baber/WOPTO huggingface dataset:
Patent GB-1175493-A (GB)
Title: Improvements in or relating to a Photo-Exposure Device
IPC: G06K15/22
Filed: 1968-04-17
Abstract: 1,175,493. Line exposure device. GERBER SCIENTIFIC INSTRUMENT CO. April 17, 1968 [Oct. 10, 1967], No. 18088/68. Heading G2A. A photo-exposure device for projecting a beam of light on to a photo-sensitive surface for the purpose of exposing a line as said beam is moved relative to said surface, includes a source of light, and means for directing light from said source on to said surface to form a light spot which light spot encloses a discrete area on said surface and has a distribution of light energy such that in a zone adjacent the outer edge of said area the illumination is substantially greater than in a zone adjacent the centre. As described in one embodiment the light spot takes the form of an annulus whose image 64 Fig. 5 sweeps the photo-sensitive material 62. As can be seen by comparison of the exposure curve 66 with the corresponding curve 58 Fig.4 for a circular spot, a more uniform exposure across the width of the line is achieved. The projection system may comprise a source 32 together with a concave mirror 34 and a condenser lens 36 illuminating uniformly an annular aperture 42. The aperture is selected from a number of them of different dimensions arranged around the perimeter of a rotatable disc 38. The aperture is imaged on to the photo-sensitive surface by the lens system 45.
Patent GB-222600-A (GB)
Title: Improvements in and connected with refrigerators
IPC: F25D3/04
Filed: 1923-07-16
Abstract: 222,600. Conway, T. July 16, 1923. Refrigerators, domestic and like. - An ice and brine tank is removably supported at one end of a domestic refrigerator upon a set of bars 3 separately removable by endlong movement in holes 4 in the sides of the refrigerator and in supporting blocks 7. The upper end of the tank is fitted with anglebars 10 screwed to the top of the refrigerator. Draining taps are mounted on pipes 11, 12 passing through the wall of the refrigerator and secured by detachable unions 13, 14. Condensation is received in a tray 17 having tubes 19 leading through the base to a sliding drawer 20. The door and walls may have advertisement panels 26 removably secured by fillets 27. The tank is filled through a hopper 15 and is fitted with a perforated shelf 2 upon which the ice &c. rests.
Patent GB-636909-A (GB)
Title: Improvements in or relating to voltage regulators
IPC: G05F1/52
Filed: 1947-07-11
Abstract: 636,909. Automatic voltage control systems; rectifying. WESTERN ELECTRIC CO., Inc. July 11, 1947, No. 18480. Convention date, Nov. 25, 1942. [Classes 38 (ii) and 38 (iv)] [Also in Group XXXVII]. The output of a pair of grid-controlled rectifiers is maintained constant by (a) a saturable choke in series with the output, (b) a series resistor and a shunt connected regulating valve; (c) grid control of the rectifiers, the grid voltage being obtained from an amplifying valve and passed via a low-pass filter. The output of a full wave connected pair of gas-filled rectifiers 22, 23 is passed to a smoothing circuit including a choke 26, the inductance of which varies considerably with load current; and thence via a resistor 29 to the load 11. A bridge 60 connected across the load includes in one arm a cold cathode tube 67 which has constant voltage drop so that a variation, e.g. an increase, in load voltage unbalances the bridge and increases the negative bias on the grid of valve 61 which has its anode/cathode circuit supplied by an auxiliary rectifier 74. Valve 62, shunted across the D.C. supply, has its grid coupled to the resistor 77 in the anode/cathode circuit of valve 61, and as this grid voltage rises, so the anode current rises, increasing the voltage drop across resistor 29 to restore the load voltage. In addition, the anode voltage of valve 62 is applied via switch contacts 45, 56 and low-pass filter 84, 43 to bias the grids of rectifiers 22, 23 so as to correct any sustained changes in load condition. For about 15 seconds after first switching on, a negative bias derived from rectifier 44 is applied to the grids of rectifiers 22, 23 via contacts 45, 46 of a delayed switching device (see Group XXXVII).
