baber/WOPTO huggingface dataset:
Patent GB-1012397-A (GB)
Title: Improvements in or relating to well packers
IPC: E21B33/12
Filed: 1963-04-29
Abstract: 1,012,397. Well tools. BAKER OIL TOOLS. April 29, 1963 [April 30, 1962], No. 16709/63 Heading E1F. A well packer comprises elastic packing 22, an abutment 13 or 19 adjacent one end of the packing, a rigid ring 32 engaging less than the full cross-section of the packing prior to setting of the packer, and an expandable member 38 in engagement with the ring and the abutment. The ring prevents fluid leaking between the packing and the casing B when the packer is set, and between the packer body 10 and the packing as the packer is run into the casing. The expandable member, which comprises two metallic split rings 39, 43, prevent extrusion of the packing past the abutment when the packer is set. The interior of the ring may have a projection, or the interior or exterior of the part 30 of the packing may have a projection. The ring may have an inwardly extending flange which is not engaged by the packing.
Patent GB-544086-A (GB)
Title: Improvements in removal of silica and other impurities from water
IPC: C02F1/52
Filed: 1940-11-23
Abstract: 544,086. Purifying water. PERMUTIT O., Ltd. Nov. 23, 1940, Nos. 16844 and 16845. Convention dates, July 3 and July 24. [Class 461 Silica is removed from water in the treatment of water with lime by making the sludge formed rich in magnesium oxide or hydroxide and agitating the water with the sludge or causing it to flow through a suspension of the sludge. The treatment is preferably carried out at a temperature greater than 50<SP>o</SP>C. Suitable sludge is obtained by using dolomitic lime, or by adding magnesium oxide or hydroxide to the water or by increasing the ionic magnesium content of the water before the treatment with lime. The ionic magnesium content may be increased by adding magnesium oxide, hydroxide or carbonate, and treating with carbon dioxide, if the water does not contain enough free carbon dioxide and bicarbonate ions to form magnesium bicarbonate without additional carbon dioxide. The ionic magnesium content may be increased by agitating some of the sludge with the water before adding the lime. Fig. 1 shows suitable apparatus comprising a tank 12 with an inner mixing compartment 11. Raw water supplied by a pipe 10 to the compartment 11 is mixed with sludge, circulated by a pump 15 from the bottom of the tank 12 by, an agitator 17. The mixture overflows from the compartment 11 and is mixed with lime or dolomitic lime, with or without soda ash, supplied through a pipe 18. Clear water rises within an inverted funnel 19 and is discharged through a pipe 20. In the arrangement shown in Fig. 2, the preliminary admixture with sludge tubes placed in an external tank 117, which has an agitator 118 and an overflow connection 123 to the space within a baffle 124 in the main tank 120. The tank 120 is fitted with an agitator 125. Softening agent is supplied through a pipe 126. Clear water rises outside the baffle 124 to a discharge pipe 127. Sludge is delivered to the tank 117 by a pump 221 from a pocket 119 on the wall of the tank 120. In a further form of apparatus, shown in Fig. 3, raw water supplied by a pipe 135 and sludge, circulated through a pipe 137 by a pump 138, are mixed in a chamber 131, which has a high speed agitator 133 on a hollow shaft 134 surrounding the shaft of the agitator 130 within the baffle 129 in the main tank 128. There is an overflow connection 141 from the chamber 131 to the space within the baffle. Carbon dioxide or flue gas may be introduced into the chamber 131 through a ring 139. Lime is supplied through the pipe 142. Used sludge may be withdrawn periodically or continuously through an outlet 144 associated with a pocket 136. In a form of apparatus very similar to that shown in Fig. 4, a sludge thickener is arranged in the pipe 137, water separating in the thickener being returned to the' space within the baffle 129.
