baber/WOPTO huggingface dataset:
Patent GB-1477048-A (GB)
Title: Digital/analogue converter circuit
IPC: H03M1/00
Filed: 1974-09-06
Abstract: 1477048 Digital - to - analogue conversion LICENTIA PATENT - VERWALTUNGSGmbH 6 Sept 1974 [28 Sept 1973] 39028/74 Heading H3H In digital-to-analogue conversion, the digital value is the number of logic is continuously circulated through a shift register 1, the contents of which can be controlled by logic 2 for replacing logic is by 0s and vice-versa, the analogue output U 0  being derived by integration of the shift register output. Preferably the number of stages n in the shift register is even. For initial setting to half full scale value, alternate is and 0s are read into register 1 via AND gate U 1 , feedback of the register contents via gate U 3  being inhibited. For subsequent adjustment up (or down) the first 0 (or 1) appearing at the output A is replaced by a 1 (or 0), the rate of replacement being at most 1 bit per recirculation cycle, f 3  = f 1/n . The invention may be used for controlling volume, brightness and colour in TV sets, lighting brightness and servomotors.
Patent GB-1070833-A (GB)
Title: Improvements in or relating to electrode assemblies
Inventor: HUNT DONALD ROBERT
IPC: G01F1/58
Filed: 1964-09-24
Abstract: 1,070,833. Electrode assemblies. GEORGE KENT (STROUD) Ltd. Sept. 21, 1965 [Sept. 24, 1964], No.39045/64. Heading G1N. An electrode assembly for a conductivity meter or flow meter having a tube wall lined with P. T. F. E. 2 comprises a domed bolt having a peripheral ridge 14 which bites into the lining. Also, insulating bush 8 is longer than the wall thickness and squeezes the lining against the head of the bolt.
Patent GB-1373560-A (GB)
Title: Testing of stators of electric machines
IPC: H02K15/02
Filed: 1972-08-22
Abstract: 1373560 Testing steel stator packs M M MIROSHNIKOV E N MINEEV K S KARAPETIAN R N IVANOVA V V ROMANOV S N KURNAKOV G M KHUTORETSKY I I ELIN V M BYKOV and D D VALCHIKHIN 22 Aug 1972 39062/72 Heading H4F A steel stator pack is tested by first induction heating the stator and then helically scanning the inner surface of the stator with an infra-red sensor, the heating winding having been deenergized. The sensor is simultaneously displaced along and rotated about the stator axis. The resulting signal from the sensor is recorded on paper by a halftone electrochemical process to produce a thermal picture of the stator bore from which the co-ordinates and shape of hot spots may be determined. By repeatedly scanning the stator bore as it cools a plurality of thermal pictures are produced from which the depth and intensity of hot spots may be determined.
Patent GB-329951-A (GB)
Title: Improvements in boxes, writing cases, folders, cabinets and compendiums
IPC: B65D5/20
Filed: 1929-08-09
Abstract: 329,951. Ritchie, A. S., and Ritchie & Sons, Ltd., W. Aug. 9, 1929. Divided on 324,435. Stationery cases. - The lid of a box, writing case, folder, &c. carrying stationery is formed with a pocket or compartment accessible only through an opening in the inside of the lid, which forms a fixed front for the compartment. The pocket is formed by a rectangular blank 16 substantially larger than the opening 13a in the lid 13, and having marginal flanges 16a which are turned inwards to bear against the back of the lid, the blank being concealed and retained in position by a covering piece 17. As shown a skeleton frame 16 surrounds the flanges 16a and is secured by the covering piece 17; the frame may be arranged on one or more sides of the pocket and may be formed from extensions of the covering piece.
