baber/WOPTO huggingface dataset:
Patent GB-938378-A (GB)
Title: Improvements in methods and apparatus for mixing rubber with particulate solid material
Inventor: BENNETT WILLIAM DOUGLAS
IPC: B29B7/48
Filed: 1959-02-16
Abstract: 938,378. Mixing rubber. DUNLOP RUBBER CO. Ltd. Feb. 15, 1960 [Feb. 16, 1959], No. 5267/59. Class 86. [Also in Group V] Rubber is mixed in specific proportions with particulate solids, e.g. carbon black, ground reclaim rubber and sulphur, by extruding the rubber as a tube and feeding the solids into the tube as it is formed, the relative rates of extrusion and feeding being controlled to obtain the required proportions, the filled tube being fed into a mixer to disintegrate and mix it into a homogeneous mass. Raw shredded rubber is supplied from hopper 4 to a worm 3 having a pitch which lessens towards the outlet; an elbow 8b conducts the rubber to a die 8c through which protrudes the tube 27 bringing the particulate solid material from an agitating unit 10, which comprises a casing 11 having heating pipes 14, 15 and inclined agitating blades 22. A feed screw 24 forces the solids into the rubber tube which is removed from the die on a conveyer belt 32 and fed to a compacting unit 31. The speed of the belt and tube is measured by a phototachoscope unit 34 which controls the speeds of the extruder screw 3 and the compacting unit 31. A freely rotatable roller 36 on a pivoted lever 37 bears on the tube and influences an electrical transducer 39 to control the speed of the motor 26 to correct variations in the diameter of the tube and hence in solid filler content. The compacting unit 31 comprises a barrel 41, a forcing screw 40 driven by a motor 43 controlled by the unit 34, and a feed pipe 44 for rubber compounding liquids, which are injected by a pump which operates once for each rotation of the screw 40. The unit 31 feeds the compacted material to a number of mixers 45-48 constructed as described in Specification 937,652, the mixing worms 51 being inclined at an angle of 30 degrees to a vertical plane normal to the axis and successively at 45 degrees to the vertical when viewed axially each being at right angles to the inclination of the preceding worm. Gas relief valves 52 are provided. A unit 49, positioned between mixers 46, 47, supplies pellets of vulcanising compounds and is also controlled by the unit 34. The final delivery is by a screw extruder 63 through a die or dies 67 on to a conveyer 68. There is an inspection hatch 66. The apparatus may be water cooled as necessary. In a modification, the particulate solids may be fed through a coaxial passage in the feed screw 3, a stationary feed screw being arranged in this passage. The feed pipe 44 may be fitted between the worm 40 and the first mixer 45; or the liquids may be introduced into the rubber tube extruding apparatus, or into the unit 10. If a mixture of natural and synthetic rubbers is being made, the mixture may be extruded as a tube, or one rubber may be extruded inside a tube of the other, and the solids in the centre.
Patent GB-367178-A (GB)
Title: Improvements in and relating to electric contacts
IPC: H01H11/06
Filed: 1931-02-19
Abstract: 367,178. Switch contacts. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Goetz, E. F. ; R.D. No. 4, Box 92, Schenectady, New York, U.S.A.) Feb. 19, 1931, No. 5282. Convention date, Feb. 19, 1930. [Class 38 (v).] A readily detachable self-aligning contact member specially suitable for an electromagnetic switch comprises a bridging contact 12, mounted on a U-shaped pin 16 and capable of sliding and tilting on the pin against the action of a spring 27. Shoulders 21 on the pin hold the spring 27 in place till the whole device is mounted as a unit on a support 13, when the shoulders 21 engage one side of an aperture 19 in the support and tongues 22 on the pin engage the other side of the aperture to hold the device in place.
