baber/WOPTO huggingface dataset:
Patent GB-184168-A (GB)
Title: Improvements in or relating to calipers
IPC: G01B3/20
Filed: 1922-07-21
Abstract: 184,168. Charollais, J. Aug. 3, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Linear-dimension gauges.-In a sliding calliper gauge the sliding jaw moves over a bar graduated in millimetres, and carries a slide block capable of being translated by means of a micrometer screw so as to bring a reading- element thereon from the gauging position to the graduation immediately preceding, whereby the additional part to be added to the main reading can be determined. The sliding jaw 1 carries a screw-threaded axis 2 upon which is mounted a rider 3, Figs. 9 and 10, capable of sliding in a notch of the jaw 1 and frictionally on the bar 4. A knurled graduated drum 5 is fitted with slight friction on one end of the threaded axis, the other end of which has lock-nuts 6. When the two jaws of the callipers are in contact, a line B on the moving jaw 1 coincides with the zero line A on the bar 4, and two lines C, D on the rider 3 are situated exactly between the tenth and eleventh millimetre from A, being 0.96 mm. apart. Two lines U, V on a plate 7 rigidly secured to the sliding jaw are situated 1 mm. apart and U is 10 mm. from B so that the marks U, V are astride of the marks C, D. For zero adjustment, the knurled drums and the lock-nuts on the other end of the axis 2 are manipulated so that when the lines A, B, C, D, U, V are in the positions stated, the zero of the knurled drum is opposite a line T on the jaw 1. The thread carrying the rider 3 has a pitch of 0.5 mm. and the drum 5 is divided circumferentially into 50 parts. To take a reading, the apparatus is adjusted to zero and the member to be measured lightly clamped between the jaws. The line B gives the whole number of millimetres, say X. The drum 5 is then rotated until the lines C, D are exactly astride between the (X + 10)th and (X + 11)<th> millimetres of the rod. The amount the drum has to be rotated gives the number of hundredths of a millimetre.
Patent GB-1426901-A (GB)
Title: Dental and surgical bonding-filling material
IPC: C08F2/44
Filed: 1973-04-27
Abstract: 1426901 Hardening agents in polymerizable dental and surgical materials MOCHIDA SEIYAKU KK 27 April 1973 [28 April 1972] 20093/73 Heading C3P A dental and surgical bonding and filling material comprises (a) an acrylate or methacrylate ester (b) a polymer of a (meth)acrylate ester, polystyrene, or polyvinyl chloride and (c) a hardening agent which is the reaction product of a trialkyl boron and oxygen in a molar ratio of 1: 0À3 to 0À9. Inorganic fillers may be included. The material may be used for bonding a piece of synthetic resin to bone or tooth material by (i) coating the surface of the material with asilane, such as alphamethacryl. oxypropyltrimethoxysilane, or hydroxy ethyl methacrylate, solution (ii) then coating the surface with the bonding material, and (iii) pressing the piece of resin against the surface until the bonding material hardens. In examples, the polymerizable mixtures are (a) methyl methacrylate, (b) polymethylmethacrylate or a methyl methacrylate-alphamethylstyrene copolymer, (c) reaction products of Pr 3 B, Bu 3 B or (C 8 H 17 ) 3 B with O 2 , together with in some cases tri- or di-ethylene glycol-dimethacrylate, methacrylic acid or butyl acrylate and glass as filler. The mixtures are used to bond test pieces of ivory and acrylic resin materials, or to bond the resin to a cow's tooth or dog's bone.
Patent GB-827899-A (GB)
Title: Improved fixing means for an electric switch
Inventor: PICKERING IAN JACK
IPC: H01H9/02
Filed: 1957-06-26
Abstract: 827,899. Switch cases. FALK, STADELMANN & CO. Ltd. June 2, 1958 [June 26, 1957], No. 20100/57. Addition to 802,836. Class 38 (5). The spring clips securing a switch to a wall bracket as in the parent Specification are shaped as shown to give a more firm attachment. The edge 7b of the transversely - extending and bowed head 7 effects outward displacement of the head during the forced entry of the bracket bridge-piece and the inclined underside edges 7c then embrace the edges of the bridge-piece with a wedging action.
