baber/WOPTO huggingface dataset:
Patent GB-665548-A (GB)
Title: Feeding liquid fuel to reso jet tubes
IPC: F02K7/04
Filed: 1948-05-24
Abstract: 665,548. Spray carburetters. MAPROMAN AKT.-GES. May 24, 1948 [May 30, 1947], No. 13983/48. Class 7(iii) [Also in Groups II and XII] Liquid fuel is fed to a reso-jet device, comprising a combustion chamber valvelessly connected to a jet tube which is excited at its natural frequency by a rhythmic succession of explosions, by a venturi tube connecting the combustion chamber to a cold auxiliary chamber open to atmospheric pressure, the fuel outlet of a carburetter opening into a throat of the venturi. Intermittent explosions in a combustion chamber 12, Fig. 2, produce vibrations in a tube forming an extension of the chamber, which vibrations cause alternating increases and decreases of pressure  in the chamber. A venturi tube 14, 19 connects the combustion chamber to a cyclone separator 10, open to atmosphere, which supplies air to the chamber 12 and also acts as a float or storage chamber for the fuel. Fuel from the storage chamber flows through a metering orifice 11 to an annular chamber 18 and then through a gap at the throat of the venturi into the air stream. With a reduced pressure in the chamber 12 the fuel flows through the nozzle 14 into the chamber 12 but with an increased pressure the flowis in the opposite direction. To create an injector effect when the flow is from the chamber 12 to the chamber 10, the nozzle 14 has a smaller outlet opening than that of the nozzle 19. In a modification, the annular chamber 18 is replaced by a slot. The inlet of the chamber 12 and the injector device may be enclosed in a silencer which also forms the cold auxiliary chamber. The Specification as open to inspection under Sect. 91 comprises also the use of the apparatus with pulverulent and gaseous fuel. This subject-matter does not appear in the Specification as accepted.
Patent GB-1375882-A (GB)
IPC: A01K91/04
Filed: 1972-03-24
Abstract: 1375882 Attaching leaders to fishing lines G B KLEIN 24 March 1972 [25 March 1971] 14034/72 Heading A1A [Also in Division D1] A cord F, e.g. a fly line, is interconnected with a cord L, e.g. a leader, by a connector 20, Fig. 5, of resilient plastics material that has a pair of substantially axial passageways 21, 21' emanating from opposite ends of the connector and a side opening 23 intersecting at least one of the passageways. In Fig. 5 the cord ends are threaded through the passageways 21, 21' and then out of the side opening 23. The cords are knotted at 25 and 26 and then pulled back into the side opening 23 that is larger in diameter than the passageways 21, 21'. Fig. 8 shows a modified connector in which the passageways 31, 31' have individual side openings 33. Fig. 9 shows a further connector in which the cord L has an enlarged end 39 trapped in the connector C2, the other end of the connector having a side opening 33 that is larger in diameter than that of the axial passageway 31. In Fig. 12 two co-axial thimbles 50, 51' are interconnected by an arm 54, the bores 51, 51' being flared as at 53a to provide a tapered surface against which the knotted ends 25, 26 of the cords may bear.
Patent GB-495790-A (GB)
Title: Improvements in the manufacture of polyamides
IPC: C08G69/28
Filed: 1937-05-20
Abstract: The polyamides described in the parent Specification are treated with, or prepared in the presence of, monofunctional amide-forming compounds or substances which yield such compounds under the reaction conditions, the amount of monofunctional compound not exceeding 5 molar per cent of the diamine represented in the polyamide.  Suitable monofunctional compounds include: monofunctional acids, such as acetic, propionic, stearic, benzoic acids; anhydrides of monofunctional acids; esters of monofunctional acids such as phenyl or cresyl acetate, phenyl propionate; salts of monofunctional acids with nitrogenous bases such as ammonium butyrate, ammonium stearate, dibutyl ammonium acetate, pentamethylene diammonium acetate, hexamethylene diammonium acetate or propionate; ammonia; urea; salts of ammonia such as diammonium adipate or sebacate; acid amides such as butyramide, adipamide; monoamines such as methylamine, dimethylamine, ethylamine, butylamine and cyclohexylamine; compounds containing a single amide-forming group such as diethylethylene diamine; and salts or amides derived from monofunctional nitrogenous bases and acids such as dimethyl diammonium adipate, diethyl diammonium sebacate, di-N-methyl adipamide, di-N-methyl sebacamide and di-N-ethyl suberamide. Preferably one of the polyamide - forming compounds is used in slight excess.  The products may be used in the formation of fibres by melt spinning and also of films, ribbon, bands, sheets, and moulded articles.  They may also be used in the preparation of coating, moulding, sizing, impregnating, adhesive and related compositions, alone or with other ingredients such as cellulose derivatives (for example ethyl cellulose, benzyl cellulose, cellulose acetate, nitrocellulose), natural or synthetic resins (for example phenolformaldehyde, urea-formaldehyde, polyhydric alcohol-polybasic acid and polyvinyl resins), oils, plasticizers, pigments, dyes or fillers.  In examples: (1) pentamethylenediamine and sebacic acid are heated in the presence of xylenol and then heated with lauric acid to yield a polyamide; (2) decamethylenediamineadipic acid salt and xylenol are heated together and then heated with phenyl acetate; (3) hexamethylene diammonium adipate is heated with adipic acid, adipamide and hexamethylene diammonium acetate.  Specification 474,999 is referred to.
