baber/WOPTO huggingface dataset:
Patent GB-781148-A (GB)
Title: Improvements in or relating to window blinds
IPC: E06B9/305
Filed: 1955-12-19
Abstract: 781,148. Venetian blinds. BUECHE, H. Dec. 19, 1955 [Dec. 24, 1954], No. 36329/54. CLass 20(3) A venetian blind of the kind comprising a series of slats 1, 2 which are suspended by pairs of ladders 3 from a rocker rod 9, rotatably mounted at its ends in bearings 10 secured to the side members of a frame 11, the upper and lower ends of each pair of ladders 3 being secured respectively to a cross piece 7 carrying a pair of upstanding lugs 8 welded to the rod 9, and to a lower lifting rail 12, is characterized in that both operations of tilting and unfurling the blind are controlled by a single cord 13. The latter fixed at one end to the lifting rail 12, and passing through apertures in the slots and in cross straps 6, passes over a roller 14 which is freely rotatable on the rod 9 between the lugs 8 of one of the plates 7, as shown. The cord 13 then passes round a roller 15, which is rotatable about a pin 16 extending between the lugs 8, over a roller 17 which is carried by a .stirrup 18 connected to the top cross piece of the frame 11, and finally over additional rollers such as 20 which are disposed to .suit the general arrangement. A torsion .spring 21, having one end fixed in one of the bearings 10 and the other in a ring 22 .screwed, at 23 to the rod 9, is tensed to urge the blind into the closed position, Fig. 3, which position is limited by a pin 24 on the rod 9 engaging a stud 25 on the frame 11. To ensure parallel movement of the lifting rail 12, since the lift of the single cord 13, connected adjacent one end of the rail, is unbalanced, pinions, 28 secured by pins 31, to each end of a roll 29 rotatably mounted in bearings 30 in the rail 12, each engage the teeth of a rack 27 housed within the adjacent upright of the frame 11. In operation, when no tension is exerted on the cord 13 the rocker 9 takes up the closed position according to Fig. 3. If the cord 13 is subjected to slight tension, insufficient to lift the cross piece 12, which may be specially weighted, the rocker 9 can be pivoted to any intermediate position between the closed and fully open position of the slats, the latter position being determined by a stud, not .shown, similar to the stud 25. If tension is still applied to the cord after the fully open position has been reached the blind can be folded up to the desired extent, whereupon slight reduction of the tension on the cord will impart the required inclination of the slats in the unfurled part of the blind. When the rocker reaches the closed position further reduction of the tension on the -cord causes the blind to drop. The resilient restoring means formed by the spring 21 could be omitted in which case the initial position  of the rocker Would be substantially horizontal and the slats could only be inclined from this position by rotation in the direction indicated by an arrow A.
Patent GB-156115-A (GB)
Title: Oil firing for bakers' ovens
IPC: F23C99/00
Filed: 1920-12-30
Abstract: 156,115. Ziemsen, W., and Ziemsen, A. Feb. 15, 1919, [Convention date]. Liquid-fuel furnaces.-In an oil-fired baker's oven, the burner 9 has a swivel mounting 8 so .that it can fire one or other of two oven chambers 1. As shown in Fig. 3, the mounting comprises two fixed pipes 7, 14 for oil and steam respectively and the rotatable member 8 engaging therewith and carrying the burner. Full-bore connection is established in the two operative pcsitions through holes 20 and in intermediate positions a small supply sufficient for a pilot flame is maintained by a small annular groove 22. Oil is supplied from a tank 3 above the oven and steam is generated in a heating coil 12 and passes through a separator 13 on its way to the burner.
Patent GB-958653-A (GB)
Title: Improvements relating to semi-conductor devices of low electrical capacity
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01L29/00
Filed: 1959-10-28
Abstract: 958,653. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 23, 1960 [Oct. 28, 1959], No. 36614/59. Heading H1K. A low capacity PN junction device is produced by attaching as conductor of small cross-section the surface of a semi-conductor body adjacent the junction and then forming a mesa base for the contact. In Fig. 2, after a whisker 4 has been fused to layer 3 of one conductivity type on a silicon body 1 of opposite conductivity type, grit blasting or etching is applied to erode the silicon at 6 forming a mesa base for the whisker. The diameter of the whisker may be 0.001 inch or less and it may consist of molybdenum-tungsten alloy, plated with goldantimony or gold-gallium alloys. The chemical etch may consist of hydrofluoric and nitric acids.
