baber/WOPTO huggingface dataset:
Patent GB-395741-A (GB)
Title: Improvements in the electrolytic manufacture of piperidine
IPC: C25B3/25
Filed: 1931-12-24
Abstract: 395,741. Electrolytic production of piperidine. ROBINSON BROS., Ltd., Exchange Buildings, Stephenson Place, Birmingham, and PARKES, D. W., Ryders Green, West Bromwich. Dec. 24, 1931, No. 35697. [Class 41.] Piperidine sulphate is obtained by electrolytic reduction of pyridine in the cathode chamber of a diaphragm cell, the catholyte containing sulphuric acid in amount 2À0-6À0 equivalents of the pyridine present. The temperature should be 70-85 C. for the lower limit of acidity and 20-50 C. for the higher limit and correspondingly for intermediate values. The anolyte consists of acid of sufficient strength to prevent loss of acid by the catholyte since such loss may cause excessive production of dipiperidyls and formation of a gelatinous precipitate : the anolyte should not, however, be of such strength as to dissolve the anodes. A suitable anolyte strength is 60-86 Twaddell, preferably 70. The level in the anode pots is maintained by addition of water or by allowing them to stand in water when not in use. The cells are lined with lead with which lead cathodes are in contact : the anodes are also of lead. The cathodes may be cooled or heated as required. The process may be inhibited by the presence of impurities such as iron and copper. Vitiated cells may be restored by filling with dilute acid and passing current in the reverse direction ; the acid is then replaced by clean acid and current passed in the normal direction. Alternatively, the cells may be cleaned with 20 per cent nitric acid until the cathodes are bright ; they are then washed and the electrodes " formed " by alternate oxidation and reduction. Piperidine is produced from the sulphate by treatment with caustic soda and distillation. The crude piperidine is dried and allowed to stand over caustic soda before final distillation. Specification 21471/98, [Class 2, Acids and salts, Organic &c.], is referred to.
Patent GB-847384-A (GB)
Title: Improvements in or relating to prop support systems for mines
IPC: E21D15/51
Filed: 1956-11-23
Abstract: 847,384. Mine roof supports. EGGEMANN, W., and CAMPENHAUSEN, E., [trading as SCHWARZ Komm-Ges., H.]. Nov. 23, 1956 [Nov. 24, 1955], No. 35825/56. Class 20(2) In a mine roof support system comprising hydraulic pit props, the pressure chambers 28 of which are connected by pipes 41, each prop has in its head 16 two differential valves which maintain its pressure chamber 28 in communication with the pipes 41 so long as the pressures in the chamber and pipes maintain a predetermined relation. One valve comprises a differential piston 29 loading a ball 35. Pressure fluid from the pipe 41 entering at a nipple 31 forces back the piston 29 to gain entry to an annular groove 24 whence it can enter the pressure chamber 28 via bores (not shown) until pressures in the pressure chambers of adjacent props are substantially equalized when the piston is closed by its spring 32. The ball 35 may be replaced by an annular projection on the piston which fits into an annular seating (Fig. 3, not shown, refers). A similar valve shown at the top of Fig. 2b connects the pressure chamber to the opposite adjacent prop. A pressure relief valve comprises a piston 52 having a cone head 50 which can also be operated by an external lever (not shown) to act as a pressure release valve. A flexible bag may be connected to an external nipple (not shown) to receive the oil from this valve. Pressure fluid is supplied to a nipple 44 of a three way control device comprising an inlet valve 46 which opens when the pressure in the system falls below the pressure of the-supply.
