baber/WOPTO huggingface dataset:
Patent GB-377228-A (GB)
Title: Improvements in or relating to pistons for use in fluid pressure engines
IPC: F02F3/28
Filed: 1931-04-22
Abstract: 377,228. Pistons. DOYLE, D., 33, Maitland Road, Sydenham, London. April 22, 1931, No. 11925. [Class 122 (i).] To permit removal of a piston from its cylinder for inspection without disconnecting the big end joint, the gudgeon pin carrier e is connected to the piston crown by means of a bayonet joint c, h locked in position by a screw j pass. ing through a hole in the spigot h. The gudgeon pin bosses may be integral with the piston skirt in which case the piston head may be of aluminium alloy and the skirt of cast iron.
Patent GB-1025561-A (GB)
Title: Laminates of sheet material and polyurethane foam
Inventor: EVANS JOHN GWYNANT
IPC: D06M15/267
Filed: 1961-04-04
Abstract: Loose fibre material e.g. viscose flock, may be bound to polyurethane foam by means of an adhesive acrylic ester polymer or co-polymer which is cross linkable and catalysed by acids. Preferred adhesives are obtained by co-polymerizing esters of acrylic or methacrylic acid with methylolated acrylamide or methacrylamide or their ethers with or without the ethylenically unsaturated monomers styrene, acrylic acid, acrylamide, acrylonitrile, maleic acid, vinyl chloride, vinylidene chloride and butadiene.
Patent GB-1182361-A (GB)
Title: An Arrangement for Measuring Angular Displacement Differences
IPC: G01L3/10
Filed: 1967-03-15
Abstract: 1,182,361. Phase discriminators. JUNGNER INSTRUMENT A.B. 15 March, 1967 [16 March, 1966], No. 12071/67. Heading H3A. [Also in Division G1] The phase difference between two signals of equal amplitude from two transducers in a torque measuring device (see Division G1) is measured by feeding the signals to the bases of transistors 26, 27, Fig. 5, the collectors being supplied with a D.C. voltage Vs through resistor 28. The emitter current is found to be proportional to the phase difference # and is given by Us.(#/2#).
Patent GB-836562-A (GB)
Title: Improvements in nuclear reactor fuel element handling plant
Inventor: TAYLOR RICHARD ARTHUR
IPC: G21C19/32
Filed: 1956-04-20
Abstract: 836,562. Handling materials in radioactive environment. BABCOCK & WILCOX Ltd. April 18, 1957 [April 20, 1956], No. 12127/56. Class 39(4). [Also in Group XXX] Spent rod-like fuel elements are transferred from the top 3 of a concrete reactor housing 2 to a pond 90 by a helical shoot 12X or 12Y into either one of which a fuel element may be dropped from a loading machine 5. The machine 5 is movable on railway tracks 4 to the various element-collections on the top 3 and the filled machine is brought to a desired one of a pair of discharging positions corresponding to the entrances to the shoots. The lower end 12DX of the shoots lie spaced from each other in the same horizontal, or substantially horizontal plane, Fig. 2 (not shown), and each shoot terminates in a discharge chamber 13X. Frictional forces brake the descent of a fuel element so that it would come to rest within the end 12DX; however, the element is driven into the chamber 13X by water jets 48, 49 arranged in upper surface of the shoot. The elements are removed from the discharge chambers in a skip 103 on a hoist carriage 102 running on inclined tracks 101, a transporter crane 120 moving a skip from its carriage to a desired part of the pond 90. Each discharge chamber has its own hoist carriage and the arrangement is as described in Specification 808,381 (see Group XL(a)). The shoots are formed of cast iron twelve inches thick for biological protection and the helical parts are divided into sections about five feet six inches long each section having a thick lid 19. The sections are secured end to end by bolts in lugs 22 and the spaces therebetween caulked with lead and aluminium. Each section may be removed and lifted upwards within the chamber 18 without disturbing adjacent sections and to this end the junctions between adjacent sections are each supported on a single cradle 27 carried by a steel framework 25, 26, Fig. 5 (not shown). Should fuel element prematurely come to rest within the helical part of a shoot it may be dislodged by high pressure water jets provided in alternate shoot sections ; alternatively, cast iron plugs 36 may be removed and pole rods inserted in the holes 35.
