baber/WOPTO huggingface dataset:
Patent GB-1377882-A (GB)
Title: Adaptive transistor switch
IPC: H03K17/60
Filed: 1973-04-26
Abstract: 1377882 Transistor switching circuits MOTOROLA Inc 26 April 1973 [30 May 1972] 19834/73 Heading H3T A switching circuit for connecting a supply 11  to a load 10 includes a semi-conductor device 12 and means 15 for sensing the voltage across at least a part of the device 12 to produce a control current which has a constant ratio to the load current. With switch 23 in the position shown, transistors 12, 25, 27, 30 are off. Moving the switch to its other position turns on all the transistors and diode 28 also becomes conducting to divert some of the current from transistor 27 which in turn reduces the base current of transistor 12. If the reduction is such that transistor 12 comes out of saturation, the voltage drop across the emitter-collector of 12 reduces the voltage applied to the anode of diode 28 so that more current is available at the base of transistor 27. Thus transistor 12 also receives more base currents to return it to saturation. In a first modification, Fig. 2 (not shown), a transistor (235) is used in place of the diode. In a second modification, Fig. 3 (not shown), elements (341, 342, 343) are added to improve the performance when the unit 15 has a supply greater than 1À5 V, resistor (345) is added to prevent leakage current in the base of transistor 27 and the single transistor 12 is replaced by parallel connected transistor (312) with a resistor (346) in their base circuit.
Patent GB-243071-A (GB)
Title: Improvements in inking apparatus for stencil duplicating machines
IPC: B41L13/18
Filed: 1924-08-21
Abstract: 243,071. White, A. E., (Dick Co., A.B.). Aug. 21, 1924. Inking-apparatus.-The drum of a rotary duplicating-machine is provided with a sealed compartment of which the usual stencil carrying diaphragm forms one wall, and within which is mounted an ink reservoir which can be tilted to supply ink to the stencil. The compartment is formed by a shield 18, Fig. 2, the upper part 19, Fig. 3, and end portions 66, 67 of which are attached to the ends of the perforated diaphragm 7. An ink container 27 is mounted within the compartment upon a spindle 32, which can be given a limited movement by an outside handle 55 so as to tilt the container and supply ink to the diaphragm when desired, a spring 63 serving to return the spindle and container to their normal position. The container 27 is filled by removing a screwed plug 23 in the top 19 of the shield. To provide for ventilation of the compartment, the spindle 32 is tubular at one end and a hooked pipe 53 is screwed into it. The top 19 of the shield is formed with a circular portion 46, Fig. 3, and the ink-container bottom is similarly shaped so that as the shield rotates there is very little clearance between the part 46 and one of the container edges, and the ink on the shield flows back into the container. Ink is conducted from the trailing end of the diaphragm to the leading end as the drum rotates, by the top portion 19 of the shield. To obtain a more uniform distribution of ink over the diaphragm, a framework or grid, composed of longitudinal and tranverse partitions 35, 34, is mounted in close proximity to the diaphragm to split up its area into sections. The partitions 35 are situated just above the diaphragm, while the partitions 34 are provided with openings 36 so as to allow the ink to flow from one section to another. The grid is made in sections, and inserted in the compartment through an opening 24 closed by a cover 25, and is held in position by flanges 38, 40, 47, 48 on the diaphragm, and a pin 37 and screw 41. The flanges 47, 48 are provided with holes 50 to allow the ink to pass through. The end parts 66, 67 of the shield extend beyond the perforated part of the diaphragm and form wells into which the ink may flow if the drum is tilted, the flanges 38, 40 forming with the ends, channels to guide the ink back to the part 46 and thence to the container 27 when the drum is returned to its normal position. The ends of the drum may be utilized to form part of the sealed compartment.
