baber/WOPTO huggingface dataset:
Patent GB-632963-A (GB)
Title: Improvements in and relating to mass spectrometers
IPC: H01J49/38
Filed: 1947-05-09
Abstract: 632,963. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. May 9, 1947, No. 12649. Convention date, May 11, 1946. [Class 39 (i)] A mass spectrometer has a steady magnetic field produced by poles 3, 3<1> energized by coils 4, 5, and an alternating electric field at right angles to it between electrodes 6 and 7. It is shown mathematically that under these conditions ions of a particular e/m ratio will reach the plates 6, 7 whilst others will not. Ions are produced by bombarding the gas with electrons from the thermionic cathode 20, the electrons being accelerated to about 100 volts potential by electrodes 8, 9. Grids 11 are connected to potentials intermediate those of electrodes 6, 7, or may be earthed. A small D.C. potential, for example 0.1 volts, from battery 27, may be connected between electrodes 6, 7 to remove undesired positive ions.
Patent GB-999414-A (GB)
Title: A process for insulating and coating wires, rods, conductors and the like materials
IPC: H01B13/30
Filed: 1964-03-25
Abstract: A glass fibre braided sleeve covering a rubber insulated wire impregnated with an acyloxy end-blocked siloxane, which is then cured at room temperature, e.g. by passing through a bath of aqueous ammonia solution.  Formyloxy, acetoxy, hexoyloxy, and octanoyloxy end-blocked siloxanes are specified.
Patent GB-1076872-A (GB)
Title: Apparatus for supporting sheet materials
IPC: C03B35/24
Filed: 1965-03-25
Abstract: An apparatus for supporting sheets of material such as glass on a cushion of gas, comprises a plurality of supporting zones alternating with gas escape passages, each supporting zone having a blowing zone in the form of a slot and a multi-directional gas flow zone, the blowing slot and escape zone being arranged so that one surrounds the other.  In one form, elements comprise hollow cylindrical member 1 within which are members having an upper cylindrical portion 2, and a lower conical portion 4 and cylindrical portion 5.  The outer member 1 is fixed into and communicates with a plenum chamber 10, gas from which passes through openings 7, 8 in the member 1 into the annular slot 3 formed between members 1 and 2.  The gas exhausts through passages 12.  In another embodiment the support bed comprises a multiplicity of groups of elements fixed to a sole plate 30, e.g. of fused silica, the individual elements being attached to a cylindrical member 21 which contains a hemispherical cavity 22. Gas passes from a plenum chamber 31 into <PICT:1076872/C1/1> <PICT:1076872/C1/2> the cavity 22 and thence through passages 27 to the individual slots 26 of the elements, exhausting through passages 35.  In a further form the exhaust passages are at the centre of the elements.  The gas may be heated to heat a glass sheet 11 supported thereon or may be cold for tempering purposes.  The support bed may be horizontal or slightly inclined and may include means for moving the sheet over the bed.  If desired, the bed may have a predetermined curvature or be made to change its curvature along its length so as to heat bent sheets or cause flat sheets to be bent.
Patent GB-939654-A (GB)
Title: Improvements relating to industrial trucks and other vehicles
IPC: G01G5/04
Filed: 1960-04-09
Abstract: 939,654. Weighing apparatus. D. CORNEY, and E. SOUTHAM. July 5, 1961 [April 9, 1960], No. 12717/60. Class 143. A vehicle carries a container 27 mounted on a sub-frame 15 so that it may be raised by spring pressure to a carrying position and lowered by fluid pressure to a weighing position, load cells or strain gauges 30 supporting the container unassisted in the weighing position. Means are provided for locating and positioning the subframe on the vehicle for imparting tractive and braking forces to the sub-frame. The sub-frame seats on jacks 8 and springs 11 therein, Fig. 3, hold it and the container in the carrying position. To weigh the container a valve 23 in a hydraulic circuit, Fig. 6, is turned to the position shown in full lines and oil from a pump 24 then enters a port in the cylinder 9 of each jack and forces down the pistons 10 against the force of the springs 11 so that the sub-frame seats on the load cells, the weight being shown on an indicator 31. When the sub-frame 15 is raised to the travelling position, conical holes 20 therein, Fig. 4, engage conical heads 17a on bolts 17 which are adjustable in a channel 16 secured to the chassis. Alternatively, extensions from the pistons 10 may have conical ends. The load cells or strain gauges may be incorporated in the hydraulic jacks which, when raised, bring them into contact with the container or subframe. A micro-switch may be operated by the hydraulic jacks to prevent the excitation of a driving motor, or interrupt the circuit of a petrol engine and prevent transport of the vehicle as soon as the weighing begins.