Patent GB-960313-A (GB)
Title: A new or improved universal joint
Inventor: BRADFIELD ALAN HERBERT EDWARD
IPC: F16D3/68
Filed: 1962-03-29
Abstract: 960,313. Universal joints. CAM GEARS Ltd. April 1, 1963 [March 29, 1962], No. 12184/62. Headings F2S and F2U. A motor-vehicle steering column universal joint comprises fork-ended members 3 spaced at right-angles to each other on the surface of an intermediate ball 5 by rubber, or metal, drive transmitting sectors 7 retained by a casing which may be formed by two cupshaped shells 11, 12 secured together at their opposed rims by a series of tongues 13 pressed into interengagement and retained by a snapring 14, pre-compressing the rubber sectors 7, or may be formed from a length of metal tube passed over the assembled joint components and pressed around them to form an outer shell. Both the intermediate ball 5 and sectors 7 may be of a resilient material, moulded into a single unit.
Patent GB-271069-A (GB)
Title: Improvements in or relating to lathes for turning profiled articles
IPC: B23Q27/00
Filed: 1927-05-06
Abstract: 271,069. Rapide Mecanique Co., Ltd., (Assignees of Barba, A.). May 11, 1926, [Convention date]. Lathes; milling. -- In a machine for making profiled articles, the rotating woik is shaped by means of a profiled tool which has its axis perpendicular to the work axis and is rolled along the work in the direction of the work axis in such a way that the enveloping curve of successive positions of the tool cutting edge gives the required section to the work in the plane of movement of the cutting-edge. The work 5 is held between a chuck 2 driven by a pulley 3 and a back centre 4 mounted in a block 6 over which slides a saddle 7. The saddle is moved longitudinally by means of rack and pinion gearing 8, 9, which is operated through gearing 14, shaft 13, and worm gearing 12. Two similar opposed tools 15, 15<1> having cutting-edges in a plane parallel to the work axis, are mounted on the saddle and are rotated during the longitudinal traverse to produce the ,required profile on the work. In order to ensure approximately correct rolling of the tools on the work notwithstanding the irregular shape of the tool, the tool-spindles 16, 16<1> carry gears 17 - - 19 and 17<1> - - 19<1> respectively, these gears engaging racks 20 - - 22 and 20<1> - - 22<1> which are adjustably spaced along a Z-bar 23 so that different racks come into engagement with their respective pinions to modify the speed of rotation of the tools according to the varying radius of the effective portion of the cutting-edge. The plane PP of the cutting-edge is located at a distance l from the parallel plane containing the work axis in order to obtain the correct cutting-angle d. To manufacture the tools 15, 15<1>, the section of the desired finished work-piece on the cutting plane PP is first determined and a milling-cutter 25 having cutting-edges of the shape thus found is produced. The tool blank 26 is then rolled along the rotating cutter in the same way as the tool is subsequently rolled over the work-piece. Axial feed is imparted to the tool blank after each rolling traverse until the tool is completed.
Patent GB-784128-A (GB)
Title: Envelopes
Inventor: REED SIDNEY THOMAS
IPC: B65D27/18
Filed: 1953-05-04
Abstract: 784,128. Envelopes. JONES & CO., Ltd., S. April 27, 1954 [May 4, 1953], No. 12341/53. Class 146(2) The sealing flap only of an envelope is coated with a heat sensitive adhesive which is not tacky at normal temperature but becomes tacky when heated. The adhesive may remain tacky for a substantial period after cooling, and may consist of a potentially viscid polymeric material. throughout which is distributed crystalline particles of a plasticizer for that material. Specification 549,764 is referred to.
Patent GB-1468393-A (GB)
Title: Temperature control system for a space
IPC: F23N5/14
Filed: 1974-03-20
Abstract: 1468393 Temperature control MAXITROL CO 20 March 1974 [4 April 1973] 12457/74 Heading G3R In a space-heating system, the supply of gas to a burner F, Fig. 1, is controlled by units 15, 16 which govern the operation of two gas-supply valves 12, 14 connected in series. Valve 14 is an 'on-off' valve which opens when the temperature falls below a set value and valve 12 a modulating valve whose degree of opening varies with temperture. Fig. 2 shows the circuitry of units 15 and 16 of Fig. 1. Unit 15 delivers an output at A representing the difference between a temperature set at RS and the temperature sensed by a thermistor RT. In unit 16, the coil MR is energized in proportion to the temperature-difference output and this coil controls the degree of opening of the valve 12. By means of a delay circuit Fig. 3, (not shown) it may be arranged for valve 12 to be temporarily held in a fully-open state when valve 14 is first opened, temperature-proportional operation of valve 12 ensuing after the delay time has elapsed. The valve 14 is opened and closed by relay coils K1, K3, 14c. K1 is energized by a too-low sensed temperature; K3 is energized provided (a) the power is on and (b) an overtemperature cut-out SW1 in unit 15 has not operated. When both K1 and K3 are energized, their respective contacts K1c and K3a effect energization of coil 14c thereby opening valve 14. Units 15 and 16 are separate modules. If unit 15 is replaced by a unit (15') Fig. 5 (not shown) containing switches for selecting between heating and cooling modes and for operating a blower, control of an installation having a burner, a refrigerator and a blower can be effected without modifying unit 16, since the latter contains the necessary extra relays (KC1, KB). To provide for two-stage cooling, suitable extra circuitry Fig 6, (not shown) may be added.  The invention embraces a pure heating system employing the two gas valves in series, of which the on-off valve is operated by the above-described system of relays; it also embraces the incorporation of the same arrangements in a combined heating/ cooling system. Certain arrangements peculiar to the combined heating/cooling system form the subject of the divisional Specification 1468394.
