baber/WOPTO huggingface dataset:
Patent GB-689673-A (GB)
Title: Improvements in or relating to spring catches particularly for use on doors
IPC: E05C19/02
Filed: 1951-08-16
Abstract: 689,673. Spring catches; door stops and holders. SAXTON, M. F., and COMEY, C. S. Aug. 16, 1951 [Aug. 17, 1950], No. 19319/51. Classes 44 and 65 (i) A catch of the kind yielding to opening or closing pressure comprises a casing 10, Fig. 3, having an opening 12 at one end and closed by a plate 32 at the other, a hollow piston 14 sliding in the casing and having an opening 16 aligned with the opening 12 and an inturned rim 28 at the other end, a bolt 18 having a disc-like base 20 inside the piston and a latching nose 22 projecting through the openings 12, 16, a spring 24 inside the pistons acting against the base 20 and a weaker spring 30 acting between the end of the piston and the plate 32. In fastening, as shown in Fig. 6, the catch acts as an ordinary latch, the keeper 56 engaging the oblique face 36 of the bolt to force it and the piston back against the weaker spring 30. In opening, the bolt tilts about one edge of the base 20 deforming the spring 24 as shown in Fig. 8. When the bolt reaches a certain angle its provides an axial component of pressure so that the bolt and piston move rearwardly as a unit compressing spring 30. The catch may be mounted in a mortice in a door edge as shown in Figs. 6 and 8 or it may be secured to the face of a door by a band clip. In Figs. 11, 12 the casing 100 is clamped under a strap 110 having securing flanges 108 and forming part of a handle 100 secured at the other end by a flat portion 102. A washer 80 between spring 24 and bolt 18 carries a rod 78 projecting through an opening 76 in the casing end-closing plate 74. An apertured plate 84 pivoted to plate 74 may be swung to and from a catch locking position in which it blocks the ends of the rod by finger pieces 86. In the form of Fig. 14 the catch is mounted under a strap 128 attached to an inside handle 116 bolted through the door by screws 124 and tubular nuts 120 to an outside handle 114. In another arrangement the catch casing is secured between two parts which are riveted together to form a handle. In another form the catch is mounted to project through an opening in the bottom of a channel shaped member, one side wall of which is secured to the door and the other of which serves as a hand grip. An auxiliary sliding bolt may be provided in this form to engage the keeper and secure the door. Door stops and holders: In the form of Fig. 20 the catch is used as a door stop mounted in a flanged sleeve 166 on the floor, the bolt being adapted to co-operate with a keeper 168 attached to the door. A rubber buffer 170 surrounds the casing 100 and sleeve 166.
Patent GB-939516-A (GB)
Title: Sulphonyl ureas
Inventor: HAYMAN DAVID FRANK
Filed: 1961-05-29
Abstract: The invention comprises compounds of the formula <FORM:0939516/IV(a)/1> wherein R is an alkyl, alkenyl, aralkyl, alkoxyalkyl, aryloxyalkyl, cycloalkyl, cycloalkyl-alkyl, cycloalkoxyalkyl or alkylthioalkyl group or an aryl group which may optionally bear alkyl, alkoxy or halogen substituents; e.g. R may be n-propyl, n-butyl, cyclohexyl, cyclopentyl, benzyl, cycloheptyl or hexahydrophenethyl.  The compounds are prepared by reacting p-vinylbenzenesulphonamide with the appropriate isocyanate in an organic solvent in the presence of an equivalent of alkali. p-Vinylbenzene sulphonamide used as a starting material is made by chlorosulphonating phenethyl bromide, treating the resulting p-2-bromoethyl-benzenesulphonyl chloride with ammonia to give p-2-bromoethylbenzene sulphonamide and treating with alcoholic potassium hydroxide.  Isocyanates used as starting materials such as n-heptyl-, n-octyl, t-pentyl-, cyclopentyl, cycloheptyl, cyclooctyl, hexahydrobenzyl-, hexahydrophenethyl, b -phenoxyethyl- and ethylthioethyl-isocyanate are made by the action of phosgene on the appropriate amine.
Patent GB-1465022-A (GB)
Title: Pumps
IPC: F04B11/00
Filed: 1975-05-08
Abstract: 1465022 Damping pressure pulsations in pump delivery FICHTEL & SACHS AG 8 May 1975 [10 May 1974] 19442/75 Headings F1A and F1D A radial or axial piston pump includes a collecting chamber 2 which receives liquid delivered past one or more pressure valves 4, the collecting chamber being at least partially filled with a foamed, resilient material, the individual cells of which are filled with gas. The resilient material is in the form of an annulus with recesses (6) around one of its ends, the recesses receiving webs at the base of the collecting chamber to prevent the annulus rotating. The radial piston pump shown has spring-urged pistons 3 reciprocated by an eccentric 11 driven by an electric motor 7.