Patent GB-163654-A (GB)
Title: Improvements in boxes for containing sweetmeats and other articles
IPC: B65D81/36
Filed: 1920-12-31
Abstract: 163,654. Soroko, L. Dec. 31, 1920. Toys made in box form; figures. - A box adapted for containing sweetmeats, cigarettes, matches, &c. comprises an inner container folded from a blank shown in Fig. 3 to form a closed tray slidable in an open-ended shell a, Fig. 1, the upper side of the container being slit to form a tongue, b which h protrudes through a slit d in the shell. The shell may bear the representation of a face, the slit d forming the mouth and apertures e corresponding to the eyes. The top of the container has a series of representations of eyeballs which exhibit different expressions as the container slides through the shell.
Patent GB-1154329-A (GB)
Title: Continuous Casting Apparatus comprising means for Progressive Shutdown of Cooling Water Sprays
IPC: B22D11/22
Filed: 1966-08-16
Abstract: 1,154,329. Continuous casting-machines. UNITED STATES STEEL CORP. 16 Aug., 1966 [1 Sept., 1965], No. 36674/66. Heading B3F. [Also in Division F2] In a continuous casting apparatus including a mould 10, guide rollers 13, withdrawal rolls 30 and vertically spaced water sprays 20-29, the water sprays 20-29 are sequentially shut off by valves 40-49 as the tail end of the casting 11 passes each spray to prevent overcooling of the end of the casting 11. The means for shutting down the sprays comprises a pulse source 60 mechanically driven by the withdrawal rolls 30 and a reset counter 62 that, after a predetermined number of pulses have been received from the pulse source 60, sends out a secondary pulse that incrementally rotates a drum controller 63 that operates sequentially, by means of preset pegs 65, cam followers 70- 79. The cam followers 70-79 close microswitches 80-89 to energize actuators 50-59 that shut off the valves 40-49, which may be simple on-off types or variable opening types. The shut down means is brought into operation when the tail end of the casting 11 leaves the mould 10, either manually by push-button 90 or automatically by using a suitably arranged radiation pyrometer or a strain gauge or load cell device affixed to the uppermost guide roll 13.
Patent GB-980115-A (GB)
Title: Improvements in or relating to electrical circuits
Inventor: MASON FREDERICK PERCIVAL
IPC: H04L25/06
Filed: 1962-09-27
Abstract: 980,115. Regenerative telegraph repeaters. CREED & CO. Ltd. Sept. 27,1962, No. 36681/62. Heading H4P. A regenerative repeater in which the sampling time is a substantial fraction of the element length comprises gating means between the input line and a bi-stable device. In the embodiment described start-stop code signals are applied direct to gate 5 and via inverter 2 to gate 6. If doublecurrent signals are received the inverter is omitted. Unit 9 detects the start pulse and triggers unit 11 which provides a square wave clock pulse train to gates 5, 6 at twice the element frequency. The gates feed bi-stable unit 4, which is therefore set to the state of the currently received element and remains in that state for at least a half-element period. The remainder of the circuit is a distributer for passing the five sequential states taken by unit 4 to bi-stable units 12-16. It comprises a counter 22, fed with clock pulses from unit 11, which enables gates 17-21 in sequence. The last stage of the counter resets units 12-16.
Patent GB-1500597-A (GB)
Title: Primer device capable of ignition electrically and by an alternative ignition mode
IPC: F42B3/12
Filed: 1975-09-05
Abstract: 1500597 Primers DYNAMIT NOBEL AG 5 Sept 1975 [13 Sept 1974] 36753/75 Heading F3A A primer capable of electrical and mechanical ignition and for use in shell fuzes or propellant igniters, comprises, in one embodiment, an electrically conductive casing 1; a polepiece 3; an insulating element 5 provided with electrodes 22, 23 which are separated by a spark gap or are connected by a bridging element 25; an electrically ignitable priming composition 4; a frictionally ignitable priming composition 11; and an electrically conductive striker 13 which conducts current to the polepiece when electrical ignition is desired but which, in addition, is capable of being sheared off at 16 and driven into the priming composition 11 to effect mechanical ignition, e.g., on impact of a shell fitted with the primer. In another embodiment (Fig. 3, not shown) the conductive striker is omitted and ignition is effected by means of needle in a firing device which needle can be brought into contact with an electrically conductive foil covering the mechanically ignitable primer composition and in direct contact with the polepiece, or which needle can penetrate the foil to effect mechanical ignition of the primer. In a further embodiment (Fig. 4, not shown) 1, the primer is fitted with a percussion cap (29) for mechanical ignition but which cap is also in electrical contact with the polepiece. The insulating element 5, Figs. 2a, 2b, in the primers is formed of plastics, glass or aluminium oxide and the electrodes 22, 23 and extensions 26, 27 are formed of coatings of nickel, palladium, palladium-gold or platinum-gold applied by vacuum vapour coating, by imprinting, or by a chemical deposition method. The igniter bridge 25 is formed of tantalum or tantalum nitride. The electrically ignitable priming charge consists of lead trinitroresorcinate which is rendered electrically conductive by the addition of 2 to 4% of graphite or carbon black. The friction sensitive priming composition 11, Fig. 1, consists of 54% lead trinitroresorcinate or potassium chlorate, 10% tetrazene, 26% antimony sulphide, 4% calcium silicide and 6% glass powder. A priming composition 20, Fig. 1, consists of 30% lead trinitroresorcinate, 50% potassium chlorate, 20% calcium silicide.
