baber/WOPTO huggingface dataset:
Patent GB-1435049-A (GB)
Title: Lapping fixture for use in lapping of workpieces
IPC: B24B37/27
Filed: 1974-11-18
Abstract: 1435049 Lapping BURROUGHS CORP 18 Nov 1974 [3 Dec 1973] 49764/74 Heading B3D A fixture for holding a workpiece 72 to be lapped by being urged against a substantially flat lapping surface for grinding away portions of the workpiece extending beyond a lapping plane associated with the fixture, comprises spacing means 84 having a substantially flat contact surface which defines the lapping plane and is to be urged against the lapping surface, a fixture body 78 mounted to the spacing means, holding means 88 for holding at least one workpiece, means 98 rotatably mounting the holding means to the fixture body, and means 110 for controllably rotating the rotatable mounting means to a selected orientation with respect to the lapping plane. The workpieces may be "flying heads", a type of magnetic transducer having an air bearing face 12, Fig. 1, with one or more angled flat portions or facets 16 or a part-cylindrical face (38, Fig. 3, not shown). The fixture body 78 has parallel end faces 80, 82 with spacing members or feet 84 extending beyond end face 82 and having alumina pads 86 for engagement with a rotating lapping surface (not shown). The feet 84 are slidable in bores 130 in the body and threadedly engage screw threads 144 of adjusting screws 142 having screw threads 148 engaging threads in a cover 150 of the body 78. The screw threads 144, 148 are of different pitch whereby one rotation of the screw adjusts its foot 84 by 0À001 inch. Adjustment of the screws levels the fixture and determines the lapping plane which is set by the measurement of the distance between the plane and the ends of posts 124. A pair of linkage arms 98 are connected by respective leaf springs 102, which act as pivots, to the body 78 by bolts 106. A workpiece holding station 88 is mounted at the bottom of each arm, and the upper ends of the arms are connected by pivots 100 to a common link bar 96 which is longitudinally movable against the pressure of a spring 118 by rotation of a cam 109 which abuts the link and is movable to a selected position by a lever 110, where flat and angled faces are to be lapped on the workpieces, or is continuously rotated when part-cylindrical faces are to be lapped on the workpieces. The workpieces 72 are spaced from the holding stations 88 by posts 162 and located by dowels 114. The workpieces are secured to the holding means by wax in the space formed by the posts 162.
Patent GB-1103078-A (GB)
Title: Vitreous enamel powder
IPC: C03C3/072
Filed: 1965-11-24
Abstract: A composite vitreous enamel powder comprising glass frit particles having bonded to their surfaces relatively finely divided refractory pigment particles is prepared by mixing an aqueous slurry (1) of frit, having pH at least 8, with an aqueous slurry (2) of pigment powder, having pH not higher than 5; separating the thus agglomerated particles from the aqueous phase; heating, e.g. at 400-650 DEG  C., the agglomerates to form a loosely-bonded cake; and breaking up the cake into its individual fritpigment composite particles.  In slurry (1) the frit particles become negatively charged by adsorption of OH- groups, and in slurry (2) the pigment particles become positively charged by adsorption of protons.  On mixing slurries (1) and (2), a condensation reaction takes place between the hydroxylated frit surfaces and the protonated pigment surfaces, thus bonding the particles.  The frit particles diameter may be 1-45m , and the pigment particle diameter may be 1m  or less.  The frit may be a lead borosilicate. The pigment may be, e.g.:  TiO2, which may be coated with Al2O3, SiO2, ZnO or other oxides; iron oxide or alumina spinel based pigments, e.g. CoAl2O4 (Thenard's blue); Cr2O3/ Al2O3 mixed crystals; or CdS2/CdSe2 solid solutions.  The powder may be transferred electrostaticlly to the surface to be enamelled through a stencil screen, with or without the use of an off-set plate.  The surface may be hot, e.g. a glass bottle hot from moulding.