Patent GB-502559-A (GB)
Title: Improvements in or relating to electric heating apparatus suitable for cooking and like purposes
IPC: F24C15/10
Filed: 1937-06-17
Abstract: 502,559. Supply systems for heating resistances. BERRY, A. F. June 17, 1937, No. 16877. [Class 38 (iv)) [Also in Group XI] Switching control.-Electric heating-apparatus suitable for cooking, heat radiating, &c. has heating elements of coiled resistance wire provided with a thin film of vitreous enamel, which are arranged as a main hot plate G and a supplementary hot plate F, Fig. 1. The plate F is fed by the 100 volt section of a 230 volt regulating winding D, whilst the plate G is connected across the 230 volts through a switch A<1>, by which the voltage across the plate G may be reduced to 130 volts and thence by 10 volt stages to 50 volts. In a modification. Fig. 2, the voltage across two hot plates F<1>, G<1>, may be varied simultaneously by a switch A<4> when the switch f is closed. A further range of heating wattages is obtainable when the switch f is opened. Specifications 497,831 and 497,924 are referred to.
Patent GB-236563-A (GB)
Title: process for the manufakture of new ureas of p-oxy-m-aminophenylarsinic acid and amino-acidyl derivatives thereof
IPC: C07F9/74
Filed: 1925-07-01
Abstract: A symmetrical urea of p-oxy-m-aminophenylarsinic acid is obtained by reacting thereon with phosgene in alkali solution at an elevated temperature, preferably 25-80 DEG  C.  The starting material may be aminoacidylated one or more times and the product then treated with phosgene.  The resulting compounds possess enhanced therapeutic properties.  According to the examples, (1) an alkali solution of p-oxy-m-aminophenylarsinic acid is treated with phosgene, preferably in the presence of sodium acetate, at a temperature of 50 DEG  C.; on acidification, the symmetrical urea of p-oxy-m-aminophenylarsinic acid is obtained; (2) by reacting upon p-oxy-m-aminophenylarsinic acid with m-nitrobenzoyl chloride, m-(m-nitrobenzoylamino)-p-oxyphenylarsinic acid is obtained, which yields the corresponding amino compound on reduction with ferrous salt; treatment with phosgene produces the symmetrical urea of m-(m-aminobenzoylamino)-p-oxyphenylarsinic acid; (3) p-oxy-m-aminophenylarsinic acid is first treated with m-nitro-p-toluyl chloride and reduced, and the product further treated with m-nitrobenzoyl chloride and reduced; on reacting upon the resulting compound with phosgene, the symmetrical urea of m-(m-aminobenzoyl-m-amino-p-toluylamino)-p-oxyphenylarsinic acid is obtained.
Patent GB-1348528-A (GB)
Title: Methods of and apparatus for growing crystals from solutions
IPC: C30B19/06
Filed: 1971-05-25
Abstract: 1348528 Crystallizing from a liquid WESTERN ELECTRIC CO Inc 25 May 1971 [27 May 1970] 16989/71 Headings BIG and B1S A solution is impelled by centrifuged force into contact with a substrate to grow a crystalline layer thereon epitaxially or otherwise. As shown, a solution 30, for example, of GaP or Ga As in Ga, which may be doped with oxygen and zinc, is heated by RF heaters 45 or 46. At the appropriate temperature, vessel 40 is spun about its axes 43, so that the liquid rises to immerse substrates 22, leaving the impurities behind. The position of the liquid surface during crystal growth is shown at 55. Impurities which either float 56A or sink 56B may be further separated by using an inner container 70, Fig. 6F, from which the melt escapes through holes 73 to immerse the substrates 22. The substrates may be free to move in the radial direction 62 (Fig. 4). Thus, a substrate which is denser than the solution will seat against surface 52 and be heated by heater 46 so that the growth face faces the direction in which the temperature gradient increases. A substrate which is less dense than the solution will seat against surface 60 and be heated by a heater 45. When crystal growth has been completed, the rotation is halted, and the solution falls and may drain into a well (67) or to a cup (90, Fig. 6C) surrounding vessel 40. Instead of spinning vessel 40, the solution may be rotated by an impeller immersed therein.