Patent GB-1147816-A (GB)
Title: Improvements in scouring pads
Inventor: HITCHINGS CHARLES NICHOLAS
IPC: A47L17/08
Filed: 1966-08-17
Abstract: 1,147,816. Cleansing, polishing, and scouring pads. STEPHENSON MILLS Ltd. 1 Nov., 1967 [17 Aug., 1966], No. 36804/66 Headings A4F and A4R. A method of producing cleansing, polishing, or scouring pads comprises the steps of producing separate shapes from a lap of fibre-form material, e.g. steel wool or natural or synthetic fibres, and carrying the shapes on an openwork conveyer 1 for spraying with a cleansing and/or polishing substance, e.g. soap, by sprayers 21, pressing the shapes during or immediately following the spraying process, as between the conveyer 1 and a further conveyer 11, and thereafter drying the pads. Surplus cleansing and/or polishing substance is blown off the pads by air jets from nozzles 22, and the substance is washed from the belts 1, 11 by passing them through cleansing baths 25, 27 respectively.
Patent GB-1268062-A (GB)
Title: Improvements in or relating to umbrellas
IPC: A45B25/16
Filed: 1969-07-22
Abstract: 1,268,062. Automatically opening umbrellas. IDEAL K.K. July 22, 1969 [Jan.25, 1969(4)], No.36825/69. Heading A4P. An automatically-openable umbrella comprises a stick 1, a lower slider 13 pivotally connected to one end of a plurality of inextensible struts 12, the other ends of which are each pivotally connected by a pin 5b to a fixing member 4 secured to a rib 3, a latch located on a lower portion of the stick for retaining the slider in position when the umbrella is closed, an intermediate slider 10 between slider 13 and a top ring 2, which ring is secured to the stick 1 and pivotally attached to the inner ends of ribs 3, a plurality of extensible struts, each having one end pivoted to slider 10 and the other end pivotally attached by a pin 5a to the fixing member 4, a compression spring 11 on the stick between ring 2 and slider 10 for opening the umbrella when the latch 14 is released, and a spring 7 on each extensible strut tending to increase its length to maintain a cover 18 taut even when it expands on absorbing moisture. Each extensible strut comprises members 6 and 9 each with a slotted, or hollow cylindrical, portion intermediate its ends, and a spring 7 mounted on a rod 8 between hollow facing end portions of members 6 and 9, which end portions slidably receive end portions of rod 8. Alternatively the members 9 may be omitted, the inner ends of rods 8 being pivoted to slider 10. The slider 10 may be prevented from rotating on the stick 1 by a guide rod 17 engaging in a groove of slider 10. Downward movement of slider 10 is restricted by a transverse pin 15 in the stick, or by an outwardly projecting lower section of rod 17.
Patent GB-807247-A (GB)
Title: Production of diacetals of propargyl aldehyde
Filed: 1956-12-03
Abstract: Di-acetals of propargyl aldehyde are prepared by reacting the aldehyde or its half-acetal of a C1-4 aliphatic mono- or di-hydric alcohol with sufficient of a C1-4 aliphatic mono- or di-hydric alcohol, or a mixture of such alcohols, in the presence of a water-binding agent and sulphur dioxide.  Mixed acetals are obtained by reacting the aldehyde with a mixture of the alcohols or by reacting the half-acetal of one alcohol with a different alcohol.  A cyclic acetal may be obtained by reacting the aldehyde with a dihydric alcohol.  The water-binding agent, e.g. calcium chloride, zinc chloride or potassium sulphate, in anhydrous forms, or a dehydrated silicate, is preferably used in amounts of 10-60 per cent by weight of the aldehyde.  In general, one mol. of aldehyde is reacted with 2-4 mols. of monohydric alcohol or 1-2 mols. of dihydric alcohol and 1-20 parts of SO2 are used per 100 parts by weight of aldehyde. Temperatures of 0-60 DEG  C. may be used.  In examples: (1) propargyl aldehyde is reacted with methanol to form the half-acetal which is added with stirring to a solution of anhydrous CaCl2 in methanol containing SO2; the resulting dimethyl acetal separates out and is washed with aq. K2CO3, dried and distilled; (2) a mixture of aqueous propargyl aldehyde and propargyl alcohol is added to a mixture of methanol, CaCl2 and SO2 as in (1) yielding both the dimethyl and methyl propargyl acetals; in similar manner (3) propargyl aldehyde is converted into its diethyl acetal; (4) a propanol solution of propargyl aldehyde is added to a mixture of CaCl2, propanol and SO2, the reacted mixture then being neutralized and extracted with ether to isolate the dipropyl acetal; (5) butanol is reacted as in (4) to give the dibutyl acetal.  If desired, the formation of the half-acetal may be carried out in the presence of sulphur dioxide.  Specification 662,085 is referred to.