Patent GB-1081328-A (GB)
Title: Improvements in or relating to lubricants
IPC: C10M125/00
Filed: 1964-12-09
Abstract: A lubricating composition comprises an inorganic fluorine compound and 3 to 30% by weight of an oxide and/or sulphide of chromium, molybdenum or tungsten.  The fluorine compound may be an alkali metal or alkaline earth metal fluoride, or a complex fluoride such as cryolite.  The composition may be used dry, optionally containing other solid fillers, or in liquid or paste form in oils, e.g. mineral oils, or greases or incorporated in plastics materials.
Patent GB-992837-A (GB)
Title: Improvements relating to rotary-piston internal combustion engines
IPC: F01C19/10
Filed: 1963-12-18
Abstract: 992,837. Rotary piston internal combustion engines. DAIMLER-BENZ A.G. Dec. 18, 1963 [Dec. 21, 1962], No. 50058/63. Heading F1F. In a rotary piston I.C. engine of trochoidal type in which a three or more-sided piston 3, Fig. 1, rotating on an eccentric 1 slides by radial seals (not shown) disposed at its corners over the peripheral surface 4 of the housing 5 and by axial seals at its ends 6 over the side-walls 7 of the housing, each axial seal, besides the gas seal (not shown), includes two concentric oil-sealing rings 8, 9 fixed in the piston with an annular space 10 therebetween divided by radial ribs 11, Fig. 2, into a number of separate chambers 12. The relatively small diameter of the inner ring 8, permits of a low level 16 of the oil thrown outwardly by centrifugal force, with the oil passing out through an opening 13 in the housing side-wall. Any oil that passes the lip of the ring 8 is received in the chambers 12 and the level of this oil never extends beyond the lip 14 of the outer ring 9. This oil is carried round in the chambers until on reaching the side remote from the eccentric the oil passes in the direction of the arrows 18 through the opening 13. Alternatively this oil may pass through passages 20 into compartments 19 of the piston containing the cooling oil.
Patent GB-1294356-A (GB)
Title: Improvements relating to the manufacture of water traps
IPC: E03C1/284
Filed: 1969-10-23
Abstract: 1294356 Blow-moulding water traps Mc- ALPINE & CO Ltd and J E McALPINE 19 April 1971 [23 Oct 1969] 50187/69 Heading B5A U-shaped water traps are formed by blow- or vacuum-moulding a plastics tube, the trap having inlet and outlet limbs, an interconnecting U-bend and a restriction forming a neck in the inlet limb of smaller external diameter than the inlet limbs itself. The neck may be, as moulded, of greater wall thickness than the inlet limb, but may be internally machined. The outlet limb may also be provided with such a neck. A plastics tube may be extruded, a blowing mandrel inserted therein, and the mould halves closed therearound to squeeze the tube therebetween and air blown through the mandrel. The neck may be beaded or screw-threaded.
Patent GB-1513199-A (GB)
Title: Screw anchors
IPC: F16B37/00
Filed: 1976-12-02
Abstract: 1513199 Screw sockets ILLINOIS TOOL WORKS INC 2 Dec 1976 [5 Dec 1975] 50208/76 Heading F2H A plastics screw socket comprises an axially bored head 22a and shank 20a, the shank being slotted for forcing into a lesser diameter hole in a workpiece, a pin 28a having deformable projections 30a being driven into the bore to force the shank segments against the bore sides and temporarily hold the socket against turning during the initial stages of receiving a screw. When a screw 50a is driven into the workpiece, the pin 28a may be forced out of the bore. The pin may be initially attached to the socket in the position in Fig. 7 by a frangible web. The collar 22a of the socket may be slotted as at 60 and the material radially opposite thinned to facilitate deformation (as at 70) Figs. 15, 16 (not shown).
