baber/WOPTO huggingface dataset:
Patent GB-752833-A (GB)
Title: Improvements relating to centrifugal casting
IPC: B22D13/12
Filed: 1954-04-26
Abstract: 752,833. Electric control system. COMPAGNIE GENERALE DES CONDUITES D'EAU. April 26, 1954 [April 25, 1953], No. 11910/54. Class 40(1) [Also in Groups XIX, XXII and XL(b)] A centrifugal casting machine comprises two groups of regulating members, one group ensuring the carrying out by the machine, after it has been set in motion. of a cycle of successive mechanical operations and co-operating with the other group which react to the physical properties of the material to be cast so that, after the machine has been started the functioning of the first group of regulating members is influenced and corrected by the second group of members. In a pipe casting machine substantially as described in Specification 679,075 [Group XXII] which is referred to, the operating cycle is controlled by a first group of regulating members comprising a system of cams 51-56 and rollers. The cams 51, 52 and 56 controlling the ladle tipping speed of mould rotation and longitudinal movement of the mould respectively, are axially adjustable to vary the path of the associated roller and thereby vary the operating cycle. Said axial adjustment is effected by motors 105, 107, 109 whose operation is controlled by an electronic device 103 in response to electrical impulses fed thereto. The impulses are derived from a pyrometer 120 mounted in the tipping ladle 1<SP>1</SP>, thus varying with the temperature of the melt, and from photo-electric cells 101, 102 past which the material travels, thus varying in interval or duration with the fluidity of the melt. Other means may be employed for measuring the mean speed of flow of the material, its temperature or fluidity such as, movable fingers of which the displacement produced by the moving material closes electric contacts; the entraining by the material of paddles fixed to sliders of which the movement produces variation of electrical resistance or the closing of successive contacts; or measurement of the distance covered by a fusible object of which the time of fusion is known. The cams may control potentiometers as shown, which regulate directly the motors for the operations involved, or alternatively the potentiometers may be connected to electronic devices A, B. C comprising thyratrons which through electromagnetic relays control the motors.
Patent GB-845803-A (GB)
Title: Improvements in and relating to ladders
IPC: E06C7/08
Filed: 1958-04-15
Abstract: 845,803. Ladders. RAMSAY, R. S. April 15, 1958, No. 11961/58. Class 20(2) A ladder has tubular metal stiles 10 having prongs 20 extending radially inward from the edge of the outer rung receiving hole which engage the end of the rung when it is inserted during manufacture, in the stile, the prongs which are initially splayed outwardly then being forced by a tool into the end of the rung, and into the plane of the wall of the stile, the rung being finally swaged against the stile.
Patent GB-803084-A (GB)
Title: Improvements in or relating to bearings and like combinations of metal members in rubbing frictional contact
IPC: F16C33/12
Filed: 1955-04-26
Abstract: 803,084. Bearings &c. CLEVITE CORPORATION. April 26, 1955 [May 17, 1954], No. 12004/55. Class 12 (1). A method of reducing fretting corrosion between two metal members, adapted in use to be engaged in rubbing frictional contact with each other, comprises the coating of the contacting surface of one member with molybdenum and/or molybdenum oxide, and the contacting surface of the other member with copper or a copper-containing alloy preferably containing from 72 to 85 per cent copper, from 3 to 10 per cent tin, and from 8 to 23 per cent lead. As shown, a journal 10 mounted on a steel housing 18 of a coupling ring carries a sleeve 14 comprising a steel backing 22 coated on its outer surface with a layer 15 of molybdenum. A bushing 19 located within the housing 18 comprises a steel backing 20 having a thin coating 21 of copper or alloy of high copper content. The molybdenum may be applied to the bushing and the copper to the sleeve. Lubricant can be supplied to the journal by way of a nipple 17 and radial passages 12, 13. Specification 705,067 is referred to.
