baber/WOPTO huggingface dataset:
Patent GB-253928-A (GB)
Title: Improvement in crank shaft lapping machine
IPC: B24B5/42
Filed: 1926-06-17
Abstract: 253,928. Player, S. June 17, 1925, [Convention date]. Block, rubber, and like apparatus; spindles and the like, treating: spindle-mountings. - A machine for lapping crank shafts consists of a base 20 upon which are mounted a headstock 23 carrying a shaft 26 provided with a centre 41, and a tailstock 24, adjustable on ways 25 and carrying a centre 43. The centre 43 is mounted in a sleeve 44 running on ball bearings 47, 48 in a sleeve 46, which is slidable in the tailstock 24 and is pressed up to the work by a spring 51; a cord 53 secured to the sleeve 44 passes over pulleys 54, 55 to a counter-weighted pedal lever 56, depression of which withdraws the centre 43 from the shaft S. The shaft 26 is driven by a belt from a shaft 30 which is provided with a friction clutch 35 controlled by a handle 38 and a rod .37, which, when the machine is in operation, lies below the lever 56, preventing depression thereof. The crank shaft S is reciprocated axially during lapping by a pivoted fork 62 having rollers engaging a grooved member 60 on the shaft 26. the fork being rocked, through a rod 65 by a crank pin 66 adjustably carried by a plate 69, which is driven through chain gearing 72, from the shaft 30. The lapping-members are mounted on shafts 77, 78 supported by frames 75, 76 and each comprises a hub 85 with a depending arm 84, the hub being secured by a screw 86 to a bushing 80, the bushings being mounted by bearing inserts 81 on the shafts 77, 78. Oil may be supplied by a tube 87, and the arm 84 also has therein an oil passage 90 for the lower bearing thereof. The arm 84 has pivoted at its lower end 93 a lap holder 91 forked to receive the part 93, a bearing brushing 94 being provided, and the parts being held in correct position by a stud 97 and caps 95,.96. The lap holder has a cross bar 100 to which are pivoted a pair of levers 102, 103 moved together or apart by toggle levers 104, 105, and the lever 102 carries the lower lap 112, which is centred by a pin 115 with allowance for a small amount of angular movement, and the lever 103 carries the upper lap 113 on the spherical end of an adjustable stud 120 mounted in the lever; an oiling device 122 is provided. The laps have a central recess in which may be placed a felt pad, and are of such axial length that the reciprocation of the crank shaft causes the whole length of the bearing portion to be lapped. The main bearings, as well as the crank pins, may be lapped simultaneously.
Patent GB-874065-A (GB)
Title: Apparatus for suspending pipe strings within a well
IPC: E21B33/04
Filed: 1960-05-02
Abstract: 874,065. Pipe suspension apparatus. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. May 2, 1960 [May 4, 1959], No. 15337/60. Class 85. An apparatus for suspending a string of pipes within a well comprises a suspension body 11 having an axial bore therethrough with a slip bowl containing first slip segments having second slip segments with faces adapted to grip a pipe mounted therein. The assembly comprises one or more sections depending on the number of pipes to be suspended; sections 11a and 11b, Figs. 1-3, being provided with individual slip assemblies 17a and 17b each capable of suspending a pipe string with the outer string 12 being suspended by welding at 18. A plurality of slip segments 26 are mounted within the slip bowl 25, the outer faces 28 having the same taper as the bowl. Slip keys 32 sliding in grooves 31 keep the segments in alignment within the bowl. Packing 33 is mounted in each segment 26, such that when' the segments are forced against the seat 36, the packing expands so that it seals against the bowl 25 and the suspended pipe and forms a complete sealing ring. Normally each segment 26 is maintained in its inoperative position by a shear pin 37. The segments may move radially within the bowl by means of bolts 43 sliding within slot 45 beneath the drive plate 42. Hydraulic fluid may be applied through port 52 which operates piston 47 connected to the drive ring 42. Auxiliary slip segments having serrated inner surfaces 54 and sloping outer surfaces 55 are slidably mounted within segments 26 and are normally held in a retracted position by means of spring loaded pins 60. Compression springs 64 urge the secondary segments downwards and simultaneously urge the inner serrated faces against the pipe casing positioned within the bore.
