baber/WOPTO huggingface dataset:
Patent GB-1483307-A (GB)
Title: Method of producing etch-resistant stencils and stencils produced thereby
IPC: G03F7/04
Filed: 1975-09-12
Abstract: 1483307 Etch resistant stencils RCA CORPORATION 12 Sept 1975 [12 Sept 1974] 37658/75 Heading G2C [Also in Division H1] An etch-resistant stencil is produced by coating a substrate with a light-sensitive resist comprising an alkali metal or ammonium caseinate, an alkali metal or ammonium dichromate sensitizer, and water, and having a pH in the range from 5.8 to 7.0, drying and imagewise exposing the coating developing to remove the unexposed portions and baking the remaining resist to render it etch resistant. The resist is preferably sodium caseinate and ammonium dichromate and may also include sodium borate. The substrate may be a regularcarbon or low-carbon cold-rolled steel sheet, coated on both sides with the resist. After the resist is baked the sheet may be etched to form a shadow mask for a colour television tube.
Patent GB-377430-A (GB)
Abstract: 377,430. Calculating- machines. JAMES, R. W., 11, Queen Victoria Street, London.-(Remington Typewriter Co. ; Ilion, New York, U.S.A.) July 24, 1931, No. 21244. [Class 106 (i).] In a combined typewriting and calculating machine having a detachable totalizer adjustably mounted on a carriage and adapted to be moved step by step into a computing zone, aligning means carried on the totalizer are adapted to engage successively a plurality of adjacent wheels and to be normally in engagement therewith, means operable only when the totalizer is in the computing zone being provided for shifting the aligning device out of engagement with the wheels. The totalizer is held in place on a bar 1 by a spring-controlled lever 10 having a tooth 15 engaging a rack 16 on the machine carriage. The totalizer is disengaged by pressing a fingerpiece 14 on the lever 10. Actuating mechanism. The depression of a key rocks a cam 72 through a link 68 and swings, about an axis 75, a universal rod 73 forming part of a frame 74. An arm 76 of the frame is connected by a link 77 to a cam 78 which causes the clockwise swinging of a dog 40 controlling the transfer and aligning mechanisms. Another arm 85 of the frame 74 rocks a cam 82 pivoted at 83 and effects the withdrawal of a pawl 81 from the teeth of the master wheel 67. Further movement of the cam 72 causes, through a pin-and-slot connection 69a, the rocking of a cam 71 the face 88 of which engages a pin 89 on a lever 90 secured to a shaft 91 carrying a sector 92 connected by gearing 93 to the master wheel 67. Transfer mechanism. The master wheel 67 is connected to the totalizer wheels 27 through pinions 29, 28. Each pinion 29 has secured to it transfer teeth 34 and a gapped locking disc 32 engaging a star wheel 31 and a Geneva pinion 30 which are secured together and are also integral with a pinion engaging the next higher pinion 29. There are two sets of pinions and wheels 31, 30, each set operating in alternate denominations, to reduce the space between the numeral wheels. Each denominational group of wheels 31, 30 is carried by an arm 35 or 36 pivoted at 8 or 7 respectively. Before actuation, the dog 40 swings the arm carrying the wheels of the denomination next below that engaged by the master wheel to unlock the counting train at that point. A projection 44 on the arm so moved rocks a bar 41 to lock all the remaining arms. Aligning mechanism. Pivoted to the bar 41 is a link 60 connected to a lever 57 pivoted to a lever 63, Fig. 3. This lever rocks abouts its end 65 and engages with and aligns the pinions 28. The rocking of the bar 41 moves the lever 63 into the inactive (dotted) position during the actuation of the counter. The lever 63 does not act on the two right-hand pinions 28. The bar 41 is controlled by a spring 48, Fig. 8, acting through a lever 52 having an aligning tooth 56 engaging one of the wheels 29. The wheels 29 are also aligned by a tooth 94 fixed to the machine frame at the right-hand side of the master wheel.
