baber/WOPTO huggingface dataset:
Patent GB-1246486-A (GB)
Title: Hydraulic swashplate pumps or motors
Inventor: GARDINER ALAN
IPC: F01B3/00
Filed: 1968-06-28
Abstract: 1,246,486. Reciprocating pumps or motors. ENGLISH ELECTRIC CO., Ltd. June 27, 1969 [June 28, 1968], No. 30921/68. Heading F1A. A swash-plate pump or motor comprises a rotary cylinder block 10 engaging a stationary valve plate 20 having arcuate ports 18, (19), Fig. 3 communicating with inlet and outlet connections 56 in the casing 68 through articulated couplings comprising a slidably mounted tubular member 50 and an annular member 58 with sealing means 60, 61 between them. Member 50 alternatively may be in casing 69 with member 58 abutting the valve plate. The clearance between the telescoping portions of members 50 and 58 permits slight tilting of one relative to the other to accommodate slight tilting of the block and valve plate assembly relative to the casing. The sealing means comprises an O-ring 60 backed by metal washers 61. The surface areas of member 58 exposed to working liquid pressure are such that it is biased against the casing. Valve plate 20 is biased against the cylinder block by working liquid pressure acting on surface 74, and by the reaction of pistons 78, Fig. 1, in bores 76 connected by ports 80 to the lands between the valve plate ports 18 (19), bores 76 being connected to working liquid pressure when the cylinder ports cross the lands. The swash-plate stroke is controlled by pistons 36, 38, stops 34, 46 and 48 being provided.
Patent GB-629288-A (GB)
Title: Improvements in and relating to piezo-electric devices for recording and reproducingsound
IPC: H04R17/04
Filed: 1946-10-18
Abstract: 629,288. Piezo-electric sound recorders and reproducers. BRYANS AEROQUIPMENT, Ltd., and HARLAND, A. B. Oct. 18, 1946, No. 31034. [Class 40 (iv)] [Also in Group XL (c)] A sound recorder and reproducer has a flat quadrilateral piezo-electric crystal 16 resiliently mounted on a metal casing 24 by rubber pads 23 cemented to three of its corners, the crystal being cut so as to have its axis of flexure lying along a diagonal X-X. A slab 22 of semi-plastic material such as cellulose acetate, having a high internal damping factor, is cemented to the remaining lower surface of the crystal. A sheet of urea-formaldehyde 17 has its central ring-shaped portion attached to the upper surface of the crystal by an elastic cement, and the remaining parts secured by a hard drying cement. A block 1 formed integrally with the sheet at the unsupported corner of the crystal supports a recording stylus 20 and a reproducing stylus 21. The crystal is clamped at its opposite corner by a metal bridge-piece 5 secured to the sides of the casing and supporting a rubber pad 3, the clamp also securing a plastic cover 7. A threaded stud 4, fitted with a polished domed sapphire 4a, is screwed into the casing and forms an adjustable groove depth gauge, the adjustment being fixed by a lock-plate 8 and screw 9. The crystal may be made of two laminµ with high and low potential electrodes 13, 12 applied to the inner and outer faces respectively, the low potential electrode being earthed to the casing. A yoke 25 provided with supporting trunnions 2 is secured to the casing. In a modification the central ring-shaped portion of the urea-formaldehyde sheet is omitted, the adhesion of the two remaining parts to the crystal being supplemented, if necessary, by light metal clips. According to the Provisional Specification, the crystal is supported by only on rubber pad 23, the pads at the corners of the electro-mechanical axis being omitted. In addition a strip of flexible material such as polyvinyl-chloride is cemented to the casing wall so that it bears on the underside of the stylus holder.
Patent GB-840613-A (GB)
Title: Automatic constant rate sample feeder for liquids
Inventor: RHODES JOSEPH C
IPC: G01N1/14
Filed: 1958-09-29
Abstract: 840,613. Delivering measured quantities of liquids. STANDARD OIL CO. Sept. 29, 1958, No. 31083/58. Class 106(5) [Also in Group XXVIII] Apparatus for supplying measured quantities of liquid to a measuring instrument 24 at a controlled rate comprises a measuring chamber 10 having an air supply 18 connected to it through a pressure regulator 19 and flowrestricting capillary 20, a float 13 co-operating with an inlet 14 and an outlet line 22 leading to the instrument 24 through a flow-restricting capillary 23. Liquid is poured into the container through a screen 12 and funnel 11 until the float closes the inlet and any excess in the funnel is drained off through tubes 15 and a capillary syphon 25 to an overflow line 17. With the seating of the float, the air pressure built up in the chamber operates a switch 21 to start the instrument 24 and displaces the contents of the chamber at a controlled rate through the capillary 23, which is larger than the capillary 20. When the chamber is fully discharged and air passes through the capillary 23, the air pressure decreases and the float drops, thus lowering the pressure again so that the switch 21 stops the instrument 24. The float is ballasted at 26 so that it is about two-thirds submerged in the liquid and does not seat before the chamber is filled to its maximum level; a plunger 13a may be used to depress the float and vent any trapped air before discharging the chamber.