Patent GB-473635-A (GB)
Title: Improvements in or relating to the mounting of bodies on the chassis of road vehicles
IPC: B62D29/02
Filed: 1936-05-06
Abstract: 473,635. Vehicle suspensions. CLAYTON, R. F. May 6, 1936, No. 12761. [Class 108 (ii)] In a road vehicle the body is supported upon and secured to metal tubes, or to wooden bars secured to the tubes, extending transversely across the vehicle, the tubes being spaced apart and passing through bearers or brackets carried by the chassis. The transverse tubes c pass through apertures in the upper parts of the brackets b which are secured to the chassis members a. The tubes c are secured to the brackets by horizontal bolts d the tubes c being reinforced at these parts by short lengths of insertion tubing e. The floor f or longitudinal or transverse battens are bolted to the tubes c by bolts g which may be secured as shown or pass right through the tubes c in which latter case short vertical tubular portions may be inserted as reinforcements. The ends of the tubes c may be capped or they may be covered by side pieces secured to the lower ends of the vertical bars i.
Patent GB-678265-A (GB)
Title: Improvements in or relating to furnaces for treating metal
Filed: 1947-05-12
Abstract: In a furnace for refining molten metal, e.g. aluminium, (see Group XII), a gas, such as chlorine, is discharged into the metal in a diffused state through a row of porous carbon tubes immersed in the molten metal.
Patent GB-677072-A (GB)
Title: Improvements in or relating to containers for toilet powders
Inventor: HAILES MYLES BASIL
IPC: A45D33/00
Filed: 1949-05-13
Abstract: 677,072. Powder boxes. LEVER BROS. & UNILEVER, Ltd. May 2, 1950 [May 13, 1949], No. 12783/49. Class 18 A box for powder has an outlet aperture in its side or bottom wall through which the powder may be drawn by a rake e which comprises a stem attached at one end to a plug d for closing the aperture by frictionally engaging therein and having a plate secured to its other end. Aternatively the stem, which is of metal, may be coiled at its inner end to form a means by which the powder may be withdrawn. The box may have a removable lid c which covers a transparent covering f extending over the top of the box.
Patent GB-1300814-A (GB)
Title: Improvements in speed measuring devices
IPC: G01P3/48
Filed: 1970-03-18
Abstract: 1300814 Measuring speed electrically; measuring duration ROBERT BOSCH GmbH 18 March 1970 [18 March 1969] 12910/70 Headings G1N and G1U [Also in Divisions G4 and H3] The angular speed of a shaft is determined by a slotted ferro-magnetic disc 13, Fig. 4, on the shaft, rotating between coils 11, 12 of an oscillator comprising transistor T10, oscillating at a frequency determined by coil 12 and capacitor C12. The resulting bursts of oscillations are fed via D10 to a monostable multi-vibrator 20, producing square pulses each corresponding to one oscillatory burst from transistor T10, and each making a transistor T13 conductive to pass a constant current to charge capacitor C14 to a voltage indicative of the pulse duration. This voltage is fed to a capacitor C17 via electronic switch 33 comprising transistor T16, which is made conductive by the differentiated leading edge of each square pulse, and transistor T15, which is made conductive by the differentiated trailing edge of each square pulse. The leading edge of each square pulse is also differentiated by capacitor C18 and resistor R20 to make transistor D11 conductive, whereby capacitor C14 is discharged, to be recharged for the duration of the pulse. The voltage on capacitor C17, representing the frequency of the pulses from multi-vibrator 20 and the angular speed of disc 13, is indicated on a meter 18. In a modification Fig. 3 (not shown), the number of oscillations in each burst is counted and converted to an analogue voltage.
