baber/WOPTO huggingface dataset:
Patent GB-745263-A (GB)
Title: Improvements relating to the manufacture of powder-insulated electric cables
Inventor: MCCLEERY JAMES ALEXANDER
IPC: H01B13/30
Filed: 1953-09-10
Abstract: 745,263. Cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Sept. 9, 1954 [Sept. 10, 1953], No. 25087/53. Class 36. A cable comprising one or more conductors insulated by powder and enclosed in a metal tube is made by assembling the conductors 2 in a tube 1, sealing the ends of the tube, removing air from the tube and from the powder to be charged into the tube, replacing the air so removed by another gas under pressure charging the tube with the powder and tamping the latter around the conductors. The powder is fed from container 4 into a funnel 6 attached to the upper end of tube 1 and as it falls into the tube it is tamped by a ram. The ram rod 9 is connected to a piston 11 working in cylinder 12 by a piston-rod 13 and sleeve 14 which engages the ram-rod frictionally so that the ram may rise as the powder in tube 1 rises. A valve 27 is provided between the container 4 and the tube 1. The funnel 6 has a gas-tight cap provided with a gland 29 for the passage of the ram-rod. A gas-tight plug 30 and a gland 31 are provided at the lower and upper ends respectively of tube 1. A vacuum pump 17 is connected with filter 18 and by opening valves 21, 25 the tube 1 is evacuated, and by opening valves 21, 37 the container 4 is evacuated. Gas under pressure is supplied from a cylinder 32 to tube 1 by opening valves 35, 25 and to container 4 by opening valves 35, 37. When pressures are equal in the tube and the container, valve 27 is opened to commence feeding the powder from the container 4 to the tube 1. After completely filling the tube with powder, the assembly may be drawn through a die to reduce the diameters of the tube and conductors and increase their length.
Patent GB-514295-A (GB)
Title: Improvements in and relating to bearings for spindles
IPC: G01R11/12
Filed: 1938-03-01
Abstract: 514,295. Alloys ; bearings. ENGLISH ELECTRIC CO., Ltd. March 1, 1938, No. 25143/39. Convention date, March 1, 1937. Divided out of 514,252, [Group XXXIV]. [Class 82(i)] [Also in Group XXXIV] The pivot member of a pivot bearing for a meter or the like is made of a gold alloy containing also other noble metals and non-noble metals, particularly platinum group metals, silver, copper, and zinc. Examples containing specified proportions of gold, platinum, silver, copper, and zinc, with or without palladium, are described. The pivot may be in the form of an insert carried by a shank of harder material such as stainless steel.
Patent GB-920160-A (GB)
Title: Percussive tool
IPC: B25D11/06
Filed: 1961-07-12
Abstract: 920,160. Compressed gas engines. GARDNER-DENVER CO. Jan. 12, 1961 [Dec. 7, 1960], No. 25167/61. Class 122 (3). [Also in Group XXIII] A pneumatic tool comprises a cylinder 12, a hammer piston 16 reciprocable in the cylinder, a distributing valve 24 at one end of the cylinder, a tool 19 at the other end of the cylinder adapted to be struck by the piston, and spacers 30, 32 for varying the blow of the piston and insertable between cylinder and valve. When the piston gives its lightest blow and shortest stroke, both spacers are housed in a head 20, and the spacer passages 56, 57 are aligned with the inlet passage 54 of the valve. When the piston gives its heaviest blow and longest stroke both spacers are placed between the valve and the cylinder, and the spacer passages 58, 59 are aligned with the outlet duct 51 from the valve. The head has a handle with an operatorcontrolled starting valve.