Patent GB-937179-A (GB)
Title: Cutting knife stack support
IPC: F16K13/00
Filed: 1961-10-06
Abstract: 937,179. Guillotine cutting - machines. MIEHLE-GOSS-DEXTER Inc. Oct. 6, 1961 [Oct. 12, 1960] ,No. 36054/61. Class 31(1). [Also in Group XXIX] The table T of a guillotine cutting machine is provided with a series of openings into each of which is fitted a valve 70 to provide a port 20, the valve comprising a chamber 79 having a seat for a ball 78, an aperture 76 and a bypass passage 82, the chamber having a port 81 communicating with a compressed air conduit 80. In operation, when the paper stack does not cover an aperture 76, the valve closes and air leaks through the passage 82 and through the aperture 76. When, however, the stack covers the aperture 76, air builds up in the aperture to open the valve and thus provide a pneumatic support for the stack. The ports 20 are interconnected by tubes 24 to a common tube 26 which is connected to the low pressure reservoir 38 of an air pump 28 by a solenoid-operated valve 42, the coil 46 being in an electrical circuit which includes a manually-operable switch 50, a circuit breaker 52 controlled by work clamp C, and a switch 66 controlled by back-gauge motor 14, the arrangement being such that compressed air is not supplied to the tube 26 during cutting and clamping or while the back gauge G is being moved to position the paper stack. U.S.A. Specification 2,771,948 is referred to.
Patent GB-1203612-A (GB)
Title: Radial piston pump or motor
Inventor: GSCHING WILHELM
IPC: F04B1/0465
Filed: 1967-08-07
Abstract: 1,203,612. Reciprocating pumps and motors. VOITH GETRIEBE K. G. Aug. 7, 1967 [Aug. 6, 1966; Feb.2, 1967], No.36192/67. Heading F1A. A rotating radial cylinder pump or motor has a two part block both parts having cylinders formed therein, the outer faces of the parts having valve ports formed therein, and the two parts are forced apart into engagement with valve members disposed at the axial ends of the block by hydraulic pressure applied to one or more chambers formed between the two parts. As shown in Fig. 1 side by side parts 3, 4 are keyed to the drive-shaft 1 and have a chamber 24 formed between them and sealed by seals 30, 33, 34 and connected by a passage 28 to the pressure port 23<SP>1</SP> by annular groove 26 and passage 25. In a modification Figs. 2, 3, 4 (not shown) the chamber is connected to both ports via a non-return valve so that the highest pressure prevails; a leak is provided between the chamber and a cylinder in each block. In the embodiments of Figs. 3, 4 (not shown) one or two pressure chambers are formed by concentric grooves and spigots. In a further embodiment Fig. 5, (not shown) an axially directed piston is disposed in bores provided in the two parts of the block and each bore is fed from the adjacent pump cylinder.
Patent GB-1467248-A (GB)
Title: Electric motors
IPC: G04C5/00
Filed: 1973-07-30
Abstract: 1467248 Electric timepieces HORSTMANN CLIFFORD MAGNETICS Ltd 12 July 1974 [30 July 1973 31 Aug 1973] 36232/73 Heading G3T An electric motor, e.g. for driving a timepiece, comprises an oscillatory element 1 which drives a rotor 2 via a magnetic coupling and which is driven by impressed electric signals having a frequency of which is less than the natural frequency of the element by f/2Q where Q is the Q-factor of the element. Self-starting and continuous rotation of the rotor are said to be thereby ensured. As shown the element 1 carries a magnet 4 one pole of which drives the rotor while the other pole co-operates with a coil 5. The signals to the coil may be derived from the A.C. mains or from a quartz crystal oscillator via a frequency divider, Fig. 4 (not shown) Various forms of magnet 4 and rotor are envisaged, and the element 1 may oscillate parallel to the rotor shaft (3), Fig. 3 (not shown). This shaft carries a loose stabilizer disc 3'. The coil 5 may co-operate with an intermediate portion of the element (1), Fig. 2 (not shown), or the latter may be a Piezo-electric multimorph bender.
Patent GB-416768-A (GB)
Title: Improvements in and relating to socks and stockings
IPC: A41B11/00
Filed: 1933-12-27
Abstract: 416,768. Stockings &c. ZILCKEN, K., 44, Wohlers-Allee, Altona - on - Elbe, Germany. Dec. 27, 1933, No. 36325. Convention date, Dec. 29, 1932. [Class 141.] Stockings or socks are provided with slits as shown in Fig. 15 so that they can yield at those parts which are subjected to the greatest strain when worn. The slits are reinforced and may be made without removing the fabric at these parts. They may be in form of parallel slits over the toe parts or may be in the instep, side sole, heel, or calf of the stocking or sock.