Patent GB-675753-A (GB)
Title: Improvements in or relating to pastes for printing electrical circuit elements
Inventor: DRAKE CYRIL FRANCIS
IPC: H05K1/09
Filed: 1947-11-24
Abstract: A printing paste for printing electric conductor elements contains finely-divided metallic particles, e.g. of silver, dispersed in a hydrophilic liquid also containing 0.1-0.5 per cent by weight of the liquid of a wetting agent comprising a sulphonated aliphatic alcohol containing more than six carbon atoms or the sodium salt of such a sulphonated alcohol, e.g. sulphonated lauryl alcohol; the liquid may be water.  For printing electric resistance or semi-conductive elements, the metal may be replaced by a metallic oxide, e.g. cadmium oxide and the liquid may be glycerine.  Specifications 569,388, 646,921, [both in Group II], 651,780 and 675,752, [both in Group XXXVI], are referred to.ALSO:Electric circuit conductor elements are printed by means of a paste containing finely divided metallic particles disposed in a hydrophilic liquid also containing 0.1-0.5 per cent by weight of the liquid of a wetting agent comprising a sulphonated aliphatic alcohol containing more than six carbon atoms or the sodium salt of such a sulphonated alcohol.  Resistive or semi-conductive elements are printed by means of a similar paste in which the metallic particles are replaced by particles of metallic oxides. Silver for making a conductive paste may be prepared by adding powdered ammonium formate to a solution of silver nitrate and gelatine in water, heating the solution at 80-100 DEG C until the reaction is complete, separating the silver centrifugally, removing excess gelatine therefrom by agitating violently at 60-80 DEG C with distilled water and again centrifuging.  The wet silver so separated is made into a paste with the required liquid, a little gelatine and 0.1-0.5 per cent of sulphonated lauryl alcohol or the sodium salt thereof.  A resistive paste may comprise cadmium oxide, formed by reaction betwen cadmium sulphate, chloride or nitrate and sodium carbonate and heating the cadmium carbonate as formed; glycerine, gelatine and wetting compound.  The base on which the elements are printed may be polystyrene-impregnated paper.  Specifications 569,388, 646,921, 651,780 and 675,752, [both in Group XXXVI], are referred to.
Patent GB-787365-A (GB)
Title: Improvements in or relating to portable grinders
IPC: B24B23/04
Filed: 1955-11-01
Abstract: 787,365. Grinding. STOLL, K. Nov. 1, 1955, No. 31155/55. Class 60. A portable grinder having a crank drive for reciprocating a plate-shaped grinding shoe 1 arranged perpendicularly to the shaft 15 of a driving motor is characterised in that the grinding shoe is resiliently suspended from the motor casing 2 by means of rubber strips 9, 10 which extend transversely of the grinding shoe at either side of the motor shaft and project vertically from the surface thereof, said strips serving to constrain the grinding shoe against effective lateral movement so that it is able to move substantially only longitudinally in a straight line, and being resistant to compression arising from the application of grinding pressure. The motor may be electric or compressed-air operated ; its shaft carries a fan 16 and reciprocates the shoe 1 through crank pin 17 and connecting rod 18 having a pin 19 engaging a bearing 20 secured to the shoe 1 and surrounded by a rubber bush 30, the rubber strip 10 being recessed at 21 to accommodate the bearing 20 ; the recess 21 is bridged by an outwardly projecting flange 24 of strip 10. Upper and lower flat steel inlays 25, 26 cast into each rubber strip have threaded bores 27 for screws 28 which secure them to the motor base plate 8 and the grinding shoe 1 ; the inlay on the lower side of strip 10 consists of two short steel flats 26<SP>1</SP> connected by a resilient stirrup 29, e.g., of thin round steel, welded or soldered thereto and bridging the recess 21. The strips 9, 10 are joined by longitudinal walls 22 of rubber having inwardly extending flanges 23 at their lower edges which abut the grinding shoe 1; the latter has an element A of sandpaper or like flexible abrasive detachably secured thereto. In a modification, the crank pin engages a slide block in a transverse groove of the grinding shoe.