Patent GB-1270298-A (GB)
Title: Igniter for explosive charges
Inventor: BROCART ALAIN
IPC: H04N9/465
Filed: 1969-05-16
Abstract: 1,270,298. Moulding tubes. FRANCE ARMED FORCES MINISTER OF. 16 May, 1969 [17 May, 1968], No. 25207/69. Heading B5A. [Also in Division F3] A tubular body is prepared from an aqueous suspension containing 81% nitrocellulose (13.35% N), 9% cellulose, 9% acrylonitrilic latex resin binder and 1% diphenylamine by squeeze-draining the suspension, introducing it into a two-shell, perforate cylindrical mould containing an axial metal rod to form an axial channel in the moulded body, removing water by further squeezing, and finally heating the mould to bring the moulded body to an apparent density of 0À6 gm/c.c.
Patent GB-1390332-A (GB)
Title: Motion alarm system
IPC: G01P13/04
Filed: 1973-05-25
Abstract: 1390332 Road-vehicle signalling apparatus CATERPILLAR TRACTOR CO 25 May 1973 [12 June 1972] 25213/73 Heading G4Q [Also in Division H3] An alarm is given when a vehicle moves backward (or forward) by electronic gating of power to the alarm indicator, the gating being controlled by sensing means producing a pair of signals on wheel rotation and means differentiating between the sequential order of the pair of signals. In an embodiment, applied to an earth-moving vehicle, it is desired that a horn 23 be energized when wheel 11 rolls backward even though the vehicle is parked. The element gated is a silicon controlled rectifier (SCR) 27 having a control gate 28, the sensing means is a permanent magnet 13, on brake drum 12, cooperating with reed switches 84, 86 and a logic circuit 56 controls the actuation of a lowfrequency (bleeps at 1À5 Hz) oscillator 33. The circuit described includes switches associated with forward-neutral-reverse lever 14, and is designed to operate to sound an alarm when (i) the vehicle is being operated with lever 14 moved to "reverse", (ii) there is rearward movement regardless of the position of lever 14 and of the condition of a manually operable switch 97, (iii) there is forward movement not deliberately initiated. In the above embodiment horn 23 is assumed to be of the kind which includes a mechanism 23<SP>1</SP> cyclically opening the circuit between terminals 24, 26 thereby effectively cyclically opening the anode-cathode circuit of SCR 27 to stop conduction when the gating signal is removed from gate 28. If such a horn (or a visial alarm) device is not utilized a modification is incorporated, Fig. 2 (not shown), in which SCR 27 is replaced by an SCR (27a) which is an internal component of a D.C. flasher circuit operating at an audio frequency (see Division H3).
Patent GB-1507899-A (GB)
Title: Implement for threading cords
IPC: A41H31/00
Filed: 1976-06-09
Abstract: 1507899 Gripping tools IMC MURDOCH 9 June 1976 [13 June 1975] 25311/75 Heading B4W  An implement for threading cords through waistband tunnels comprises a rigid portion 2 and jaws 6 at one end for gripping the cord the jaws being pressed together by a quick-release over-centre cam mechanism 13, 17.
Patent GB-752049-A (GB)
Title: Improvements in and relating to self-aligning conveyor belt idlers
IPC: B65G39/16
Filed: 1954-09-01
Abstract: 752,049. Idlers for conveyer belts. JOY. SULLIVAN, Ltd. Sept. 1, 1954 [May 21, 1954], No. 25415/54. Class 78 (1). An idler for a conveyer belt of the kind pro. vided with a transverse supporting frame pivoted on a base plate and which, in the event of the belt conveying run being displaced laterally, is turned about its pivot to restore the belt to its central position, comprises a troughing roller 47 supported by member 43' on brackets 41 secured to the ends of a channel member 31 which is mounted so as to pivot about a stud 37 fixed to a base plate 18. The return run 13 of the belt is supported by members 20 which are secured to the plate 18 and provided at their ends with posts 23 carrying brackets 24. Each of these brackets is slotted at 25 to receive a T- head 26 on an element 27 which maintains adjacent plates 18 properly spaced and connected. Members 29 on the plate 18 prevent excessive tilting of the member 31 in the event of a heavy off-centre load being carried by the belt run 12, whilst the swivelling movement of the member 31 is limited by engagement with the members 20. When the belt wanders from its central position, it engages the surface 54 on a shoe 53 secured to a member 43 so as to rotate the member 31 about the stud 37 and effect return of the belt to its central position. Specification 751,981 is referred to.
