baber/WOPTO huggingface dataset:
Patent GB-202606-A (GB)
Title: Improvements in or relating to liquid raising apparatus
IPC: F04B19/16
Filed: 1922-12-22
Abstract: 202,606. Soc. Anon. des Elevateurs de Liquides Chaine-Helice Bessonnet-Favre. Aug. 16, 1922, [Convention date]. Addition to 185,414. Chain pumps.-The liquidraising elements carried by the chain 2, 3 consist of flat-coiled metal members 1, held in position by tiepins 8 mounted in lugs 6 on the chain. Two or more sets of coils may be used. In the form shown in Fig. 9, the coils are replaced by flat strips or plates made up of straight or cross wires. The links 2, 3 of the carrier may be provided with flanges to increase the adherence of the chain to the driving pulley.
Patent GB-919692-A (GB)
Title: Improvements in or relating to steering control means for steerable wheels, for example, the ground wheels of aircraft
Inventor: CAMERON-JOHNSON ALAN
IPC: F15B11/02
Filed: 1958-11-05
Abstract: 919,692. Steering aircraft groundwheels. DOWTY ROTOL Ltd. Nov. 5, 1959 [Nov. 5, 1958], No. 35492/58; Class 79(5). A steerable wheel, e.g. the ground wheels or wheel of an aircraft, is steered from a control means through a means which changes the ratio of the movement of the control means to the movement of the steered wheel in dependence upon the speed of rotation of the steered wheel. As shown, the ground wheels 46 and 47 are steered through the links 45, 49 from a hydraulic motor 50 in response to the operation of a control valve 41. Feed back links 43 and 39 are provided to restore the valve 41 at the desired extent of movement. The valve 41 is operated from a rudder bar 11 through links 14, 16, crank 19, links 30, 32 and a flexible cable 36. The crank 19 is pivoted at 20 and has an arcuate slot in which slides the pivot 29 of the link 30 from a position above the pivot 20 when movement of the rudder bar produces no movement of the link 30 to a position at the other end of the slot when movement of the bar produces a maximum response in the movement of link 30. The pivot 29 is connected to a piston 28 which is spring urged towards the position at which link 30 is inoperative, the spring being compressed by pressure exerted in the cylinder space 95 to produce maximum response at no speed, the pressure being reduced as the wheel speed increases. The fluid for the hydraulic motor 50 is supplied from a reservoir 55 by a pump 54, return lines 59 and 109 being provided. The pressure in cylinder space 95 is provided from the supply line 57 through a reducing valve 62, and either one of two circuits 80 or 81, a valve 82 and line 94, the circuits 80 and 81 including hydraulic fuses 78 and 79. and flow limiting valves 76. and 77. The circuits 80 and 81 are also connected to pumps 65 and 66. driven from the ground wheels; The spool of valve 82 is normally biased to the right so that normally only circuit 81 is effective in supplying pressure liquid to the cylinder 95. As the ground wheel speed increases, the delivery of pump 66 increases and the pressure in. the cylinder 95 decreases and so the crank radius 19 decreases until the position. of no steering is reached. The delivery sides of pumps 65 and 66 are connected to opposite ends of the valve 82 so that, due to the larger diameter 87, the spool is normally biased to the right. If the pump 66 should fail, its output will cease and the spool will move to the left and the steering arrangement remains operative through the circuit 80. In the event of pressure failure, the spring 27 urges the crank 19 to the position of "no steer". The rudder bar 11 is also connected to the aerodynamic rudder. Specification 919,693 is referred to.
