baber/WOPTO huggingface dataset:
Patent GB-837889-A (GB)
Title: Screw driver bit
Inventor: ANSINGH CARL HERMAN
IPC: B25B15/00
Filed: 1957-02-14
Abstract: 837,889. Making screwdrivers. ROBERTSON MFG. CO. Ltd., P. L. Feb. 14, 1957, No. 5140/57. Class 83 (2). [Also in Group XXIII] A screwdriver bit comprising a driving portion 3 tapering to a blunt conical end 4 and a shank 2 connected to the portion 3 by an enlarged shoulder 5 is formed from a length of drawn metal stock of square cross-section, by cold forging, the stock being forced into a die having the outlines of the parts 3, 5. The bit is hardened in the usual manner. In use the bit is forced into a tubular tool shank member 16 with the corners 17 of the bit shank biting into the softer metal of the shank.
Patent GB-1528523-A (GB)
Title: Precombustion fuel-air mixture conditioning device for internal combustion engines
IPC: F02B1/04
Filed: 1976-02-10
Abstract: 1528523 Treating IC engine charges F D FARNAM CO 10 Feb 1976 [14 Feb 1975] 05165/76 Heading F1B A pre-combustion conditioning device for interposition between a carburetter and a fuel/air mixture inlet of an I.C. engine employing a vaporizable liquid fuel comprises a gasket 50 of electrically insulative material which supports a foraminous member 48 of electrically conductive material so that, in use, it is in the passage 26 from the carburetter to the engine. The foraminous member is connected to an electrical source so that in use it is positively charged, so that fuel droplets passing there through also become positively charged and subsequently repel one another and are attracted by the wall of the passage which is negatively charged. Impact with the passage wall spreads the droplets and facilitates evaporation. One or more foraminous members 48 or 72, 74, Fig. 8 in the form of metallic mesh screen (e.g. of steel, copper or stainless steel) may be used, the edge of the mesh being held in a grommet 49 of conducting material The foraminous member 48 may be connected to a vehicle battery either directly or via a current limiting resistor (66), Fig. 6 (not shown), or a fuse (68), Fig. 7 (not shown), where two foraminous members 72, 74 are used, they may be both positively charged, Fig. 10 (not shown) and Fig. 12 or the upstream one may be negatively charged and the downstream one positively charged, Fig. 9 (not shown).
Patent GB-116308-A (GB)
Title: Electrically Fusing and Depositing Metal.
Inventor: JONES ERNEST HENRY
IPC: B23K35/30
Filed: 1917-04-12
Abstract: 116,308. Jones, E. H. April 12, 1917. Heating by electricity.-An are electrode contains all the constituents requisite for the deposition of high-speed steel, and is covered with slagforming material. For instance, the electrode may consist of a mild-steel trough filled with a mixture of 1.3 parts of carbon, 22 of tungsten, 9 of chromium, and 0.25 of vanadium, the iron of the trough amounting to 67.45 parts. In some cases, the steel only requires 6 per cent of tungsten. Molybdenum may partly replace tungsten, and other materials such as nickel and cobalt may be added. The whole is wound with asbestos yarn. Cutting parts of tools may be made or renewed by deposition from such an electrode; or the steel may be received by a mould at the bottom of which is the second electrode. Specifications 3762/11 and 109,652 are referred to.
Patent GB-432920-A (GB)
Title: Improvements in hair curlers
IPC: A45D2/24
Filed: 1934-02-16
Abstract: 432,920. Hair-curling appliances. NATKIEL, H., 104, Terrace View Avenue, and ENGELKE, H., 429, East 6th Street, both in New York, U.S.A. Feb. 16, 1934, No. 5182. [Class 131] A hair curler comprises two springy members of different lengths connected together at one end so as to lie in juxtaposition one on top of the other, the projecting portion of the longer member being formed with a catch which, upon the curler being folded about its mid point, is adapted to engage in a complementary catch formed at the connected extremities of the two members. As shown in the Figure, the curler comprises a strip of springy material, e.g. spring steel or celluloid, bent over at the point 3 to form a longer limb 1 and a shorter limb 2, the projecting portion 4 of the limb 1 being tapered and provided with a knob 5 adapted to engage a keyhole slot 7 formed in the limb 2 adjacent the bend 3, A stamped up bar 8 or an aperture may be provided in the portion 4 with which the end of the limb 2 engages when the curler is folded. In modifications, the shapes of the knob 5 and slot 7 differ from those shown in the Figure, and in a further modification, the knob is provided adjacent the bend 3 and the slot in the end of the member 1. The limbs 1, 2 may be hinged at the bend 3, and one or both .of the limbs may be wavy or may be covered, coated or lined with rubber or other material to provide gripping surfaces. In use, the end of a tress is gripped between the limbs 1, 2, the tress wound in any desired manner along the whole length of the curler, and the curler then bent and secured in position by engaging the ends together.
