baber/WOPTO huggingface dataset:
Patent GB-338720-A (GB)
Title: Improvements relating to regulating poles for dynamo electric machines
IPC: H02K1/08
Filed: 1929-11-11
Abstract: 338,720. Elin Akt. -Ges. f³r Elektrische Industrie. Nov. 16, 1928, [Convention date]. Dynamos, regulating; motors, controlling; cores. -A regulating pole for a dynamo electric machine comprises stationary and movable elements with cylindrical contact surfaces, the movable element being capable of displacement in the direction of the cylinder axis, and at least one element possesses a concavely shaped surface produced by the rotation of a curve round the cylinder axis so that axial displacement of the movable element produces an approximately proportional alteration of the voltage, current or output of the machine. In the form shown in Fig. 1, the stationary part 1 of the pole diminishes in thickness from the face to the back and the cylindrical movable magnetic insert 5 can be screwed out on a spindle 6. The face of the magnetic insert 5 nearer the pole face may be concave. Fig. 3 shows a form in which concave surfaces 19, 17 are formed respectively on the outside of the movable element 18 and on the inside of an extension 16 of the fixed member 15. Fig. 4 shows a similar form in which multiple contact surfaces are employed on the fixed and movable elements 26, 27, and the cup wall 25 is of non-magnetic material such as brass. For ease of manufacture, the curves shown may be replaced by approximately straight lines.
Patent GB-1521702-A (GB)
Title: Inverters supplying alternating current
IPC: H02M7/523
Filed: 1975-08-19
Abstract: 1521702 Inverters THOMSON-CSF 19 Aug 1975 [22 Aug 1974] 34460/75 Heading H2F An inverter, provided with protection in the event of the load 5 becoming short-circuited or open-circuited, comprises a first pair of thyristors 1, 2 connected together via inductors 3, a second pair of thyristors 11, 12 connected together via further inductors 3 and poled in the opposite direction to the first pair of thyristors, capacitors 6, 9, a transformer 4 and a detector circuit 45. The thyristors are fired by a signal generator 8 and the firing of the thyristors 11, 12 prevents the build-up of an excessive voltage across the capacitor 6 in the event of the load becoming short-circuited. If the load resistance becomes infinite, a circuit 43, 46 becomes resonant and energy is fed back to the D.C. source E via the rectifier circuit 45 and an inductance 47.
Patent GB-315177-A (GB)
Title: Improvements in or relating to vacuum sweeping machines
IPC: A47L9/06
Filed: 1928-11-23
Abstract: 315,177. Vacdus Engineering Co., Ltd., Sharman, H. B., and Burrage, A. E. Nov. 23, 1928. Vacuum cleaners.-A fixed brush of zig-zag or sinuous form is provided in the nozzle of a vacuum cleaner. The stock may 'be of thin metal and the' brush of rubber, toothed or crenellated or of bristles. Fig. 1 shows a rubber brush with rectilinear crenellations; alternatively, these may be curved. The lower edge may be undulating, vandyked, or flat.
Patent GB-212006-A (GB)
Title: Improvements in metal wings or the like for aircraft
IPC: B64C3/18
Filed: 1922-12-19
Abstract: 212,006. Armstrong Siddeley Motors, Ltd., and Wylie, H. N. Dec. 19, 1922. Planes, construction of.-For connecting a rib to a spar in the framework of an aeroplane wing devices mounted on the rib are arranged to engage the spar solely by clamping action. Abutments 9, secured to or integral with struts 5 connecting the booms 1, 2 of the rib, engage the spar 3 by a clamping action at the junctions of the flange and web portions of the spar. The abutments 9 are preferably strips of spring steel folded as shown and' formed with tongues 13 engaging the sides of the struts, a single rivet serving to secure each abutment to the strut. Preferably one of the struts is adapted to be swung out about one end as shown to facilitate the assembling of the parts. Specification 144,828 is referred to.
Patent GB-1384568-A (GB)
Title: Apparatus for developing latent electrostatic charge images
IPC: G03G15/09
Filed: 1972-07-25
Abstract: 1384568 Electro-photographic apparatus ZELLWEGER USTER Ltd 25 July 1972 [16 Aug 1971] 34714/72 Heading G2H  In a magnetic brush type developing apparatus in which a latent image on a label 127 contacts charged particles at the top 124 for rotating 'brush' 115 the developer mix pattern on the rotating drum 106a is established by a stationary permanent magnet core 116 having poles of successive polarity such that they alternate except for the two adjacent the top 124. The mix is supplied to the brush by a bucket wheel 113.