Patent GB-1240393-A (GB)
Title: Polyesters
Inventor: HODGE JAMES DWIGHT
IPC: C08G63/19
Filed: 1969-07-23
Abstract: 1,240,393. Polyesters of 2,2,5,5-tetramethyladipic acid and dihydric phenols. E. I. DU PONT DE NEMOURS & CO. 23 July, 1969 [26 July, 1968], No. 36993/69. Heading C3R. Fibre-forming linear polyesters having recurring units of formula wherein R is phenylene, biphenylene or isopropylidene-4,41-diphenylene are prepared by polycondensing a diester of a suitable dihydric phenol with a low molecular weight monocarboxylic acid ester of 2,2,5,5-tetramethyl adipic acid, the final part of the polycondensation being carried out at reduced pressure, possibly by a solid phase technique. The polyester may contain up to 10 mole per cent of other dihydric phenols or dicarboxylic acids. Specified reactants are: phenols-hydroquinone, 4,41-dihydroxybiphenyl and 2,2-bis-(4-hydroxyphenyl) propane; other dihydric phenols-resorcinol, dihydroxydiphenyl sulphone, dihydroxydiphenyl, dihydroxydiphenylmethane, diphenylolpropane or tetrachlorodiphenylol propane; other acids- α,α,α<SP>1</SP>,α<SP>1</SP>-tetramethyl pimelic, terephthalic, isophthalic, bibenzoic or naphthalene-2,6-dicarboxylic.
Patent GB-1506368-A (GB)
Title: Valve means
IPC: F16L55/10
Filed: 1976-09-07
Abstract: In the event of the pressure line bursting, the difference between the pressures upstream and downstream of an orifice (10) of the pipe-burst safety device increases. The pressure in a space (b) thereby increases so that a piston (1) is pressed down against a spring (7) and a closing section (3) closes a passage (2). Until a damping section (5) of the piston (1) connected to the closing section (3) by means of a rod (4) closes a first aperture of the line (11), the closing stroke runs rapidly, then more slowly under the damping action of a choke (13). A line (16) is used for the parallel connection to the pipe-burst safety device of any further cylinder. Compared with known safety devices, the response instant, which cannot be adjusted from outside and is virtually independent of viscosity, as well as the at first rapid, but then damped, closing action are advantageous. <IMAGE>
Patent GB-1237502-A (GB)
Title: An inflatable frame for kites
Inventor: ASTON CHARLES
IPC: B64C31/06
Filed: 1969-07-23
Abstract: 1,237,502. Inflatable kite. C. ASTON. 29 Sept., 1969 [23 July, 1969], No. 37058/69. Heading B7W. A kite comprises a planar sail supported on an inflatable framework comprising separate or integral tubes arranged in a cruciform relationship, or a tube which encircles the periphery of the kite. The encircling tube may be used with either form of cruciform tube.
Patent GB-994119-A (GB)
Title: A method for producing 2-keto-l-gulonic acid
IPC: C12P7/60
Filed: 1963-09-20
Abstract: 2-keto-L-gulonic acid is prepared by treating sorbitol with an enzyme system of a microorganism of the family Pseudomonadaceae, in a one stage process.  Genera Pseudomonas and Acetobacter of the above family are used, and lists of specific micro-organisms are given, and induced mutants may also be used.  The microorganism may be cultured in a sorbitol containing medium or alternatively after cultivation the culture, cells, or enzyme preparations are contacted with sorbitol.  The 2-keto-L-gulonic acid may be isolated as a salt, or by using solubility, adsorbability, or distribution coefficient properties or by using ion exchange resins, or esterified directly, enolized and lactonized to produce L-ascorbic acid.  L-ascorbic acid is prepared by esterifying the 2-keto-L-gulonic acid in the presence of mineral acid or a strongly acidic cation-exchange resin.