Patent GB-1025168-A (GB)
Title: Improvements relating to cathode assemblies for electric discharge tubes
IPC: H01J1/18
Filed: 1964-09-17
Abstract: 1,025,168. Thermionic cathodes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 17, 1964 [Sept. 20, 1963], No. 38008/64. Heading H1D. A cathode assembly comprises a plurality of parallel, thin wires wound over two tubular supports 1, 2, which are spaced apart by a distance piece 3 having rod-shaped ends which extend freely through apertures 12 provided in the tubes 1, 2. As shown, the assembly is supported in a discharge tube between a mica plate 13 and a tensioning device 11, the tube 1 being free to move and tilt slightly relative to tube 2, which ensures an even tensioning of emissive wires 5. The tubes 1, 2 may be of nickel, distance piece 3 being of ceramic or comprising two metal rods joined by a central ceramic or glass bead; or a metal distance piece may be used with metal tubes lined with insulating material or with ceramic tubes provided with one or more conductive strips joining groups of emissive wires in parallel, the groups then being joined in series. Also the distance piece may comprise short end rods joined by a metal plate acting as a shield between the two emissive surfaces and coated with gathering material.
Patent GB-324201-A (GB)
Title: Improvements in machines for copying documents and the like
IPC: B41L9/04
Filed: 1928-12-29
Abstract: 324,201. Gledhill, A. H. Dec. 29, 1928. Copying documents, drawings, and the like.- In a machine for copying documents, drawings, and the like of the kind wherein a sheet of paper to be printed is placed in a travelling feed carriage which lays it on to a hectograph composition, the carriage is rigidly connected at one side with a slidable frame and is supported at the other side by a rotary bearing running along a track on the machine frame. As shown, a platen roller e, Figs. 1 and 6, is mounted in a frame E pivoted at e<3> to a reciprocable carriage A fixed at one side by screws a<1> to a frame b slidably mounted on a rod B' and supported at the other side by a ban or roller bearing d, Fig. 5. running on a track f. The carriage A is actuated by a handle C pivoted thereto and held rigidly upright during the to and fro movement by a weighted lever c<2> engaging a. tooth c on the handle, the printing pressure of the roller e being provided solely by the pressure thereon of a coacting tension roller e'. At the end of the return movement, the lever c<2> is rocked out of engagement with the tooth c by an incline c<3> so that the handle C may be turned down to separate. the rollers e, e<1> and allow a sheet to be inserted between them. The handle C is connected to the frame E by a rod G and a pin-and-slot connection g<1>, the latter allowing the roller e to adjust itself to irregularities in the hectograph composition. The bearing d is mounted in a frame d<1> pivoted at d<2> and provided at its free end with a lug d<5> through which is passed an adjusting-screw d<6> screwed into the frame A, the frame d<1> being fixed in adjusted position by tightening a screw d<4> passing through a slot in the frame.
Patent GB-866298-A (GB)
Title: An improved separable electrical connection
IPC: H01R13/33
Filed: 1959-11-13
Abstract: 866,298. Blasting detonators. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. Nov. 13,1959 [Jan. 8, 1959], No. 38557/59. Class 9(1). [Also in Group XXXVI] In a detonator comprising an aluminium casing 18 fitting over the fusehead initiating composition applied to the conventional resistance wire (not shown), the bared ends of detonator wires 15, 16 for electrical connection to conductors 13, 14 are spirally disposed on the surface of an insulating plug 8 which fits into a complementary socket 9 (Group XXXVI) connected to the conductors 13, 14. The plug 8 is of insulating material, e.g. polythene or p.v.c., and is formed with flanges 19, 20 and 21 over which the casing 18 is crimped as shown at 22, 23 and 24.
Patent GB-853788-A (GB)
Title: Improvements in or relating to the control of the temperature of glass in glass-melting apparatus
Inventor: BAILEY SYDNEY BREEDON
IPC: C03B7/098
Filed: 1957-12-11
Abstract: 853,788. Electro glass furnaces. BRITISH HARTFORD FAIRMONT Ltd. Dec. 10, 1958 [Dec. 11, 1957], No. 38573/57. Class 39(3). [Also in Group XXXV] An apparatus for melting glass and delivering the molten glass comprises a refractory spout 1 of a forehearth having an opening 3 in its base below which is situated an orifice ring 4 supported in a metallic spout casing 2 hinged by a pin 15. A plunger 5 is reciprocated within a tube 6 to expel the molten glass through the orifice ring. A metallic electrode 7 supports the orifice ring by a plate 8. A heating current flows from the electrode 7 through the molten glass to an electrode 25 and is controlled by an automatic electric system (see Group XXXV), so as to maintain the spout temperature constant. For a plurality of orifice rings, the currents to the electrodes 25 are independently controlled and flow to a common electrode 7.