Patent GB-566913-A (GB)
Title: Improvements in or relating to a method of and means for carrying out acid etching operations
IPC: C23F1/08
Filed: 1943-08-11
Abstract: 566,913. Etching. WALPOLE, G. S. Aug. 11, 1943, No. 12990. [Class 100 (ii)] Name-plates, dials, dies, &c. are etched by being immersed in an acid bath through which streams of air are directed upwardly on to the whole of the surface to be etched. The plates &c. are supported in a carrier comprising end plates 3 connected by side and bottom bars 4, 5, 7 and by rods or tubes 8 having slots 9 to receive the edges of the plates. Hand holes 11 are provided to facilitate the insertion and removal of the carrier which is secured in the tank by slidable bolts 15 mounted on blocks 17 which hang over the edges of the tank and support the air pipes.. One of the blocks 17 has a passage connected to an air supply pipe and also to a vertical pipe 21 connected to a block 22 having three air outlets leading respectively to pipes 23, 25 and 27. The pipe 23 is connected by an elbow piece 24 to a pipe 32 and the pipe 25 to a T piece 26 communicating with a pipe 28, and also by a second elbow piece 30 with a pipe 31. The pipes 27, 28, 30, 32 extend longitudinally of the tank and are provided with holes, slots or nozzles to direct streams of air upwardly through the acid. These pipes are connected at their other ends by similar elbows and T-piece to a second block 22 by which the air pressure in the pipes may be equalized, and, if desired, air may also be supplied to this second block. The resist may be applied to the articles by the method described in Specification 565,415.
Patent GB-833044-A (GB)
Title: Improvements in or relating to pumping plants
IPC: F04D9/04
Filed: 1957-04-24
Abstract: 833,044. Centrifugal pumps. WERNERT, K. April 24, 1957, No. 13005/57. Class 110 (1). A centrifugal pump is disposed above the surface of the liquid to be pumped, and the inlet nozzle of the pump intake duct is enclosed by a vessel having a non-return inlet valve and connected, through a pipe attached to its top face, with a source of compressed air or other gas, the capacity of the vessel being greater than that of the pump and its intake duct. The supply of compressed air or gas is discontinued on completion of priming. A centrifugal pump 1 is primed by a rotary compressor 2, such as that described in Specification 710,594, which forces compressed air through a pipe 7 into the top of a vessel 5 enclosing the lower end of the suction pipe 4 of the pump, thereby closing a non-return valve 6 and displacing liquid from the vessel 5 into the pipe 4 and the pump 1. When the pump 1 begins to pump liquid, its discharge pressure, communicated through a pipe 9, acts on a diaphragm 8 to render the compressor 2 inoperative. The non- return valve 6 then opens, and the air in the vessel escapes up the pipe 7 and is replaced by liquid. The pipe 7 may be provided with a non-return valve coupled with a valve that vents the air to atmosphere, either through a pipe or by way of the liquid above the vessel 5, when the non-return valve closes. Where the pump 1 is more than 10 metres above the liquid surface, a pipe 11 with an injector-like end 12 is provided, part of the pump discharge being returned through the pipe 11 to force liquid up the pipe 4. Instead of a compressor 2 driven by the driving motor 3 of the pump 1, any other source of compressed air or gas may be used. One pumping set may be used for emptying several ship's holds, each hold having a vessel 5 and the associated pipes, which are connected to the pumping set by stop-valves.
Patent GB-812078-A (GB)
Title: Tuning mechanism for reference cavity resonators
IPC: H01P7/06
Filed: 1956-04-27
Abstract: 812,078. Tunable cavity resonators. BOMAC LABORATORIES Inc. April 27, 1956 [May 23, 1955], No. 13050/56. Class 40 (8). A reference cavity adapted to be tuned to a number of fixed frequencies comprises a hollow resonator and a plunger which may be moved between a number of discrete axial positions by means of a cam plate co-operating with a series of fixed pins. The cavity 2, made of a metal such as " Invar " (Registered Trade Mark), is located within an apertured block 3 by means of a circumferential flange 16. The cavity is evacuated or filled with an inert gas, transmission windows 12, 13 being provided opposite the apertures 4, 5 of the block 3. Shaft 22 of tuning plunger 11 moves within a bearing 23 integral with the top plate of the cavity. A resilient bellows 28 sealed to the top plate and the plunger prevents loss of vacuum. The tuning mechanism comprises a lower fixed plate 29 attached to the cavity and an upper fixed plate 33 supported from the lower plate by means of struts 31 which may be made of Invar or of some metal which compensates thermal expansion of the metal of the cavity. Fixed to the upper plate are pairs of diametrically-opposed pins 34 which are adjusted to protrude by different amounts from the plate 33. These determine the axial position of a cam plate 40 (see Fig. 4) which can be rotated by means of a knob 7 to contact any one of the pairs of pins 34. The cam plate 40 is journalled in the fixed plate 33 and is coupled to the shaft 22 of the tuning plunger by means of a ball 43. The shaft 22 is urged against the cam plate 40 and the cam plate against the pins 34 by a spring 27 whose tension is adjustable by a nut 25 threaded on the shaft 22. The actuating shaft 45 of the cam plate carries a detent switch mechanism 44 and a number of conductive tabs 47 which may be connected in known manner to a multi-conductor cable leading to a frequency-indicating instrument.