Patent GB-210945-A (GB)
Title: Improvements relating to grinding wheels
IPC: B24D5/14
Filed: 1922-12-30
Abstract: 210,945. Lumsden, T., and Blake, E. G. Dec. 30, 1922. Wheels. - A composite grinding-wheel is composed of more than one quality or kind of abrasive material, the different qualities being in the form of layers disposed edgewise of the grinding-face, whereby the wear of the edges and corners of the wheel is retarded. The Figure shows a peripheral grinding-wheel having outer layers a of abrasive material of finer grit and greater hardness of bonding than the intermediate layer b, the layers a being disposed edgewise of the grinding-face c. As applied to a cup-shaped wheel, the harder layer is disposed in the form of an outer peripheral ring; or according to the Provisional Specification, outer and inner peripheral rings of harder abrasive may be used. Segmental blocks for built-up wheels, may have the harder layer on the outer convex side, or the layer may be extended to the lateral sides, or may form a complete band enclosing coarser and softer abrasive material.
Patent GB-878632-A (GB)
Title: New dyestuffs of the naphthoylene-benzimidazole series and their methods of preparation
Inventor: DELARUE HENRI PIERRE
IPC: C09B57/12
Filed: 1957-11-15
Abstract: Polystyrene, polyesters and polyamides, such as the internal polyamide of omega-amino-undecanoic acid are coloured with a pigment of the formula:-  <FORM:0878632/IV (a)/1> where X is halogen, n is an integer of 1-6 and ring A may carry substituents which do not confer solubility in water.ALSO:The invention comprises dyestuffs of the formula:-  <FORM:0878632/IV(c)/1> where X is halogen, n is an integer of 1 to 6 and the ring A may carry one or more substituents which do not confer solubility in water.  The dyestuffs are made by condensing at a temperature from 80 DEG  to 200 DEG C. a benzene orthodiamine having two unsubstituted amino groups with a mono- or polyhalogenated naphthalene-1 : 8-dicarboxylic acid or anhydride thereof.  The dyestuffs colour synthetic plastic materials yellow to orange-red shades.
Patent GB-1057016-A (GB)
IPC: E04D13/155
Filed: 1964-09-01
Abstract: 1,057,016. Roof-edge trim strip. K. GOBEL. Sept. 1, 1964 [Sept. 6, 1963; Dec. 6, 1963], No. 35650/64. Heading E1W.  A protective covering for roof edges comprises a cover element 12 consisting of a ridged portion 12b to fit on the top part of a roof edge and a side portion 12a to fit on the side part of a roof edge, the cover element having an outwardly open trough-like depression 13, and being adapted for fastening on supporting means 9, 11 in such a manner as to conceal the supporting means. The cover element 12 may be formed in one piece, as shown, or in two parts comprised by separate upper and vertical portions, Figs. 1, 2, 4 and 6 (not shown). The outer edge portion of an upper layer of roofing material is clamped into the depression 13. An additional upper cover element 17 or a member 18 for securing the element 17 may also be clipped into the depression 13. The part 11 of the bracket is bolted to the part 9 thereof in a vertically adjustable manner. The Specification describes several different embodiments.