Patent GB-732316-A (GB)
Title: Improvements in or relating to corset garments
Inventor: BROOME JOHN EDWARD
IPC: A41C1/08
Filed: 1953-07-17
Abstract: 732,316. Corsets. SYMINGTON & CO., Ltd., R. & W. H. July 17, 1953, No. 19845/53. Class 141. A high waisted corset of the hookside type is provided with a two-part front section wherein a separate upper front centre piece 12 has an upper portion set well above the waist of the garment, and a lower portion extended below the waist where it overlaps the upper portion of a lower front centre piece 11 and upwardly extending resilient abdominal stiffening strips 18 thereof, the upper front centre piece 12 being of less width than the lower front centre piece 11 and being elastically stretchable so as to stretch when the garment is worn and thereby press upon and control the diaphragm of the wearer above the waist, while reinforcing the abdominal stiffening strips 18 at their upper ends. In one construction, the upper front centre piece I consists of a pair of centre panels 19 fitted with thin strip steel stiffeners 23, secured together by releasable fastenings 21, 22 and joined by elastic inserts 20 to longitudinal marginal panels 9, 10. In an alternative construction the panels 19 are permanently joined together, Fig. 2 (not shown), or are formed as a single whole. The lower front centre piece may be provided with elastic inserts which are stretchable in the circumferential direction of the garment. Specification 366,976 is referred to.
Patent GB-448484-A (GB)
Title: Improvements in or relating to card indexes with overlapping cards
IPC: B42F17/18
Filed: 1935-07-11
Abstract: 448,484. Visible card indexes. BLANCKERTZ, R., (trading as HEINTZE & BLANCKERTZ, [Firm of]), 44, Georgenkirchenstrasse, Berlin. July 11, 1935, No. 19855. Convention date, July 18, 1934. [Class 146 (i)] In a visible card index, corner tabs fixed to the upper edges of the cards 5 are provided with hook-like projections whereby the cards can be suspended from lateral holding bars or from one another in such manner that each tab on a card has to be unhooked before the card can be detached. The tabs 1 are formed with bent-up tongues 2 which are engaged with holes 6 in the holding bars 7 or with holes in flanges on the tabs 1 or on additional tabs fixed to the cards. Clipping tongues are formed on the tabs whereby they are detachably secured to the cards.
Patent GB-478327-A (GB)
Title: Improvements in imparting a matte finish to silk
IPC: D06M11/46
Filed: 1936-07-17
Abstract: Silk is delustred by treatment with water-insoluble stannates and organic compounds containing at least 8 carbon atoms and having a basic reaction, or with reaction products of the two components.  In the case of artificial silk, the components or the reaction products may also be added to the spinning solution or the coagulating bath. Preferred organic compounds are those containing high molecular aliphatic or aliphatic-aromatic radicles, polyamines or fatty acid amides derived from polyamines.  They are preferably used in the form of their salts, e.g. hydrochlorides, sulphates or acetates. Quaternary ammonium compounds as water-soluble bases or salts may also be used, and quaternary phosphonium or ternary sulphonium compounds containing an aliphatic radicle of high molecular weight. Protective colloids or dispersing agents may be added to one or both baths, also waxes and the like, pigments, and solvents.  The delustring may be effected in a single bath by using a suspension of the water-insoluble reaction product, e.g. with soaps or tanning agents; alternatively, the components may be used in the same bath together with a protective colloid which is preferably a reaction product of excess of ethylene oxide on organic compounds having one or more reactive hydroxy, carboxylic, amino or mercapto groups.  A preparation ready for use by adding to water may be made by grinding together a soluble stannate, a salt of the high molecular weight compound and a protective colloid.  In examples: (1) artificial silk skeins or fabric are treated in a sodium stannate bath, squeezed, and immersed in a solution of stearylamine acetate and dried; (2) a viscose fabric is treated in a bath containing sodium stannate, stearylamine acetate and the reaction product of ethylene oxide on oleyl alcohol, and dried; (3) an aqueous solution of stearylamine acetate and the reaction product of ethylene oxide and octodecyl alcohol is evaporated to dryness and the product ground with sodium stannate and calcined Glauber's salts; the product dissolved in water and heated to 70 DEG  C. can be used for delustring artificial silk fabric at 40 DEG  C. Specification 408,240 is referred to.
Patent GB-1149851-A (GB)
Title: A mineral mining plough installation
Inventor: OSTROP BERTHOLD
IPC: E21C27/34
Filed: 1966-05-05
Abstract: 1,149,851. Mineral-mining plough installations. GEWERKSCHAFT EISENHUTTE WESTFALIA. 5 May, 1966, No. 19946/66. Heading E1F. A mineral-mining plough installation involves a ploughing frame that is slidably guided along a mineral face on a roof and floor-engaging structure biassed towards the face and so supports carriers for roof and floor cutters that the carriers can be simultaneously moved relative to one another and to the frame by a single adjuster. Preferably the roof and floor cutters 21 are mounted on the ends of beams 22 pivoted at 24 centrally of the top and bottom of the ploughing frame 18. The adjuster is an articulated draw rod 26 having a limited sliding movement in the frame 18 and being connected to the beams through swing links. The rod 26 is secured in a haulage chain 27 by which the frame 18 is advanced when the .rod 26 abuts, according to the required direction of advance of the frame along a face, the appropriate end of the frame. The relative movement permissable between the link and the frame results in the simultaneous presentation of the appropriate cutters to the face adjacent the roof and floor thereof.
