baber/WOPTO huggingface dataset:
Patent GB-286403-A (GB)
Title: Improvements in motor operated valve gearing
IPC: F16K31/05
Filed: 1926-12-31
Abstract: 286,403. Babcock & Wilcox, Ltd., and Jacob, K. B. Dec. 31, 1926. Electrically -actuated valves. - In electricmotor operated valves of the parallel slide gate type actuated by means of a train of induction gearing between the motor E and the valve, including an automatic cut-out to stop the motor in the fully open and closed positions, the valve spindle A is actuated bv a crank B and connecting rod C with cross-head D. The dead centre positions of the crank coincide with the fully open and closed positions so that in operating the cut-out switches H, H' at the limit positions the motor may over-run a considerable number of revolutions. Furthermore, a motor of small starting torque can be used since the valve is opened very slowly at first and the motor is able to get up speed for the main part of the opening movement.
Patent GB-211610-A (GB)
Title: Improvements in means for use in or in connection with the launching of ships
IPC: B63B9/00
Filed: 1922-12-05
Abstract: 211,610. Share, M., Kidd, C., and Ranson, W. Dec. 5, 1922. Dash-pots.-A fluid-friction 'braking-apparatus is used to control the movement of a ship down the slipway during launching and to bring it to rest after flotation. The movement of the ship unwinds a cable 3 and rotates the loose drum 1. This movement is transmitted through chain gearing and a countershaft to the shaft 2, thus rotating a vaned paddle 5 in the same direction as, and at a higher speed than, the drum. The drum is filled with liquid and the paddle works in close proximity to the periphery of the drum and to the surfaces of vaned end chambers 7, the arrangement being such that only a limited space is available for the passage of the liquid past the vanes, the result being a powerful braking effect on the drum. By manipulating two plates 18, 19, so as to bring holes therein more or less into register, the braking effect can be varied at will. The plate 18 is turned whenever a shaft 22 is rotated by engaging a quadrant 28. The quadrant is geared to the shaft 2 so as to lag behind the shaft to the extent of one tooth per revolution of the shaft. Thus at every interval of a predetermined number of revolutions, the quadrant will contact with the pinion 23 which is rotating bodily with the slower moving casing. This effects an intermittent movement of the plates, which can be used to give a gradually increasing braking effect. The vanes on the paddle are V-shaped in the direction extending across the periphery of the paddle, each pair of vanes being interconnected or shrouded by curved plates 6. The side chambers are vaned similarly and shrouded bv plates 8. A fluid-friction brake of the type described in Specification 200,653 may be added to the present apparatus.
Patent GB-486204-A (GB)
Title: Improvements in or relating to light sensitive electron discharge tubes
IPC: H01J29/62
Filed: 1936-12-03
Abstract: 486,204. Image intensifiers. ZEITLINE, V., ZEITLINE, A., and KLIATCHKO, V. Dec. 3, 1936, No. 33195. Convention date, May 5. Drawings to. Specification. [Class 39 (i)] The electron image is focused onto the fluorescent screen by an anastigmatic lens comprising a main focusing electrode and an auxiliary electrode surrounding the main one and correcting focusing errors of the marginal rays. The main electrode may be a cylinder and a ring electrode may surround one end of the cylinder ; two such rings may be used, one at each end of the cylinder. An accelerating electrode may be disposed between the lens and the screen. The parts of the lens are at potentials intermediate those of the cathode and the accelerating electrode. The Specification as open to inspection under Sect. 91 contains also the subject-matter of Specification 488,416. This subject - matter does not appear in the Specification as accepted.
Patent GB-1242666-A (GB)
Title: Improvements relating to fishing lures
Inventor: DAY VIVIAN
IPC: A01K85/08
Filed: 1969-07-02
Abstract: 1,242,666. Fishing lure. V. DAY. 21 May, 1970 [2 July, 1969], No. 33360/69. Heading A1A. A fishing lure comprises a hook on whose shank is bound a double strip of material 10 by means of monofilament 11. The free ends of the strip 10 are cut obliquely in opposite directions thereby having the appearance of a fish tail.
Patent GB-420467-A (GB)
Title: Improvements in or relating to electric heating devices
IPC: H05B3/72
Filed: 1933-12-01
Abstract: 420,467. Making electric heating- elements. BACKER, C. B., Victoria Buildings, Ottawa, Canada. Dec. 1, 1933, No. 33834. Convention date, Feb. 14. [Classes 83 (ii) and 83 (iv)] [See also Group XXXVI] Stamping.-One or more electric heating- elements 10 provided with metal sheaths are enclosed between grooved metal sheets 13, 14 welded together. The metal sheets are of nickel-chromium or iron-nickel-chromium alloy, or of a metal known under the Registered Trade Mark " Monel." The element is bent into approximately the correct form and then pressed to the exact form between grooved dies. The depth of the grooves is slightly less than the radius of the element sheath so that the element is flattened by 0À005 to 0À015 of an inch. The depth of the grooves in the metal sheets is less than the depth of the grooves in the dies so that the sheets are drawn over the element. A final pressing to secure further flattening of the element by 0À005 of an inch may be effected after welding.
