baber/WOPTO huggingface dataset:
Patent GB-653945-A (GB)
Title: Apparatus for cleaning fiber treating machines
IPC: D01G15/76
Filed: 1948-11-09
Abstract: 653,945. Carding engines. WIED, C. A. Nov. 9, 1948, No. 29077. [Class 120(i)] [Also in Group XXVIII] The doffer roll 12, Fig. 1, and garnett cylinder 11 of a conventional garnett machine are cleaned by a reciprocating head 15 comprising a brush 61, Fig. 9, the bristles 67 of which surround a compressed air nozzle 63 and a laterally displaced suction nozzle 65 for removing freed material. The head 15 is mounted in an opening 115, Fig. 3, of a carriage 20 which is reciprocated along the length of the machine by known double-threaded worm gearing, and is itself mounted on a frame comprising parallel rods 17, 18 and end plates 19 pivoted on pins 28 supported by members 22 which are vertically adjustable in slotted members 21 bolted to the worker roll supporting rings 23. In a modification a contact roller mounted between lateral flanges of the suction nozzle on the opposite side to the brush maintains the nozzle at the correct working distance.
Patent GB-690195-A (GB)
Title: Improvements in and relating to control circuits for electric converting systems
IPC: H02M7/04
Filed: 1950-11-28
Abstract: 690,195. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 28, 1950 [Dec. 7, 1949], No. 29087/50. Class 38 (ii). An electric converting system interposed between an A.C. and a D.C. circuit or vice versa, includes means. such as saturable reactors arranged to control the rate of change of current through the circuit interrupting devices at the end of a conducting period and during the commutating period and includes further means. viz. resistors having non-linear volt-ampere characteristics, for controlling the inverse voltages appearing across the circuit interrupting devices following commutation, thereby to reduce the possibilities of " arc-back." Electron discharge tubes 5-10 are disposed between an A.C. circuit 1 and a D.C. circuit 2, each tube being supplied from a transformer 3 over a main winding of a respective saturable reactor 16, 17 or 18. The discharge vessels 5-10 are caused to operate in the normal fashion by grid control via a phase-shift device 11, transformer 13, and a battery 15 giving the requisite negative bias. The reactors 16, 17, 18 are pre-saturated by means of windings 28, 29, 30 so that the reactors operate to cause the current flowing in an electron discharge device to decay at a relatively slow rate as described in Specification 501,735. Each main winding of the reactors 16, 17, 18 has connected in parallel therewith a resistor 34, having a non-linear volt-ampere characteristic, of the type disclosed in Specification 292,110, [Claas 38 (ii)]. Therefore when the reversal of flux occurs in the core of a saturable reactor the voltage induced in the main winding thereof causes a current to be circulated in the winding and its associated resistor thus delaying the reversal of the flux and allowing such change to continue after current has ceased to flow in the discharge device. This induced voltage is of opposite sense to the inverse voltage appearing across the discharge device following a conductive period thereof, thus causing a reduction of this inverse voltage so preventing " arcback ". In another embodiment there is described a system having mechanical circuit interruption and having resistors 34 similarly associated therewith.
Patent GB-480428-A (GB)
Title: Improvements in centrifugal separators
IPC: B04B7/04
Filed: 1937-10-25
Abstract: 480,428. Centrifugal separators. AKTIEBOLAGET SEPARATOR. Oct. 25, 1937, No. 29094. Convention date, Oct. 28, 1936. [Class 23] The overflow and drain liquids of a centrifugal separator are discharged together through a common outlet. The overflow from the feed tube 2 of the bowl 1 enters the collecting chamber 3 in the tiltable cover 4 and passes through the channels 5, 6 to the outlet channel 7 from the chamber 9 in the bowl housing. This chamber 9 receives the liquid drained from the bowl through the openings 8. The inner end of the channel 7 is sufficiently close to the axis to prevent undesirable air currents.