Patent GB-263031-A (GB)
Title: Improvements relating to the feed mechanism of slicing machines
IPC: B26D1/16
Filed: 1926-06-04
Abstract: 263,031. Berkel, J. C. van. June 4, 1926. Cutting slices in succession.-In a slicing- machine of the type wherein a rotary knife is carried by a swinging arms, means are provided for imparting uniform movements to the feed mechanism irrespective of the amplitude of the swing, and the slice thickness is adjusted by an independent device. As shown in Fig. 2, the invention is applied to the machine described in Specification 257,201. The feed screw 27 is revoluble in the frame 1 of the machine and is actuated by a ratchet wheel 28 and a pawl 29 which is carried by a rod 34 pivoted to a lever 35 pivoted at 36 and having a roller 35a engageable with a cam face 33<a>, 33<b> of a member 33 adjustably connected to the swinging arm 13. The movement of the feed screw is controlled by a shroud 31 adjusted in relation to the ratchet wheel 28 by a rod 32<a> and handle 32. The roller 35<a> is kept in contact with the cam 33<a>, 33<b> by a spring 41 and the member 33 is revoluble on the boss 37 and is locked in a position, depending on the amplitude to be imparted to the knife, by the engagement of a spring-pressed pin 38, carried by the member 33, with one of a series of holes 39 in the swinging-arm 13. The pin may be carried by the arm 13 and the holes arranged arcuately in the member 33. The invention may be applied to machines wherein the knife is rotated by the movement of the swinging arm.
Patent GB-623884-A (GB)
Title: Vapor liquid contacting unit
IPC: B01D3/26
Filed: 1947-05-28
Abstract: 623,884. Testing liquids with gases. STANDARD OIL DEVELOPMENT CO. May 28, 1947, No. 14181. Convention date, Aug. 27, 1946. [Class 55 (ii)] In vapour-liquid contacting towers a series of vertically spaced pairs of horizontal plates are provided, the lower plate 12 of a pair having nozzles 16 which direct ascending vapour into short riser tubes 18 carried by the upper plate 14 and so cause liquid lying on the lower plate to be entrained the resulting mixture being projected on to baffles 20 surmounting the riser tubes. Downcarriers 22, 24, may be provided by walls depending from a portion of the plates not extending to the tower wall, the peripheral spaces formed being progressively distributed round the tower to avoid channelling effects, or separate downcarrier tubes may be provided. The risers may be venturi-shaped.
Patent GB-1321964-A (GB)
Title: Oil spill boom
IPC: E02B15/04
Filed: 1972-03-27
Abstract: 1321964 Oil booms STAMFORD AUSTRALIA PTY Ltd 27 March 1972 [29 March 1971 30 June 1971] 14183/72 Heading E1H An oil spill boom is formed from an impervious flexible sheet material shaped to form a collapsible top fin 7 and two collapsible bottom walls 8, 9, preferably inclined at 60‹, between which in use a stabilising open bottomed water ballast chamber is defined. The sheet is supported by a plurality of aligned interconnectable floats 1 each formed in two separable halves 2, 3 which are joined by rivets 6 with the sheet clamped therebetween. In use, U-shaped pivotable prop members 10, 13, adjustable struts 16 and wire stays 20 maintain the boom erect. Between adjacent floats, the fins 7 and walls 8, 9 of the sheet merge together to envelope posts 22, adjacent posts 22 being coupled together by an enveloping slotted casing member 23. Openable flaps 34 may be provided in one of the wall members to allow collapse of the boom for storage.
