baber/WOPTO huggingface dataset:
Patent GB-101541-A (GB)
Title: Improvements in and relating to Electrical Wave Transmission.
Inventor: PUPIN MICHAEL IDVORSKY
IPC: H04B1/16
Filed: 1916-09-13
Abstract: 101,541. Pupin, M. I., and Armstrong, E. H. Sept. 17, 1915, [Convention date]. Wireless telegraphy.-The receiver is screened from atmospherics by placing a resistance in the aerial; while, to overcome the effect of this resistance on the signalling-currents, an electromotive force, controlled by the signalling-currents, is introduced in the aerial circuit. In the arrangement shown in Fig. 3, the aerial 19, 5 contains an inductance 16, resistance 17, capacity 18, and two transformer windings 3, 4. The secondary winding 7 of the transformer 3, 7 is placed in a resonant circuit 7, 8 containing a regulating-resistance 6 and connected through a battery 24 to the grid 14 of a vacuum device 1. The heated electrode 13 and the cold electrode 9 of the device 1 are placed in a circuit containing a source of current 10, an inductance 15, capacity 11, and the primary winding 12 of the transformer 4, 12. When atmospherics tend to affect the receiver, they are damped out by the resistance of the aerial; but when signalling-currents are generated in the aerial, an additional electromotive force is introduced into the aerial by the action of the device 1 and the transformer 4, 12. In a modification, the windings 3, 4 are placed in parallel with a resistance and in series with a capacity; while, in another modification, two vacuum devices and two additional sources of energy are employed. In the modification shown in Fig. 9, the grid 14 and hot electrode 13 of the valve are connected across a condenser 18, which is shunted by a resistance 26, and the circuit 13, 9, 15, 10 connected to the aerial through transformers 7, 7<1> and 16, 27 and a second vacuum device. Specification 101,540 is referred to.
Patent GB-566171-A (GB)
Title: Improvements in or relating to devices for supporting ammunition belts, for example during the feeding movement to an automatic gun
IPC: F41A9/57
Filed: 1942-09-15
Abstract: 566,171. Ammunition belt guides. DEARSLEY, G., and MOLINS MACHINE CO., Ltd. Sept. 15, 1942, No. 13004. [Class 92 (ii)] An ammunition belt is guided and supported by a flexible shoot 6, Fig. 3, which is supported by a substantially rigid member, such as a rod 9 extending along the shoot. In the construction shown, the belt passes through the hollow trunnion 2 of a gun mounted in the turret of a vehicle, and the rod 9 is connected at one end to the trunnion and at the other end to the ammunition locker 5. The shoot extends along the complete length of the support and comprises a number of channel-section sheet metal members 13, Figs. 5 and 8, shaped as shown to support and guide the cartridges C. Each member is holed at 14 to receive the rod 9, and the two webs at one end of each member are formed respectively with a slot 17 and a lug 18. When the members are in position on the rod, the lug of one member enters the slot of an adjacent member, thus limiting the angular displacement of each member with respect to those on either side of it. The end members are similarly limited by abutments provided on the trunnion 2 and ammunition box 5. The base of the latter may be arranged to lie in a plane parallel to the mean altitude of the gun. In a modification, the shoot is constructed in one piece from flexible material, such as thin steel having bent-over sides to form a channel, the sides being slotted at intervals along its length.
Patent GB-498738-A (GB)
Title: Improvements relating to electrical transmission systems
Filed: 1937-05-07
Abstract: 498,738. Electric signalling systems. SPERRY GYROSCOPE CO., Ltd., HARDING, W. G., and NISBET, R. H. May 7, 1937, No. 13124. [Class 40 (i)] In an electrical signal transmission system, the signals from a step-by-step transmitter are amplified by means of gas discharge tubes. In Fig. 1, 1, 2, and 3 are gas discharge tubes, the cathodes of which are connected to a tapping point 16 on a resistance bridged across the positive and negative lines 28 and 18 respectively of the D.C. supply. The grids of the discharge tubes are connected to tapping points 19, 20, and 21 on resistances 22, 23 and 24 respectively. The resistances are connected across the D.C. supply through contacts A, B, C so that when each contact is open, the grid of the corresponding tube is negative with respect to the cathode. When a contact, say A, is closed, the grid of tube 1 becomes more positive and the tube becomes conductive, sending a current through the corresponding winding A of the receiver. The secondary of a transformer 8 is connected to the anodes and cathodes of the tubes, to provide the necessary anode potential. The tubes act as rectifiers. The tubes may be arranged in pairs so as to give full wave rectification. The contacts A, B, C may be operated in the transmitter by the follow-up element of a gyro-compass in a ship. Fig. 3 is a circuit diagram of a three-line step-by-step system in which 30 is a receiver and A1 A2, B1 B2, C1 C2 each represent a gas discharge tube arranged to drive current in the direction shown when excited by the transmitter. Fig. 4 shows one way of arranging the discharge tubes A1 and A2. Anode potential for both tubes is supplied by the windings 41, 42 of a transformer 40, the join of the two windings being connected to the point 33 (see also Fig. 3). The point 34 is connected directly to the anode of A2 and to the cathode of A1. A transformer 38 has a cathode winding 37 which is tapped and connected to the centretap of a winding 44, 45. Winding 45 is connected to the grid of A, through an impedance 46 so as to apply a grid voltage in opposite phase to the anode voltage and to render the tube nonconductive. When the transmitter contact 47 is closed, however, the grid is directly connected to the winding 44 applying a voltage in phase with the anode voltage and rendering the tube conductive. The tube A2 is similarly operated. In a modification, the contact for each valve is in the primary circuit of the associated transformer. The pairs of tubes A1 A2, B1 B2, and C1 C2 may be arranged in star instead of delta formation.
