baber/WOPTO huggingface dataset:
Patent GB-247239-A (GB)
Title: Improvements in or relating to devices for use in stereoscopic kinematography
IPC: G03B35/16
Filed: 1924-08-12
Abstract: 247,239. Stobie, V. Aug. 12, 1924. Stereoscopic kinematography. - Apparatus for use in conjunction with a projector or projectors for stereoscopic pairs of kinematographic images, and by spectators when viewing such images comprises two shutters each attached to a member which is wholly or partly of magnetic material and is maintained in vibration by the changes of flux in an electromagnet; one of the electromagnets may be energized from one phase of a two-phase current, the other being energized from the other phase, the two phases being 90‹ or 45‹ apart according as the frequency of oscillation of the vibrating member is equal to or twice that of the alternating current. The Figure shows a shutter b carried by a vibrating spring member a which is wholly or partly of magnetic material and may be permanently magnetized. The shutter b may be wholly opaque or may have a transparent part between two opaque parts. The member a is adjustable both in position and effective length on a base board j carrying an electromagnet h, or on a framework which may itself constitute the electromagnet. Adjustable stops n, n<1> may be provided to limit the swing of the member a. The magnet is energized by a coil i, and a closed secondary coil o, in circuit with a variable resistance p, may be provided round one leg h' of the magnet to permit the power factor to be varied. Sliding contacts s, s<1> may be provided to enable the air gap r to be varied, and one or two adjustable permanent magnets q, q<1> may be provided to modify the swing of the member a. The complete viewing unit comprises two sets of the apparatus shown mounted in a box or other holder, either or both being adjustable to vary the interocular distance; the box &c. may have glazed windows of variable area. The viewing units may be varied by jointed arms secured to the spectators' chairs, and the leads may pass through the arms to switches on or near the chairs. The projection apparatus may be driven by a synchronous motor fed from the same current supply as that actuating the viewing apparatuses, and the stator of the motor may be rotatably mounted to enable the relative instantaneous positions of the projector shutters and viewing shutters to be varied. Each pair of images may be alternately projected several times before the next pair is projected, the frequency of the alternating current, which may vary between 4 and 24, being adjusted for this purpose. When projection is effected by two projectors, the arcs of the projectors may be fed from the current supply to the viewing apparatuses so as to vary the illuminating power of the arcs in synchrony with the shutter movements, and a revolution counter may be provided on each projector to facilitate repairs if either of the films should break during projection.
Patent GB-638849-A (GB)
Title: Improvements in electric switch fuses
IPC: H01H21/16
Filed: 1948-07-19
Abstract: 638,849. Mechanical switches without quick action. DONOVAN ELECTRICAL CO., Ltd., and HAYWARD, W. H. July 19, 1948, No. 19282. Addition to 613,482. [Class 38 (v)] The switch-fuse of the parent Specification is modified in that the movable bridging- contacts 4 are carried by yokes 6 pivoted to links 7 pivoted to the base at 8. The upper yoke 6 is also connected to a link 9 connected by a further link 11 to the operating spindle 12. The lower yoke 6 is connected to the link 9 by a link 13 at a pivot 14 which is slidable in a slot 15 in the casing. On clockwise rotation of the spindle 12 the contacts 4 move simultaneously in an arcuate path about pivots 8 to bridge fixed contacts 1, 2.
Patent GB-367287-A (GB)
Title: Adjustable boot- or shoe-tree
IPC: A43D3/08
Filed: 1931-07-04
Abstract: 367,287. Stretchers for boots, gloves, &c. VALL•E, J. G. A., 81, Avenue Niel, Paris. July 4, 1931. No. 19311. Convention date, July 4, 1930. [Classes 17 (iii) and 141.] A shoe tree adapted to impart sole bending and toe stretching movements similar to those which occur in a boot or shoe in wear comprises a base 21 having pivoted at the rear end 18 a heel piece and at the front end 8 a support 1. Pivoted to the support 1, in one of a series of holes 3, are a pair of detachable cheeks 6 shaped to the shape and size of the toe and having screw studs 4 which are guided in curved slots 5 in the support 1. A link 22 adjustable in length is pivotally connected at one end to an eye 9 at the rear of the support 1, and at the opposite end to one of a series of holes in an are-shaped link 23 pivoted at one end 13 to the base 21 and connected at the other end to a rod 26 which is connected to a crank adapted to be turned e.g. by a handle 30. Rotation of the handle 30 oscillates the support 1 about its axis 8 to bend the sole, and also the cheeks 6 about their pivot 3, to stretch the toe by the engagement of abutments 7 of rubber or other material against a ramp 11 adjustable along the platform 1. Metallic pieces of demi-ovoid shape may be inserted in small holes 28 in the cheeks 6 to stretch the upper at any desired locality, and the cheeks may be covered with leather or felt, if desired. A shoe of translucent rubber or similar material may be provided for exhibiting the action of the apparatus. The Specification as open to inspection under Sect. 91 (3) (a) states that the apparatus is adaptable to the stretching of gloves, and in this case may be provided with suitably-shaped spreading cheeks only. This subject-matter does not appear in the Specification as accepted.