Patent GB-799640-A (GB)
Title: An improved frame for use in the packaging of goods for transport
IPC: B65D5/44
Filed: 1955-11-01
Abstract: 799,640. Collapsible boxes; packaging. LICHTENSTEIN, B. Oct. 26, 1956 [Nov. 1, 1955], No. 31175/55. Classes 18 and 94(1) A collapsible crate or framework for a package comprises corner-pieces 10 each having three walls at right angles to contain a pyramid, and angle section base members 11, top member 12 and vertical members 13. The corner pieces are formed with three faces 14, 15 and 16, each of which has on its inside a pair of bent-over lugs 17 which slidably receive and hold between them the ends of the angle section members 11, 12 and 13. Each face is also provided with stops 18, which limit the movement of the members into the corner-pieces, as their square-cut ends abut on said stops. The base and vertical angle members 11, 13 are first placed in the bottom corner pieces 10, the packages inserted and the top frame 12 then formed and applied to the crate by fitting its corner pieces 10 over the upper ends of the vertical members 13. Finally ties 19 are applied to hold the parts together. One of the corner-pieces 10 may be without the lugs 17, being the last to be applied to the fully packed crate, and can be secured by a wire or strap bound round the corners.
Patent GB-1114330-A (GB)
Title: Gasification of hydrocarbons
IPC: C10G9/38
Filed: 1966-07-12
Abstract: In the production of combustible gases from hydrocarbons by a partial combustion process, a portion of the product gases is continuously recycled through a conduit to the gasification zone, entering at or near the hydrocarbon inlet, and an oxygen-rich gas is admitted to the conduit for admixture with the recycled portion. The portion may amount to 10 to 80% by volume of the product gas, and the product gas may preheat the O2-rich gas, before purification and cooling which may be, e.g., in a waste heat boiler.  The product gas may be carburetted with a petroleum fuel, e.g. the one being gasified, or with propane or butane.  The delivery of the O2-rich gas to the recycled gas, and the delivery of recycled gas to the gasifier, are controlled respectively by valves, see Fig. 4 (not shown), which are controlled by devices on the feedstock line, O2-rich gas line, and recycled gas line, and the O2-rich gas may be apportioned between the recycle line and a burner for the product gas.
Patent GB-483461-A (GB)
Title: Improvements in electric timepieces
IPC: G04C3/04
Filed: 1937-11-13
Abstract: 483,461. Electric clocks. GIRARD, E. Nov. 13, 1937, No. 31253. Convention date, Dec. 8, 1936. [Class 139] In an electric timepiece having a detent escapement and an impulse lever 15 which is alternately engaged with and released from an escapement lever 23 and which, upon being released by the regulating member 29 moving the escapement lever, is moved by a spring 16 tensioned by the armature 11 of an electromagnet 10 the circuit of which is closed by a contact arm 8 moved by the impulse lever 15, the contact arm 8 is mounted independently of the armature 11 and co-operates with the impulse lever 15 which moves it to open and close the circuit of the electromagnet. A finger 28 on the balance 29 engages a spring 27 to rotate the lever 23 against the action of a spring 25 and release the spring-pressed impulse lever 15 pivoted at 12, an arm 15b thereon engaging a pin 30 to give an impulse to the balance,while an insulated pin 18 closes contacts 8 to energize the electromagnet 10. The spring-pressed armature 11 is then rotated to re-engage the lever 15 with the lever 23 and open the contacts 8, a spring pawl 20 on the armature 11 engaging a toothed wheel 21 to drive the clock train. In a modification, the lever 23, Fig. 3, is recessed to eliminate friction between it and the lever 15. In this case, when the lever 15 is released a hooked spring 31 holds the lever 23 until the impulse lever is returned.