Patent GB-1291803-A (GB)
Title: Hydraulic power supply
IPC: F15B1/027
Filed: 1971-04-29
Abstract: 1291803 Power Steering FORD MOTOR CO Ltd 29 April 1971 [15 June 1970] 12038/71 Heading B7H [Also in Division F2] A pump 1 supplies hydraulic fluid to an opencentre steering valve 16 and a power brake system under the control of sensing valve 14 and flow control valve 15. As shown in Fig. 1, the accumulator 3, situated on line 6 leading to the brake system, is at full pressure (e.g. 800 p.s.i.) which acts, via line 36 on face 46 of spool 40 of valve 14 forcing it to the right, cutting off supply from pump 1 to valve 14, so that all the pump output flows through steering valve 16. If now the brakes are actuated and the accumulator pressure falls below a second valve (e.g. 700 p.s.i.), spring 44 forces spool 40 to the left first isolating exhaust line 38 then allowing fluid to flow via orifice 12 and groove 43 to line 54. Since fluid is flowing in line 56 from restricted orifice 13, but is static in line 54, pressure in the latter line is greater and spool 60 of valve 15 is moved to the left partly obstructing flow to the steering valve 16 and directing high pressure fluid via line 55 and valve 5 to charge accumulator 3 once more to full pressure. Spool 40 is thus forced to the right and the situation is again as in Fig. 1.
Patent GB-668030-A (GB)
Title: Frequency modulation multiplex systems
IPC: H03C3/06
Filed: 1950-05-15
Abstract: 668,030. Multiplex radio signalling; frequency modulation. ARMSTRONG, E. H. May 15, 1950 [June 1, 1949], No. 12058/50. Class 40 (v). A multiplex signalling system for frequency modulated waves comprises, in cascade, a first phase shifting modulator, supplied with carrier and a modulating signal, a frequency multiplier, and a second phase shifting modulator supplied with the multiplied frequency and an auxiliary modulating signal. The auxiliary signal is of higher frequency than the first modulating signal. In one embodiment, the first phase shifting modulator is of the type described in Specification 621,228 and the second modulator comprises a tuned input circuit 31 supplying voltages to the grids of valves 34, 35 in phase quadrature due to the phase-splitting circuit 32, 33. The valves have a common tuned output circuit 36 and the modulating signal is applied to the screen grid of valve 35 from conductor 38. Specifications 426,227, 481,527 and U.S.A. Specification 2,098,698 also are referred to.
Patent GB-1347511-A (GB)
Title: Apparatus for spatial and time modulation of a light beam
IPC: G02F1/03
Filed: 1971-04-29
Abstract: 1347511 Modulating light INTERNATIONAL BUSINESS MACHINES CORP 29 April 1971 [2 May 1970] 12122/71 Heading H4F The intensity of a plane polarized light beam 1 is modulated across the beam by passing it through one or more electro-optic KDP crystals 40a, 40b, to which an electric field is applied in such a manner that the relative phase of the E and O rays is varied across the beam, and then through an analyser 20. As shown, triangular electrode pairs 44, 45, and 54, 55 are energized individually or together to provide intensity graduation along a horizontal, vertical or diagonal line, the potential from source 52 being such as to produce a relative phase difference between the E and O rays varying from 0-180 degrees across each crystal. A further electro-optic cell S (3-5) may be activated to switch the plane of polarization of beam 1 through 90 degrees and so reverse the direction of the intensity gradation. Alternatively the voltage source 9 may be variable whereby the averaged beam intensity may be varied in addition to the spatial modulation. In a further embodiment, Fig. 9 (not shown), an additional analyser is placed between cell S and crystal 40a and the source 9 is variable to alter the average beam intensity. Additional pairs of electrodes complementary to pairs 44, 45 and 54, 55 are provided on crystals 40a, 40b for providing reversed intensity gradients. The source 52 is also shown as being variable for further modulation of the beam. In a modification of the system, Fig. 3 (not shown), operating on the longitudinal electro-optic effect, transparent electrodes are disposed adjacent each of the light transmitting surfaces of the electro-optic crystal but at an acute angle thereto, whereby the spatially varying electric field across the crystal gives a varying degree of birefringence. The system is said to be useful for spot shaping in phototracing machines, e.g. for integrated circuits, to compensate for uneven exposure normally obtained at the ends of lines and at angles with a uniform spot.