Patent GB-1106654-A (GB)
Title: Improvements in or relating to monostable switching circuits
IPC: H03K3/30
Filed: 1965-07-09
Abstract: 1,106,654. Transistor switching circuits. ROBERT BOSCH G.m.b.H. 9 July, 1965 [10 July, 1964], No. 29113/65. Heading H3T. [Also in Divisions F1 and G1] In a monostable switching circuit both inductive and capacitive feedback circuits are used to control the duration of the unstable period. A positive input at 11 turns transistor 15 off and causes transistor 19 to conduct. The rising collector current through 19 induces a voltage pulse in primary winding 20 to control 15. As transistor 19 begins to conduct, diodes 26, 27 turn off because the voltage at junction 29 of potential divider 23, 24 becomes more positive. The voltage induced in winding 20 decays (Fig. 2, not shown), until the voltage across diode 26 causes it to conduct and allow capacitor 25 to discharge so as to maintain transistor 19 conducting for a longer period and so lengthen the unstable state of the circuit. When the resultant voltage from the winding 20 and capacitor 25 has fallen sufficiently the circuit reverts to its stable state, transistor 15 on and transistor 19 off. The time constant of the capacitive circuit 32 may be varied, e.g. by variable resistor 23 and the width of the pulses produced by the monostable circuits can be further varied by adjusting the inductive coupling. A further capacitive feed-back circuit (Fig. 3, not shown) may be connected in place of or in parallel with circuit 32 so as to correct overheating in electromagnetically controlled inlet manifold petrol injection by including a temperature sensitive resistor (43) in a position corresponding to resistor 23. In a still further circuit (Fig. 4, not shown), which may be connected in place of or in parallel with the other feedback circuits, the time delay which may occur in the operation of electromagnetically operated injection valves as the.supply voltage varies may be compensated by including a Zener diode (40) in the feedback circuit.
Patent GB-1075786-A (GB)
Title: Container construction
Inventor: MOORE GEORGE ARLINGTON
IPC: B31B50/46
Filed: 1964-07-17
Abstract: 1,075,786. Lined cartons. WEYERHAEUSERCO. July 17, 1964, No. 29343/64. Heading B8P. The ends (11), (12) and sides (13), (14), (Fig. 1) of a container with lid formed from a single blank of cardboard or other material coated with a thermoplastic material are joined by gussets whose fold lines (33) for the pleats emanate from the corners (16), (17), (27), (28), the flanges of the gussets which provide the outer pleat sections (31) overlapping the flanges which provide the inner pleat sections (32) and being adhesively bonded together and adhesively secured to the wing panels. The blank may be formed of a sheet having thermoplastic properties.
Patent GB-1481375-A (GB)
Title: Tubes for the production of carrier bags with lateral accordion folds
IPC: B31B1/74
Filed: 1975-07-14
Abstract: 1481375 Carrier bag tube BAG SYSTEM AB 14 July 1975 [15 July 1974] 29401/75 Heading B8K A flattened tube of weldable sheet material for the production of carrier bags has at each edge a gusseted region comprising four layers of material 2a, 2b, 2c, 2d substantially equal in thickness, and between the gussets a central region made up of two layers of material; each layer having alternating ribs 4 and bands 5 parallel to the length of the tube, each rib 4 being of lesser width and greater thickness than each band 5 and the total thickness of a rib and a band corresponding approximately to the total thickness of the four material layers of the gussets. As described the ribs have a thickness of 100 Ám. the bands 50 Ám. and the material layers of the gussets 40 Ám. The construction is such that on rolling the tube an even roll is formed. The widths of the bands 5 may be varied.
Patent GB-324363-A (GB)
Title: Improvements in the manufacture and production of metallic deposits from metal carbonyls
IPC: C03C17/09
Filed: 1928-10-12
Abstract: 324,363. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 12, 1928. Diaphragms.-Deposits of base metals are produced by thermal decomposition of their carbonyls under reduced pressure, the articles to be coated being heated in a closed vessel to the decomposition temperature while the other parts with which the carbonyl vapour comes into contact are kept below this temperature, if necessary by special cooling means. The article may be brushed before coating with a solution of hydroxide or salt of an alkali or alkali earth metal or of the sulphate of the metal to be deposited. For the production of metallic films the deposit may be made on a crystal surface or other soluble substratum which is then removed, the metal film being caught on ring-shaped supports coated with adhesive. Iron is deposited from iron carbonyl at a temperature of from 150‹ to 170‹ C., under a pressure of between 30 and 50 millimetres of mercury, and nickel from nickel carbonyl at 150‹ C. under a pressure of between 150 and 200 millimetres of mercury. The process may be used for coating ligh metal diaphragms with iron for microphones. Specification 21025/90, [Class 82, Metals and alloys], is referred to.