Patent GB-523022-A (GB)
Title: Improvements in or relating to mechanism for causing axialreciprocation of a rotatable tool spindle such as a grinding wheel spindle
IPC: B24B47/16
Filed: 1938-12-22
Abstract: 523,022. Grinding. STEVENS, A. H. (Cincinnati Grinders, Inc.). Dec. 22, 1938, No. 37298. [Class 60] Mechanism for giving axial reciprocation to a spindle 10 carrying a grinding-wheel 15 includes a piston movable under control of a reversing- valve, which moves under part control of a pilot valve, mounted co-axially with the reversing-valve and actuated by levers coupled to the piston. The spindle 10 has thereon a rib 16 engaged, through antifriction bearings by a sleeve 17 to which is pivoted a lever 18, one end of which is supported in cupped-ended members 20, whilst the other end engages a piston 22. The piston is movable in a cylinder 23, movements of the piston being controlled by valves in a housing 40. The reversing of the piston is effected by a sleeve 24 having a central groove 25 always in communication with an exhaust line; and grooves 26<SP>1</SP>, 27 always in communication with ports 28, 29 fed with fluid, through a line 30, from a pump 31. The ends of the cylinder communicate through channels 37, 36 with ports 38, 39 in the housing 40 so that axial reciprocating movement of the sleeve 24 causes reciprocation of the piston. Co-axial with the sleeve 24 is a pilot valve plunger 41 having spools 43, 44 and a central spool 42 of larger diameter ; the spools 43, 44 co-operate with ports 45, 46, respectively, connected to the fluid supply, and the spool 42 co-operates with a port 56 in the sleeve 24 and in communication with the groove 25. The ends of the plunger 41 are engaged by levers 52, 55 pivoted to plungers 57, 58 adjustable by eccentric pins 62, 71 on spindles 63, 72, the lower ends of the levers, engaging through plungers 50, 51, the upper end of the lever 18. Movement of the plunger 41 is thus brought about by movement of the levers 52, 55 and fluid pressure on the spool 42, the sleeve 24 thus being moved by fluid pressure on its ends. Since the port 56 is opened and closed gradually the fluid exhausting from one or other side of the spool 42 is controlled so that reversal of the piston 22 occurs without shock. By adjustment of the plunger 54 a variable amount of lost motion may be introduced between the levers 52, 55 and the pilot valve 41 to vary the stroke. Adjustment of the plunger 57 is used to stop the action of the device.
Patent GB-630705-A (GB)
Title: Improvements in or relating to gas fires and the like
IPC: F24C3/08
Filed: 1946-12-18
Abstract: 630,705. Gas fires. GENERAL GAS APPLIANCES, Ltd., and GREIG, D. Dec. 18, 1946, No. 37336. [Class 126] A gas fire has a row of upstanding burner jets projecting into a combustion chamber bounded by refractory members supported on a platform the front part of which may be removed together with the refractory material it carries to provide lateral access to the burner jets. Side and back refractory members are supported on the rear portion L and a front refractory member is supported on the front portion M of the platform, location of the refractory members bing provided by nibs Q, R, at the edges of a slot F through which burner jets G project, and by lips S at each end of the platform. The front portion M of the platform is provided with spigots V which fit into recesses X in the back portion M of the platform, both portions being provided with strengthening ribs T, U. The burner H is carried by brackets attached to the rear portion L of the platform.
Patent GB-515243-A (GB)
Title: Improvements in vehicle frame structures
IPC: B62D21/02
Filed: 1938-12-28
Abstract: 515,243. Motor-vehicle frames. DAIMLERBENZ AKT.-GES. Dec. 28, 1938, No. 37622. Convention date, April 12. [Class 79 (iv)] A motor-vehicle frame structure of the kind comprising longitudinal bearer tubes is provided with a so - called scuttle or three dimensional framework bounding or constituting the front wall of the vehicle body and which is rigidly connected to the longitudinal bearer tubes so that it forms a unit therewith. The framework preferably comprises two inverted U - shaped yokes c, d spaced apart with stiffening stays e between them and with their limbs c<1>, d<1> resting on and welded to the longitudinal bearer tubes a which may be of oval cross-section. and may be reinforced by cross tubes such as b. Additional pillar formation g, interiorly stiffened by plates or stays i, Fig. 4, may be applied to the front of the limbs of the yoke d, both the limbs and the parts g widening towards their bases so that they merge into the tubes a as enlarged feet. The arched part of the yoke c may be reinforced by tubular stays f, a fitting or eye h for the steering column being carried by the horizontal stay f.