baber/WOPTO huggingface dataset:
Patent GB-937237-A (GB)
Title: Improvements in or relating to the instrumentation of vessels to determine the levelof the vessel contents
Inventor: PUGH HAROLD
IPC: G01F23/24
Filed: 1960-07-14
Abstract: 937,237. Instrumentation of reactor vessels. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 30, 1961 [July 14, 1960], No. 24637/60. Class 78 (1). The level of material in a fluidized bed in a chemical reactor vessel is indicated by two probes 5 and 35 placed within the reactor and positioned at the same level. Probe 5 is heated by heater 19 and encloses thermocouple 14. Probe 35 encloses thermocouple 30. The two thermocouples are included in the circuit shown and the difference of temperatures is reflected on voltmeter 36. When no material reaches the level of the probes voltmeter 36 registers its normal reading. When however material reaches the probes and covers them the rate of loss of material from the heated probe changes and a change takes place in reading of voltmeter 36. Thus the voltmeter registers whether or not the material reaches its predetermined level. Two such pairs of probes may be employed at respective high and low levels within the reactor to indicate minimum and maximum levels.
Patent GB-519932-A (GB)
Title: Improvements relating to a method of making products derived from molten metal
IPC: B22D11/06
Filed: 1938-08-22
Abstract: 519,932. Cementation ; alloys ; granulating. MERLE, J. M. Aug. 22, 1938, No. 24667. [Classes 72, 82 (i) and 82 (ii)] [Also in Groups XXII and V] Mollen metal in a ladle 82, with or without another metal in a ladle 26, is formed into a thin film on a moving surface cooled to below freezing point and projected into a mould 36 so that it breaks up into particles. The metal in the ladle 26 may comprise lead when the metal is bronze. By causing the projected metal to travel through a greater distance or through a coolant it is deposited as a powder and if projected through ammonia, when steel or a suitable alloy is poured, the particles will be nitrogenised. In modifications instead of a rotating disc 1 the cooling and projecting surface takes the form of the periphery of a drum or of two drums rotating in opposite and in close proximity.
Patent GB-727687-A (GB)
Title: Improvements in or relating to engine turning gear
Inventor: HEWSON ROBERT PHILIP
IPC: F02N15/04
Filed: 1952-10-02
Abstract: 727,687. Turning-gear. STANLEY ENGINEERING CO., Ltd. Sept. 17, 1953 [Oct. 2, 1952], No. 24680/52. Addition to 697,893. Class 7(5). In the engine turning-gear described in the parent Specification a reduction gearing, such as a sun wheel 19 and planet carrier 20, is located between the driving pulley 9 and the starter motor 5.
Patent GB-745018-A (GB)
Title: Improvements in and relating to chain balances
IPC: G01G1/30
Filed: 1953-09-07
Abstract: 745,018. Weighing-apparatus. REYERS & ZOON FABRIEK VAN FIJNE WEEGWERKTUIGEN, N. V. Sept. 7, 1953 [Oct. 18, 1952]., No. 24709/53. Class 143 Relates to chain balances in which the beam is freed for weighing by lifting it vertically and consists in providing an additional chain on the other arm of the beam so that the vertical movements of the beam do not disturb the. equilibrium of the two arms, the chains being attached at one end to the beam and at the other end to a movable member and a fixed member respectively. As shown in Fig. 1, one arm of the beam 1 has a chain 16 attached to a hook 16 at one end and a sliding block 7, with an index pointer 8, at the other end; the other arm has a chain 19 attached to the column 4 so that as the beam 1 is raised or lowered both chains decrease or increase in effective length equally. The sliding block 7 is preferably attached to an endless cord 11 moved by rotation of a pulley 13. Each or either chain may be replaced by two or more chains. Specification 646,694 is referred to.
