baber/WOPTO huggingface dataset:
Patent GB-1240245-A (GB)
Title: Rotary compressor
IPC: F04C18/344
Filed: 1969-03-10
Abstract: 1,240,245. Separating oil from the gas discharge of rotary compressors. BORG-WARNER CORP. March 10, 1969 [March 26, 1968], No.12602/69. Headings F1F and F1N. A rotary compressor A, B discharges into a chamber 90 defined between a shell C and an oil separator D, the gas then flowing through the separator D to a chamber 92 containing the compressor A, B and a final discharge tube 70. The separated oil flows into a sump 60 and is withdrawn through a tube 62 having a strainer 64. The compressor has a rotor 20 provided with radial vanes 22 and is eccentrically mounted in the cylindrical bore 12 of a housing 10 closed by endplates 14, 16. Bearings 30, 34 in the end-plates support the rotor shaft 28 which is driven by a pulley 35 through an electromagnetic clutch 36. Gas is admitted through a passage 43 in the endplate 14 and flows into the bore 12 through intercommunicating cresent-shaped recesses 44 in the end-plates. After compression the gas is discharged past an automatic outlet valve (53) and passes through a cover member (56) to a conduit 58 leading to the chamber 90.
Patent GB-636823-A (GB)
Title: Improvements in pocket clips for fountain pens, pencils and the like
IPC: B43K25/02
Filed: 1948-05-07
Abstract: 636,823. Clips. WADE, E. E. S., and LIVSEY, C. May 7, 1948, No. 12607. Addition to 621,354. [Class 44] [Also in Group VII] In a fountain-pen or the like clip of the construction described in the parent Specification, a compression spring 18 is interposed between the nut 19 on the eyebolt 14 and the interior of the slotted end portion 7 of the cap 2. By this means additional resiliency is afforded to the clip 5.
Patent GB-643157-A (GB)
Title: Improvements in and relating to plugs for use in blasting operations
IPC: F42D1/18
Filed: 1947-05-09
Abstract: 643,157. Blasting tampings. MADILL, A. L. May 9, 1947, No. 12608. Convention date, May 10, 1946. [Class 9 (i)] A plug to be placed over a blasting charge in a borehole comprises a conical wedging member 10 of cardboard or like fibrous material extending into the tapered bore of a tubular wedging member 11 of similar material, which may be split longitudinally at 12 to allow the member 11 to expand when the conical member is driven into it. The conical member 10 has a longitudinal groove 15 forming a passage through a surrounding conical casing 14 which may have a tapered shoulder 16. The member 10 is filled with a dust-laying material, such as powdered lime, held in place by a plug 17 provided with a continuation of groove 15. After a charge and firing cap are placed in a borehole the fuze is threaded through the groove 15 and the casing 14 enclosing the conical member 10 is placed in the borehole, the tubular member 11 being placed in position over the shoulder 16. A modified plug is described in which the casing 14 and the groove 15 are omitted. From a large plug fitting into the conical member 10 an axial tube extends to form a passage for the fuze, the plug abutting a fibrous lining in the member 10.
Patent GB-674144-A (GB)
Title: Improvements in or relating to process of producing polymers of high molecular weight
IPC: C08F4/40
Filed: 1949-05-12
Abstract: Polymers are produced by polymerizing one or more monomeric substances possessing ethylenic unsaturation in aqueous emulsion in the presence of a polyhydric alcohol, such as ethylene glycol, glycerine, or erythritol, and a redox catalyst system consisting of a salt of a heavy metal capable of existing in two states of valency as a redox catalyst, a cumene hydroperoxide such as those of the general formula <FORM:0674144/IV (a)/1> where Ar is an aromatic nucleus, preferably of benzene or naphthalene, each R is hydrogen, alkyl, aryl, aralkyl, alkoxy, or halogen, x is an integer not greater than 4 and the sum of the carbon atoms in Rx is not greater than seven, and each R1 is either methyl or ethyl, and an organic reducing agent such as glucose, laevulose, sorbose, d-ribose, or invert sugar.  Heavy metals specified are iron, cobalt, nickel, and copper, a ferrous sulphate/sodium pyrophosphate complex being specified as a suitable salt.  Monomers specified are 1,3-butadiene, 2,3 - dimethyl - 1,3 - butadiene, isoprene, piperylene, 3 - furyl - 1,3 - butadiene, 3 - methoxy - 1,3 - butadiene, chloroprene, methyl chloroprene, bromoprene, styrene, p-chlorostyrene, p - methoxystyrene, alpha - methyl styrene, vinyl naphthalene vinyl acetylene, acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, methyl alpha - chloroacrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, methyl ethacrylate, acrylonitrile, methacrylonitrile, methacrylamide, methyl isopropenyl ketone, methyl vinyl ketone, methyl vinyl ether, vinyl ethinyl alkyl carbinols, vinyl acetate, vinyl chloride, vinylidene chloride, vinyl furane, and vinyl carbazole.  The polymerization may be carried out in batches or continuously in the presence of emulsifying agents such as potassium oleate, and p  preferably at temperatures of - 30 DEG  to 0 DEG  C.; also present in the reaction mixture may be mercaptans as modifiers for the polymers.
