into the jaws will cause part 67 to lift thus disengaging the part 68 and lock the pin in position. Specification 638,041, [Group XXXII], is referred to.
Patent GB-1451681-A (GB)
Title: Positioning apparatus
IPC: G05B19/39
Filed: 1974-01-07
Abstract: 1451681 Measuring displacement electrically; photo-electrically AUTOMATISME ET TECHNIQUES ELECTRONIQUES POUR LE CONTROLE 7 Jan 1974 [5 Jan 1973]  00587/74 Headings G1A and G1N Positioning apparatus includes motive means and measuring means comprising: a scale cooperating with pick-ups positioned to produce two alternating signals phase-separated by less than 180 degrees; displacement signal means; and further displacement signal means producing from the alternating signals a signal which, in two adjacent parts each smaller than half a period, varies monotonically from a first extreme value through a reference value to a second extreme value, whilst on both sides of the parts throughout the remainder of the period it does not come significantly closer to the reference value than is the respective extreme value. In known apparatus, Figs. 1 and 5, rotation of a disc D having sectors of alternating transparency causes photo-transistors T A , T B  to emit roughly sine-wave signals in mutual quadrature which, when compared in a displacement counter H 1  with a demand set in a counter H 2 , produce a staircase error signal variable between positive and negative limits, causing a motor M (Fig. 1) (e.g. a torque or stepping motor) to seek a null. The rest position is subject to an uncertainty of one increment. The apparatus inserts into the staircase curve, Fig. 6, a segment y varying sinusoidally between extreme values ŒV 1 , providing thereby a finecontrol analogue of displacement between consecutive steps. Sine waves a, b Fig. 3, shaped into phase-separated squarewaves α, #, are by means of inverters InA, In B , gates E 1 , E 2 , transistors Tr 1 , Tr 2  and relay switches C 1 , C 2 , C 3 , combined with a half-cycle of the sine wave A to give the waveform (12) of Fig. 4 at the output of a summing amplifier SA Fig. 3. The error outputs from the counter H 2  and from the amplifier SA, Fig. 5, are selected by the relay switches k 1 , k2 to change over when the contents of the counters H 1 , H 2  become equal. A magnetic detector may be used instead of a photo-electric detector.
Patent GB-840619-A (GB)
Title: Improvements in the production of alkyls
Inventor: MUELLER HERBERT
IPC: C07F9/02
Filed: 1959-01-07
Abstract: Silicon tetra-alkyls are prepared by reacting an aluminium alkyl or alkyl halide with a silicon tetrahalide, adding sodium fluoride to complex with the more highly halogenated aluminium alkyls formed in the reaction, distilling off the silicon alkyl and decomposing the complex into aluminium trialkyl and sodium aluminium fluoride by thermal splitting.  In Example (5) SiCl4 was added to a benzene solution of Al(C2H5)3 with subsequent stirring and heating to 80 DEG C.  NaF was then added and the mixture further heated. Si(C2H5)4 (b.p. 62 DEG  C. at 40 mm. Hg) was distilled off in vacuo after removal of solvent.ALSO:Alkyls of elements of Group IVB and VB (other than carbon and nitrogen) are prepared by reacting aluminium alkyls or alkyl halides with the corresponding halides, adding sodium fluoride to complex with the more highly halogenated aluminium alkyls formed in the reaction, distilling off the desired alkyl and decomposing the complex into aluminium trialkyl and sodium aluminium fluoride by thermal splitting.
Patent GB-899199-A (GB)
Title: Production of ª--substituted alkyl penicillins and salts thereof
IPC: A61K31/43
Filed: 1960-01-07
Abstract: The invention relates to a -substituted alkyl penicillins and salts thereof of general formula <FORM:0899199/IV (b)/1> in which R is hydrogen, alkyl, alkoxyl, amino, nitro, cyano, hydroxyl or halogen, R1 is alkyl, R2 is hydrogen or a non-toxic salt-forming radical and X is oxygen or sulphur. Specified salts are sodium, potassium, ammonium and substituted ammonium, e.g. procaine, dibenzylamine, N,N1-dibenzylethylenediamine, N-benzyl-beta-phenethylamine and 2-methylamino-1,2-diphenyl ethanol (l-ephenamine).  The compounds are produced by reacting 6-aminopenicillanic acid or a salt thereof, with an a -substituted alkanoic acid or functional derivative thereof containing the group <FORM:0899199/IV (b)/2> wherein R, R1 and X have the above values, and then if R2 of formula 1 is hydrogen, if desired, reacting the product with a base having a non-toxic salt forming radical.  The a -substituted alkanoic acid reactant may be (a) the a -substituted alkanoic acid together with a 1,3-substituted carbodiimide, e.g. 1,3-dicyclohexylcarbodiimide (b) an alkanoyl chloride, e.g. a -phenoxypropionyl chloride (c) an acid anhydride, e.g. a -phenoxypropionyl anhydride or (d) a mixed acid anhydride, e.g. t-butoxy-formic a -phenoxypropionic anhydride produced in situ from t-butyl chlorocarbonate and a -phenoxypropionic acid. Examples relate inter alia to the preparation of the potassium, sodium, procaine and N,N-dibenzylethylenediamine salts of a -phenoxyethylpenicillin; the potassium and procaine salts of a -phenylmercapto-ethyl penicillin; and the potassium salt of a -phenoxy-b -methyl propyl penicillin.
