baber/WOPTO huggingface dataset:
Patent GB-687514-A (GB)
Title: Improvements in impellers for centrifugal pumps
IPC: F04D29/22
Filed: 1950-08-15
Abstract: 687,514. Centrifugal pumps. OAKLEY, J. L. D. (Fairbanks, Morse & Co.). Aug. 15, 1950, No. 20261/50. Class 110(i) A centrifugal pump impeller comprises a body provided with at least one passage of generally helical form and of a length greater than one complete turn, extending between an axially positioned inlet and an outlet in the periphery of the body. In a centrifugal pump suitable for handling sewage or other fluids containing solid matter, the impeller 20, Fig. 6, which is preferably of one piece construction, has a suction inlet 22 leading into a passage 35 which extends in a generally helical manner, with increasing radius, until it opens into the impeller periphery as at 38, and continuing until the bottom surface 39 of the passage merges into the peripheral surface. Instead of being circular as shown, the cross-section of the passage 35 may be elliptical or hexagonal, and its area may vary along the passage. There may be two helical passages, affording an inlet at each side of the impeller. The impeller may be balanced by coring- out, as at 45. Alternatively, a counterweight 47, Figs. 9 and 10, can be used. It is shaped to act as an impeller for ejecting matter tending to leak into a chamber 48 through a gap 49.
Patent GB-335636-A (GB)
Title: Improvements in or relating to gripping tools and like articles
IPC: B25B7/18
Filed: 1929-07-02
Abstract: 335,636. Osborn, F. J., and Wood, N. F. July 2, 1929. Nutcrackers comprise a pair of handles A, B connected by a toggle link C and carrying jaws a, b in fixed relation to the handles, the jaws being shaped as shown in Fig. 1. The inter-jaw space may be adjustable by a member F, Fig. 3, in screw-threaded engagement with one jaw. Serrations K are provided on the handles.
Patent GB-648687-A (GB)
Title: Improvements in means of the steam trap type for separating liquids from gas or vapour under pressure
IPC: F16T1/16
Filed: 1947-07-28
Abstract: 648,687. Steam straps. YARNALL-WARING CO. July 28,1947, No. 20310. Convention date, Nov. 22, 1940. [Class 64(ii)] [Also in Group XXIX] In a trap for separating a liquid from gas or vapour under pressure, e.g. condensate from steam, inlet and outlet orifices 36, 37, Fig. 1, having closure valves 26, 27 respectively, and an intermediate control chamber 21 are provided, and through the orifices and chamber the main condensate discharge flows until the temperature is sufficient to cause vaporization and increased pressure in the control chamber which reduces the flow by moving the valves to closure, means being provided to ensure continuous leakage through the trap when the valves are otherwise closed. The leakage is provided by arranging that the valves never close wholly but leave an opening 29 or by means of an opening which may be formed by grooves as at 30 or openings as at 98, 144 in Figs. 5, 9 in the seats or valves so that the control chamber temperature and pressure are maintained. In the trap shown in Fig. 1, condensate at line pressure opens the inlet valve 26 and in so doing opens the outlet valve also, by pivoting the loose valve disc 27 on a pin 56. The relationship between the valves is adjusted by means of a screw 57. Various forms of the trap are illustrated and described. In one modification the valve disc 27 is replaced by a valve ball, Fig. 11 (not shown). In some the valves are rigidly interconnected, e.g. as in the example shown in Fig. 6 in which a piston 114 controls the valves, the connection 110 being pivoted at 111. The valves 94, 99 are not connected in Fig. 5, and in Fig. 10 a truncated cone 152 forms a compound valve contacting three fixed seats 153, 154, 155 and enclosing the control chamber 162. In Fig. 9, the dashpot, constituted by a cylinder 143 and a fixed piston 145, communicating with the control chamber 149 may be replaced by a bellows. The size of the orifice areas and the control chamber pressure at any stage of the operation are related by a formula which is given. Specification 432,385 is referred to.