Patent GB-732819-A (GB)
Title: Stretch-wrap forming machine
Inventor: KRAMER DAVID CHESTER
IPC: B21D11/02
Filed: 1953-09-07
Abstract: 732,819. Stretch-bending. SEIFRIED, R. Sept. 7, 1953, No. 24710/53. Class 83 (4). A stretch-wrap forming machine comprises a central fixed support for a die and similar means on opposite sides of its longitudinal axis to stretch and wrap a sheet around the die, each of said means comprising a first hydraulic cylinder unit pivotally mounted to move in a plane transverse to the longitudinal axis of the die and having a piston rod directed towards the die, a second hydraulic cylinder unit pivotally carried on the end of the said piston rod and having an extending piston pivotally carrying, on a pivot transverse to the pivot carrying the second hydraulic cylinder unit, a jaw adapted to grip the edge of the sheet and a third hydraulic cylinder unit whose piston is pivotally connected to the piston of the first unit to move the first unit about its pivot to wrap the sheet around the die. On each of two opposite sides of a fixed die 23 three sets of hydraulic apparatus carry between them a sheet gripping jaw 15. Each set comprises a hydraulic cylinder 26 universally mounted at 31 on a fixed bracket 24 and having a piston rod 28, directed towards the die 23 and having secured thereto a forked bracket 34. The bracket 34 carries on a pivot 38 a hydraulic cylinder 37 having a piston rod 40, a clevis 41 secured to which is pivotally connected at 42 to the jaw 15 which has grippers 45 operated in known manner. A hydraulic cylinder 49, universally mounted on an adjustable slide block 60, has its piston rod 51 universally connected at 54, 55 to the bracket 34. To move the jaw to a loading position the pivot 38, and thus the cylinder 37 and jaw 15, is rotated relative to the bracket 34 by a hydraulic cylinder 47 carried thereon whose piston rod is linked to the pivot 38 by an arm 46. In operation the slide block 60 is first positioned under the edge of the die 23 by hydraulic cylinder means 63 and the hydraulic cylinder means 26, 47, and 49 then manipulated to bring the jaws 15 into an opposed horizontal position to grip the sheet. The piston rod 28 is then retracted into its cylinder 26 to stretch the sheet to its elastic limit, pressure in the hydraulic cylinder 37 being adjusted for fine control of the pull on the sheet. The piston rod 51 is then retracted into its cylinder 49 to wrap the stretched sheet around the die, the piston rod 28 moving out of its cylinder 26, the pressure in which is automatically controlled together with that in the cylinder 37 to ensure a pull of constant force on the sheet. After wrapping, an additional elongating pull is given by the rod 51 to minimize spring back of the bent sheet. A pressure dividing valve arrangement is provided to ensure that the pressure in any cylinder of the central set is the mean of the pressures in the corresponding cylinders in the outer sets.
Patent GB-440022-A (GB)
Title: Improvements in recoil-absorbing devices for fire-arms
IPC: F41A21/36
Filed: 1934-11-29
Abstract: 440,022. Recoil-absorbing attachments to guns. GALLIOT, N., 110. Boulevard Exelmans, Paris. Nov. 29, 1934, No. 24778 /35. Convention date, Dec. 5. 1933. Divided out of 435,724. [Class 92 (ii)] Relates to recoil-absorbing devices of the kind described in Specifications 131,040 and 176,337, [both in Class 92 (ii)], comprising one or more convergent-divergent nozzles b to increase the kinetic energy of the gases which are diverted rearwardly by one or more deflector surfaces each generated by the revolution of an arc c<2> round the axis of the gun barrel. According to the present invention, the gases pass rearwardly into a collector o of volute shape in transverse section and thence pass, as by a pipe o<3>, still rearwardly to the free air behind the gun or into a second collector. The invention is shown applied to a gun fitted with the recoil-absorbing device described in Specification 435,724 which includes helical vanes b<1>, i, h for maintaining the helicoidal motion of the gases initiated by the rifling, and means such as reservoir q, piping n<2>, cavities n, and passages n<3> for introducing cooling liquid into the gases. The helicoidal motion of the gases is maintained in the collector o by vanes a<2> forming part of a sleeve on the gun barrel and the cooling liquid passes through the collector by way of ducts p.
Patent GB-735713-A (GB)
Title: Apparatus for the elimination of slugging in gas/liquid streams
IPC: B01F5/00
Filed: 1952-10-03
Abstract: <PICT:0735713/III/1> Apparatus for preventing or eliminating slugging in gas/liquid streams comprises a vessel 17 having an inlet pipe 16 and an outlet pipe 20 for the gas/liquid stream and a baffle 19 interposed between the inlet and the outlet and spaced from the top and bottom of the vessel, whereby the liquid entering the vessel flows underneath the baffle and the gas over it, the outlet pipe 20 sloping downwards from the vessel and being of sufficient diameter to enable the liquid to cascade down it together with the gas without the formation of slugs.  The inlet pipe 16 is preferably above the level of liquid in the vessel 17.  When used in an autofining process for the desulphurization of petroleum distillates, the liquid petroleum fraction enters through pipe 11 and mixes in ball valve assembly 12 with recycle hydrogen-containing gas entering at 13. Pumps 10, 14 drive the mixture through the vessel 17 to the next stage of the process. Reference is also made to the use of the apparatus in hydrofining and hydroforming processes.