Patent GB-310700-A (GB)
Title: Improvements in photographic reproduction apparatus
IPC: G03B27/32
Filed: 1928-06-12
Abstract: 310,700. Cohen, A. June 12, 1928. Enlarging, copying, and reducing.-In an enlarging apparatus of the kind having a fine or coarse adjustment of the focusing lens and two lighting systems for reproducing both opaque and transparent negatives, the negative holder f is horizontally adjustable in two directions a t right angles to one another. The screen t is mounted on a support adjustably connected by a rod u to a platform v which can be raised or lowered by counterweights x, ropes y and pulleys z. The condenser lens d is movable relatively to the lamp c. The lamps for reproducing opaque negatives are adjustably mounted on stands g, and are enclosed in reflectors h.
Patent GB-642640-A (GB)
Title: Improvements in or relating to automatic switches suitable for use in telephone or like systems
IPC: H01H67/06
Filed: 1947-03-14
Abstract: 642,640. Automatic exchange switches. AUTOMATIC ELECTRIC LABORATORIES, Inc. March 14, 1947, No. 17051/49. Convention date, March 15, 1946. Divided out of 642,586. [Class 40 (iv)] In the manufacture of a wiper unit for a uniselector, an annular hub is machined to a width slightly greater than that desired and is provided with a peripheral recess, a wiper blade of thickness less than the depth of the recess is secured therein and the hub is then pressed to the required axial dimension. Pairs of wiper blades 33, Figs. 4, 5 are spot-welded in the peripheral recesses 32 in the hubs 25 which are mounted with intervening insulating washers 28 on an insulating sleeve 24. Recesses 31 on the inner edges of the hubs diminish leakage. The switch described is identical with that of Specification 642,586.
Patent GB-1315288-A (GB)
Title: Thermographic imaging of a planographic printing plate
IPC: B41C1/10
Filed: 1972-04-13
Abstract: 1315288 Thermographic materials and transfer processes COLUMBIA RIBBON & CARBON MFG CO Inc 13 April 1972 [12 July 1971] 17094/72 Heading G2C [Also in Division B6] A thermographically imageable translucent or transparent member, which can be used either as a planographic printing plate or as a projection transparency, is assembled face to face with a plastics sheer 30 carrying a heat-transferable oleophilic composition, so that reflex exposure with an infrared source 40 causes the members to be imaged with the oleophilic composition in the pattern of markings 12 on an original 10. Preferably the sheer 30 is of polyethylene terephthalate, and carries a coating of carnaube and paraffin waxes with polyethylene, optionally including a dyestuff. The imageable member is made up of an optional paper support sheet, a heat-shrinkable plastics film base 21, of polystyrene with a polyvinyl alcohol coating, of uncoated polystyrene or of polyvinylidene chloride, polyethylene, polypropylene or styreneacrylonitrile, and a surface layer 22. The layer 22 comprises by weight 1 part of a hydrophilic colloid binder material such as polyvinyl alcohol, an insolubilizing agent, such as glyoxal, 2 to 5 parts of colloidal silica having an average grain size of 40 to 70 millimicrons and, optionally, up to 1 part of a filler such as clay.
Patent GB-327059-A (GB)
Title: Improvements in or relating to pumping units
IPC: F04C2/324
Filed: 1929-06-04
Abstract: 327,059. Jaworowski, J. F. June 4, 1929. Glands and caps; packing, non-metallic; followers, bushes, and the like. - In a rotary petrol pump the shaft packing 14 is spring loaded, the pressure on the spring being increased by screwing down the cap 13. A lining tube above the packing is bell-mouthed at the top to retain the screw-cap on the tube. Petrol collecting in the space beneath the packing is drained back to the suction side of the pump by means of a channel 41.