Patent GB-199924-A (GB)
Title: Improvements appertaining to flyers for spinning and like machines used in the production of yarns or threads of fibrous substances
IPC: D01H7/48
Filed: 1922-06-01
Abstract: 199,924. Rhodes, L., Gill, H., Milnes, J., and Bentley, J. E. June 1, 1922. Spindle apparatus.-Relates to mounting and securing guide-eyes 2 in the ends of radiating arms 3, 3<a> supported on the shoulders of a flyer. The guide-eyes 2, Fig. 11, are formed with a circumferential groove a and are secured in coacting slots b, c at the ends of the arms 3, 3a, Fig. 8. In a modification, the eyes 2, Fig. 4, have a double bevel portion m which is accommodated in taper openings in the arms 3, 3a. In further modifications the composite arm 3, 3<a> is dispensed with, and the eyes 2 are secured by spring-members s to a single arm 3, Fig. 1, or by clinching the ends u, v, Fig. 10, of the holding-slot round the groove of the eye 2.
Patent GB-571855-A (GB)
Title: Improvements in and relating to the suspension of a cable or the like between supports
IPC: D06F53/04
Filed: 1943-09-20
Abstract: 571,855. Straining cables hung from posts. WOODS, H. Sept, 20, 1943, No. 15424. Convention date, Oct 2, 1942. [Class 45] [Also in Groups XIV and XV] A wire etc., stretched between posts, such as clothes lines or tennis net supports, is so mounted that the strain tends to make the posts lean outward. On one post 2 is mounted a side pulley 13 and a rear hook 15, and on the opposite post 1 are a side pulley 17 and a rear pulley 19. The wire, etc., 21 is attached by its end 20a to the hook 15 and passed round a pulley 7 on a ground anchor 3. It is then led over pulley 13 and across to pulley 17, and down thence round a pulley 7 on a ground anchor 4. Finally the wire passes bv way of the pulley 19 to a winch or an adjustable strainer 20. The purchase may be increased by providing a plurality of pulleys at the tops of the posts 1. 2 and on the anchors 3, 4. One of the posts may be dispensed with if a tree or wall is convenient for attachment thereto of the end 20a of the wire.
Patent GB-965638-A (GB)
Title: Dyeing,printing and/or optical brightening of textile material and compositions for such a process
Inventor: GROSCH WALTER
IPC: D06P1/642
Filed: 1963-04-19
Abstract: The invention comprises a process and compositions for dyeing and/or optical brightening of textile materials in which the material is treated if necessary at elevated temperatures in the presence of an alkaline reacting agent with a dye and/or optical brightener having one or more reactive hydrogen atoms preferably attached by nitrogen, oxygen or sulphur, or being capable of forming one or more such hydrogen atoms during the process, and with an uncoloured, non-brightening polyfunctional compound which contains at least two radicals of formula-Y-X-CH2-Z, in which Y is -CH2- or -CO-, X is one of -C­ C-, -CH=CH-or -CH=CCl- and Z is a halogen or quaternary nitrogen atom, or which is capable of forming two or more such radicals during the process.  The dyes used may be water soluble or insoluble and reactive dyes are specifically referred to, many chemical groups of dyes are specified.  Advantageously strongly alkaline reacting agents are used and also those reagents which yield alkali in the dyeing process.  As uncoloured polyfunctional compounds having at least two radicals as above are specified derivatives of hexahydro-1, 3, 5-triacryloyl-s-triazine and dichlorobutin-(2)-ylurea.  Fixation of the dye in the material may be at room temperature or by steaming or dry heating, and the reactants may also be applied separately in any order or together. The fibres which may be dyed include cellulose acetate, polyacrylonitrile and its copolymers, linear polyesters, linear polyamides and natural silk and wool.  The uncoloured polyfunctional compounds are preferably used in aqueous solution but may also be used in solutions of water miscible solvents. Conventional dyeing, printing and dispersing agents are used. Specifications 831,371 and 867,546 are referred to.
Patent GB-1348735-A (GB)
Title: Electro-acoustical transducers
IPC: H04R1/22
Filed: 1972-04-05
Abstract: 1348735 Transducer; diaphragms SIEMENS AG 5 April 1972 [23 April 1971] 15566/72 Heading H4J A transducer consists of a housing containing a diaphragm 10 which is gripped in its peripheral region by a resilient body 8 that rests on the end face of a hollow cylinder 4 containing a disc which is disposed non-centrally of the (height) of the cylinder so as to define unequal size resonant volumes with the rear face of the diaphragm in dependence on which way round the cylinder is located in the housing. The latter criterion permits the transducer to be used interchangeably as a microphone or a telephone receiver. The disc may be hollow with apertures connecting its inner space to one only of the volumes (Fig. 2, not shown) or to both volumes (Fig. 3, not shown). The end faces 6, 7 of the cylinder may have different internal diameters, this feature forming the subject of Specification 1,348,734. A piezo-electric layer 9 may be formed on the diaphragm. The casing consists of two parts 1, 2, with apertures 3 being provided in the front cover part 2. An amplifier may be incorporated in the hollow disc, connections therefrom being made to a conductive layer on the diaphragm.