Patent GB-578106-A (GB)
Title: Improvements relating to riveting apparatus
IPC: B21J15/34
Filed: 1944-03-22
Abstract: 578,106. Apparatus for setting tubular rivets. AVIATION DEVELOPMENTS Ltd., and SPOONER, R. A. W. March 22, 1944, No. 5323. [Class 43] Two or more gripping jaws 60 by which the tail end of a mandrel 9 of a riveting "gun" is gripped in a releasable manner, so as to permit its removal for reloading with rivets, are urged into firm gripping contact by a screw-threaded cap 62 which is screwed over the end 11 of the body or casing of the gun. The jaws, as shown, are tapered, and mounted in a reversely tapered carrier 61 held in a part 11 of the body or casing and on which the cap 62 is screwed. A plug 65 may be screwed into a sleeve-like part 66 of the cap 62, and a spring 67 interposed between it and the carrier 61 to take up any slight axial movement caused by the jaws bedding into the mandrel. An internal flange 63 on the cap 62, by engagement with an external flange 64 on the carrier 61, ensures positive withdrawal of the mandrel 9 when the cap 62 is unscrewed. Specification 578,105 is referred to.
Patent GB-881348-A (GB)
Title: Improvements in agricultural implements
Inventor: YOUNG DANIEL ARTHUR
IPC: A01D42/00
Filed: 1959-02-16
Abstract: 881,348. Forage harvesters. LUNDELL (GREAT BRITAIN) Ltd. Feb. 12, 1960 [Feb. 16, 1959], No. 5330/69. Class 6(3). A forage harvester is provided with a replaceable working unit attached to the main frame 1 by quick release attachment means comprising pins 18 engaging in slots 17 and locked in position by nuts and bolts or a spring loaded cam arrangement. The working unit comprises flails 22 pivoted on a shaft 21 driven through V-belts or chains from a pulley 8 connected to the power take-off shaft of a tractor, and a plate 26 adjustable with respect to the ground so as to vary the degree of draught in the working unit caused by the flails. The working unit may be replaced by a combine harvester, hammer mill or corn head attachment working unit.
Patent GB-126098-A (GB)
Title: Improvements in Clamps for Candle Making Machinery.
Inventor: FINDLATER ANDREW
IPC: C11C5/02
Filed: 1918-10-24
Abstract: 126,098. Findlater, A. Oct. 24, 1918. Candles.-A clamp for candle-moulding machines of the type comprising fi x e d plates 1 and a sliding plate 4, each formed with candle holes 3, is actuated and locked in position by means of an eccentric disk 8 working in a hole or recess 9 in the sliding-plate 4. The disk 8 is operated by a spindle mounted in bearings 6 in the fixed plates 1 and fitted at its upper end with a handle 7. The movement of the handle 7 is limited by stops 11 which are formed as set-screws to enable any wear in the candle holes to be taken up by adjustment of the clamping position.
Patent GB-985386-A (GB)
Title: Tool positioning process and device
IPC: B23Q17/22
Filed: 1963-02-11
Abstract: 985,386. Machine tool details. ETABLISSEMENTS EHL-LATIC. Feb. 11, 1963 [Feb. 9, 1962], No. 5492/63. Headings B3B and B3C. A drilling machine comprises a base 1, Fig. 1, having a work stop 2, a tool column 3 slidable on the base, and a work clamping jaw 5. Column 3 and jaw 5 are moved towards the work by rods 11, 12, pivoted on a lever 9, which is pivoted on base 1 at 10, by a piston 8, the distance moved by column 3 being a half of the movement of clamp 5 so that a drill 4 is always situated in the centre of a workpiece irrespective of width. Rods 11, 12 may be pivoted at different points on lever 9 to provide a different ratio of movement of column 3 and jaw 5, or the rods may be connected to separate pistons. In a modification, Fig. 3, jaw 5 is connected to an hydraulic jack 13 and comprises a rack 14 which co-operates with a pivotable doubletoothed sector 15, 16 which engages with a fixed rack 17 on base 1 thus displacing jaw 5 and column 3. In a further modification frame 3 and jaw 5 are operated by two synchronous motors which control worms connected to the frame and jaws. Drill head 4a can be moved along arm 3a in order to drill holes away from the work axis, dials 19, 20 and 21 being provided for setting the position. Specification 985,225 is referred to.