Patent GB-1039363-A (GB)
Title: Linear polyesters
IPC: C08G63/86
Filed: 1965-05-07
Abstract: A linear polyester is made by polycondensing a glycol ester of a dicarboxylic acid or a low molecular weight polyester thereof in the presence of antimony trisulphide as catalyst. Specified dicarboxylic acids are terephthalic, isophthalic, p,p1-diphenylether dicarboxylic, p,p1-diphenylsulphone dicarboxylic, p,p1-diphenyl dicarboxylic, adipic, sebacic, azelaic and suberic acids.  Specified glycols are polymethylene glycols containing 1 to 12 carbon atoms, 1 : 2-propylene glycol and neopentylene glycol. In examples, polyethylene terephthalate was made by polycondensing, in the presence of antimony trisulphide, a precondensate obtained by reacting (1) dimethyl terephthalate and ethylene glycol in the presence of zinc acetate; (2) terephthalic acid and ethylene glycol under pressure and in the presence of calcium acetate.
Patent GB-640466-A (GB)
Title: Process for effecting catalyzed exothermic reactions
IPC: C08F10/00
Filed: 1947-07-22
Abstract: <PICT:0640466/III/1> In vapour or liquid phase exothermic reactions, e.g. polymerization and hydrogenation of hydrocarbons, wherein the reactants are passed along with a finely-divided catalyst through a reaction zone, the catalyst enters the reaction zone at a temperature substantially below the reaction temperature, whereby it serves to absorb the exothermic heat and control the reaction. The preheated reactants enter the reaction zone 2 from line 1 and pick up the powdered catalyst from line 12 containing screw-conveyer 13.  The mixture of catalyst and reaction products leaving the reaction zone is separated in, for example, a cyclone separator 3 and the separated catalyst is returned to the reaction zone through line 12 wherein it is cooled to the desired temperature by cooler 14.  The reaction products are quenched in separator 3 by a cooling coil 4 and are withdrawn through line 6.
Patent GB-1430333-A (GB)
Title: Aluminium alloy for electric conductors
IPC: H01B1/02
Filed: 1974-05-03
Abstract: 1430333 Aluminium alloy SUMITOMO ELECTRIC INDUSTRIES Ltd 3 May 1974 [17 May 1973] 19608/74 Heading C7A Aluminium alloy of composition:- Al and impurities balance. The alloy may be prepared from a boron treated aluminium melt by the addition of master alloys containing the above constituents, casting, hot forging, cold drawing to wire form and annealing for five hours at 300 C. The alloy may be used for communication cables, magnet wire, domestic wiring and overhead power transmission lines.
Patent GB-265074-A (GB)
Title: Improvements in paper clips or like fasteners
IPC: B42F1/08
Filed: 1926-08-09
Abstract: 265,074. Gray, J., (Butler, H. E., and Diggs, D. M). Aug. 9, 1926. Clips, sheet-metal, for paper, are made without bending from a stamping and have a corrugation to strengthen the part connecting the gripping bars. The blank 5 is stamped with a curved slit 2 forming the gripping jaws 1. 3. A corrugation 7 strengthens the connecting part. A rib 8 may extend round the slot on the jaw 1 and a protuberance 9 may be formed on the jaw 3 to increase the grip on the papers. The part 3 may have a monogram or other lettering thereon.
Patent GB-1311228-A (GB)
Title: Vehicle having an electrically actuared window operating mechanism
IPC: E05F15/689
Filed: 1971-06-09
Abstract: 1311228 Vehicle window mechanisms DRING hcF PORSCHE KG 9 June 1971 [9 June 1970] 19640/71 Addition to 1275685 Heading E2M In a vehicle having an electrically actuated window operating mechanism according to claim 2 of Specification 1275685, means 20 are provided for by-passing the safety switch 17 during the opening of the window. When the window opening button A is pressed, a solenoid 20 energises a member 8 which provides positive toothed drive from motor 7 to the window operating gear 5. During closing of the window both buttons Z and S must be pressed simultaneously to override the slipping clutch.