Patent GB-142960-A (GB)
Title: Improvements in or relating to toy "tanks" and the like
IPC: A63H17/045
Filed: 1919-03-03
Abstract: 142,960. Osman, W. R. March 3, 1919. Mechanical toys.-The creeping track of a toy fighting tank consists of a tape a threaded through stamped-up loops b<2>, Figs. 3 and 4, on plates b. The part b<2> is pressed down so as to secure the tape in place, and the ends c of the plates bare bent up so as to engage the sides of the driving- wheels and prevent the track from running off.
Patent GB-878020-A (GB)
Title: Improvements in dynamic braking for induction motors
Inventor: WHITCROFT JOHN
IPC: B23Q15/24
Filed: 1959-02-16
Abstract: 878,020. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 29, 1960 [Feb. 16, 1959], No. 5353/59. Class 38 (3). The dynamic retardation applied to an induction motor 3, 4 by disconnecting the primary winding 4 from a supply 5 and connecting a capacitor or capacitors 8 across one or more phases is progressively increased as a load driven by the motor approaches a desired stopping place by diminishing an impedance 6 in series or increasing an impedance in shunt with the or each capacitor. The arrangement may be applied to a machine tool by providing the movable portion with brushes 7 co-operating with resistive conductors 6 supported on the bed of the tool. The capacitors may have a valve such as to provide capacitive reactance comparable with the short-circuit reactance of the motor.
Patent GB-831770-A (GB)
Title: Compressor-turbine unit
IPC: F01D25/18
Filed: 1958-02-19
Abstract: 831,770. Gas-turbine plant. UNITED AIRCRAFT CORPORATION. Feb. 19, 1958 [June 20, 1957], No. 5384/58. Class 110 (3) [Also in Group XXXIV] In a lubricating and cooling system for the bearings 18, 20 of a high-speed compressor and turbine assembly having a compressor 12 and a turbine 14 mounted at the ends of a shaft 16 rotatably supported by the bearings 18, 20 in a housing 26, an impeller 22, carried by the shaft and having blades 24, circulates a lubricant mist through a cavity 28 which is closed at its ends by plates 30, 32 and in which the bearings 18, 20 are disposed. In order to ensure that no lubricant mist escapes from the cavity 28, compressed scavenge air, bled from the compressor through a seal 60 and a labyrinth type seal 62, is introduced into the cavity 28 through labyrinth type seals 34, 36 on the plates 30, 32 respectively, scavenge air being supplied to the seal 36 through duct 66 in the housing 26 and duct 68 in the plate 32. Lubricant, e.g. oil, drawn by the impeller, with or without the aid of a pump according to the speed of the compressor and turbine unit, from a sump 70 through a duct 74 passes through a jet 78 in an annular chamber 76 opening out into the area of the impeller blades 24. The scavenge air flow joins the mist flow in cavity 28 and passes through a duct 86 to the sump 70 and then through either of two pipes 94, 96 to a separator 72, the lubricant-free air then being fed to a turbine discharge duct through a line 98. A vent 88, with a relief valve 90, connects the scavenge area B with a turbine discharge chamber 92 and determines the pressure difference between the scavenge area B and the cavity 28. Compressed air, e.g. from an aircraft engine is introduced through a duct 42 to the inlet of the compressor 12 which discharges it to a collector manifold 48 leading through a line 49 to a duct 50 connected to the inlet of the turbine 14. The cooler air, issuing from the turbine in a passage 54 leading to the chamber 92 and scrubbing the outer surface 56 of the housing 26 to cool it, passes through a duct for admission, e.g. to an aircraft pressurized cabin.