Patent GB-891198-A (GB)
Title: Self-aligning coupling
Inventor: SCHAPER DIETER
IPC: F16D3/223
Filed: 1960-02-17
Abstract: 891,198. Universal Joints. SCHWERMASCHINENBAU E. THALMANN VEB. Feb. 17, 1960, No. 5593/60. Class 80 (2). The twisting cage of a twisting machine is connected to a driving spindle 2 by means of a flange 4 secured to the cage having a hub portion supported on the spindle by a self-aligning roller bearing 3 and being drivingly connected to the spindle by barrel-shaped elements 6 disposed in registering grooves in the flange and a member 1 fast with the spindle. The barrel shape of the elements 6 permits pivotal movements of the cage.
Patent GB-191644-A (GB)
Title: Improvements relating to gas condensers
IPC: C10K1/04
Filed: 1922-02-27
Abstract: 191,644. Blakeley, W. Feb. 27, 1922. Condensers, atmospheric and like.-In a gas condenser having oblong or rectangular tubes of the type described in Specification 28434/97, the tubes A are fitted at intervals with inclined stationary baffle plates B for diverting hot air away from the exterior surface of the tubes and allowing cold air to take its place. The inclined baffle plates may extend beyond one or both edges of the sides of the tubes and be connected by horizontal or inclined plates to deflect the heated air further away from the tubes.
Patent GB-688133-A (GB)
Title: Improvements in or relating to securing angularly movable control elements to spindles and the like
Inventor: HOMERSTONE H S
IPC: G05G1/12
Filed: 1950-03-07
Abstract: 688,133. Securing knobs &c. to spindles &c. TURNRIGHT CONTROLS, Ltd. March 7,1951 [March 7,1950], No. 5743/50. Class 80 (ii). A handle, pointer, dial &c. or as shown, a knob 4, has a D- shaped bore 5 fitting onto the flattened part 2 of a spindle, hub &c. 1, the twc parts being secured together by a set screw 10 in the knob engaging an elongated recess 8 on the shaft. The flat 8 extends from a median point towards, but not to, the extreme end of the shaft.
Patent GB-480548-A (GB)
Title: Carrier wave signalling systems
IPC: H03C1/02
Filed: 1937-02-26
Abstract: 480,548. Wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. Feb. 26, 1937, No. 5822. Convention date, March 6, 1936. [Class 40 (v)] In a high-frequency signalling system the carrier is modulated by signals, and is multiplied in frequency after modulation but prior to transmission, the percentage modulation being simultaneously increased. The pentode oscillator OSC, Fig. 1, has a thermostatically controlled crystal 1 and an inductance 4 connected in its control grid circuit; the anode circuit 8, 9 is tuned to the required frequency and feeds the frequency multiplier valve FM. Voltage of double the oscillator frequency is fed to an amplifier-modulator valve A ; modulation from the line TL after amplification in the stage LF being applied to the suppressor grid 26 of the valve A. The output circuit of valve A is coupled to the grid of a frequency doubler valve FD whose output circuit 46, 47, tuned to the working frequency, is coupled to the antenna. The negative bias on FD is sufficiently great to cause an increase in the depth of modulation. In order to measure the output current, the inductance 71 and associated rectifier R are connected across the transmission line feeding the antenna. In a modification, Fig. 4 (not shown), by suitable back coupling and tuning of the output circuit, harmonics of the crystal fundamental can be produced. Fig. 2 shows such an oscillator in which the circuit 8, 9 is tuned to the fundamental, and the circuit 8<1>, 9<1> to a multiple frequency. Modulation is also obtained in the same valve by applying modulation energy from source 79 to the control electrode 7.