Patent GB-528290-A (GB)
Title: Improvements in or relating to the optical projection of pictures with a relief effect
IPC: G03B21/60
Filed: 1939-05-03
Abstract: 528,290. Projected images having a relief effect. MENDEZ, C. F. May 3, 1939, No. 13210. [Class 97 (i)] The image 4 projected on to a screen 3, viewed by reflection in a cylindrical mirror 5 to produce a relief effect, is relatively elongated in a vertical direction so that the horizontal elongation produced by the mirror restores the correct proportions to the image 6 perceived by the eyes E. The screen image 4 may be obtained from a normal film image 1 by means of a cylindrical projection lens system 2, or the film may carry elongated images, either produced during printing from normal images, or by the use of a cylindrical lens in the camera. When the elongated images are produced in the camera, the whole image area of each film frame may be used, so as to increase the horizontal field of view.
Patent GB-421322-A (GB)
Title: Improvements relating to heel pads and the like for use inside footwear
IPC: A43B21/32
Filed: 1934-05-02
Abstract: 421,322. Inside heel cushions for boots and shoes. McLUSKIE, J., 447, Kilmarnock Road, Newlands, Glasgow. May 2, 1934, No. 13213. [Class 17 (ii)] An inside heel cushion comprises a base 1 of leather or other material to the underside of which is attached, for example by adhesive, the upper wall 2 of a hollow pneumatic rubber member 3 of dome shape. One or more air orifices 4 are provided on the underside of the member 3. The hollow member 3 is formed of rubber or like material in a single moulding operation in a cupped mould with a movable core adapted to be withdrawn through one of the orifices 4.
Patent GB-132598-A (GB)
IPC: F24H1/20
Abstract: 132,598. Creasey, H. H., Becket, W. H., and Parkinson Stove Co. Sept. 16, 1918. Heating water; internally-fired boilers.-A small quantity of boiling water from the boiler c, or a larger quantity of hot water from the reservoir a, can be drawn at the outlet pipe n at will, according as the valve t is shut or open. The inlet q to the boiler c and the feed p to the reservoir a are arranged so as to supply, in each case, below the level of the drawoff to avoid the admixture of colder water with the water drawn. The valve t may be of any form and may be external to the cylinder, and the device may be fitted with an expansion pipe so operated under pressure. In the modified form shown in Fig. 7, a mantle 12 surrounds the boiler, discharging the products of combustion direct to the flue h without contact with the bottom of the reservoir. In this form, too, the draw-off pipe terminates in a hand-hole 11 for cleaning purposes.
Patent GB-525805-A (GB)
Title: Brackets for supporting electric lamps and the like
IPC: F21V21/26
Filed: 1939-05-03
Abstract: 525,805. Lamp brackets. BREEDEN, F. J. May 3, 1939, No. 13273. [Class 75 (iii)] Adjacent legs 1, 2 of a lamp bracket are connected by a hinge formed by a distance piece 11 held between the pairs of lugs 4, 5 and 6, 7 at the ends of the legs by bolt and nut 8, 9. Cup-shaped members 11, 12 receive and transmit the cable and each rotates or is still with its appropriate leg.