Patent GB-1527065-A (GB)
Title: Forming and filling bags of synthetic plastics material
IPC: B65B9/20
Filed: 1977-05-11
Abstract: 1527065 Bag form and fill apparatus S IZUMI 11 May 1977 19693/77 Heading B8C [Also in Divisions B4-B5] A bag form and fill apparatus comprises feed rollers 15 supplying a flattened plastics tube 11  from a reel 12, a cutter 18 for slitting the tube lengthwise into two U-shaped strips 11a and 11b a filling tube 17 for entering between the cut edges of each respective strip, means 23-25 for longitudinally heat-seating together the cut edges of each strip, and transverse bars 27 for transversely heat-sealing and severing the filled strips into discrete satchets. The cutter 8 is pivotally-mounted on an arm (5) having lateral guide arms (2) and (4), Fig. 2-3 (not shown), engaging internally the folded edges of the tube 11, the arm (4) being resilient so that any variation in tube width W produces a variation in the width of one strip whilst the width of the other remains constant. The filling tubes 17 have associated guides 18, 19, 28 and 29, and the entry of bacteria into the strips where the tubes 17 enter the latter is prevented by blowing hot air at 80-90‹C on to the edges of the strips from pairs of apertured tubes (34), Figs. 5-6 (not shown). The longitudinal heat-sealing means comprises reciprocable pairs of heating devices 24 each acting on the respective strip through opposed belts 23, the latter having non- stick PTFE coatings. The formed seam is cooled by water-cooled devices 25.
Patent GB-740722-A (GB)
Title: Improvements in or relating to process for the treatment of protein hydrolysates
IPC: C07K1/12
Filed: 1953-07-16
Abstract: Protein is hydrolysed with a non-oxidizing mineral acid, the humin separated at pH 0.5-4.0 at a temperature of 40-100 DEG  C. (preferably 60-100 DEG  C.), and the pH then raised to 5.5-10.0 (preferably 5.5-6.5) to precipitate tyrosine-containing mateiral, preferably for 8-16 hours at atmospheric temperature; a further tyrosine-containing precipitate can be obtained by concentrating the solution.  Glutamic acid is precipitated by again acidifying the solution to pH 3.0-3.3, and if this is a desired product this pH range should be avoided in the first step to minimize loss.  Pure tyrosine can be obtained from the tyrosine-containing precipitate according to Specification 724,766.  Examples show the hydrolysis of cereal gluten with hydrochloric acid and subsequent treatment as above.  Sulphuric acid may also be used.
Patent GB-648937-A (GB)
Title: Improvements in or relating to impulse operated electrical apparatus suitable for use in automatic telephone and like systems
Inventor: NIJMAN ZYTSE CLAAS
IPC: H03K23/74
Filed: 1948-07-23
Abstract: 648,937. Impulse counter. STAATSBEDRIJF DER POSTERIJEN TELEGRAFIE EN TELEFONIE. July 23, 1948, No. 19772. [Class 40 (iv)] [Also in Group XIX] In a counter or divider, an impulse train halving element comprises a relay, operated by discharge of a condenser and released by a short-circuit of its winding or by the energization of a second winding in magnetic opposition. Operation of contact i charges a condenser Ka, restoration of the contacts energizing relay winding A1, which locks up in series with opposed winding_ A2, the field of which is insufficient to release the relay. When contact i restores after a second impulse, condenser Ka, oppositely charged, energizes winding A2 while winding A1 is short-circuited so that relay A releases, a similar halving element then operating a relay B (not shown), whereby a chain of such relays can be used for counting on the binary principle. The winding A2 may be replaced by a resistance (Fig. 3, not shown), or may be put between the contacts i and the winding A1, Fig. 4.
Patent GB-696930-A (GB)
Title: Airplane rudders
IPC: B64C9/00
Filed: 1951-08-22
Abstract: 696,930. Aircraft rudders. GLIWA, M. Aug. 22, 1951. No. 19772/51. Class 4. A rudder for an aircraft comprises a plate 17 connected to diverging plates 14 in turn connected at their upper and lower edges by end plates 15 fast with a vertical shaft 16. The rudder is mounted at the rear end of a fuselage which has end walls converging parallel to the plates 14 and supporting a bearing block 13 in which the shaft 16 is rotatably mounted. Plates 28 are secured to the fuselage to restrict the entry of air into the space formed between the plates 14 and the panels 11. The shaft 16 carries an extension rod 18 on which is mounted a spring loaded detent 27 arranged to engage with the teeth of a serrated plate 22 fast with the fuselage. The rudder may be mounted at the front end of the fuselage.
