baber/WOPTO huggingface dataset:
Patent GB-149310-A (GB)
Title: Improvements relating to apparatus for transmitting indications and the like
IPC: F41G3/14
Filed: 1920-01-13
Abstract: 149,310. Morse, R. V. July 26, 1919, [Convention date]. Sights and methods of sighting.- An electric signalling-system, particularly applicable to ranging guns, comprises a transmitting and receiving apparatus each of which has a potentiometer the moving contacts of which are connected by a lead containing a volt-meter, and the receiver is provided with a compensating-resistance. When the transmitter and receiver are a considerable distance apart, the latter is provided with an arrangement to compensate for errors due to parallax. In the system shown in Fig. 1, the transmitting-station comprises a resistance coil 1 connected across a battery 5 and adapted to be tapped at varying points by a contact arm 2 connected by a lead 7 to a similar contact-arm 13 engaging a resistance coil 8 connected across a battery 12 at the receiving-station. The lead 7 contains a voltmeter 14 and a compensating-resistance 11 is provided at the receiving-station. In a modification a second lead, connecting the points 0 and 0<1> of the resistances 1 and 8, is provided. In the arrangement shown in Fig. 3, the volt-meter 14 is mounted upon a gun platform 22 adapted to be rotated from a handle 25 through gearing 26, 24 and a rack on the base 20. One terminal of the volt-meter 14 is connected to the lead 7 through an insulated bolt 35 and an arm 36 rotatably mounted on the bolt, while the other terminal is connected to the brush 13 through a lead 40. The battery 12, compensating-resistance 11, and the resistance 8 are carried upon a stationary disk 30 which is grounded through the pivot 21 of the platform 22. The resistance 8 consists of a large number of turns of wire wound about a core 46, and the lower portion of the wire coils is embedded in an annular block of insulation. The pitch of the wire on the core 46 need not be uniform. When the transmitting and receiving apparatus are a considerable distance apart, a conection for parallax is introduced by the arrangement shown in Fig. 5. Associated with the scale 61 of the volt-meter 14 is a pointer 62, the pivot 63 of which is varied in accordance with the average range of the target. The pointer 62 is connected to a crank-pin 66 through a link 65, and the crank-arm of the pin 62 is varied by a screw 67 having two micrometer heads 70, 70<1>. The screw 67 is mounted in a gear-wheel 69 connected to the handle 25, Figs. 3 and 5, through gearing 75, 76. The pivot 63 is set for the range or average range of the target, and the gearing 69, 75 is arranged so that the screw 67 is vertical and the pointer 62 in the centre or zero of the scale 61 when the gun has been rotated to point along the line joining the receiver and the transmitter. In operation the needle 60 is caused to coincide with the pointer 62. A similar arrangement is provided to elevate the gun, a volt-meter 55 and handle 54, Fig. 6, being employed for this purpose. The gun is also provided with an automatic fuze-setter 57.
Patent GB-589703-A (GB)
Title: Improvements in and connected with drop-bottom mine cars
IPC: B61D7/16
Filed: 1945-01-13
Abstract: 589,703. Operating door latches from railway tracks. ALLEN & SONS (TIPTON), Ltd., W. G., and WEDDELL, A. Jan. 13, 1945, Nos. 1082/45 and 4572/46. [Class 44] [Also in Groups XXX and XXXII] In a drop-bottom mine car having a plurality of hinged doors adapted to be operated from the track and to open in succession to dump the contents into a bunker below the track, the doors 3, 4, Fig. 3, are locked in the closed position by catches 19, Fig. 9, pivoted to the axle shroud 6 and connected by links 18 to points 17 near the hinge 5 of the preceding door such that when the door 4 is closed by rollers 34 on the track it is held in this position by spring-loaded rollers 36 and when the door 3 is closed by passing over the rollers 34 the link 18 moves the catch 19 to lock the door 4. Similarly, when the door 2 passes over the rollers, it locks the door 3 and is itself locked by pivoted hooks 21 at the end of the car. The hooks 21, Fig. 6, are locked by trip levers 31a mounted on a transverse shaft 28 provided with lugs 29 which are turned to clear.the hook and abut stops 31 when the levers 31a strike a projection 12 (Fig. 1 not shown) on the track. In operation, the car moves over the bunker and as it passes the stops 12, the trip levers 31a rotates the lugs 29 to clear the hooks 21. Further movement causes projections 29 on the hooks to be struck by trip levers 13 (Fig. 1 not shown), on the track to push the hooks clear of the free edge of the door 2. The door 2 opens and withdraws the catches 19 from the door 3 by means of the links 18 and the movement of the door releases the catches 19 holding the door 4. On reverse movement of the car the doors are closed when passing over the rollers 34 on the track and as the car passes the projection 12 the trip gear is operated to move the lugs 29 into position to lock the hooks 21.