Patent GB-283045-A (GB)
Title: Hydraulic braking arrangement especially for motor driven vehicles
IPC: B60T11/224
Filed: 1927-05-12
Abstract: 283,045. Kandt, R. May 12, 1927. Fluid-pressure; blocks and shoes acting on drums.-A hydraulic brake system suitable for motor vehicles comprises .two pistons of unequal diameters to which pressure is successively applied by a pedal or other lever which pivots first upon one piston rod and then upon the other, the brakes being brought into engagement by the one piston and the effective pressure being applied by the other. The cylinder block Figs. 5, 7 is provided with a flange 39 by which it is secured by bolts 41<1> to a flange on a block which is bolted to the frame of the vehicle. The bolts 41<1> pass through slots 41 in the flange 39 which permits of adjustment of the operating lever 33 to a suitable position. The cylinder block comprises cylinders 14, 15 of different diameters in which work pistons 19, 21 and which communicate by a pipe connection 27 with the brakes. A reservoir connected at x normally commumoates with the system through a valve 23. The operating pedal lever 33 is connected to a pin 30 on the piston rod 28 and to a pin 32 on a pair of parallel rods 34 connected by a pin 31 to the piston rod 29. The pins 30, 32 slide respectively in pairs of parallel fixed guides 35, 36. The pin 32 is normally held in the upturned end of the guides 36 by springs 37, 38 connected to the pin and to fixed points. To apply the brakes, the upper end of the lever 33 is moved in the direction of the arrow A so that it turns about the pin 32 and forces the piston 19 forwards causing the liquid to flow through an opening 17 and the connection 27 to the brakes. After the opening 17 has been covered by the piston liquid at first continues to flow from the cylinder 14 through a valve 18, which however is closed by the slight rearward movement of the piston 29 that is effected at this stage by the. downward movement of the pin 32 in the upturned part of the guides 36. The pin 30 having reached the forward end of the guides 35, the lever 33 turns about this pin and the pin 32 and the smaller piston 21 are moved rearwards against the action of the springs 37, 38 to apply the pressure to the brakes. The .system may comprise brakes on the four wheels of a vehicle connected for simultaneous operation. A brake for the front wheel is shown, Fig. 4, .and comprises a wedge-shaped piston member 12 sliding on a cylinder 11 mounted on an anchor plate secured to the stub-axle. The member 12 engages rollers on the ends of a pair of shoes 5 pivoted to the anchor plate at 6. Returning springs 9, 13 for the member 12 and the shoes and adjusting screws 8 for the shoes are provided.
Patent GB-1278844-A (GB)
Title: Lactams and lactims
IPC: C07D225/02
Filed: 1970-03-17
Abstract: 1278844 Preparation of O-alkyllactims INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 17 March 1970 [18 March 1969] 12848/70 Heading C2C O-Alkyllactims having at least 10 ring members are made by reacting the corresponding N- unsubstituted lactam with more than 1 mol. of the required dialkyl sulphate per mol. lactam and thereafter treating with an aqueous alkaline solution to saponify and thereby remove unreacted dialkyl sulphate. If desired, the O- alkyllactims may be isomerized to the corresponding N-alkyllactams, e.g. in the presence of a dialkyl sulphate.
Patent GB-193327-A (GB)
Title: Improved apparatus for baking or drying substances at high temperatures and for subsequently cooling same
IPC: F26B23/02
Filed: 1922-05-08
Abstract: 193,327. Greenwood, R., and Carr & Co., Ltd. May 8, 1922. Addition to 185,460. Gaseous-fuel furnaces. -The oven described in the parent Specification is heated by combustion products generated by the surface combustion of gas and air. The heating-apparatus comprises a number of conduits f closed in at the top by porous refractory bricks m, in which a mixture of gas and air supplied to the conduits burns. The enclosing chamber a has an outlet at its upper end leading to a fan for forcing the hot gases through the oven, and at its lower end is an inlet by which the exhaust gases from the oven are returned to be re-heated. Plates k are arranged to direct the exhaust gases in a tortuous course through the heating-chamber, and baffles l are provided to protect the porous bricks m from the full force of the draught.