Patent GB-934255-A (GB)
Title: Improvements in the manufacture of bread dough
Inventor: BAKER DAVID KING
IPC: A21C1/00
Filed: 1959-10-27
Abstract: 934,255. Bakery plant. BAKER PERKINS HOLDINGS Ltd. Oct. 21, 1960 [Oct. 27, 1959], No. 36428/59. Class 28 (1). A worm mixer 22, Fig. 1, forms a brew from (a) water supplied from hot and cold tanks 10, 11 via a blender 12, float tank 24 and pump 25, (b) yeast and yeast food, initially dispersed in a stirred tank 14 in water supplied by a meter 15, and transferred to the mixer 22 via a stirred holding tank 17, float tank 20 and pump 21 and (c) flour pneumatically supplied from a weighing hopper 26 via a rotary feeder 29, stirred hopper 30 and metering worm 34, the brew being fed by a pump 35 to a fermentation tank system 36A from which it is transferred by pumps 39, 47 via a stirred vessel 40 to a developing mixer 33 which also receives (a) fat fed by a pump 50 from an electrically heated and thermostatically controlled stirred vessel 48, (b) salt fed by a metering device 52 from a vessel 58 via mixing and feed worms 51, 53 and (c) flour fed from the feeder 29 via an elevator 32, stirred hopper 32A and the worms 51, 53. The hopper 30 is maintained at constant level by a detector therein controlling the feeder 29. As shown, the fermentation system comprises eight stirred tanks 36A filled in succession over respective one-hour periods (fermentation taking seven hours) and emptied in succession. The tanks 36A have water jackets 43 supplied from the tanks 10, 11 via valves 44, 45 having a temperature control 46. The hopper 26 supplies about equal quantities of flour to the mixers 22, 33. A float tank 114 and metering pump 113 supply water to the mixer 33, which is constructed as described in Specification 934,256 and has a cooling jacket 133 with a thermometer 134 and supply system comprising a stirred and heated tank 135, pump 139 and metering device 140. The mixer 33 feeds a divider 56 constructed as described in Specification 934,257. Modifications.-In Fig. 2, a motor 67 and variable-speed gear 68 drive a weigh feeder 59 for flour, metering pumps 63, 64 for water and yeast suspension, and, via a variable-speed gear 62, a feed worm 60 for solid yeast food, all delivered to the mixer 22. 170 is a water meter. The tanks 36A are replaced by a continuous-flow tank 71 having aperture partitions 72, a stirrer 73 and a level detector 73 controlling the gear 68. 74 is a pH meter. A motor 78 and variable-speed gear 79 drive a weigh feeder 75 for flour, metering pumps 47, 50, 77 for brew, fat and water, and, through gearing 178 and a variable-speed gear 179, a salt-feeding worm 177. A motor 80 and variable-speed gear 81 drive the divider 56, the level in which controls the gears 79, 81. In Fig. 3 (not shown) there is no separate water supply to the mixer 22, and the worm 34 is replaced by a weigh feeder. In Fig. 4 (not shown) separate yeast and yeast food suspensions are fed to the mixer 22.
Patent GB-1393098-A (GB)
Title: Speed responsive governor mechanisms
IPC: G05D13/02
Filed: 1971-08-04
Abstract: 1393098 Speed governors JOSEPH LUCAS (INDUSTRIES) Ltd 28 July 1972 [4 Aug 1971] 36626/71 Heading G3B The Specification discloses a speed governor as described in Specification 1393097 but the claims relate to another aspect thereof.