Patent GB-604219-A (GB)
Title: Improvements in and relating to centrifugal pendulums
IPC: F16F15/14
Filed: 1945-07-05
Abstract: 604,219. Torsional-vibration dampers. BIRKIGT, L. July 5, 1945, No. 17233. Addition to 577,803. [Class 108 (iii)] The centrifugal pendulum of the parent Specification in which a pendular mass is suspended by at least two flexible connections from a support integral with the rotary member which is to support the pendulum, the connections winding and unwinding themselves during pendular oscillation on convex supporting surfaces integral respectively with the mass and the support, is modified by the formation of the mass and/or the support by a group of at least three plates united in a single block. The pendular mass comprises plates 19, 20, 21 united by rivets 25 and suspended by the flexible connections in the form of spring steel strips 4, 4<SP>1</SP> to the support comprised by plates 22, 23, 24 united by rivets 25<SP>1</SP> to the rotary member 2. Projections 7, 8 on the plates 19, 24, 20 engage recesses formed by the bevelled extremities of the plates 22, 21, 23 and the thickness of each of the latter is slightly greater than that of the respective plate 19, 24, 20 to allow free movement. Specifications 379,165, 382,787, [both in Group XXVI], and 444,222 are referred to as describing prior constructions of centrifugal pendulums.
Patent GB-146161-A (GB)
Title: Valve-spring lifters with articulated jaws for mounting and demounting valves of internal combustion engines
IPC: B25B27/26
Filed: 1920-06-24
Abstract: 146,161. Charbonnier, P. Aug. 20, 1918, [Convention date]. Pliers; prizing-tools.-A tool for compressing the springs of internal-combustion engine valves to facilitate the insertion or removal of the valves comprises two pivotally connected members A, B having long arms b, d forming handles and short arms a, c to which are pivoted angular members C, D comprising jaw parts h, h<1> and arms i, i<1> provided with slots j engaging pins g on the handles b, d. The jaws h, h<1> are U shaped in plan. When the handles b, d are pressed together, the jaws move apart parallel to each other, and the jaws may be retained in any position by a chain q.
Patent GB-938973-A (GB)
Title: Improvements relating to water closets
IPC: E03D5/00
Filed: 1961-05-11
Abstract: 938,973. Pump-discharged closets. E. A. BRUCE. Sept. 29, 1961 [May 11, 1961], No. 17258/61. Class 26. A water closet comprises a bowl 2 having a lid 4 which is airtight when closed and an inlet to be connected to a water supply by a pipe 10, and a pump 9a for discharging excrement from the bowl 2 and creating a partial vacuum therein to cause entry of flushing water through the inlet into the bowl 2. The pump 9a is manually operable or power-operated, the inlet being incorporated with an air-bleed orifice 11 to cause spontaneous entry of water as a spray. The seat 3 and lid 4 of the bowl 2 each have a sealing gasket(6, 7), of neoprene therebeneath. In the application shown the inlet and exhaust pipes 10, 9, which may have stop cocks 14, terminate in fittings 12 in the hull 13 of a marine craft. According to the Provisional Specification a high-speed ventilation fan could be used in place of a pump. Specification 845,110 is referred to.
Patent GB-183681-A (GB)
Title: Improvements in fire grates
IPC: F23H13/00
Filed: 1921-06-25
Abstract: 183,681. Leigh, T. R. June 25, 1921. Grates.-A grate adjustable for height and width comprises a rectangular bottom, Fig. 1, and two similar side grates, Figs. 2 and 3, having horizontal bars b. The ends of the bottom grate pass between the bars b, slots a, in the downwardly-projecting side rails engaging over the bars and allowing the side grates to be adjusted towards or from each other. The height of the bottom grate is varied by supporting it on different pairs of the bars b.