Patent GB-501222-A (GB)
Title: Improvements in or relating to machines for cutting grass
IPC: A01D34/63
Filed: 1937-12-07
Abstract: 501,222. Mowing - machines. COCKBURN, D. H. Dec. 7, 1937, No. 33905. [Classes 6 (ii) and 6 (iii)] In a mowing-machine of the type in which a cutter covered by a casing rotates about a substantially vertical axis, the casing having supporting means at its front and rear, the supporting means are coupled together mechanically so as to be simultaneously adjusted relatively to the casing by a common regulating device. The internal combustion or electric motor 13 is accommodated in a recess 12 of the casing 10 which has parallel vertical sides 40, 41, extending into a semicircular front. The shaft 14 is approximately vertical and carries a holder 15 for steel disc cutters 19, 20, which is formed with impeller blades 17, 18 to create an upward current of air to carry the cut grass through the casing to a grass box 21. The casing is supported at its front end upon a pair of wheels 23 mounted in a U- shaped member 24 of which the sides are pivoted on lugs 26 projecting from the casing. The rear part of the casing is supported by a roller 27 mounted in levers 29 which are secured by pivots 30 to the casing and are coupled at their forward ends by a pin-and-slot connection to the rear ends of the arms of the U-shaped member 24. A hand operated screw 32 threaded through a lug on the front of the casing and engaging the cross-piece of the member 24 adjusts the front wheels and the rear roller simultaneously. A transverse brush 37 is fixed to the rear of the machine : the brush is pivoted at one end and its other end provided with a slot through which a stud passes so that the brush may be clamped in a tilted position.
Patent GB-211999-A (GB)
Title: Improvements in and relating to the spring suspension of vehicles
IPC: B60G7/02
Filed: 1922-12-15
Abstract: 211,999. Farnsworth, F. S. Dec. 15, 1922. Gearing with provision for permitting flexure.-The driving wheels of a motor vehicle are carried on stub axles m on spring-controlled crank arms d<1> secured to, or integral with, sleeves b<1> mounted on a fixed cross-tube a<1> and rotating in bearings f<1> on the chassis e. The tube a<1> comprises two portions secured to the differential casing k and the wheels are driven from the shaft l by gear wheels n or chain gearing.
Patent GB-212651-A (GB)
Title: A combined electrical, gas & mechanical burglar alarm
IPC: G08B13/00
Filed: 1922-12-15
Abstract: 212,651. Couch, C. Dec. 15, 1922. Retractive switches; flexible pulls. - In a burglar alarm system employing both mechanical and electrical means for giving an alarm, a system of stretched wires is led over premises to be protected and connected to pushes. A push MF, depression of which strains a wire E to give the alarm, is shown in Fig. 7, and the toe 2 of the lever may depress an electric bell push. The push MF may be operated bv sliding drawers, by the opening of doors, &c., and may be placed under mats. An arm for attachment to drawers is shown in Fig. 12, the hollow 2 fitting over the push MF. An electric bell push may be operated by a lock through a lever 3, Fig. 13, one end of the lever fitting into a notch in the bolt of the lock so that, when the bolt is withdrawn, the ball end of the lever operates a push F in the door-casing.
Patent GB-644461-A (GB)
Title: Improvements in or relating to setting apparatus for textile fabrics
IPC: D06C5/00
Filed: 1947-12-29
Abstract: <PICT:0644461/IV (c)/1> A setting apparatus comprises a retort 15 having a door opening 27a, a reversible <PICT:0644461/IV (c)/2> <PICT:0644461/IV (c)/3> door 45 which can be bodily moved within the retort and also about a vertical axis for closing said opening with either face of the door directed outwardly, and forms mounted on both faces of said door for supporting textile articles.  The retort is made up of two shells 19, 20 between which is heat-insulating material 22. High pressure steam is introduced through an inlet pipe 31 below a distributer plate 32.  A steam outlet pipe 36 passes through the top while an exhaust pipe 37 is connected to suction apparatus. The outlet pipe 38 leads to pressure relief valves 39. The forms 46 may be tilted away from the body of the door when they are on the outside of the retort.  The door may be held closed by the pressure of the steam or by the latch arrangement 82.  The door 45 is guided in its movements by a guide member 91, the bracket 96 (Figs. 7 and 9, not shown), and the guide member 97 before being reversed in the retort by rotation about its own axis.  A sheet metal air chamber 101 connected to an air circulating motor provides means of circulating cool air towards the operator's position.  The valves for admitting and exhausting steam to and from the chamber are electrically controlled solenoid operated valves which are controlled by a door-operated switch.