Patent GB-1101669-A (GB)
Title: Improvements in or relating to self-locking nuts
Inventor: JONES ERNEST
IPC: F16B39/284
Filed: 1965-09-09
Abstract: 1,101,669. Locknuts. FIRTH CLEVELAND FASTENING Ltd. 9 Sept., 1966 [9 Sept., 1965], No. 38585/65. Heading F2H. [Also in Division B3] A nut has a threaded bore which is distorted in the medial regions 9 by indentations 3 located at corners of the nut body. The indentations 3 may be in a plane normal to the nut axis, or follow the shape of the thread helix. They may be on opposite, or alternate corners, and may be staggered axially.
Patent GB-906826-A (GB)
Title: Improvements relating to hammers and like percussive tools
Inventor: JEFFERY WINSTON ERIC PAYTON
IPC: B25D1/02
Filed: 1959-11-16
Abstract: 906,826. Hammers. BIRMINGHAM BELTING CO. Ltd. Nov. 11, 1960 [Nov. 16, 1959], No. 38755/59. Class 61. Means for attaching a semi-rigid striking face of a hammer, tamper, &c. to the metal head of the tool comprises a stud formed of semi-rigid plastics material such as nylon, one end of the stud being mounted in an axial hole in the inner end of the striking face and the other end of the stud being mounted in an opening in the head of the tool. As shown, the stud 13 has external screw-threads which are engaged with corresponding internal threads in holes formed in the inner end of the striking face 12 and head 11. In modifications, the connection between the stud and striking face comprises a projection which allows the striking face to be snapped into engagement with the end of the stud. The projection may comprise an enlarged head in the form of a radially extending flange or a number of radially extending projections, or a flange provided intermediately of the ends of the stud. In another modification, the stud is secured in the hole is the striking face by adhesive or by moulding or casting the stud in the hole.
Patent GB-1338122-A (GB)
Title: Safety devices for vehicle passengers
IPC: G01S13/931
Filed: 1971-08-18
Abstract: 1338122 Radar TOYOTA JIDOSHA KOGYO KK 18 Aug 1971 [19 Aug 1970] 38844/71 Heading H4D A potential collision detecting system comprises a signal generator with an associated wave transmitter, a wave receiver, means for obtaining a Doppler signal from said generator signal and from reflected waves received by the receiver, and a frequency responsive circuit element to which said Doppler signal is fed. The output from the circuit element varies in magnitude with frequency, at least over a predetermined range, in a manner which is proportional to the relationship between the amplitude of the Doppler signal and the distance from the wave transmitter to the object from which the waves are reflected. When the circuit element output is within a predetermined range, a means which is provided develops an actuating signal for a safety device in the vehicle. As described, a combined transmitter-receiver aerial 3, Fig. 2, is coupled both to an R.F. generator 1 and to a mixer-detector 4 by means of a coupler 2. The mixer-detector has a second input, from the generator 1, and its output, of Doppler frequency, is coupled to a filter 6 through an amplifier 5. The output level against frequency characteristic of the filter 6 within a practical range of frequencies has a slope which is determined by the relationship between the amplitude of the Doppler signal and the distance to the reflecting object. Thus, if said amplitude is inversely proportional to said distance, the slope of the filter characteristic is made CdB/octave. The filter output is then proportional to v/D, i.e., to 1/T where v=relative velocity, D = distance, and T = time remaining before collision. Outside the practical range of frequencies, the filter characteristic is made steeply sloping, corresponding to cut-off at high and at low relative velocities. Output from the filter 6 is rectified in an A.C.-D.C. converter 7 and is assessed in a comparator 8, which produces an output voltage when its input voltage exceeds a predetermined value. Said comparator output is used for operating a safety device 9 for vehicle occupants, e.g., a valve 9B which admits gas from a generator 9A to an inflatable bag 9C.
Patent GB-344104-A (GB)
Title: Improvements in or relating to the dressing and delivery thereafter of sugar-beet and like roots
IPC: A01D17/10
Filed: 1929-12-18
Abstract: 344,104. Dressing and delivering beet &c. EDLING- TON, T. E., Phoenix Iron Works, Gainsborough, Lincolnshire. Dec. 18, 1929, No. 38856. [Class 6 (iii).] Apparatus for continuously dressing and delivering sugar-beet and like roots comprises a trimming block for supporting the roots while being topped and crowned manually and an elevating device co-operating with a reciprocating screen. Beet, after trimming on the block 5, is placed in a compartment 51 having a hinged flap 52, forming the lowest chamber of an elevator which comprises sides 3 mounted on a base 1, a pair of sprocket chains 9 passing over sprocket wheels 10 and carrying paddles 17 which move over a screen 7 supported by rollers 8 and reciprocated by crank mechanism. A power shaft 18 driven from an internal combustion engine 29 mounted on the frame 1 is coupled to a parallel shaft 22 which drives a lay spindle 30 connected to the elevator drive shafts by mitre wheels 34, 35 and to the reciprocating mechanism by mitre wheels 33, 36. The screen 7 is reciprocated by means of the crank shaft 37, connecting rod 39, and cross-bar 41 attached to the screen. The whole apparatus is carried on land wheels 4 and attached by a tiebar 16 to a cart into which the dressed and cleaned beet is delivered. In a modification, lateral instead of longitudinal reciprocating motion is imparted to the screen by a grooved cam and cam rod on the lay spindle. More than one reciprocating screen may be used and an electric or other motor substituted for the internal combustion engine, or the machine may be operated manually by attaching a crank handle.