Patent GB-263934-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F5/08
Filed: 1925-10-06
Abstract: 263,934. Taylor, L. W. Oct. 6, 1925. Tobacco pipes.-The bowl is divided into an upper tobacco-receiving chamber and a lower chamber containing absorbent material by a disc or diaphragm B perforated at B' and arranged to move in a slot A' cut through the bowl. The disc may be pivoted at b so as to be swung into the open position shown for removing the absorbent material; on the disc may slide in and out of position, being provided with a stop to prevent its complete withdrawal. The disc may be cut away at B<2> and may have the central part made thinner than the slot A', to facilitate opening and closing.
Patent GB-1099358-A (GB)
Title: Improvements in or relating to arc welding
Inventor: HONEYBALL WALTER JOHN
IPC: B23K9/23
Filed: 1964-06-16
Abstract: 1,099,358. Welding by fusion; brazing. ENGLISH ELECTRIC VALVE CO. Ltd. April 23, 1965 [June 16, 1964[, No. 24841/64. Heading B3B. In gas shielded arc welding copper parts the weld is composed of copper and a small quantity, e.g., 4-5% nickel. One or more of the parts to be welded is coated with nickel to provide the nickel in the weld. The shielded gas is argon to which may be added hydrogen. The Specification also refers to prior art in which a shim of brazing metal is interposed between copper parts and the parts are brazed using an argon shielded arc.
Patent GB-487393-A (GB)
Title: Improvements in and relating to apparatus for carrying out electrolysis of fused electrolytes
IPC: C25C7/00
Filed: 1936-09-11
Abstract: 487,393. Fused electrolyte apparatus for the production of metals. MAGALL AKT.-GES. ZURICH. Sept. 11, 1936, Nos. 24855, 24856, 24857, and 24858. Void. Convention dates, Oct. 4, 1935, Oct. 4, 1935, Feb. 25, 1936, and Feb. 25, 1936. [Class 41] An electrolytic cell for the production of light metals such as magnesium using a fused electrolyte is provided with a horizontal grating to support a heap of starting material, such as a mixture of ore and carbon, in the form of lumps. In the apparatus shown in Fig. 2, the grating is formed by a set of inverted channelled bars 32 of refractory insulating material surmounting cathode strips 31. The deposited metal is led by the channels to a collecting hood 33 from which it may be withdrawn through a pipe 35 provided with a plug 36. In a modification the channelled bars meet at the centre so as to be self-supporting and are provided with holes opening into the collecting hood. In another modification the channels slope upwardly from the centre and open into collecting hoods provided at the sides. In the apparatus shown in Fig. 7, the grating is constituted by a set of vertical anode plates 52 seated on a bed 51 of a rammed carbon composition. The cathodes 54 rest on an insulating member 55 and are enclosed by a chamber 53 of refractory insulating- material in which the separated metal collects. The chamber 53 is supported on the anode plates and may be provided with lugs engaging between them. In the apparatus shown in Fig. 9, the cathodes consist of U-shaped plates 58 connected by rails 59, 60, and surmounted by a collecting chamber 57. The cathode plates are separated by prismatic bodies 62 of refractory material which constitute the grating supporting the solid charge.
Patent GB-1421328-A (GB)
Title: Automatic control systems and methods
IPC: G05B19/27
Filed: 1972-05-26
Abstract: 1421328 Automatic control ALFRED HERBERT Ltd 1 May 1973 [26 May 1972]  24875/72 Heading G3N A servo-control system responsive to a binary demand signal representing a change in value of a controlled variable comprises a control means controlling the transfer of data to a counting means the contents of which is up-dated to provide a binary error signal to a servo means. As shown the position of a machine tool element 10 is determined by a transducer 12 and output pulses indicative of extent and direction of movement, are fed from a unit 14, and selectively passed by gates 20, 21 to up/down inputs of an error counter 24. A demand position from a computer 26 is fed to a parallel adder 28 which in co-operation with the counter 24 provides an error signal on a line 30 which through a D/A converter 70 control a servosystem comprising an amplifier 74, a servovalve 76, and a loadpositioning ram 78; acceleration feedback is provided by a transducer 80. Each new demand value is preceded by an address which is detected by a NAND gate 34, which, via a clocked AND gate 36 sets a bi-stable circuit 38. The 1 output from the circuit 38 closes gates 20, 21 and sets a first stage 40A of a shift register 40 control data transfer between counter 24 and adder 28. The stage 40A opens a gate 46 to allow the least significant digits in counter 24 to be added to the demand value in adder 28. A clockpulse sets the 1 signal in stage 40B and opens control gates 52, 56 whereby the least significant digits in adder 28 are set in the counter 24 and the most significant digits in counter 24 added to the demand value in adder 28 together with the carry from the previous operation. The next clockpulse sets stage 40C to open gate 62 and transfer the most significant digits of adder 28 into the counter 24. The subsequent clockpulse sets stage 40D which opens gates 20, 21 and resets bi-stable 38. The count is store 24 being presented on line 30 as a binary position-error signal.