Patent GB-505385-A (GB)
Title: Improvements in chains
IPC: F16G13/16
Filed: 1937-12-13
Abstract: 505,385. Tubular chains. WILKINS & WRIGHT, Ltd., and HEWITT, J. H. Dec. 13, 1937, No. 34408. [Class 24] A chain, particularly for the suspension of electric light fittings, comprises links 10, Figs. 1, 3, flexibly hooked together and tubular cover members 16 adapted to be mounted on the links and of such a length as to close the opening of the hooks without affecting the flexibility of the chain. As shown the links 10 may be formed of strip material with a hook 12 at one end and a slot 11 or hook at the other, so that when hooked together they lie alternately in planes at' right - angles. Alternatively, the links may be twisted so as to lie in one plane and may be made of wire bent to S or C-shape. The tubular covers may be of cylindrical, barrel or spherical shape and the internal and external crosssection may be circular or polygonal. They may be made in one or several parts and provided with means for attaching ornamental additions. To maintain the covers in position to allow free movement of the joints, when the chain is hanging vertically, the links are provided with projections 17 at their lower ends. In use as an electric light suspension, the upper end of the chain is connected to a ceiling plate 18 by a U-shaped member 19 and pin 20 passing through the slot 11 at the upper end of the top link 10. The lower link is connected to a tubular fitting 21 by a short link 23 secured thereto by a rivet 24.
Patent GB-1517578-A (GB)
Title: Material for use in thermographic recording processes or transfer dry-copying processes
IPC: C07C45/00
Filed: 1975-08-19
Abstract: 1517578 Photographic and thermographic materials AGFA-GEVAERT 19 Aug 1975 [24 Aug 1974] 34432/75 Heading G2C [Also in Division C2] A material for use in thermography or as the receiving sheet in a dry-copying process in which a reducing agent is imagewise transferred thereto comprises a self-supporting or supported layer or layers containing a non-photo-sensitive reducible silver salt and a reducing agent of formula wherein R<SP>1</SP>, R<SP>3</SP> and R<SP>5</SP> are H, C 1-9  alkyl, or cycloalkyl, but R<SP>1</SP> and R<SP>5</SP> are not both H, R<SP>2</SP> is C 1-4  alkyl or cycloalkyl, R<SP>4</SP> is H, C 1-4  alkyl or cycloalkyl, and wherein R<SP>1</SP> and R<SP>2</SP> together R<SP>2</SP> and R<SP>3</SP> together, or R<SP>4</SP> and R<SP>5</SP> together may be an alkylene group to complete a 6-membered ring; with the proviso that R<SP>1</SP>, R<SP>3</SP> or R<SP>5</SP> is not t-butyl if the respective adjacent substituent(s) is or are alkyl; and optionally a toning agent. Preferably, the reducing agent is present in amount of 0À073-3 moles per mole of Ag salt for thermography and from 0À2-1À5 moles per mole of Ag salt for the dry-copying process. Specified toning agents are a phthaliazinone, aphthalimide or a benz or naphthoxerindione. In the examples, a support is coated with a layer of binder, Ag stearate, reducing agent, toning agent and ZnO to produce a receiving sheet which is placed in contact with an imagewise exposed photo-sensitive material with 4-methoxy napthol reducing agent and heating to transfer the remaining naphthol to the receiving sheet and produce a Ag image. Alternatively, a support coated with binder, Ag stearate, reducing agent, toner, ZnO and stearic acid is imagewise exposed to heat to produce a Ag image.