Patent GB-675846-A (GB)
Title: Improvements in or relating to trailer jacks
IPC: B60S9/06
Filed: 1951-01-16
Abstract: 675,846. Lifting-jacks. STACEY, F. G. Jan. 16, 1951. No. 1174/51. Class 78 (iii). A jack for supporting one end of a two wheel trailer comprises a channel section leg 6, pivoted to the trailer 1 at 4 and carrying a runner 7 at its lower end, and a screw 9 engaging a nut 10 which is non detachably trunnion mounted on the trailer, said screw having its lower end pivoted to the leg at 8 and being so arranged that when the leg is fully lowered it is vertical and so acts as an upright strut.
Patent GB-371028-A (GB)
Title: Improvements in self-priming rotary pumps
IPC: F04D9/04
Filed: 1931-01-15
Abstract: 371,028. Rotary pumps. BEKENN, C. F. and CLARK, C. B., of Rees Roturbo Manufacturing Co., Wednesfield Road, Wolverhampton. Jan. 15, 1931, No. 1410. [Class 110 (i).] A rotary air pump of the water-ring type is used in conjunction with a centrifugal pump to facilitate starting, and the discharge pipe A from the air pump, is connected to the lower part of the chamber B containing the float E which may be a bell as shown, or a body lighter than the liquid. The float controls a valve F in the discharge pipe G and a valve J at the end of the pipe H leading to the suction I of the main pump. At starting, air from the main suction is delivered by the air pump to the chamber B. The float drops to close the valve J and open the valve F thus enabling the air to escape until priming is completed. Liquid is then delivered to the chamber B and the float rises to close the valve F and open the valve J ; this enables a small quantity of liquid to travel by the byepass H to the main suction. If any air enters the main suction, it will be delivered to the chamber B to drop the float to open the valve F. In a modification the valve J is not used, but a constriction is arranged in the pipe H so that a small flow continuously takes place through the pipe H.
Patent GB-1039431-A (GB)
Title: Improvements in or relating to clamping devices
IPC: F16D1/08
Filed: 1965-01-12
Abstract: 1,039,431. Securing hubs on shafts. O. E. PETER. Jan. 12, 1965 [Jan. 13, 1964], No. 1426 /65. Heading F2U. [Also in Division E2] A hub 7 is secured on a shaft 6 by two internally coned rings 2, 2a, each formed of a number of segments which facilitate expansion of the rings when the latter are drawn up conical faces of a sleeve 1 by tightening screws 3. Oversize low friction plastic cross-pieces 4 (Fig. 2, not shown) are interposed between the segments of the rings 2, 2a and engage slats in the sleeve 1. During assembly the crosspieces 4 centre the hub 7 on the shaft 6 prior to tightening the screws 3. Prior to assembly the rings 2, 2a and cross-pieces 4 are held together by a plastic or rubber ring 5. The segments may be made of steel, cast iron, lightweight metal or plastics material.
Patent GB-598905-A (GB)
Title: Improvements in or relating to safety devices for adjustable-blade propeller controlmechanisms
IPC: B63H21/22
Filed: 1945-01-17
Abstract: 598,905. Variable pitch propellers. SCHWEIZERISCHE LOKOMOTIVUND MASCHINENFABRIK. Jan. 17, 1945, No. 1444. Convention date, Nov. 29. 1943. [Class 114] To ensure that the driving engine of a ship is started only when the variable pitch propeller is in its zero pitch position, a device is incorporated in the engine starting gear to render this inoperative when the propeller control gear is away from the no-pitch position. The valve 19 in the starting air line of an internal-combustion engine is normally held in a closed position by the spring 17. When the variable pitch propeller control lever 15 is in the zero pitch position, the spring-loaded detent 11 depresses the bell-crank 14 and so opens the valve 19 to allow engine starting.