Patent GB-203255-A (GB)
Title: Improvements in or relating to porous masses for storing explosive gases
IPC: C10L3/04
Filed: 1922-12-20
Abstract: 203,255. Svenska Aktiebolaget Gasaccumulator, and Dalen, G. Dec. 20, 1922. Storing under pressure.-Explosive cases such as acetylene are stored by absorption in a porous mass consisting of kieselguhr in packed, shaken, or compressed condition with or without adhesive means. The packing of the mass into the ccntainer so that it may not shake down and leave spaces which need refilling may be facilitated by ,mixing the mass with 10 to 20 per cent of a fibrous material such as asbestos or cellulose fibres, or by moistening the material, either before or after filling, with acetone or water, subsequent drying being necessary in the latter case after the material has been packed into the container.
Patent GB-301423-A (GB)
Title: Process for the manufacture of monoazo dyestuffs
IPC: C09B29/06
Filed: 1928-11-26
Abstract: 301,423. I. G. Farbenindustrie Akt.-. Ges. Nov. 29, 1927, [Convention date]. Monoazo dyes are made by combining a non- nitrated o-diazophenol sulphonic acid or a halogen derivative thereof with 2-naphthylamine-3-carboxylic acid. When chromed on the fibre green shades are obtained. In an example, diazotized 4 - chloro-2-amino-phenol - 6 - sulphonic acid is coupled with 2-naphthylamine-3-carboxylic acid in the presence of pyridine and the ammonium salt prepared.
Patent GB-426930-A (GB)
Title: Improvements in sewing machines
IPC: D05B71/00
Filed: 1934-12-04
Abstract: 426,930. Centrifugal-action lubricating. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Union Special Machine Co. ; 400, North Franklin Street, Chicago, U.S.A.) Dec. 4, 1934, No. 34789. [Class 12 (iii)] An overhead sewing-machine of the scale pan type has a closed housing with an oil sump lying below the main driving shaft which has a disc dipping into the oil for spraying it over the whole of the mechanisms within the housing. The feed cup shafts, looper, spreader and needle bar work in sleeves projecting through the housing. The machine has a standard 1 and overhanging part 2 enclosing mechanism driven from a main shaft 16. The shaft 16 is mounted in bearings 17 secured to the housing, and any oil which works through the bearing is caught by grooves 52 on the pulley and whirled into a groove 49 in the bearing from which it drains back into the sump through a channel 20. A disc 48 on the shaft 16 dips into oil in a sump formed by a partition 21 and spreads it by centrifugal force over the whole of the mechanism. A looper bar 28 which is reciprocated and oscillated, a spreader bar 45 which is oscillated, and a needle bar 22 which is reciprocated work in sleeves 29, 44, 25 respectively, these sleeves having oil traps such as 26a with drain channels back to the sump. The bar 28 is oscillated by a link connected to an arm 30 on a sleeve 31 oscillating upon a bushing 33 on a fixed shaft 32 secured to the casing by end screws 36 bearing on sealing washers 37. Oil holes 34 are formed in the sleeve and bushing. The feed cup spindles work in sleeves 4, 6 projecting through the overhanging portion of the casing.
Patent GB-1361982-A (GB)
Title: Electronic pulsing circuits for controlling
IPC: H02P7/29
Filed: 1971-07-23
Abstract: 1361982 Control of D.C. motors SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES 23 July 1971 [3 Aug 1970] 34816/71 Heading H2J [Also in Division H3] A D.C. motor control circuit of the type comprising a main circuit formed by a thyristor Th1 and an inductor L, a quenching circuit formed by a thyristor Th2 and a capacitor C and a third thyristor Th3, has its circuit point B connected to the tapping F of a voltage divider R1, R2, the point F being chosen so that the potential of the point B is nearly equal to the potential of the negative terminal 2 of the motor supply source 1, 2. This arrangement ensures that, during motor operation with the thyristor Thl permanently conductive, the capacitor C is kept charged whereby the control circuit can be changed to pulsed operation without interruption of the supply. The operation and advantages of the circuit are discussed with reference to the operation of the known circuit Th1, Th2 Th3, L and C.