Patent GB-117392-A (GB)
Title: An Improved Prongless Buckle or Fastening Device.
Inventor: FRANCE ARTHUR GRAHAM
IPC: A44B11/04
Filed: 1917-12-14
Abstract: 117,392. France, A. G. Dec. 14, 1917 Slides, belt and like. -Relates to one-piece prongless buckles and consists in a buckle comprising a frame a which is prominently arched in the centre where it is provided with a bar or pair of bars c having a space on each side, which space on the outer side is bordered by an internal edge d. The bars c may be set at an angle to the frame as shown in Fig. 6, and the outer edges of the frame may be turned inwardly as shown at e. The buckle may be threaded either as shown in Fig. 6 or as indicated by the dotted lines in Fig. 8.
Patent GB-1537577-A (GB)
Title: Fork heads
IPC: B21D53/60
Filed: 1975-05-03
Abstract: 1537577 Forks JENKS & CATTELL (EDGE TOOLS) Ltd 27 April 1976 [3 May 1975] 18629/75 Heading A1B [Also in Division B3] A fork head made from a sheet of carbon steel (see Division B3) has a shoulder 8 and tines 7 of channel-shaped transverse crosssection and a tang of similar cross-section or a socket of cylindrical form for reception of a handle. The free ends of the tines may be slightly pointed.
Patent GB-743509-A (GB)
Title: Improvements in or relating to pigment dyestuffs
IPC: C09B5/40
Filed: 1953-07-06
Abstract: The invention comprises coeramidonine pigment dyestuffs of the formula:- <FORM:0743509/IV(c)/1> wherein one or more of the remaining a -positions of the anthraquinone residue may be substituted by N-(benz-11-benzanthronyl)-amino groups, those in 4- or 5-position forming a coeramidonine ring with the oxygen atom in position 9, and wherein the benzanthrone portions of the molecule may be substituted by one or more halogen atoms and the anthraquinone portions of the molecule may have further substituents, except acylamino groups, and/or may have a thiazole ring condensed thereon.  They are made by treating a 1-N-(benz-11-benzanthronyl) - aminoanthraquinone free from acylamino groups with a metal halide, a melt thereof in an alkali metal salt, or with concentrated sulphuric acid at a temperature of from room temperature up to 220 DEG C., and acid-pasting or grinding the reaction product.  The products are used for dyeing paper, dyeing viscose during spinning brown or orange shades, and printing textiles.  In examples the following are condensed with sulphuric acid, acid-pasted, ground, and worked up into pastes or powders, sometimes with a dispersing agent:-(1) 1-N-(benz-11-benzanthronyl)-aminoanthraquinone or its 6, 7-dichlor-, 5-amino- or 2-methyl derivatives; (2) 1.8 or 1.5- or a mixture of 1.5- and 1.8-di-N.N-(benz-11-benzanthronyl)-amino - anthraquinone; (3) 1-N-(61-bromo-benz-11-benzanthronyl) -aminoanthraquinone; (4) 5-N-(benz-11-benzanthronyl) - amino-1.9-isothiazolanthrone.  Also in examples (5) 1-N-(benz-11-benzanthronyl) aminoanthraquinone is condensed with aluminium chloride in nitrobenzene.  Alternative starting materials are listed.
Patent GB-1185173-A (GB)
Title: Application Sticks and Their Method of Manufacture
Inventor: LEIGH STEVEN
IPC: A61K8/02
Filed: 1967-04-24
Abstract: 1,185,173. Cosmetic sticks. RICHARDSONMERRELL Ltd. 22 July, 1968 [24 April, 1967], No. 18710/67. Heading A5B. A pharmaceutical or toiletry application stick has an outer portion and a core portion made from different skin coating compositions wherein one portion is formed from a wax composition and the other portion comprises at least one active ingredient which is insoluble in the wax composition. The outer portion may contain a fragrant ingredient such as menthol or methyl salicylate and the stick may also contain an antiseptic such as hexachlorophene, an oil-soluble vitamin (e.g. vitamin A or D) or a healing agent such as allantoin. An antibacterial substance or a moisturiser such as propylene glycol may also be present.
