baber/WOPTO huggingface dataset:
Patent GB-259662-A (GB)
Title: Improved method of and means for determining the volume and weight of the solid or liquid contents of receptacles
IPC: G01F17/00
Filed: 1925-07-13
Abstract: 259,662. British Launderer's Research Association, Parker, R. G., Jackman, D. N., and Vowler, J. N. July 13, 1925. Indicating by weighing liquid. - The liquid in a washing-machine or other vessel is measured by supporting one or more of the feet of the vessel on ridged or knife-edged supporting means resting on the ground, and supporting the remaining feet upon fluid pressure cells, each cell consisting of a chamber enclosed by a flexible diaphragm upon which rests a plunger, the cell or cells being connected to a pressure gauge. When applied to a laundrywashing - machine standing on four legs, two of the legs rest upon ridges 4, Fig. 1, running across troughs 1, and the remaining legs rest upon plungers 5, Fig. 3, each provided with a cavity 12 to receive a stud on the leg. The plunger rests upon a rubber diaphragm 6 clamped between the base parts 7, 8. The cavity beneath the diaphragm is filled with glycerine and communicates with a passage 15, Fig. 5, leading to a pressure gauge. A branch passage 16 leads to an air chamber within a removable cap 18. The pressure gauge may be graduated in lbs. and gallons, the pointer being adjusted to indicate zero when the machine is empty. The air chamber within the cap 18 damps the effects of vibration. When applied to a machine standing upon three legs, one leg only rests upon a plunger.
Patent GB-999488-A (GB)
Title: Vapor-grown semiconductor devices
IPC: H01L21/205
Filed: 1963-05-07
Abstract: <PICT:0999488/C6-C7/1> A process for producing a vapour-grown semi-conductor structure including a plurality of layers having a gradient of impurity concentration therein, includes the steps of simultaneously reacting in a first zone of a reaction chamber a halogen transport element with both a source of semi-conductor material and at least two sources of impurities of opposite conductivity type having different degrees of bonding with the halogen, whereby vapours of compounds of the halogen with the semi-conductor material and with the impurities are formed and establishing a temperature gradient between the first zone and a second zone in which a substrate of semi-conductive material is disposed, the temperature gradient being such that the vapours produced by the first step pass into the second zone and are there decomposed to be epitaxially deposited on the substrate, whereby the initially-grown layer of semi-conductor material on the substrate is of a conductivity-type determined by the conductivity type of the impurity which is less strongly bonded to the halogen.  Thus n-type material may first be deposited followed by p-type material or i-type material wherein p-type and n-type impurity concentrations exactly correspond.  As shown in Fig. 1, sources of iodine 4, Ge doped with Ga 5, and Ge doped with Sb 6 in a container 1 are heated in a first zone by windings 3a to 500  DEG C. and the resultant halide vapours 9 pass to a second zone heated by windings 3b to 380  DEG C. where deposition occurs on a substrate of semi-conductor material, n-type material being deposited initially.  Instead of separate sources 5 and 6, a single source of compensated material may be used.  Possible structures that can be built up are illustrated in Figs. 3A-3D (not shown) (see Division H1). In one of the structures, part of the vapour-grown layers is etched away to produce a mesa contour. Specification 916,887 is referred to.
Patent GB-578850-A (GB)
Title: A system for heating or cooling and ventilating rooms
IPC: F24F5/00
Filed: 1943-10-30
Abstract: 578,850. Ventilating rooms &c. CAUCHANER, D. Oct. 30, 1943, No. 17967. [Class 137] Rooms or other enclosures formed by hollow walls C are heated or cooled by the admission of conditioned air into the upper part of the hollow space D through a duct B, the lower part of the space communicating with the room through a valve F. A duct E at the upper part of the room opposite to the side at which air is supplied to space D communicates through a plug valve L with the outer air. The face of the wall bricks open to space D is left porous to facilitate rapid heat exchange with the admitted air. In operation, air is first admitted to space D with both valves closed; the heating or cooling effect of the wall space is then increased or decreased by opening valve F or duct E.