Patent GB-822892-A (GB)
Title: Improvements in looms
Inventor: WALTON JOHN RIDGWAY
IPC: D03D47/00
Filed: 1954-12-17
Abstract: 822,892. Automatic looms. JOHNSON &  JOHNSON. Dec. 16. 1955 [Dec. 17, 1954], No. 36643/54. Class 142(2) Sufficient weft 9 for a few picks is measured by driven nip rollers 11 and drawn into a shuttle 13 through an orifice 16 by suction applied at an orifice 75, a filter 17 preventing escape of the weft into the suction pipe 71. The shuttle traverses the warp the requisite number of times to lay its charge of weft, then returns to the refilling position, the weft being cut by shears 73 to provide a fresh end to be drawn into the shuttle. The mechanism is duplicated, another shuttle, replenished at the other end of the loom, laying weft whilst the shuttle 13 is being refilled. The shuttle is propelled and guided by magnets and rollers as described in Specification 696,457, its movements through the warp and the extra movement to bring it to the refilling position, being derived from a cam.
Patent GB-1121956-A (GB)
Title: A synchronized hydraulic system
IPC: F15B11/22
Filed: 1966-08-16
Abstract: 1,121,956. Hydraulic actuators. DAIKIN KOGYO CO. Ltd. Aug. 16, 1966 [July 27, 1966], No. 36661/66. Heading F1P. Hydraulic actuator pistons 4, 4<SP>1</SP>, Fig. 5, are urged outwardly of cylinders 3, 3<SP>1</SP> at a predetermined speed ratio, e.g. 4 to 1, by fluid forced along lines III, IV from cylinder spaces b, a, by pistons 10, 10<SP>1</SP> connected together by a rod 11 and of area ratio equal to said speed ratio, the pistons 10, 10<SP>1</SP> being themselves displaced by fluid forced by a pump 1 through a selector valve 2 when in position A, a line 1 and inlet ports 12, 12<SP>1</SP> of cylinder spaces a, c. Fluid exhausted from the upper ends of cylinders 3, 3<SP>1</SP> is returned through a line II and valve 2 to a tank T and near the ends of the outward stroke of pistons 4, 4<SP>1</SP> any lack of synchronization is rectified by passage of pump fluid through a port 31 of cylinder space c, a check valve member 27, Fig. 6, when unseated by an arm 23 of rod 11 near the end of its stroke, non-return valves 29, 29<SP>1</SP> and lines III, IV. To return pistons 4, 4<SP>1</SP> valve 2 is moved to position B to admit pump delivery to the outer ends of cylinders 3, 3<SP>1</SP> whilst the inner spaces e, f exhaust through lines III, IV into cylinder spaces b, a thereby displacing pistons 10, 10<SP>1</SP> to the other end position and as they approach this position a rod arm 23 opens a check valve 27 thereby connecting cylinder spaces e, f through non-return valves 30, 30<SP>1</SP>, valve 27, cylinder space C and line I to tank T. In a modification pairs of check valves 14, 14<SP>1</SP>, 15 15<SP>1</SP>, Fig. 2, are located within bores D of connected pistons 10, 10<SP>1</SP> which as shown are of equal diameter corresponding to a speed ratio of unity for the actuator pistons. Near the end of the outward stroke of the actuator pistons and hence of pistons 10, 10<SP>1</SP> valve stems 16, 17 abut cylinder faces 20, 20<SP>1</SP> and pump pressure is admitted through said check valves to cylinder spaces b, d, ports 13, 13<SP>1</SP> and lines III, IV to actuator cylinder spaces e, f to correct errors of synchronization of pistons 4, 4<SP>1</SP>.
Patent GB-1521357-A (GB)
Title: Dental handpiece body
IPC: A61C1/05
Filed: 1976-09-03
Abstract: 1521357 Dental handpieces SIEMENS AG 3 Sept 1976 [25 Sept 1975] 36705/76 Heading A5R A dental handpiece body 2 in which a miniature air or electric motor (not shown) is housed, includes two coolant supply ducts 21 (one for air, one for water), each duct 21 being in communication with a coolant passage 18 for conveying coolant internally of the body 2, to a handpiece head 6, and with a branch duct 23 whereby coolant may alternatively be conveyed via an external coolant line 9, Fig. 1, to head 6 by engagement of a connector 10 with the orifices 14, 15 of the branch ducts 23. If the coolants are conveyed by internal coolant passages 18, 18' plugs 24', Fig. 2, are inserted in orifices 14, 15. The internal coolant passages 18, 18' each communicate with an annular groove 20, 20' in connecting stub 19 which engages with grip member 5. Various other embodiments are disclosed, Figs. 3-10 (not shown) all allowing selection between the interval supply passage and an external coolant line.