Patent GB-696159-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/04
Filed: 1951-06-05
Abstract: 696,159. Optical objectives. COOK, G. H., and TAYLOR, TAYLOR, & HOBSON, Ltd. May 28, 1952 [June 5, 1951], No. 13312/51. Class 97 (i). A corrected objective of the inverted telephoto type comprises a convergent rear member consisting of four components of which the outer two are convergent and the inner two simple and divergent, and a divergent front member located in front of the front focal point of the rear member and including at least one collective surface concave to the front and at least one dispersive surface convex thereto, the two outer of the three air separations in the rear member each having the shape of a convergent meniscus lens convex towards the central air separation of the rear member, the axial length of such central separation being less than 0.25 f 2 , where f 2  is the equivalent focal length of the rear member. Numerical data are given for two examples of the lens shown.
Patent GB-1073184-A (GB)
Title: Laminated structures and a method for their manufacture
Inventor: SANDERS ARTHUR JOSEPH
IPC: A47C23/15
Filed: 1964-03-31
Abstract: 1,073,184. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 19, 1965 [March 31, 1964], No. 13328/64. Heading B5N. A process for making a laminated fabric comprising a filler ply and, on at least one side of it, a ply of fabric, with one or more of the plies containing material exhibiting a dielectric loss, comprises placing the plies in contact and dielectrically welding the resultant structure so that the whole is united through direct bonding between plies as a result of the heat and pressure. Dielectric loss is defined as being # tan 8 where # is the dielectric constant of the material and tan 8 is the power factor in the fibres. Specified fabric plies are woven or knitted fabrics of nylon alone or in admixture with viscose, linen or cotton. Specified filler plies are in the form of a fibrous web, a fibrous non-woven structure or a plastic foam, suitable fibres being of nylon and suitable foams being polyvinyl and polyurethane foams. The welding may be in the form of seams or overall.
Patent GB-215582-A (GB)
Title: Improvements in or relating to wheels for vehicles
IPC: B60B3/08
Filed: 1923-05-18
Abstract: 215,582. Dunlop Rubber Co., Ltd., and Randles, J. T. T. May 18, 1923. Disc wheels, designed for use with giant pneumatic tyres and interchangeable with wheels having solid or pneumatic tyres, comprise two discs 4 which are shaped and disposed so that they are parallel at the central area, divergent in the intermediate area and provided with outwardly extending peripheral flanges 5 to form a seating for the rim which is secured by any suitable means such as rivets 2. At the centre, the discs may be in contact or separated by a washer .or distance-piece 8, and are secured to the hub flange by bolts 13 and nuts 12. In a modification, the discs and rim may be formed in one piece.
Patent GB-482485-A (GB)
Title: Improvements in centrifugal fans
IPC: F04D29/30
Filed: 1937-05-11
Abstract: 482,485. Centrifugal fans. HAGEN, H. F. May 11, 1937, No. 13398. [Class 110 (i)] A helico-centrifugal fan for high speed operation has curved blades 11 mounted on a back plate 18, the inlet portion of each blade from C to H having substantially constant depth while the delivery portion from H upwards has a gradually decreasing depth. The blade is formed as a helix with pitch increasing towards the back plate, and has the surface of a conoid, with all its elements extending in radial lines. The hub 22 increases rapidly in diameter as it approaches the back plate 18 and its curved surface 25 co-operates in delivering the air radially. The fan is mounted with its motor in a roof ventilator.
Patent GB-134723-A (GB)
IPC: H01T13/24
Abstract: 134,723. Simpson, W. W. Feb. 14, 1919. No Patent granted (Sealing fee not paid). Sparking-plugs. -Coned sparking surfaces f, g are arranged to close after ignition so as to prevent the access of gases to the interior of the plug, the electrode d being slidably mounted within a sleeve e and pressed by a spring h mounted within a cage j provided with cooling-pins.
Patent GB-623714-A (GB)
Title: Improvements in or relating to buoyancy motors
IPC: F03B13/12
Filed: 1947-05-20
Abstract: 623,714. Buoyancy motors. HAZEL, F. May 20, 1947, No. 13492. [Class 69 (i)] A buoyancy motor comprises a buoyant vertically guided and displaceable tank a which rises and falls with variation of the water level in the chamber b which surrounds it ; and a shaft h mounted on the tank a in bearings j and carrying a pair of toothed pinions g, g<SP>1</SP> which are arranged to " free wheel " on the shaft when it is rotated in one direction and to turn the shaft h when it is rotated in the other direction by a pair of vertical racks f, f<SP>1</SP> fixed adjacent the tank. The shaft h drives through suitable gearing a dynamo n. The outer chamber is provided with a valve-controlled water inlet d and outlet e, the valves d<SP>1</SP>, e<SP>1</SP> being operated by the tank a.