Patent GB-680114-A (GB)
Title: Improvements in or relating to television apparatus
Inventor: HOLMAN HERBERT EDWARD
IPC: F21S8/00
Filed: 1949-05-17
Abstract: 680,114. Illuminating subjects. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 4, 1950 [May 17, 1949], No. 13070/49. Class 98 (ii). [Also in Group XL (b)] A television camera is combined with an illuminating device comprising a reflector and an annular light source, the reflector being provided with a central aperture and the camera being positioned such that the axis of its lens system coincides with the axis of the aperture and with the centre of the annular light source. One application of such an arrangement is to the televising of surgical operations in which the source of illumination is mounted above the operating table. In the arrangement shown in the drawings the camera 4, to which is attached reflector 5, the camera lens 8 projecting through an aperture 7 in the reflector, is mounted on a movable carriage 1 by means of a gimbal mounting 6 and the light source which may comprise a plurality of electric lamps arranged in circular manner about the axis of the reflector, but which, preferably, comprises a single lamp (filament or discharge) having an envelope 9 of annular form and circular crosssection, is supported co-axially with respect to the axis of the reflector (and camera lens) by means of supporting arms 12, 13 which also support a cylindrical screen 11 serving to screen the camera lens from the light source. The reflector, which is of the type employed in " shadowless " lamps, is provided with a plurality of concave mirrors 14 and may be further provided with a series of radiallyarranged fins 15 to reduce cross-reflection from the various mirrors. Instead of employing concave mirrors flat mirrors may be employed in which case a dioptic lens should be interposed between the lamp and the mirror. The Provisional Specification refers to Specification 680,113, [Group XL (b)].
Patent GB-276420-A (GB)
Title: Improvements in or relating to artificial teeth
IPC: A61C13/00
Filed: 1926-05-21
Abstract: 276,420. Fripp, S. T. May 21, 1926. Teeth, artificial.-A metal backing for an artificial tooth of the dovetail kind has part of the dovetail cut away to form an opening through which light can pass to exhibit the translucent character of the tooth. As shown, the metal backing b fits on a vertical dovetail on the tooth and has a turnedover portion c forming a stop. A portion d of the backing is cut away to form an opening which will allow light to pass through the translucent tooth.
Patent GB-691172-A (GB)
Title: Improvements in or relating to band-saws for sawing stone
IPC: B28D1/12
Filed: 1948-05-13
Abstract: 691,172. Stone saws. SONAPAR SOC. DE PARTICIPATION SOC. ANON. May 13, 1948 [May 21, 1947], No. 13122/48. Class 124. A band saw for sawing stone is formed of successive blades interconnected by a flexible band in such manner that each 'blade is in contact with the blade or either side and each blade has a cutting element on its outer edge. As shown, a series of blades 9 having their longitudinal sides abutting against those of the blades on either side and obliquely shaped ends having teeth 3 of hard material fixed thereto are held in position by flexible steel straps 6, 7, 8 which pass through lugs or bridge portions 14, 15, 16 formed by pressing out a portion of the blade. Portions on either side of the lugs may be formed into hooks 19 pressed out in the opposite direction to the lugs. The Specification as open to inspection under Sect. 91, includes also the use of an endless steel band cut at one side to form teeth and having slots each ending in a circular hole cut from the cutting edge part of the way across the blade to give more flexibility. This subject-matter does not appear in the Specification as accepted.