Patent GB-956929-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D43/18
Filed: 1962-10-18
Abstract: 956,929. Friction clutches. INTERNATIONAL HARVESTER CO. Oct. 18, 1962 [Nov. 21, 1961], No. 39430/62. Headings F2C and F2L. A friction clutch comprises self-engaging shoes 67 which are initially moved into contact with the interior surface of a rotating pulley drum 61 by an auxiliary clutch 73, 76 controlled by a cable 80 and bell-crank lever 83 pivoted at 86, overspeeding of the clutch upon removal of the load from the driven shaft 50 resulting in automatic release of the shoes 67 by centrifugal weights 68 if the auxiliary clutch is inoperative. The disc 73 is carried by the drum 61 and its engagement with the member 76 by a trunnion disc 91 causes rotation of a plate 75 on a boss 75a free on the shaft 50, the plate having slots 78 engaged by pins 79 on the shoes 65 which are carried by pivot-pins 66 on a hub 63 keyed to the shaft 50. The position of the pin 66 on each shoe is such that the rotation of plate 75 causes self-engagement of the shoe with drum 61 against the action of a radial spring 70. Specification 941,970 is referred to.
Patent GB-860274-A (GB)
Title: Indicating instruments
IPC: G01S1/02
Filed: 1957-12-20
Abstract: 860,274. Radio navigation. SPERRY-RAND CORPORATION. Dec. 20, 1957 [Jan. 11, 1957], No. 39619/57. Class 40 (7). [Also in Group XIX] A navigation instrument with at least one pointer 15 moved in accordance with two signals by a servo system and meter 36, respectively, has a knob 26 for disconnecting the servo system from the pointer 15 and driving it manually while the meter 36 remains operably connected to the pointer 15. In an aircraft navigation instrument when used for landing approaches the V-shaped pointer 15 rotates about an axis 22 to show deviation of the craft from a radio beam and also shows displacement from the beam. The pointer 15 is connected to a meter movement 36 by an arm 24 working in a slot 40 in a spherical background member 23 and the rotor 37 of the meter is pivotally supported in a gimbal frame 16 which is rotated about the axis 22. The meter movement 36 is excited with right-left radio displacement signals from a radio-receiving apparatus and a bar 44 is actuated in accordance with a glide-slope receiver. Rotation of the frame 16 is governed by a servo system controlled by a gyromagnetic compass 25 and set through the knob 26 in accordance with a selected radio course, which is indicated by a counter 65 driven simultaneously by the knob 26. For emergency operation, should the servo system become faulty, the pilot pulls knob 26 to its outermost position, thereby causing a cam 82 to rock a bell-crank 72 counter-clockwise to bring an idler gear 83 into engagement with a gear 84 and simultaneously to disengage a contact arm 78 to break the electrical connection between an amplifier 32 and servomotor 31, thus disconnecting the servo-system and enabling the pointer 15 to be rotated by turning the knob 26. If set vertically, the lateral displacements of the pointer 15 imposed by the meter 36 can be observed without risk of interfering with the indications of the glide-slope for 44. The knob 26 comprises a cylindrical outer shell 90 sliding on a brightly-coloured hexagonal inner portion 91 which gives a visual and tactile signal when pulled out. Specification 807,512 is referred to.
Patent GB-1414929-A (GB)
Title: System and method for continuously separating and standardizing a fluid composed of separable components
IPC: A01J11/10
Filed: 1973-08-21
Abstract: 1414929 Separating milk ECONOMICS LABORATORY INC 21 Aug 1973 [21 Aug 1972] 39674/73 Heading A2B [Also in Division G3] In a system for separating a fluid (milk) into two constituents (by a centrifuge 12) the output flow of one constituent is controlled in response to measurement of that flow and of the input flow so as to keep the ratio of these two flows constant. The object is to produce milk with a standerd fat content. Substantially all the fat is removed together with some skim from outlet 16 of the centrifuge (the rest of the skim from 18) so that regulation of the flow from 16 controls the proportion of fat in this flow of milk. The necessary flow for a required proportion depends upon the flow of milk into the centrifuge and its fat content; the former is measured at 35 and the latter is determined by analysis. The result of the analysis determines the ratio of flows, which is set in digital controller 40 (not described). The output flow is measured at 50 and regulated by a pneumatic valve 55 controlled by an electrical/ pneumatic transducer 54. Some of the output is taken away via 62 and the rest is led to a collecting tank 32 where it is mixed with the skim from output 18, and possibly with additives (condensed milk and cream) 84, 85. The proportioning between outlet 62 and tank 32 is determined by the control unit to produce a desired fat content in the tank 32, using signals from flow meters 50 and 65 or 66, whichever is the higher (for accuracy). The additives are similarly controlled, and the level in tank 32 is measured at 30 to regulate the input flow by valve 27.