Patent GB-994192-A (GB)
Title: Belt conveyor
Inventor: CARPENTER JAMES HALL
IPC: B65G37/00
Filed: 1961-10-13
Abstract: 994,192. Endless conveyers. CARPCO RESEARCH & ENGINEERING Inc. Oct. 13, 1961, No. 36763/61. Heading B8A. Apparatus for conveying fluent material in a path curved both in plan and elevation comprises cooperating belts 1, 2 supported by a frame 3 to receive material from a hopper 4 and deliver it to a receiving hopper 5. Belt 1 has inwardly sloping sidewalls 6, 7 defining with the bottom 11 a trough 9. Belt 2, which is slightly wider than mouth 12 of the trough, is introduced into the trough at a point where belt 1 passes over a pulley 51 the pressure on the bottom 8 spreading the sidewalls 6, 7. The resilience of belt 1 clamps belt 2 into the trough 9 by the camming action of the sidewalls 6, 7 so that the material is pressed between the belts 1, 2. Belt 2 and trough 9 may have trapezoidal cross-sections (Fig. 29, not shown). An alternative embodiment, Figs. 33, 34, shows the auxiliary belt 402 hollow and attached at one side 405 to the main belt 401. The fluent material is introduced by a nozzle 406 the auxiliary belt being distorted by rollers (not shown) at the feeding station. Specification 994,193 is referred to.
Patent GB-1151210-A (GB)
Title: 4-Substituted delta<5>-3-Ketosteroids
IPC: C07J5/00
Filed: 1966-08-22
Abstract: 1,151,210. Steroids. WARNER-LAMBERT PHARMACEUTICAL CO. 22 Aug., 1966 [23 Aug., 1965]; No. 37002/68. Divided out of 1,151,209. Heading C2U. Novel compounds of the general formula wherein R is a hydrogen atom or a methyl radical, R<SP>1</SP> is a hydrogen or fluorine atom or a methyl radical, Y is H 2 , or a keto group,. Z is a hydrogen or halogen atom,. T is H2, (αH,#CH 3 ), (αCH 3 ,#H),(αH,#F), (αF,#H), (αH,#Cl), (αCl,#H) or =CH 2 , the C 17  carbon atom has the following structure wherein X and X<SP>1</SP> which may be the. same or different, are selected from. hydrogen atoms, hydroxyl group and acyloxy radicals containing up to 9 carbon atoms, # is a hydrogen atom or a saturated or unsaturated hydrocarbon radical containing up to 3 carbon atoms, with the proviso that T is H 2  when # is other than a hydrogen atom; are prepared by heating, under the conditions of a Claisen re-arrangement, a 3-propargyl erol ether of #<SP>4</SP>-3-ketosteroid of the general formula wherein R, R<SP>1</SP>, Y, Z, T and C 17  are as defined above. The mixture of a 4-allylidene compound and a 4-allenyl compound can be separated by fractional crystallization or said mixture is chromatographed on alumina, whereby the 4-allenyl compound is converted into the corresponding 4-allylidene compound.
