baber/WOPTO huggingface dataset:
Patent GB-1242781-A (GB)
Title: Brake block
IPC: F16D65/02
Filed: 1969-05-21
Abstract: 1,242,781. Brake blocks. METPRO DEVELOPMENT CO. (PTY.) Ltd. 21 May, 1969 [28 May, 1968; 24 July, 1968], No. 25935/69. Heading F2E. A brake block comprises at least two lobes having a plurality of projecting formations thereon forming a braking surface. As shown in Fig. 1, a brake block 10 includes a single piece of brake material 11 formed with two lobes 18, 20 defining between them a recess 22. Each lobe has a curved braking surface 24 or 26 formed by projecting undulating angular formations in the form of parallel ridges 28 (see also Fig. 4). Each ridge has equal sides 30, 32, defining between them an angle of approximately 60 degrees. The brake material 11 may be moulded on to a reinforcing backplate 12, holes 39 being provided to assist attachment. Securing- and locating-lugs 14, 16 may also be provided. The brake block 40 of Fig. 4 has two separate lobes 42, 44. The braking surface with which the brake blocks are used may be cylindrical, or frustoconical. The frusto-conical surface may be that of a rail wheel, having, for example, a taper of 1 in 20. Alternatively the braking surface may be the flat side of a disc. Preferably a complete brake assembly incorporating brake blocks of the invention is so mounted that the projecting formations lie transverse to the direction of movement of the surface being braked. Thereby the bedding down of the brake blocks is facilitated and made more rapid because the formations wear away more easily than a uniform surface. Furthermore, where two separate lobes are provided, as in Fig. 4, slight deformation of the block is possible, facilitating circumferential bedding down; cooling also results. The material 11 may be heat-resistant, and in all cases the valleys 38 between the ridges 28 assist the dissipation of heat. One side of the brake block may be painted yellow and the other side red, to indicate correct and incorrect fitting respectively, especially where a slight taper on the block has to be matched with a slight taper on the braking surface. The colouring also assists in determing the degree of wear of the block on mere visual examination.
Patent GB-1395514-A (GB)
Title: Communications systems
IPC: H04B7/212
Filed: 1972-08-02
Abstract: 1395514 Satellite communication systems POST OFFICE 2 Aug 1972 [11 Aug 1971] 25954/73 Divided out of 1395511 Heading H4L The description is substantially the same as that of the parent Specification 1,395,511, but the claims relate to the rearrangement of the bit stream in the burst signal (in which each burst in a T.D.M.A. frame carries a plurality of input P.C.M. frames), so that adjacent groups of bits represent the analogue signal appearing on the same input channel.
Patent GB-967939-A (GB)
Title: Improvements relating to coin-freed mechanism
Inventor: BOURACIER CYRIL EUGENE
IPC: G07F5/04
Filed: 1962-07-06
Abstract: 967, 939. Coin freed mechanisms. ICE - MATIC Ltd. July 3, 1963 [July 6, 1962], No. 25967/62. Heading G4V. A coin freed mechanism which accummulates coins to a given number before operating a release member comprises shoots 8 and 9 set side-byside so that coins admitted through a delivery shoot 7 accumulate in shoot 8 on a wire hook 17 until the shoot is full and the next arriving coin is deflected by the top coin of the full shoot into shoot 9 where it deflects a feeler 23 to retract the hook 17 and discharge the accumulation, the side walls 4 and 6 of the shoots 8 and 9 being adjustable to vary the width of the shoots for coins of one value or another. The hook 17 and the feeler 23 are mounted with a counter-balance 19 on the same spindle transverse to the shoots between brackets 13. The position of hook 17 is adjustable vertically to vary the number of coins accumulated.
Patent GB-870619-A (GB)
Title: Improvements in and relating to relay operating circuits employing transistors
IPC: H03K3/30
Filed: 1958-08-13
Abstract: 870,619. Transistor relay circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 13, 1958 [Aug. 16, 1957], No. 26009/58. Class 40(6). A relay circuit comprises a transistor having one winding 18 of a relay in its collector-emitter circuit and another winding 22 connected regeneratively in the base-emitter circuit, whereby the application of a pulse through a capacitor 26 to the base circuit will cause the relay to operate. In the circuit shown the transistor is biased to be normally non-conductive by a circuit 12, 14, 16. The relay may be maintained operated by a third winding connected in series with latching contacts or by a mechanical latch releasable by passing current through a winding of the relay.