Patent GB-526745-A (GB)
Title: Derivatives of hexamethylene-dithiocarbamic acid as vulcanisation accelerators
IPC: C08K5/00
Filed: 1939-02-17
Abstract: 526,745. Vulcanization accelerators. DU PONT DE NEMOURS & CO., E. I., and WILLIAMS, I. Feb. 17, 1939, No. 5421. [Class 70] [Also in Group IV] The vulcanization of rubber is accelerated by the addition to the mix of a salt, sulphide, or ester of hexamethylene-dithiocarbamate. The preferred salts are the sodium potassium, zinc, calcium, cadmium, barium, lead, iron, chromium, copper, mercury, magnesium and tin salts. The term sulphides includes dihexamethylene thiuram mono- and di-sulphides. The term esters includes compounds derived from hexamethylene-dithiocarbamate by replacement of the hydrogen atom in the mercapto group by an alkyl, aralkyl or aryl group or by an acyl group. Preferred esters are butyl, benzyl, and 2:4- dinitrophenyl esters. An extensive list of suitable compounds is included in the Specification. Examples are given to show the efficiency of the compounds when incorporated in a rubber mix. The compounds used in the present invention may be prepared in similar manner to known dithiocarbamate derivative from the corresponding secondary amine. Hexamethyleneimine prepared by elimination of ammonia from hexamethylenediamine reacts with carbon disulphide to give hexamethylenedithiocarbamate which then reacts with a further quantity of hexamethyleneimine to form the corresponding salt. In examples of the preparation of the compounds used in this invention (1) an acetone solution of hexamethyleneimine is treated with carbon disulphide to give the hexamethyleneimine salt of hexamethylenedithiocarbamic acid. If sodium hydroxide is used as the solvent, the corresponding sodium salt is formed. (2) The sodium salt prepared as above is treated with hydrogen peroxide in aqueous solution to give dihexamethylene thiuram disulphide. (3) Phosgene is passed through an aqueous solution of the sodium salt to give the carbonyl ester of hexamethylene-dithiocarbamic acid, and this compound when heated slowly to 80‹C. decomposes to form dihexamethylene thiuram monosulphide. (4) To form heavy metal salts the sodium salt is treated in aqueous solution with a salt of the desired heavy metal. (5) The sodium salt on treatment with benzyl chloride in alcohol solution yields benzyl hexamethylenedithiocarbamate, and on treatment with 2:4- dinitreochlorobenzene in alcohol solution gives 2 : 4 - dinitrophenyl hexamethylenedithiocarbamate. Specifications 140,387, [Class 70], 360,490, 398,118, 418,376, 429,320, 484,299 and 486,109 are referred to.
Patent GB-285874-A (GB)
Title: Improvements in high speed rotary blade pumps
IPC: F01C21/08
Filed: 1928-02-21
Abstract: 285,874. Cozette, R. Feb. 24, 1927, [Convention date]. Void [Publislied under Sect. 91 of the Acts]. Fixed-abutment type.-A rotary pump is fitted with three diametral blades 4, 5, 6 sliding in grooves in an eccentric rotor 2 and engaging the surface of the stator which is shown shaped to two semi-circular arcs 13, 14 having their centres at o<1>, o separated by a distance h<1>. The blades are cut away in the middle to pass each other.
Patent GB-471468-A (GB)
Title: Apparatus for mixing different or similar substances
IPC: B01F13/00
Filed: 1937-02-24
Abstract: 471,468. Mixing-apparatus. HUMMEL, O. Feb. 24, 1937, No. 5531. Convention date, Oct. 26, 1936. [Classes 59 and 86] A mixing-apparatus comprises a mixing vessel and a ball or roller a freely lying in a cup or trough b on an operating member c. The cup b is moved to-and-fro or rotated by a source of power and the mixing vessel may be moved in a different direction to the cup. Two or more rollers or balls may be used and the balls and cup may be made of wood, metal, porcelain, &c.