Patent GB-712901-A (GB)
Title: Improvements in or relating to endless conveyer belts
IPC: A01D61/02
Filed: 1951-03-12
Abstract: 712,901. Belt fastenings. ROST, H. F., and WAERN, O: H. March 12, 1951. No. 5939/51. Class 80 (1) [Also in Groups XXIII and XXX] In a belt conveyer (see Group XXX) the ends of a length of conveyer belting or of adjacent sections of conveyer belting all or a. part of which are resilient are joined by spring clamps engaging over enlarged heads formed on the adjacent ends of the belting. As shown, a resilient section 90, Fig. 12, is held between two clamps at the ends of a belt 89 or adjacent belt sections, or one end of the .resilient section 159, Fig. 15, is formed with an enlargement 160 which is held in a clamp 157 at one end of the belt. or a belt section 151 while the other end is fixed by strips vulcanized to the resilient section and to the belt or a belt section (not shown). The belt 151 is secured in clamp 157 by having its free end 151<SP>1</SP> passed around a rod 152 located within the clamp and folded back over the belt. to which it is glued and further secured by rivets 156 which also secure wearing strips 155 to the longitudinal edges of the belt. The clamps 157 have turned-in edges 154 so that shaped pliers (see Group XXIII) can be inserted for opening them to remove or replace them. Each clamp may be split up into a number of clamps spaced across the belt to allow lateral flexing.
Patent GB-879470-A (GB)
Title: Process for the production of wort
IPC: C12C7/00
Filed: 1958-02-24
Abstract: 879,470. Producing wort. LABATT Ltd., JOHN. Feb. 24, 1958 [July 11, 1957], No. 5945/58. Class 14 (2). In a process for the continuous production of brewer's wort, ground malt is continuously metered through a line 1 into a mixing vessel 3, and adjuncts, e.g. carbohydrate, if desired, fed in through a line 2, to form a slurry with dilute wort supplied via a line 12a from a subsequent wash-vessel 6, and the slurry is then passed upwardly through a mash tower 4, having a plurality of individually temperature-controlled zones or compartments, before overflowing on to a vibrating screen separator 5, spent solids being further extracted in at least two washing and separating stages comprising washing vessels 6, 8 and separators 7, 9; dilute wort from separator 9 is pumped through a line 12b to the vessel 6, and temperature-controlled water is supplied through a line 10 to the vessel 8 in amount proportional to the amounts of materials supplied to the vessel 3. The liquid from the separator 5 is pumped through a line 12 and apportioned between a sedimentation tank 13 and a centrifugal separator 28, clarified wort taken from the top of tank 13 being passed to a surge tank 14, equipped with a stirrer, and thence to a heater 17 into which line steam is injected through a line 16 to raise the temperature to 230‹ to 300‹ F. Hops may be added either to the vessel 14, or after heating; alternatively they may be injected into the wort together with the line steam. The wort is then passed through a pipe-line holder 18 and a flash-cooling tank 19 to a separator 20 to remove spent hops &c. and finally through a surge tank 21, a cooler 22, a further tank 24, and if desired through a diatomaceous earth filter 25 and a tank 26 before being passed to fermentation vessels. Fine solids from the bottom of the tank 13 are pumped to the separator 28 and may be returned to the mid-point of the tank whilst the remaining solids are extracted in a tank 29 having a water feed 30 and deposited in a tank 31 from which the solids are disposed of whilst the clear effluent is passed to vessel 8 via line 10a. Separators used are preferable, rotary impulse vibrated screens having at least 90 but. less than 200 meshes per inch and the volumes of the mesh slurry vessels and compartments of the tower 4 are the same. The feed of the liquid fraction containing fine solids to vessel 13 is maintained at a volumetric rate which does not exceed the product of the crosssectional area of the zone and the solids settling rate.