Patent GB-461490-A (GB)
Title: Improvements relating to tube rolling mills
IPC: B21C37/20
Filed: 1936-06-29
Abstract: 461,490. Rolling tubes. SOC. ANON. D'ESCAUT ET MEUSE. June 29, 1936, No. 17984. Convention date, Feb. 27. [Class 83 (iv)] In pilgering a tube on a mandrel reciprocated by a piston 1 the usual quarter &c. rotation of the tube, (by helically grooved rod 3 working in the nut 4 with a one-way ratchet 5) may be suspended, as desired, so as to make some lengths of the tube of other than circular section, e.g. as in Fig. 4. The pawls 10 can be raised out of contact with the ratchet teeth 6 of the nut which is thereby freely rotatable and so exercises no turning effect on the rod 3 and the work, the raising means comprising a cam 15, for each pawl stem 11, on a curved bar 16 which can be rocked round by handles 17, so that the cams 15 act on cross-pins 14 in the pawl stems 11 to lift the pawls clear.
Patent GB-1190715-A (GB)
Title: New Process for Preparing 16alpha,17alpha-(beta-Methyl-alpha-Phenyl-Methylenedioxy)-Pregn-4-ene-3,20-dione
IPC: C07J71/00
Filed: 1968-04-16
Abstract: 1,190,715. Pregnane 16α,17α-acetophenides. SMITH KLINE & FRENCH LABORATORIES. 16 April, 1968 [5 May, 1967], No. 18007/68. Heading C2U. 16α,17α - (# - methyl - α - phenyl - methylenedioxy) - pregn - 4 - en - 3,20 - dione is prepared by reacting 3#,16α,17α-trihydroxy-pregn-5-en- 20-one with excess acetophenone in the presence of perchloric acid or iodine as catalyst to obtain 16α,17α - (# - - methyl - α - phenyl - methylenedioxy) - pregn - 5 - en - 3# - ol - 20- one which is then oxidized either directly or via 5,6 - dibromo - 16α,17α - (# - methyl - α - phenyl - methylenediozy) - pregnan - 3# - ol - 20 - one.
Patent GB-516009-A (GB)
Title: Improvements relating to soot-blowers
IPC: F28G3/16
Filed: 1938-06-17
Abstract: 516,009. Soot-blowers. WILSON, A. M. June 17, 1938, No. 18010. [Class 99 (ii)] In a soot blower having a blower tube and ejector nozzle housed in a boiler wall and projected periodically into the boiler the blower tube is driven by an electric motor and clutch means are provided for periodically reversing the direction of movement of the blower tube without reversing the motor. Means are also provided for stopping the motor after a predetermined number of operations. The driving shaft 41 has keyed to it a toothed clutch member adapted to engage one or other of clutch teeth 47, 48 on bevel wheels 40a, 40b, which drive in opposite directions a shaft 37 geared to the blower tube. A nut 59 on a screw-thread ot shaft 37 has a striker adapted to engage triggers 56, 57 on a rod 55 connected to the clutchactuating lever 52. A spring-urged plunger 62 engaging a lug 53 ensures positive actuation of the clutch. For stopping the motor after six movements of the blower tube pins 66, 67 on the nut 59 engage a star-wheel 68 to operate a cam 70 controlling a switch-operating member 71.
Patent GB-1068900-A (GB)
Title: Improvements in or relating to copy milling machines
IPC: B23Q35/00
Filed: 1964-05-01
Abstract: 1,068,900. Copy-milling. W. BRANDSTATTER, W. HECKLEMANN, and H. LEMMEL, [trading as MASCHINENFABRIK MICHAEL KAMPF KOMM GES.]. May 1, 1964 [May 4, 1963], No. 18282/64. Heading B3K. [Also in Division G3] A copy milling-machine comprises a control tracer 9 for controlling power drives to produce vertical, transverse and longitudinal movements of a slide 11 carrying the tracer and a cutter 10, means for disconnecting the drives, a manual lever for effecting longitudinal and vertical movement of the cutter with a rigid tracer replacing the control tracer, and a rack-and-pinion drive 17 for moving the cutter slide transversely. A transverse slide 3 is moved by a screw 4 through a releasable nut 5 and controlled by a magnetic clutch in the tracer circuit. A similar drive 7 is provided for movement of the longitudinal slide 6 along a cantilever arm 2 carried by the slide 3. The cutter slide 11 is vertically movable on the slide 6 by a drive 13, 14.