Patent GB-835394-A (GB)
Title: A process of catalytically hydrogenating benzene
IPC: C07C5/10
Filed: 1958-09-15
Abstract: Cyclohexane is produced by catalytic hydrogenation of benzene in the presence of cyclohexanol with concomittant purification of the cyclohexanol.  Liquid or vapour phase working may be used with a fixed or mobile nickel catalyst which may be foraminate, or in powder form, e.g. as Raney nickel, or supported on diatomaceous earth or silica gel.  Temperatures of 150-250 DEG  C. are used at up to 100 atmospheres using 0.1-1 mol. of cyclohexanol per mol. of benzene. The amount of catalyst may be 0.1-10% by weight of the benzene.  The cyclohexanol may be obtained by the air oxidation of cyclohexane and separation from cyclohexanone and after purification and separation from cyclohexane may be further oxidized to cyclohexanone.
Patent GB-270170-A (GB)
Title: Improvements in or relating to lifting apparatus for gill bars or fallers in preparatory machines for the spinning of flax, jute and hemp
IPC: D01H5/04
Filed: 1926-11-23
Abstract: 270,170. Werschinin, G. Nov. 23, 1926. Gill boxes and frames.-In an arrangement of the kind described in Specification 12962/13 for raising the fallers from the lower guide to the upper guide, the axially displaceable fingers 11, 21 on the disc 4, which rotates at half the speed of revolution of the screws, are so arranged that the the diameter of their circular path is equal to that of the usual cam carried by the lower screw.
Patent GB-897302-A (GB)
Title: Improvements in or relating to function generators and resolvers
Inventor: MOODY NORMAN FRANK
IPC: H03M1/00
Filed: 1958-09-16
Abstract: 897,302. Electric selective signalling systems. CANADA, MINISTER OF NATIONAL DEFENCE. Sept. 16, 1958, No. 29648/58. Class 40 (1). A device for producing a number of pulses proportional to a desired function of an angular displacement comprises a photo-electrically sensed disc, Fig. 2, having marks spaced in accordance with the derivative of the desired function. As described, the desired function is sin # and the marks on track 22, Fig. 2, are spaced in accordance with cos #. To generate sin # a pick-up cell is arranged on the zero line to sense track 22 and the disc is then turned through the angle #. The number of marks sensed by the cell is then proportional to sin # and a second cell positioned over a track 23 indicates whether the marks are to be counted positively or negatively. In the preferred  embodiment a fixed cell and also an angularlydisplaceable cell are provided and it is arranged that the disc be given a complete revolution but that counting of the marks sensed on track 23 occurs only for the period between the sensing of the zero mark by the fixed cell and its sensing by the angularly-displaced cell. Thus for each revolution of the disc sin # is entered once into a counter so that by rotating the disc A times it is possible . to form the product A sin #. Cos # can also be generated by a sensing cell over track 22 displaced from the sin # cell by 90 degrees. An outer track on the disc contains evenly-spaced marks, which, by being counted, give the actual angle turned through by the disc.
Patent GB-802273-A (GB)
Title: Convector apparatus for promoting water circulation in steam boilers
IPC: F22D7/00
Filed: 1955-10-18
Abstract: 802,273. Injectors. CARRASCO, J. A. Oct. 18, 1955 [Oct. 20, 1954], No. 29669/55. Class 71. [Also in Group XIII] A device for promoting water circulation in boilers consists of an injector having a cylindrical casing C with an axially-disposed tapered inlet 1 extending therewithin as a parallel-sided throat terminating in a tapered nozzle B, the inlet 1 being connected to receive the feed water from the boiler feed pump. At each side of the inlet 1 the casing is provided with inlet pipes 2, 3 and at the end opposite the inlet 1 the casing is tapered to form an outlet pipe 4, the pipes 2, 3 and 4 being connected to the water space of the boiler at appropriate locations. Surrounding the nozzle B are further nozzles B<SP>1</SP>, B<SP>2</SP> of increasing orifice size, the third nozzle B<SP>2</SP> being disposed within the tapered outlet end of the casing which thus forms a fourth nozzle E. In operation, the feed water jet from nozzle B passes through the nozzles B<SP>1</SP>, B<SP>2</SP>, E and entrains boiler water from the space surrounding the inlet throat as indicated by the arrows. Water is thereby drawn from and returned to the boiler via the inlets 2, 3 and the outlet 4, the points at which the ducts from the inlets and outlet are connected to the water space being located so that the convection circulation therein is increased by the external circulation caused by the device.