Patent GB-231101-A (GB)
Title: Improvement in brakes for vehicles
IPC: F16D51/56
Filed: 1924-02-01
Abstract: 231,101. Royce, F. H. Feb. 1, 1924. Blocks acting on drums.-In internal expanding brakes comprising two shoes pivoted at one end and engaged by a cam at the other, each shoe comprises two or more hinged sections, and one shoe c<2>, c<21> is made longer than the other c<1>, c<11>. This arrangement is advantageous for a brake the application of which is assisted or effected bv a servo-mechanism during forward travel only, the longer shoe being so disposed as to be the more effective during backward movement of the vehicle. The expanding-cam f may, as shown, be mounted on a fixed spindle f<1> and be connected to the shoes by links c<15>, c<25> or the cam spindle may be mounted on plates secured to the section c<11>, the link c<25> only being used, so that the cam floats with the shoe on which it is mounted. In the latter case the pivot for theshoes is located as near the ground as possible to minimise the strain on the wheel bearings.
Patent GB-529568-A (GB)
Title: Improvements in machines for dressing cylindrical surfaces by a honing or lapping process
IPC: B24B33/02
Filed: 1939-09-19
Abstract: 529,568. Honing- and lapping-machines. BURGESS, A. F. (Barnes Drill Co.). Sept. 19, 1939, No. 26143. [Class 60] A honing or lapping machine in which a rotating elongated work piece or tool shaft 18, supported horizontally by its ends above a guideway, is also supported at one or more intermediate points by supports 30 which are retracted to allow a slide 15 to pass along said guideway. In honing the inner surface of a workpiece W the slide may carry the tool shaft 18 which is rotated by a motor M and be traversed by cables 21, 22, and a hydraulic motor M, Fig. 6, rotated alternately in opposite directions under the control of a valve V, pilot V<SP>1</SP>, and stops S, S<SP>1</SP> engaged by a projection 26 on the slide. Each of the supports 30 is operated by a piston 37 controlled by a valve V<SP>2</SP> which is moved by a cam 48 of the slide 15 when this passes it. When the external surface of a shaft W<SP>1</SP>, Fig. 7, is to be honed this is rotated between heads 52, 55 and a slide 57, having a non- rotating hone T<SP>1</SP>, is reciprocated like the slide 18 but it carries two cams 63, 64 so as to lower each support 30 as it approaches but to raise it again when the slide has passed.
Patent GB-1489844-A (GB)
Title: Structure for supporting flora
IPC: A47G7/03
Filed: 1975-06-19
Abstract: 1489844 Flower holders DART INDUSTRIES Inc 19 June 1975 [29 July 1974] 26190/75 Heading A4U A structure for holding flora comprises a bowl and a vase, the bowl being positionable upon or under the vase and having an opening in its bottom wall bounded by flanges 15, 17 for respective alternative engagement with an extension 46 of the side wall of the vase or an internal ridge 54 of the side wall, see also Fig. 6 (not shown). When the flange 17 engages the ridge 54 an annular projection 40 on the bowl engages the top edge 50 of the vase, and when the flange 15 engages the side wall extension 46 the flange 17 is engaged in a resilient U-shaped sealing part 20 of a closure member 18 having upstanding spikes 30. The opening in the bowl has therein a mesh grid 24, see also Figs. 8 and 9 (not shown), having openings 26. The structure is made of plastics material. Ribs 48 on the extension 46 engage the flange 15 to facilitate their interengagement.
Patent GB-240315-A (GB)
Title: Process of making disperse systems
IPC: C09K23/00
Filed: 1924-11-03
Abstract: Mono- or unsymmetrical diacylated diamines, such as those described in Specifications 203,608 and 219,304, [both in Class 2 (iii), Dyes &c.], are used in the form of their aqueous salt solutions as dispersing agents for substances insoluble in water. According to examples, (1) a saturated aqueous solution of arsenious oxide is treated with hydrogen sulphide, after addition of a solution of oleyldiethylethylene diamidehydrochloride, to produce a dispersion of arsenic trisulphide; (2) silver nitrate solution is treated with a solution of oleyldiethylethylenediamidehydrochloride to produce a dispersion of silver chloride; and (3) silver nitrate solution, after addition of a solution of oleyldiethylethylenediamideacetate, is treated with hypophosphorous acid and sodium acetate, the product after dialysis being a silver hydrosol.