Patent GB-1144813-A (GB)
Title: Photographic exposure value compensator
IPC: G01J1/42
Filed: 1966-08-09
Abstract: 1,144,813. Photo-meters. INTERNATIONAL POLAROID CORP. Aug. 9, 1966 [Aug. 16, 1965], No.35651/66. Heading G1P. [Also in Division G2] An optical photographic exposure value compensator comprises means for viewing a scene, means responsive to luminance of the scene for imposing on the field of view a field of illumination having an intensity proportional to average luminance of the scene, means for adjusting the ratio between the luminance of the scene and that produced by the responsive means to permit analysis of the luminance differences between selected portions of the scene and said field of illumination, and means responsive to the adjusting means for deriving a correction factor for an exposure value applicable to said scene. As shown in Fig. 1, a view-finder 12 of a camera 11 has a lens 13, a semi-transparent mirror 23 and a eye-piece 14 for viewing the scene, a background field of illumination is produced by light passing through polarizers 28 and 27, louvres 24, and a diffusing transparent element 25 on to a mirror 26 and into the eye-piece 26, to obscure all but the highlights of the scene viewed; the luminance of the background may be adjusted by rotating polarizer 28 which is mounted in a ring 30; a corresponding adjustment may be made to the exposure system of the camera either manually by reading off the required adjustment from a scale (31) on ring 30, or by coupling ring 30 to the camera diaphragm mechanism (33) by a lever (34) Fig.2 (not shown). In (Fig. 3), an image of the scene is focused on a screen (42) having a pattern of transparent areas and opaque-reflective areas thereon, the field of illumination being reflected on to the back of the screen, so that the highlights and less illuminated areas of the screen may be compared with the field of illumination, the intensity of which may be adjusted by a pair of polarizers (53) (55); in a similar arrangement Fig. 4 (not shown), the field of illumination is reflected on to the front of a screen (63) having transparent and diffusive areas, and the luminance of the scene viewed is adjusted by a diaphragm (65). In other embodiments, the light for viewing the scene and the light for providing the field of illumination enter through the same aperture, and ratio thereof is adjusted by either two relatively movable screens (74) (75) Fig. 5 (not shown), a tiltable screen (83) Fig. 6 (not shown) or a fixed polarizer (88) or (95) and a rotatable screen having polarizing areas (90) or (91) Figs. 7 and 8 (not shown). The adjusting means may also include optical wedges or louvres, and may be coupled to the shutter-timing mechanism.
Patent GB-1023424-A (GB)
Title: Self-energising disc brakes
IPC: F16D55/224
Filed: 1962-09-19
Abstract: 1,023,424. Disc brakes. F. J. C. HOPE. Sept. 18, 1963 [Sept. 19, 1962], No. 35748/62. Headings F2E and F2F. A disc brake includes a torque arm 4 adapted to be pivotally mounted on a wheel axle 3, one or more calipers 7 being mounted on the torque arm, a lever system 8 effective to move friction pads mounted in each caliper into the operative position, and cam means 6 operated through the lever system on pivotal movement of the torque arm 4 to increase the gripping pressure exerted by the friction pads on the disc. Fig. 1 shows an embodiment wherein hydraulic pressure applied by the driver through an inlet 14 causes an hydraulic cylinder 12 to move the lever 8 by reaction to rotate a face cam 9 to operate the brake. As the brake pads frictionally engage the frictional surfaces 2 of the brake disc 1 the frictional drag of the rotating disc on the caliper 7 results in the frictional torque being transmitted to the torque arm 4 and the cam means 6. Continued pivotal movement of the torque arm 4 on the axle 3 causes concentric and corresponding movement of the cam 6 such that the roller 17 is urged to ride up the profile of the cam and a piston 15 is forced upwards into the cylinder 12 to provide an increase of pressure. Non-return valves may be provided in the connection 14 to ensure that the increase of pressure is applied only to the first mentioned piston operating in the cylinder 12 so as to intensify the braking effect. Alternative embodiments are disclosed in the Specification and in Fig. 5 primary actuation of the calipers 7 through levers 8 is effected by rotation of a cam 18 to thrust against a pressure block 20 and against a portion 22 of a member 21 mounted on the axle for rotation relatively to the torque arm 4. A member 21 carries the cams 5 against which the inner ends of the levers 8 bear. Rotation of the member 21 under the influence of the cam 18 causes the levers 8 to ride up the profiles 6 of the cams 5 and thus actuate face cams 9 to urge the friction pads against the frictional surfaces 2 of the disc 1. The frictional drag so caused forces the torque arm to rotate in the direction of rotation of the disc so that the levers 8 ride further up the profiles 6 and cause an increased braking action. A stop 26 on the member 21 and resilient blocks 27 mounted on members 28 on the torque arm 4 limit the rotational movement of the torque arm.