Patent GB-820684-A (GB)
Title: Acid pickling of metals and compositions therefor
IPC: C23G1/08
Filed: 1957-09-20
Abstract: A pickling bath comprises an aqueous mineral acid solution, colloidal sulphur or a compound capable of liberating colloidal sulphur in the bath, and a water-soluble ionizable ferrocyanide. The mineral acid is hydrochloric or sulphuric, the sulphur-liberating compound may be sodium thiosulphate or sodium polysulphide, and the ferrocyanide may be the sodium, potassium or ammonium salt.  The bath may also incorporate dextrose, which acts as a reducing agent, and a cationic wetting agent such as an oxyalkylated fatty amine or aldonic acid salt thereof. Specification 717,572 is referred to.
Patent GB-320629-A (GB)
Title: Improvements in collapsible cores for use in moulding concrete and like materials
IPC: E04G15/06
Filed: 1928-04-12
Abstract: 320,629. Kuert, I. J. April 12, 1928. Divided on 317,337, [Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.]. Cores.-Collapsable cores for forming holes in concrete and like materials consist of four angular metal walls 132, angle bars 140, 150, and a central operating bar 155 actuated by a handle 165 and provided with wedges 156 which engage wedges 152 on the bars 150 to vary the width of the core, and inclined slots 160 which engage crossbars 141 to vary the thickness of the core. Flat or other springs 142 tend to collapse the core. Auxiliary bars 176, slotted similarly to the bar 155, also engage, the bars 141 and are connected by a crossbar 175 to the bar 155. The width of the core may be increased by flat plates placed between the overlapping edges of the walls 132. Fig. 9 shows a modified central bar consisting of two members 190 connected by crossed links 191. Several cores may be joined end to end by chains 182 attached to the bars 155, 176 so that the cores' are collapsed in succession.
Patent GB-533670-A (GB)
Title: Improvements in or relating to electrical synchronising arrangements for controlling the coupling together of rotatable members
IPC: F16D48/06
Filed: 1939-11-10
Abstract: 533,670. Clutch actuation ; electric-motor control systems. GENERAL ELECTRIC CO., Ltd., CROFT. E. H., and RANDALL, H. Nov. 10, 1939, No. 29817. [Class 80 (ii)] [Also in Group XXXVII] An electrical synchronizing arrangement for preventing the coupling together of two rotatable members unless they are in synchronism includes an electro-responsive device controlled in dependence upon the relation between the speeds of the members. As shown in a two speed change gearing the transmission gearing of an electric trolley bus a clutch member 35 splined to the driven axle 25 has clutch facings 37, 38 engageable with facing 33, 34 on extensions 31, 32 of gears 27, 30. Gear 27 is fixed to the driving shaft 24 and gear 30 is loose on the shaft 25. A layshaft 26 carries gears 28, 29 engaging the gears 27, 30 respectively. The member 35 has electrical contact fingers 47, 48 which co-operate with segments 41; 42 on the extensions 31, 32, the segments 41, 42 in each set being interconnected by rings 43, 44. engaged by brushes 45, 46. Latches 51, 52 engage ribs 55, 56 on the member 35 and normally prevent the latter from moving out of the neutral position shown in Fig. 2. The latches 51, 52 are controlled by solenoids 57, 58, Fig. 1, energization of the solenoids causing the latches to free the member 35 for movement in one or the other direction. If the members 31, 35 or 32, 35 are not in synchronism the contact between the fingers 47, 48 and segments 41, 42 is not of sufficient duration to permit of the energization of the solenoids 57, 58. As synchronization is reached the length of the contact period becomes sufficiently long to actuate the solenoids 57, 58. The member 35 may be moved by a spring-urged fork 39, Fig. 3, under control of a gear lever (not shown). In an automatic arrangement the fork 39, Fig. 4, is moved by a sliding rod 63 under the action of solenoids 65, 66 which are energized upon actuation of a gear selector switch. The rod 63 has a projection 72 which when the gear is in neutral is held between a pair of pivoted dogs 70; 71 carried by a vertically slidable plunger 67 controlled by a solenoid 69. The latter is energized upon synchronization to release the projection 72. The wiring diagram for the driving motor is shown in Fig. 1. The compound wound motor 1, 2, 3 is controlled by driving controller 4 and rheostatic braking controller 5. When the gear is in neutral interlocks 59, 62 are open and the interlock 60 is closed, the motor can then be speeded up by moving the controller 4 to position I so closing contacts 21, 22 or it can be slowed down by moving the controller 5 to position I thus closing contactors 19, 23. With the bus stationary, the motor can be spun by closing press button 73. The Provisional Specification describes the use of dog clutches instead of friction clutches.