Patent GB-432007-A (GB)
Title: Lamp screen or reflector
IPC: F21V7/04
Filed: 1935-01-16
Abstract: 432,007. Shades and reflectors. MAKAROFF, S., Lofthus, Grefsen, near Oslo, Norway. Jan. 16, 1935, No. 1477. Convention date, Jan. 18, 1934. [Class 75 (ii)] A lamp shade or reflector is in the form of the frustum of a hollow pyramid having an open base, a closed top wall 5, and side walls 3, 4, 6, 7, the inner surfaces of all the walls except wall 7 being made reflecting. The wall 6 may be longer than the wall 7 so as to form an oblique open base. The wall 7 carries an arm 8 to which is secured a spring clip 9 adapted to be clamped round the holder 10 of an electric lamp bulb 2 which projects through an opening in the wall 7.
Patent GB-389226-A (GB)
Title: Improvements in electromagnetically operated relay devices
IPC: H01H50/36
Filed: 1932-01-18
Abstract: 389,226. Electromagnetic relays. SYMES, W., Irlesmere, Irlam Road, Flixton, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London.' Jan. 18, 1932, No. 1505. [Class 38 (v).] The co-operating circular polepieces 2 of the fixed cores 1, 11 of the movable armature 10 of a relay which may be employed in railway signalling circuits are undercut or bevelled at 4, 13 respectively, so as to form acute-angled edges at the pole faces, the bevelling or undercutting being arranged around the complete periphery of the co-operating polefaces 3, 12 in order to prevent fringing of the magnetic flux and to reduce the leakage of flux to a minimum. The contact-carrying: fingers 26 are mounted on a grooved insulating member 29 secured to the lower face of the armature 10, the fingers being held by springs 28 against ball-shaped projections 29 around which they have a limited tilting movement to permit a self-alignment between the movable and fixed contact members. To prevent sticking between the pole faces non-magnetic pips are mounted to project above the surfaces to the pole faces 12.
Patent GB-760796-A (GB)
Title: Improvements in or relating to apparatus for the catalytic combustion of hydro carbons
IPC: F23C99/00
Filed: 1953-01-19
Abstract: 760,796. Catalytic burners. GOGAS, GOCH & CO. Jan. 19, 1953 [March 10, 1952], No. 1559/53. Class 75(1) A flameless combustion burner for propane, methane, or coal or other gas comprises a catalytic layer e<SP>11</SP> disposed in a housing a on a porous ceramic or metallic heat storage plate e having a minimum width substantially greater than its thickness, a shallow gas distributing chamber being formed between the plate e and the base of the housing a. Gas is supplied to the burner through a pipe b provided with a flow restricting orifice member c. The catalytic layer e<SP>11</SP> may comprise asbestos fibres or silica gel to which is bonded platinum or other catalytically active precious metal, or cobalt, iron, nickel, or alloys thereof. The heat store in the plate e stabilizes combustion and also prevents condensation on and consequent poisoning of the catalyst when the burner is extinguished, adequate heat storage being ensured by covering the walls of the housing a with heat insulation i. The heat storage plate e may be preheated before the burner is ignited by means of an electric heating device (not shown).
Patent GB-466523-A (GB)
Title: Improvements in, and in the manufacture of knitting pins
Filed: 1936-01-18
Abstract: 466,523. Moulding knitting - pins. NURSE, C. J. Jan. 18, 1936, No. 1650. [Class 87 (ii)] [Also in Groups VIII and XI] A knitting-pin having a metal wire core hand an outer tube of celluloid or cellulose acetate is produced by heating the end of the tube in a device comprising a heated wire or rod f which enters the end of the tube and an outer hot sheath e which surrounds the end of the tube. When the celluloid &c. is plastic the knitting- pin is removed, the core is pushed into place and the point is formed by pressure in any suitable manner. Specification 431,616 is referred to.
Patent GB-620530-A (GB)
Title: Improvements in or relating to the manufacture of pile fabrics
IPC: D03D27/00
Filed: 1947-01-17
Abstract: 620,530. Making pile fabrics. CROSSLEY & SONS, Ltd., J., and CROSSLEY. C. P. Jan. 17, 1947. No. 1664. [Class 142 (iv)] The wires between which pile elements such as fibres in the form of a batt, are pressed to form folds prior to securing them to a backing are constructed so that one wire can be replaced without disturbing more than the next adjacent wire. In one construction, Fig. 6, the wires 12 are formed in pairs and fit into longitudinal grooves in the surface of a drum on which the folds are formed. The wires are held in place by caulking 22. In an alternative construction, Fig. 7, which utilises the existing type of drum, the wires 12 are mounted in a supporting member 23 which is attached to the surface of the drum by bolts. With the construction shown in Fig. 6, the usual steam chambers in the wall of the drum are dispensed with and the drum is filled with steam, since this construction can be made steam tight.