Patent GB-1418483-A (GB)
Title: Methods of securing two components by means of an adhesive
IPC: F16B11/00
Filed: 1972-04-22
Abstract: 1418483 Jointing LUCAS INDUSTRIES Ltd 26 June 1973 [22 April 1972] 18801/72 Heading B3V [Also in Division B4]  A method of adhesively securing together two components 1, 3 comprises the steps of locating the components with adhesive therebetween within a chamber having at least one flexible wall 7 with one of the components resting against an abutment surface, and removing air from the chamber so as to cause the flexible wall to deform inwardly and thereby directly or indirectly hold the two components together until the adhesive has set. The components together with the chamber may be located within an oven to cure the adhesive, the pressure on the joint during curing being controlled by controlling the air pressure in the chamber.
Patent GB-274852-A (GB)
IPC: G01K1/14
Filed: 1927-07-15
Abstract: 274,852. British Thomson-Houston Co., Ltd., (Assignees of Treanor, E. D.). July 23, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Transformers.-A thermally-operated indicating device for encased transformers comprises means responsive to temperature changes in the cooling medium surrounding the apparatus, means responsive to temperature changes in the surrounding air and indicating means responsive to the combined effect of the two sensitive devices so as to indicate the conditions as regards load &c. of the apparatus regardless of changes in the air temperature.
Patent GB-1498683-A (GB)
Title: Compressed air brake systems
IPC: B60T13/36
Filed: 1975-05-06
Abstract: 1498683 Air braking systems; valves ROBERT BOSCH GmbH 6 May 1975 [5 Nov 1974] 18853/75 Headings F2F and F2V A test valve 22 in a compressed air braking system tests the spring-applied parking brakes 18, 19 of a tractor vehicle by releasing the trailer brakes only when the parking brakes are applied, the test valve being locked from movement when the parking brakes are pressurized and thus released. The braking system comprises a compressor 1 supplying through a pressure regulator 2 both reservoirs 5, 6 connectable by a brake valve 10 to respective actuators 11, 12 and a trailer brake control valve 15; a trailer air supply line 9 and through a check value 8 a reservoir 7 connected to the test valve line 25, the parking brake valve 16 and a relay valve 17 controlled from the valve 16 through a line 20 connected also by a line 21 to the test valve 22. The control valve 15 is responsive to increase in pressure in one or both of lines 13, 14 or a decrease in pressure in the line 23 from the test value to actuate the trailer brakes. The two position three-chamber test valve 22 includes a spool 32 movable axially by rotation of a member 31 having cam surfaces 35 engageable with a pin 29 and splined to a rotary knob 26 with slots to accommodate the pin 29. In the position shown and with the valve 16 in its parking brake release condition, the line 21 and chamber 44 are pressurized, the valve is locked by the pressure acting on a piston head 47 of the valve in addition to the loading of a spring 36 and the pressure in the lower chamber 37 which is connected to the line 25 and hence the reservoir 7. When the tractor parking brake is applied by releasing the pressure in the lines 20 and 21 and the chamber 44 the spool may be depressed by rotating the knob 26. when the trailer control valve line 23 is pressurized from the chamber 37 and the trailer brakes released.