Patent GB-1500079-A (GB)
Title: Sewing apparatus
IPC: D05B35/10
Filed: 1975-03-27
Abstract: 1500079 Sewing machine STAHL-URBAN CO 27 March 1975 [27 March 1974] 12968/75 Heading D1G A sewing machine, has a work steering device comprising a feed wheel 5 and back up member 7 located upstream of the stitching mechanism, the feed wheel being rotatable about a steering axis 55 disposed upstream of the axis of rotation of the wheel 5. The wheel is mounted in clevis 27 supported on a tubular shaft 37 journalled in a frame 21 to be rotated, to steer the work, by a lever 35 connected to a pneumatically operated piston rod (73 Fig. 3 not shown) controlled by a pneumatic sensor (15, 17, 19 Fig. 1 not shown). The frame 21 is pivoted to frame of a guidance device (3) associated with the sensor. The wheel is driven by a belt 13 passing through shaft 37 and a belt 61 driven from a variable speed device 63 which permits adjustment of the wheel's feeding speed relative to that of the machine's feed. The belt 13 contacts the work and may be of circular or flattened section. Wheel grooves to each side of the belt groove accept rings (56) of similar section to that of the belt.
Patent GB-401320-A (GB)
Title: Improvements in hair wavers
IPC: A45D2/46
Filed: 1932-05-06
Abstract: 401,320. Hair-waving appliances. LEWIS, A. O., White Hall, Glais, Glamorgan. May 6, 1932, No. 13110. [Class 131.] A hair-waving device comprises a resilient framework adapted to be extended over the head, and a series of hair engaging elements carried thereby or forming part thereof, each of the hair engaging elements being provided with a helical groove or with a series of inclined grooves, the groove or grooves being oppositely inclined on successive hair engaging elements. As shown in Fig. 1, the device comprises a series of hair engaging elements 1 adapted to extend from the front to the back of the head, the elements 1 being provided at each end with a loop 3 through which is threaded a resilient element 2, e.g. an elastic cord or a coil spring. The element 2 is formed into front and rear head spanning members 4, 5, the sides of the member o being connected by transverse members 8, and the ends of the members 4, 5 being extended to form a loop 6 on each side of the nead to which ribbons 7 are attached. The hair engaging elements 1 each comprise a strip of metal, celluloid, or other resilient materal enclosed in a rubber or like sheath 1<1> which is formed with a helical groove 10, or with a series of inclined grooves, the groove or grooves on adjacent elements being oppositely inclined. In the modification shown m Fig. 3, the grooved hair engaging elements 1 are arranged to extend transversely of the head and are threaded at the ends 3 on rings 11 carrying a brow band 12 and chin ribbons 7. An elastic cord 13, secured to the centres of the band 12 and the rearmost hair engaging element, passes with a friction fit through a hole in the centre of each of the other hair engaging elements. Specification 328,215, [Class 131, Toilet &c.], is referred to in the Provisional Specification.
Patent GB-383887-A (GB)
Title: Improvements in heaters for liquids
IPC: F24H1/10
Filed: 1932-05-06
Abstract: 383,887. Heating liquids. EISENWERK G. MEURER AKT.-GES., Cossebaude, near Dresden, Germany. May 6, 1932, No. 13122. Convention date, July 15, 1931. [Class 64 (i).] In a liquid heater comprising a hollow truncated cone 6, down the outside of which water runs, and provided with flanged holes 16 so that the heating gases pass out from within the cone without mixing with the water, the base of the cone rests in a trough 10 formed by turning the outer casing 8 inwards and upwards. The trough is provided with a hot water outlet 11. Round the cone are one or more inner casings 19 provided with flanged holes 22 to allow of the escape of heating gases within them. The cone and the inner casings may have inwardly directed ribs or may be corrugated. The outer casing has a removable cover 14 so that the cone and inner casings can be removed and cleaned. The structure may be supported at points 28, 29, 33 on a gas and water fitting, point 33 being the conduit leading to the hot water tap. A cock 42 controlling the hot water and a cock 41 controlling a cold water byepass are placed close to the delivery tap 40.
