baber/WOPTO huggingface dataset:
Patent GB-892509-A (GB)
Title: A device for modifying the shape of the envelope of an a-c signal as a predeterminedfunction of time
IPC: G05B19/07
Filed: 1958-09-11
Abstract: 892,509. Automatic control systems for aircraft. BENDIX CORPORATION. Sept. 11, 1958 [Oct. 1, 1957], No. 29186/58. Class 38 (4). [Also in Group XXXIX] In a method of limiting the torque produced by a motor in response to a rapidly varying control signal, alternating current delivered from X to Y over transformers 8 and 9 is made to appear gradually at Y, when switched abruptly at X, by means of a variable attenuator 3, 4, 24, 25, controlled by the output of a magnetic amplifier 103 the input to which is an exponentially increasing direct current produced by switching a D.C. source on to the R.C. network 1, 2, 5. The switches S1 S2 are ganged together.
Patent GB-364150-A (GB)
Title: A new device for sharpening razor blades and the like
IPC: B24D15/08
Filed: 1930-09-30
Abstract: 364,150. Sharpening razor blades &c. HOWES, G. H. N., 90, Marlborough Road, Stoke, Coventry. Sept. 30, 1930, No. 29217. [Class 60.] A device for sharpening razor blades &c. consists of a base G carrying two studs A to engage the holes in a razor blade, which is clamped down on to a bridge piece B by a swivel lever D, the edge of the blade not being sharpsned resting in a channel L. The blade is sharpened by a strop M having mounted thereon, in two swivelling eyes E a wire frame F, the ends of which are turned inwards and sprung into holes N in the base G. In operation, the strop is drawn over the blade edge, resting at the same time on the end of the base G.
Patent GB-603895-A (GB)
Title: Improvements in or relating to camera shutters
IPC: G03B9/10
Filed: 1945-11-03
Abstract: 603,895. Camera shutters. KERSHAW & SONS, Ltd., A., KERSHAW, N., and HUSBAND, H. R. Nov. 3, 1945, No. 29236. [Class 98 (i)] A camera shutter comprises an aperture plate 1 having pivoted thereon a blade 3 provided with a pin 6 which passes through a slot 7 in the plate 1, the shutter being retained in the closed position by means of a spring 4 which bears against the pin 6. A trigger 13 attached to a trigger plate 11 is pivoted at 12 on the plate 1, while a striker arm 14 pivoted to the trigger plate is held relative thereto by a catch 18 against the action of a spring 16. For instantaneous exposures depression of the trigger moves the trigger plate 11 and striker arm 14 in fixed relation until the striker arm 14 disengages from the catch 18 and flies back under the action of the spring 16, thereby causing an abutment 15, carried on the striker arm 14, to traverse the cam face 10 of a pivoted bell crank lever 8 which in turn causes a cam arm 9 thereof to slide against the shutter pin 6 and operate the shutter blade 3 which remains displaced according to the length of the cam arm 9. The bell crank lever.8 is formed with a bridge 20 so that on the upward movement of the trigger plate and the striker arm the abutment 15 thereof passes below the bridge. In order to obtain bulb and time exposures, the housing 2 of the plate 1 is fitted with an arcuate sliding member 21 having an inwardly directed arm 27 which co-operates with a time exposure lever 23, the latter being pivoted to the aperture plate at 26 and notched at 28, 29, thus providing two settings for the lever arm, the bulb seating at notch 28 whereat the position of the lever arm causes the striker arm 14 to be prematurely detached from the trigger plate and to contact the side of the bell crank lever at a point 22 thereby causing the shutter to remain open until the trigger is released, and the time setting at notch 29, whereat the lever arm is rotated into a position whereby the catch 18 on the trigger plate is engaged by the finger 24 of the lever 23, thus causing the shutter to remain open by virtue of the engagement of the abutment 15 with the cam face 10 until the trigger 13 is again operated.