Patent GB-930723-A (GB)
Title: Automatic tyre carcass loading apparatus
IPC: B29D30/06
Filed: 1960-08-30
Abstract: 930,723. Tyre-moulding Dresses. UNITED STATES RUBBER CO. Aug. 30, 1960 [Sept. 8, 1959], No. 29823/60. Class 87(2). [Also in Group XXX] Tyre carcasses 16 are loaded into cradles 12 which are run along an I-beam 13, and when a cradle is in alignment with its corresponding mould, a trip member 46, Fig. 2, on retaining bars 32 actuates a switch 47a, which in turn causes a cylinder 37 to lower a plate 33, opening the cradle, Fig. 5, and allowing the carcass to fall into a shuttle car 17a. During its fall the carcass is guided by rods 38. When a pair of shuttle cars contain carcasses, they are moved by a cylinder 25, Fig. 2, to position the carcasses around chucks 40a which are then expanded to grip the carcasses. When a tyre press is opened, a switch is actuated to cause a cylinder 43 to turn a shaft 45 through 90 degress to bring the carcass into alignment with the diaphragm of the press. A switch is then actuated to collapse the chuck and allow the tyre to fall into the press. The trip members 46 are placed at various heights on the cradles so that each cradle delivers a carcass only to a desired mould. Specification 799,761 is referred to.
Patent GB-486760-A (GB)
Title: Improvements in or relating to the production of organic phosphorous compounds
IPC: C07F9/12
Filed: 1936-11-03
Abstract: Phosphates of cyclic hydroxy compounds are prepared by treating the hydroxy compound with phosphorus pentachloride and water in a single operation.  Cyclic hydroxy compounds mentioned are phenol, cresols, xylenols, resorcinol, a - and b -naphthols, cyclohexanol and methyl-cyclohexanol, and crude mixtures such as cresylic acid, and the products may be derived from the same or different hydroxy compounds.  Preferably the water, additional to any that may be present in the starting material, is added in the vapour form in admixture with an inert gas such as air or carbon dioxide, and is introduced simultaneously with the phosphorus pentachloride into a reaction vessel containing the hydroxy compound.  Thus, phosphorus pentachloride is fed at a measured rate into a reaction p  vessel made of or lined with a corrosion-resisting material, whilst at the same time warm moist air from a humidifier is blown at a regulated rate into the bottom of the vessel charged with the hydroxy compound. To maintain the reaction temperature, which is preferably 75-80 DEG C., the reaction vessel is provided both with a jacket arranged for circulation of steam or water and with a reflux condenser, and a scrubber is used to remove hydrochloric acid from the gases issuing from the condenser.  An example is given describing the preparation tricresyl phosphate.  The products may be of purified by treatment with an aqueous solution of an alkali metal sulphide which may also contain alkali; the supernatant aqueous layer is decanted off and the phosphate remaining is then filtered.  In addition, the products may be treated, preferably after the sulphide treatment, with nascent hydrogen, e.g. prepared from zinc and mineral acid or generated by electrolysis.  The resulting phosphates are useful as plasticizers particularly for cellulose derivatives, as solvents for cellulose esters and resins, as absorbents in solvent recovery and air-conditioning, as fire- and water-proofing agents, as vehicles for grinding pigments, as transformer oil, as lubricants particularly in oxygen-compressors, as joint compounds for electric cables, and as softeners for rubber, chlorinated rubber and resins.  The Specification as open to inspection under Sect. 91 also describes the preparation of the analogous thiophosphates by using hydrogen sulphide in place of water.  This subject-matter does not appear in the Specification as accepted.
Patent GB-299234-A (GB)
Abstract: 299,234. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Jan. 2, 1928. Grant of Patent refused. Acetaldehyde.-The manufacture of acetaldehyde by bringing acetylene, or gas mixtures containing acetylene, into contact with solutions containing a mercury salt is effected in apparatus constructed of, or lined internally with, a chromium-nickel steel containing molybdenum. A suitable steel contains 19-20 per cent chromium, 7-8 per cent nickel, and 2-3 per cent molybdenum. In an example, a pressure tube of chromium-nickel steel containing molybdenum is used in a process in which mixture of acetylene, methane, and hydrogen is brought into contact under 10 atm. pressure with a sulphuric-acid solution of a mercury compound at a temperature of 90-100‹ C., the acetaldehyde being removed from the gas mixture by means of active charcoal. Specification 278,324 is referred to.