Patent GB-321630-A (GB)
Title: Guard for safety razor blades
IPC: B26B21/40
Filed: 1929-05-18
Abstract: 321,630. M³ller, P. May 18, 1929. Razors, safety.-A toothed or comb form of guard is provided with a series of pin points a upon which the cutting edges of a flexible blade are supported. Specification 320,824 is referred to.
Patent GB-700096-A (GB)
Title: Improvements in and relating to cutter pick assemblies for mining machines
IPC: E21C35/18
Filed: 1950-06-23
Abstract: 700,096. Pick boxes. MUSCHAMP, N. J., and COWLISHAW, F. June 25, 1951 [June 23, 1950; Nov. 4, 1950], Nos. 15675/50 and 26960/50. Class 68(1) A cutter pick assembly for a chain, disc or drum cutter which may be driven in opposite directions, comprises a pick pivotally mounted on a carrier which has stop means to limit the pick's pivotal movement in opposite directions, and a pair of cutter members brazed to the pick in such oppositely located positions that registration of the pick with the stops respectively presents one of the cutter members into a leading cutting attitude with the remaining cutter member in the trailng non- cutting attitude. In the form shown in Fig. 3, a chain link 4 carries a box in which a pick 2 is pivoted, the pick having two points 5, 6 brazed to it. The pick movement is limited by transverse stops 7, 8 and promiscuous movement of the pick is prevented by lugs 9 or 10 engaging in channels 11 or 12 in the box, which are tapered in the vertical and for horizontal direction. Should the pick stick in one position, it may be released by a hammer-like blow on the lug 9 or 10 projecting from the box. In a modification, Fig. 6, the pick is formed of two separate parts 13, 14 each incorporating one of the points 5, 6. Each part is full thickness and half width at its upper point-supporting part A but of half thickness and full width for the remainder. The two parts are connected by a rivet 17, thus forming a pick as before. Specifications 623,346, 655,633, 700,085 and 700,087, [Group XXII], are referred to.
Patent GB-379366-A (GB)
Title: Improvements in or relating to mercury arc rectifiers
IPC: H01J13/20
Filed: 1931-05-29
Abstract: 379,366. Mercury-vapour rectifiers. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and BARTLETT, A. T., of General Electric Co., Witton, Birmingham. May 29, 1931, No. 15786. [Class 39 (i).] A joint is made at or near the top of the anode shield well above the active surface of the anode, and the overlying extended surfaces of the joint are narrowly spaced apart so that gases may percolate slowly from the interior to the outside of the shield. The shield flange may be bolted to the rectifier cover and spaced thereform by one or more layers of gauze. In a modification, a flange 11 on the anode insulator is clamped between a ring 14 and the shield flange 6, and gauze 13 is placed between the flanges 6, 11. The gauze may be replaced by a metal sheet formed with corrugations or protuberances or by protuberances formed on the flanges. In a further modification, the joint is formed by one or more plates which cover slits in the shield. Specification 339,063, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-716965-A (GB)
Title: Improved device for incorporation of pulverulent material in filter presses
IPC: B01D25/176
Filed: 1951-07-04
Abstract: 716,965. Filters; filtering media; purifying liquids. NEKOLLA, O. E. March 20, 1952 [July 4, 1951], No. 15846/51. Class 46 A filter press "adapter" plate 1, Fig. 1 (Comp), has a number of apertures 2 each of which has' an evenly-diminishing cross-sectional area from one side of the plate to the other and each of which is packed with a pulverulent material 4, Fig. 2. The material may be absorptive, adsorptive or catalytic in nature, or it may be an inert filtering medium. The body of the plate is preferably made of an elastic material which, where lubricating oil is to be filtered, may be a synthetic rubber or a plastic not swelled by the oil. The plate material is preferably capable of slight deformation by the closing pressure so that the pulverulent material is squeezed more firmly into the apertures. The plate is covered on both sides by a single length of filter cloth 3 and is disposed so that the larger cross-section of the apertures is facing towards the incoming liquid to ensure packing of the material in the apertures by the liquid and thus prevent chanelling by shrinkage. Such " adaptor" plates are intended to be inserted between the ordinary plates in the press, thereby enabling the oil or other liquid to be filtered and at the same time to be brought into contact with pulverulent material. According to the Provisional Specification the plate may alternatively comprise a hardened felted cellulose mat and the pulverulent material may be diatomaceous earth, activated fuller's earth or a mixture of them. The mat may be half an inch thick and be enclosed by two thin felted cellulose filter sheets. Alternatively, Fig. 1 (Prov.), the outlet side wall may be integral with the mat. It is stated to be known to incorporate diatomaceous, or activated fuller's earth in felted cellulose filter sheets used in filter presses.