Patent GB-927868-A (GB)
Title: Improvements in or relating to can openers
Inventor: PERL ALBERT HENRY FRANKS
IPC: B67B7/46
Filed: 1960-04-13
Abstract: 927,868. Can openers. H. PERL. April 7, 1961 [April 13, 1960], No. 13138/60. Class 66. A can opener of the scissors type provided with a piercing blade 32 and hooks 35 comprises separate cutting and piercing blades 12, 32 made in flat form from blanks and mounted into the structural members 5, 6 of the can opener. The opener comprises two channel section handles 5, 6 pivoted together at 9. The handle 5 is flattened and bifurcated at 7 providing right angled edges 8 against which the blade 12, pivoted at 13 in the handle 5, acts. The handle 5 also carries the piercing blade 32 and the hooks 35. Pivoted at 22 to the other end of the blade 12 is a channel section lever 18 which is pivoted at its other end in the second handle 6. The handles 5, 6 are sprung apart by a flat spring 24 operating on the lever 18 but may be held together by a catch 28 operating on the recess 31. In use the hooks 35 are placed over the rim of the can and the opener is pivoted about the hooks so that the blade 32 pierces the side of the can, Figs. 3, 4 (not shown). The blade 12 is then inserted through the incision and the opener is used in the mode of scissors to cut around the upper edge of the can, Fig. 5 (not shown).
Patent GB-1255225-A (GB)
Title: A control circuit for an alternating current motor
IPC: H02P27/06
Filed: 1969-03-13
Abstract: 1,255,225. Control of A.C. motors. DANFOSS A.S. 13 March, 1969 [16 March, 1968], No. 13316/69. Heading H2J. For controlling an A.C. motor, a direct voltage is applied to a voltage regulator 5 whose output voltage U1 depends upon the setting of a battery-fed resistor Rl. When the current passing through a resistor R2 becomes excessive, the regulator operates to reduce its output voltage. The regulator may comprise an electronic switch associated with an impulse-control circuit for passing, under normal conditions, pulses of fixed frequency but variable width. When the current-limit is exceeded, the repetition frequency is reduced. The voltage U1 is applied to an inverter comprising controlled rectifiers E1-E6 with a common quenching circuit 10 and from which the motor is supplied. A control unit 11 for the inverter is connected to a frequency regulator 12. A control resistor R3 is associated with rectifier 17 and indicator 14 so that the current through the resistor is proportional to the inverter current. Tappings 18, 19, on the resistor R3 each provide voltagesignals for reducing the voltage U1 by different amounts, these reduced voltages being applied to the voltage regulator and frequency regulator respectively for satisfactory motor operation at low speeds.
Patent GB-1009567-A (GB)
Title: Mechanical creepers for use with mine cars and the like
Inventor: BARKER WILFRED
IPC: F16G13/06
Filed: 1963-04-04
Abstract: 1,009,567. Mechanical creepers. W. H. BARKER & SON ENGINEERS Ltd. March 11, 1964 [April 4, 1963; July 19, 1963], Nos. 13363/63 and 28602/63. Heading B7L. A mechanical creeper comprises chain links 11 interconnected by pins 12 carrying rollers 10 and vehicle-engaging pads 13, Figs. 1, 2, each pad having extensions 14 engaging over links 11 to prevent rotation of the pads. In Fig. 4, a vehicle moving faster than the creeper engages pad face 13a whereas a slow moving vehicle is engaged by face 13b to speed up the vehicle. The pads may also have extensions 22, Fig. 6, riveted at 23 to links 17 to prevent rotation. In a modification of Fig. 4, both faces of the pad are inclined planar faces, Fig. 8 (not shown). The bottom of each pad may be disposed above or below the lowermost parts of the rollers whereby the rollers or pads respectively take the load consequent on engagement with a vehicle.
Patent GB-143266-A (GB)
Title: Improvements in or relating to flushing apparatus
IPC: E03D3/10
Filed: 1920-05-14
Abstract: 143,266. Milburn, J. J. July 10, 1917, [Convention date]. Valve-discharge water-waste preventers; cisterns for.-Relates to air-tight cylindrical cisterns made with an inlet pipe reaching nearly to the bottom of the cistern, and consists in mounting the pipe rigidly and co-axially with the outlet pipe and in direct connexion with the water supply pipe. Reference has been directed by the C o m p t r o l l e r to Specification 14939/86.