Patent GB-252547-A (GB)
Title: Improvements in or relating to hangers for coats or other garments
IPC: A47G25/62
Filed: 1925-05-29
Abstract: 252,547. Wright, E. S. May 29, 1925. No Patent granted (Sealing fee not paid). Coat and like hangers. -A hanger comprises an ordinary yoke part a to which are attached rods d carrying spring pressed clips for engaging the ends of the sleeves. As shown, the clips are provided with collars h, i capable of sliding on rods g which are connected to the rods d the ends of which are provided with balls e engaging spring sockets b. A spiral spring p is inserted between the collar h and a collar q which latter is maintained in position by a collar r provided with a projecting wedge surface t. The rod d may be screw threaded at f for adjustment or may be provided with recesses engaged by a projection on the rod g. The clips are provided with curved jaws j, j<1> pressed apart by a spring and closed by a lever m pivoted at n and provided with an operating surface n'. A collar o serves for maintaining the clip in its adjusted position. In operation, the coat or the like is placed on the yoke part a and the rods d, g pushed up the sleeves. The clips are pushed against the action of the spring p to engage the sleeves and the clips closed thereon whereupon the spring is released for stretching.
Patent GB-1038953-A (GB)
Title: Improvements relating to displacement sensitive or measuring devices
Inventor: SPENCER ROLF EDMUND
IPC: G05B19/35
Filed: 1962-04-13
Abstract: 1,038,953. Electric selective signalling systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 5, 1963 [April 13, 1962], No. 14292/62. Heading G4H. In a " fine " system for selectively positioning a movable member 1 with respect to a fixed member 6 the movable member carries a periodic winding 2 (which may be plane, as shown, or helical), the fixed member carries five short windings W1 to W5 phase displaced from each other by 36 degrees, and switch means are provided for applying appropriate currents to the five windings W1 to W5 so that when the movable member is driven to the position where no current is induced in its winding 2 then the movable member is in the desired position. As described unit currents of + I and - I are applied by switches S1 to S5 to four of the windings W1 to W5. As shown windings W1 and W2 receive + I, and windings W4 and W5 -I. These four unit currents have a vector resultant VR, Fig. 2. At the same time a current, which can range from - I to +I in 100 equal steps, is applied to the remaining winding W3, by switches S3, S6 and S7. The effect of this variable current is to displace the vector resultant VR to one of 100 positions in the range - 36 to 0 degrees. Thus by means of switches S1 to S7 the resultant electrostatic or electromagnetic field produced by the five windings W1 to W5 can be positioned at any of 100 positions within any one of the 10 36-degree sectors, and thus by driving the movable member 1 to a null position it can be selectively positioned at any of 1000 positions within a cycle of the winding 2.
Patent GB-1002442-A (GB)
Title: Plastic coins
Inventor: NEWMAN PETE HENRY
IPC: G07F1/06
Filed: 1961-04-20
Abstract: 1,002,442. Coins. THOMAS DE LA RUE ENGINEERING & CO. Ltd. July 20, 1962 [April 20, 1961], No. 14348/61. Heading G4X. Coins are made of a metal ring into which a synthetic resinous disc is keyed. As shown in the drawing the ring 1 may be formed with an internal pleat 2 or with an equivalent internal projection. The external periphery of the ring may be milled. The ring may be filled with molten methyl methacrylate with valve symbols formed in the surface by a die as the resin cools. The ring may be filled with transparent polystyrene containing a paper disc with the value of the coin printed on it. Fillings for the metal rings may be made of fifteen sheets of paper, or their equivalent in comminuted fibrous material, impregnated with phenol formaldehyde and pressed and heated between platens which mark the sheets with circular impressions containing a value symbol. The discs are cut from the sheet and inserted in nickel rings the ends of which are turned over to secure the discs. The fillings may have outer layers of paper printed with the value symbols and soaked in melamine formaldehyde resin and being overlaid with a similarly impregnated sheet of alpha cellulose paper. Such laminated plastic discs may be inserted on one side of a ring as shown in the drawing and the edge of the ring may be turned over to secure the disc, the other side of the ring being filled with methyl methacrylate resin. Flat pieces of metal bearing the value symbol may be incorporated within or at the surface of the coin, or the symbol may be introduced as an aluminium powder stencil on the face of one disc of resin to which another such disc is bonded. The ring may be surrounded by a rim of resinous material.