Patent GB-1347894-A (GB)
Title: Mould for electroslag remelting
IPC: C22B9/18
Filed: 1971-04-19
Abstract: 1347894 Moulds INSTITUT ELEKTROSVARKI IMENI E O PATONA AKADEMII NAUK UKRAINSKOI SSR 19 April 1971 [23 March 1970] 25440/71 Heading B3F Castings with cored through or blind bores are manufactured by electroslag remelting. The moulds used include cooled cores extending over only part of the vertical extent of the mould. In Fig. 3, a hollow ingot with a blind bore is manufactured in a mould 1 having a core 2 comprising a water-jacket 3 and solid centre 4. The core 2 extends from the mould base-plate although in another embodiment (not shown) it extends from the mould wall. Several cores may be used (not shown) to manufacture a blank for pressing multi-channel tubes. When making a crankweb for a ship's diesel engine a mould 1 (Fig. 8) is provided with a curved baseplate and a cooled core 2 extending between two opposing mould walls. An electrode 9 has a hole through which the core passes.
Patent GB-591413-A (GB)
Title: Improvements relating to pressure control valves
IPC: B64C25/22
Filed: 1944-12-19
Abstract: 591,413. Fluid-pressure servomotorcontrol systems. JENNINGS, H. W. K. (Electrol, Inc.) - Dec. 19, 1944, No. 25479. [Class 135] An unloading valve for a hydraulic system has a main piston valve member 56 formed with a peripheral groove accommodating a rubbery ring 57 to effect a liquid-tight seal. A pressure liquid inlet 11 communicates, through a spring-loaded check valve 27, with a pressure liquid outlet 13, and communication between the inlet 11 and a low pressure byepass port 12a is controlled by the valve member 56, in accordance with variations in liquid pressure in the, outlet 13 transmitted to a control ball valve 37 through a passage 33. The' ball 37, which is urged towards a seat 34a by an adjustable spring 45 is adapted, at a predetermined pressure in the outlet 13, to move against the spring to a seat 40b of larger area than that of the seat 34a. When the ball is so moved, pressure liquid passes' through passages 40d, 50 to a spring-loaded piston 51 connected to the main valve, thus moving the main valve to the right and placing the inlet in commmication, with the byepass 12a, the check valve closing whilst byepassing takes place. At a lower predetermined pressure, depending upon the ratio of the of the seats 34a, 40b the ball 37 is returned by its spring, to the seat 34a and the liquid pressure acting on the piston 51 is relieved through passages 50, 40d, 40a, 41c, an annular space 58 and a passage 59 to the low pressure port 12a, allowing the main valve to be closed by the spring 60.