Patent GB-1301776-A (GB)
IPC: C07D211/46
Filed: 1971-07-30
Abstract: 1301776 Glycyrrhetinic acid derivatives KNOLL AG CHEMISCHE FABRIKEN 30 July 1971 [2 Sept 1970] 35958/71 Heading C2C The invention comprises the 30-(1-methyl-4- piperidyl) ester of glycyrrhetinic acid 3-acetate, and its acid addition salts; and the preparation thereof by reacting glycyrrhetinic acid 3-acetate or a functional derivative thereof with 1-methyl- 4-piperidinol, and, when required, salifying the resulting compound. Specified salts are the hydrochloride, sulphate, sulphamate, citrate, phosphate, lactate, tartrate and fumarate. The inventive compounds are said to be anti-inflammatory, and may be made up with carriers into pharmaceutical compositions for oral administration.
Patent GB-1525592-A (GB)
Title: Line repeater amplifiers
IPC: H04B3/36
Filed: 1975-09-03
Abstract: 1525592 Repeaters SIEMENS AG 3 Sept 1975 [20 Sept 1974] 36197/75 Heading H4R A repeater amplifier includes a transistor T1 having a Zener diode D in the base collector circuit thereof. Referring to Fig. 2, the circuit shown acts as a unity gain amplifer at low frequencies for A.C. signals incoming on wire 1 and acts as a Zener diode in respect of the D.C. current supply incoming on the same wire. At higher frequencies the impedance of capacitors C1, C2 reduces to reduce the negative feedback of the amplifier and hence increase its gain. Fig. 3 shows a simplified version of the circuit which can be used if the requirements for distortion correction and matching are less stringent.
Patent GB-830011-A (GB)
Title: Improvements in and relating to the polymerisation of vinyl compounds
Inventor: DIX THOMAS JAMES
IPC: C08F2/50
Filed: 1956-11-30
Abstract: Solutions of polymers are prepared by polymerizing one or more vinyl compounds, such as acrylonitrile, acrylic acid and methyl acrylate, in an aqueous solution of a thiocyanate salt under ultra-violet light radiation in the presence of complexing agent which is a water-soluble compound which, when dissolved in water, forms with any multivalent ions which may be present a compound in which metal is no longer ionized, e.g. acetyl acetone, ethylene diamine, tetra-acetic acid and polyethyleneimine.  Specification 672,775 is referred to.
Patent GB-909324-A (GB)
Title: Self-propelled projectile
IPC: F42B15/00
Filed: 1960-10-26
Abstract: 909,324. Self-propelled missiles. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. Oct. 26, 1960 [Nov. 2, 1959], No. 36813/60. Classes 9 (1) and 9 (2). A self-propelled missile having a combustion chamber 2 in which is housed a propellant charge 3 has a safety device comprising a rupturable wall 7 and a safety chamber 6. The annular zone 8 of the wall 7 is of thinner material than the peripheral wall of the chamber so that rupturing around the zone 8 can occur and thus prevent the build-up of a pressure capable of rupturing the chamber. The propellent gases entering the chamber 6 issue from ports 9, the number and diameter of which being such that the pressure is reduced to a value approximating to that of the normal working pressure. In another embodiment, the dummy warhead of a practice missile is hollowed out to form a safety chamber into which the wall 7 is projected on operation of the safety device and into which the propellent gases may escape. Ports may be provided connecting the chamber to the atmosphere. In a further embodiment, the wall 7 is not integral with the chamber 2, but consists of a suitably thick washer held in position against an anvil at the forward end of the safety chamber 6 by a ring screwed into the chamber. In the event of accidental highpressure the washer is peripherally severed and forced back against the anvil, thereby allowing the propellent gases to escape through ports 9. The safety device may be applied to rifle grenades, hollow charge projectiles &c.