Patent GB-655262-A (GB)
Title: Improvements in or relating to rotary brushes
IPC: A46B13/00
Filed: 1947-07-28
Abstract: 655,262. Rotary brushing stocks. OSBORN MANUFACTURING CO. July 28, 1947, No. 20364. Convention date, May 14, 1940. [Class 19] A rotary brush comprises a plurality of annular brush sections mounted on discshaped adapters, having at their peripheries arms extending axially to seat adjacent brush sections and finally extending radially to embrace the sections. The adapted arms may extend axially from a point radially beyond the body of the adapter whereby ventilating openings are provided. In one modification the brush may comprise a plurality of said brush sections mounted on a single disc shaped adapter having arms of any of the forms mentioned. In a second modification a single brush section is mounted on a single discshaped adapter having arms extending axially from a point radially beyond the body of the adapter and finally extending radially to embrace the section. In ths drawing, the brush sections comprise channel-shaped rings 1 in which the bristles are held and these sections are supported on an arbor or mandrel by vibrating each section on the axially bent portions 4 of the arms 5 of the adapter 6, Fig. 4. The arms 8 are bent to form axial portions 9 and the arms 5 extend axially as at 4 in the opposite direction and have upset ends 10 to prevent sideways movement of the brush section. The portions 11 of the arms extend beneath the next adjacent section and the ends 14 are upset to embrace said adjacent section. These arms 11 may, however, extend to seat and finally embrace a number of sections. There is ample space between the arms of the adapter for passage of the axially extended portions of arms 8 of an adjacent adapter and these openings aid to ventilate the brush during use while the web 6 of the adapter may also be perforated or skeletonized. The brush may be built up of any number of sections, the adapter of the final one having the ends 14 cut off and the portions 11 upset. The. complete brush may be secured on the arbor or mandrel by means of nuts, washers and locking rings. As illustrated in Figs. 2 and 6, end flanges 15 having apertures 16 and comprising unitary castings of a light metal, such as an aluminium alloy, may be used to support the sides of the brushes on the mandrel and these flanges are held in position by large nuts threaded on the mandrel. The channel bases are supported on annularly disposed seats 17 on said flanges and the apertures 16 are desirably in alignment with the ventilating openings of the brush.
Patent GB-1089809-A (GB)
Title: Additives for bright nickel plating baths
IPC: C25D3/16
Filed: 1966-05-09
Abstract: Aqueous acidic nickel electro-plating baths contain acetylenic-olefinic esters comprising the reaction product of at least one mole of an olefinic dicarboxylic acid with at least one mole of an acetylenic alcohol of formula RC ­ C. CH2 (O CH2 CH2)n OH wherein R is hydrogen, CH3- or HO(CH2 CH2O)n CH2-, n is 0, 1 or 2 and n is O where R is hydrogen or CH3- (see Division C2).  Examples describe baths containing between 0.0001 and 1 gm. of ester per litre with other additives including boric acid, saccharin, brombenzene sulphonic acid, napthalene trisulphonic acid, sodium lauryl oxyethyl sulphate, toluene sulphonamide, sodium lauryl and octyl sulphates, vinyl benzenesulphonic acid, benzene disulphonate, alkyl-2-vinylpyindium bromide with nickel sulphate and chloride.ALSO:The invention comprises acetylenic-olefinic esters prepared by reacting at least one mole of an olefinic dicarboxylic acid, e.g. maleic acid or anhydride, with at least one mole of an acetylenic alcohol of formula RC­C.CH2.(OCH2CH2)nOH wherein R is hydrogen, CH3-, or HO(CH2CH2O)nCH2-, n is 0, 1 or 2 and n is O when R is hydrogen or CH3-.  Propangyl alcohol; 1-hydroxy-butyne-2,3; 1,4-butynediol; bis-(hydroxyethoxy) 1,4-butyne and higher ethylene oxide adducts of 1,4-butynediol are mentioned and the esters may be di- or mono-esters and may be monomeric or polymeric.  The esters or their salts with nickel, sodium potassium, lithium or magnesium may be used as additives in nickelplating baths (see Division C7).
Patent GB-352246-A (GB)
Title: Improvements in or relating to conveyors, shoots and hoppers
IPC: B65G39/073
Filed: 1930-07-07
Abstract: 352,246. Strainers. WILSON, G. G., Bosworth, Chevet Lane, Sandal, Wakefield, and GOODALL, CLAYTON & CO., Ltd., Pepper Road, Hunslet, Leeds. July 7, 1930, No. 20492. [Class 46.] The bottom of a conveyer, shoot, or hopper for material which requires spraying, e.g. hot coke from retorts, is provided near the delivery end with drain holes 4 which are kept clear of deposit by rollers 5 rotated by the movement of the material or driven by the driving motor of the conveyer chain 3. The rollers may be roughened or corrugated.