Patent GB-391212-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/10
Filed: 1931-10-22
Abstract: 391,212. Knitting-machines. SPIERS, Ltd., W. and SPIERS, E., XL Works, Walnut Street, Leicester.. Oct. 22, 1931, No. 29336. [Class 74 (ii).] A multiple feeder circular rib machine of the superposed needle cylinder type having doubleended needles 1 operated by sliders 2, 2a is provided with means for forming a welt together with pattern means such that any or substantially any desired needle can be selected for forming purl stitches at a desired feeder or feeders. The pattern mechanism is preferably that of Specification 282,904, [Class 74 (ii), Knitting &c.], and the pattern bits 5a operate upon butts 11 on the lower sliders 2. The sliders 2 are arranged in such manner that sliders with short knitting butts 14 alternate with sliders having long butts 14, so that when the long butted sliders only are actuated by a transfer cam 22, 1X1 rib work is formed at the next feeder. The sliders 2a are arranged with two long butts alternating with two short butts, so that by actuating all sliders 2 and actuating only the long butted sliders 2a by the top transfer cam 21, 2 X 2 rib work is formed. Welt cams 23, 24 are provided, and are preferably controlled so that knitting may proceed on rib and plain needles alternately for a number of courses to form a French welt, or knitting may be suspended on either set of needles to form an English or roll welt. The knitting cams 17, 18 in the two cylinders are preferably adjustable to effect variations in the quality of the fabric. Yarn changing mechanism and trapping and severing devices as described in Specification 334,654, [Class 74 (ii), Knitting &c.], may be provided. Specifications 15008/00, [Class 74, Lace-making &c.], [and 24290/12, [Class 74 (ii), Knitting &c.], also are referred to.
Patent GB-383031-A (GB)
Title: Improvements in or relating to decoys
IPC: A01M31/06
Filed: 1931-10-22
Abstract: 383,031. Decoys. MIEVILLE, M. F., Dipley Mill, Hartley, Wintney, Hampshire. Oct. 22, 1931, No. 29350. [Class 5 (i).] A decoy comprises the model of a bird having a body portion 1 to the back of which are pivoted separate wings 5 formed from the feathers of an actual bird attached to curved metal strips 6. The wings are extended and retracted by an electric, compressed air or clockwork motor 7 which drives through reduction gearing a wheel 10 having a crank pin 12 to which are pivoted the ends of two arms 13, 13<1> connected at their other ends to bent levers 15, 151 attached by links 18, 181 to stirrups on the strips 6. The motor and gearing may be enclosed in the body of the decoy instead of in a casing below it and the body of an actual bird may be used, the wings being detached and mounted on pivots so that they may be actuated as above described. When a compressed air motor is used the device may be carried by a telescopic pipe supplying the air.
Patent GB-940277-A (GB)
Title: Improvements in semiconductor devices
Inventor: CARMAN JUSTICE NEALE
IPC: H01L23/31
Filed: 1960-08-25
Abstract: A semi-conductor device comprising a body with a PN junction, has metallic leads bonded to the surface of the body by a metallic bonding layer with a melting point of above 700 DEG C. and a non-conducting glass envelope with a fusing temperature above that of the bonding layer enclosing the edge of the PN junction. Fig. 1 shows a diode comprising a semi-conductor crystal 10 with a longitudinal PN junction, secured between two lead or terminal members <PICT:0940277/C3/1> <PICT:0940277/C3/2> each comprising a core 14 of W, Mo, or an Fe-Ni-Co alloy with a coating 15 of Rh, Pt, Pd, Ir, Os, Au, Ag or alloys thereof.  This coating may be applied by evaporation deposition or spattering, or electroplating and sintering to close the pores; a Co or Ni coating may be applied first.  The coated terminal is bonded to the crystal by a layer 18 of Ag, Pt, Pd or alloys thereof fusing above 700 DEG C.  Examples of such alloys are 5-15% Au+ 95-85% Ag or Ag with 5 to 25% Pt or Pd; bonding is effected by pressure and heating in nitrogen, argon or helium to 900 DEG  to 1050 DEG C., the material being provided in the form of a disc, fine powder or plating.  Alternatively layer 15 may also function as the bonding material which may contain 1-5% of donor or accepted material. After welding, the edge of the crystal is etched, layer 15 protecting the terminals.  A glass envelope or layer 19 is then provided about the edge of the crystal and bonded to the terminals. If desired an oxide coating may be provided on the semi-conductor before the glass is applied by heating in nitrogen and water vapour. Fig. 4 shows a similar arrangement applied to a PNP transistor.  In this case, an annular emitter electrode 43 is provided on the additional P-layer, the central base electrode 45 being applied to the middle N-layer and the space between emitter and base terminals being filled with glass.  In a further transistor embodiment, the base is provided by an annular electrode surrounding the emitter electrode which also comprises a built in section of semi-conductor which being connected in series with the emitter, acts as a temperature variable resistor to compensate changes in the wafer characteristics.  A photo-sensitive diode device comprising a PN junction with an annular electrode on one face and a protective glass window is also described.