Patent GB-1022630-A (GB)
Title: Improvements in conveyors
Inventor: CARRADUS RICHARD TROUGHTON
IPC: B65G17/10
Filed: 1963-06-24
Abstract: 1,022,630. Endless conveyers. J. H. SCHMITZ-SOHNE G.m.b.H. June 22, 1964 [June 24, 1963], No. 24963/63. Heading B8A. A pan for a conveyer formed of overlapping troughed pans in which the rear part 2 of the pan on the assembled conveyer is overlapped by the forward part 1 of the succeeding pan, is so curved that during relative articulation in the vertical plane, the overlapping parts remain in contact. All the pans are mounted centrally on an endless chain the links of which are pivoted on pins 3. The forward and rear parts 1, 2 are curved in longi. tudinal sections. The curvature of each part 1, 2 is not constant across the width of the pan but in vertical longitudinal section comprises parts of circles whose centres lie on the horizontal centre line of the hinge pin 3 below it. In a further embodiment the length of the pans at their outer edges is greater than that at the centre. In a final embodiment, Fig. 6 (not shown) the forward part of the pan is straight in longitudinal section and the rear portion is curved as aforesaid.
Patent GB-621283-A (GB)
Title: Improvements in or relating to injection needles
IPC: A61M5/32
Filed: 1946-02-20
Abstract: 621,283. Injection-needles. BOWIE, J. H. Feb. 20, 1946, No. 24996/48. Divided out of 621,208. [Class 81(ii)] An injection-needle comprises a rigid portion 1 terminating at one end in a point 2, and a resilient portion 3, preferably coiled, permitting relative movement between the rigid portion and the end 4 of the needle which is to be connected, e.g. by means of a union nut 5, to a syringe- Specification 621,208 is referred to.
Patent GB-1171676-A (GB)
Title: Improvements in producing pasted battery plates
IPC: F26B5/16
Filed: 1967-05-31
Abstract: 1,171,676. Coating apparatus. OLDHAM & SON Ltd. and E. GOODWIN. 1 May, 1968 [31 May, 1967], No. 25031/67. Heading B2L. [Also in Divisions F4 and H1] An apparatus for surface drying pasted battery plates 2 by applying a dry powder (e.g. lead oxide or silica) thereto comprises a chamber having stationary end plates 4 provided with openings 5, and casing 6 rotatably mounted on rollers 7. Screw conveyors 15 (or endless chains) convey the plates 2 through the chamber in which a powder-laden atmosphere is maintained by the vanes 12 on casing 6. A V-shaped baffle 19 prevents powder tossed by the vanes 12 from falling directly onto the plates 2. Vacuum pump 14 may provide a slight negative pressure in the chamber.
Patent GB-263951-A (GB)
Title: Improvement in shock absorbers for vehicles
IPC: B60G11/27
Filed: 1925-10-09
Abstract: 263,951. Amory, W. N., Schley, K. B., and Jacob, L. Oct. 9, 1925. Pneumatic springs used instead of or in addition to the usual steel springs of a vehicle are made with walls 11, 12 having sufficient stiffness to carry the normal weight of the vehicle without any internal pressure, a small additional supporting force being, however, provided by inflating the cushions slightly. The cushion may be of annular form or may be made with a gap 13 to facilitate assembly. The vertical walls 11, 12 may be reinforced with layers of fabric. The cushions are arranged between upper and lower plates 14, 15 with a centreing pin 16.
Patent GB-980342-A (GB)
Title: Improvements in or relating to rheostats and the like
Inventor: ANDREWS CHARLES EDWARD
IPC: H01C10/30
Filed: 1960-07-20
Abstract: 980,342. Variable resistors. ENGLISH ELECTRIC CO. Ltd. July 20, 1961 [July 20, 1960], No. 25285/60. Heading H1S. An insert of polytetrafluoroethylene separates, and is flush with the surface of, the resistive and the conductive tracks of a rheostat, whereby the deposition between the tracks of carbon from a carbon brush contact is discouraged. The polytetrafluoroethylene inserts 18, Fig. 2, are held in a slot 17 formed in the insulating moulding 11 in which are mounted the two tracks 12 and 13, to each of which tracks contact is made by carbon brushes mounted one at each end of a rotatable spring arm, Fig. 2.