Patent GB-1101136-A (GB)
Title: Walled pallets
Inventor: BERRYMAN RONALD ARTHUR
IPC: B65D19/38
Filed: 1964-05-19
Abstract: 1,101,136. Collapsible box pallets. HORVILLE ENGINEERING CO. Ltd. 26 April, 1965 [19 May, 1964], No. 20626/64. Heading B8H. A wall unit for a pallet comprises four walls 5a to 5d hingedly connected together by metal sleeves 6 so that the unit can be folded flat when not in use. The walls 5a, 5c each have a pair of lugs 7 welded to the bottom horizontal member of the wall frame and braced by a member 8. The wall unit is formed into an enclosure by inserting the lugs 7 between the deck 1 and bottom frame 3 of the pallet, where they are a close fit, and fastening the free frame uprights by passing pins 10 through eyes 9. Strips 11 hinged to the upper corners of the walls can be swung into position across the corners of the enclosure if it is required to stack pallets in tiers. One of the walls 5a may be constructed so that its upper section can be folded about line 12 to facilitate loading or unloading.
Patent GB-404705-A (GB)
Title: Improvements in oil firing arrangements
IPC: F24C5/00
Filed: 1932-07-22
Abstract: 404,705. Heat-accumulator stoves; burners. LAVAL, C. G. H. DE, 101, Karlavagen, Stockholm. July 22, 1932, No. 20715. Convention date, July 24, 1931. [Classes 75 (i) and 126.] Apparatus heated by liquid fuel comprises a heat - insulated heat-accumulator 6, of good heatconducting properties, adapted to be heated by liquid fuel, the supply of which is automatically controlled, either alone or together with the supply of combustion air, in accordance with the temperature of the accumulator. Preferably the oil, or air, or both, are heated by passage through conduits heated by the accumulator. In the hot-plate cooking stove shown, oil is fed through a conduit passing through the accumulator to a tray burner 5, the air being also preheated in a passage 10. A thermostat 12, subject to the temperature of the accumulator, controls both the oil and air supplies. Preferably the thermostat is arranged so that it entirely cuts off the oil and air supplies at a predetermined maximum temperature, and opens them again fully when the temperature falls to a minimum value sufficiently high to ensure re-ignition of the fuel, the arrangement being such that the most favourable conditions for combustion occur when the oil and air supplies are fully open. The oil supply channel may be enclosed in the air supply channel, or the air may pass over the surface of the oil. As shown in Fig. 1, an insulating sleeve 11 around the oil supply conduit, or a portion of it, may be used to control the heat transferred to it from the accumulator ; alternatively an air or vacuum space may separate the conduit and accumulator The heat transfer surface may be made variable by the use of an adjustable sleeve around the conduit and in metallic contact with the accumulator. Further, a number of channels for the oil or air, or both, may be provided, so arranged that by selection of a suitable channels or combination thereof the required degree of heating may be attained. The accumulator may bo of cast-iron, aluminium, or the like, and may have embedded in it rods, nettings, or the like of a more heat-conductive metal such as copper. Another form of apparatus is described in which two burners are employed, one serving to heat the accumulator and the other for heating an external object, such as a boiler, the air supply to the first burner, and both air and oil supplies to the second burner, being heated in conduits in the accumulator ; the oil and air supplies to the first burner are thermostatically controlled as in the example above described.
Patent GB-294149-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02B25/14
Filed: 1928-07-17
Abstract: 294,149. Chedru, G. E. July 18, 1927, [Convention date]. Cylinders, combustion chambers of, arrangement of igniters in and baffles for guiding charge. - In a twostroke-cycle engine, one side of the baffle on the piston face, and the cylinder head, are so formed that the combustion chamber c is substantially hemispherical, and the other side l of the baffle closely approaches the cylinder head. The sparking plug is located at d, and the edge of the cylinder head is slightly out of line with the cylinder bore, as shown, a ridge k being provided adjacent the face j.