Patent GB-725539-A (GB)
Title: Improvements in or relating to electrical circuits using multi-gap cold cathode gas filled tubes
Inventor: JACKSON THOMAS MEIRION
IPC: H03K29/00
Filed: 1953-11-12
Abstract: 725,539. Multi-stable state circuits. STANDARD TELEPHONES & CABLES, Ltd. Nov. 12, 1953, No. 31430/53. Class 40 (6). A multi-gap cold-cathode gas-filled tube having storage and transfer gaps of the type described in Specification 692,415, [Group XL (a)], has a current source associated with all of the gaps from which current flows through the tube only when a transfer gap is fired. Fig. 1 shows a multi-gap tube MCT having the Registered Trade Mark " Nomotron " in which the transfer cathodes are commoned and connected via resistor R4 and rectifier MR1 to a point on potential divider R6, R7 to a voltage of approximately 70 volts. The control plates C which control the area of cathode glow are connected via a current limiting resistor R8 to a potential divider R9, R10 and the junction of the anode load resistors R2, R3 is connected via rectifier MR2 to a stabilized positive source of 280 volts. Normally when the tube is discharging to a storage cathode the voltage at the junction of resistor R2 and R3 is approximately 280 volts and rectifier is non-conducting. When a negative stepping pulse is applied at terminal P to the commoned transfer electrodes the discharge moves to include the next transfer cathode and the increase in anode current renders rectifier MR2 conductive so that current also flows from the auxiliary source. The increased voltage drop across the load resistors causes the preceding storage gap to be extinguished. At the end of the pulse the transfer cathode discharge is extinguished and the next storage cathode gap fires. In a modification, Fig. 2 (not shown), the auxiliary current supply source comprises a capacitor connected in parallel with part of the anode load such that the capacitor is charged when a discharge takes place to a storage cathode only and discharges through the tube when a transfer gap is fired. Specifications 691,901 and 691,946 also are referred to.
Patent GB-1440387-A (GB)
Title: Nylon compositions
IPC: C08K3/08
Filed: 1973-07-02
Abstract: 1440387 Stabilized pigmented polyamides MONSANTO CO 2 July 1973 [3 July 1972] 31442/73 Heading C3R Colour-pigmented nylon compositions are stabilized against the degradative effects of actinic radiation and weathering by incorporation of 400 to 600 p.p.m. dissolved Cu and 0À4 to 1À85 wt. percent of an inorganic halide other than an iodide, the ratio of Cu in p.p.m. to halide in wt. per cent being between 325 and 1150 to 1. The composition may also include up to 1000 p.p.m. of P. Various conventional halides and Cu and P compounds are specified. The composition is stated to be particularly suitable for synthetic turf, for which purpose the preferred pigments are halogenated or unhalogenated copper phthalocyanine in conjunction with chrome yellow and optionally carbon black; they may be incorporated as a dispersion in a carrier, e.g. polyethylene or nylon 6/66/610. Reference has been directed by the Comptroller to Specification 1,168,913.
Patent GB-314527-A (GB)
Abstract: 314,527. I. G. Farbenindustrie Akt.- Ges. June 29, 1928, jConvention date]. Thioindigo dyes.-Vat dyes are obtained by heating with an agent which removes water, a 2 : 2<1>-dithionaphthenylketone-3-carboxylic or 3: 31-dicarboxylic acid, the benzene nuclei being possibly substituted with any univalent substituent, and then heating the product to remove carbon dioxide. The anhydro-intermediate product probably has one of the following formulae : According to an example; phenylmercaptan-oglyoxalic acid is condensed with symmetrical dichloracetone to prepare 2 : 2<1>-dithionaphthenylketone-3 : 3'-dicarboxylic acid, which is then heated with acetic anhydride. On revatting the anhydro product, the dithionaphthenylenequinone is obtained. It dyes wool golden yellow tints. 2 : 2<1>-Dithionaphthenylketone-3-carboxylic acid may be prepared by condensing o-mercaptobenzaldehyde with 2-#-bromacetothionaphthene-3-carboxylic acid, which may be prepared by condensing chloracetone with phenylmercaptan-o-glyoxalic acid and introducing one mol. of bromine. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following examples : (1) 2 : 2<1> - dithionaphthenylketone-3- carboxylic acid is treated with thionyl chloride to form the acid chloride, which is then dissolved in carbon bisulphide and heated in the presence of aluminium chloride; on removing the solvent with steam and revatting, dithionaphthenylenequinone is obtained; (2) 2 mols. of 4-methyl-6- chlorthionaphthenequinone are condensed with 1 mol. of symmetrical dichloracetone, and the resulting 4 : 41-dimethyl - 6 : 61 - diehlor-2 : 21-dithionaphthenylketone - 3 : 3<1> - dicarboxylic acid treated with acetic anhydride; the anhydro product is introduced into a mixture of aluminium and sodium chlorides, the mass decomposed with water, and the dyestuff, 4 : 41-dimethyl-6: 6'-dichlordithionaphthenylenequinone, obtained by revatting; (3) 4-methyl-6-chlorthionaphthenequinone is condensed with monochloracetone, and the resulting 2-acetyl-4-methyl-6-chlorthionaphthene- 3-carboxylic acid treated with bromine to give the corresponding 2-bromacetyl derivative; the latter, on condensing with thionaphthenequinone, gives 4 - methyl-6-chlordithionaphthenyl-3 : 3<1>-dicarboxylic acid, which is treated first with acetic anhydride, and then with a mixture of aluminium and sodium chlorides, and worked up as in the previous example. This subject-matter does not appear in the Specification as accepted.