Patent GB-1391353-A (GB)
Title: Windscreen wipers for vehicles especially motor vehicles
IPC: B60S1/08
Filed: 1972-06-23
Abstract: 1391353 Windscreen wipers ROBERT BOSCH GmbH 23 June 1972 [26 June 1971] 29457/72 Heading A4F [Also in Division H2] A windscreen wiper arrangement for a vehicle comprises a pair of wipers 17, 18 drivable under the control of a manually operable switch by separate motors 11, 12 in such a way that one wiper 18 is retained in its parked position (shown) until the other wiper 17 has been driven from its parked position (shown) to its opposite reversal position 19', the wipers 17, 18 then being driven in synchronism until the switch is moved to its "off" position, this actuation causing the wiper 17 upon next reaching its parked position to remain there while the wiper 18 returns to and remains in its parked position. The motors 11, 12 are controlled by a circuit comprising rotary switches Fig. 2, (not shown) connected between the motors 11, 12 and a battery (50) of the vehicle. The motors 11, 12 may be arranged under the control of a further switch (73) Fig. 3, (not shown) to drive the wipers at high or low speeds.
Patent GB-1088941-A (GB)
Title: Electrical circuit arrangements
Inventor: WATTERS ALFRED STEPHEN
IPC: H03F3/387
Filed: 1964-07-22
Abstract: 1,088,941. Converting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 30, 1965 [July 22, 1964], No. 29591/64. Heading H2F. A direct voltage is inverted, passed through a transformer and then rectified to provide D.C. isolation on a control link. As shown in Fig. 3, the switching elements are four diode switches controlled by a single alternating reference voltage. The inverter and rectifier operate synchronously. To give a smooth output without the long time constant a smoothing circuit would introduce the circuit is modified as shown in Fig. 4. The rectifying bridges have their reference voltage passed through parallel RC circuits so that the control current is pulsed. The output is a series of pulses (two per reference voltage cycle) which is smoothed by a circuit having a time constant of about ten reference voltage cycles.
Patent GB-1454740-A (GB)
Title: N-sulphenylated carbamates and their use as pesticides
IPC: A01N47/24
Filed: 1975-07-15
Abstract: 1454740 N - Sulphenylated carbamates BAYER AG 15 July 1975 [16 July 1974 25 Sept 1974] 29643/75 Heading C2C The invention comprises N-sulphenylated carbamates of the formula (I) in which R<SP>1</SP> is dialkylamino with 1-4 carbon atoms in the alkyl part, or phenyl substituted in the o- or m-position by halogen or alkyl with 1-4 carbon atoms, or phenyl substituted in the o-, m- or p-position by NO 2 , CF 3  or CN, and R<SP>2</SP> is phenyl, naphthyl, benzodioxolanyl or indanyl, all of which may optionally be substituted by alkyl, alkenyl, alkynyl, alkoxy, alkenoxy, alkynoxy, alkylmercapto, alkenylmercapto, alkynylmercapto, dialkylamino, trihalogenomethyl, halogen, nitro, cyano, cycloalkyl, formamidino, dioxanyl or dioxolanyl, or is a radical of the formula in which R<SP>3</SP> and R<SP>4</SP>, which may be identical or different, are each alkyl, alkoxy, alkylthio, cyano or alkoxycarbonyl, it also being possible for the alkyl groups in R<SP>3</SP> and R<SP>4</SP> to be bonded to one another, or, provided that R<SP>1</SP> represents NO 2 -substituted phenyl, R<SP>3</SP> and R<SP>4</SP> may form an optionally alkyl-substituted dihydrobenzofuranyl radical. They may be obtained by reacting a carbamic acid fluoride of the formula with a compound of the formula Insecticidal, acaricidal or nematicidal compositions comprise the compounds of Formula I above in admixture with a solid, liquid or liquefied gaseous diluent or carrier, or other active compounds. These compositions may be used to protect crop areas from insects, acarids or nematodes. Specific compounds of Formula II above wherein R<SP>1</SP> is o- or m-nitrophenyl, o-tolyl or mchlorophenyl may be obtained by reacting the appropriately substituted benzene sulphonic acid methylamido-sulphene chloride with N- methyl carbamic acid fluoride. The said sulphene chlorides may be obtained by treating the appropriately substituted benzenesulphonic acid methylamido-disulphide suspended in CCl 4  with Cl 2 . Finally, the said disulphides may be obtained by treating the appropriately substituted benzenesulphonic acid methylamide suspended in CCl 4  with disulphur dichloride.