Patent GB-927736-A (GB)
Title: Improvements in or relating to axial thrust bearings for rotary shafts
IPC: F16C33/10
Filed: 1961-07-20
Abstract: 927,736. Fluid bearings. PHILIPS' GLOEILAMPENFABRIKEN N. V. July 20, 1961 [July 23, 1960], No. 26332/61. Class 12 (1). An axial thrust bearing which is supported on a self-generated fluid pressure, has a fixed member 4 having a cavity 3 which receives a thrust portion 2 of a rotary shaft 1. The fluid pressure is produced by shallow " spiral "- shaped grooves 5 of rectangular section which are distributed round the axis of a bearing surface of the portion 2 of the shaft 1, alternatively the grooves may be in the cavity 3 of the member 4. In use, the rotation of the shaft 1 causes the fluid medium to be forced from the exterior of the grooves to the interior where it passes into a chamber 6 which, having an opening at one side thereof, allows the fluid to escape. The chamber 6 may be formed in either the member 4 or in the portion 2 of the shaft 1, or partly in each. The width of the land between grooves is equal to the width of a groove. In an embodiment the shaft is supported radially by a ball-bearing and in another embodiment the shaft passes through the thrust bearing, seals being positioned at each side of the chamber 6.
Patent GB-1502207-A (GB)
Title: Concrete segment
IPC: E21D11/08
Filed: 1976-06-25
Abstract: 1502207 Tunnel linings J TSUZUKI 25 June 1976 [18 July 1975 5 April 1976] 26467/76 Heading E1F A concrete segment 1 for a tunnel lining consists of an arcuate concrete body member 2 having cavities in the joint surfaces of the body 2, each of the cavities being open from the inner surface of the body 2; metal joint pieces 3, 4 having bolt holes positioned in the cavities with the bolt holes exposed at the joint surfaces: and at least one steel frame member 5 embedded in the concrete body 2, the members 5 extending between the circumferential end surfaces of the segment 1 and being secured to the metal joint pieces 3. The segment 1 also includes longitudinal and transverse reinforcement 6, 32 respectively. The segment 1 is formed with a tongue 7 along one end and a groove 8 at the other end, and with a tongue along one side and a groove 10 along the other side. The joint surfaces are also provided with a rebate adjacent the inner surface, the rebates forming grooves for sealing materials when the segments are assembled. In a first embodiment (Fig. 5) each end joint piece 3 includes an end plate 11 with bolt hole 15, side plates 13 and top plate 14. Each steel frame member 5 consists of pairs of bars 5 connected by vertical spacers (not shown), the frame members 5 being secured to the side plates 13 via connecting members 16. Anchor bars 33 are also secured to the side plates 13. The side joint pieces 4 (Fig. 8) are similar to joint pieces 3 and are held in place by anchor bars 19 embedded in the concrete. Fig. 15 shows how adjacent segments 1A, 1B are secured together by nuts 35 and bolts 34 passed through the bolt holes 15A, 15B, of adjacent joint pieces 3A, 3B. In a second embodiment (Fig. 20) each steel frame member 43 consists of a pair of steel strips 47, 48 joined by spacers 49 and connected to the end joint piece 42 by connecting member 44. In a third embodiment (Fig. 41) each end joint piece 72 is connected to a steel frame member 74 (consisting of steel strips 79 joined by spacers 80) by reinforcing rods 81A and 82.
Patent GB-1520183-A (GB)
Title: Vehicle external rear view mirror assembly
IPC: B60R1/06
Filed: 1976-06-25
Abstract: 1520183 Rear view mirrors B S G INTERNATIONAL Ltd 25 June 1976 [27 June 1975] 26534/76 Heading B7J A vehicle external rear-view mirror assembly remotely controllable from the interior of a vehicle comprises a housing 1; a mirror proper 3 carried by a holder plate 2 articulated by a ball joint 4, 5, 6 mounted in the housing 1 for movement about axes h<SP>1</SP>, h and v<SP>1</SP>, v, at right angles to each other; a reversible electric motor 10 driving through a reduction gearing (not shown) an epicyclic gear train 13, wherein the latter is connectible selectively, by operation of a solenoid 24 having a permanent magnet core 22, to a clutch element 21 or to a clutch element 19 which are connected to the holder plate 2, at 28 and 8, respectively, to cause pivotal movement of the plate 2 and mirror 3 about the axis v<SP>1</SP>, v or the axis h<SP>1</SP>, h. The motor 10 and solenoid 24 are connected to suitable control means by wires 31. The solenoid 24, according to its direction of operation, causes a selector 16 connected to the permanent magnet core 22 and to planet gears 14 of the epicyclic gear train 13, to connect a clutch element 20 to the clutch element 21 or to connect a clutch element 18 to the clutch element 19.