Patent GB-580035-A (GB)
Title: Improvements in or relating to the production of vinyl cyanide
Filed: 1945-01-22
Abstract: Vinyl cyanide is prepared by a process which includes the step of bringing a gaseous reaction mixture comprising hydrocyanic acid, excess of acetylene and at least 2 per cent by volume of hydrogen into contact with an alkali metal cyanide catalyst at an elevated temperature.  Advantageously, the gaseous mixture contains initially for each volume of hydrocyanic acid at least 1.05 volumes of acetylene and between 0.05 and 98 volumes of hydrogen with or without the addition of an inert diluent gas such as nitrogen or hydrocarbon gases or vapours; the preferred quantities being 1.05 to 3 volumes of acetylene and 0.5 to 30 volumes of hydrogen per volume of hydrocyanic acid.  The catalyst comprises an alkali metal cyanide or a mixture of alkali metal cyanides, supported on a solid granular material which is preferably wood charcoal, but may also be, for example, coke, activated carbon, alumina or silica.  The reaction may be carried out suitably between 350 DEG  C. and 700 DEG  C., the preferred temperature range being from 400 DEG  C. to 600 DEG  C.  The hydrogen may be mixed with the reactant gases before contact with the catalyst or may be added separately to the reaction chamber.  A table gives the results of two runs employing firstly hydrocyanic acid, acetylene and hydrogen and secondly hydrocyanic acid, acetylene and nitrogen showing the action of hydrogen in increasing the amount of hydrocyanic acid reacting.  Reference is made to German Specification 559,734.  The Specification as open to inspection under Sect. 91 includes the use of catalytic bodies known to be suitable for promoting reaction between acetylene and hydrocyanic acid and specifies, in addition to alkali metal cyanides, materials having a high surface activity such as activated charcoal or silica gel.  This subject-matter does not appear in the Specification as accepted.
Patent GB-469180-A (GB)
Title: Improvements in or relating to turbines
IPC: F02C5/02
Filed: 1936-01-20
Abstract: 469,180. Gas turbines. OFFEN, A. Jan. 20, 1936, Nos. 1756 and 10015. [Class 110 (iii)] In a gas turbine of the type described in Specification 445,550, spherical combustion chambers, with inlet and exhaust openings on opposite sides thereof, are spaced angularly, around a rotor, which is driven by combustion products impinging on fixed reaction blading. The spherical chambers 32 are built up of two portions 36, 37 keyed to the shaft 26. Scavening air and explosion mixture are supplied to these chambers by ducts 29, 30, separated by a rib 28. A fuel atomizer 67 enters passage 30. As the rotor rotates, the chambers 32 come into line with the air duct 29 and exhaust 64, Figs. 10, 14, and scavenging takes place. Then the exhaust is closed by the stationary valve 34 and the chambers are charged with a mixture of air and fuel from duct 30. This is fired by a quantity of hot gases, regulated by rod 81, taken through flame tube 69 from the previously fired charge. The hot gases leave the chamber 32 by means of nozzles 60, impinge on fixed blading 63, then pass through moving blades 66 on to the exhaust 62. Scavenging is then again carried out and the cycle repeated. For starting purposes a plug 84 is used, a spark passing between electrode 90 and earthed cap 92. The clearances between the rotor and casing are maintained by placing around heated parts a liner 61 and inserts 85, 93, 94 capable of taking up differences ! of expansion. Heat from the rotor is prevented from reaching the bearings by the oil-cooled glands 106, 109. The cooling jackets fitted with an air release tank 53 are supplied through pipes 56, 57 (behind) with cooling water from a circulating pump.
Patent GB-104003-A (GB)
Title: A System of Dental Charts and Methods and Apparatus for Making the same.