Patent GB-1537274-A (GB)
Title: Spray gun
IPC: B05B7/08
Filed: 1975-05-06
Abstract: 1537274 Spray producers HUMBROL Ltd 15 Jan 1976 [6 May 1975] 18861/75 Heading B2F In a spray gun comprising a spray nozzle 14 fed by a tube 16 depending therefrom into a liquid reservoir 10, and a gas jet nozzle 24 adjacent the spray nozzle to cause a stream of air past the spray nozzle so that liquid is drawn from the reservoir into the air stream wherein it is entrained as minute droplets, the air supply is controlled by a valve comprising a valve closure member having an O-ring 40 movable towards and away from a valve seat 30 and operated by a pivotally mounted level 56, the extent of depression of the lever and thus of the opening of the valve being limited by a rotatable cam ring 64. As shown in Fig. 3, the cam ring has a raised cam surface 66 which provides a stop for the forward end of the lever 56. Either or both of the nozzles 14 and 24 may be axially adjustable; the axial displacement of the nozzle 24 may be independent of or associated with the rotation of the cam ring.
Patent GB-1267657-A (GB)
Title: Improvements in or relating to apparatus for transferring goods from a pallet to a platen
Inventor: WILD FRANK
IPC: B65G1/00
Filed: 1968-04-22
Abstract: 1,267,657. Unloading and loading pallets. SIMON HANDLING ENGS. Ltd. 16 April, 1969 [22 April, 1968], No. 18884/68. Heading B8C. A method of transferring a load G from a pallet 1 to a platen 2, via a rotatable receptacle 6 which has pressure pads on reciprocable walls, comprises simultaneously passing the loaded pallet 1 and the uppermost platen 2 of a magazine 19 to roller feed tables 15, 16, respectively, and upon which they are clamped. The roller feed tables 15, 16 are clamped to a base-plate 17 which is then slid into the receptacle 6 to close its open bottom 9. The base-plate 17 and roller feed tables 15, 16 are clamped relative to the receptacle whereupon the walls are moved in by a series of interconnected levers and pistons. The receptacle 6 is then rotated to transfer the weight of the goods to a back wall 7 whereupon the base-plate 17 &c. are undamped from the receptacle and moved away slightly so that upon sliding it downwardly the platen 2 now takes up the previous position of the pallet 1. The base-plate 17 &c. are reclamped and the receptacle 6 rotated anticlockwise. The baseplate 17 &c. are undamped again and moved out of the receptacle 6 so that the loaded platen now occupies the original position of the roller feed table 15 and is thereafter transferred to a conveyer system 5 via conveyer system 4. Alternatively the loaded pallet is superimposed on a platen which is clamped to a flat carriage (50), Fig. 2 (not shown), upon a roller feed table (51). The roller feed table (51) &c. are moved into the receptacle, clamped thereto and rotated. After unclamping, the table &c. are moved outwardly slightly to allow the pallet to fall free. Upon repositioning the platen, and anticlockwise rotation of the receptacle, the load becomes transferred to the platen. The receptacle 6 comprises side walls 8, a rear wall 7, an open bottom 9 and removable top and front walls 10, 11. The walls 7, 8, 10, 11 are reciprocated between open and closed positions by means of interconnecting levers and pistons, Figs. 3 and 4 (not shown). The receptacle rotates on stub axles 13 about a horizontal axis and may be provided with movable guide rails at its open bottom.