Patent GB-411522-A (GB)
Title: Improvements in or relating to absorption systems for cooling, heating and heat-exchange purposes
IPC: F25B17/08
Filed: 1932-12-08
Abstract: 411,522. Refrigerating ; heating systems. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Dec. 8, 1932, No. 34855. Convention date, Nov. 29, 1932. Addition to 411,521. [Class 29.] Absorption, systems.-Solid absorption media are employed in the reversing systems of the plant described in the parent Specification. A plant may comprise generator-absorbers 1 and 18, with the condenser 14 of the first serving as the sole source of heat for generation in the second, which has an air cooled condenser 20. The condensate is led to receivers 16, 21 embedded in cabinet insulation and to evaporator coils 17, 22 located in an ice-making receptacle 23. In the first system an electric heater 9 or high temperature steam &c. may be used, and the solid absorbent, which is located between apertured plates 6, may consist of magnesium chloride, with ethylamine as refrigerant. The second system at lower temperature may employ calcium chloride and ammonia. A steam power plant associated with an absorption machine is also described in which the heat of the steam condenser is utilized alternately in two linked reversing systems out of phase, the condenser being cooled by heat exchange with the evaporators of these systems.
Patent GB-213327-A (GB)
Title: Improvements in shedding and shuttle-actuating mechanism for looms
IPC: D03D49/24
Filed: 1922-12-23
Abstract: 213,327. Grosvenor, J. E., and Picking, W. T. Dec. 23, 1922. Pickers; picking - sticks; picking - motions; shuttles; shuttle-races; shuttle-boxes; lays; reeds. - In weaving pile, loop and other carpets &c. having a heavy ground or body, the warp threads 2, Fig. 1, forming this body &c. remain stationary, the binding-warps 3 forming therewith two sheds through which respective shuttles 5, 5<a> may be picked. The pile warp threads 4 are raised occasionally by the jacquard to form pile. The threads 2 and unraised threads 4 form a race for the upper shuttle. The threads 3 may be moved to three positions by special cams described or to the position shown by ordinary cams. The lower shuttle may be shaped as shown, or a single shuttle may be used in conjunction with a rising and falling box, which also raises and lowers the picker the lay 3 being provided with ribs B<1>, Fig. 3, to form a shuttle race. A two cell shuttle box 7, 7<a>, Figs. 5 and 8, may be used having guiding-grooves 25<a>, 26<a> for the picker, which is also guided in grooves 25, 26 in a member fixed to the shuttle box support B<2>. At the end of its travel, the picker is moved by a member 8 into alignment with the required cell of the shuttle box, this member 8 being raised or lowered into contact with an upper stop 24 or lower stop B<2> by a rod 21 actuated through springs 23 from a swivelling piece 20 operated by lever mechanism from a sectional or Woodcroft cam. The shuttle boxes are mounted on double layswords to maintain the cells 7, 7<a> in a vertical position, and the picking-stick 27 has an upper pivoted end 27a to accommodate itself to the relative movements of the picking-stick and boxes. According to the Provisional Specification, the reed is provided with extensions to form a lower shuttle race and the picker adjusting device is actuated from a bowl or runner which is kept in contact with a cam by springs.
Patent GB-1009544-A (GB)
Title: Improvements in or relating to semi-conductor assemblies
IPC: H01L23/48
Filed: 1962-09-14
Abstract: 1,009,544. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. Sept. 14, 1962 [Oct. 24, 1961], No. 35204/62. Heading H1K. A monocrystalline semi-conductor element with several zones including different conductivity types, has one zone provided with an annular electrode in the opening of which is arranged a contact electrode for another zone, and the element is fitted in a housing with a current supply component pressed on the contact electrode by pressure storage means, a support surface for the pressure means being arranged in a further hollow current supply component for the annular electrode. A suitable element, Fig. 1, is made by diffusing aluminium into the surface of an N-type silicon slice 2 to provide a P-type surface layer 3. An annular recess is etched or milled into the slice, defining an isolated disc of P-type material 4. An annular electrode 5 is provided by alloying a gold-antimony foil on to the layer 4 which forms also an N-type region 6, defining a further P-N junction to produce a P-N-P-N type device. The central igniting electrode 7 is produced by alloying a gold foil containing boron on to region 4 and a further gold foil provides the electrode 10. The silver plated gold layer 10 is then alloyed to a tungsten or molybdenum supporting plate 17, Fig. 2, on a copper cooling base 11 of a sealed housing. A hollow cylindrical copper member 18 contacts the electrode 5 through an annular molybdenum member 20 and the central igniting electrode 7 is contacted by a further current carrying copper component 28, the contact pressure being maintained by the action of a spring 29 between a shoulder of the member 18. Insulating discs 30, 31 are placed at each end of the spring. An insulating silicone rubber sleeve electrically isolates a fine silver wire 34 from the surrounding member 18. Three dished springs 24, 25 and 26 together with steel plates 21, 23 and a mica insulator 22 enclosed by a bell-shaped member 27 complete the base of the sealed housing. The upper end of the housing consists of a copper member 15 housing a rubber or P.T.F.E. plug 37, in which seats a hollow cylindrical metal sleeve 38 through which passes the silver wire 34, with the extremity of the member 15 sealed by a cast resin plug 39 and a solder blob 40 which seals off the metal cylinder 38. Instead of the provision of a spring between insulating spacers 31 and 32, the contact pressure applied between the copper pin 28 and the igniting electrode 7 may be provided by a silicone rubber plug (Fig. 3, not shown) compressed between the shoulder in the base of the member 18 and the flange 30 on the member 28. The semi-conductor arrangement can be a transistor, a four-layer arrangement or a photo-conductive arrangement. Specification 1,007,186 is referred to.