Patent GB-886157-A (GB)
Title: Process for the manufacture of aldehydes or ketones
IPC: C07C45/28
Filed: 1958-06-09
Abstract: Aldehydes and ketones are produced by contacting hydrocarbons which contain olefinic bonds with an aqueous solution of a compound of a metal of the platinum group at a temperature in the range 0 DEG C.-250 DEG C., whereby an aldehyde or ketone having the same number of carbon atoms as the initial hydrocarbon is obtained. Suitable metallic compounds are: palladium chloride, hexachloroplatinic acid, rhodium chloride, and palladium phosphate.  The aqueous solution preferably contains free hydrochloric, sulphuric or phosphoric acid. The hydrocarbon may be brought into intimate contact with the aqueous solution by means of a spray-tower, packed column, or stirring-vessel.  In order to increase the miscibility, a solvent, such as glacial acetic acid or dioxane, may be added.  In Example (1), propylene is irrigated in a spray-tower at 80 DEG C. under a pressure of 80 atm. with an aqueous solution which contains 17.8 grm. PdCl2 and 55 grm. HCl per litre.  The effluent solution is distilled in a column; and acetone is obtained as distillate.  The aqueous solution, which now contains precipitated palladium, is pumped from the still to a second spray-tower, in which it is contacted with oxygen at 80 DEG C. and a pressure of 50 atm.  The clear solution so obtained is re-used for irrigating propylene.  The velocity of circulation of the solution is adjusted so that the solution remains in the spray-towers for 15 minutes.  Examples 5 and 8 relate to the preparation of acetaldehyde by the action of an aqueous solution of palladium chloride and of rhodium chloride, respectively, on ethylene.  Example 6 relates to the production of acetophenone from styrene.  Examples 3, 7 and 9 relate to the production of n-octyl-methyl ketone, benzyl-methyl-ketone, cyclopentanone, b -indanone, pentene-2-al-1, crotonaldehyde, cyclohexanone, and methyl-ethyl ketone.
Patent GB-1019695-A (GB)
Title: Device for the preselection of working strokes of knitting machine mechanisms
IPC: D04B15/66
Filed: 1964-05-04
Abstract: A control mechanism for a pattern drum or striping mechanism comprises a pawl 3 Fig. 2 (not shown) mounted in a slide 2 adapted to be actuated by a cam 6 on the needle bed carrier 8 of a circular machine such that the reciprocatory motion imparted to the slide 2 by the cam 6 and a return spring 9 causes the pawl to rotate a ratchet wheel 4 secured to a pattern drum.  The extent of the movement of the slide 2 is determined by a further slide 1 Fig. 1 (not shown) having a notched recess providing surfaces 16, 17, 18 against which a pin 5 secured and slide 2 rests depending on the position of the slide 1 is determined by a flexible cable urging it in a downwardly direction. Accordingly the movement of the slide 2 can be restricted to prevent operation of the pawl or permit it to actuate the ratchet by one or two teeth.
Patent GB-998371-A (GB)
Title: Ignition means for a continuous flow engine
Inventor: STARK FRANK HENRY
IPC: F02C7/266
Filed: 1964-05-04
Abstract: 998,371. Gas turbine plant. F. H. STARK. May 4, 1964, No. 18513/64. Heading F1G. [Also in Division F4] Ignition means for a gas turbine engine comprises an igniter removably mounted in a carrier movable between an operative position in which the tip of the igniter projects into a combustion zone of the engine and an inoperative position in which the tip is disposed out of the path of the hot gases, a splined portion on the igniter meshing with splines on a locking member resiliently urged towards a position in which the splines thereon engage the splined portion but being movable relatively to the igniter to permit disengagement of the splines and relative movement of the igniter and carrier. A gas turbine jet propulsion engine has a combustion chamber 13 provided with an igniter 16 movable between an operative position in which its tip 17 projects into the combustion zone 18 and an inoperative position in which the tip 17 is disposed adjacent the combustion zone 18 but out of the path of the hot gases. Igniter 16 is threaded at 24 within a cylindrical carrier 25 mounted in a housing 30 bolted to the engine casing 11. A spring 36 urges igniter 16 into the operative position until the pressure of air supplied by the engine compressor to the air duct 22 and acting on face 41 of a nut 32 on carrier 25 is sufficient to urge igniter 16 to the inoperative position (shown by the dotted line). In this position tip 17 of the igniter is cooled by the secondary and dilution air flowing in duct 22. A flanged locking ring 45 having splines 44 is urged by a spring 47 into engagement with splines 43 on a flange 42 of igniter 16 so as to lock the igniter relative to its carrier 25. Depression of locking ring 45 disengages splines 43, 44 so that igniter 16 can be screwed inwards or outwards relative to its carrier 25 to adjust the distance tip 17 projects into combustion zone 18. In a modification, igniter 16 is normally in the inoperative position but is moved to the operative position at ignition.