Patent GB-868453-A (GB)
Title: Improvements in or relating to typewriters and the like including tabulating mechanisms
IPC: B41J25/18
Filed: 1958-06-27
Abstract: 868,453. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 27, 1958 [July 2, 1957], No. 20747/58. Addition to 803,086. Class 100(4) A modification of the typewriter or like machine claimed in the parent Specification wherein sensing means for data recorded on a work sheet co-operates with a tabulating mechanism to arrest the carriage comprises sensing means movable between operative and inoperative positions. In the embodiment described the sensing means controls the operation of a tab check lever 38. which engages tab stops 46, Fig. 4, selected ones of which, e.g. every third stop, are moved to an operative position before using the device as by a key rotating a shaft 88 having a cam member 86 which engages and moves those stops 46 not having a groove 84. Depression of a key 10, not shown, acts through a cam and power roll mechanism, pull rod 28, and crank arm 30 to rock the tab lever 34 about a stud 36 to an operative position. Movement of the tab check lever 38 and a rebound check lever 50 is however prevented by a latch blade 60 the lever 34 moving relative to the lever 38 about a pin 40 against a spring 43. The tab lever 34 also acts on an operating lever 160 to move a sensing member 130 to an actuated position in which its contact buttons engage springs 124, 125 of a contact member 122 to complete the electric circuit of the sensing means so that when its senses a mark on a record form a magnet 78 is energized which rocks the latch blade 60 to release the tab and rebound check levers 38, 50 to allow them to engage the next set tab stop to arrest the carriage without rebound. As the cam and power roll complete the cycle started by the initial depression of the key the tab lever 34 and the sensing member 130 are returned to their initial position by springs 176, 178. U.S.A. Specification 2,818,961 also is referred to.
Patent GB-1500604-A (GB)
Title: Heater
IPC: F23J11/00
Filed: 1975-05-15
Abstract: 1500604 Baffles; burner fired fluid heaters LUMMUS CO 15 May 1975 [22 May 1974 21 Aug 1974] 20751/75 Heading F4B In a fluid heater, particularly a process heater for reforming or pyrolysis of hydrocarbons, of the type having rows of fluid carrying tubes 7A within a radiation chamber 1 and a convection chamber 12 above and offset from the radiation chamber, ducts 8 are arranged parallel to the tube rows at the top of the radiation chamber to receive gases from the radiating heaters, e.g. burners and direct them into the convection section, so as to ensure adequate heating of the top part of the tubes farthest from the convection chamber. The ducts 8 are made of metal of circular, polygonal or triangular section, and are spaced apart to allow the gases to enter the duets, which increase in diameter towards the convection section Fig. 7. The duct sections may have a decreasing number of inlet apertures toward the convection section (Fig. 8) and are connected to the radiation chamber roof by bolts 20, Fig. 10, having springs 22 to take up thermal expansion.
Patent GB-176748-A (GB)
Title: Improvements in and relating to backing off lathes
IPC: B23B5/42
Filed: 1921-08-05
Abstract: 176,748. Zehrlaut & Co., Dr. H. March 11, 1921, [Convention date]. Backing-off lathes.-In a lathe for backing-off milling cutters &c. the work is rotatably mounted' in a member which is oscillated to bring the work into and out of engagement with a fixed tool, adjustable cam mechanism being provided to control the depth of the backing-off cut. The driving-spindle b carries a toothed wheel c engaging a wheel f on a spindle f<1> journaled in an oscillating frame d pivoted at points e and transmitting motion through gears h, l to a camdisc n. The tool p is fixed in a slide q and the cam-disc co-operates with a cam-plate o having a concave portion, the position of which is adjustable by a scale (not shown) to vary the depth of the backing-oK cut. The centre of oscillation e of the frame is outside the wheel c so that a lead or acceleration is imparted to the work k on the forward or cutting stroke with a corresponding lag on the back stroke. The working speed of the machine may thus be increased without unduly reducing the time necessary for the withdrawal of the work from the tool after the cut. Lateral backing-off may be effected by a second tool p on the slide q which is laterally displaced during the forward movement of the frame by means of a cam s<1> co-operating with a pin r on the slide.