Patent GB-183591-A (GB)
Title: Improvements relating to valve gear
IPC: F04B7/00
Filed: 1921-04-27
Abstract: 183,591. Warner & Co. (Engineers), Ltd., R., Lovett, W. H., and Dobbs, A. E. April 27, 1921. Tappet gears; valve spindles and guides.-In valve-gear of the type having a fixed auxiliary piston and a movable auxiliary cylinder acting as a valve and wherein a lost-motion device arranged within the valve-chest is interposed between the auxiliary valve and its rod, such as is described in Specification 182,261, adjustment means are provided to maintain a maximum piston stroke at all speeds. The rod b is connected by links a to an adjustable pin e on a lever c. The pin e is adjusted by a screw e' and a nut e<2> provided with a flaring conical milled flange. The other end of the rod c may be varied in length, the fulcrum f adjusted in position. In a modification the rod b is made of two coaxial parts each carrying a tappethead, and which are relatively adjusted by screw-and-nut mechanism.
Patent GB-908250-A (GB)
Title: External band brake
IPC: F16D49/10
Filed: 1961-04-05
Abstract: 908,250. Band brakes. TEVES, H., TEVES, E. A., and TAUSAND, M., [trading as TEVES MASCHINEN-UND ARMATURENFABRIK KOMM.-GES., A.]. April 5, 1961 [June 4, 1960], No. 12165/61. Class 103 (1). A coupling device between the two pieces of an external band brake is carried in a casing fixed to the brake support and transmits secondary braking action from one piece to the other above a predetermined value. A brake band 3, 4 is contracted on to a drum 1 by cableactuated tongs engaging pins 12, 12<SP>1</SP>, and the band halves are connected by a coupling 5 carried in a casing 6 rigid with a stationary part of the vehicle. A sleeve 19 has limited axial movement against a spring 22 carried in the casing 6 and carries screw adjusters 26, 27 separated and held against rotation by a spring washer 30 engaging radial corrugations in the adjuster ends; the adjusters being screwed on to pins 28, 29 articulated to lugs 13, 13<SP>1</SP> on the brake band. On brake application no secondary force is transmitted from one part of the band to the other until that force is sufficient to overcome the pre-loading of the spring 22. In a second embodiment (Fig. 5), a coupling rod 30 joins the ends of the band pieces, and is surrounded by gripper discs 33, 33<SP>1</SP> fitted on each side of a flanged bush 34 carrying a centring spring 22<SP>1</SP>. In this instance no force is transmitted until that force is sufficient to overcome the action of the gripper discs, the spring 22<SP>1</SP> acting to centralize the sleeve and allow for wear.
Patent GB-1504162-A (GB)
Title: Derivation of characteristics of textile fibres
IPC: G01N/
Filed: 1975-03-24
Abstract: The measuring arrangement (IA, IB, 2, 3) determines, from samples of textile fibres, the distribution function of the fibre lengths and the visible staple line. The computer (4) having the memories (5, 6, 7) serves for calculating from the distribution function the quantities useful for the further processing of the fibres into textile fabrics, for example the visible staple line of the tuft or other distribution functions of the fibres, after the fibres have been exposed to further processing. <IMAGE>
Patent GB-382883-A (GB)
Title: Improvements in or relating to double line railway systems
IPC: B61L23/12
Filed: 1932-04-28
Abstract: 382,883. Railway signals. PUNTER, J. W., 44, Valkyrie Road, Westcliff-on-Sea, and TYER & CO., Ltd., Ashwin Street, Dalston, London. April 28, 1932, No. 12263. Addition to 362,542. [Class 105.] An authority to occupy a section of double line railway for repairs or other operations consists in a portable apparatus adapted to be placed on any one of a plurality of supports and to be released therefrom only if the block instruments are normal, the authority when released preventing the operation of the starting signal. The Figure shows the block instruments 3, 4 for the direction of travel from A to B and with the occupation authority 1 having been locked on a support by the key 2 chained to the support. In the usual block working a line clear signal is sent by moving the block instrument handle 5 to the left to give a line current of the requisite polarity whereby relay 8 closes its contact 9 to pick up a relay 10 which sticks up over a contact 13 of the starting signal lever ; the signal lever locking relay 14 is energized over contact 12 of relay 10 and the starting signal can be lowered. The line clear current is sent over a contact 20a which is only closed when a block locking shaft 20 is at normal. To release the occupation authority the starting signal lever must be at normal (signal at danger) to close contact 13 so that depression of button 15 at A and button 17 at B will energize relay 16 and so energize locking relay 19 to allow the block locking shaft 20 to be put at reverse and close contact 20c ; operation of the magneto 22 and depressing button 21 with button 24 of the authority depressed will now energize the lock magnet 25 of the authority and permit the key 2 to be turned, whereupon the authority 1 can be removed. When the authority 1 is again placed on a support the key 2 must be turned to lock the authority in position and to close contact 30 ; operation of the magneto 27 and if button 17 is depressed will now energize relay 16 by the transformer 28 since the block locking shaft 20 is at reverse, and the lock relay 19 will in turn be energized to permit the shaft 20 to be returned to normal. A telephone is provided in the occupation authority.