Patent GB-1007614-A (GB)
Title: A transistor amplifier
IPC: H03F3/30
Filed: 1962-09-07
Abstract: 1,007,614. Electric analogous calculating. SIEMENS-SCHUCKERTWERKE A.G. Sept. 7, 1962 [Sept. 8, 1961], No. 34441/62. Heading G4G. [Also in Division H3] An amplifier (see Division H3) is used as a coupling arrangement in an analogue computer for determining the torque of an electric machine which solves the equation where Mα is the torque,. U is the armature voltage, J the armature current, J<SP>2</SP>R is the heat loss in the armature and n is the speed of the machine. J<SP>2</SP>R is positive or negative depending on whether the machine is operated as a generator or motor. In Fig. 2 a voltage U representing the machine volts is applied to the winding of a magnet HM1 having the Hall plate HG1 in its air gap. A constant current SK1 is applied to one pair of plates of the Hall device and the Hall output is taken through an amplifier V1 and applied to one pair of electrodes of a second Hall device HG2. This device is located in the gap of a further magnet HM2 having a coil carrying the armature current so that the output from the plate represents the term UJ. Also located in the gap in magnet HM2 is a further Hall device HG3 having one pair of plates fed with a constant current SK2 and having its output fed through amplifier V3 to yet a further Hall device HG4 located in the gap in magnet HM2 and the output from HG4 ,  represents the term J<SP>2</SP>R. This is amplified at V4 and combined at K1 with the UJ term to produce the numerator of the expression. The speed term n is fed to the winding of a magnet HM3 in the air gap of which is located a Hall device HG5 the output of which is amplified at V5 and mixed with the numerator term at K2. This is then amplified at V6 and fed back to the input plates of the Hall device HG5 so that a meter A will show a quotient of the numerator and denominator and thus the desired function Mα. The amplifiers V1-V5 are in the form of transistor long-tailed pairs feeding an output stage comprising two transistors of opposite conductivity type connected in series (Fig. 1, not shown).
Patent GB-1434522-A (GB)
Title: Ink jet printers
IPC: G01R29/24
Filed: 1974-08-06
Abstract: 1434522 Ink-drop printers INTERNATIONAL BUSINESS MACHINES CORP 6 Aug 1974 [17 Aug 1973] 34475/74 Addition to 1417919 Heading G4H In an ink jet printer, electrical signals are electrostatically induced in a sensor device by passage of a stream of charged ink drops, the sensor device including two conductive elements exposed towards the path of the stream and surrounded by a grounded outer conductive element. The said two conductive elements are connected to respective inputs of an FET operational amplifier which is A.C. coupled to another amplifier which feeds a strobed threshold device the output of which may control synchronization of drop formation with drop charging. The sensor device may consist of a laminated structure of conductive layers interleaved with insulating layers, the conductive layers being an innermost layer forming one of the said two conductive elements, two outermost layers forming the grounded outer conductive element, and two intermediate layers between the innermost and outermost layers forming the second of the said two conductive elements, the ink drop stream passing through a hole in the laminate perpendicular to the layers. A second construction has cylindrical layers, the innermost being a hollow or solid cylindrical rod, this sensor being of the probe type. A third construction is of the probe type, being formed as a planar structure on a substrate. Sensors as above may be used to measure ink stream velocity, to verify and control correct deflection, or to detect stream failure (the unused drops being slightly charged to permit this).
Patent GB-619242-A (GB)
Title: Improvements in dental amalgam carriers
IPC: A61C5/62
Filed: 1946-11-21
Abstract: 619,242. Dental amalgam carriers. SMITH, R. A. (White Dental Manufacturing Co., S. S.). Nov. 21, 1946, No. 34493. [Class 81 (ii)] In a dental amalgam carrier the reciprocating plunger 18 is connected to the operating rod 14 by a section of inextensible flexible shafting 17 comprising an axial core wire 19 which prevents extension and coiled layers 20, 21 and 22 which prevent axial compression of the section. The tubular handle 1 has a collar 2 on which is mounted the barrel 3 which carries the plunger 18 in its laterally-bent end portion 4. The handle is provided with an adjustable gland 7 serving as an abutment for a nut 15 on the rod 14 to vary the position of the plunger 18 in the nozzle 5, the nut 15 being forced into engagement with the gland 7 by a spring 16 when the button 12 is released.