Patent GB-760945-A (GB)
Title: Head box for paper making machines
IPC: D21F1/02
Filed: 1953-10-27
Abstract: 760,945. Flow - boxes of paper - making machines. BLACK-CLAWSON CO. Oct. 27, 1953 [Nov. 6, 1952], No. 29647/53. Class 96. Paper pulp from inlets 32 feeding a transverse pipe 30 in the concrete base 28 of a flowbox of a Fourdrinier paper-making machine, flows upwardly at 33, past a flow-evener roll and a first, approximately stream-lined baffle 97, over a baffle-wall 37 (which is sectional to allow height variations) and past a second baffle 97 and second flow-evener roll, 102, to the outlet, the upper lip 46 of which is adjustable locally by a series of nuts 79, &c. across the machine, and adjustable generally by hand wheels 68, and worm gearing &c. (not shown, Fig. 3). The entire front wall 42 is pivoted at 51 and has limited adjustment about such pivot, and the curvature of the lower part of the said wall 42 is adjustable by a series of turn-buckles &c. 77, which also act as stiffeners against vibration of this part of the wall.
Patent GB-821861-A (GB)
Title: Improvements in or relating to heat transfer systems in nuclear reactor fuel elements
Inventor: HALL WILLIAM BATEMAN
IPC: F28F13/06
Filed: 1956-09-28
Abstract: 821,861. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Sept. 17, 1957 [Sept. 28, 1956], No. 29648/56. Class 39(4). Transverse fins of a fuel element are deflected in part, thereby promoting turbulance to increase heat transfer. Alternate segments 25 may be bent in the direction 22 of flow of fluid along a channel 21, the remaining segments 24 being bent in the opposite direction. The fins may or may not be slotted as shown at 23. After bending, the blade tips 29 are removed to a line 30, so that a cutting edge is presented to fluid flow.
Patent GB-266448-A (GB)
Title: Improvements in or relating to means for handling freight
IPC: B65D90/00
Filed: 1925-11-24
Abstract: 266,448. Marks, E. C. R., (Motor Terminals Co.). Nov. 24, 1925. Vehicles with removable bodies.-Relates to a system of transporting freight loaded in containers which can be transferred between motor vehicles and railway wagons. A number of such containers 12 placed side by side are supported upon a tray 25, 26 and transferred to the vehicle as one unit. The containers are held in position by the end and side walls 14 of the tray, and the walls are high enough to prevent opening of the doors 13 during transit. The containers are loeked together near the top by levers 19 engaging pins 18. The containers and the tray are provided with eyes 16, 31 for attachment to hoisting chains. One loaded tray is carried upon a motor lorry, or two upon a railway wagon, the trays being held in position by corner pieces upon the vehicles. The doors 13 may be at one or more sides of the containers.
Patent GB-285986-A (GB)
Title: Improvements in or relating to elastic fabric
IPC: D03D15/56
Filed: 1926-11-24
Abstract: 285,986. Sokal, S., (Thoren, Reichert, & Co., Akt.-Ges.). Nov. 24, 1926. Elastic fabrics; napped fabrics. - An elastic webbing having rubber threads is provided with a nap on its surface by passing it preferably in a highly-stretched condition and several times through a roughing or napping machine. The webbing may be used for garters, hose supporters safety belts and garments. The fabric may be woven with inelastic warp threads 10, inelastic weft threads 11, 12 and elastic warp threads 14, or it may be knitted or plaited.
Patent GB-1131948-A (GB)
Title: Dental appliance
IPC: A61C13/225
Filed: 1966-07-01
Abstract: 1,131,948. Artificial teeth. J. J. SIMMONS. 1 July, 1966, No. 29776/66. Heading A5R. A dental appliance comprises artificial teeth 26a secured to a lingual member 30 which is shaped to fit behind remaining abutment teeth and is able to be held to the abutment teeth by a labial bar 40 which is pivoted to the member 30 by a hinge 45 and can be secured to the member 30 by a catch 50, 71. The appliance is formed by making a wax mock-up (Figure 3, not shown) including a preformed metal hinge part (Figure 4, not shown) and catch part (Figure 5, not shown), the lingual member 30 and labial bar 40 being shaped in wax about the metal parts on a model of the patient's mouth and then a mould made from the mock-up is used to cast in metal the dental appliance itself. The hinge and catch parts are initially provided with removable handling members (49a, 49b, 58a, 58b, Figures 1 and 2, not shown) and a special jig (60, Figure 3, not shown) is used to align the parts in the mock-up. The hinge part is provided with formations (46a, 46c) to aid in keying the part to the member 30. Alternative hinge and catch parts are illustrated in Figures 17 and 27 (not shown), the hinge part being provided with a separate handling member (Figure 20, not shown). These alternative hinge and catch parts may be provided in a plastics material as patterns which are used to ,make a mould from which the actual metal parts are cast. As shown, the lingual member 30 is connected to two side parts in the form of cast metal skeletons (Figure 3, not shown) and the lingual member, the two skeletons, and the labial bar 40 are covered with plastics material 85, 86, 90 to imitate gum tissue and with further artificial teeth 88, 89.