Patent GB-1167768-A (GB)
Title: Improvements in or relating to Synchronzing Sleeves for use in Gearboxes
IPC: F16D13/66
Filed: 1967-03-16
Abstract: 1,167,768. Positive clutches. SOC. ANON. DE VEHICULES INDUSTRIELS ET D'EQUIPEMENTS MECANIQUES SAVIEM. 16 March, 1967 [16 March, 1966], No. 12474/67. Heading F2C. The friction surface 1 of a synchronizing cone of a gear-box dog clutch is formed with a multi-start thread 2 by which oil is scraped from the co-operating internal surface of a gear during relative rotation between the cone and the gear up to synchronization. The number of starts may be related to the relative rotation up to synchronization, e.g. a 4-start thread for a quarter of a revolution. The thread may be interrupted by substantially axial grooves (3) to assist in oil removal, or may be such as to assume approximately the form of helical gear teeth.
Patent GB-717319-A (GB)
Title: Electric cable connector
Inventor: CARTER SYDNEY HORACE
IPC: H01R4/24
Filed: 1951-05-28
Abstract: 717,319. Cable couplings. TURNOCK, Ltd., G. Aug. 26, 1952, [May 28, 1951.] No. 12482/51. Class 38(1). A cable connector comprises two insulating clamping members 1, 2, the member i having pairs of grooves 3, 4 at right-angles and the member 2 having metal spikes 8 electrically connected by a metal plate 9. The cables to be connected together are placed in the grooves, the parts 1, 2 are located by pins 10 and holes 11 and then screwed together, the spikes thus piercing the insulation of the cables. The spikes may be divided into several groups insulated from one another to connect two or more sets of cables together. Terminal posts may be provided for the spikes or each group of spikes. The channels may, alternatively, be blind and arranged radially to accommodate cable ends, or be of varying sizes to accommodate different numbers and thicknesses of cables. The conductive parts may be moulded in clamping members of plastic material. Specifications 661,480 and 699,856 are referred to.
Patent GB-857683-A (GB)
Title: Improvements in swash-plate pumps having plunger controlled inlet parts
IPC: F04B1/14
Filed: 1958-04-21
Abstract: 857,683. Swash plate pumps. NEW YORK AIR BRAKE CO. April 21, 1958 [May 17, 1957], No. 12532/58. Class 102(1). Inlet ports formed in the walls of each of the cylinder bores of a swash plate pump and controlled by the pistons comprise a pair of diametrically opposed arcuate ports 51 centred on a longitudinal plane radial to the cylinder block axis A and connected to the liquid supply by acute angled bores 52 so that liquid flow is in the direction of discharge through the end of the cylinder bore. The parts lie wholly between radial planes passing through the axis A and tangential to the cylinder bore and the angular interval W between the ports is materially greater than the angle M subtended by the bore about the axis A. Specification 626,218 is referred to.
Patent GB-246783-A (GB)
Title: Improvements in or relating to vessels or parts of vessels of aluminium sheets or sheets of similar characteristics
IPC: B21D51/26
Filed: 1925-05-14
Abstract: 246,783. Warchalowski, A., Jan. 29, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Hollow-ware.-Aluminium hollow-ware articles, particularly the bottoms of thick-walled boilers, are stated to be formed by a, pressing or stamping operation. The sheet aluminium is first formed with an upstanding rim portion and the convex bottom is then formed by pressing the blank into a hollow die. It is stated that in some cases double conical pressure rollers, arranged symmetrically round the work, are employed. Preferably the sheet is heated directly bv a flame and the die serves as a means for conducting and storing the heat.