Patent GB-874506-A (GB)
Title: Process for preparing silica-alumina catalyst
IPC: B01J21/12
Filed: 1959-05-08
Abstract: A microspheroidal silica-alumina fluid cracking catalyst is prepared by precipitating a hydrated silica in the presence of 10-70% (based on the catalyst weight) of a finely divided siliceous material, precipitating alumina on to the mixture of silica and siliceous additive material and spray-drying the product, which then comprises 65-85% SiO2 and 15-35% Al2O3 by weight, exclusive of the additive material. The siliceous material may be silica flour, treated or untreated kaolin or fuller's earth.  The catalyst composition may comprise small amounts of, e.g., TiO2 or MgO.  Specifications 675,883 and 855,704 are referred to.
Patent GB-290456-A (GB)
Title: Improvements in placards, posters and the like for advertising purposes
IPC: G09F19/00
Filed: 1927-06-15
Abstract: 290,456. Weisswange, K. A. June 15, 1927. Show-cards.-An advertising placard, poster, or like display device consists of a sheet of paper or pasteboard having a picture, design, or inscription printed thereon in a number of colours, the sheet being uniformly corrugated by a pressing or rolling process so as to have angles of slope lying in a number of planes which are not parallel to one another. Crepe-like places 2 form stripes in transverse direction to the corrugations 1, and cause further dispersal of the light falling on the placard. The distortion of the corrugations may be serpentine or zigzag in shape, or the corrugations may take the form of facets.
Patent GB-517371-A (GB)
Title: Improvements in and relating to air or gas compressors
IPC: F04B39/12
Filed: 1938-05-28
Abstract: 517,371. Compound air compressors. HENZMARK, N. May 28, 1938, Nos. 15985 and 34748. [Class 8 (i)] The low- and high-pressure pistons 14, 15 of a compressor are connected to a crosshead 16 sliding between guides 17 and actuated by a crank 13 through a sliding die 19. Air enters the lowpressure cylinder liner by ports 33 and is discharged through disc valves and spaces 41, 37 to tubes 35 which are brazed to the crosshead guides before insertion into the mould in which the ribbed block or casing 24 is cast. These tubes are inclined at their ends, the lower ends leading to the high-pressure inlet valves; the air finally passes out by the valve 55 to a space 67 leading through holes in the cylinder liner and casing to a check valve 76 and outlet pipe 77 in an attached casing 78. This casing has ducts 83, Fig. 4, leading air from the pipe 77 to opposed pistons of unequal areas, the smaller piston being reinforced by a spring 92. At a certain pressure, the resistance of the spring is overcome, and the piston rod rotates a spindle 94 and a valve plate 97 carried by it, a spring piston 96 acting on a wheel 93 to hold the spindle and valve in either of two positions. In the normal position the valve plate closes an outlet port 101 to atmosphere ; in the excess-pressure position, it opens this port, allowing excess air to pass out from above the check valve 76. According to the first Provisional Specification a clutch in the drive is disengaged by opposed air cylinders to which air is admitted through a valve at a certain pressure. Specifications 387,409 and 411,095 are referred to.