Patent GB-994812-A (GB)
Title: Braking force regulator
IPC: B60T8/26
Filed: 1962-09-17
Abstract: 994,812. Fluid pressure brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM.-GES.], Sept. 17, 1962 [Sept. 16, 1961], No. 35307/62. Heading F2F. A braking force regulator of the kind comprising a cylinder 1 containing a stepped piston 5 arranged in a bore 4 and adapted to reduce the pressure of hydraulic braking fluid to the rear wheels of a vehicle when the pressure supplied by a master cylinder is above a predetermined value, has an inlet 2 for fluid from the master cylinder arranged so that master cylinder pressure acts on the annular step 21 of the piston, an outlet 3 to the rear wheel cylinders of the vehicle such that wheel cylinder pressure acts on the larger diameter end face of the piston, an adjustable biasing means acting on the smaller diameter end of the piston, and a passage 9, 10 in the piston which is closable by a valve member 6 acted on by a spring 19, the passage being opened in the rest position by abutment of pin 18 of the valve member with the end wall 17 of the cylinder. The biasing means may be a spring assembly 23, 24, 25 which is manually adjustable by a screw 26, or may comprise a piston 29, Fig. 2, acted on by air in a pneumatic suspension for the rear wheels of the vehicle, the air acting in a chamber 31 connected to the suspension via inlet 28, against the force of balancing springs 30. The change-over point above which rear wheel cylinder pressure is reduced relative to master cylinder pressure is determined in the former case by the setting of screw 26, and in the latter case automatically according to the load on the vehicle.
Patent GB-1446424-A (GB)
Title: Moulded plastic containers
IPC: B65D1/26
Filed: 1972-07-28
Abstract: 1446424 Moulding containers and lids TUP (PANAMA) SA 19 July 1973 [28 July 1972] 35338/72 Heading B5A [Also in Divisions B8 and F4] A container 1 and lid 2 are formed from polymeric material and either the lid or the container, or both, can be formed with uniformly spaced walls defining a closed air space, and either the container or lid can have a channel 3 into which the other part can fit to form a seal. The parts can be moulded by flattening an extruded tube T, by air jets 35, and forming by plug-assisted vacuum or blow moulding between opposed moulds 30, 31. If necessary compressed air can be passed to the interior of the flattened tube during moulding by a needle 34. The container and lid can be collapsible, Fig. 5b, not shown.
Patent GB-427874-A (GB)
Title: Improvements in rotating basins forming gathering chambers annexed to glass furnaces
IPC: C03B7/04
Filed: 1934-12-08
Abstract: 427,874. Glass manufacture. SOC. ANON. D'ETUDES ET DE CONSTRUCTIONS D'APPAREILS MECANIQUES POUR LA VERRERIE, 3, Rue de Castellane, Paris. Dec. 8, 1934, No. 35348. Convention date, Sept. 20. Addition to 412,847. Drawings to Specification. [Class 56] Relates to the apparatus described in the parent Specification in which a pot or basin rotates in unison with a forming-machine of the suction-gathering type, the rotation taking place step-by-step. According to the present invention, the forming-machine makes several revolutions for each revolution of the pot, so that an area of glass which has been chilled by contact with a mould remains a relatively long time in the reheating region before being returned to the gathering region. Further, the relative movements of the machine and the pot are so arranged that a chilled area of glass does not again make contact with a mould until the pot has made several revolutions.