Patent GB-1069476-A (GB)
Title: Improvements in arc welding electrodes
Inventor: WILLEY JOHN MATTHEW
IPC: B23K35/04
Filed: 1965-03-23
Abstract: 1,069,476. Welding by fusion. MUREX WELDING PROCESSES Ltd. Feb. 10, 1966 [March 23, 1965], No. 12308/65. Heading B3R. A continuous arc-welding electrode comprises a sheath of stainless steel and a core amounting to 25-60% of the electrode and consisting substantially of a mixture of powdered iron and chromium and/or nickel representing a steel of composition different to that of the sheath. The electrode may be of circular or strip-like section. The electrode as a whole may constitute a stainless steel containing 18% Cr, 8% Ni; 19% Cr, 9% Ni; 13% Cr or 26% Cr, 18% Ni. By suitably selecting the core compositions, available sheath compositions may be utilized to a greater extent. The core may contain small quantities of arc stabilizers and/or slag formers. The electrode may be used in gas, e.g. CO 2 , shielded or submerged arc-welding.
Patent GB-603297-A (GB)
Title: Improvements in hinged joints for small relative motion
IPC: B60G7/00
Filed: 1945-05-16
Abstract: 603,297. Resilient mountings. LEYLAND MOTORS, Ltd., MARKLAND, S., METALASTIK, Ltd., and GOLDSMITH, M. May 16, 1945, No. 12330. [Class 108 (iii)] A resilient bushing comprising inner and outer metal members 1, 2 and a rubber bush 3, is secured to parts 6, 7 to be hinged to the outer member 2, through two positive connections, one permitting engagement in any one of a number of positions differing by a small angle and the other permitting initial engagement with play to the extent of one-half the angular difference between neighbouring alternative positions of the spline connection, the play being eliminated on tightening the connection. In the construction shown as applied to a laminated spring shackle connection, the outer member 2 of the rubber bushing is a press fit in the spring eye 4 and the inner member 1 forming the shackle pin has reduced endportions 9 carried in split bushes 10 in the eye of the shackle 6. Each portion 9 has a circumferential groove 12 engaged by a clamping bolt 11 and a splined portion 13 engaged by a splined anchor plate 15, the bevelled edges of which engage the bevelled edges 18 of a slot 16 formed on the outer face of the shackle eye. When the anchor plate 15 is only partially driven home by its corresponding securing nut 20, the bevelled edges permit limited movement relative to the shackle, equal to at least half the pitch of the splines. This enables the plate 15 to be engaged with the splines for any position of the chassis relative to the wheels. Final assembly is completed by tightening the nut 20 to fully engage the splines and tightening of the nut of the clamping bolt 11. As shown. there are 50 splines on each end 9. A finer degree of adjustment may be provided without increasing the pitch of the splines by forming the anchor plate in two parts which can be secured together in any number of relative positions. The sheathing forming the outer member 2 is split to provide compression of the rubber bush 3 and its ends 5 are turned inwards to confine the rubber axially of the shackle pin. Specifications 481;337, [Group XXV], and 541,124 are referred to.
Patent GB-870542-A (GB)
Title: Improvements in and relating to machines for threshing tobacco leaves and for separating the mass of leaf obtained by the threshing process
IPC: A24B5/10
Filed: 1960-04-07
Abstract: 870,542. Treating tobacco. KONINKLIJKE VEREIENIGDE TABAKSINDUSTRIEEN MIGNOT & DE BLOCK N.V. April 7, 1960 [April 14, 1959], No. 12407/60. Class 130. Two or more belts 9, 10 receiving tobacco from the grid 4 of a thresher 1 deliver it directly to two or more respective pneumatic separator channels 11, 12. A single belt may deliver from the grid 4 to the belts 9, 10. Tobacco stems falling from the channels 11, 12 may be treated in a second combined thresher and separator.