Patent GB-975561-A (GB)
Title: Improvements in or relating to eddy current testing of metals
Inventor: BAUGH TREVOR JOHN
IPC: G01N27/90
Filed: 1960-07-22
Abstract: 975, 561. Detecting flaws in metal; measuring bridges. HENRY WIGGIN & CO. Ltd. July 14, 1961 [July 22, 1960], No. 25639/60. Headings G1N and G1U. In an eddy current testing apparatus, a repetitive reference signal is applied to a coincidence circuit to define the periods during which an indicator can receive a repetitive signal derived from the test coil signal, the timing of the occurrence of the pulses constituting the derived signal being determined by the phase of the test coil signal. Since the variation of phase of the test coil signal produced by a fault in the specimen under test is dependent upon the type of fault, the presence of faults only of a selected type can be investigated by appropriate adjustment of the timing of the occurrence of the pulses of the reference signal relative to the phase of the A. C. applied to the test coil. The reference signal applied to coincidence circuit 4 is derived from the crystal controlled' oscillator 3, Fig. 1, which also supplies the test coil 1 and the bridge, Fig. 2, in which it is connected. The duration of the square pulses constituting the reference signal, and their timing with respect to the phase of oscillator 3, is controlled by the adjustment of square wave generator circuit 7, and the phantastron circuit 6, respectively. A signal constituted by repetitive short duration pulses, derived from the out-of-balance signal of the bridge by circuits 8, 9, and 17 is also applied to the coincidence circuit, whereby a coincidence between the reference and out-of-balance signal, throughout its duration, keeps open gate 10 to allow the out-of-balance signal of the bridge to pass via terminal 11 and switch 15 to a recorder 13, an alarm 14, and mechanism for marking the defect. Alternatively, terminal 16 of switch 15 allows the out-of-balance signal to be applied directly to the recorder, regardless of its phase. The bridge 2 has three resistive arms, one of which includes a thermistor 24 with heating coil 26, and the test coil 1 in the fourth arm in series with a variable capacitor 22 and a toroidal transductor, the inductance of coil 23 of which is adjustable by the current in coil 25. The bridge is rendered self-balancing by feeding back the out-of-balance signal to components 25 and 26. The reaction of the latter is arranged to be sufficiently sluggish to render the apparatus sensitive to discrete faults, such as cracks, but insensitive to gradual changes due, e.g. to variation in heat treatment, internal strain, or chemical composition. Alternatively, to examine the latter, manual balancing may be employed. Test frequencies of 1, 5,10, and 50 kc/s may be employed; ferromagnetic material may be examined if magnetically saturated during the test; and the apparatus may be calibrated in terms of the phase change produced by different types of fault by the use of mercury models.
Patent GB-1044868-A (GB)
Title: Improvements in continuous quality indicator for cigarette maker
IPC: G07C3/14
Filed: 1965-06-17
Abstract: 1,044,868. Cigarette-making machines. AMERICAN TOBACCO CO. June 17, 1965 [Aug. 20, 1964], No. 25653/65. Heading A2C. Apparatus for measuring the quality of a rod of tobacco moving past a sensing station comprises a radiation gauge for producing a deviation signal 10 proportional to the deviation of the density of the rod at the sensing station from a standard value of density and a circuit for operating upon the deviation signal in a non-linear manner to produce an integrand signal varying as a function of the deviation signal raised to a power greater than unity, means for integrating the integrand signal over a period of time, and means for indicating the result of the integration. The deviation signal after being amplified at 12 is rectified at 13 and fed to a non-linear voltage divider comprising diodes 16-18 and resistors 18-22, the integrand signal being developed across a resistor 15. The integrand signal is integrated by a resistor 23 and capacitor 24 network. A timer controller 27 periodically closes the switch 26 to feed the signal across the capacitor 24 through an amplifier 28 to two trigger switches 29 and 30, the threshold values of which are adjusted so that switch 29 is switched on when the weight distribution deviates from an acceptable value and switch 30 is switched on upon a greater deviation. When switch 29 operates, contact 33 is opened to switch off a green light 35 and contact 34 is closed to switch on a white light 36. When switch 30 operates, contact 37 is opened to switch off the white light and contact 38 closed to switch on a red light 39. The controller 27 then opens switch 26 and momentarily closes switch 40 to discharge the capacitor 24 ready for the next signal reading. Prior to the next closure of switch 26 the controller 27 re-sets the trigger switches 29 and 30 by means of the switch 41.