Patent GB-1502540-A (GB)
Title: Workpiece holder and feeder device for band saws and other machines
IPC: B23Q3/00
Filed: 1976-09-24
Abstract: 1502540 Sawing E ZLAIKHA 24 Sept 1976 [3 Oct 1975] 39777/77 Heading B5L A workpiece holder and feeder mountable on a rectangular base 4 of a machine tool, such as a band saw, comprises a pair of parallel cross bars 84, 86 engageable with opposite sides of the base, means 80, 82 secured to the cross bars and adapted to engage the other two sides of the base, a pair of parallel guide bars 70, 72 fixed to the cross bars, a table 6 for supporting the workpiece and slidable on the base between the guide bars towards the tool 2, and a gravity responsive mechanism 34 fixed to one 70 of the guide bars and to the table 6 and including means 32 for suspending a weight 36 such that, in use, the weight applies a continuous and uniform feeding force as it is lowered to feed the table and a workpiece thereon towards the tool. The means 80, 82 consist of angled members which are adjustably secured to the cross bars 84, 86 to locate the apparatus on the base 4 of the machine tool such as a band saw having a vertical blade 2. The guide bars 70, 72 are secured to the cross bars and have grooved edges 74 engaging complementary edges 76 of the table 6 which is formed with a slit 8 to accommodate the blade 2. One end of the table is connected by rods 12, 14 to a bar 10, the ends of which mount pulleys 20, 24 rotatable about vertical pivots 22, 26. A third roller 28 is mounted on a horizontal pivot 30 on a plate 102 fixed to the guide bar 72. A second plate 104 is secured to the guide bar 70 and one end of a cable is secured to the plate, guided over pulleys 20, 24, 28 and connected to a holder 34 for a weight 36 which acts through the pulleys 20, 24 and bar 10 to urge the table along the guide bars towards the saw blade 2 to a limit determined by an adjustable stop 114. A pusher block 40 for advancing the workpiece is mounted on the table and consists of a plate section 42 and bar section 44, the block is mounted for angular adjustment on the table, workpieces being held against the block by clamps 64 and screws 62. The block may be removed from the table and the workpiece clamped directly on the table by the clamps 64 and screws 62 engaging threaded holes 66 in the table. A spacer bar 110 may be mounted on the table by screws 112.
Patent GB-838362-A (GB)
Title: Improvements in and relating to hurdles more particularly for constructing pig folds
IPC: E04H17/18
Filed: 1958-12-10
Abstract: 838,362. Hurdles. FARMERY, H. Dec.10, 1958, No. 39862/58. Class 45. A hurdle, more particularly for use in constructing pig folds, comprises upper and lower metal members 1, 2, preferably of angle section, joined by vertical end members 3, 4 and an intermediate vertical member, or members, 5, 6, also of angle section, insulators 11 for electrified wires 12 being secured within the confines of the angle sections so that the hurdles may be stacked without damaging the insulators. The top members 1 have apertured extensions 13, 14, whereby the hurdles may be secured together by pins or bolts to form the fold. The vertical members 3, 4 have spiked extensions 7, 8 for driving into the ground, and the intermediate members have shorter spikes for the same purpose. A plate 15 with the top edge bent over at 16 for strength, is secured to the vertical members to prevent rooting at the base of the hurdle and to prevent piglets from escaping beneath the lower wire 12.