Patent GB-940464-A (GB)
Title: Improvements in or relating to the production of alkali or alkaline earth metal borohydrides
Inventor: JENKNER HERBERT
IPC: C01B6/00
Filed: 1961-09-26
Abstract: An alkali or alkaline earth metal borohydride with or without an alkyl substituent radical together with an ester of silicic or organo-silicic acid are produced by reacting a silicon hydride compound containing no halogen, an ester of boric acid, polyboric acid, or mono- or dialkyl boric acid, and a metal hydride compound or alkali or alkaline earth metal and hydrogen. The reaction may be effected at 50-250 DEG  C. and under superatmospheric pressure, e.g. 5-20 atoms.  The silicon hydride compound is a compound of general formula RxR1ySiH4-(x+y), where x+y is 0 to 3, R and R1 are alkyl or aryl and R1 may also be alkoxy, e.g. monosilane, methyl, ethyl, propyl or diethylsilane. The metal hydride compound is an alkali or alkaline earth metal hydride, e.g. NaH or KH, or a complex thereof with organoboron and organo-aluminium compounds, e.g. sodium hydride boron-trialkyl, or aluminium, mono-, di-, or tri-alkyl, or sodium hydride-boric acid ester.  Where complexes are used two reactants may be introduced in combination.  The methyl ester of boric acid is preferred. The reaction may be in the presence of amines, e.g.5-30 mol. per cent, or ethers, e.g. triethylamine, tripropylamine, diethylmethylamine, ethyldibutylamine or mixtures thereof, diethyl ether, diethylene glycol dimethyl ether, tetrahydrofuran.  Diluent liquids may be used, e.g. aliphatic or aromatic hydrocarbons, silicon hydride compound, or silicic acid ester such as decane, mineral oil, or ethyl silicate.  Where a tertiary amine is used the examples refer to the formation of N-trialkylborazane.ALSO:An alkali or alkaline earth metal borohydride with an alkyl substituent radical is made by the reaction of a silicon hydride compound containing no halogen, an ester of mono- or di-alkyl boric acid and a metal hydride compound or alkali or alkaline earth metal and hydrogen. The reaction may be affected at 50-250 DEG C. at 5-20 atmospheres pressure.  The silicon hydride compound is of the type RxR1ySiH4-(x+y) where x + y is 0 to 3, R and R1 are alkyl or aryl and R1 may also be alkoxy, e.g. monosilane, methyl, ethyl, propyl, or diethylsilane.  The metal hydride compound is an alkali or alkaline earth metal hydride, e.g. NaH or KH, or a complex thereof with organoboron and organo-aluminium compounds e.g. sodium hydride boron trialkyl, sodium hydride-boric acid ester or sodium hydride aluminium mono-, di- or trialkyl.  Where complexes are used, two reactants may be introduced in combination. The reaction may be in the presence of amines, e.g. 5-30 mol per cent, or ethers e.g. triethylamine, tripropylamine, diethylmethylamine, ethyldibutylamine or mixtures thereof, diethyl ether, diethylene glycol dimethyl ether, tetrahydrofuran.  Diluent liquids may be used e.g. aliphatic or aromatic hydrocarbons, silicon hydride compounds or silic acid esters e.g. decane, mineral oil, or ethyl silicate. Where a tertiary amine is used the examples refer to the formation of N-trialkylborazane.
Patent GB-210934-A (GB)
Title: Improvements in and relating to machines for dressing wooden floors, decks and like surfaces
IPC: A47L11/08
Filed: 1922-12-19
Abstract: 210,934. Brown, M. Dec. 19, 1922. Planing.-A rotary planing tool or sand-paper drum for a floor or deck is provided with supporting means immediately behind the tool b, such as a roller c grooved circumferentially to facilitate the avoidance of ridges. The roller is carried in universal ball bearings i, to allow play on curved surfaces, and the brackets e are adjustable as shown. Spring brackets, Fig. 9, are used in the case of a sandpaper drum. The front support of the carriage comprises two rollers k separated laterally. For use on planks a front roller r may be added, carried on adjustable arms r<1>.
Patent GB-914991-A (GB)
Title: Improvements in convertible sofa-beds
IPC: A47C17/22
Filed: 1960-10-10
Abstract: 914,991. Bed settees. CASTO CONVERTIBLE CORPORATION. Oct. 10, 1960, No. 34671/60. Class 52 (2). In a bed settee, a link mechanism allows the folding of the bed sections to be almost completed before they are lowered rearwardly beneath the seat. As shown, the inner section 24 is carried on arms 26 and 34 which turn about pivots 30 and 40 respectively to lower the folded sections rearwardly. Arm 26 is held in the horizontal position by the rearward thrust of link 59. This is produced by tension in links 72, 74 tending to turn arm 64 anticlockwise about pivot 65 and plate 80 clockwise about pivot 82. Plate 80 is prevented from rotating by the engagement of pin 84 with one end of slot 88 in link 90. On raising front section 48 to the vertical, it engages flange 102 of plate 80 and begins to turn the plate about the pivot 42 of centre section 44. As the front section 48 is lowered into the horizontal inverted position, arm 64 begins to turn clockwise about pivot 65 (to allow arm 26 to fall). Link 72 engages and lies along flange 108 of arm 64 so that pivots 65 and 76 become coaxial and the tension produced in link 74 compresses the folded mattress (Fig. 7). Flange 104 is drawn into contact with centre section 44. Pin 66 on link 100 abuts one end of slot 67 to prevent further inward rotation about pivot 42.