Patent GB-972582-A (GB)
Title: Subsurface well tools
IPC: E21B33/1295
Filed: 1962-04-02
Abstract: 972,582. Wells. BAKER OIL TOOLS Inc. April 2, 1962 [April 3, 1961], No. 12565/62. Heading E1F. A well packer comprises a body, normally retracted packing on the body, hydraulic means actuated by the hydrostatic head of fluid in the well, means to prevent the head accidentally operating the hydraulic means, and means to counteract the effect of the head on the hydraulic means to permit retraction of the packing. The body, which includes a head 16, a member 13 fixed to the head, a housing 78 fixed to the member 13, a connector 30 slidable on the member 13, and a member 12 fixed to the connector carries the packing 48, a slip expander 44, slips 62, slip ring 65, and a resilient member 73 which are slidable on the members 12, 13. The packer is lowered into a well having two production zones on tubing 10 screwed to the member 30 until an extension of the member 12 seats in a lower packer (not shown) disposed between the zones. A ball 116 is dropped down the tubing 11 and fluid is pumped behind the ball to shear a pin 110 and move a sleeve 106 to open a duct 105, the ball finally falling to the bottom of the well so that the duct is subjected to the head of fluid in the tubing 11 and casing B. The head forces pistons 91 (Fig. 12) upwardly within the housing to move an abutment 75, the member 73, and the slip ring upwardly on the members 12, 13. The slips engage the casing and carry the expander upwardly towards the connector to expand the packing. After the packing has expanded the slips engage the casing and the member 73 is expanded to set the packer. After the packer is set fluid from the lower zone passes upwardly through the extension, the member 12 and tubing 10 to the surface whilst fluid from the upper zone passes through lower tubing 82, the member 13 and the tubing 11 to the surface. The packer is released by pulling on the tubing 11 to release and remove it from the head, by unscrewing the tubing 10 from the connector and pulling it to elevate the head and move the member 13 upwardly within the connector by an amount determined by a stop 37. The upward movement of the member 13 aligns ports 108, 118 so that fluid flows into the air-filled spaces above the pistons to remove the hydrostatic setting force. The parts of the packer may be retracted and the packer removed from the well by continuing to pull the tubing 10 upwardly. In a modification the member 73, which holds the slips against the expander to prevent upward movement of the packer, is dispensed with, the slips are designed to hold the packer against downward movement only, and hydraulically operated grippers are mounted on the head to prevent upward movement of the packer.
Patent GB-543094-A (GB)
Title: Improvements in knife sharpening machines
IPC: B24B3/54
Filed: 1940-08-05
Abstract: 543,094. Sharpening knives. RENFREW, A. R. Aug. 5, 1940, No. 12599. [Class 60] In a knife sharpening machine having a mechanically driven grinding-wheel and a guide slot to guide the knife, the wheel is peripherally driven by an electric motor and is arranged with its axis angularly disposed in a horizontal plane relatively to the guide ; the knife being sharpened on one side to form a chisel edge. The motor-driven spindle carries a gravitywheel 8 at one end, enclosed in the guide 9, 10, and a polishing mop 7 at the other. The spindle is mounted at an angle, as shown in Fig. 2, adjustable by screws and arcuate slots that clamp the motor to the base. The projection of the wheel relatively to the guide is varied by adjusting the base laterally in the casing 1. The guide comprises a fixed part 9 and a part 10 inter-changeable to vary the width of slot 13, the slot being at an angle to the wheel as shown in Fig. 1. The edges of the guide slot are gapped to pass the hilt of the knife and permit the full length of blade to be ground. The knife is held firmly against a leather facing 14. The face of the wheel is coned to engage the blade on one side only, and the periphery is grooved at 19, Fig. 9 to cause air circulation for blowing away dust. Reference has been directed by the Comptroller to Specification 534,234.