Patent GB-1198733-A (GB)
Title: Improvements in or relating to the Doping of Semiconductor Crystals with Phosphorus
IPC: H01L21/00
Filed: 1968-04-24
Abstract: 1,198,733. Diffusion process. SIEMENS A.G. 24 April, 1968 [26 April, 1967], No. 19313/68. Heading H1K. A source used in diffusing phosphorus from the vapour phase into semi-conductors such as silicon and germanium consists of a mixture of phosphorus pentoxide and water; the source temperature and the pressure in the system are chosen such that the mixture is azeotropic. The source may be made by adding phosphorus pentoxide to orthophosphoric acid or to metaphosphoric acid.
Patent GB-441817-A (GB)
Title: Improvements in or relating to magnetron tube arrangements
IPC: H01J23/10
Filed: 1935-07-05
Abstract: 441,817. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. July 5, 1935, No. 19316. Convention date, July 5, 1934. [Classes 39 (i) and 40 (v)] Heating current is supplied to the cathode of a magnetron through the ferromagnetic core of the associated magnet to reduce the length of the air-gap containing the valve. The filament 2 is stretched between contacts 5, 6 engaging the poles of a U-shaped electro- or permanent magnet 9. The current supply to the filament is connected to terminals 14, 15 on the magnet 9 and an insulating layer or air-gap is provided at 10 to prevent shortcircuiting the filament. Leads 7, 8 to the split anode 3, 4 extend perpendicularly to the filament.
Patent GB-773114-A (GB)
Title: Improvements in or relating to transparency slides
IPC: B21D53/00
Filed: 1955-07-05
Abstract: 773,114. Angular bending; jointing. PERROT, A. July 5, 1955 [Sept. 13, 1954], No. 19359/55. Class 83 (4). [Also in Groups XV and XX] Masks in the form of metal trays 3, 11 are placed over the top and bottom of the frame 1 having a V-shaped groove 2 in its outer edge the flanges 6, 12 of the trays are bent into the groove 2, preferably only along their middle portions so as to leave the corners unbent. An apparatus for bending opposite edges at the same time comprises a base 13 (Fig. 6) having a fixed stop 14 and a movable stop 15 whose edges are formed with dihedral angles 17 corresponding to the V-shaped groove. The frame with the trays fitted over top and bottom is placed on the platen 13 up against stop 14, and by depressing lever 16 the stop 15 is moved towards the stop 14 and the opposite edges of the trays are pressed into the groove (Fig. 3). The operation is repeated for the other pair of edges.
Patent GB-1425215-A (GB)
Title: Structural elements and assemblies of such elements
IPC: B65G21/06
Filed: 1973-04-24
Abstract: 1425215 Conveyers MASYC AG 24 April 1973 [24 April 1972] 19372/73 Heading B8A [Also in Divisions E1 and F2]  A structural bar 15 of generally capital sigma shaped cross-section has flanges 17, 18 of different widths so that it can nest with a similar bar 15<SP>1</SP> when rotated through 180 degrees about a longitudinal axis. Each bar has two rows of equispaced apertures with every second aperture 26 of one row having a wider portion nearer the flange to enable the engagement of slotted rods. Connecting pieces 38<SP>1</SP> having lugs 42, 43 enable sections to be joined perpendicularly, and circular connectors, Fig. 6, having spigots 72 which engage apertures 26 on the bars 15 and arcuate slots 75, enable beams to be connected at an angle. Foot pieces 38 may also be used. The bars may be used to build roller or belt conveyers by the inclusion of rollers 62, Fig. 4. In another embodiment, Fig. 11 (not shown), circular apertures only are provided in the inturned edges of the flanges and in the centre of the web.