Patent GB-402043-A (GB)
Abstract: 402,043. Steam cooking-apparatus. EGAN, F., Cooagh, Ballymote, Co. Sligo, Irish Free State. Feb. 17, 1932, No. 4758. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 24, 1932]. [Class 28 (i).] A steam-heated container or oven for baking bread &c. and more particularly adapted for use with an apparatus for preparing fodder having an internal steam distributor, comprises a circular box 1 having a tightly fitting lid 3, the box being compartmented by upstanding hollow ribs 5, and steam being admitted to the pockets in the ribs by slots 7. The apparatus is fitted on to the steam distributor by the socket 8.
Patent GB-955054-A (GB)
Title: Improvements in and relating to receptacles
Inventor: SHEPARD RICHARD WILTON
IPC: B65D85/24
Filed: 1962-10-26
Abstract: 955,054. Cases for rodlike articles. TORRING- TON CO. Oct. 26, 1962, No. 40571/62. Headings B8K and B8P. A receptacle for knitting- machine needles comprises a seamless pocket of plastics material 4 having forwardly projecting sides 6 and a front panel 7 with an upper opening and forwardly extending tabs 9 on the sides of the pocket opposite said opening. An integral flexible hood 13 extends from the back of the pocket and from said hood there further extends a narrow tongue 15 which fits within the opening between the sides of the pocket. The receptacle is preferably formed from an oil retentive, moisture resistant and transparent plastics material of homogeneous character and can be made by injection moulding or extrusion. Notches 14 are provided at the outer corners of the back 5 to facilitate uniform bending of the hood.
Patent GB-1436556-A (GB)
Title: Leather and textile substitute material made of thermoplastics material and articles made therefrom
IPC: D06N3/06
Filed: 1972-09-01
Abstract: 1436556 Foamed ethylene/vinyl acetate copolymer sheets LEUNA WERKE "WALTER ULBRICHT" VEB 3 Sept 1973 [1 Sept 1972] 40587/72 Heading C3C A foamed polymeric sheet is made from an extrudable material comprising at least one ethylene-vinyl acetate copolymer having 4- 60% by wt. of vinyl acetate units, the sheet having a density of 0À39-0À41 g./cm.<SP>3</SP> and optionally containing up to 20% by wt. of one or more further thermoplastic or thermosetting polymeric products, fillers, reinforcing material, plasticizers, stabilizers, antistatic material and/ or colouring substances. In the examples ethylene-vinyl acetate copolymer or a mixture thereof with different monomer contents were mixed with citric acid, sodium bicarbonate and an antistatic agent, or with sodium chloride and tetrahydrofuran and the mixtures were foamed by extrusion using a mixture of dichlorodifluoro- and trichloromonofluoromethane. The foamed sheets may be embossed or crumpled to give a graining effect, and may be formed into a purse (Fig. 3, not shown).
Patent GB-896669-A (GB)
Title: Surface treatment of silicon
IPC: H01L21/306
Filed: 1959-11-30
Abstract: 896,669. Etching. PACIFIC SEMICONDUCTORS Inc. Nov. 30, 1959 [July 27, 1959], No. 40624/59. Drawings to Specification. Class 100(2) An etch for etching silicon, particularly in preparing silicon wafers for use in semi-conductor devices, includes an aromatic hydrocarbon having at least two hydroxyl groups attached to adjacent carbon atoms dissolved in a solution having a pH in the range from approximately 9 to 12, the solvent being capable of oxidizing elemental silicon. The ratio of solvent to solute is 10 to 1, etching temperature 90-110 C., and the etching action is slow, allowing accurate control, e.g. the etching time may be 12 hours. When the silicon has a silica coating, the temperature is initially raised to near the boiling point of the etch, while a heavy silica coating is removed by a preliminary treatment with hydrofluoric acid. Silica can be used as a resist if it is desired to etch small areas. The solvent may be anhydrous hydrazine, or 5-50% water added to hydrazine, piperidine, ethylenediamine, ethylamine, sodium hydroxide, or combinations thereof. The solute may be catechol, pyrogallol, 1,2,3,5-benzenetetrol, 1,2,4,5-benzenetetrol, 1,2- naphthalendediol, 2,3-naphthalenediol, 1,2-anthracenediol, protocatachiric acid, pyrocatecholsulphonephthalein, or combinations thereof.