Patent GB-1135108-A (GB)
Title: Binary digital circuits
IPC: G06F7/575
Filed: 1966-11-09
Abstract: 1,135,108. Logic circuits utilizing inverting gates. LITTON INDUSTRIES Inc. 9 Nov., 1966 [2 Dec., 1965], No. 50332/66. Heading G4A. A binary digital logic circuit comprises five inverting gates (an inverting gate being defined as having an inverting action between its several inputs and its output) to which true and complement signals representing corresponding bits of two operands are applied together with three control signals. The gates 10, 12, 14, 16 and 18, which may be NAND or NOR gates are connected as shown in Fig. 1 and are supplied with signals from flip-flops 20, 22 comprising corresponding stages of two operand registers. Control signals are applied at L 1 , L 2 , and L 3 . Signals P i -1 and Q i -1 represent carry signals from a lower order stage and P i , Q i  represent carry signals to a higher order stage. The output signals at Ri and Si represent different functions of the input signals, depending on the control signals L 1 , L 2  and L 3 . With L 1  = L 2  = L 3  = 0 the output represents the arithmetic sum or its complement depending on whether the carry input signals are complements or true signals. With L 1  = L 3  = 1 and L 2  = 0, the output represents the complement of the logical product (i.e. A i . B i ). With L 1  = L 2  = 1 and L 3  = 0, the output represents the logical sum (i.e. A i  + B i ). With L 1  = 1 and L 2  = L 3  = 0, the output represents the non-equivalence function (i.e. A i  B i  + A i  B i ). The manner in which the circuit of Fig. 1 may be connected into a multi-stage parallel adder is illustrated in Fig. 2 (not shown).
Patent GB-1244002-A (GB)
Title: Improvements in and relating to interference filters
Inventor: SEELEY JOHN SCOTT
IPC: G02B5/28
Filed: 1968-10-23
Abstract: 1,244,002. Infrared filters. HOWARD GRUBB PARSONS & CO., Ltd; J. S. SEELEY and S. D. SMITH. Oct.21, 1969 [Oct. 23, 1968], No.50381/68. Heading G2J. In an interference filter for infrared radiation some of the layers 2 are of caesium iodide. The alternating layers 3 may be of germanium, silicon, tellurium or lead telluride and the substrate 1 may be of germanium, silicon or crystal quartz. The substrate may be heated during the vacuum deposition of the layers and a protective coating 4 such as polystyrene may be formed on the surface of the filter.
Patent GB-1095500-A (GB)
Title: Fuel cells and electrodes for use in such cells
Inventor: TERENCE SHORT RICHARD
IPC: H01M8/06
Filed: 1965-12-01
Abstract: 1,095,500. Fuel cells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Dec. 1, 1965 [Dec. 8, 1964], No. 50978/65. Divided out of 49896/64. Heading H1B. A fuel cell electrode comprises a porous non- conductive substrate, e.g. microporous P.V.C. covered on at least one side by a porous relatively conductive layer, e.g. silver or silver/ rhodium, and at least two superimposed layers of catalyst material each catalyst layer comprising a catalyst and a binder. The binder of the catalyst layer nearest the substrate, i.e. the primary layer, has strong binding properties and is post-chlorinated polyvinyl chloride, a chlorosulphonated polyethylene or polymethylmethacrylate whilst the binder of the secondary catalyst layer has grain-forming properties and is polyethylene. The catalyst in the catalyst layers comprise one or more of platinum, palladium, osmium, iridium, rhodium, ruthenium, nickel silver or carbon, preferably platinum on carbon granules. Solvents for the binders are specified. In further examples the binder in both catalyst layers is post-chlorinated P.V.C. or polyethylene.
Patent GB-1379932-A (GB)
Title: Dual adhesive construction unit and method
IPC: E04F13/08
Filed: 1972-11-07
Abstract: 1379932 Laminates UNITED STATES GYPSUM CO 7 Nov 1972 [19 Jan 1972] 51260/72 Heading B5N [Also in Division E1] Panels 4 of gypsum board, fibre board or plywood are secured to studding or joists 3 of wood, laminated gypsum strips, metal, plastics or ceramic material by means of intermittent and alternate strips of pressure sensitive adhesive 5 and permanent adhesive 6. The strips of adhesive may be applied to the panels before erection or to the studs. The pressure sensitive adhesive may be in the form of double sided viscoelastic adhesive on a plastics tape. - The permanent adhesive may be a slowly adhering adhesive developing a high dry bond strength without substantial dimensional change with time under load. The cladding may be used in walls or ceilings and requires no further fixing elements although screws are disclosed as fixing the edges of test panels. See Specification for various different types of adhesives and tape materials which may be used.