Patent GB-837200-A (GB)
Title: Improvements in and relating to clutches
IPC: F16D1/033
Filed: 1956-06-29
Abstract: 837,200. Positive clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. June 29, 1956 [July 8, 1955], No. 20206/56. Class 80 (2). [Also in Group XXII] Relates to a form of tooth 3, 4 for faciallytoothed members 1, 2 of a positive clutch of electromagnetic or other type. The teeth roots lie on coned surfaces 6, 7. The addenda h, Fig. a 2, from the tip S to a point distant - above the 2 pitch plane T are curved to a radius r, the remainder of the flank merging tangentially into a straight portion, whereby on full engagement contact takes place over a surface of height a throughout all or part of the width of the tooth. The tips S of the teeth lie on parallel surfaces which may be radial, as shown, or coned, to give line contact over part or the whole width of the tooth on initial engagement and may be sharp, rounded or flattened, in which last two cases the initial contact is on lines just below the tip. The chain lines show the form of the cutter producing the teeth. The teeth may be curved throughout their width, convex and concave on opposite flanks with equal curvature, or the convex flanks x, Fig. 6, may have a triple curvature, the centre portion a 2  having the same curvature as that of the concave flank y, so that contact takes place only over the part a 2  of the tooth width. The curves a 1 , a 2 , a 3  are cycloidal and are generated by different cutter elements b 1 , b 2 , b 3 , Fig. 5, respectively of a cutting-head c, on which the elements have different radial spacing so that, whilst the element b 2  cuts the convex zone a 2  and the whole of the concave width, the elements b 1 , b 3  cut only the convex zones a 1 , a 3 . The cutting head c is secured to a gear-wheel p rolling on a base circle r.
Patent GB-499322-A (GB)
Title: Making disazo leather dyes
IPC: C09B33/06
Filed: 1937-07-21
Abstract: Disazo dyes for leather are made by coupling with a m-diamine of the benzene series, one molecular part of a diazotized aminosalicylic acid, sulphonated or not, and one molecular part of diazotized 4-amino-41-nitrodiphenylamine-21-sulphonic acid.  They yield brown shades.  In examples, dyes from the following components are described:2-hydroxy-3-amino-5-sulphobenzoic acid, 5-amino-2-hydroxybenzoic acid; m-phenylenediamine, m-toluylenediamine, 1-chlor- or 1-nitro-2 : 4-diaminobenzene. Specication 558/93, [Class 2], is referred to.
Patent GB-842317-A (GB)
Title: Improvements in fuel elements for nuclear reactors
Inventor: WATTS BERNARD NELSON
IPC: G21C3/17
Filed: 1956-06-29
Abstract: 842,317. Nuclear fuel rods. BRITISH THOMSON-HOUSTON CO. Ltd. June 25, 1957 [June 29, 1956], No. 20242/56. Class 39(4). A nuclear reactor fuel element consists of a uranium bar sheathed in magnesium or aluminium. the sheath being urged into contact with the uranium by the pressure of the external cooling gas. To maintain the pressure of the sheath against the fuel, the pressure inside the sheath is reduced during manufacture. During operation, the heat developed may cause gases to be given off by the uranium which may force the sheath away from the fuel and so reduce the cooling effect of the external gas flow. To prevent this, a disc of niobium is located within the sheath, at one end of the uranium bar, to absorb the gases.