Patent GB-1154160-A (GB)
Title: A device for the Movement of a Scale, particularly in Machine Tools
IPC: G05D3/12
Filed: 1966-08-31
Abstract: 1,154,160. Positioning system. OERLIKON-BUHRLE HOLDING A.G. 31 Aug., 1966 [2 Sept., 1965], No. 38910/66. Heading G4H. In a machine tool control system in which the required position of the tool is compared with the actual position, photo-cells sensing a scale 7 (Fig. 3) on the tool as it moves, the least significant digit of the required position controls via a stepping motor 28 (Fig. 2) the position of the photo-cells relative to a magnified image of the scale 54, 55. In the form shown the least significant digit is fed to a counter 68 (Fig. 4) together with a signal on one of two conductors 69, 71 representing the required direction of movement of the tool. A number of pulses equal to the value of the digit (for positive movement of the tool) or its complement (for negative movement of the tool) are fed to the motor 28 controlling the rotation of a stepped disc 30 so that the photo-cell assembly is moved by a spring contact 38 an amount equivalent to the least significant digit. The other digits of the required position are fed serially together with a signal representing the sign to a counter 61 (Fig. 3) and, as the machine tool moves, pulses from the photo-cell assembly count the counter 61 down to zero, the counter via a gate 65 controlling the motor 6 moving the tool. Since the first pulse from the photo-cell assembly represents a movement of the tool corresponding to the least significant digit means are provided to keep the gate 65 open for one pulse more than the count in counter 61. To prevent transitional errors when the contact 38 (Fig. 2) moves from the highest portion of the stepped disc 30 to the lowest portion, a pulse is then transmitted by a conductor 36 to the counter 61.
Patent GB-1206409-A (GB)
Title: Improvements in or relating to explosive-actuated tools for driving studs, nails or other anchoring members into hard materials
Inventor: WACKROW ROGER DAVID
IPC: B25C1/14
Filed: 1967-08-15
Abstract: 1,206,409. Cartridge actuated fastener driving tools. BIRMINGHAM SMALL ARMS CO. Ltd. 31 July, 1968 [15 Aug., 1967; 24 Aug., 1967], Nos. 37469/67 and 38957/67. Heading B4C. A fastener driving tool including a piston driven by gases generated when a cartridge is detonated by movement of a firing member relative to the tool body, comprises a hand grip slidably mounted on the tool body and a locking member slidably mounted on the outside of the body and adapted to form an obstruction preventing movement of the firing member relative to the body. The hand grip and locking member co-operate such that the locking member ceases to obstruct movement of the firing member when the hand grip is gripped and the tool is pressed against a fastener receiving material. In the embodiment of Fig. 2, the firing member is an end cap 6 and the cartridge is denoted upon impingement against the piston 3. The hand grip 9 and locking member 12 are urged by a spring 13 towards the end cap when the tool is inoperative, and the locking member engages an end wall of the end cap to prevent movement thereof relative to the body. The locking member which is slidable with the hand grip, comprises spring fingers 11 which engage a groove adjacent the end cap when the hand grip is in the inoperative position. In operation, the hand grip is moved against action of spring 13 when the tool is pushed against a workpiece and movement of the end cap can then take place. In the embodiment of Fig. 5 the locking member comprises a resilient ring 20, and movement of the end cap, when the hand grip is in its operative position, pushes the ring 20 towards the hand grip. When the tool is inoperative the ring seats in a groove adjacent the end cap, and movement of the end cap is prevented by wedging action of the ring with an annulus 19.