Patent GB-995470-A (GB)
Title: Apparatus for the monitoring of fluid bearings
IPC: G21D1/02
Filed: 1963-05-20
Abstract: 995,470. Bearings. BROWN, BOVERI & CO. Ltd. May 20, 1963 [May 22, 1962], No. 19915/63. Heading F2A. In a fluid bearing, contact between a sleeve and a shaft is determined by at least two series-connected condensers being provided, one electrode of each condenser being rotatable with the shaft and the other electrode of at least one condenser acting as a bearing, the arrangement being such that a condenser is short-circuited on contact occurring between shaft and bearing. In an embodiment, a shaft 1, having a flanged end, is supported radially in sleeves 3, 4 and axially by a thrust bearing 2. The shaft 1 is surrounded by a ring 6 made from electrically non-conducting material and having a metal layer 5 on its inner surface. The air gap between the ring 6 and the shaft as well as the breadth of the ring 6 conform to the desired electrical capacitance. An insulated wire 7 is connected to the layer 5 and is passed through a easing 9. The casing 9, sleeves 3, 4 and the thrust bearing 2 are earthed and represent, together with the shaft 1, the electrodes of three parallel-connected condensers. A check instrument (not shown) is connected to terminals 8 of the wire 7 and the earth-wire. The capacitance between the ring 5 and the casing 9, which is measured at the terminals 8, comprises two capacitances connected in series. The change in capacitance is converted to a change in voltage so as to actuate a visual or acoustic signal. In another embodiment, the contact between each bearing and the shaft is indicated.
Patent GB-827591-A (GB)
Title: Improvements relating to nut tightening or loosening adaptors for coal or stone drills
Inventor: WOOD JOHN CLEGHORN
IPC: E21D21/00
Filed: 1955-07-11
Abstract: 827,591. Belt-fastening appliances. MASTABAR MINING EQUIPMENT CO. Ltd., [formerly MASTABAR BELT FASTENER CO. Ltd.]. June 27, 1956 [July 11, 1955], No. 19948/55. Class 80 (1). [Also in Group XXII] A yielding-drive attachment for screwing-up or unscrewing nuts and driving a belt-fastening appliance comprises a clutch 4, 9 loaded to slip at a predetermined torque, the element 4 carrying a butt 1 for engagement in a driving socket and the element 9 carrying a box-spanner 11 or the like for driving a nut. The element 4 of the friction-or toothed impact-clutch is driven by an extension 3, of square section, of the butt 1 which has driving lugs 2. A spring 7 loads the clutch elements against a nut 10 on an extension 6 of the part 3, and a nut 5 prevents escape of the element 4 upon removal of the element 9. The spanner 11 is formed with lugs 11a secured in slots 9b in the element 9 by one or more pins or screws 13. The slots 9b, after removal of the spanner, may drive the handle of a belt-fastening machine. Reference has been directed by the Comptroller to Specification 739,079.
Patent GB-668058-A (GB)
Title: Improvements in and relating to electric cooking ranges
IPC: F24C7/08
Filed: 1950-08-14
Abstract: 668,058. Indicators for switches. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 14, 1950. [Aug. 19, 1949] No. 20137/50. Class 38 (v). [Also in Group XI] In an electric range with hotplates 15 controlled by switches 41-44, each with five transparent push-buttons 51 and an "off" push-button 56, a colour card with differently-coloured transparent panes 65, one for each button, is mounted above each switch 41 ... 46 controlling the degree of heating of the hot-plates. A single transverse lamp 81 is mounted within a backsplasher 19 carrying the switches. A shutter is formed with an opening 73 in an extension 74 of the buttonmounting, associated with an opening 72 in a ferrule 71 on the inner end of each pushbutton, so that a coloured light is transmitted through the button when operated to indicate the degree of heating. The inner end 75 of each pushbutton is inclined and serrated to reflect light through the button. The backsplasher 19 has a window 28 in a recess 26 to illuminate the switches and carries a similar oven switch 36, a rotary temperature-setting knob 91 for the oven, and a clock-controlled timer 34 with a control 35. The push-buttons are mounted in a row in a trim plate 29.