Patent GB-1246065-A (GB)
Title: Improvements in or relating to rotating electric machines
Inventor: THOMAS S
IPC: H02K1/14
Filed: 1969-10-21
Abstract: 1,246,065. Electric rotary machines having stationary field and armature windings. SOC. ANON. POUR L'EQUIPEMENT ELECTRIQUE DES VEHICULES S.E.V. MARCHAL. 21 Oct., 1969 [31 Oct., 1968; 13 May, 1969; 16 May, 1969; 14 Aug., 1969], No. 51538/69. Heading H2A. In a rotary electric machine, e.g. a low power motor vehicle alternator, comprising a slotted stator 2 having a winding and a rotor 3 having mounted on the same spindle 4 a magnetic core 9 coaxially between two cheeks 6 each of which has at its periphery and parallel with the spindle castellations 7 separated by gaps 8 the castellations of one cheek facing the gaps of the other, a field winding 10 disposed around the core and between the cheeks is supported by a ease 11 which hooks on to the stator by elements occupying, and of less thickness than, the space between the two planes in which are the ends of the castellations of the two cheeks, the elements terminating in hooking members 14 which are slid into selected stator slots. In the embodiment shown the case 11 is a moulding, e.g. of plastics, with which are integral the elements in the form of radial projections 13 and the members 14, reinforced by ribs 15, the case having ventilating apertures 12, and the castellations and their gaps being trapezoidal. Figs. 4 to 36 disclose alternative winding case constructions and modes of securing their hooking members to the stator, and includes arrangements wherein the winding is divided into two series connected axially separated parts. The stator teeth 20a, Fig. 39, are preferably narrow at their roots.
Patent GB-1068350-A (GB)
Title: Improvements in curtain lining heading tape
Inventor: SELLERS JOHN
IPC: A47H13/16
Filed: 1964-12-09
Abstract: A heading tape for suspending a curtain lining has two woven-in draw cords, and a row of button holes disposed between one draw cord and the adjacent edge of the tape.  Two shuttles are employed, each inserting weft from one edge of the tape to one side of the button hole; between successive button holes, one shuttle weaves the whole width of the tape while the other inserts weft in six warp ends on each side of the line of button holes to reinforce the ends of the holes.
Patent GB-1135377-A (GB)
Title: Improvements in or relating to exhaust units for jet propulsion units
Inventor: JUMELLE LOUIS FRANCOIS
IPC: F02K1/40
Filed: 1966-11-21
Abstract: 1,135,377. Jet propulsion nozzles. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 21, 1966 [Nov. 22, 1965], No.52092/66. Heading F1J. A jet propulsion engine nozzle assembly comprises a main nozzle having a fixed convergent portion 19 and flaps 20 movable between convergent and divergent positions 20', 20" respectively, and a variable area auxiliary nozzle 12 branched from the main jet pipe to provide fine control of the exhaust area. A convergent-divergent member 22 having adjustable flaps 23 is mounted downstream of the flaps 20, secondary air 10 being supplied to the throat 22 defined thereby. A similar member 13 downstream of nozzle 12 is also supplied with secondary air 10'. In modifications, Figs. 1 to 6 (not shown), the main nozzle is non-adjustable and all control is by the variable area auxiliary nozzle. Two main and two auxiliary nozzles may be provided to eliminate couple effects. Reheat combustion may occur in the main jet pipe and the nozzle thereof may be fitted with a silencer. The area of a non-circular auxiliary nozzle is controlled by an axially slidable ramp (17), Fig. 6 (not shown), rather than by the flaps shown. Guide vanes (7), Fig. 3 (not shown), may direct gases from the main into the auxiliary jet pipe.