Patent GB-649201-A (GB)
Title: Improvements in or relating to devices for protecting polyphase circuits
IPC: H01H83/14
Filed: 1948-07-27
Abstract: 649,201. Protective cut-out arrangements; automatic circuit-breakers. IGRANIC ELECTRIC CO., Ltd., and RANDALL, C. E. July 27, 1948, No. 20026. [Class 38(v)] A device for protecting polyphase circuits against phase unbalance is retained set by a plurality of elements forming a force-transmission means, said elements being adjusted according to the current in the phases such that relative movement of any neighbouring pair of elements more than a given amount causes the force transmission means to give way and permit tripping. As shown in Fig. 1, the elements forming the force-transmission means may comprise metal plates 10, 11, 12 slidable horizontally and vertically in a frame and having normally abutting projections 19, 20, and 21, 22. Projections 23 on plate 12 abut the end 24 of the frame and projections 18 on plate 19 abut a pressure plate 4 slidable horizontally only and in turn pressing together spring-contacts 1, 2 which control the tripping circuit. Vertical movement of the plates is controlled by bimetal elements 13, 14, 15 heated in accordance with the.current in the phases and engaging a slot 17 in each plate. When sufficient phase unbalance occurs to cause relative movement of adjacent plates such that their projections disengage, pressure plate 4 is released and contacts 1, 2 disengage. Balanced overload protection is provided by an adjustable stop 25 positioned above plate 12 so that plates 10, 11 will continue to rise if the current increases above a pre-  determined amount until projections 21, 22 cease to register whereupon the force-transmission means gives way as before. Re-setting means are provided comprising a sliding plate 26 carrying pegs 37, 27, 29 passing through apertures 38, 28, 30 in plates 4, 10, 11, respectively, so that when pressed to the right against a spring (not shown) said  plates are moved in the order named until  their projections re-align. Fig. 2 shows a modification of the overload protective device wherein an additional vertically-adjustable plate 37 replaces stop 25 and has elongated projections 38 engaging projections 23 on plate 12. Normally projections 23 slide on projections 38 unless an overload causes them to disengage. Additional pegs 41 are provided on the resetting plate engaging apertures 42 in plate 12.
Patent GB-688935-A (GB)
Title: Method of making flexible joints
IPC: B25B27/28
Filed: 1950-08-14
Abstract: 688,935. Assembling resilient mountings. DECOURDEMANCHE, J. H. Aug. 14, 1950 [Aug. 22, 1949], No. 20100/50. Class 108 (iii). A method of assembling resilient mountings of the kind comprising a rubber bush 3 (Fig. 1), disposed with radial compression and axial elongation between inner and outer members 1, 2 comprises applying the bush to one of the members 1 with partial deformation and then applying the other member with a combined relative endwise and rotary movement. The bush 3 when mounted in the outer rigid member 1 (Fig. 1), is placed over a spigot 6 on a table 4. Rotation of the bush 3 is inhibited by a spring 5 which is in frictional engagement with the bush 3 and is bolted to the table 4 at 24. The inner member 2 is mounted between a head 8 and a tapered leader member 7. The head 8 is carried by a shaft 25 which may be given simultaneous rotational and downward axial movement. Torque is transmitted between the head 8 and the sleeve 2, by means of a rubber sleeve 15 (Fig. 3), which is compressed between respective frusto - conical - shaped shoulders on a bolt 10 and a bush 17, by the interengagement of respective threaded portions 18 on the bolt 10 and head 8. The lower end of the bolt 10 has a slotted connection with a projection 13 rigid with a spigot 32 on the leader member 7. In an alternative arrangement, Fig. 2 (not shown), the torque is transmitted by the frictional engagement of a coiled spring disposed in the annular space between the bolt 10 (which in this case is rigid with the head 8), and the bush 2. In a further alternative, Fig. 4 (not shown), the torque is transmitted through a one-way roller-and-ratchet clutch. The rubber bush 3 may be disposed in the rigid bush 1 by conventional methods such as that described in Specification 309,952, [Class 108 (iii)], or may be inserted with a combined rotary and axial motion. The leader member 7 may have helical threads disposed on its surface. The axial movement of the shaft 25 during one revolution thereof should then preferably be equal to the pitch of the thread on the leader member 7. The invention may be applied to the assembly of a bushing, Fig. 7 (not shown), in which the space between the inner and outer rigid members is of sinuous form when the bushing is viewed in axial cross-section.