Patent GB-533773-A (GB)
Title: Improvements in and relating to electric batteries
IPC: H01M50/51
Filed: 1939-07-04
Abstract: 533,773. Batteries; binding-posts. BURNDEPT, Ltd., and RICHARDSON, R. P. July 4, 1939, Nos. 19446 and 22680. [Classes 38 (i) and 53] A battery unit is fitted with spring-grip terminals so placed that when two units are correctly assembled, a stiff wire connector can be inserted into the positive terminal of one unit and the negative terminal of the other, but as long as the units are correctly aligned the connector cannot be inserted into two positive or two negative terminals. The positive terminal 3 and negative terminal 4 each consist of a strip of metal having a central spring tongue which can grip an interconnecting wire 5 and hold it in a determined direction. The terminals are disposed obliquely so that, when units are placed adjacent each other, the terminal of the positive pole of one is aligned with that of the negative pole of the next so that the wire connector 5 can be passed through them. The terminals are asymmetrically placed relatively to the top of the unit so that if one unit is placed the wrong way round no connection is possible. A wander plug can be inserted in the terminal in either of the positions indicated at 14, 15. A cardboard partition 16, Figs. 3 and 4 (not shown), is placed between the two terminals on each unit to avoid accidental short-circuits.
Patent GB-899612-A (GB)
Title: Improvements in reciprocating machines
IPC: F02B75/26
Filed: 1959-06-08
Abstract: 899,612. Swash-plate mechanisms. BUNYAN, T. W. May 20, 1960 [June 8, 1959], No. 19497/59. Class 80 (3). [Also in Groups XXVI and XXVII] A machine, having four units consisting of axially opposed cylinder-piston pairs 16, 17, Fig. 2, lying parallel to a crank-shaft 2 with an inclined crank-pin 11 comprises transmission structures 23, connected to the pistons by coupling means 30 and mounted entirely or partly by articulated connections 26, Fig. 3, on crank-pin bearings 21, 22, and which have flexible plates 32 secured to adjacent transmission structures so as to maintain axial rigidity whilst permitting transverse relative movement. The machine may be a steam engine, compression ignition or spark ignition engine or a pump. An axial clearance between the piston and transmission assembly and the crank-shaft webs 6 and 7 permits, in the ease of an engine, movement of the assembly towards an end cylinder bank containing a defective cylinder thus tending to restore balance between the respective banks of cylinders. Centralization before starting on the assembly between the crank-shaft webs is effected by the application of pressure fluid, e.g. compressed air or oil, through a pipe 49, Fig. 3, registering ports 38 and passages 40 into the appropriate space between a flange 35, fixed to the crank-pin, and a hollow casing 36 fixed in apertures formed in the shear-plates 32.
Patent GB-915226-A (GB)
Title: Improvements in contour checking devices
Inventor: WALTERS CYRIL HORACE
IPC: G01B5/20
Filed: 1960-06-02
Abstract: 915,226. Gauging profile. ROLLS-ROYCE Ltd. May 11, 1961 [June 2, 1960], No. 19594/60. Class 106 (2). The radial-section profile of a rotatably -mounted circular workpiece, such as a turbine disc 10, is explored by a probe 34 actuating a dial gauge 35, these being carried at one end of an arm 19 which slides vertically on post 21 and has a feeler 33 for following a master template profile 17 as the supporting platform 22 is moved along the rails 22. Departures from the template profile are indicated on the dial gauge. The block 20, in which the arm 19 is mounted, is counterbalanced by a piston 24 riding in cylinder 25 so that it slides freely on post 21 and the members 34 and 33 rest lightly on their coacting surface. To gauge the errors in the contour 36 of the periphery of the disc, the arm 19 is rotatable through a right angle.
Patent GB-424053-A (GB)
Title: Means for analyzing gases by differential thermal conductivity measurements
IPC: G01N27/18
Filed: 1933-07-11
Abstract: <PICT:0424053/III/1> A constituent of a gas mixture is estimated by dividing a sample of the gas into two portions, removing the constituent from one of them, and passing the two portions simultaneously through a pair of thermal conductivity cells connected in a Wheatstone bridge in the known manner.  The Figure shows an apparatus for determining carbon dioxide in engine exhaust gas. After passing through a drier 25 and filter 26 the sample is divided. One portion is passed through potassium hydroxide solution 32 and a drying tube 34 while the other portion is correspondingly delayed by passage through a coil 37.  The two portions arrive simultaneously at the conductivity apparatus 22 and the difference in conductivity is indicated on the galvanometer scale 42.  Flow gauges 35, 38 in the gas exit tubes enable the rates of flow to be equalized by means of the valve 36.