Patent GB-599018-A (GB)
Title: Improvements in or relating to voltage control in rectifying arrangements
IPC: H02M7/06
Filed: 1945-05-18
Abstract: 599,018. Automatic control systems for rectifiers. STANDARD TELEPHONES & CABLES, Ltd., RICHARDS, E. A., and PEASE, W. E. May 18, 1945, No. 12603. [Classes 38 (ii) and 38 (iv)] The D.C. output voltage of a rectifying device is maintained substantially constant by a saturable choke, in series with the variable A.C. source and rectifier, an auxiliary winding of which carries part of th output current and is in parallel with a variable resistance controlled by the output voltage. In Fig. 1, the A.C. source supplies the rectifier 6 through transformer 5, to produce the D.C. voltage at terminals 3, 4. The reactance of the saturable reactor 8 is subject to the action of auxiliary winding 9 which carries a fraction of the output current determined by regulator 10. The latter comprises a resistor 11 which is varied by the output voltage through coil 12 and is set to control at a desired output voltage by resistor 13. A rise in the output voltage due to either a decrease of load or a rise and the source causes a decrease in the value of 11, a fall in the current through 9 and a consequent rise in the reactance of 8 to produce a correcting fall of voltage applied to the primary of 5. In Fig. 2 (not shown), the reactor control winding is energized from a separate rectifier in series with the transformer primary. The regulator may be either of the carbon pile or thermistor types and be provided with temperature compensation and anti-hunting means. Specifications 510,730 and 598,206 are referred to.
Patent GB-348853-A (GB)
Title: Improvements in apparatus for removing flexible cores such as air bags from tyre covers
IPC: B29D30/06
Filed: 1930-04-24
Abstract: 348,853. Tyre-building apparatus. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, WILLSHAW, H. and BLANCHARD, L. S., of Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. April 24, 1930, No. 12646. [Class 144 (i).] Relates to machines for removing from tyre covers having inextensible beads the flexible cores on which they are mounted during vulcanization, and consists in self-adjusting means for engaging both beads of the cover at a plurality of points and separating the beads in parallel relation around the whole internal periphery of the cover. As shown, the machine comprises a framing 1, 2 which supports a frame 4, 5, 5a which carries, by struts 6, four symmetrically arranged members 7 which converge to a boss 8 and serve as supports and guides for the operating mechanisms for the pairs of bead-engaging fingers 31, 32. Each member 7 guides a pair of slide blocks 18, 19 connected by spaced slide members 17, the block 18 carrying the inner bead-engaging finger 32. The outer finger 31 is carried by an arm 29 pivoted to an arm 27 fixed on a horizontal bar 23 which passes freely between the members 17 and is held at its rear end against the slide block 19 by a spring 25. The bar 23 is connected, by a pivoted link 21, to ears 17a at the upper end of the members 17, and by a pivot 24 to a bell crank 15 which is fulcrumed on a pin 16 fixed in the members 17. The shorter arm 15a of the bell crank is connected by a pivoted link 13 to the rod 12 of a piston 11 arranged in a cylinder 20. The links 13 of all four finger-operating mechanisms are connected to the rod 12. When pressure fluid is admitted to the cylinder 20 by an inlet 10, the slide 18, 17, 19 is first carried down the member 7, moving the finger 32 into contact with the inner tyre bead. The bell crank 15 then turns about its pivot 16, moving the bar 23 outwardly, so causing the finger 31 to separate the beads. The pressure fluid, which is released from a cylinder 33 under control of a treadle 34, can be admitted to the other end of the cylinder 20 by an inlet 10a. A power device, Fig. 4, for removing the core 47 from the cover after the beads have been separated, comprises a piston 40 in a fluid-pressure cylinder 39. The piston-rod 45 is attached to a cage 41 which is guided along spaced horizontal tracks 38 by rollers 43. A rod 46, pivoted to the axle 42 of the rollers for free vertical movement, carries a hook 48 with a detachable band 49 for engaging the core.
Patent GB-627647-A (GB)
Title: Improvements in and relating to the hydraulic system for stowing and unstowing the suction pipe of a suction dredger
IPC: E02F3/90
Filed: 1947-05-09
Abstract: 627,647. Dredgers. MACTAGGART, SCOTT, & CO., Ltd., and HADDOW, J. May 9, 1947, No. 12652. [Class 113 (ii)] In a suction dredger an hydraulic system of the kind comprising a pair of hydraulic cylinders a, a<SP>1</SP> for raising and lowering the pipe and a pair d, d<SP>1</SP> for traversing the pipe, means are provided whereby pressure fluid can be supplied to the traversing cylinders only when the pipe has been raised at least to such extent that when it is traversed it will clear the cradles. Said means comprise valves k, l, actuated from the lifting cylinders a and a<SP>1</SP> respectively to permit pressure fluid to flow to locking cylinders i, i<SP>1</SP> to withdraw locking pins g so that operating levers f, f<SP>1</SP> may be moved, these levers being connected to valves e, e<SP>1</SP> controlling the admission of fluid to the traversing cylinders. A mechanical interlock device is provided whereby the pressure fluid cannot be simultaneously admitted to the raising and lowering cylinders and the traversing cylinders.