Patent GB-579106-A (GB)
Title: Improvements relating to the manufacture of wheels for toys
IPC: B23B51/05
Filed: 1944-10-18
Abstract: 579,106. Wood - working machines. DAVIS, J. F. Oct. 18, 1944, No. 20175. [Class 145 (i)] Disc-like articles such as wooden wheels for toys are formed from lengths 24 of wood by cutting an annular groove 52, Fig. 6, in the face of the wood by means of a rotating cutting- tool 42 carried by a driven spindle 37, and subsequently cutting the wood in a plane parallel to the face of the wood at a depth a equal to the required thickness of the wheel, this cut being effected by a circular saw which may be combined with the machine shown. The spindle 37 may be fitted with a drill 50 for drilling a central hole through the wheel, and with a shaping cutter 43 adapted to form a V-shaped annular groove in the face of the completed wheel, and as the three operations are done simultaneously quick production ensures. The work is mounted on a feedcarriage 11 which is supported on wheels 15 adjustable in tracks 16 mounted on a fixed base 8 supported by uprights 2, and the work 24 is clamped. in a work-carrier 17 adjustably supported by wheels 26 movable in a track 27 arranged at right-angles to the tracks 16, so that the work can be set in any desired position in a horizontal plane. The cutter is mounted in bearings 38 in a bar 31 attached to a vertically-movable frame 29 which can be raised and lowered by a treadle 33. The depth of cut is determined by a shoulder 47 on the cutting- tool 46, which is formed with an inclined cutting-edge 48. The shaping cutting-tool 43 is shaped as shown at 49, Fig. 3. The work can be held in set position by aid of an adjustable slotted gauge bar 57 with which is engaged an adjustably mounted arm 64 carried by a guide plate 60 secured to the tool frame. A number of wheels can be cut from a long piece of wood, the bar 57 being graduated to correspond with the required distance between the centres of the wheels. In some cases wheels can be cut from two sides of thick pieces of wood.
Patent GB-223684-A (GB)
Title: Improvements in and connected with suspended arches or suspended fire-brick liners for furnaces and such like
IPC: F27D1/02
Filed: 1923-08-08
Abstract: 223,684. Morton, L., and Hargrove, J. Aug. 8, 1923. Bricks, special shapes of. -The bricks c, Fig. 13, in a suspended furnace arch, of the kind built up of rows of bricks threaded on and supported by transverse bearer bars, are formed with a projection on one side and a groove of corresponding shape on the opposite side, so that when the bricks are assembled adjacent rows interlock. Key bricks k, Fig. 16, are used at the centre of each row to produce inclination in opposite directions of the side bricks.
Patent GB-1442905-A (GB)
Title: Process for separating mixtures of fatty substances into consti tuents of differing melting points
IPC: C09K23/02
Filed: 1974-05-08
Abstract: 1442905 Separation of fatty esters HENKEL & CIE GmbH 8 May 1974 [9 May 1973] 20203/74 Heading C5C [Also in Division C2] Mixtures of fatty substances, viz. acids and esters, are separated into constituents of differing melting points by preparing a dispersion of liquid and solid particles in aqueous solution containing a wetting agent, separating into two phases of different specific gravities the lighter of the two phases comprising the liquid constituents and the heavier, a suspension of solid particles in the aqueous wetting agent solution, these are isolated with at least a portion of the aqueous wetting agent solution being discharged and replaced by water or an aqueous solution containing wetting agent and/or electrolytes and the portions of the wetting agent not discharged being re-introduced to the process wherein the suspension separated from the liquid constituents is converted to a three-phase system, by heating to temperatures between the melting point of the solid and 85 C., comprising melted solids as lightest phase, an aqueous intermediate phase of average specific gravity with a high wetting agent content, and a heavy aqueous phase with low wetting agent content, and these are then separated by conventional means. The wetting agents are selected from alkyl sulphonates, fatty alcohol sulphates, sulpho-fatty acid methyl and ethyl esters, monoglyceride sulphates and/or sulphated reaction products of fatty alcohols with 1-10 mol. of ethylene oxide and/or propylene oxide. Many fatty esters of vegetables, animal or synthetic origin are listed with their fatty acids. Suitable apparatus for continuous operation is described and examples show the making up of distilled stearic fatty acid, distilled sunflower fatty acid, raw palm oil and raw decomposed stearic fatty acid.