Patent GB-749740-A (GB)
Title: Improvements in or relating to articulated vehicles
Inventor: SCHWAB HANS
IPC: B60D5/00
Filed: 1954-06-24
Abstract: 749,740. Vehicle couplings. KASSBOHRER FAHRZEUGWERKE GES., K. June 24, 1954, No. 18564/54. Class 103 (5). The coupling between a tractor and a trailer of an articulated vehicle comprises a ring 9 secured to the tractor and a ring 6 secured to the trailer interconnected by complementary rings 10, 7 joined by a transverse cross-shaft 8 which allows movement of the trailer relative to the tractor about a transverse axis. The bearings 13 which are secured to the ring 7 and which accommodate the shaft 8 may also support a cross-member 14 forming part of an intermediate frame of a bellows vestibule.
Patent GB-421741-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: H04Q1/38
Filed: 1933-06-30
Abstract: 421,741. Direct call party - line systems. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. June 30, 1933, No. 18635. Convention date, July 1, 1932. [Class 40 (iv)] [See also Group XL] An impulse-transmitting contact is connected to a signalling line through a transformer so that the beginning and end of an impulse cause pulses of opposite polarity which at the receiving station effect the striking and extinguishing or vice versa of a gas-discharge tube such as a neon lamp. A change in condition of the tube automatically controls the priming voltage so that restoration to the original condition may take place with the minimum energy. The invention is described as applied to a party-line system in which each station calls any other station by transmitting a characteristic number of impulses which are received by selectors at all the stations. In the arrangement shown, the neon tube GL is normally maintained by a variable tapping VS at a voltage just below the striking voltage. The closure of impulse contact nsi in series with the primary winding of transformer U2 causes a pulse of current to flow over line VL and at each station the tubes GL coupled to the line through a second transformer U1 are caused to strike. Relays J, H operate, transmitting an impulse to the local selector and removing a short-circuit around a resistance W1 whereby the priming voltage is reduced to a value just above the extinguishing voltage so that when a pulse in the opposite direction is generated in the line VL by the opening of contact nsi the tube is extinguished and relays J, H release. The primary winding of transformer U1 must be of high impedance which may be increased by the addition of a condenser C1 of such a value that the frequency of the oscillatory circuit thus formed is equal to the impulse frequency of the contact nsi. In a modification, the line windings of transformers U1, U2 are connected in series and are alternately shunted by switch-hook contacts so that the selector at the transmitting station does not respond to the outgoing impulses. The tube GL is normally alight and is extinguished as a result of the closure of contact nsi. In a third arrangement, the discharge-tube circuit is directly bridged across the line, priming voltage being obtained from a battery at a central station and adjusted by a variable resistance in shunt with the tube.
Patent GB-848532-A (GB)
Title: Improvements in or relating to continuous casting of metal
Inventor: HOTEKO HENRY EUGENE
IPC: G05D9/04
Filed: 1958-06-11
Abstract: 848,532. Controlling liquid levels. ALUMINIUM LABORATORIES Ltd. June 5, 1959 [June 11, 1958], No. 18638/58. Class 123(1) [Also in Group XXII] Apparatus for controlling the liquid metal level in a wheel type continuous-casting-machine comprises a level detector 11 having an air inlet connection 9 and a number of air outlet vents 14 at spaced intervals so that the rate of air escape from the detector is dependent on the number of unobscured vents, the member 11 being connected to a source of low pressure air through a restricted orifice 10 so that the pressure of air entering the member 11 is varied according to the number of unobscured vents; means 6, for controlling the rate of metal supply to the wheel, and means 7, 8 responsive to the air pressure in the detector for controlling the metal-supply control-means. Instead of, or in addition to the control gate 6 in the launder 4, the output of the air pressure amplifier 8 may be applied to pneumatic or pneumatic-electric means for controlling the tilting of the furnace pouring into the launder.