Patent GB-1174607-A (GB)
Title: Photo-Tubes and Electric Circuits therefor
IPC: H01J40/16
Filed: 1967-03-29
Abstract: 1,174,607. Photo-electric cells; cathode materials. LKB PRODUKTER A.B. 29 March, 1967 [1 April, 1966], No. 14364/67. Heading H1D. A phototube which avoids the use of leads sealed through the envelope, by employing capacitive coupling to its electrodes, includes two spaced photo-emissive electrode layers disposed on the inner surface of the envelope, and two layers of electrically conductive material disposed on the outer surface of the envelope opposite the electrodes, and provided with terminals. The envelope may be cylindrical and the electrodes arranged at the two ends (Fig. 1, not shown), or spaced along one side (Fig. 3, not shown). An alternating, preferably square wave, voltage is applied between the two conductive layers, while the photo emissive electrodes are subjected to the illumination to be detected or measured, either continuously or simultaneously, or alternatingly in synchronism with the applied alternating voltage, the voltage across a capacitor connected in series with the A.C. source being measured. The photoemissive material may be calcium, zinc, platinum, or tungsten, for a tube for use in the ultraviolet, or of caesium, potassium, sodium, or lithium for longer wavelength. In a modified structure, Fig. 4, in which the radiation under examination acts upon a control electrode and thereby provides an amplifying effect, the silica envelope 1 has a constricted central portion between the two photo-emissive electrodes 2, 3 and conductive layers 4, 5, with a further photo-emissive layer 13 coated on the constricted portion. Steady illumination 10, 11 is directed at the areas 2, 3, but passage of electrons between them is prevented, by space charge built up in the constricted portion by adherence of electrons to the envelope wall, in the absence of the illumination 14 which is directed at the central electrode 13. To enhance the capture of electrons by the envelope wall, magnets 18 may be arranged around the constricted portion of the envelope. In a further embodiment (Fig. 5, not shown) the constricted envelope portions and additional photo-emissive coating are replaced by a wire grid composed of or coated with photo-emissive material.
Patent GB-1472140-A (GB)
Title: Halopyridylthioalkyl thiocyanates
IPC: D06M13/355
Filed: 1975-04-08
Abstract: 1472140 Halo-4-(thiocyanatomethylthio)pyridines DOW CHEMICAL CO 8 April 1975 [15 April 1974] 14405/75 Heading C2C Halo-4-(thiocyanatomethylthio)pyridines of general formula wherein each X is the same and is either Cl or Br and n is 2-4, are prepared either (a) by reacting a compound of general formula with an alkali metal thiocyanate in the presence of an inert solvent or (b) reacting a compound of general formula where M is an alkali metal, with chloromethyl thiocyanate in a reaction medium or solvent. Amongst the examples the compounds 2,6 - dichloro; 2,3,5-trichloro-, and 2,3,5,6-tetrachloro- 4 - (thiocyanatomethylthio)pyridines are prepared.  Bactericidal or fungicidal compositions comprise a pyridine compound of Formula I in admixture with an inert carrier.
Patent GB-1029300-A (GB)
Title: Improvements in and relating to attachments for machines for filing a viscous or plastic product into packaging containers
Inventor: BENZON GOESTA
IPC: B65B39/12
Filed: 1965-04-05
Abstract: 1,029,300. Packaging machines. AKERLUND & RAUSING A.B. April 5, 1965, No. 14437/65. Heading B8C. A horizontal slide 16 (Fig. 1, not shown) cuts off a string of ice-cream or similar material extruded from a filling shoot 4 as the shoot is retracted from within a container 2. The shoot 4 passes through a hole 17 in the slide 16, and when the slide is retracted a part 18 of it closes the bottom of the shoot as in Fig. 2 (not shown). Whon the container has been filled and the shoot closed, the slide and shoot are raised slightly (Fig. 3, not shown) to allow the filled container to be removed by a conveyer and a fresh one positioned. A continuous supply of ice-cream from the freezer and an intermittent supply to the filling shoot is produced by the equalizer 8 together with a cock 12 opened and closed by the vertical movement of the shoot.