Patent GB-601819-A (GB)
Title: Manufacture of a synthetic resin
IPC: C08G75/00
Filed: 1945-10-03
Abstract: A thermoplastic resin-like substance is prepared by treating a warm aqueous solution of thio carbamide at about 50 DEG  C. with a soluble sulphite and the resultant mixture also at about 50 DEG  C. with copper sulphate solution until the mixture is tinted blue and separating and cooling the lower liquid phase of the mixture.  Up to 10 per cent by weight of a soluble thiocyanate, dicyandiamide or hexamethylene tetramine may be added to the thiocarbamide, and the solution may be neutralised before the addition of copper sulphate. In example 1, 10 parts of thiocarbamide dissolved in 100 parts of water at 50 DEG  C. are treated with 5 parts of sodium bisulphite and 0.25 parts of sulphuric acid with agitation at about 50 DEG  C. for 15 to 30 minutes.  A concentrated solution of copper sulphate at 50 DEG  C. is slowly added, about 15 parts of CuSO4,H2O.  A white ppt. formed when agitation is stopped, settles out as a very viscous liquid which is dried to form a hard clear resin-like body.  Example 2 is similar with the addition of 0.75 parts of ammonium thiocyanate to the thiocarbamide.
Patent GB-167442-A (GB)
Title: Improvements in or relating to means for limiting the speed of vehicles
IPC: B60K31/12
Filed: 1920-09-06
Abstract: 167,442. Renault, L. July 31, 1920, [Convention date]. Actuated by speed regulators.-A device for limiting the maximum speed that can be attained by a motor vehicle consists of a pair of brake segments 5, 6 pivoted on pins 3, 4 carried by a member 2 mounted on the transmission shaft 1, preferably between the gear box and the rear axle of the vehicle. The segments 5, 6 are maintained in normal or inoperative position by plate springs 7. 8 secured to the member 2 and by two gripping-levers 9, 10 which engage two tooth-like projections on the segments. The levers 9, 10 are pivoted to parallel links 13, 14, the parts forming a parallelogram, and are held in engagement with the segments 5, 6 by springs 11, 12. When the speed of the vehicle rises above the point at which the centrifugal force acting on the brake segments 5, 6 balances the tension of the springs 11, 12, the segments are withdrawn from the levers 9, 10 and engage a fixed braking surface 15 to prevent a further increase in speed. The arrangement is such that the braking action continues until the speed has fallen considerably. Stops 16, 17 on the member 2 limit the outward movement of the levers 9, 10.
Patent GB-895384-A (GB)
Title: A method of preparing grain oriented sheet metal
IPC: B22D27/04
Filed: 1958-08-11
Abstract: A method of preparing cube texture soft magnetic sheet metal from a seeded columnar grained ingot consisting essentially of iron and either silicon, aluminium or molybdenum, comprises reducing the casting into sheet metal by a multiplicity of rolling passes the longitudinal axes of the grain columns being maintained parallel to the rolling plane and perpendicular to the rolling direction during rolling, a majority of the elongated grains having a unit cube face of their crystal lattices parallel to the longitudinal axes of the grain columns and perpendicular to a single direction which is perpendicular to said longitudinal grain axes, said single direction being maintained perpendicular to the rolling direction, and heat treating the rolled sheet metal to recrystallize the worked metal. In an embodiment an alloy composed of about 3% Si, about 0,04% C and the balance iron is cast into a tubular mould of fused Al2O3 supported on a water cooled copper block.  The interior side walls of the mould are heated to 1200 DEG C. to 1400 DEG C. prior to pouring and the temperature of the copper bottom is maintained at 20 DEG C. during the casting.  The cast ingot has a columnar grain structure and a seed slab is cut therefrom to fit a mould.  The seed slab, supported on the water cooled copper block in the mould, is heated to about 1300 DEG C. and a molten alloy composed of about 3% Si, ,04%C and balance iron is poured in the mould.  A slab 0,300 inch thick is cut from the cast ingot the longitudinal axes of the columnar grains running parallel to the slab faces.  The slab is heated to 1000 DEG C. and reduced in 8 rolling passes to 0,083 inch thick without reheating, the longitudinal axes of the grains being maintained parallel to the rolling plane and perpendicular to the rolling direction.  The hot rolled strips are then reduced at 400 DEG C. to about 0,025 inch and finally annealed in a dry hydrogen atmosphere by heating to 1000 DEG C. for 4 hours and rapidly cooled.  The oriented seed slab may be composed of an alloy differing from the melt providing it has the same melting point. Specification 870,213 is referred to.