Patent GB-778172-A (GB)
Title: Improvements in or relating to dispensing apparatus for liquid fuel
IPC: B67D7/08
Filed: 1954-01-12
Abstract: 778,172. Dispensing liquids. TOKHEIM CORPORATION. Jan. 12, 1954 [Jan. 15, 1953], No. 19741/55. Divided out of 778,171. Class 116. Two sets of liquid fuel dispensing stands A, B, Fig. 1, are normally supplied independently from corresponding electric-motor driven pumps drawing fuel from corresponding tanks, but a suitable valve and switch means permit at least one of the sets of stands to be supplied from the pump and tank corresponding to the other set. The invention is described as applied to the system of Specifications 778,171 and 778,173. The wipers 300, 301, 302, 303 of the rotary switch shown in Fig. 2 serve to connect lines 122a, 122b, energized through lines 120 by switches 108a on any of the stands A and switches 108b on any of the stands B respectively to energize either the pump A or the pump B. In the position of the switch 130 illustrated the switches 108a associated with the stands A control the pump A while the switches 108b associated with the stands B control the pump B. In the two alternative positions of the switch 130 however, all the switches 108a, 108b on the stands A and B control one only of the pumps A, B. The delivery pipes of the two pumps are connected by a line including a valve which may be operated manually or may be operated by a solenoid controlled by a further bank on the switch 130. Specifications 753,542 and 778,174 also are referred to.
Patent GB-882837-A (GB)
Title: New solvent dyes comprising salts of cationic dyestuffs
Inventor: HADDOCK NORMAN HULTON
IPC: C09B69/06
Filed: 1959-06-10
Abstract: The invention comprises the salts of dyestuffs which in their ionised state have their chromophoric systems in cation, with acids of the formula <FORM:0882837/IV (c)/1> where R is alkyl, x is 1 or 2 and y is 1, 2 or 3, provided that at least one of the positions orthoto the -O(CH2)yCOOH group is unsubstituted.  The salts are made by treating a water-soluble salt of the dyestuff with an acid of the above formula in the presence of an alkaline agent or with a water-soluble salt of said acid.  When the dyestuff is stable in the form of its base then this may be treated with the acid to form the desired salt.  Large numbers of dyestuffs and acids of the above formula are specified.  The Provincial Specification relates to the salts of the above dyestuffs with acids of the formula <FORM:0882837/IV (c)/2> where R1 is alkyl, R2 is hydrogen, halogen, or a carboxyl or alkyl group, x is 1, 2, 3 or 4, y is 0, 1 or 2 and z is 1 or 2, provided that (x+z) is not greater than 5 and provided that at least one of the positions orthoto at least one of the <FORM:0882837/IV (c)/3> groups is unsubstituted.
Patent GB-1473749-A (GB)
Title: Monopropellant thruster with superheater
IPC: C06D5/04
Filed: 1975-05-12
Abstract: 1473749 Monopropellant thrust units TRW Inc 12 May 1975 [22 Jan 1975] 19900/75 Heading F1J The invention relates to a monopropellant thruster which comprises a decomposition chamber 11 to which monopropellant such as hydrazine is supplied through line 15, a super-heater 20 having means for heating the decomposed hydrazine, and a discharge nozzle 21 for discharge of the superheated decomposition products of hydrazine. The decomposition chamber 11 is heated by means of a spirally-wound electric element 12 disposed around the chamber. The super-heater 20 is in the form of a coiled tube which is electrically heated and is disposed within a chamber 17. A thermal barrier tube 16 of perforated form is disposed between the hydrazine control valve 14 and the decomposition chamber. In a second embodiment Fig. 2, the decomposition chamber 11 is connected tangentially to the super-heater chamber 23 so that the products enter the chamber with a vortex motion; the super-heater chamber is heated by means of a spirally-wound electric element 24 disposed centrally therein, the gases discharging from the super-heater through nozzle 26. The whole assembly is disposed within a casing 27. The thrusters are suitable for mounting on an earth satellite for control thereof.
Patent GB-167198-A (GB)
Title: Improvements in steam power plants
IPC: F22B1/26
Filed: 1919-08-13
Abstract: 167,198. Ohborg, J. F. O., and Lindroth, W. W. Aug. 13,1919. Superheating chambers heated by combustion gases.-A mixture of steam and hot gases generated by bringing combustion products into direct contact with water is increased in pressure before being utilized in an engine by means of a pump and by superheating. The combustion products from a boiler are directed, when the damper 2 in the uptake is closed, through tubes 5 traversing superheating chambers 13, 19 and then through passages 6, 7 opening into the water space of a chamber 8 around the boiler. Mixed steam and hot gases are drawn off the vessel by a pump 10 and forced through a pipe 12 into the superheater 13 and then supplied to the engine 17. The exhaust gases are taken by a pipe 18 to the superheater 19, and then passed through a pipe 21 to a low pressure cylinder 23. In a locomotive having a high-pressure cylinder 38 supplied with pure steam, and a low-pressure cylinder 17 supplied through a pump (not shown) with a mixture of steam and hot gases, the mixture passes through superheating chambers 13 within the chamber 8 in which the mixture is generated. The superheating chambers are traversed by smoke-tubes.