Patent GB-540020-A (GB)
Title: Improvements in safety valves
IPC: F16K17/10
Filed: 1940-03-28
Abstract: 540,020. Safety-valves. BABCOCK & WILCOX, Ltd., and GIBSON, J. H. March 28, 1940, No. 5582. [Class 135] A safety-valve of the kind in which the lift is increased by the action of the fluid escaping between a flange on the valve member and a surrounding wall has adjustable byepass ports formed in the surrounding wall. In the form shown in Figs. 1 and 3 the valve member 1 has a convex lower surface, an annular seating face 38 and a conical side face terminating in an annular flange 32. The annular valve seat face is formed on the bottom of a conical recess 39 in a seat member secured in position by bolts 54 passing through lugs 541. The recess 39 is tapered at a smaller angle than the edge surface of the valve member and is connected to the seating surface 38 by a curved surface 56. In a modification the conical surface of the recess is interrupted by a cylindrical part. A ported sleeve 42 is mounted on the seat and is adapted to control bye-pass ports 34 leading from the conical recess. This sleeve is adjusted by a nut 48 housed iii a recess in a fitting 50 screwed to the valve casing to compress a packing engaging a spindle having a pin and slot connection with an arm 44 on the sleeve. The spindle 45 may have a flat indicating surface 52 and may cooperate with a stop secured to one of the bolts 54. A piston 8 subject to the pressure of the escaping fluid works in a liner 27 held in position by a fitting 31 and has a lost-motion connection with the valve spindle 6. The other side of the piston is vented to atmosphere through a passage 30. The valve is loaded by a spring 19 housed in a case 12 between two abutments 9, 20, the abutment 20 being adjusted by a screw 16 cooperating with a screwed bush 231 and limit ring 23. A cap 24 secured to the valve spindle by a padlocked cotter 25 covers the ends of the valve spindle and adjusting screw 16 and is connected with an easing lever 26.
Patent GB-679155-A (GB)
Title: Improvements in liquid springs
IPC: F16F5/00
Filed: 1950-03-06
Abstract: 679,155. Liquid springs. CONSTANTINESCO, G. June 5, 1951 [March 6, 1950], No. 5635/50. Class 108(iii) A liquid spring comprises a plunger or piston P slidable in a cylinder C which is in open communication with at least one tube T of considerable length, and of small internal diameter and large liquid capacity compared with the corresponding dimensions of the cylinder C, damping being obtained mainly by wave transmissions through the liquid in the tube. In the arrangement shown, the tube T is connected by a secondary tube S of high " reactance " to a reservoir R. A manual or motor-driven pump H maintains the pressure in the reservoir R at the mean pressure of the liquid spring under the static load. The pump H may draw its supply from a supply tank or from gland leakage of the cylinder C. The tube T which may vary in bore from a fraction of a m.m. to several m.m.s. may be coiled around the cylinder C and may be formed of several interconnected parts. The damping liquid may be oil, grease, molasses or jelly, or may be any kind of compound which is, or becomes, liquid under very high pressures. Perforated valves may be interposed between the cylinder and the tube ends. These allow free passage of liquid into the tube in one direction and restricted passage in the other. Several of these valves may be disposed at intervals along the tube T. In a modified construction, Fig. 1 (not shown), the plunger P has no head, and the tube T is connected to one end, only, of the cylinder C. The other end is closed. The invention is applicable to shock absorber or suspension units for guns, aircraft, and vehicles. The volume of the tube T may be ten times that of the cylinder C. The pressure in the system may rise to 1500 atmospheres. Specifications 105,053, 125,604, [both in Class 108(iii)], and 128,592, [Class 69(ii)], are referred to.
Patent GB-673234-A (GB)
Title: Improvements in or relating to the production of films of regenerated cellulose
IPC: D01F2/08
Filed: 1950-03-07
Abstract: In the production of regenerated cellulose films by extruding viscose through a suitably shaped aperture (hopper lips) into a liquid coagulating bath, a cationic surface-active compound is incorporated in the viscose or in the coagulating bath.  Cationic surface-active compounds which are stable in an alkaline medium, such as ammonium derivatives having at least one long fatty chain, such as lauryl triethyl ammonium chloride, are suitable for addition to the viscose. Pyridinium salts substituted by long chains such as lauryl pyridinium chloride are especially suitable for addition to the coagulating bath.  In an example a viscose containing 8 per cent of cellulose and 6 per cent of caustic soda and having a salt point of 2.5 is extruded through a slit 0.13 mm. wide and 2 mm. in length, having illium lips, into a bath containing 140 g. of sulphuric acid, 250 g. of sodium sulphate and 15 mg. lauryl pyridinium chloride per litre at 41 DEG C.  The film of gel thus obtained is treated in the usual manner.  In another example, a similar viscose is extruded under the same conditions into a coagulating bath containing 15 mg. of cetyl pyridinium bromide per litre.  The addition of cationic surface-active compounds to the viscose or to the coagulating bath avoids clogging of the extrusion aperture, reduces the frequency of the breakages of the film and improves the regularity and mechanical properties of the films.  Specifications 211,446, [Class 2 (ii)], 469,817, 478,774 and 521,727 are referred to.