Patent GB-208354-A (GB)
Abstract: 208,354. Coventry Automatic Telephones, Ltd., and Puckette, C. C. Nov. 25, 1922. Automatic and semi-automatic exchange systems and apparatus. - The driving magnet of a line switch is also used as a switching relay, its armature in its attracted position closing contacts to extend the calling line to the switch wipers after an idle trunk has been seized. When the associated subscriber's line is called, the cut-off relay is energized in series with the driving magnet, which, however, remains inert and holds the line wires disconnected from the line switch wipers. In the arrangement shown in the Figure, when a call is made over the line 20, 21, on the energization of the line relay 1, the test wire 22 is earthed at armature 2, and a series circuit is closed for the driving magnet 11 and a highresistance winding 10 of the cut-off relay 4, a point between the winding 10 and the magnet 11 being connected to the test wiper 19 over armatures 3, 7. As long as the wiper 19 rests on an earthed busy contact, the winding 10 is shortcircuited, and the magnet interrupts its own circuit at armature 12 and advances the wipers, but when an idle line is reached the out-off relay 4 pulls up and the high resistance of its winding 10 prevent further operation of the magnet 11. A spark-quenching circuit 16 consisting of a condenser and a non-inductive resistance is placed across the winding of the magnet 11. The response of the relay 4 disconnects the line relay 1 and the test wiper 19, and at armature 8 again completes a circuit for the magnet 11 in series with a lowresistance winding 9 of the cut-off relay 4. The magnet 11 again operates and extends the line wires 20, 21 and the holding wire over contacts 13 - - 15. Since the line switch is of the type in which the wipers are advanced on the retraction of its armature, and as the self-interrupting contacts 12 are short-circuited over the contacts 8, the operation of the magnet 11 does not further advance the wipers at this time. Before the relapse of the slow-release line relay 1, earth is returned over the test wiper 19 from the seized switch ahead, and holds the magnet 11 and the relay 4, the winding 10 of which is of such resistance that with the magnet 11 in series the latter will not operate, but will remain held once it has been operated. When the line 20, 21 is called over the conductors 23, 24, the usual earthing of the test wire 22 completes a series circuit over the high-resistance winding 10 of the cut-off relay 4 and the magnet 11. The relay 4 responds in this circuit and disconnects the line relay 1, but the magnet 11 remains inert and holds the line switch wipers disconnected. According to a modification, when the line relay 1 and the cut-off relay 4 are operated at the same time on a call being made over the line 20, 21, a small additional magnet is energized which mechanically locks the armature of the driving magnet 11 and renders it unnecessary for this magnet to be held by the current through its own winding and the winding 10 in series.
Patent GB-935057-A (GB)
Title: Valved bags
Inventor: SCOTT ALLAN HARPER
IPC: B65D30/24
Filed: 1962-05-30
Abstract: 935,057. Valve bags. BRITISH VISQUEEN Ltd. May 30, 1962, No. 20860/62. Class 94(2). A thermoplastic sheet 7 extends over the outside of the common seam between the margins of a flat bag of thermoplastic sheet and a valve tube 3 included in the seam and formed by pushing in a flap 3 folded about a line 2. The sheet 7 may be welded to the bag at 8. The valve tube 3 may have welded to it at 5 a thinner extension 4. Suitable materials for the bag and valve include polythene, polypropylene and polyvinyl chloride, and the seams are formed by the application of heat and pressure or by high frequency electric welding. Non-stick sheets are used to prevent the formation of undesired welds.
Patent GB-573637-A (GB)
Title: Improvements in or relating to the regulation of the unwinding of yarn
IPC: B65H59/08
Filed: 1943-12-13
Abstract: 573.637. Yarn supply to knitting-machines. VANDERHOOVEN, C. C. Dec. 13, 1943, No. 20889. Convention date, May 4, 1942. [Class 74 (ii)] [Also in Group IX] A device for preventing highly twisted rayon thread &c. from " kinking" during unwinding from a package on its way to a knitting &c. machine, comprises a collapsible means, e.g., an apron 5 of rayon net, which constantly and progressively contacts the outer layers of the package to prevent "slack" therein, further means, e.g., a grommet 7, being provided in the device to define an opening through which the thread is withdrawn. The apron may be supported only by the supply package or by a metal standard comprising a base 11 and an upright support 12 bent to hold the grommet 7.
Patent GB-721115-A (GB)
Title: Improvements in or relating to induction well logging apparatus
IPC: G01V3/26
Filed: 1953-07-29
Abstract: 721,115. Electric well-logging apparatus. SCHLUMBERGER WELL SURVEYING CORPORATION. July 29,1953 [Aug. 5,1952], No. 21032/53. Class 37. Well-logging apparatus in which the earth formations surrounding the bore-hole are investigated by noting the signals in pick-up coils located in the bore-hole is characterized in that the apparatus in the bore-hole is supplied with a plurality of substantially vertical fins of insulating material, whereby eddy-currents in the conductive drilling liquid are reduced. As shown (Fig. 1), inside a bore-hole 11 containing inductive drilling liquid 12 is located a support 18 containing a series of coils 13-17 in slots on the support, coils 13, 15, 16 being fed in combination from an oscillator inside the support 18, and coils 14, 17 being connected in series opposition to indicating apparatus 31. Three longitudinal, insulating, flexible fins 23, 24, 25 are attached to the support 18, either tangentially or radially, thereby restricting the eddy currents in the conducting fluid 12. Each fin 23, 24, 25 may be discontinuous, comprising a section opposite at least each of the principal coils, with or without gaps between the sections, to facilitate passing the apparatus through irregular holes. The fins also help to maintain the apparatus central in the bore-hole.