Patent GB-193343-A (GB)
Title: Improvements in or relating to internal-combustion engine manifold heaters
IPC: F02N99/00
Filed: 1922-07-10
Abstract: 193,343. Shields, T., (Bridgford, A. G.). July 10, 1922. Vaporizers, external. -The intake manifold is heated at starting by a burner which consumes some of the engine fuel. A part of the manifold is enclosed by a casing 12 having at its lower end a burner and at its upper end vent openings 15 and a safety screen 16 in a removable cap 14. The burner is enclosed in a deflector 18 which concentrates the flame, air from the inlet 17 passing through holes 19 in the bottom of the deflector and between the deflector and the walls of the casing. An aperture in one end of the casing is closed by a plate 20 which carries the deflector 18, an ignition plug 38 and one end of a burner tube 22, the other end of which is secured by a flanged nut 26 and is connected to the fuel supply pipe 27. The tube is secured to the plate 20 by a plug 23 through which passes a wire 36 for conveying electric current to a vaporizing coil 34 which is earthed at the screw 35. A portion 28 of the fuel pipe is enclosed between two valves 29, 30 the levers 31 of which are so connected by a rod 32 that one valve closes as the other opens for the purpose of supplying a measured charge of fuel to the burner. The fuel is vaporized by the coil 34 and the vapour is ignited by a spark passing between the terminal 39 and a projection 41 on the tube 22, the latter being cut away at 40 for the passage of vapour and provided in its lower wall with a basin-like depression 33 to ensure that all the fuel is consumed. On the closed end of the casing 12', three contacts 37, 47, 43 are provided, of which 37 is connected to the coil 34, 47 through a signal light 46 to a thermal switch 44, and 43 to the primary of a coil the secondary 57 of which supplies current to the sparking plug 38. As the rod 32 is actuated to supply fuel, the contacts are closed by conducting blocks 48, 49, 50 mounted on an insulating blosk 51 and connected to a battery 52 and the burner is lighted. When the desired temperature within the casing is reached, the switch 44 closes the circuit 45 and causes the lamp 46 to glow.
Patent GB-573607-A (GB)
Title: Improvements connected with rear carriers for cycles
IPC: B62J1/16
Filed: 1943-11-13
Abstract: 573,607. Child's seat' for bicycles. LAWSON, E. A. Nov. 13, 1943, No. 18934. [Class 136 (i)] A rear luggage carrier of the type having its front portion 5 secured to the cycle frame and the rear portion supported by oblique stays 20 is adapted for use as a child's seat by a backrest 10c connected to the horizontal carrier surface 2 by hinges which allow the back-rest to fold forwardly on to the surface, but prevent any rearward swing of the back-rest beyond the opened-out position. The luggage carrier 2 is supported by a clip 9 and the stays 20, and the back-rest 10c is extended beyond the pivot 10e to abut a stop 11 when in the open position, a hinged catch 12 retaining it in this position. Arm-rests 13a, 13c are pivoted to the back-rest and fold with it, and adjustable foot-rests 14 are supported by a clamp 17 adjustable on slotted links 15 pivoted to the luggage carrier' and slotted links 16 pivoted to the stays 20. The carrier is bent up of strip metal with crossbars to form the seat and is narrowed at 6 to provide room for the child's legs.
Patent GB-1217098-A (GB)
Title: Improvements in or relating to escalators
Inventor: HERKER KURT
IPC: B66B31/00
Filed: 1969-04-14
Abstract: 1,217,098. Escalators. K. HERKER. 14 April, 1969 [19 April, 1968], No. 18936/69. Heading B8A. In an escalator the treads of the steps are horizontal at the upper and lower ends of the escalator (Fig. 4), and in the intermediate ascending or descending portion of the escalator (Fig. 3) are inclined in the opposite sense to the inclination of the intermediate portion. This result is achieved by suitably positioning the rails (not shown) on which the steps run, or by having rollers of different sizes at the front and back edges of the steps.
Patent GB-569285-A (GB)
Title: Piezo-electric device
IPC: H01L41/18
Filed: 1943-11-15
Abstract: 569,285. Piezo-electric crystals. PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING AKT.-GES. Nov. 15, 1943, No. 19017. Convention date, Nov. 22, 1942. [Class 40 (v)] A piezo-electric device is characterised in that it comprises a piezo-electric crystal formed of a substance which belongs to the group of salts which is isomorphous with primary potassium phosphate (KH2PO4). Examples of isomorphous salts are potassium arsenate and the phosphate and arsenate of ammonium. Primary potassium deutero phosphate (KD 2PO 4) is also mentioned. The crystal may be used in oscillators, filters, relays, acoustic translating devices, oscillographs and piezometers.