Patent GB-970702-A (GB)
Title: Grounded electrical plug construction
IPC: H01R13/652
Filed: 1963-06-28
Abstract: 970,702. Two-part couplings. M. MORSE. June 28, 1963 [July 3, 1962], No. 25745/63. Heading H2E. The earthing pin of a plug connector is pivotally mounted within the plug body, a spring 76, Fig. 3, engaging in a groove 57, Fig. 4, at the end of the earthing pin, resiliently maintaining the portion 51 of the pin in parallel relationship with the power pins 12, 13. When the plug is coupled to a two-hole socket, the earthing pin is urged against the metallic cover of the socket receptacle by the spring bias, but can pivot about the axis of portion 50, mounted in a bushing 44. The spring is mounted around a projection 69 (Fig. 3) within a recess 22 in one wall of the plug body. Specification 865,510 is referred to.
Patent GB-1044016-A (GB)
Title: Optical system of variable focal length
IPC: G02B15/14
Filed: 1963-06-28
Abstract: 1,044,016. Variable focal length objectives. SOC D'OPTIQUE ET DE MECANIQUE DE HAUTE PRECISION. June 28, 1963 [July 11, 1962], No. 25798/63. Heading G2J. An objective in which the image passes four times through a single phase as the focal length is varied comprises a pair of members L 2 , L 8 , which are coupled for simultaneous displacement and a third member L 5  which is between the other two members and is also movable but at a different rate and in the opposite direction. The members L 2 , L 8  move a distance d from S 1  and B to A and S 9  respectively whilst member L 5  moves a distance 2x from B to A the relative displacement of member L 5  being substantially proportional to 2x/d. Members L 2 , L 8  may be convergent and L 5  convergent Fig. 5, (not shown) or divergent Fig. 10, (not shown) or L 2 , L 8  may be divergent and L 5  convergent, Fig. 6, (not shown).
Patent GB-264243-A (GB)
Title: Improvements in and relating to electric fuse boxes
IPC: H01H85/20
Filed: 1925-10-16
Abstract: 264,243. Abbott, F. W. Oct. 16, 1925. Fastenings for boxes.-In fuse boxes in which the fuses are carried on cross-bars a hinged to the box, the free end of each bar a is latched to the box by a catch which may comprise, Fig. 3, a member h pivotad to the end of the bar a and having a hook m to engage a pin on the lid of the box and a double hook to engage a pin l on the box itself. The lid may thus be opened although the bar a is latched to the box by the pin l engaging the corner k of the slot in the catch, and the bar a may be swung open by moving the catch so that the gate between the hooks j is in line with the pin l.
Patent GB-1191575-A (GB)
Title: A Method of Manufacturing a Pneumatic Vehicle Tyre.
IPC: B60C9/07
Filed: 1968-05-30
Abstract: 1,191,575. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G. 30 May, 1968 [5 July, 1967], No. 25887/68. Heading B7C. A pneumatic tyre has carcase reinforcement cords 7 which cross the mid-circumferential plane 13 at an angle of between 5 and 30 degrees in the tread region and are bent during manufacture to run radially down the sidewalls, round the bead wires 5 and back to the shoulders. The cord ends 11 may extend diagonally back into the tread region, crossing their central portions lying therebeneath. The stresses in the two layers of distorted ply cancel each other and produce, after inflation and vulcanizing, a tyre with radial sidewall cords and strengthened shoulders. Three tread reinforcement plies are provided, the cords in one ply lying in the same direction as the cords 7 in the tread region, whilst the cords of the other two plies cross the said cords 7 in that region.