Patent GB-291393-A (GB)
Title: A process for the manufacture of emulsifying and stabilising agents and dispersions obtained therewith
IPC: C08K5/42
Filed: 1928-05-07
Abstract: 291,393. Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij, and Limburg, H. June 1, 1927, [Convention date]. Emulsions, making.-Aqueous emulsions or dispersions of mineral oils, vegetable oils, tars, asphalt, sulphur, rubber, &c. are prepared by the use of aromatic or hydroaromatic sulphonic acids or their alkali, calcium, or magnesium salts, the acids being characterized in that they are of molecular weight not less than 250, and that their calcium salts are soluble in water and calcium chloride solution. The acids are prepared in the form of their alkali salts by repeated treatment of mineral oils or fractions thereof with sulphuric acid or oleum, if desired at raised temperatures, the sludges being separated at each stage, the sludges containing the desired products being neutralized with alkali hydroxide, carbonate, acetate, or the like, and the alkali salts separated by usual methods. The calcium or magnesium salts or the free acids are formed within the emulsions, if required, by treatment thereof with calcium or magnesium chloride or with mineral acid. In an example, a spindle oil fraction containing 30 per cent. aromatic compounds, after treatment with 5 per cent. of sulphuric acid and separation of asphalts, is subjected to five successive treatments with 10 per cent of its weight of oleum (20 per cent SO,), acid sludge being separated at each stage. The sludges from the last two stages are mixed and neutralized with an alkali hydroxide or salt. The sulphuric acid is then separated by salting out or by precipitation with barium chloride. 300 parts of a 3 per cent. solution of the above prepared compounds are mixed with 800 parts of asphalt, with heating and under pressure if desired, to form an emulsion of the asphalt. The emulsions or dispersions so prepared are stated to be stable even in the presence of substances such as hydrochloric acid, lime, sorel cement, or concentrated salt solutions, and to be unaffected by boiling or freezing. In order to transform the charge on the dispersed particles from negative to positive the following addition may be made to the prepared emulsions or dispersions-albumens in weakly acid solution, basic dyestuffs, solutions of salts of multivalent metals, or hydrosol having positively charged particles. The sulphonic compounds mav be added as stabilizers to artificial dispersions already prepared or to natural dispersions such as rubber latex, or to mixtures of such products.
Patent GB-134619-A (GB)
IPC: B44F9/06
Abstract: 134,619. Devonshire, G. C., and Foord, E. T. Nov. 5, 1918. Plastic compositions containing vegetable ivory. -Ground vegetable ivory is mixed with casein, lime, and water, and optionally sodium silicate, and the product is employed for making buttons &c. An example of proportions is 12 parts of ground vegetable ivory, 3 parts of casein, 2 parts of lime, and 1-2 parts of sodium silicate. Specification 6573/08 is referred to.
Patent GB-445987-A (GB)
Title: An improved device for stropping safety razor blades
IPC: B24D15/08
Filed: 1935-05-08
Abstract: 445,987. Stropping razors. RUSSELL, M. B., May Villa, Penton Grafton, Andover, Hampshire. May 8, 1935, No. 13544. [Class 60] A device for stropping safety razor blades by the action of rubbing the device to-and-fro between two surfaces, for example, the hands, has stropping rollers therein so arranged that only the roller or rollers that are rotating in the correct direction shall contact with the edge or edges of the blade. A construction adapted for treating both single-edged and double-edged blades comprises two parts 6, 7 hinged together at one end and respectively carrying, on spindles 12 running in bearing slots 13, rollers 2, 4 and 3, 5. The central portion of the part 7 is of channel section and one edge of the channel portion has hinged thereto a guide member having two bent-over portions and a bent-up central portion 17, the other side of the channel being bent to form a flat surface 18. When a double-edged blade is to be treated, a strip 14, hinged to the end of the frame, is swung over to rest on the part 17, the blade being placed on the strip with pins 19 thereon projecting through the holes in the blade, and the frame part 6 is then closed over so that its central channel portion rests on the blade with the pins projecting through holes 19<a>, the parts being locked by a hinged catch, which engages an undercut part of one of the pins. When used for a single-edged blade, the guide member is turned over, the portion 18 receiving the backing of the blade, the strip 14 and the part 6 then being closed over the blade. The rollers 2, 4 are linked together by strips 20 on their spindles, and the rollers 3, 5 are similarly linked by strips 21, the strips, in conjunction with the shape of the slots 13 causing the respective rollers to move into and out of contact with the blade on reversal of the movement of the device ; flanges 32 provide bearing for the spindles 12, and springs 31 assist the movements of the rollers. A device for singleedged blades only has the frame in two parts hinged together about the axis of an idler roller, two stropping rollers only being used and the blade being held between the frame parts ; the frame may be in one piece. The rollers may have oblique ends engaged by pins 30 in the frame so that the rollers reciprocate axially during rotation, or threaded rollers and spindles may be employed to give the reciprocation ; the reciprocation may be brought about merely by providing end play for the rollers. The device may be adapted for stropping double-edged blades only.