Patent GB-499323-A (GB)
Title: Improvements in or relating to spark distributors for internal combustion engine ignition
IPC: F02P5/06
Filed: 1937-07-21
Abstract: 499,323. Rotary distributers. BRITISH THOMSON-HOUSTON CO., Ltd., VINSEN, W. W., and POLLARD, J. H. July 21, 1937, No. 20246. [Class 38 (v)] The electrodes of a jumpspark distributer are secured in insulating mouldings mounted interchangeably on a cast metal base, each moulding having sockets to receive the leads ; the base also carries an insulating moulding for the distributer arms. In the arrangement shown, each moulding 4 carries two contacts 5, 6 arranged in two concentric circles. The mouldings are held in place by screws 9 engaging bushings embedded in the mouldings and by bolts 7. To sockets in the mouldings for receiving the leads correspond bosses 3, which may be screw-threaded, on the base 1. The central member 11 is secured by screws 12 engaging bushings 13 embedded in portions 14 of the member 11 which are reinforced with fabric.. The leads from the magneto enter sockets 15 and are connected through metal inserts 16, 17 to the distributing arm.
Patent GB-1189001-A (GB)
Title: Improvements in or relating to the Catalytic Reforming of Gaseous and/or Liquid Hydrocarbons
Inventor: GIGNIER JEAN
IPC: C01B3/38
Filed: 1967-05-02
Abstract: 1,189,001. Making combustible gas. SOC. CHIMIQUE DE LA GRANDE PAROISSE AZOTE ET PRODUITS CHIMIQUES. 2 May, 1967 [11 May, 1966; 14 April, 1967], No. 20350/67. Heading C5E. Gases containing about 60 to 70% H 2  are made by catalytically steam reforming gaseous and/or liquid hydrocarbons having a B.P. not greater than 350 C., containing up to 30% aromatics, and having from 4 to 12 C atoms per molecule. Essential reaction conditions are: pressure 70 to 200 bars, inlet temperature 300 to 700 C., space velocity (litres hydrocarbon/litre of catalyst per hour) up to 30, steam to carbon mole ratio 1.5 to 5, and the catalyst should contain Ni in an amount calculated as Ni oxide, of from 8 to 30% b.w. of the total catalyst. The catalyst support is one or more of the oxides of Mg, Ca, Al, and/or Zr dioxide, and may contain SiO 2  and one or more of the oxides of K, Na, Ba and/or Cr trioxide. Conventional radiantly heated reformers are used, and air, CO, C0 2  or recycled H 2  may be delivered to the inlet. Two-stage reforming processes are described, air being added at the second stage which acts to adjust the CH 4  content of the make gas, and the second stage may be carried out in a chamber containing the tubes forming the first stage.
Patent GB-1357873-A (GB)
Title: Variable thermally sensitive resistance device
IPC: H01C17/232
Filed: 1973-04-30
Abstract: 1357873 Resistors with adjustable temperature coefficient; resistors BECKMAN INSTRUMENTS Inc 30 April 1973 [29 June 1972] 20362/73 Headings H1K and H1S Parts of two resistive tracks may be connected in series to provide a composite arrangement the temperature coefficient of resistance of which may be varied. The arrangement shown has two resistive tracks 42, 43, in this instance in end to end contact. These are disposed around the two conductive tracks 46, 47 which mount the terminals 48, 49 of the device. Greater amounts of one track and lesser amounts of the other are selected by rotation of the mechanically linked but electrically isolated wiper arms 44, 45. In the arrangements (not shown) of Fig. 2, Fig. 5, and of Figs. 6 to 8 there are two concentric resistive tracks bridged by a rotatable wiper. Each track bears one of the terminal connections of the device. In one case one terminal connection is itself a movable contact so that by use of this and the wiper both temperature coefficient and overall resistance may be varied as required. In another case the wiper is connected to a third terminal so that measurements may be made of the resistance of those parts of each track in circuit at any setting. The arrangements (not shown) of Figs. 1 and 3 use linear tracks, either parallel or end-to-end. In all the devices at least one track must have a non-zero temperature coefficient of resistance. Subject to this limitation either track may have a positive or negative coefficient of low or high value. If one track has a positive coefficient and the other a negative, one setting of the device provides an overall zero temperature coefficient of resistance.