Patent GB-1055581-A (GB)
Title: Improvements in or relating to heating controls
IPC: H01H37/54
Filed: 1961-11-15
Abstract: 1,055,581. Thermal switches. A. E. R. ARNOT. Dec. 6, 1962 [Nov. 15, 1961; Dec.16, 1961; July 30, 1962], Nos. 40803/61, 45142/61 and 29133/62. Heading H2B. [Also in Divisions F2, F4, G1 and G3] A thermal switch 1, 2 comprises a bi-metal disc 24 heated by vapour from a nozzle 34, 34a, operating a pair of contacts 33 through an insulating member 29. To maintain the water at a temperature below boiling point a thermostat is provided comprising a tube 35 containing a bi-metal helix attached at one end to an arm 37 through a rod 38. In another arrangement, Fig. 2, vapour from an electric kettle impinges on a capsule 51 or 51<SP>1</SP> to compress a bellows which through members 82, 83 open first the circuit to a main heater and then the circuit to an auxiliary heater. Absence of water in the kettle will cause bimetal claws 59 to open releasing a spring 60 thus also opening both heater circuits. Pre-set adjusting screws 63a, 57 are provided.
Patent GB-974776-A (GB)
Title: Composite metal-synthetic polymer rope
Inventor: HEATON MARJORIE
IPC: D07B1/00
Filed: 1962-10-29
Abstract: A rope, suitable for use as a "groundrope" in seine-fishing nets, is made up of a plurality of strands, at least one of the strands comprising a metal core with a plurality of yarns comprising filaments of a substantially non-elastic synthetic polymer wound around it.  Preferably the rope comprises three such strands and the synthetic polymer yarns are composed of polyolefine, for example a polyethylene.  Filaments of natural fibres may be mixed with the filaments of synthetic polymer to give the rope better gripping power.  The metal core may be galvanised steel or lead and its purpose is to sink the rope.
Patent GB-1349011-A (GB)
Title: Glass pressing apparatus
IPC: F15B11/00
Filed: 1971-09-03
Abstract: 1349011 Press forming glass articles CORNING GLASS WORKS 3 Sept 1971 [8 Sept 1970] 41141/71 Heading C1M An apparatus for press-forming an article from a mould charge of molten glass includes a female mould member 27, a male mould member 25 actuated by a hollow piston-rod 16 and associated pressurized fluid cylinder 15 and first piston 13, and a ring mould 26 mounted on the lower end of rod 16 and adapted to be clamped in position by means of a piston-rod 20 extending through the interior of the hollow rod 16 and its associated piston 19 and fluid cylinder 18. The apparatus includes a system for controlling the pressing forces which includes a main control valve 50 that may be actuated both mechanically and by fluid pressure. Two cam means 33, 34 are mounted on the piston-rod 16 for movement therewith, upward movement of the cam 33 causing the valve to supply fluid to the upper face of piston 13 while downward movement of cam 34 causes fluid to be supplied to the lower face of the piston thus maintaining the piston-rod 16 in a stable position. The system further includes a two position four way solenoid valve 127 which in its normal position supplies fluid to the control valve 50 to actuate the valve 50 so that it supplies fluid to the lower face of the piston 13, while in a second position it supplies fluid to actuate the valve to supply  fluid to the upper face of the piston 13. A second solenoid valve 130 in its normal position vents the upper end of the cylinder 18 and in a second position supplies fluid to the upper end of the cylinder 18. Each of the valves 121 and 130 are controlled by a timing device which actuates the valves simultaneously and returns valve 121 to the normal position briefly (e.g. 0À06 seconds) before returning the valve 130.