Patent GB-361121-A (GB)
Title: Improved device for mechanically lacing or skeining hanks of yarn
IPC: B65H54/62
Filed: 1930-11-25
Abstract: 361,121. Lacing hanks of yarn. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Bemberg Akt.-Ges., J. P. ; Postfach 35, Oberbarmen, Wuppertal, Germany.) Nov. 25, 1930, No. 35443. [Class 120 (ii).] In a device for skeining yarn with a needle 10, Figs. 1 and 8, carrying the skeining thread 3, two parallel adjacent dividing members attached to slides 18, 19 are arranged with a two-armed rocking lever 9 on a supporting plate 14 so that by alternately raising and lowering the slides, an alternate shed of the lags of the hank is formed enabling the skeining needle to effect the lacing. Teeth 1 of a comb attached to the plate 14 and inserted in the hank to separate the leas 5, 51, 6, 6<1>, have apertures 2, Fig. 5, for the needle 10, with slots 4 for the withdrawal of the skeining thread 3 and rotary slide pieces 20 with projections 20<1> which are turned through 90‹ in the shed space to raise any depending yarn strands and ensure free passage for the needle 10. The shed is formed by extensions 7, 8 on the slides 18, 19 which are raised and lowered by the lever 9 &c., the thread 3 being secured by, a clip 11. After the needle 10 has passed through the second shed the thread is tied by a knotter 12 and tightening device 13. In an alternative form the leas are divided by alternate solid pins 33, Fig. 8, and divided pins 24, 241, 25, 25<1>, the latter carrying fingers 29, 29<1>, 30, 30<1> and being rotated through 90‹ by a rack 32 and pinions 31 on slotted guides 26, 27, to embrace the leas and to allow the divided halves of the pins 24 &c. to be moved relatively to form the shed, such movement being effected by the lever 9 &c., the slides 18, 19 carrying projections 22, 22<1>, 23, 23<1> engaging grooves in'the divided pins.
Patent GB-523472-A (GB)
Title: Improvements in and relating to supporting means for fluorescent screens for x-ray and like purposes
Filed: 1938-12-06
Abstract: 523,472. Rontgen-ray apparatus. GENERAL ELECTRIC CO., Ltd., and CALDWELL, J. T. Dec. 6, 1938, No. 35525. [Class 98 (i)] In supporting means for fluorescent screens for X-ray and like purposes, in which the screen 1 is carried by a vertically-movable counterweighted carriage 5 through an arm 4 capable of being turned from a position in a horizontal plane to one in a vertical plane, means are provided to prevent the vertical movement of the carriage during movement of the supporting arm between these positions. In the form shown, the carriage 5 is provided with four sets of rollers 14 engaging tracks 12, 13 at the sides of a vertical member 6 of shallow channel section, and counterbalanced by cables connected to counterweights housed in the hollow interior of the member 6. A member 26 carried by a ball-race 24 on the carriage comprises a cylindrical portion 27 the axis of which is perpendicular to that of the ball-race, and a cylindrical portion 30 at the end of the bent arm 4 is rotatably carried in this portion 27, the arm thus being rotatable about two perpendicular axes. In order to lock the carriage 5 against movement a wedge 36 carried by a spring 39 is forced into a corresponding channel (not shown) on the face of the member 6 by a plunger 33, which engages the spring 39 and the part 30 of the arm 4. When the arm is in the vertical or horizontal plane the end of the plunger falls into one of four depressions 32 in the part 30, so releasing the pressure on the wedge 36. A manual locking lever 37 operating a wedge 38 engaging the same channel as the 'wedge 36 is also provided. Specification 523,473 is referred to.
Patent GB-512929-A (GB)
Title: Improvements in or relating to indicating or recording apparatus
IPC: G01P15/135
Filed: 1937-12-22
Abstract: 512,929. Indicating-apparatus; speedometers; inertia-switches. LINELL, F. T. (Downard, S: G.). Dec. 22, 1937, No. 35549. [Classes 106 (iii) and 106 (iv)] [Also in Group XXXVII] Indicating or recording apparatus, especially speed indicators or recorders for use on vehicles, have means which, by reason of inertia, are responsive to abnormal shock, impact or acceleration and thereby control an electric circuit which controls a device for) locking the indicating or - recording mechanism upon response of the said means. The means may comprise a weight 1 suspended by a flexible wire 2, and steadied by a wire 4 yieldably connected to a block 5. Upon the oocurrence of abnormal shock &c. the weight 1 engages springy contact fingers 7 and so complete the circuit of an electromagnet 8 which releases a detent to lock the speedometer shaft. In a modification, the circuit is closed by a disc attached to the lower wire 4 and movable into engagement with a contact ring. To prevent contact being made by normal vibrations, the weight is clamped by spring fingers.
Patent GB-1563542-A (GB)
Title: Copy production machines
IPC: G03G21/00
Filed: 1977-08-24
Abstract: In printing operation with automatic control, the copying machine can make copies on the basis of image information which originates from one of a number of connected image sources which are equipped with optical and/or electronic image-scanning devices. The image sources are called in serially as soon as a current job has been dealt with. The printing operation can be interrupted at any time if, in copying operation, copies, usually in small numbers, are to be made. The copying operation can, however, not be interrupted by printing jobs which arise.