Patent GB-271862-A (GB)
Title: Improvements in escapement mechanism for typewriters
IPC: B41J19/18
Filed: 1927-05-17
Abstract: 271,862. Varityper Inc., (Assignees of Wheeler, A. S.). May 28, 1926, [Convention date]. Hammer - impression arrangements; driving-mechanism.- In typewriters having hammer-impression mechanism associated with the escapement wheel of the letter-spacing mechanism a.nd operated by an auxiliary motor, the auxiliary motor is energized by means of an electromotor provided with a starting and stopping switch operated by the auxiliary motor. The mechanism shown in Fig. 1 comprises escapement and hammer devices of the kind consisting of an escapement wheel 5 mounted on a shaft 3 having a ratchet-connection 105, 106 with a pinion 103 gearing with a rack 102 actuated by the carriage motor 100, the escapement, wheel co-operating with an escapement pawl 6 carried by a lever 8 connected to a hammer 13. The escapement wheel is now geared to an auxiliary spring-motor 26 consisting of a drum revoluble on a shaft 22 and containing a coiled spring having its ends connected to the shaft and drum, a pinion 21 on the shaft gearing with a pinion 20 connected to the escapement wheel. An electromotor 34 for winding the spring is connected by a yielding coupling 34<1> to a worm 31 engaging teeth on the drum. The pinion 21 and drum are provided with pins 35, 41 co-operating with cross-arms 36. 40 on a shaft 38 provided with a contact strip 46, Fig. 3, adapted to bridge contacts 48 connected to the leads 49 of the electromotor. A star-wheel 45 co-operates with a spring 42 to retain the shaft in any of the four positions to which it is moved by the pims 35, 41. The auxiliary motor transmits power to the escapement wheel at each operation of the escapement, and the spring is periodically wound by the electromotor. the circuit of the electromotor being alternately closed and opened by the pins 35, 41 respectively. Locking-devices.-For autontetically locking the above-described driving-mechanism if the typewriter is operated when the current is cut off, there is provided a stop-arm 52. Fig. 1, loosely mounted on the shaft 22 and adapted to be moved into contact with a pin 56 on the auxiliary motor 26 by means of a plate 54. on the pinion 21.
Patent GB-105857-A (GB)
Title: Improvements in Pasting Devices for use in Rotary Printing Machines.
Inventor: MILLS THOMAS JOSEPH
IPC: B65H37/02
Filed: 1916-09-18
Abstract: 105,857. Mills, T. J., and Morris, E. T. Sept. 18, 1916. Coating - machines.- Relates to rotary printing-machines of the kind provided with pasting de vices which are readily attachable and detachable and, when placed in position, slip into engagement with driving mechanism forming part of the structure of the machine and consists in the provision of means whereby the scraper of the pasting device may be adjusted from the outside of the machine. As shown a paste trough a is secured by bolts through slots c in feet b into the bearer d of the machine and supports a bracket e for the shaft f of the pasting disk g which rotates in a space j between two fixed scraper plates k and is driven by a crank i engaging a crank pin z of a driven shaft v of the printing machine. At the end of the space j is the scraper plate l adjustable to or from the edge of the disk g by a screw n which screws in a block o attached to the scraper plate l and can be rotated in either direction in its bearing p by skew gearing r, u the gear u being mounted on a shaft s which has a forked end x<1> adapted easily to engage the flattened end of an operating shaft x. The screw n is prevented from screwing out of its bearings p by a collar q on the one side, and the gear r on the other.
Patent GB-623841-A (GB)
Title: Improvements in or relating to turbine and like rotors
IPC: F01D5/08
Filed: 1947-05-16
Abstract: 623,841. Turbine and compressor rotors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and SMITH A. G. May 16. 1947, No. 13234. [Classes 110(i) and 110(iii)] Cooling.-The blades of a gas turbine or like rotor are cooled by conveyance of heat therefrom to a heat-exchanging matrix in the region of the hub of the rotor; the heat may be conveyed from the blades by conduction or by circulation of a fluid within the rotor, and a flow of cooling fluid (normally air) is preferably arranged across the heat-exchanging surfaces, which are preferably at least partly within an axial bore in the rotor. In the embodiment shown, the rotor discs 1 of a gas turbine, carrying the blades 7, are formed to provide a central bore 2 in which is secured, in thermal contact with the rotor discs, a matrix formed of thin webs and rings of metal; air flows through this matrix, by way of holes 5 in the rotor ends, to carry away heat from the rotor and thus from the blades. The air current may be provided by a compressor or by blading which is associated with the rotor and which may form part or all of the heat-exchanging surface ; in one form, the holes 5 are replaced by a bladed annulus, the blades promoting the flow of air and also dissipating heat conveyed from the rotor,by the hubs 8. To increase the flow of heat from the blades 7 to the matrix in the bore 2. a fluid circulation system may be provided in the rotor; in one form (Fig. 4, not shown), this comprises a U-shaped bore in each blade communicating by pipes external to the rotor disc with an annular hollow in the wall of a thick sleeve which fits in the bore 2 of the rotor and has ribbed internal projections with bores communicating with the hollow of the sleeve wall to cool the fluid. The fluid used is an eutectic alloy of sodium and potassium.