Patent GB-196526-A (GB)
Title: Improvements in and connected with vacuum cleaners
IPC: A47L5/18
Filed: 1922-07-26
Abstract: 196,526. McIntosh, J. July 26, 1922. Drawings to Specification. Aspirating apparatus, ejector.-The wateractuated ejector of a vacuum cleaner is provided with a discharge or tail pipe at least six feet long, and its discharge side is formed with a wide rounded neck.
Patent GB-858933-A (GB)
Title: Improvements in or relating to single-axle two-wheel railway trucks
Inventor: LICH RICHARD LOUIS
IPC: B61F1/14
Filed: 1959-06-15
Abstract: 858,933. Railway vehicle bogies. GENERAL STEEL CASTINGS CORPORATION. June 15, 1959, No. 20441/59. Class 103(6). A railway vehicle bogie which is non- swivelable relative to the vehicle body it supports, comprises a frame for a single axle 2 Figs. 1 to 3, carrying a pair of wheels 1, the frame having a transom 5 cast integral with side members 4 to which are fixed axle boxes between pedestals 6; springs 8 mounted between frame seats 7 and spring caps 9 supporting the body 10; a box member 12 on each side member engaging in a housing 11 of the spring cap with the interpositioning of wear plates 13, and an elongated anchor 19 resiliently connected at its ends between a bracket 17 on the transom and a bracket 18 on the body, the anchor being at a lower level than the wear plates 13. A bolt 14 in the housing 11 passes through slots 11a in the box 12 to limit vertical movements thereof. Snubbers 23 are provided at each side of the frame between brackets 25 on the caps 9 and brackets 24 on the frame. Rubber bumpers 15 on the spring caps are engageable with brackets on the side frame members. In another embodiment the transom is straight and rubber bumpers on the side members engageable with brackets on the spring caps. Also an anchor rod is provided at each side between the frame and spring caps at a higher level than the central anchor rod. In a still further embodiment air springs are provided to support the body, further air springs being used to takeup lateral movements of the body. Upper side anchors are connected between the frame and the vehicle body and the axle carries a drive gear box and a torque arm.
Patent GB-800408-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16D3/24
Filed: 1955-07-15
Abstract: 800,408. Universal joints. REMAX, Ltd., BELLOMO, A., and DUMONT, J. B. C. July 10, 1956 [July 15, 1955], No. 20535/55. Class 80 (2). In a universal joint comprising a plate 5 on one member 2 located between the arms 3, 4 of a fork on the other member 1, the adjacent faces of the plate and arms have symmetrically arranged grooves 8, 11, 12, 13 intersecting in the plane through the centre of the.joint and bisecting the angle between the axes of the members 1, 2, the grooves being engaged by abutment members 16, two on each side of the plate 5, each of which comprises a pair of part-cylindrical pads 18, 19 with abutting flat faces 20, 21. The pads are relatively rotatable about an axis normal to the flat faces, such as by a bush 33 or a ball engaging in recesses in the flat faces or by a pin or bolt. Oil grooves 35, 36, 37 are provided in the cylindrical and flat faces and through the pads. A bolt 6 passing through the fork has a spherical portion engaging a spherically-surfaced recess or slot in the plate 5. Specification 760,293 is referred to.
Patent GB-1151774-A (GB)
Title: Injury Protection Apparatus for Passengers of Wheeled, Airborne and other Vehicles.
Inventor: GORMAN JOHN FRANCIS
IPC: B60R21/215
Filed: 1966-05-09
Abstract: 1,151,774. Protecting guards. J. F. GORMAN. 9 Aug., 1967 [9 May, 1966], No. 20540/66. Heading B7B. In a protecting device of the type described in Specification 1,079,612, the protecting cover which retains the expansible element against unwanted inflation is held in position by a pressurized tube around the joint faces of the cover and mounting plate, the pressure being released by an electrically fired cartridge rupturing a diaphragm when release of the cover is required. Alternatively, a deflated tube in between the joint faces can be inflated to release the interengaging parts of the cover and mounting plate. The protecting device is also released from the vehicle by an electrically fired cartridge at some time interval after its operation in the event of an accident.