Patent GB-1335635-A (GB)
Title: Gas discharge tube getter
IPC: H01J17/24
Filed: 1971-11-11
Abstract: 1335635 Gettering PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 Nov 1971 [14 Nov 1970] 52408/71 Heading H1D A getter element 1 for use in mercury vapour discharge devices comprises a gettering substance 2 which is active at room temperatures and which is separated from the atmosphere in the tube by sintered porous bodies 3. Suitable getters are zirconium hydride or a mixture of zirconium, aluminium, tungsten and nickel. The porous bodies can be tungsten.
Patent GB-1215170-A (GB)
Title: Machine tool control system
Inventor: WATANABE AKIRA
IPC: G05B19/418
Filed: 1968-11-06
Abstract: 1,215,170. Programmed control of machine tools. INTERNATIONAL BUSINESS MACHINES CORP. Nov.6, 1968 [Dec.21, 1967], No.52478/68. Heading G3N. A control system for a plurality of machine tools comprises means for reading out command words form a data store and controlling a decoder system in response to a second portion of a word, indicating the machine tool, to emit a pulse to enable a gating circuit directing a first portion of the word, indicating numerical control information, to the machine tool. As shown, a central processing unit CPU has a memory M storing, for each machine controlled, a plurality, of command words appearing at every address which is a multiple of the number of machines. The unit CPU executes a read out of a command word, in response to a pulse from a synchronizing signal generator ES, into a selector circuit SEL by which it is distributed, through gating circuits, not shown, according to the machine number and with the exception of the machine number bits into a command decoder CD.1-5. The command decoder decodes each two bits of axis control information and converts them into an energizing signal for a driving amplifier DR for a servomotor of the machine tool MT.1-5. Additional bits control functions, such as operations of a cutter shaft or supply of cooling oil, through an auxiliary function control circuit AUX.
Patent GB-1188919-A (GB)
Title: Improvements in or relating to Link-Spring Bases for Mattresses and Other Upholsterer Articles.
IPC: A47C23/15
Filed: 1968-11-07
Abstract: 1,188,919. Mattresses. P. A. RENTROP G.m.b.H. 7 Nov., 1968 [13 Dec., 1967], No. 52727/68. Heading A4M. A linked wire mattress comprises a tubular border frame 1 supporting a mesh defined by longitudinally extending spaced chains each comprising separate articulated links, such as 5, 6, each link, e.g. 5, having a hook 5b at one end and an eye 5a at the opposite end and successive links 5, 6 being interconnected by engagement of a hook 5b with an adjacent eye 6a, and cross-connectors 7 with a hook 7a at each end to interconnect adjacent chains, the arrangement being such that the connectors 7 and a pair of consecutive links 5, 6 of each of two adjacent chains together define a hexagon. The mesh is connected to the frame 1 by tension springs 2 with hooked ends (2b, 2a) which respectively engage a hole (1a) in the frame 1 and eyes of the chain links.