Patent GB-496868-A (GB)
Title: Improved construction of electrical socket elements as employed in electrical coupling and fuse assemblies
IPC: H01R13/115
Filed: 1937-06-11
Abstract: 496,868. Two-part couplings. DAVEY, L. E. W. C. N. June 11, 1937, No. 17470/38. Divided application. [Class 38 (i)] A pair of sockets 5 are formed by folding a blank 1 along its median line and forming halfround portions 5, 5a at its ends. The shank 3, 3a forms a resilient support for the sockets and may be bent to allow the sockets to be built into a supply fitting having two sets of sockets of different ratings. Notches 7 form a recess to locate a terminal having a slot that fits tightly over the shank 3, 3a. By a similar method a socket 23, Fig. 9, carrying fuse clips 24, 29 is produced from a blank, the ends of the two halves of the blank being of different length so as to produce laterally projecting clips spaced apart. Instead of bending a blank, a pair of strips corresponding to the two halves of the blank may be secured together. According to the Provisional Specification, a single socket may be produced from a blank by a similar method.
Patent GB-356748-A (GB)
Title: Improvements in or relating to ball-and-socket joints adapted for use in tip-waggons and for other purposes
IPC: B60P1/12
Filed: 1930-06-06
Abstract: 356,748. Tipping-apparatus. R0BERTSHAW, M., Milshaw House, Rooley Lane, SHARP, R., 276, Allerton Road, both in Bradford, and BROCKHOUSE, J. T., Victoria Works, West Bromwich. June 6, 1930, No. 17511. [Class 78 (iv).] A ball-and-sooket joint particularly applicable to tipping-wagons, tipping platforms and the like comprises members normally secured by a detachable retaining pin passing through registering holes in both members, the hole in the ball member being formed with clearances so disposed as to permit relative angular movement in one direction only in the plane of the pin in addition to angular movements in both directions in a plane at rightangles to the said pin. The hinge joint comprises ball-and-socket members a2, b<2> attached respectively to the chassis c and body d and a withdrawable hinge pin f passing through projections e on the socket member and an aperture a<3> in the ball member. The joint may oscillate about the hinge pin f in a plane at right-angles to the pin and, to permit it to oscillate in the plane of the pin, a clearance hole a<4> is provided in the ball members and a co-operating slot a<5> in the socket member. In tipping gear such as -toggle levers the hinge joint h connecting the gear to the body is a similar joint, the hinge pin being disposed in the longitudinal axis of the vehicle. Tipping to rear or sides, is determined or permitted by releasing .the appropriate hinge joints by withdrawing the pins f which are normally retained in position by springs.
Patent GB-986204-A (GB)
Title: Epoxy compounds and flame-retardant resins therefrom
IPC: C08G59/30
Filed: 1962-05-08
Abstract: An epoxy compound, containing at least 12% by weight of bromine and hardenable with a curing agent to a flame-retardant product, is formed by reacting, preferably in presence of a catalyst which may be a tertiary amine, an epoxide, having more than one terminal epoxy group per molecule and which may or may not contain bromine or chlorine, with sufficient 4,41-isopropylidene bis-(2,6-dibromophenol) to provide 0.1 to less than 1 equivalent OH per epoxy group.  A number of suitable known epoxide starting materials are mentioned. If desired the brominated bisphenol may be reacted with caustic soda and epichlorohydrin to form a diglycidyl ether which then reacts in the same stage with residual brominated bisphenol.  In a typical example (1) the diglycidyl ether of bisphenol A was heated and stirred with 4,41-isopropylidene bis - (2,6 - dibromophenol), the mixture was cooled, trithylamine added, and heating resumed.  The product, after removal of volatiles, was dissolved in methyl ethyl ketone, or in acetone and was used to impregnate cloth for a laminate followed by curing with BF3-monoethylamine complex.