Patent GB-1480663-A (GB)
Title: Electrolytic cells of the filter-press type having bipolar elements
IPC: C25B9/19
Filed: 1975-07-28
Abstract: 1480663 Filter press cells RHONEPOULENC INDUSTRIES 28 July 1975 [29 July 1974] 31491/75 Heading C7B An electrolytic cell of the filter press type comprises a plurality of substantially identical bi-polar elements each comprising a bi-polar electrode and at least one frame, and units each comprising at least one bi-polar element are assembled together by means of releasable mechanical connection devices each fixed to a frame of each of two adjoining units to exert pressure urging the two frames together. The bi-polar elements may be arrayed horizontally, with wheels, rollers, or slides to permit horizontal movement. The mechanical connection device may include a sleeve on one element adapted to receive a spindle of another element, Fig. 3 (not shown) the arrangement being such that when the spindle is in the sleeve, the bi-polar elements are pressed together by a leaf-spring acting on the sleeve; the arrangement facilitates removal of individual defective elements without dismantling the entire cell. Specification No. 1429165 is referred to.
Patent GB-489164-A (GB)
Title: Manufacture of photographic silver halide emulsions
IPC: G03C7/36
Filed: 1936-11-18
Abstract: A colour-forming substance comprises a substituted amide of malonic acid containing in the molecule a substituent which renders it fast to diffusion with respect to the binding agent of the emulsion.  Such substituents are the groups described in Specifications 458,400, 465,823, 479,838, [all in Group XX], 483,000, 484,698, 489,093, 489,161, and 489,274.  The substances are suitable for colour development, e.g. with aminodimethylaniline; or may be used as azo components for the process described in Specifications 387,197, [Group XX], 436,587, 488,048; and 488,853, [Group XX]; or for producing black and white and grey images.  In the examples of the dyestuff components: (1) a product of the formula C6H5-NH-CO-CH2-CO-NH-C8H15 is obtained by the reaction of the semichloride of malonic acid ethyl ester with octylamine and the subsequent reaction with aniline; (2) <FORM:0489164/IV/1> is obtained by the reaction of the semichloride of malonic acid ethyl ester with para-dodecylaniline followed by reaction with para-aminobenzoic acid ethyl ester and saponification; (3) <FORM:0489164/IV/2> is obtained by the reaction of 1 mol. malonic acid diethyl ester with 2 mols. aminodiphenyl.  Carboxyl groups, sulphonic acid groups and several oxy groups may be introduced to increase the solubility in water. Specifications 468,946; 475,191, and 481,501, [both in Group XX], also are referred to.
Patent GB-428862-A (GB)
Title: An improved arrangement for driving vehicles by electric transmission from an internal combustion-engine
IPC: H02P9/00
Filed: 1933-11-13
Abstract: 428,862. Systems for transmitting mechanical power. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Vasteras, Sweden. Nov. 13, 1933, No. 31609. Convention date, Feb. 21. Addition to 418,409. [Class 38 (iv)] Boosting by dynamo-electric machines.- In an internal-combustion engine-electric vehicle in which the load on the engine is maintained constant by the provision, on the compound wound generator 2 of a separately excited winding 4 supplied from an engine driven exciter 7 in series with a motor 8 which drives an adjustable load and which is excited in accordance with the generator load current and by a winding 9 energized from the exciter 7, the winding 9 is connected in series with an accumulator 15 and is energized by the voltage difference between the exciter 7 and the accumulator 15 so that variations in speed of the engine cause relatively large variations in excitation of the generator field 4 in order that, reductions in torque of the engine resulting from transient reductions in speed thereof are accompanied by more rapid reductions in the torque of the generator to prevent overloading of the engine. The battery 15 may be replaced by a resistance or other device having a constant voltage drop with varying current therethrough. The charge current of the battery 15 may be varied without affecting the flux produced by the winding 9 by shunting the winding 9 by an adjustable resistance or by providing an additional exciting winding energized from a source of constant voltage, e.g. the battery 15, through a regulating resistance which is varied to alter the charging current. The battery 15 may be the starting and lighting battery of the vehicle.