Patent GB-1088047-A (GB)
Title: Improved valve for inflatable craft
Inventor: KIDD ARCHIBALD WATSON
IPC: F16K15/20
Filed: 1963-10-03
Abstract: 1,088,047. Valves. AVON RUBBER CO. Ltd. Dec. 29, 1964 [Oct. 3, 1963], No. 38960/63. Heading F2V. A valve for an inflatable craft has an outer ring 2 of metal, plastic or ebonite for securing to the rubber craft and the ring may embody a separate or bonded-on flange 3 which in turn may be bonded to the craft. A body 5 is threaded into the ring 2 and is sealed thereto by an extension of the flange 3; body projections 10 serve to hold the rubber material away from the inside of the body 5 during deflation. The body 5 has a concave seat 11 with ports 13 therethrough and a rubber diaphragm 12 acts to control flow through the ports 13; a spring-loaded plunger 15 which holds the diaphragm 12 into the seat is provided with a metal strip 18, the ends of which lie under the diaphragm periphery and the diaphragm is unseated upon depressing the plunger 15 for deflation purposes. The body 5 has threads 23 for a sealing cap 24 or an inflation adapter; the cap 24 may be locked to the body 5 by a tie passing through holes 8, 26. Rapid and complete deflation is effected by removing the body 5 from the ring 2.
Patent GB-1070464-A (GB)
Title: Improvements relating to electrical components
IPC: H05B33/20
Filed: 1963-10-03
Abstract: A photo-conductive, piezo-electric, or electro-luminescent device consists of a thin sheet of insulating material in which are dispersed a plurality of active crystals arranged in such a way that each crystal projects above both surfaces of the sheet and has its ends embedded in conductive films provided on the two surfaces. The invention is illustrated with photo-conductive materials.  Lead sulphide and the sulphides, selenides, and sulpho-selenides of cadmium are suggested.  The insulating material which may be a thermoplastic or thermosetting material or a material which may be hardened by irradiation, should have a liquid form.  Examples are polycarbonates, polyvinylchloride, polyvinylidene chloride, polyethylene glycol terephthalate, nylon, glass, plastisols (vinyl resins dissolved in non-volatile plasticizers), and epoxy, melamineformaldehyde, urea-formaldehyde, and phenolfurfural resins. To make the body a dispersion of crystals in the liquid form of the binder is applied to a sheet of resilient material and is covered with a second resilient sheet and the assembly pressed to partially embed the crystals in the resilient sheets.  The insulating material is then hardened or allowed to solidify and the resilient sheets removed to leave a body to which electrodes are applied.  Suitable resilient sheets may be formed of silicone rubber, natural and synthetic soft rubbers, polyethylene, and polytetrafluoroethylene. Transparent or translucent electrodes may be formed of micro-fibre glass paper which has been impregnated with an organic solution of an indium or tin compound and then baked to make it conductive.  In one embodiment production starts with the dispersal of cadmium sulphide crystals in a plastisol, this mixture being pressed between polyethylene films &c.  In a second embodiment, cadmium sulphide is coated electrostatically on to paper coated with a tacky layer of a polystyrene solution-the process ensures that the crystals do not form aggregates and are aligned with their long axes perpendicular to the paper.  After evaporation of the solvent unhardened epoxy resin is put on and a polyethylene film applied.  Pressure is applied and the epoxy resin hardened.  The polyethylene film is removed mechanically and the paper/polystyrene dissolved off with toluene. Conducting glass paper is applied to each face of the body followed by layers of mica-mat saturated with epoxy resin.  The assembly is pressed and heated so that the resin penetrates the glass paper and hardens to produce a finished cell. The glass and mica on one side may be omitted in favour of an opaque conducting layer of relatively high sensitivity on top of which are applied successively an unspecified electroluminescent layer and a transparent conducting layer to form a picture intensifier.
Patent GB-824378-A (GB)
Title: Improvements in carrying cases or packs
Inventor: WRIGHT ROBERT HARCOURT
IPC: B65D5/46
Filed: 1956-12-24
Abstract: 824,378. Cartons ; wrappers. PORTLAND ADVERTISING SERVICE Ltd. Dec. 23, 1957 [Dec. 24, 1956], No. 39170/56. Classes 18 and 94(1). A carrier carton is formed from a blank of which the main part is rectangular, scored and bent to form a front a<SP>1</SP> and back a ; an extension of the latter is bent to form the top and flaps a<SP>2</SP> form the ends. A handle B is secured to the free end of the front a<SP>1</SP> and passes through a slot a<SP>3</SP>'in the top to close the carton. The end flaps a<SP>2</SP> have keyhole slots a<SP>4</SP> engaged by a knotted card B<SP>1</SP> (not shown) to secure them in the closed position.