Patent GB-1364039-A (GB)
Title: Pivot joint assemblies having wear indicator means
IPC: F16C11/06
Filed: 1973-04-12
Abstract: 1364039 Ball and socket joints GENERAL MOTORS CORP 12 April 1973 [17 April 1972] 17620/73 Heading E2F A ball and socket joint comprises a housing 12 open at one end 14 and provided with a first bearing seat 16 against which bears a lower ball half 24, a stud unit 18 comprising a unitary head 20 and a shank 22 located in a plastics sleeve 25 disposed in the lower half 24 of the ball and the upper end of the housing 12 is closed by a cover 21 having an upper part-spherical bearing seat 30 a central portion of the cover 26 being provided with a tubular extension and an indicator 34 which may be pushed inwardly manually to give an indication of wear of the joint. A resilient O-ring 44 provides a seal between the indicator 34 and the cover 26. The lower end of the indicator terminates in a part-spherical surface 42 which conforms to the surface of the head 20 of the stud unit 18. When the joint is worn to such an extent that the distance "A" is reduced to zero, then the joint warrants replacement. .
Patent GB-767140-A (GB)
Title: Fruit and vegetable cooler
IPC: F25D13/06
Filed: 1954-06-16
Abstract: 767,140. Water channels. PRESSED STEEL CO., Ltd., and HILLER, R. July 6, 1955 [June 16, 1954], No. 17650/54. Class 78 (1). [Also in Group XIII] Apparatus for cooling fruit and vegetables comprises a tank 11 containing a coolant, preferably water, and a series of cooling coils 18, with a header 30 above the tank from which depend a number of nozzles 31, 32 arranged to spray coolant on to the fruit and to impel the fruit receptacles C from the loading to the unloading end of the tank. The tank is divided horizontally by a corrugated plate 23 into two compartments A and B which are connected only through a filter bed 26 at the unloading end of the tank, and vertically by removable grids 34, 35. The cooling pipes 18 are connected in any manner to, preferably, a compression refrigeration system, and are regulated by a thermostat and expansion valve housed at 36 (Fig. 3). A pump circulates cooled and filtered water from the lower compartment B to the nozzles 31 and 32. The angle and spread of the spray delivered by the nozzles may be varied. Unloading is by means of a hand-raised grid platform 37. A chemical may be added to the water to inhibit fungoid growth on the fruit or vegetables.
Patent GB-375074-A (GB)
Title: An improved anti-slipping projection for boots and shoes
IPC: A43C15/16
Filed: 1931-06-18
Abstract: 375,074. Studs for athletic and like footwear. BIRD, W. H., 33, Carlton Terrace, Wanganui, New Zealand. June 18, 1931, No. 17668. Convention date, July 1, 1930. [Class 17 (iii).] A stud 1 of rubber, rubber or other hardened composition, with an outwardly-extending base 2 for attachment to the sole 5 of a boot or shoe is reinforced by an annular metal disc 6 which is entirely embedded in, and extends throughout, the base, and has a central opening the edge of which is flared upwardly, as shown, to pass into the body of the stud. A central core 9 of rubberized cotton or similar material may further reinforce the stud. The base of the stud may be hollowed at 8 where it seats against the sole, and holes through the base and disc 6 are provided for the attaching nails or screws 4.
Patent GB-822098-A (GB)
Title: Improvements in or relating to acoustic signalling means particularly for telephone sets
IPC: G10K9/13
Filed: 1957-06-04
Abstract: 822,098. Acoustic apparatus. WESTERN ELECTRIC CO. Inc. June 4, 1957 [June 7, 1956], No. 17707/57. Class 13. [Also in Group XXXIX] An acoustic signalling device comprises a transducer 32, driven by a single-frequency input and harmonics thereof, which is coupled to a first tubular resonator 36, resonating at a first predetermined frequency above the resonant frequency of the transducer, which is in turn coupled to a second tubular resonator 37 which is of such length that the two resonators together resonate at a second predetermined frequency below the resonant frequency of the transducer, all three resonant frequencies lying within the range from 1000 to 2000 c.p.s. Specification 754,338, [Group XXXIX], is referred to.