Patent GB-1419732-A (GB)
Title: Process and apparatus for manufacturing jaspe yarn
IPC: D01G15/70
Filed: 1974-05-08
Abstract: 1419732 Producing slub yarns G BOLLI 8 May 1974 [11 May 1973] 20238/74 Heading D1N A process for preparing materials for producing slub yarns comprises using a carding engine wherein the radial distance of a fancy roller 9 from the carding cylinder 3 is automatically variable in order to produce differing thickness web. The variation is produced by means of a fluid operated piston/ cylinder A, Fig. 2, under the control of a continuous tape having perforations which activate photocells and hence an electrovalve system to work the said piston/cylinder A. The tape is driven from a tachogenerator 7 connected to the carding engine drive motor 6 to produce synchronous operation.
Patent GB-203313-A (GB)
Title: Improved method of constructing buildings and other structures
IPC: C04B40/00
Filed: 1923-08-06
Abstract: 203,313. BillÚ, L. Sept. 1, 1922, [Convention date]. Void [Published under Sect. 91 of the Acts]. Concrete vessels.-Building-blocks and entire structures such as concrete vessels are formed with a cement-concrete body layer 4, Figs. 1 and 2, with or without reinforcements, and a facing layer of asphalt or bitumen 1 with pieces of stone, rock, &c. or shaped reinforcements 3 of cast iron, steel, or porcelain embedded between the layers 1, 4. The asphalt may be replaced by tar-pitch or oil-pitch mixed with sand, cement, or lime. The blocks are made with holes to receive rods 9, Fig. 4, which project into the next course: the edges on the exposed face are rabbeted and the joints are pointed with asphalt or bitumen.
Patent GB-836598-A (GB)
Title: An improved helical support for main or blind shafts
IPC: E21D5/06
Filed: 1956-07-02
Abstract: 836,598. Linings for boreholes. LUBINA, S., and KLEINER, J. July 2, 1956 [June 30, 1955], No. 20417/56. Class 85 A shaft support system comprises a number of steel sections 1 which are interconnected to form a helix the convolutions of which are connected together by members 3. The sections 1 are secured to the rock by bolts 2 and may be shaped as shown or made of reinforced concrete or steel tube filled with concrete.
Patent GB-689445-A (GB)
Title: Improvements in and relating to composite pumps
IPC: F16N13/20
Filed: 1951-08-30
Abstract: 689,445. Centrifugal pumps. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 30, 1951 [Sept. 12, 1950], No. 20507/51. Class 110(i) A pump supplies liquid under pressure to a centrifugal pump, the inlet of which is also connected to a reservoir open to the atmosphere, so that when the rate of discharge of the centrifugal pump is less than the rate of supply of liquid to it from the other pump, the excess liquid fills the reservoir and overflows so as to maintain a constant static head at the centrifugal pump inlet. A gear pump 6, 7, Fig. 2, supplies oil for lubricating the bearings of a turbine and for use as the hydraulic power medium in the turbine governing system described in Specification 663,935, whilst a centrifugal impeller 9 of the circumferential-flow type provides the "pressure-signal", i.e., a hydraulic pressure which is proportional to the turbine speed. Leakage of oil from the gear pump, as through bearing lubricating grooves 6d, 7d, to to a recess 20 in a plate 3 provides the small amount of oil pumped by the impeller 9 and in addition affords a surplus which rises through a duct 16b, 16, 16c to a reservoir 12 and overflows over a wall 13. Thus, the reservoir 12 is kept full to provide a constant static head at the inlet of the centrifugal pump and to prime the centrifugal pump. A groove 23, Fig. 4, leads from the recess 20 to an annular pumping groove 24, where the oil is acted on by the impeller blades 9c and discharged through a duct 17a. The impeller 9 is loosely keyed to the shaft 7c so as to be able to centre itself between lands 22 and 27 on plates 3 and 4. Plate 2 is located relative to the pump housing 1 by dowel pins 19 and may be formed with an annular land 2a which registers with the recess 20 to locate the plate 3. Similarly, plate 4 may be located by a land 4a. The impeller 9 may be of the constructions described in Specifications 663,935 and 673,796. The gear pump may be replaced by other types of positive displacement pump. Specification 673,780 also is referred to.
Patent GB-372626-A (GB)
Title: Sewing machine for joining fabrics
IPC: D05B73/12
Filed: 1931-07-18
Abstract: 372,626. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.- (Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) July 18, 1931, No. 20603. [Class 112.] The stroke of an auxiliary feed dog 45 is adjusted relative to a main feed dog 44 by an arm 94 which var.es the position of a slide block 78 with respect to the auxiliary rock shaft 75 by means of a worm 87. The shaft 75 is operated by a link 79 connecting the slide block 78 and a pitman 61 which operates the main feed rock shaft 58. The machine illustrating the invention is described in Specifications 375,134 and 375,135.