Patent GB-858144-A (GB)
Title: Improvements in and relating to circular knitting machines
IPC: D04B15/92
Filed: 1957-07-01
Abstract: 858,144. Knitting-machines. MORETTA, G. July 1, 1957 [July 2, 1956], No. 20627/57. Class 74 (2). The pneumatic fabric take-down mechanism of a circular stocking machine comprises a tube 7 concentrically mounted within and rotatable with the needle cylinder and through which air is drawn to draw off the fabric as it is produced. The tube is connected to a receptacle in which the stocking is received after it has been castoff the needles, the receptacle having a door which is opened to enable the stocking to be removed and which is operated by linkage from the cam drum of the machine simultaneously with a valve which cuts-off the flow of air. The top of the tube may have a funnel-shaped member 5 secured to it to guide the fabric into the tube and which has fins 29 to assist the downward movement of the fabric, particularly during the formation of the welt. Alternatively, the funnel-shaped member 5 may be separately mounted and slightly spaced from the tube 7. The pneumatic take-down mechanism may be used to turn the stocking inside out on completion and for this purpose there are provided two concentric tubes 30, 31 both rotatable with the needle cylinder and supported on a bearing 34 such that the space between the tubes communicates with one branch 5 of an air conduit and the space in the inside tube communicates with another branch 51. During the knitting of a stocking a valve 52 ensures that air is drawn by an extruder 17 through branch 50 down between the two tubes. On completion of the stocking the valve is reversed so that the air is drawn through branch 51 down the inside tube and the stocking in passing into the middle of the inside tube turns itself inside out. Instead of two branches of the conduit a valve may be positioned immediately beneath bearing 34 and through which the stocking passes to the receptacle. To assist the turning inside out of the stocking the funnel-shaped member 5 is mounted to move axially within the needle cylinder and on completion of a stocking it is raised to engage the underside of the dial to ensure the flow of air and the passage of the stocking from between the tubes to the middle of the inner tube. Specification 816,782 is referred to. Reference has been directed by the Comptroller to Specification 811,636.
Patent GB-620118-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/50
Filed: 1944-10-25
Abstract: 620,118. Mufti-current generators. BRITISH THOMSON-HOUSTON CO., Ltd., and MAGGS, A. H. Oct. 25, 1944, No. 20730. [Class 35] A machine with a laminated core has a commutator and slip rings on the rotor for D.C. and low-frequency operation and the stator has a high-frequency winding as well as exciting windings, while the commutator is engaged by a pair of short-circuited brushes disposed approximately midway between the main brushes. In the form shown, D.C. is available at terminals 6, 7 through compensating coils 4, 5 or from terminals 14, 7 if it is desired to include series field winding 13 while terminal 10 connected to short-circuited brushes 8, 9 permits three-wire operation. The A.C. (lowfrequency) winding 15 is combined with the commutator winding 1 to give current at terminals 19, 20 through transformer primary 24 which with winding 25 in series with the stator high-frequency winding 26 induces current in transformer secondary 23 to feed compensating coil 21 through rectifier 22. The winding 1 may be tapped to serve as the lowfrequency winding or the latter may be a separate winding and may be polyphase. Specification 620,119 is referred to.
Patent GB-139418-A (GB)
Title: Improvements in or relating to electrical alarm or door security devices
IPC: H01H3/16
Filed: 1919-08-25
Abstract: 139,418. Krone, K. Aug. 25, 1919. Burglar alarms.-Comprises a device for completing an electric circuit to actuate a bell or other alarm when a door bolt is retracted or when the door is shaken. The bolt c is formed with a recess adapted to receive a nipple o on the offset end e of a pin d secured within a sleeve f carrying an adjustable contact ring k slightly separated from a contact member n carried by a support on the door plate t. The sleeve f is adjustably secured to the pin d by a set-screw g, and is guided in a cylindrical housing i, the screw g projecting through a slot in the housing and being pressed towards the bolt by a spring p.