Patent GB-918002-A (GB)
Title: Improvements in or relating to couplings, e.g. for hoses
Inventor: SCIUTO CARL CARMAN
IPC: F16L37/23
Filed: 1961-10-16
Abstract: 918,002. Hose couplings. STILE-CRAFT MANUFACTURERS Inc. Oct. 16, 1961, No. 37006/61. Class 99(1). . A coupling comprises a tubular plug 14, a tubular body 22 providing a socket 26, a sleeve 34 slidably mounted on the body, valve means operatively disposed between the sleeve and the body and latch means carried by the body selectively engageable with the plug, the sleeve being arranged to actuate the valve means to control flow through the body and plug and to actuate the latch means automatically and selectively upon slidable movement. As shown the sleeve 34 is slidable on the body 22 both axially and rotatively. The movement of the sleeve is controlled by a pin 44 moving in a C-shaped slot 41 in the body 22. When the sleeve is in the position shown the coupling can be made by inserting the plug 14 into the socket 26 and as the plug moves inwardly camming shoulder 21 engages the locking balls 30 to move them radially outwards into recesses 35 in the sleeve. When the plug is fully inserted the groove 16 is aligned radially with the balls 30 and the plug end 20 engages the 0-ring 40. The sleeve 34 is then rotated which cams the balls 30 into engagement with the groove 16 to latch the plug 14 in the socket 26. The valve means formed by ports 32, 33 and sleeve 34 remains closed. The sleeve 34 is moved axially from left to right of the Figure to open the valve means by allowing ports 32, 33 to communicate through recess 36, 0-rings 37, 38 providing seals. Rotative movement of the sleeve then locks the latter in position with the valve means open.
Patent GB-1202531-A (GB)
Title: Control of mine roof supports
Inventor: BOWER LEWIS ROBERT
IPC: E21D23/20
Filed: 1966-08-18
Abstract: 1,202,531. Advancing mine roof support assemblies. A. G. WILD & CO. Ltd. 20 Nov., 1967 [18 Aug., 1966], No. 37022/66. Heading E1P. In an advancing mine roof support assembly comprising a series of support blocks A, B, C, each block is connected to a common pilot pressure line 14 by conduits such as 7A, 8A which are connected in parallel to their supports and controlled respectively by manually operable valves such as 15A, 16A. Valve 15A controls the "snaking over" of the conveyor whilst valve 16A controls the advance of the props, a trip valve being provided in the advancing jack of a support to control its setting against the mine roof and a valve being provided to control sequential advance of the supports. In a modification of the above each conduit such as 8A is connected to the associated supports of the block A in the reverse order to that shown, the arrangement being such that fluid is trapped in the "push" sides of all the double acting jacks to prevent the conveyor from being retracted during the advance of the supports, see Fig. 1A (not shown). All or certain supports of each block are each provided with a double-acting advancing jack for pushing over the conveyor but, if desired, only every third support may be so provided as disclosed with reference to Fig. 3 (not shown). All the control valves may be incorporated into motor stations, one of which is disposed at the end of each block. For the manner in which the valves are operated together with details there of Specifications 52545/67 and 48958/67 are referred to. For minor details concerning 'modus operandi' and various connections to pressure and exhaust lines visualized the Specification should be referred to. For details of the circuit associated with a single roof support which may form part of a system for use on a unidirectional or bi-directional, shearer face or a low-pressure ploughing face Figs. 2, 4, 6 and 8, (not shown), should be referred whilst Figs. 5, 7 and 9, (not shown), depicts circuits interconnecting blocks of supports as disclosed above.
Patent GB-1396009-A (GB)
Title: Sound and vibration insulating boards
IPC: F16F7/00
Filed: 1972-08-09
Abstract: 1396009 Laminates LES ISOLANTS FRANCAIS and A GIRUADEAU 9 Aug 1972 [10 Aug 1971] 37141/72 Addition to 1181569 Heading B5N A sound and vibration insulating board comprises a pair of component boards 22 and 23 each having a plurality of annular recesses 24 and 25, the recesses 24 of one component 22 lying opposite the recesses 25 of the other component board 23, a plurality 26 of annular components being engaged on a respective opposed pair of said annular recesses and extending to the base of each respective recess. In the preferred embodiment, the board comprises a skirt 30 integral with an outer one of the annular components, the individual annular components being interconnected by parts 27 of reduced thickness in relation to the thickness of the annular components. The skirt 30 which may be frustoconical may be mounted on a boss 28, internal teeth 31 located on the skirt engaging the boss. The board may be of elastomeric material.