Patent GB-1193361-A (GB)
Title: Liquid Handling Mechanism
Inventor: HARLESS CHARLES ALONZO
IPC: B41F31/14
Filed: 1968-03-20
Abstract: 1,193,361. Printing apparatus. HARKISINTERTYPE CORP. 20 March, 1968 [21 March, 1967], No. 13529/68. Heading B6C. [Also in Division B2] An inking or damping device comprises a fountain roller 16 co-operating with a ductor roller 20 which in. turn engages a transfer roller 22, said roller 20 being provided with eccentric means whereby its periphery is in constant pressure engagement with the roller 22 but moves towards and away from the periphery of the roller 16 so that there is a varying gap there-between. In one form the means includes a metal roller portion (42), Fig. 5 (not shown) carrying an eccentrically mounted rubber sleeve (44) the outer periphery of which may be circular. Alternatively the sleeve may be provided with lobes or with axially extending wires located between the metal core and the rubber sleeve. The gradual movement of the periphery of the roller 20 into the Fig. 4 (not shown), position is stated to obviate the formation of spray at the roller bite. In the embodiment of Fig. 2, each end of the roller 20 is supported in an assembly including an arm 52 pivoted at one end to a stationary shaft 54 and provided at its other with a bore 59 receiving a slide 60 supporting one end of the roller shaft 36. A spring 64 biases the slide 60 so as to maintain the shaft 36 in contact with an adjustable screw stop 63. Rotation of each screw 63 moves the roller 20 transversely to a plane containing the axes of the rollers 16, 22. Means including a spring 76 bias the roller 20 against the roller 22. The force exerted by the spring may be adjusted by rotating a screw bushing 73 relative to a block 74 and locking it with a nut 78. Nuts 81, 82 allow rollers of differing diameter to be used. In the modifications of Figs. 6 and 7 (not shown), the roller (20<SP>1</SP>) is not biased towards the transfer roller (22<SP>1</SP>) but rotates about a fixed axis. The roller (20<SP>1</SP>) is supported at each end by an arm (152) pivoted to the shaft (32<SP>1</SP>) of the roller (22<SP>1</SP>) in a recess (162) in the arm, said recess being closed by a member (163). The roller (20<SP>1</SP>) is adjustable laterally with respect to the roller (22<SP>1</SP>) by a screw (165), a lock nut (169) being used to secure the roller which has an eccentric surface (46) in a selected circumferential position with respect to its eccentricity indicated by a marking (168), Fig. 6 (not shown). A screw (175) adjusts the roller (20<SP>1</SP>) with respect to the roller (16) by pivoting the arm (152). The liquid in the fountain may be in the form of a paste.
Patent GB-730435-A (GB)
Title: Improvements in centrifugal separators for the purification of oil
IPC: B04B5/00
Filed: 1953-05-14
Abstract: 730,435. Centrifugal separators. DAIMLERBENZ AKT.-GES. May 14, 1953 [May 15, 1952], No. 13549/53. Class 23. A centrifugal oil cleaner, comprising a rotor turning within an air-filled casing, is mounted within an oil-containing chamber, such as a crank-case for an internal-combustion engine. The oil to be cleaned passes through a stationary tube 19 to the interior of the rotor. The rotor comprises a cylindrical part 11 attached to the crank-shaft 12 of the engine, and a tubular part 13 supported by a bearing 14. Seals 15a, 15b are provided. A diaphragm 16 fixed to the rotor and having perforations 20 is provided with a collar which co-operates with a stationary tube 17 to form annular passages 21, 24. Solid particles collect at the inner periphery of the part 11 of the rotor, foam passes through the passage 24 to discharge through an outlet 25, and cleaned oil passing through the perforations 20, passage 21 and a spiral or annular chamber 22 is discharged through an outlet 23. An outlet 27 in the casing is provided for oil leaking into the air-space.
Patent GB-135530-A (GB)
IPC: B62M27/00
Abstract: 135,530. Madjaroglou, P., and Paulick, A. June 17, 1918. Sledge velocipedes, adapted to be driven by pedal-operated pickers engaging with the ground, have the pickers o pivotally mounted in funnelshaped brackets p which are fixed to the undersides of the pedals k with their mouths towards the rear. The pickers are thus actuated by the pedals, but have a relative movement with respect thereto limited by the walls of the brackets. An ordinary bicycle i, with the driving-chain removed, is fitted with a front runner a and two rear runners b, the rear runners being carried by standards c and connected by transverse rods c. The backwheel axle of the machine is supported on inwardly projecting hooks upon the standards. A luggage-carrier g may be provided.