Patent GB-458377-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P7/34
Filed: 1935-09-12
Abstract: 458,377. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 12, 1935, No. 25364. Convention date, Sept. 12, 1934. [Class 38 (iv)] [See also Group XXXVII] Speed.-A motor M is supplied from a constant voltage generator K in series with a booster generator Z having a field winding F2 divided into parallel-connected branches and fed from the generator K in series with an exciter E, the field of the exciter E being capable of regulation to vary the voltage of the exciter over a range extending from a value which is a fraction, say one half, of the voltage of the generator K to a value which is greater than, say one and a half times, that voltage. The exciter field is controlled to maintain the speed of the motor M by means of a regulating resistance R1 cut in and out of circuit by a relay k controlled by a Tirrill regulator T having a coil b connected across the motor armature. The speed at which the motor is maintained is determined by the setting of a resistance R2 in the circuit of the coil b, and an additional coil c on the regulator is provided, connected in series with a resistance R3 across a resistance R4 in the armature circuit of the motor, to eliminate speed variations due to changes in load.
Patent GB-701019-A (GB)
Title: Improvements in and relating to regenerative heat exchangers
IPC: C21B9/06
Filed: 1951-10-31
Abstract: 701,019. Regenerative heat-exchangers. STEULER-INDUSTRIEWERKE GES. Oct. 31, 1951 [Aug. 10, 1949], No. 25482/51. Class 64(1) In a regenerative heat-exchanger in which the checkerwork contains a cluster of vertical passages which are separated from one another along their entire lengths and contain longitudinally extending partitions 4 which are angularly displaced relatively to one another from zone to zone along the length of the passages, passage sections 7 which are free of partitions are provided between the zones. In one form, Fig. 3, the passages are formed by hollow bricks 3, and the partitions by flat elements resting on projections 5. In another form, Fig. 4, the passages and partitions are formed by eight-pointed starshaped elements 3, and the partition free sections by cruciform elements.
Patent GB-1331717-A (GB)
Title: Blending valve
IPC: F16K11/00
Filed: 1971-04-19
Abstract: 1331717 Valves LESLIE CO 19 April 1971 [9 April 1970] 25526/71 Heading F2V A mixing valve comprises hot and cold water inlets 36, 34 respectively, a valve member 31 axially movable with a stem 24 and also rotatable thereon, a diaphragm 17 one side of which communicates with the cold water inlet and the other side of which communicates with the outlet 16, and a key 31a on the valve member 31 slidable in a helical groove 32a so that axial movement of the stem causes progressive axial and rotational movement of the valve member. An increase in demand for warm water at the outlet reduces the pressure under the diaphragm 17 which moves downwardly against a spring 28 to admit a greater percentage of hot water to compensate for the lower temperature of the hot water under increased demand conditions (Fig. 1, not shown). The prescribed temperature is set by a knob 42a which rotates a sleeve 32 to adjust the initial ratio of hot to cold water. Should the valve member 31 stick in the downward position and demand flow conditions change sufficiently for the valve stem to move upwardly, a retainer 29 will no longer maintain a leaf-spring 41 firmly against a plug 40 and the latter will open to admit cold water in spite of the sticking valve member 31. The slope of the groove 32a may be made adjustable (Figs. 5 and 6, not shown) so that the function of the ratio of hot to cold water versus axial displacement of the valve member may be altered.
Patent GB-288096-A (GB)
Title: Improved means for controlling the nippers in heilmann and like combers
IPC: D01G19/16
Filed: 1927-08-02
Abstract: 288,096. Soc. Alsacienne de Constructions MÚcaniques, and Gegauff, C. Aug. 2, 1927. Divided on 257,232. Combing-machines. - In a Heilmann or like combing-machine of the type in which the nipper is reciprocated between the combing position and the detaching-rollers and in which the upper jaw e is moved along an invariable path determined by a cam m, m' and a fixed roller l, the path of the lower jaw f is regulated by a cam u, u<1> and a roller x. The roller x is carried by a deformed spring y and is held in its normal position by a fixed arm z and regulating screw v. At the time of nipping the lap for combing the roller x is slightly displaced and the pressure of the spring y is transmitted to the lower jaw f. The leaf spring y may be replaced by a spiral spring.