Patent GB-223963-A (GB)
Title: Improvements in or relating to gearing for steering mechanically propelled vehicles and for other purposes
IPC: B62D3/10
Filed: 1923-07-25
Abstract: 223,963. Bishop, R. July 25, 1923. Non-reactive steering-mechanism.-Relates to cam steering mechanism of the kind in which a cam 3 of helical or worm type fixed on an operating shaft 2 is engaged by a pin or roller 4 mounted on an arm 6 movable in a plane parallel to the longitudinal axis of the cam about a rocker shaft 7 through which the movements are transmitted, the axes of the roller 4 and the arm 6 being at right angles. According to the invention, the arrangement embodies a cam produced (1) by subjecting the, cam blank to the action of a fixed tool whose operative edge or face is at the same angle as the face of the roller, the cam blank being rotated about its axis and at the same time moved in the arc of a circle whose radius is equal to the length of the roller carrying arm between the centre of the rocker shaft and the axis of the roller, the movement being effected without any change in direction of the longitu. dinal axis of the cam blank or, alternately, (2) by rotating the cam blank and moving the tool in relation thereto in the arc of a circle of a radius as in (1). The tool may be either a milling cutter or a grinding wheel. The depth of the cam groove so formed. varies enabling it to cooperate with the roller at all times without lost motion. The pitch of the cam also varies from end to end. The roller arm 6 is so arranged in relation to the cam that, in its mid position, Fig. 1, the roller 4 lies beyond the longitudinal axis of the cam and crosses this axis when moved to either end position. The shaft 2 may be mounted in a steering pillar 1 and carry a steering wheel at its upper end. Specification 223,655, [Class 83 (iii), Metals, Cutting], is referred to.
Patent GB-320060-A (GB)
Title: Improvements in or connected with sheet metal boxes or cans
IPC: B21D51/38
Filed: 1928-07-02
Abstract: 320,060. Gee, L. F., and Adams, F. E. July 2, 1928. Rims of openings. - Lever lid cans or boxes are provided with neck rings 3 inclined upwardly from the seamed joint with the body to the edge of the central opening.
Patent GB-673466-A (GB)
Title: Improvements in or relating to the control of electric motor-driven mechanism
IPC: F16H63/30
Filed: 1948-07-16
Abstract: 673,466. Control of D.C. motors. EATON AXLES, Ltd. July 16, 1948. [Aug. 1, 1947] No. 19132/48. Addition to 655,636. Class 38 (iii). [Also in Group XXIV] The system for controlling the operational movement of a shifting mechanism as claimed in the parent Specification, has the switch common to the circuits of both motor field windings provided with an additional contact or contacts corresponding to intermediate positions of the nut member on the screw, said additional contact or contacts being respectively connected with a member or members in make- and-break relationship with a contact of the series switch of the energized field of the motor, the nut member being effective to break the circuit on reaching a predetermined position. When a control lever 28 is ina neutral position, in which it engages contact 84, no current is supplied from battery 26 to motor 12. Movement of the arm 28 to engage contact 60 energises the motor for forward operation, current being supplied through limit switch-arm 40 and field winding 22. The motor drives a screw-and-nut mechanism, the nut carrying a pin which engages a notch 86 to pivot a contact lever 64 and engage contacts 70, 74. At the limit of its forward movement the nut opens switch 40-52, the load being shiftable from this extreme position to either the other limit position or the neutral position by engaging the arm 28 with contact 62 or contact 84, the field winding 20 being energizable for reverse rotation. Specification 616,533, [Group XXIV], also is referred to.
Patent GB-329875-A (GB)
Title: Improvements in or relating to covers for dust-bins and the like
IPC: B65F1/14
Filed: 1929-06-24
Abstract: 329,875. Birtwisle, J. H. June 24, 1929. No Patent granted (Sealing fee not paid). Refuse - bins. - A tapered or other cover 6 is adapted to enclose a dustbin and its lid, and to xest on the ground or stand supporting the bin. The bin may have inset handles and the cover may be collapsable.