Patent GB-1502650-A (GB)
Title: Power wrenches
IPC: B25B21/00
Filed: 1975-09-08
Abstract: 1502650 Power wrenches NSW CORP 8 Sept 1975 [17 Sept 1974] 36929/75 Heading B3N A power tool for tightening and loosening one of a plurality of adjacently spaced threaded connectors (nuts 12) comprises a driver 16, including socket 17, for transmitting torque to the connector, a lever whose arm 22 extends laterally from the driver, and a reaction assembly 31, against which an actuator 40 reacts when acting on the end of the arm 22, the assembly comprising an abutment member 34 for fitting on to another of the connectors and a reaction beam 33 coupled towards one end to the abutment member and at the other end to a collar 32 rotatable on the driver 16. As shown, the fluid-pressure-operated actuator is double acting and pivoted on beam 33. The piston rod has a pin 48 at the end which cooperates with a notched plate arrangement or head 26 to provide a ratchet effect to rotate the arm 22 and loosen the nut connector on reciprocation of the piston. By turning the head 26 upside-down, Fig. 6, not shown, the tool may be used for tightening the nut. In one embodiment, Fig. 3, the abutment member 34 is pivotally mounted via arm 60 on beam 33, the pivot pin 63 being positionable in any of holes 64, the arrangement allowing for different positionings of the connectors. In the other embodiment, Fig. 7, the abutment member 34 is integrally formed with a slide member 66 slidable on beam 33. Since the actuator 40 acts perpendicularly or substantially perpendicularly to arm 22, the torque applied to the connector 12 is proportional to the fluid pressure in the actuator and gauges (46, 46<SP>1</SP>, in the feed lines to the actuator (Fig. 4, not shown) may be calibrated in torque values.
Patent GB-447988-A (GB)
Title: Improvements relating to the manufacture of steel and other metal tubes
IPC: B21B17/04
Filed: 1934-12-24
Abstract: 447,988. Rolling tubes. TUBE PRODUCTS, Ltd., and NORTON, A., Popes Lane, Oldbury, Birmingham. Dec. 24, 1934, No. 36947. [Class 83 (iv)] A tube is reduced by pushing it while on a mandrel, through spaced pairs of small undriven rolls b backed by large support rollers C and each pair being set at a different angle to the tube diameter. The rolls b are provided with end thrust bearings f, and the shape of the pass is circular at the trough and tangential at the sides.
Patent GB-444353-A (GB)
Title: Improvements relating to the rings of yarn doubling and like machines
IPC: D01H7/62
Filed: 1934-12-24
Abstract: 444,353. Lubricating doubling &c. rings. DUGDALE, J. R., 291, Willowfield Road, Halifax, Yorkshire. Dec. 24, 1934, Nos. 36949/34 and 3825/35. [Class 120 (ii)] The rings of yarn-doubling and like machines are provided with a vertical lubricant-supply hole f, breaking through the top surface at g and, if desired, communicating with the inner surface by holes h, i, and with a radial hole a registering with a hole in the ring rail adapted to be charged by a grease gun. The hole f may break into a shallow groove in the top of the ring. The hole in the ring rail is diametrically opposite to the clamping screw for the ring, to ensure an effective joint.
Patent GB-1114411-A (GB)
Title: Alternating current motor
Inventor: FINLAY ARCHIBALD HENRY
IPC: H02K31/02
Filed: 1963-09-24
Abstract: 1,114,411. Homopolar machines. A. H. FINLAY. 23 Dec., 1964 [24 Sept., 1963], No. 37444/63. Heading H2A. An homopolar motor has a stator, comprising blocks of U-shaped laminations 16 and an A.C. excited primary winding 15, which co-operates with a laminated rotor 12 on which are wound a number of circumferential, effectively shortcircuited coils 20. The ends of coils 20 are connected to contact plates 21, 23 in a manner such that one end connection 22 passes axially adjacent air gaps 13 between stator and rotor. The plates 21, 23 are connected together by way of brushes 26, 27 and pole face conductor 28 which reduces armature reaction effects. When coil 15 is supplied with single phase A.C., interaction between the primary field and the field produced by axial conductors 22, due to current induced in coils 20 by transformer action, causes the armature to rotate. The construction may be modified by duplicating the coils and conductors at the other air gap 14 or by extending the conductors 22 to pass adjacent to both air gaps. It is stated that speed can be controlled by varying the voltage applied to coil 15 and the positions of the stator and rotor coils can be interchanged.