Patent GB-389305-A (GB)
Title: An improved quick-action electric light
IPC: H01H19/10
Filed: 1932-05-11
Abstract: 389,305. Snap-action switches. BULGIN, A. F., Abbey Road, Barking, Essex, and STOTT, H. T., 17, Sylvan Avenue, Mill Hill, London. May 11, 1932, No. 13581. [Class 38 (v).] A snap-action switch comprises an operating spindle c on which is loosely mounted an insulating contact cylinder e, and to which is rigidly attached a driving bush e. A shoulder i on the bush f and a shoulder (not shown) on the cylinder 2 provide a lost motion connection between the parts and a torsion spring j is also connected between the cylinder and the driving bush. In the form shown in the Figure, which is for varying the connections of an inductance b, a longitudinal metal insert k on the cylinder e constitutes a movable contact which co-operates with a set of spring contacts m which are recessed at their ends to receive the contact k. This serves to hold the cylinder while the spring is being strained until engagement of the shoulders on the cylinder and driving bush gives a positive start to the cylinder. A longitudinal rib of insulating material serves to arrest the movement and also to provide initial restraint for the return stroke.
Patent GB-737662-A (GB)
Title: Improvements in and relating to electric plug and socket connectors
Inventor: MORRISON JAMES
IPC: H01R13/627
Filed: 1952-05-28
Abstract: 737,662. Two-part couplings. COSSOR, Ltd., A. C. April 17, 1953 [May 28, 1952], No. 13608/52. Class 38 (1). A plug 1 is retained in engagement with a socket 2 by means of U-shaped resilient members 9 attached to the socket by bolts 5 which mount the socket on a chassis 3, said members 9 snapping round the heads of screws 11 on the plug. The screws 11 also serve to retain part of the plug in the plug casing.
Patent GB-401711-A (GB)
Title: Improvements in or relating to garden, deck and hammock chairs or the like
IPC: A47C7/66
Filed: 1932-05-11
Abstract: 401,711. Clips. BELLATTI, E. C., 58, Westow Street, London. May 11, 1932, No. 13615. [Class 44.] A device for adjustably holding a sunshade or umbrella in extended position on a deck or hammock chair comprises a spring clip formed from a single strip of metal bent so as to form a relatively large flat base a, doubled over wing portions b, b <1>, parallel to and at some little distance from the base, and jaws c, c<1> adapted to grip the sunshade &c. The wing parts b, bl allow the sunshade &c. to yield slightly in the wind. A bolt d with a square part d' under the head, and a wing nut f and washer e, serves to secure the device adjustably to the frame p of the chair &c.
Patent GB-662890-A (GB)
Title: Improvements in or relating to the treatment of cellulosic material
IPC: D06L4/23
Filed: 1949-05-23
Abstract: Cellulosic material, especially bast fibres of linen, hemp or jute, is bleached by treatment with a hypochlorite solution initially at a pH not greater than 8 and finally at a pH above 8; this is followed by treatment at an elevated temperature with an alkali or alkaline earth metal chlorite solution.  Preferably the material is washed after every step, including a pre-scouring with hot alkali and (if desired) a final chlorite treatment.  Sodium and calcium hypochlorites are suitable, at an initial pH of 5 (caused by the presence of sulphuric or acetic acid), later increased to 11 by the addition of caustic soda or other alkali. The chlorite solution is preferably buffered to pH 5-5.5.  An example shows the process applied to linen yarn.  Specification 648,632 is referred to.
Patent GB-1421205-A (GB)
Title: Mixing assemblies
IPC: F16K11/04
Filed: 1973-03-21
Abstract: 1421205 Valves RANSBURG CORP 21 March 1973 [21 March 1972] 13692/73 Heading F2V In a fluid-mixing valve a seal 71 on a squaresectioned piston 65 is biased by a spring 73 against the outlet 53 of a nozzle 52 for one fluid. A second fluid passes through semicircular openings (50) between webs 49 of the nozzle to act on the piston to move it against its bias away from the nozzle. Mixed fluid passes along passages (69) formed between the sides of the piston and the bore 66 of a sleeve 60 and slots 62 in the end of the sleeve which slots are sealed by a seal 74 on the end of the piston when the piston abuts the nozzle. Coaxial pipes 13, 14 feed the two fluids to the valve and the inner pipe 13 is attached to the nozzle by a gland sleeve 44, a washer 45 and a nut 46. The nozzle and sleeve are held in position between the two body parts 20, 22 which are threaded together.