Patent GB-1209448-A (GB)
Title: Improvements in a flapped carton closure and sealing apparatus
Inventor: WAINBERG DANIEL
IPC: B65B7/20
Filed: 1967-11-21
Abstract: 1,209,448. Carton closing apparatus. D. WAINBERG. 21 Nov., 1967, No. 52905/67. Heading B8C. [Also in Division B2] A carton of the kind having closure flaps sealed to side or end walls by adhesive, has the flaps folded down and held during adhesive setting by combined folder carriers mounted on a member rotatable in a vertical plane above conveying means for the incoming cartons. An adhesive applicator (see Division B2) glues the carton walls or flaps while they are on the conveying means. A plough may fold down a hinged carton lid on the incoming cartons. Cartons 59 are fed in continuously on a conveyer 85 and on to rails 58 over the applicator 30, the glue applying arms of which take over the forwarding of the cartons, Fig. 11 (not shown), and beneath an arm 104, Fig. 1, or wire (107), Fig. 12 (not shown), on to rails 58. A disc 33 rotates continuously and has folder carrier frames 34 pivoted on it and maintained horizontal by chain and sprocket means, Fig. 5 (not shown). Each frame descends on a carton, folding down its flaps and carrying it upwards. In some embodiments, a number of cartons is gathered by each frame, each added carton pushing the others upwards until the top one is clear of the frame and ready for ejection. In one ejecting arrangement, each frame incorporates supports 56, Figs. 1, 8, 9 on to which the uppermost carton is pulled by a bar 69 extending parallel with the disc face and mounted on an arm 66 pivoting about a fixed axis. The bar is engaged by a rising frame and moves from its rear to front side as the arm is pivoted upwards by movement of the frame. The bar thus moves the top carton on to the supports 56 before passing clear and dropping on to the following frame. The carton is picked up by part 64 of an exit shoot. In other arrangements flights on conveyer chains remove the cartons either parallel or transverse to the axis of rotation of the disc, Figs. 16, 17, 18 (not shown). In the former case, the frames hold one carton only which is removed by the conveyer as the open front of the frame passes over it. The device is adjustable for various carton sizes. Each frame may have a false end member adjustable along the side members for various carton lengths, Fig. 14 (not shown). The carton supports beneath the disc may be raisable for various carton heights, Figs. 4, 10 (not shown). A cam surface may guide each frame over part of its ascending path Fig. 13 (not shown).
Patent GB-1417025-A (GB)
Title: Carton bodies of cardboard or like material
IPC: B65D5/24
Filed: 1972-11-20
Abstract: 1417025 Cartons; packaging UNILEVER Ltd 20 Nov 1972 [20 Nov 1971] 53465/72 Headings B8P and B8C A carton body folded from a blank comprises adjacent upwardly and inwardly inclined side walls 2 connected by gussets 3, and locking flaps 4 folded down from the top edges of alternate side walls 2 and glued to the side walls to hold the gussets 3 against the side walls 2. Grip tabs in the form of extensions (6, 6a), Figs. 3, 4 (not shown) of the locking flaps or in the form of tabs 5, 5a folded from the top edges of the side walls not carrying locking flaps may be provided. The carton body may have four or eight side walls. A liner may line the base panel. A tearoff tab (9, Figs. 6, 7) defined by perforations (11, Figs. 6, 7) in a telescopically fitted lid may be spot glued to an area defined by perforations (13) Fig. 7 (not shown) on the carton body to form a tamper-proof seal. A carton body having four side walls may be combined with a shell to form a drawer and shell carton.
Patent GB-1307098-A (GB)
Title: Vinylidene chloride resin composition
IPC: C08G63/16
Filed: 1970-11-11
Abstract: 1307098 Plasticized resin KUREHA KAGAKU KOGYO KK 11 Nov 1970 [11 Nov 1969] 53581/70 Heading C3P  A copolymer of a major proportion of vinylidene chloride and a minor proportion of vinyl chloride is plasticized with a polyester formed from 1,3-butane diol, 1,4-butane diol and adipic acid having a molecular weight of 500- 3500. A mono-alcohol or mono-carboxylic acid may also be used in forming the polyester.
Patent GB-1408975-A (GB)
Title: Compositions for coating metals
IPC: C09D5/46
Filed: 1973-11-22
Abstract: 1408975 Coating compositions AQUITAINE TOTAL ORGANICO 22 Nov 1973 [22 Nov 1972] 54186/73 Heading C3R A powder composition comprises a polyamide or copolyamide and a reaction product of a phenol with m.p. 30-300‹ C. and a mono- or poly-isocyanate, or an isocyanurate, the phenol being released when the powder is melted by heating. There may be 0À1-10% wt., based on the polymer, of the product, expressed in terms of phenol content. Use.-Coating metals by electrostatic powder deposition, followed by heating.