Patent GB-1434073-A (GB)
Title: Piezo-electric filters
IPC: H03H9/54
Filed: 1973-04-18
Abstract: 1434073 Electro-acoustic filters SIEMENS AG 18 April 1973 [27 June 1972] 18676/73 Heading H3U A piezo-electric filter comprises a permanently polarized ceramic body with a pair of input electrodes arranged at or adjacent to one end of the body so that the electric field induced between them is perpendicular to the electric field induced between a pair of output electrodes at or adjacent to the opposite end of the body. In a first embodiment, Fig. 1, input electrodes 101, 201 are provided on two different faces from the output electrodes 111, 211, the body 2 being permanently polarized in directions (indicated by arrows 3) which are perpendicular to the adjacent electrodes. In a second embodiment, Fig. 2 (not shown), the direction of polarization is parallel to the adjacent electrodes. A third embodiment, Fig. 3, has pairs of interdigitated electrodes 6, 61; 7, 71, provided on opposite faces of body 222 which is permanently polarized adjacent the electrodes as indicated by arrows 9, e.g. from the fingers of electrode 6 towards the fingers of electrode 61. The fingers of input electrodes 6, 61 are disposed at right angles to those of output electrodes 7, 71. Figs. 4 and 5 (not shown) depict filters in which one of the electrodes is divided into two parts which are interconnected via a respective potentiometer (27, 28) a tap of which constitutes a terminal of the filter. The tapping point may be adjusted to reduce cross-talk. To obtain a balanced pair of terminals, two filters may be connected in cascade.
Patent GB-146844-A (GB)
Title: Improvements relating to bevel gears or pinions
Filed: 1920-07-05
Abstract: 146,844. Metropolitan-Vickers Electrical Co., (Assignees of Talley, R. E.). July 5, 1919, [Convention date]. Toothed wheels.-A bevel wheel or pinion built up of laminated non- metallic material, such as paper or duck impregnated with a binder such as a phenolic condensation product, is moulded to dish form before being hardened by heat and pressure, so that the laminations are at right angles to the faces of the gear teeth. The wheel may have a metal hub 8.
Patent GB-1189354-A (GB)
Title: Microwave Semiconductor Device
IPC: H01L45/02
Filed: 1967-04-24
Abstract: 1,189,354. Semi-conductor devices. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP. 24 April, 1967 [25 April, 1966], No. 18734/67. Heading H1K. A microwave amplifier or oscillator has a semi-conductor body insulated from but parallel and close to a slow-wave structure, the length of the body being considerably longer than the wavelength of waves propagated along the structure; the semiconductor has a direct voltage applied across its length and is chosen such that it may be operated in a region in which the carrier drift velocity increases substantially with increasing field, the drift velocity being made to exceed the phase velocity of the slow wave so that power is fed to the wave. For use as an amplifier, microwaves are fed to one end of the slow wave structure and the amplified output extracted at the other end. For use as an oscillator, the slow-wave structure is designed to favour backward-wave propagation and one end of the slow-wave structure is provided with a matched load or left open to absorb forward power; the output is taken from the other end. Fig. 5 (not shown), illustrates an amplifier with a ladder-type slow-wave structure; Fig. 6 (not shown), illustrates an amplifier with a zig-zag (meander) slow-wave structure, (Fig. 7) an amplifier with a helical slow-wave structure, and (Fig. 8) an oscillator with an interdigitated slow-wave structure favouring backward-wave propagation. In both amplifiers and oscillators the slow-wave structure may be chosen so that spatial harmonics, rather than the fundamental, interact with the electron steam in the semi-conductor. Semi-conductors used are N-type gallium arsenide and N-type indium antimonide. The former may be used at room temperature and the latter at the temperature of liquid nitrogen.
Patent GB-1314874-A (GB)
Title: Capture of metals using filters
IPC: C22B11/02
Filed: 1970-04-20
Abstract: 1314874 Gas oxidation reactor including a filter FRIEDRICH UHDE GmbH 20 April 1970 [18 April 1969] 18745/70 Heading BIT [Also in Division C7] A gase oxidation reactor comprises a catalyst chamber in which a noble metal catalyst is used and a filter chamber through which the product gases from the catayst chamber must pass, the filter chamber containing a filter for capture of noble metal which is being carried in dispersed or vaporized form in the product gas, the filter comprising one or more layers of a heat-resistant mineral wool material, each layer of which does not occupy the whole cross-sectional area of the filter chamber whereby a portion of the gaseous product may pass through the filter chamber without passing through the mineral wool material. Fig. 1 shows a filter comprising a plurality of mineral wool layers 4, each layer having openings 5 therein and adjacent layers being separated by spacers 6 of a cross-helical fabric. The filter is supported on support structure 2. In Fig. 2 (not shown) the layers of filter material are formed by strips of mineral wool material disposed cross-wise in such a way that there are communicating vertical and horizontal passages (5) through the filter. In such a case no spacers are required. The mineral wool material is suitably based on silica or alumina.