Patent GB-245787-A (GB)
Title: Internal combustion turbine
IPC: F02C3/00
Filed: 1926-01-08
Abstract: 245,787. Leich, C. F. Jan. 9, 1925, [Convention date]. Working - fluid supply.- In an internal-combustion turbine wherein rings of explosion chambers 21, 22 discharge on to turbine wheels 1, 2, the control motor 9 for regulating the supply of fuel and air and ignition gases to the explosion chambers is driven at a much lower speed than the turbine shaft 3. Bevel transmission gear 11, 13, together with a centrifugal governor, is arranged between the shaft 3 and the control rotor. The supply of air from an annular chamber 17 and fuel and air from a chamber 18 is controlled by grooves 23, 24 formed, together with grooves 25, for conducting ignition gases from one explosion chamber to the next, in a series of overlapping pivoted segments 28 on the periphery of the control rotor. These segments may be made of prepared carbon or a ceramic material, and the ignition grooves 25 may be lined with steatite.
Patent GB-1491521-A (GB)
Title: Separation and purification of rhodium
IPC: C22B11/00
Filed: 1975-01-07
Abstract: 1491521 Recovery of precious metals SWARSAB MINING EXPLORATION & DEVELOPMENT CO (PTY) Ltd 7 Jan 1975 630/75 Addition to 1418060 Heading C7D The process of the Parent Specification is modified in that the precious metal concentrate is not alloyed with lead. A mixture comprising Rh and at least one of Pt Pd and Au, and optionally Ir and Ru, is treated to form the halide or perchlorate salts thereof, the salts are ignited at 575-625‹C, the ignition residue being leached in aqua regia to dissolve Pt, Pd and/or Au, and leaving Rh, and, if present, Ir and Ru in the undissolved condition. The individual precious metals are then recovered.
Patent GB-703953-A (GB)
Title: Improvements in and relating to gas-fired hot-water ready-supply devices combined with storage tanks
Inventor: BRUEMMERHOFF WALTER
IPC: F24H1/18
Filed: 1952-01-09
Abstract: 703,953. Hot-water boilers. VAILLANT, H., [trading as VAILLANT-KOMMANDITGES., J.]. Jan. 9, 1952, No. 651/52. Class 64(1) [Also in Group XXIX] A gas-heated hot-water supply device, in which the water circulates between the heater and a storage tank and in which a shut-off device for interrupting normal circulation between the heater and tank is automatically actuated on tapping off hot water so that water leaving the storage tank is conducted through the heater for reheating before it reaches the outlet, is provided with a temperature-controlled valve regulating the flow from the tank to the heater so that the quantity of water to be reheated is smaller the lower its temperature. The heater comprises a water pipe 6 surrounding a flue 4 heated by a gas burner 5 and closed at the top by a block 7 traversed by the pipe. The pipe is connected to the storage tank 1 by upper and lower pipes 3, 2 providing continuous circulation for water heated to a predetermined storage temperature. The valve 22 controlling the supply of gas to the burner is under the control of a thermostat 24 in the tank (see Group XXIX). Cold water enters by a passage controlled by the valve 12 and hot water is drawn off by a pipe 18 and a valve 30. The normal circulation through the pipes 2, 3 can be interrupted by piston valves 8, 9 connected together by a rod 10, a downward extension of which is connected to the valve 12 and to a spring- pressed rubber diaphragm 11 dividing a control chamber 11' into upper and lower compartments. On opening the outlet valve 30, pressure in the lower compartment of the chamber 11<SP>1</SP>, caused by the inflow of water through the valve 12 and the restricted pipe 27 connecting to the tank, raises the diaphragm and causes the valves 8, 9 to close the pipes 2, 3. Water from the top of the tank thus flows via a pipe- 28 past a valve 14, Fig. 2 (not shown) which is under the control of a thermostat initially set by a hand-wheel to suit the required temperature of the issuing water, to the upper compartment of the chamber 11<SP>1</SP>, and through pipes 29, 6, 18 to the outlet. A temperature-sensitive element 19 in the pipe 18 provides additional control for the gas valve 22. In a modification, hot water is fed to the bottom of the storage tank and cooler water is circulated from the top.
Patent GB-1470270-A (GB)
Title: Redundant intrinsically safe electrical barrier
IPC: H02H9/00
Filed: 1975-01-07
Abstract: 1470270 Intrinsic safety barriers PETROLITE CORP 7 Jan 1975 [27 March 1974] 677/75 Heading H2K To prevent excessive voltages appearing at a terminal 39 which is supplied via a line A, four voltage-responsive short-circuiting switches 43, 44, 46, 47 are connected between the line and earth, two responding to positive voltages and two to negative voltages and each comprising a triac triggered via a Zener diode. The shortcircuiting action may blow a fuse 51. Resistors 52-54 reduce the current and facilitate testing. There may be a plurality of lines A feeding respective terminals 39, in which case each line is connected through respective sets of diodes 31, 32 to switches common to all lines.