Patent GB-102675-A (GB)
Title: Improvements relating to Odometers.
Inventor: SMITHEY MARVIN
IPC: B60Q1/54
Filed: 1916-04-20
Abstract: 102,675. Smithey, M. April 20, 1916. Odometers.-In distance-measuring apparatus for motor-cars having a number of odometers actuated by a common driving mechanism, the odometers are arranged concentrically round the driving-shaft and are adapted automatically to be brought successively before a common reading- aperture. Manually operated means are provided for bringing any selected odometer to the reading position and for disabling and zeroizing the same. The different odometers may register the distance run since tvres were renewed, various parts lubricated, &c. Supported in bearings 5, 6 in the casing is the driving-shaft 4, and mounted to revolve on the bearing 6 and on a hub 9 on the shaft is a cylindrical casing 10, Alternately arranged within the casing is a series of odometers, the shafts of which are carried in bearings 19, 19a and by sleeves 24. The bearings 19, 19<a> are formed in the end of the cylinder 10 and carried by a web 21 respectively, and the sleeves 24 are mounted in the cylinder end 11. Arms 25 carried by the sleeves 24 project, in the reading position, through a slot 26 in the casing to allow partial rotation of disks 27 on the sleeves so as to disable the odometer-actuating pawls. The odometer shafts 18 are provided with clutch teeth 84 adapted to be engaged by similar teeth on the end of the shaft of a milled head 87 when this is moved longitudinally against its spring, thus allowing the selected odometer to be zeroized. Movement is imparted to the odometers from the shaft 4 through a cylinder 30 mounted to revolve on flanges 13 of the cylinder 10 and provided with pawls 75, Fig. 4, which engage the odometer wheels at each rotation. Normally, actuation is allowed by recesses 27<a>, Fig. 6, in the disks 27 but when rotated, the edges of the disks engage a flange 81 carried by the pawls which prevents their engagement. Rotation of the member 30 once per mile is effected bv a toothed ring 29a engaged in a pinion 34 in bearings 33, 35 secured to the end of the cylinder. The pinion 34 is driven from the shaft 4 through worm and spur gearing, the bearing for the shafts of which are carried by a plate 44 supported from the cylinder end by the bearing 35 and arms 44<a>. Slow continuous rotation of the cylinder 10, to bring the odometers successively before the reading-opening 62, Fig. 1, is effected by a pinion 47 which is carried by the plate 44 and engages the driving pinion 36 and a toothed ring 39 fixed to the casing. Manual rotation of the cylinder 10 to bring any selected odometer to the reading position is effected by a revoluble bezel 54 carrying a toothed ring 53 which engages teeth 17 formed on the cylinder. A mark 65, in conjunction with a lettered ring on the bezel, is provided to facilitate selection of the counters.
Patent GB-622979-A (GB)
Title: An electro-magnetic feed mechanism associated with centreless grinding or like machines
IPC: B24B5/35
Filed: 1947-03-01
Abstract: 622,979. Feeding articles to centreless grinding machines. SCRIVENER, Ltd., A., and SCRIVENER, A. March 1, 1947, No. 5903. [Class 117] An electromagnetic feed device for feeding workpieces, e.g. bolts b, one at a time to a centreless grinding machine is adapted to pick up a bolt from the feed chute a, feed it to the nip of the grinding roll c and the co-operating control roll, release the bolt in the nip and then return to pick up another bolt. An electromagnet d is carried at one end of an arm e adapted for reciprocal arcuate motion by means of a rack bar j and pinion mechanism k in synchronism with the operations of the grinding machine. Alternating current is supplied to the magnet to effect in sequence an alternate energization and deenergization at predetermined periods in its arc of motion to effect the pick-up and release of the bolts.
Patent GB-1441677-A (GB)
Title: After-burner device for internal combbustion engines
IPC: F01N3/26
Filed: 1974-02-08
Abstract: 1441677 After burner AUDI NSU AUTO UNION AG 8 Feb 1974 [9 Feb 1963 27 June 1973] 05922/74 Heading F4B  A flame retainer in an I.C. engine after burner comprises a star section metal tube 11, Fig. 1, connected to the chamber wall only at the entry end. The flame retainer may be formed of U-shaped metal channels secured to the chamber wall through metal strips welded to the chamber wall and the base of each strip, which has its limbs free. The flame retainers may be helical, or extend in the direction of the chamber walls.