Inventor: STANTON FREDERICK LESTER
IPC: A61C19/10
Filed: 1917-02-05
Abstract: 104,003. Stanton, F. L., (Assignee in part of Fish, G. D.). Feb. 4, 1916, [Convention date]. Teeth, regulating. - A series of dental charts showing the dimensions, relative positions, &c. of a patient's teeth and gums are prepared from castings of the jaws by means of a surveying-instrument. Further charts corresponding to the dimensions ing obtained are prethus obtained are prepared so as to indicate the positions in which the teeth ought to be so as to obtain correct occlusion. The charts are made on translucent paper and assembled in correct register in a book so that the minimum changes required to be obtained by means of the usual tooth-regulating appliances may be indicated. The instrument employed in preparing the corrected charts is shown in Fig. 17, and comprises two series of links I representing the teeth of the upper and lower jaws. The links are of a length greater than, but proportionate to, the mesio-distal diameters of the corresponding teeth, and are connected at their ends by hollow pivots J. The two series are connected by links K - - S and are mounted on slotted links T, U. The instrument is adjusted so as to form a true arch indicating the correct position of the teeth, and the positions of the links are plotted on squared paper by means of pin-pricks made through the hollow pivots. The diagram thus produced is reduced to natural size on translucent paper. A suitable surveying instrument for use in the preparation of the charts from the casts of the patient's jaws comprises means for holding the cast, a standard having a pair of arms pivotally connected thereto, an indicator pivotally mounted on said arms and adapted to be brought into contact with any desired point on the cast by screw means provided with a scale so that the relative height of that part of the cast may be measured. The location of the point to which the measurement refers is recorded on paper supported above the indicator by means of a rod axially movable in a sleeve carried by the arms supporting the indicator.
Patent GB-574474-A (GB)
Title: Improvements in sash windows
IPC: E05F11/00
Filed: 1944-02-01
Abstract: 574,474. Sliding-window holders. HILL, T. D. Feb. 1, 1944, Nos. 1883 and 21510. [Class 44] In a holder for sliding windows of the type in which a spring-loaded catch co-operating with a rack is double-bevelled and capable of limited up-and-down movement as well as a to-and-fro movement in the aperture of a plate-member through which it projects into engagement with the rack, the catch is mounted so that the up-and-down movement is a rocking one about a bearing well to the rear of the apertured plate. The catch may be mounted on the sash and the rack on the fixed frame, or vice versa, and similar catches and racks are preferably provided at both sides of the window with the catches about midway down the styles of the sash. As shown the rack is mounted on the fixed frame 11 and has ratchet teeth with substantially horizontal faces 13 on which the catch rests to hold the window in adjusted position, and curved sloping faces 14 which meet the faces 13 substantially vertically. The catch has a head 5 of rectangular cross-section capable of limited vertical movement between the upper and lower edges of an aperture 6 in an attachment plate 1 secured flush with the edges of the sash 3 by screws 2. The head is bevelled with rounded faces, the bend of the lower face being less steep than that of the upper face. Projecting rearwardly from the head is a pin 8 loosely anchored in a slot 9 formed in a yoke-piece 4 riveted to plate 1, the slot providing a fulcrum about which the vertical rocking movement of the catch occurs. A volute compression spring 7 surrounds pin 8 between the back of member 4 and the head 5 which has lateral lugs 10 limiting its outward movement through aperture 6. To lower the sash from the position of rest shown in Fig. 1, it is first slightly raised, the catch rocking anti-clockwise to the position shown in Fig. 2. The sash is then lowered sharply, the catch making a slight clockwise rotation and sliding inwards against the action of the spring to clear the rack teeth successively. When brought to rest in the desired position of adjustment, the catch resumes the holding condition shown in Fig. 1. According to the first Provisional Specification, the catch has two rearwardly extending pins each surrounded by a helical spring, and the device may be locked by a pin inserted behind the catch or behind the pins to prevent inward release movement of the catch. According to the second Provisional Specification, the locking is effected by a bolt slidable at right angles to the plane of the sash and pulled outwards to effect locking. The bolt has a hinged handle which, in the inward or release position of the bolt, is received in a recess in the sash.
Patent GB-266687-A (GB)
Title: Improvements in current coupling devices for electrically operated dust suction apparatus
IPC: A47L9/28
Filed: 1927-01-22
Abstract: 266,687. Inventia Patent-Verwertungs-Ges., (Assignees of Gren, A. L. Wenner-). March 1, 1926, [Convention date]. Vacuum cleaners.-The cable which supplies current to the motor carries an element 22 which is detachably coupled, in a recess on the underside of the casing of the apparatus, to a member 21 conductively connected with the motor &c. The parts 21, 22 may be united by an easily broken joint, e.g. a bayonet joint. The apparatus is supported on runners 19, and the union is located where it is laterally protected by the sledge or runners.