Patent GB-793421-A (GB)
Title: Improvements in and relating to a tilt mechanism for the tilting of venetian blind slats
IPC: E06B9/307
Filed: 1956-05-23
Abstract: 793,421. Venetian blinds. KIRSCH CO. May 23, 1956 [Sept. 12, 1955], No. 15988/56. Class 20(3) In order that a cord 23 for actuating the tilt mechanism of a venetian blind can be adjusted to bring both ends accessible to an operator, after cumulative slippage has taken place around its associated drive pulley 19, the latter is made of a deformable material, e.g. neoprene, so that the friction between it and the shaft 7 of a worm drive 8 of the tilt mechanism. normally sufficient to ensure normal functioning of the mechanism, can be overcome by a continued pull, after the tilt mechanism has reached an end position, on the appropriate end of the cord 23 which tightly engages a peripheral V-shaped groove 23 in the pulley 19 to rotate it round the shaft the desired amount. The pulley 19, forced over an outer flange 17 of the shaft 7 for location between it and an inner flange 16, has keyways 21 which, normally engaged by splines 18 on the shaft 7, disengage during adjustment of the cord 23. A tilt rod 2 accommodated in a head member 1 has key-ways 3 for engaging tilting members, not shown, and also a worm gear 4 meshing with a driving worm 8. The tilt rod 2 passes through holes 13 in a pair of identical opposed worm gear housing members 10 having half cylindrical grooves 11 which co-operate to provide a housing and form bearings for the worm 8, and recesses 12 which also co-operate to form a housing for the worm gear 4. When the members 10 are fitted together pins 14 on the members each fit into a corresponding hole 15 in the opposite member, and projections 33 on their upper and lower corners engage in corresponding notches 34 in the resilient arms 31 of a bracket 29, the arms 31 being sprung apart to receive the worm gear housing. The bracket 29, secured to a plate 25 which is frictionally retained between the sides of the head member 1, carries a bearing 28 for the shaft 2. A cord guide 36, made e.g. of nylon, is snapped into position in an opening in the base 27 of the head member.
Patent GB-1045371-A (GB)
Title: Circuit arrangement for smoothing peaks which occur in traffic in telecommunication installations, particularly satellite telephone exchanges
IPC: H04Q3/00
Filed: 1965-04-14
Abstract: 1,045,371. Automatic exchange systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. April 14, 1965 [April 14, 1964; June 26, 1964], No.16031/65. Heading H4K. In a small exchange in which connections are set up over link circuits VSA, an audible tone is fed to the connected subscribers when nearly all the link circuits are in use as a warning that unimportant conversations should be ended, the tone being interrupted at different rates according to the degree of urgency. The number of link circuits in use is measured by the current through windings w1, w1<SP>1</SP> of two magnetic cores K, K<SP>1</SP> which are differently biased by windings w2, w2<SP>1</SP> so that as the traffic increases an output is produced first in winding w4 of K and then in winding w4<SP>1</SP> of K<SP>1</SP> to switch over bi-stable circuits S 1 , S 2 . These in turn control a timing circuit ZS which opens a rectifier gate first at a slow rate and then at a fast rate to supply tone from a generator Gen to the link circuits. S2 also provides a potential Id which controls a switching operation to deny further callers access to the link circuits, although allowing certain privileged subscribers to call an operator who is able to set up connections.
Patent GB-203406-A (GB)
Title: Improvements in or relating to the manufacture of sound records
IPC: G11B3/70
Filed: 1922-06-09
Abstract: 203,406. King, H. J. June 9, 1922. Pulp, adding special substances to.-Blanks for making sound records are prepared from fibrous material such as paper stock or cellulose intimately mixed with resins, resin acids or resinates. The admixture may be effected by dissolving the resin &c. in a solvent, which is allowed to evaporate after addition to the fibrous material, or is precipitated by addition of a reagent. In an example, sodium resinate dissolved in alcohol is mixed with the fibrous material, and dry aluminium sulphate is added. The blanks are afterwards coated with a shellac composition and impressed in a matrix. Specification 6589/91 is referred to.
Patent GB-987288-A (GB)
Title: Improvements in or relating to automotive vehicle brake
IPC: F16D57/04
Filed: 1962-04-26
Abstract: 987,288. Hydrodynamic brakes. DANA CORPORATION. April 26, 1962 [June 23, 1961], No. 16034/62. Heading F2E. [Also in Division B7] An hydraulic brake 14, comprising a housing in three parts 64, 66, 68 having blades 72 and a rotary member 78 with blades 80, acts upon the propeller shaft 56 of a vehicle. A bracket 18 is bolted to the transmission casing 12 and a bracket 22 is bolted to the brake housing 14, the brackets being connected by rubber bushed trunnions 34, 36 to allow limited universal movement to the housing. The propeller shaft 56 is connected by a universal joint 52 to the transmission output shaft and by a universal joint 58 to the differential gear. The rotary member 78 is splined to a sleeved extension 53 of a member 54 of the universal joint 52 which has a splined connection permitting axial movement with the propeller shaft 56. The housing 14 is supported by bearings 84, 86 upon the sleeve 53. The yokes 26, 28 and 30, 32 of the brackets 18 and 22 may be disposed at 90 degrees and connected by a suitable member to allow freer movement in two planes.