Patent GB-239806-A (GB)
Title: Improvements in and relating to shock absorbers for motor road vehicles, railway andwagon stock and the like
IPC: F16F7/06
Filed: 1925-05-13
Abstract: 239,806. Reynolds, J. May 13, 1925. Vibration-dampers. - A movable eccentric member B with a friction strip C secured thereto engages an eccentric surface H on the interior of a cap D which is screwed or otherwise secured in a fixed casing. The member B is fixed to an oscillating spindle E concentric with the recess in the casing A. The gaps at the engaging ends J. J<1> between the member B and the surface H vary according to the position of the member B and the adjustment of the cap D in the casing. A pointer and scale indicate the position of ad. justment of the cap D.
Patent GB-1501911-A (GB)
Title: Apparatus for mechanically assisting the installation and removal of an electrical device with respect to a switchboard
IPC: H02B11/127
Filed: 1975-03-25
Abstract: 1501911 Switchboard mountings GENERAL ELECTRIC CO 25 March 1975 [28 March 1974] 12429/75 Heading H1N [Also in Division H2] A device, such as a circuit breaker 10, is matable with contacts 30, 52 on a board and comprises male or female contacts 26 slidably matable with female or male contacts 30 and a rotatable screw-threaded contact 46 with limited axial movement relative to the device which when screwed into the contact 52 draws the contacts 26 into engagement with the contacts 30. Line buses 12a, 12b, 12c and load buses 14(a), 14b, 14c each have a respective contact 30 or 52 for mating with a contact 26 or 46 on the circuit breaker 10, contacts 26, 30 being pins and sockets, contacts 46 being each a bolt whose head bears against a terminal 22b or (24b), Fig. 2, not shown, through an aperture (40), Fig. 3, not shown, in which the bolt freely rotates. The head of the bolt in the line terminal 22b is engaged by an insulating coupling 36 rotatably secured to the breaker casing 16 by a plate 50 which can be engaged to rotate the bolt contact 46 in which the line bus 12b is live.
Patent GB-549749-A (GB)
Title: Improvements in electric lighting fittings
IPC: F21V19/00
Filed: 1941-09-29
Abstract: 549,749. Electric light fittings. BRITISH THOMSON-HOUSTON CO., Ltd., EDINBOROUGH, E. R., and PHILLIPS, C. W. M. Sept. 29, 1941, No. 12576. [Classes 75 (ii) and 75 (iv)] The trough-shaped reflector 6 for a tubular electric lamp 9 is supported by the upturned ends of arms extending transversely from threaded or spilt sleeves fitting in the conduits 1, 2 for the lamp supply conductors. The sleeves are also provided with upturned tongues 7 carrying spring clips 8 for engaging and supporting the lamp 9. The reflector may be provided on its internal or external surface with angle brackets or clips 10 to receive the upturned ends of the arms 5 which are preferably covered with felt or other cushioning material.
Patent GB-149774-A (GB)
Title: Improvements in or relating to drying apparatus
IPC: F26B17/00
Filed: 1919-05-19
Abstract: 149,774. Cloudesley, J. L. May 19, 1919. Osciliating trays.-A drying- apparatus comprises a series of superposed convex trays on a single oscillatable carrier and a series of intercalated concave trays provided with central orifices for discharge of material to the successive convex trays, with or without means for oscillating the concave trays. As shown, a shaft 11, Fig. 1, carries a series of circular trays 21 sloping downwards to the edges 22 which are flat and intercalated with reversely sloped annular trays 19 secured to a cylinder carried by a collar 13 resting on a spring 14. The collar supports a shoulder 12 formed on 'the shaft, the lower end of which rests in a bore 15 in a pedestal. The shaft at its upper end extends through a feed hopper, and is formed with a pin 24 resting on a forked end of a lever 26, Fig. 3, the other end of which is anchored by means of a spring connexion 31 and is tapped at intervals, giving a reciprocating motion to the lever and shaft, by a wheel comprising two disks with a series of rollers 30 trunnioned therein; a cam or toothed wheels may replace this device. Alternatively, the upper end of the shaft is given a circular movement. The top plate 19 is dished. and co-acts with the top tray 21 to initiate the movement of the material. In a modification, the concave trays are rigidly secured to the central shaft, and the convex trays resiliently supported against collars thereon.