Patent GB-1432628-A (GB)
Title: Electrically operable travelling-field race for moving bodies
IPC: D03D47/26
Filed: 1973-09-04
Abstract: 1432628 Linear motors VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE-ALPINE MONTAN AG and ETAB WANDERFIELD & CO 4 Sept 1973 [15 Sept 1972] 41539/73 Heading H2A [Also in Division D1] A travelling field race for propelling movable bodies such as weaving loom shuttles comprises a polyphase winding electrically divided into sections which are energized successively by semi-conductor switching devices, such as thyristors, in dependence on the position of the movable body, there being capacitors connected in parallel with each winding section and the switching devices associated with the phase windings of each winding section being operated in succession, each switching device being fired at a time when the voltage across at least one capacitor connected thereto passes through zero. Thus, voltage peaks consequent to switching are avoided and the capacitors compensate for reactive current in the winding sections. The race disclosed has a plurality of modules 4 with respective winding sections 1. The S-phase windings of all sections are connected directly to the supply while the R and T phases are energized through the thyristors 10 controlled by triggering circuits 9. The triggering circuit 9 associated with a given winding section is controlled by a position detector 8 disposed adjacent the previous race module 4 in the direction of movement of the movable body. Similarly each winding section is de-energized when the movable body passes a position pickup 7 adjacent the next following module 4.
Patent GB-1431963-A (GB)
Title: Cationic dyestuffs
IPC: C09B23/14
Filed: 1973-09-05
Abstract: 1431963 Cationic dyes BAYER AG 5 Sept 1973 [6 Sept 1972] 41674/73 Heading C4P Cationic dyes are of formula in which the or each R 1  is each halogen, alkyl, cycloalkyl, aralkyl, heterylalkyl (as defined), NO 2 , CN, acyl, acylamino, amino, alkylsulphonyl, arylsulphonyl, alkoxy, aryloxy, aralkoxy, carboxyl, alkoxycarbonyl, aryloxycarbonyl or aralkoxycarbon or is aminocarbonyl or amino-sulphonyl optionally N- substituted by alkyl, aryl or aralkyl; R 2  and R 4  are each alkyl, alkenyl, cycloalkyl, aryl, aralkyl or heterylalkyl; R 3  is H, halogen, alkyl or alkoxy, R 5  and R 6  are each alkyl, cycloalkyl, aralkyl or heterylalkyl; n is 0-3; An is an anion; each alkyl group or moiety contains up to 6 C atoms and may optionally be substituted by one or more carboxyl groups and/or ionic substituents (other than aryl), the alkenyl radicals contain up to 6 C atoms; and the alkenyl, cycloalkyl and aryl radicals and moieties are optionally substituted by one or more non-ionic and/or carboxyl groups. The dyes may be prepared by a conventional condensation reaction or by treating the corresponding N-cyanoethyl dye with concentrated H 2 SO 4 , and have a wide range of uses. In specific dyes the indoline nucleus contains the following substituents: Cl, CH 3 , benzyl, NO 2 , CN, sulphamino, cyanoethyl, methylsulphonyl.
Patent GB-1407047-A (GB)
Title: Spring suspension arrangement for a motor compressor
Inventor: ROMER B W
IPC: F04B39/00
Filed: 1972-09-11
Abstract: 1407047 Releasable fastenings DANFOSS AS 11 Sept 1972 [14 Sept 1971] 42105/72 Heading E2B [Also in Divisions Fl and F2] A motor compressor, e.g. for a refrigerator, is suspended by helical springs 20 from the wall of a casing 3 to which is secured (welded) brackets 17 each with a flange 32 on which hangs a support 18 secured by at least one resilient rod 36 passed through a flange hole 35 and having an angled part 23 to which one end of a spring 20 is connected. As shown, a stirrup 19 provides two resilient rods 36 and, when inserted, their ends ride over an inclined bottom web 28 of the hanging support 18. The top of the stirrup 19 locates at the out-turned lip of the cup-shaped casing 3 where it is secured by a casing cover when the latter is welded in place.