Patent GB-158095-A (GB)
Title: Improvements in and relating to forced draught apparatus for furnaces
IPC: F23L1/02
Filed: 1919-10-29
Abstract: 158,095. Coleatti, C. Oct. 29, 1919. Blast apparatus.-Apparatus for forcing air through a furnace grate comprises a blast box 13 fitted to the front of the ash-pit, as shown in Fig. 6, and provided at the bottom with one or more apertures through which blast is supplied by one or more Venturi tubes 11 by the aid of steam nozzles 7 which deliver annular jets of steam formed by cores located centrally within the nozzles. The blast-box is provided with an outer door 19 and an inner door 21 for closing the apertures in the bottom of the box when required. A modified form of the apparatus is shown in Fig. 9, in which the steamnozzles 7 are located within the blast-box 17 and at the ends of, Venturi tubes 11 which extend into the ash-pit. Specification 16414/08 is referred to
Patent GB-862973-A (GB)
Title: Means for creating a suctional force
Inventor: BLABER MICHAEL PERCY WILLIAM
IPC: B29D7/01
Filed: 1956-11-30
Abstract: 862,973. Feeding sheets. KODAK Ltd. Nov. 28, 1957 [Nov. 30, 1956], No. 36642/56. Class 100(1) [Also in Group XXX] A jet of compressed air introduced tangentially through an orifice 3, Fig. 7, near the closed end of a cylinder 1, produces a vortex in the cylinder and a region of low pressure at the centre of the open end, enabling objects 13 such as photographic plates or films to be lifted. The object 13 does not touch the cylinder since air is escaping between the lip 6 and the object. The cylinder may be wider near its closed end, as at 15, Fig. 5, and may have a trumpet mouth as at 9, Fig. 3. The embodiment of Fig. 3 is cut from a block of "Perspex" (Registered Trade Mark) or similar material. Preferred dimensions are given for the cylinders. A number of the devices 28, Figs. 8, 9, may be mounted in a plate 49 and provided with an air inlet 26 and distributing passages 27, 46. Channels 29 in the lower surface 50 allow the air to escape. Alternatively the cylinder lips 36, Fig. 12, may protrude below the lower surface. In another embodiment, Fig. 14, a number of devices 41 are arranged in the lower surface of a wind chest 38. More than one jet may discharge into each nozzle.
Patent GB-1158046-A (GB)
Title: Change-Speed Transmission Control Mechanism
IPC: G05G1/08
Filed: 1967-06-09
Abstract: 1,158,046. Change-speed control. CATER-- PILLAR TRACTOR CO. 9 June, 1967 [1 July, 1966], No. 26747/67. Heading F2D. The forward/reverse and ranging valves (24), (26), Fig. 2 (not shown), of an hydraulically operated motor vehicle transmission are manually positioned by a single steering column mounted shift lever 11, rotation of the lever about its longitudinal axis sliding a rod 43 and a rod 46, screw-threaded thereto to allow relative rotation therebetween, by means of rack and pinion 42, 41, the rod 46 having a pivotal connection 47 with one arm of a crank lever (51), the other arm being connected by a rod (23) to the ranging valve 26, and pivoting of the lever 11 about the longitudinal axis of rod 43 rotating a tubular support 28, rotatably supported in a bracket 12 on the steering column 13, and a hollow shaft 16 connected thereto and surrounding the rod 46, the shaft 16 carrying at its lower end a lever 66 pivotally connected by a rod (22) to the forward/reverse valve (24). A reference marker 37 is secured on an arm 32 of the support 28, and a series of range indicia markers 38 formed on a collar 39 on the shift lever shaft 33, the marks 38 being 72 degrees apart.