Patent GB-1425824-A (GB)
Title: Measuring methods and apparatus therefor
IPC: G01B3/10
Filed: 1972-02-09
Abstract: 1425824 Measuring material in rolls by tape measure J C HISLOP 25 April 1973 [9 Feb 1972 20 July 1972] 5960/72 and 33893/72 Heading G1M A tube 38 adjustable in a body part 22 attached to a handle 24, may be inserted into a carpet roll at its inner end so that a graduated tape 26A of string, paper, cotton or plastics may have its end attached to the said inner roll end. The tube 38 is then moved around the successive layers in the roll to unwind and deposit the tape in the roll turns. When the tube 38 has moved round all the turns the tape is cut off and left in the roll. The tape may be lightly folded longitudinally before entering the narrower tube 38 to facilitate its  turning at right angles after leaving the tube.
Patent GB-910214-A (GB)
Title: Improvements in manufacture of copper strip
IPC: C22B7/00
Filed: 1961-02-20
Abstract: Wrought iron-bearing copper products having high annealing temperature are obtained by leaching metallic iron-bearing copper, such as cement copper, with an ammoniacal solution containing ammonium carbonate, and separating the resultant ammoniacal copper-rich solution from the residue in such a way that the solution contains 0.02 to 0.3% by weight (based on the wei3ht of copper in the solution) of finely dispersed metallic iron.  The solution is then treated at elevated temperature with hydrogen under pressure, and the precipitated ferruginous copper powder washed, dried, and compacted, e.g. by roll-bonding followed by sintering and working to shape.  In an example the ammoniacal solution is treated with gaseous hydrogen at 350 DEG  F. and 1000 lb/sq. inch until at least 65% of the copper in the solution is precipitated.  The resulting powder is separated, washed, and dried under reducing or inert atmosphere at 800-900 DEG F.  The product is crushed and air classified to produce a fine powder having an apparent density of about 2.5 and particle sizes of 100% minus 60 mesh (Tyler) and 60% minus 325 mesh, and is then compacted to bar in a conventional powder rolling mill.  The bar is sintered at 1950 DEG  F. in hydrogen for 1/4 to 2 hours, and is then hot and cold rolled to shape.
Patent GB-551042-A (GB)
Title: Improvements relating to electric signalling lamps
IPC: G08B5/36
Filed: 1939-02-24
Abstract: 551,042. Visible signalling-apparatus. ALDIS, A. C. W. Feb. 24, 1939, No. 6150. [Class 118 (ii)] [Also in Groups XI and XXXVII] Within the casing a of an electric signalling hand-lamp is pivoted an annular reflector d of parabolic cross-section, the pivot axis e passing through or near the focus of the reflector being at right angles to the optical axis of the lamp. The filament of the bulb v extends along the pivot axis. The reflector is operated against the action of a spring g by pressing on an arm f, the motion of which is transmitted to the reflector through a spindle h on arm carried by the latter, a link k, and an arm m attached to the reflector. An adjustable abutment limits the movement of the reflector. A pin attached to the back of the lamp casing passes through a hole in the arm f, to limit the movement of the latter. This pin is carried by a disc which can be rotated to adjust the position of the pin. At the rear of the casing, and set to one side, is a handle n which is held by the right hand when the arm f is being pressed by the fore-finger. The thumb of the same hand can operate against a spring, an arm z extending through an opening 2 from a space within the handle z, and so rotate a spindle 4 carrying spring contacts 5 which can be brought into contact with fixed contacts 6 and so close the circuit of the bulb v. The lamp has a sighting device comprising an eyepiece 12 and a red or other translucent ring 13 which is illuminated through an opening 15. The interior of the hollow part 14 carrying the ring 13 may be white. An optical sighting device, the aiming marks of which are illuminated in a similar manner, may be used instead. Specification 141,077, [Class 118 (ii)], is referred to.
Patent GB-972532-A (GB)
Title: Improvements in or relating to titanium base alloys
Inventor: HATCH ALLAN JAY
IPC: C22C14/00
Filed: 1961-02-20
Abstract: An alloy having fine as-cast grain size contains in percentage by weight .Al.4-8 .V.3-5 .Be.0.05-0.15 .S.0.02-0.07 .Ti.balance An exemplified alloy was forged at 1850  DEG F., and then rolled at 1750 DEG F., followed by annealing for two hours at 1300  DEG F. and air cooling.  Subsequent heat treatment consisted of heating for one hour at 1550  DEG F., quenching into water, and then ageing at 900  DEG F. for eight hours and air cooling.  Use of the alloy for aircraft components is referred to.