Patent GB-375570-A (GB)
Title: Improvements in and relating to sanitary closets
IPC: E03D5/04
Filed: 1931-07-14
Abstract: 375,570. Seat - operated flushing - devices for closets. SADERNE, G., 4, Rue Rabelais, Lyons, France. July 14, 1931, No. 20257. [Class 26.] When the seat is lowered from the position d, a flushing-valve l is opened through a lever f operated from the seat by means of rod i or a small chain etc.; the valve is closed and the seat returned, on withdrawal of the weight of the user, by means of a coiled spring g. The seat consists of two portions hinged together at j, so that the main part of the seat may be raised to the position d<11>.
Patent GB-316865-A (GB)
Title: Improvements in or relating to advertising and display devices
IPC: G09F13/06
Filed: 1929-07-02
Abstract: 316,865. Agahd, E. Aug. 3, 1928, [Convention date]. Signs; name plates and, the like.- The design bearing element of a sign is formed by means of two plates 3 perforated with sets of aligned apertures 5 which are placed in register with a sheet of paper &c. placed between them, the design being formed by making holes in the paper sheet by means of a punch. The plates and perforated paper are mounted in a casing 2 between the front 8 and a beading 7. The plates may be used only for the perforating operation the paper sheet being then mounted between glass sheets. Lamps 13 are mounted in the casing for illumination or light from above may be directed on to the sign by an inclined mirror.
Patent GB-663543-A (GB)
Title: Servo-mechanism for controlling the liquid fuel supply system of a prime mover, or other combustion apparatus
Inventor: HARRIS THOMAS ALFRED
IPC: F02M37/04
Filed: 1948-07-30
Abstract: 663,543. Electric correspondence control systems. LUCAS, Ltd., J. July 2, 1949. [July 30, 1948]. No. 20329/48. Class 40 (i). [Also in Groups XXIX and XXXV] A liquid-operated servomotor for controlling the fuel supply to a jet propulsion engine, gas turbine, air heater, or other combustion apparatus is itself controlled by a valve p actuated by an electromagnet or solenoid r the current to which is supplied through a pair of potentiometers v, u, one of which v is associated with a rectifier w, the movable contact y of one of the potentiometers u being adjusted by the servomotor and that of the other potentiometer v being adjusted manually or otherwise. Thus when the movable contact x of the potentiometer v is moved to increase the current through the solenoid r and so open the valve p against the action of a spring s, the movable contact y is moved by the servopiston h to reduce the current through the solenoid and so cause the valve p to be partly re-closed by the spring s. The contact x may alternatively be adjusted automatically say by a thermally responsive member. The battery t supplying current to the potentiometers may be replaced by thermocouple responsive to changes in temperature in the combustion chamber. The servo-piston h which operates a throttle valve e in a pipe c leading to the burners is supplied from a pump a which also supplies the burners. The throttle valve e is closed by a spring i.when the control valve p shuts off a drain passage m. In a modification, the servo-piston h controls a variable delivery fuel pump of the swashplate type.
Patent GB-499814-A (GB)
Title: Improvements in or relating to adhesives
IPC: C09J129/10
Filed: 1937-07-22
Abstract: An adhesive comprises an aqueous emulsion of one or more water-insoluble polyvinyl ethers of a sufficiently low molecular weight not to be of a waxy consistency, and another film-forming material or a filler.  Emulsifying agents may be used, e.g. albuminous materials such as bone and hide glue, and casein. There are specified: polyvinyl ethers-polyvinyl ethyl, n- and iso-propyl and -butyl ethers and mixed polymerizates; film-forming materials-natural or synthetic resins such as colophony, copal, and alkyd resins; fillers-iron oxide, chromium oxide, wood meal, asbestos powder.  In examples, an adhesive comprises polyvinyl iso-butyl ether and benzine, or polyvinyl ethyl ether, emulsified in ammoniacal casein.  Specification 402,513, [Group III], is referred to. According to the Provisional Specification, the adhesives comprise an aqueous emulsion of a water-insoluble polyvinyl ether.