Patent GB-822732-A (GB)
Title: Indigoid dyestuffs and process for their manufacture
IPC: C09B7/06
Filed: 1956-07-05
Abstract: The invention comprises indigoid dyes of the formula <FORM:0822732/IV(c)/1> in which Hal is halogen, and n is 1,2, or 3. They are made by condensing an 8-halogen-1.2-naphthioindoxyl with isatin or a nuclearly halogenated derivative thereof, e.g. in an inert solvent.  The products dye wool, silk, nylon, cellulose acetate, regenerated cellulose.  In examples, 8-chloro-1.2-naphthioindoxyl is condensed with isatin, 5-bromisatin, 5.7-dibromisatin, or 5.7-dichlorisatin in chlorbenzene.
Patent GB-232158-A (GB)
Title: Improvements in or relating to rotary valves for internal combustion engines
IPC: F01L7/04
Filed: 1924-09-04
Abstract: 232,158. Rigaud, L. R. April 14, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Valves.-Rotary valves are cooled by the circulation of the air or gas charges through passages in the valve and cylinder head before entering the combustion chamber; or by circulation of air through such passages by means of fans &c. independently of the charge. The arrows in Fig. 2 indicate the flow of the charge from the inlet 13 through ports 21, passages 19 formed within the walls of the valve 1, ports 20, and inlet ports 3 into the combustion chamber. In a modification, the charge circulates through passages in the centre part 7 of the cylinder head before passing through the passages 19 of the valve.
Patent GB-1146528-A (GB)
Title: Photographic reproduction process and sheet materials therefor
IPC: G03C8/28
Filed: 1966-05-12
Abstract: 1,146,528. Receiving sheet for silver salt diffusion transfer. EASTMAN KODAK CO. May 12, 1966 [May 17, 1965], No.21020/66. Heading G2C. A photographic receiving sheet for the silver salt diffusion transfer process comprises a support bearing on one side thereof two layers containing silver precipitants, wherein the layer nearest the support is white or light-coloured and is opaque to light. The opacifier may be T 1 O 2 , ZnO or BaSO 4 . The silver precipitants may be colloidal Ag, Au, Pt, Pd or Hg, sulphides of Zn, Ag, Ni, Pb, Sb, Cd or Bi and complex salts thereof with thioacetamide, dithio-oxamide or dithiobiuret, selenides, thiourea, stannous salts and fogged silver halide. The B opaque layer may be opacified by vesicles, crystallization on blushing with a non-solvent during manufacture.
Patent GB-1005734-A (GB)
Title: Electrical terminal assemblies
Inventor: DEAKIN STANLEY THOMAS
IPC: H01R9/16
Filed: 1961-06-10
Abstract: 1,005,734. Binding-posts. SABER PRODUCTS (PATENT) Ltd. June 8, 1962 [June 10, 1961], No. 21050/61. Heading H2E. An electrical terminal assembly comprises a metal tube 12 round which is moulded a P.T.F.E. bush 11 having a flange 1 la which abuts the surface of a housing 13 into a hole 13a in which the bush is forced. Tube 12 is of clover-leaf crosssection and has projections 12<SP>1</SP> to retain it in the bush. A spigot 14 may be inserted in the central hole or wires may be distributed about the tube and secured by dip soldering. In modifications the bush may be closed at either end, the tube 12 may be replaced by a circular metal plug with through bores in it, or the bush may have a plurality of individual or paired conductive tubes moulded in it. A further P.T.F.E. bush with a spigot moulded in it may be inserted in one of the tubular holes.