Patent GB-1428123-A (GB)
Title: Electrically heated soldering instruments
IPC: B23K3/03
Filed: 1972-06-08
Abstract: 1428123 Soldering ADCOLA PRODUCTS Ltd 31 May 1973 [8 June 1972] 26861/72 Heading B3R An electrically heated soldering instrument comprises a heat pipe (a device including pipe 4 within which a working liquid evaporates at one part and is transported to another part where it releases its latent heat of condensation, returning to the one part assisted by a wick lining the pipe) extending between a bit 11 and a heating element 3 in the form of a coil wound on and supported by the pipe of the heat pipe. In an embodiment the instrument comprises a handle 1 and a mild steel, stainless steel or nickel-iron alloy pipe 4 which contains mercury or a mixture of 73À5% diphenyl oxide and 26À5% diphenyl, introduced into the pipe during manufacture through an extension 5 subsequently welded and crimped. In use the heat from the coil causes the liquid to vaporize and travel to the right as indicated by the central arrows. At the right hand end the vapour condenses, gives up its latent heat and returns to the left hand end along the wick on the wall surfaces as indicated by the smaller arrows. The heated end 11 has an edge 13 forming the bit. In a modification a bit which may be tapered or not is fitted as a removable tip on the end of the tube formed at right-angles to the tube axis.
Patent GB-358229-A (GB)
Title: An improved method of decorating leather, wood, linoleum and other materials
IPC: B44C1/16
Filed: 1930-09-10
Abstract: 358,229. Ornamenting. MAROTZ, O., 3, Trooststrasse, Mulheim, Ruhr, Germany. Sept. 10, 1930, No. 27020. [Class 93.] A process for decorating leather, wood, linoleum, and other materials consists in printing a negative of the design on paper with a colourless solution of wax or resin, transferring the wax &c. from the paper to the leather &c. by means of a hot iron or roller, applying a colouring material to the whole of the surface of the leather &c. so treated, and finally removing the wax &c. with its superposed colouring material. When decorating lacquered leather, a lacquer or varnish may be used as the colouring material and bronze powder or gold leaf may be afterwards applied and pressed in with a hot iron or roller. The process may be repeated for multicoloured work.
Patent GB-705766-A (GB)
Title: Method of selectively connecting a condenser battery to a three-phase circuit
IPC: H02P9/46
Filed: 1951-11-19
Abstract: 705,766. Inductor generators; reactive characteristics of electric circuits, modifying. MASCHINENFABRIK OERLIKON. Nov. 19, 1951 [Jan. 2, 1951], No. 27111/51. Classes 35 and 38 (4) Variable excitation for a variable speed synchronous alternator is provided by selectively connecting, by means of switches 16 ... 33, to the stator (not shown), thereof a condenser battery comprising three or a plurality of three groups 10 ... 15 of condensers, each group consisting of six condenser elements which are connected in series in pairs with the pairs connected in delta, and the switches 22 ... 33 connect each of the corners of the delta to a point between the series connected elements in the opposite leg of the delta so that the elements can be switched from series to parallel operation without interruption. The stator is connected to three-phase circuit bus-bars U, V, W. Various values of capacity, symmetrical about the circuit, are provided by closing certain selected switches as described in the Specification. Certain condensers are more strongly insulated than others.
Patent GB-629540-A (GB)
Title: Improvements in or relating to apparatus for varying the pitch of variable pitch propellers
IPC: F15B15/08
Filed: 1946-09-10
Abstract: 629,540. Fluid - pressure servomotor control systems. SULZER FRERES SOC. ANON. Sept. 10, 1946, No. 27165. Convention date, Sept. 13, 1945. [Class 135] [Also in Group XXXIII] Mechanism for varying the pitch of propeller blades comprises a sleeve 13 rotatably mounted on bearings 22 within a cylinder 11 formed in the driving shaft 5, having a rod 9 passing into the sleeve 13 and engaging it with screw threads 10 and connected at the other end to a crosshead 8 to vary the pitch of blades 2 through links 7. Screw threads 19 on the sleeve 13 engage internal threads on a piston 12 which in turn engages internal threads 16 on the cylinder 11 by means of pins 17 and bearings 18. A bearing 23 surrounds the shaft 5 and contains a control valve 31 in a cylinder 30 having inlet and exhaust ports and ports connected to the cylinder 11 by passages 29, 27 and 28, 26, The valve 31 is controlled by a hand-controlled valve 35 connected to one end of the cylinder 30 by a pipe 36 and by an automatic valve 38, controlled through a spring 37 by the rod 9, and connected to the opposite end of the cylinder 30. The valve 38 causes the valve 31 to return to its central position. when the desired pitch has been set. Specifications 582,263, [Group XXXIII], and 594,124 are referred to.