Patent GB-337546-A (GB)
Title: An improved triangle for use in placing the balls for the games of snooker, pyramids and other billiard games
IPC: A63D15/00
Filed: 1929-10-02
Abstract: 337,546. Farnfield, H. J. Oct. 2, 1929. Billiards, triangles for. - A triangle for use in positioning the balls s in snooker, pyramids, and other billiard games is provided with a grooved and bevelled surface x, the groove being lined with a reflecting material such as aluminium or glass to throw the light on to the spot.
Patent GB-1133331-A (GB)
Title: Improvements in or relating to fusible inter-linings and the like
Inventor: ROSE HAROLD
IPC: D06M17/04
Filed: 1964-07-28
Abstract: 1,133,331. Discontinuous coatings. STAFLEX INTERNATIONAL Ltd. 27 Oct., 1965 [28 July, 1964], No. 30011/64. Heading B2E. Fusible interlining material for use in garment manufacture is prepared by applying to a flexible substrate spaced deposits of an aqueous dispersion of a heat sensitive bonding agent, such dispersion having a viscosity such that when deposited on a surface in the form of dots in the range of 0.01-0.20" diameter retain a height of 0.002-0.02" and then drying said deposit to consolidate the heat sensitive bonding agent and thus leave a coating of spaced deposits of heat sensitive bonding agent heated to the surface of said substrate, the heat sensitive bonding agent in the dried-spaced deposite softening and becoming adhesive at a temperature of 80‹-170‹C. The dispersion may be rendered] viscous by addition to the solution of a water soluble thickening agent. The spaced deposits may be applied by causing the dispersion to flow through the apertures of a screen onto a web of the substrate or by the use of gravure rollers or other painting devices. Alternatively deposits may be painted on an intermediate carrier roll, belt or web and then transferred onto the substrate. A bonding agent may be a synthetic resin derived from a vinyl acetate, polymers and copolymers of vinyichloride, vinyl acetals, vinylidene chloride, acrylic esters, styrene, butadiene, olefines and polymers such as polyamides and polyesters. Specified are copolymers of styrene and butadiene, styrene and acrylonitrile, ethylene and vinyl acetate, neoprene, butyl rubber, urethane rubbers and natural rubbers. Modifying resins may be incorporated such as resins, modified resins, alkyds and modified alkyds, phenylformaldehyde resins and natural resins such copals and dammars, plasticisers such as dibutylphthalate, phosphate plasticisers and polymeric plasticisers may be used, a water-soluble thickening agent may be used for example sodium carboxy methyl cellulose, sodium polyacrylate, polyvinylalcohol. Water-soluble thickness such as colloidal kaolins may be also be present. The deposits may be flattened by lightly calendering before or immediately after drying.
Patent GB-1484548-A (GB)
Title: Word game
IPC: A63F3/02
Filed: 1976-07-20
Abstract: 1484548 Word game FENSMORE PtY Ltd 20 July 1976 [22 July 1975] 30066/76 Heading A6H  A word game comprises counters marked with letters of the alphabet, at least three, boards, one above the other, and a number of locations on each board, each marked with a score.  The upper board can be lifted up and replaced in a different position on pegs 20. The boards are transparent. The counters are in colour-distinguishable sets of 64. Each player has a coloured card with the square-scores marked thereon.
Patent GB-1496754-A (GB)
Title: Light-beam-deviating optical equipment
IPC: G02B7/00
Filed: 1976-07-20
Abstract: 1496754 Improvements in beam-splitters SAMEFA AB 20 July 1976 [25 July 1975] 30081/76 Heading G2J An optical assembly, Fig. 10, for generating light beams accurately at right angles to each other incorporates a beam splitting prism, Fig. 7, comprising two semi-quadrangular prisms 52 and 54 forming a single quadrangular prism 55 having a reflecting surface 56 at or adjacent one surface, oriented such that part of the incident beam 58 is internally reflected by the diagonal interface 53 of the two prisms, reflected beam 59 then being reflected by surface 56 so that it emerges from the prism 62 exactly at right angles to the incident beam, regardless of the rotation of the quadrangular prism 55. Preferably reflecting surface 56 is spaced apart from the prism and is in an adjustable position relative to the prism surface and this may be adjusted to compensate for inaccurately ground prisms. The complete prism assembly 80 may be detachable from the base 78 and may also be rotatable about an axis which coincides with the path of the incident beam.