Patent GB-510916-A (GB)
Title: Improvements in control-valves for pressure-fluid circuits
IPC: F15B13/04
Filed: 1938-05-14
Abstract: 510,916. Fluid-actuated valves. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and NORTON, J. L. May 14, 1938, No. 14458. [Class 135] A power device for actuating a control valve in a fluid pressure system (e.g., for the selective control of the hydraulic clutches described in Specification 465,612, [Group -XXIV]), comprises a piston member 39, rotatable through 90 degrees in a fixed sleeve 13 by a lever 65 through an extensible dog coupling 40, 67 to admit or release from its ends, via the respective channels 47, 46 and 45 or 48, 49 and 50, pressure fluid supplied from the inlet 32 and exhausted through the ports 33, 36 and longitudinal grooves in the sleeve 13 to outlets 25 or 26. The piston is thereby moved axially to impart the required movement to the control valve, which in the form shown is incorporated in that piston and comprises the circumferential grooves 53, 54 extended on the lower side of the piston at 55 and 56 to connect the controlled conduits 28, 30 with the inlet 32 and with one of the outlets 25 or 26. Stops 70, 71 limit the rotary movement of the piston 39, and a pin 60 engaging a groove 58, in the form of a closed rectangular loop around a projection 59, prevents axial movement of the piston except at the extremities of its rotary movement. Further, rapid and positive axial movement is ensured by the width of the groove 31, communicating with the inlet 32, being such that pressure fluid is admitted to the relative end of the piston somewhat before the other end is connected to exhaust 36 (see Fig. 6). Movement of the piston may be transmitted to a bell-crank 78, e.g., for the control of a corrector jet on the carburettor of an internal combustion engine, with which the hydraulic clutches are associated, by means of a spindle 73, the head 72 of which engages a slot in the piston. Leakage along this spindle or along the spindle of the lever 65 is drained away through a pipe 81.
Patent GB-895240-A (GB)
Title: Basic dyestuffs
IPC: C09B23/10
Filed: 1960-04-25
Abstract: Basic methine dyestuffs suitable for dyeing fibres of polyacrylonitrile or asymmetrical dicyanethylene have the general formula <FORM:0895240/IV (c)/1> wherein the benzene ring A may be substituted or bear a further fused-on benzene ring, R1 and R2 are C1-C5 alkyl groups, R4 is hydrogen C1-C5 alkyl, cyclohexyl, benzyl, substituted or unsubstituted phenyl or carboxylic acid, amide or C1-C5 alkyl ester, R6 is a C1-C5\t alkyl, cycloalkyl, aralkyl or aryl group, R7 is a C1-C5\t alkyl or benzyl group, R8 is substituted or unsubstituted C1-C5 alkyl, cycloalkyl, aralkyl, aryl or substituted aryl group and X1 is an anion.  The dyes may be prepared by reacting a dye of the formula <FORM:0895240/IV (c)/2> wherein R3 and R5 may be hydrogen, substituted aryl, or the groups specified for R6, with an alkylating agent R7X1 such as dimethyl sulphate, diethyl sulphate, methyl iodide or methyl p-toluene sulphonate.  Alternatively, a 2-methylene-indoline-o -aldehyde may be reacted with a 1,2,3-substituted-5-pyrazolone in an acid medium such as phosphorus oxychloride, or a 2-methylene-indoline may be reacted with a 1,2,3-substituted-5-pyrazolone-4-aldehyde in an acid medium such as phosphorus oxychloride or acetic acid.  The benzene ring of the indoline nucleus may contain chloro, bromo, nitro, methyl, methoxy, ethoxy, amino, acetamino, cyano, carbamido, carbomethoxy, carbethoxy, methylsulphonyl, sulphamido or methyl-, ethyl-or phenyl-sulphonylamino substituents.  The group R8 may be b -cyanoethyl, phenyl or phenyl substituted with methyl, chloro, nitro, amino or carboxyl groups.
Patent GB-753071-A (GB)
Title: Improvements in or relating to tube extrusion presses
IPC: B21C23/21
Filed: 1954-05-18
Abstract: 753,071. Extruding. SCHULER AKT.- GES., L. May 18, 1954 [June 16, 1953], No. 14564/54. Class 83 (4). A tube extrusion press has one or more billet containers 23 movable from an extrusion position into a withdrawn position and means are provided for inserting an extrusion die 24 into a container at its withdrawn position, said means comprising a feed lever 102 having a diereceiving cavity 105 and adapted to swing about a fulcrum 104 from a die-loading position into a position at which the die is located in alignment with the container bore 98, and a plunger 107 operable to move the die out of the cavity 105 and into the container. Two containers 23 are mounted on a slide 44 movable transversely of the extrusion ram 21 by an hydraulic or pneumatic motor 59. Movement of the slide is limited by stops 45, 46, Fig. 2. Feed levers 102 are disposed adjacent the withdrawn positions of the two containers, and are actuated by hydraulic or pneumatic motors 112, 114. When the container has been withdrawn, the die 24 is removed manually and falls into a cavity 105 in the end of the feed lever. The lever is then moved outwardly into an accessible position, as shown at the left of Fig. 2, where the die is replaced by a new die and the lever is then moved inwardly to position the new die below the container bore. A vertical plunger 107 operated by pressure liquid or compressed air is then raised to push the die into the container bore. Instead of being mounted on the slide 44, a plurality of containers may be mounted on a rotary turret.