Patent GB-1473297-A (GB)
Title: Buttons
IPC: A44B1/22
Filed: 1973-08-08
Abstract: 1473297 Buttons NEWEY GOODMAN Ltd 6 May 1974 [8 Aug 1973] 37510/73 Heading A3H  A two-part button with fabric covering 16 whose edges are trapped when the two parts are snap assembled, comprises a support 1 and retainer 2. The support 1 has an axially extending integral stem 4 which passes through a hole 13 in the retainer 2 to assemble the button. Teeth 12 in the support 1 and teeth 14 on the retainer 2 help hold the fabric covering 16 in place. The retainer 2 clips into a recess 10 in the stem 4 which also has a thread hole 9.
Patent GB-980040-A (GB)
Title: An improved decimal counting device and stepping unit therefor
Inventor: WELLS ROY ERNEST
IPC: G06M1/04
Filed: 1963-09-24
Abstract: 980, 040. Counters; totalisators. ELECTRA TOTALISATORS PTY. Ltd. Sept. 24, 1963, No. 37524/63. Headings G4A and G4D. A totalisator counter for aggregating bets valued at 2, 5,10 and 50 units comprises for each denomination an electromagnetically-advanced numeral wheel 28 rigid with a set 42 of contact discs whereby the current total may be transmitted electrically by means of contacts 45a-45d in predetermined code. The lowest denomination wheel is advanced two steps at each operation of its electromagnet. Transfer is effected when a cam 35 operates contacts 33. A 5 or 50 unit bet displaces a two-position flag 48 or 49, the second operation effecting transfer to the next higher denomination by means not shown.
Patent GB-377154-A (GB)
Abstract: 377,154. Momentary-contact switches. SOC. FRANCAISE DES TUBES PNEUMATIQUES, 44, Rue Marius Aufan, Levallois-Perret, Seine, France. Jan. 12, 1931, No. 1000. Convention date, Jan. 18, 1930. Void [Published under Sect. 91 of the Acts]. [Class 38 (v).] Momentary contact between rings C, C<1> made by passage of an object A in a pneumatic tube B, energizes a circuit P of a relay provided with a moving voltmeter ammeter or synchroscope needle G, which is, after operation, retained by a latch K and released after a certain time has elapsed.
Patent GB-1204289-A (GB)
Title: Method of providing an anti-implosion clamping band around the envelope of a television picture tube
IPC: G02B7/00
Filed: 1969-07-29
Abstract: 1,204,289. Cathode ray display tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 29 July, 1969 [1 Aug., 1968], No. 38051/69. Heading H1D. A method of providing an anti-implosion clamping band around a TV picture tube envelope which envelope has a mould match line 3, and the rim of the cup-shaped window portion secured to the cone portion by solder glass 7, comprises sliding the band on to the envelope from the window side, large diameter portion 10 first, until the band is entirely on the cone side of the line 3, the smaller diameter portion 9 then exerting a pressure on the envelope, the band being slid on such that its experiences no permanent deformation on passing the mould match line. The latter may be achieved by heating the band, or the narrow portion provided with slots (11) (Fig. 4, not shown) preferably either side of each comer of the normally rectangular band, one or more auxiliary clamping bands 12, 13 being fitted around the narrow portion when in place. Filler 14 may be epoxy resin or polyvinyl chloride, preferably so that ridge 7 remains free. An adhesive such as polyvinylacetate may be provided between band portion 9 and the envelope portion (5). The band may be manufactured by bending and welding a correspondingly profiled strip. Reference is made to colour TV picture tubes.