Patent GB-303337-A (GB)
Title: Knee-control mechanisms for electric sewing machine cabinets
IPC: D05B69/18
Filed: 1928-07-10
Abstract: 303,337. Fairweather, W., (Singer Manufacturing Co.). July 10, 1928. Driving.-A portable sewing machine with an electric motor is provided with a rheostat controller unit of the kind described in 301,237 and operated by a knee lever. The rheostat 12 is mounted obliquely on the side wall 3 of the machine cabinet, and its pull rod 18 is connected to an arm 25 of a bell crank lever pivoted at 24. The other arm 28 of the bell crank lever enters a recess 29 in a lever 30 pivoted at 31 and operated by the knee level 33 pivoted thereto at 34. The knee lever has an adjustably extending piece 35, and can be turned to a storing position when not in use as shown by the dotted lines in Fig. 2.
Patent GB-938206-A (GB)
Title: Process for the production of purest indium
IPC: C25C1/22
Filed: 1961-06-05
Abstract: 938,206. Preparing pure indium. DUISBURGER - KUPFERHUTTE. June 5, 1961 [July 12, 1960], No. 20220/61. Class 41. Pure indium is prepared by electrolysis of an aqueous indium salt solution using a flowing mercury cathode, with which the deposited indium forms an amalgam, in several stages wherein the indium amalgam formed in stage 1 is used as anode in stage 2 to form a purified indium electrolyte from which indium is again deposited on mercury to form an amalgam. Impurity metals are removed from both electrolyte and amalgam by counter flowing mercury from the last cell to the first, and also introducing a second electrolyte, e.g. HCl, in counter-flow with the depleted indium salt electrolytes. In a final stage the purified indium amalgam is used as anode, with a water-free molten pure indium salt, e.g. halide, as electrolyte, preferably in admixture with LiCl and other alkali metal or alkaline earth metal halides, the temperature being maintained above the melting-point of indium metal and the electrolyte, e.g. 200‹ to 250‹ C. The pure liquid indium is drawn off from the cathode area. In the Figure, indium chloride solution is fed at a line 5 into three cells la, 1b, 1c, in series, through which mercury flows in reverse and is drawn off by a pump 13. A level overflow regulator 34 is provided. Chlorine is evolved at carbon anodes 9, 10, 11 and the depleted electrolyte flows out to discharge at 12. The indium amalgam is pumped into cell 2 provided with a partition 19, and the indium dissolves in the electrolyte 16 from the amalgam anode 15, and reforms an amalgam 17. A second similar process is effected in stage 3. HC] is injected at line 28 and flows through stages 3 and 2 to stage 1a by-passing the stages 1b 1c. The acid removes noble metals, zinc and iron, and the rate of flow is adjusted to equal that of the electrolyte flow out at 12. Mercury is added through at line 31, and enters the cathode zone of stage 3. In the final zone 4 the purified indium amalgam 24 is decomposed via the electrolyte 25 and pure liquid indium metal is drawn off at 27. Preferably a large anode surface is used relative to the cathode. Any traces of mercury are removed by heating to 800‹ C. in vacuo, in hydrogen or an inert gas.
Patent GB-444529-A (GB)
Title: Improvements in automatic slack adjusters for vehicle brakes
IPC: B61H15/00
Filed: 1935-07-16
Abstract: 444,529. Slack -adjusters for brakes. SVENSKA AKTIEBOLAGET BROMSREGULATOR, Malm÷, Sweden. July 16, 1935, No. 20302. Convention date, July 20, 1934. [Class 103 (i)] An automatic slack-adjuster particularly for railways has a screw connection comprising nut 1 and a screw 12 operated, on brake release, to reduce slack through a rotary lost-motion connection 3 of such a magnitude that the slack reduction takes place near the end of the brake releasing movement the connection 3 being operated by a member 2 which moves with the brake piston and being connected to the nut 1 by a one-way coiled spring clutch 7. The lost motion connection 3 comprises a ring having notches 6 engaged by a pin 5 mounted in the operating member 2, and allows the member 2 to rotate freely in relation to the ring 3 through an angle which is approximately the same as that through which the sleeve 2 is rotated when the brake piston travel is normal. The pin 5 may be withdrawn against a spring 9 and be re-engaged with another notch 6.