Patent GB-821844-A (GB)
Title: Improvements in or relating to fluid pressure-medium flow control devices
IPC: F16K31/12
Filed: 1956-02-29
Abstract: 821,844. Change-speed controls. WESTING- HOUSE BREMSEN G.m.b.H. Feb. 29, 1956 [March 4, 1955], No. 6275/56. Class 80 (2). [Also in Group XXIX] A fluid - pressure medium supply control device, e.g. for a power transmission gearing, has a controlpiston 4 carrying a feeler 5 which, depending on the condition of movement of an element, e.g. a shaft 3 allows the piston to be displaced by the pressure by a relatively large or a small amount for producing a small or large outlet pressure from the device, and an operating piston 10 arranged between the control piston and pressure inlet and outlet connections 14, 15 controlled by the piston 10 whereby the pistons continuously reciprocate under the supply and exhaust of pressure when the control piston is permitted a large displacement. For effecting a gear change shaft 3 must be at rest. Pressure at 14 then passes to the outlet 15 via passages 12, 13 in piston 10 for actuating the gear-change mechanism, and via annular passage 17 to displace piston 4 a small amount to make the vertically hanging feeler 5 abut a shaft collar 7. If shaft 3 is rotating, feeler 5 is displaced against spring 6 and piston 4 makes a large displacement and opens port 21 so that pressure from 17 acts at 23 and shifts piston 10 against spring 11. Pressure at 15 and at 18 above piston 4 is now exhausted via passage 17 through a port 25 and throttle 16 whereby spring 8 moves piston 10 to its initial position allowing pressure at 23 and 21 to exhaust at 26 below piston 4 whereby spring 11 moves piston 10 to its initial position. Provided the feeler is displaced by the rotating shaft, the pistons will reciprocate and only a reduced pressure, insufficient to actuate the gear change mechanism, will appear at the outlet.
Patent GB-1418064-A (GB)
Title: Bus-bar connectors
IPC: H01R4/50
Filed: 1973-02-08
Abstract: 1418064 Connecting pieces LA TELEMECANIQUE ELECTRIQUE 8 Feb 1973 [22 Feb 1972] 6322/73 Heading H2E A connecting device for connecting sets of bus-bars end to end comprises a common clamping component (Fig. 3) which consists of a rod 20 having end clamping plates 26, 27, which sandwich a series of contact plates 11, 12, between insulating plates 16, 17 against the action of springs 21 within flexible interlocking members 22, 23, when a lever 10 is rotated so that clamping plate 27 moving against ramps 29 thus increasing pressure on the contact plates and forcing them against the bus-bars 7, 8 for which they act as electrical bridging contacts between sets. A maximum clamping force may not be exceeded, as, beyond a force set by the tension in springs 21, upper ramps 31, Fig. 6, overshoot depressions 30 in lower ramps 29, and the excess rotation necessarily imparted, disengages the ramps at edge 33. Insulating plates 16, 17, are centred on compression rod 20 by means of co-axial barrels 18, 19, and adjacent member sets 16, 17, and 16<SP>1</SP>, 17<SP>1</SP> are interlocked by nipples 24 engaging in recesses 25 in members 16<SP>1</SP>, 17 respectively. The connecting device is inserted through an aperture (4, Fig. 2, not shown) in sheathing 1 and a cover 2 over the aperture may not be fitted until lever 10 has been rotated to correctly engage its respective ramps. In a further embodiment (Fig. 4, not shown), the ramps are provided by the threading between compression rod (40) and a hexagonal retaining member 43, which, when excessive turning force is exerted thereon, acts against linear spring members (46) which on deformation, allow rotation of the retaining member and nullification of the turning force as the engaing apex (48) thereof is forced round past the spring member.