baber/WOPTO huggingface dataset:
Patent GB-1112549-A (GB)
Title: Improved electromechanical oscillator
Inventor: CLIFFORD CECIL FRANK
IPC: H02K33/10
Filed: 1966-04-18
Abstract: 1,112,549. Oscillating motors. HORSTMANN, CLIFFORD, MAGNETICS Ltd. 3 Jan., 1967 [18 April, 1966], No. 16814/66. Heading H2A. [Also in Division G3] An electromechanical oscillator comprises a tuning fork having the tines lying between polepieces in such a way that as the tine vibrates about a neutral position the flux through the tines reverses. A yoke member comprising a flat part 14 with short projections 15, 16 bent down to form polepieces 17, 18 at one end and longer projections 19, 20 bent down to form polepieces 21, 22 is attached to one face of a permanent magnet 11. A similar yoke member is attached to the other face of the magnet but is inverted and turned the other way round so that its upstanding polepieces confront the depending polepieces of the first yoke member. The tines 27, 28 of a tuning fork lie in the gaps between the polepieces such that in the rest position the flux passing along the tine is zero. When the tine 28 moves towards polepieces 17, 24 a magnetic flux will flow inwardly along the tine and when tine 28 moves towards polepieces 21, 25 a flux will flow outwardly along the tine. The flux in the tine therefore reverses and induces a signal in fixed coil 30 inductively coupled to the tine. A similar coil 29 is inductively coupled to the other tine 27 and the coils form the input and output coils of an amplifier in the normal way. In a modification, Fig. 2 (not shown), the polepieces may be shorter so that they co-operate with the top and bottom surfaces of the narrow tines. It is stated that the oscillator is for use in a watch.
Patent GB-1159193-A (GB)
Title: Electric Circuit Breaker Arrangements
Inventor: BASSANI ERMANNO
IPC: H01H9/10
Filed: 1967-04-12
Abstract: 1,159,193. Automatic  circuit-breakers. BASSANI S.p.A. 12 April, 1967 [12 April, 1966], No. 16833/67. Heading H1N. A circuit - breaker arrangement comprises a magnetic-thermal circuitbreaker 2 coupled to a differential " circuit " 3 and connected in series with a fuse mounting arranged to receive only a fuse holder 5 of the desired fuse rating. The circuit - breaker responds to earth leakage currents and to relatively low excess currents. Larger fault currents blow the fuse.
Patent GB-1109213-A (GB)
Title: Constant volume closed loop hydraulic system
Inventor: YOUNG WILLIAM GUY
IPC: F16H39/00
Filed: 1966-04-18
Abstract: 1,109,213. Hydrostatic transmissions. SALEM TOOL CO. 18 April, 1966, No. 16910/66. Heading F2C. [Also in Division F1] In a hydraulic system wherein a variable volume axial piston swash plate motor 28, Fig. 7, having a fixed tilt plate and mounted on a power-driven reciprocable carriage 11, Fig. 1, is connected through a closed loop 30 to a variable volume axial piston reversible swash plate pump 27 having an adjustable tilt plate 87 and mounted on a relatively fixed frame 2, the volume of fluid in each leg of the loop is maintained constant by insertion therein of extension chamber means 31 comprising an outer cylinder 60, Fig. 6, linked to the frame 2, having a fluid connection 59 to the pump at one end, an axial core tube 63 rigidly connected by a plug 61 to said end, a piston 67 between the core tube 63 and the cylinder 60 and having a tubular rod 66 slidable through the other end of the cylinder 60 and having a fluid connection 83 to the motor 28 and being linked to the carriage 11; the piston end of the rod 66 having ports 75 whereby the annular space between it and the cylinder 60 is connected to the interior of the rod 66 and thus to the interior of the core tube 63 and the air space between the plug 61 and the piston 67 being vented to atmosphere through a port 77 in the cylinder 60. The extension chamber in each side of the loop includes two matched chambers linked together one above the other; the pump delivery being connected to the extending end of the slide tube 66 of the lower cylinder 60 and being conveyed from the other end of the lower cylinder to the piston end of the upper cylinder by a conduit 59. The motor 28 drives an auger 20 through a gear-box 12 mounted on the carriage 11 which is reciprocated along rails 10, Fig. 2, by double acting cylinders and pistons 33, 36 supplied from a rotary pump 25 driven by an electric motor 16 through a gear-box 17 which latter is also connected to the variable tilt swash plate pump 27. A further pump 24 supplies makeup fluid to loop 30 through check valves 115, 116 and supplies fluid through a manually operated valve 102 to one or other of a pair of spool valves 93, 94 and pistons 90, 91 which operate a crash arm 89 to tilt pump plate 87. A further pump 26 supplies fluid through various manually operated valves to front and rear roof and floor jacks 7, 6, hoist motors 131, 132 and to motors 126R, 126L for moving the frame along tracks 3.
Patent GB-1213802-A (GB)
Title: Constant current circuit
Inventor: BAKER BERNARD STUART
IPC: H03F5/00
Filed: 1967-04-13
Abstract: 1,213,802. 802. Automatic current control. COURTAULDS Ltd. April 16, 1968 [April 13, 1967], No.17027/67. Heading G3R. [Also in Division H3]  A circuit for feeding a substantially constant current comprises first, second and third resistors, R1, R2, R3 respectively, connected in series, an amplifying device, i.e. transistor VT1 so connected across the first resistor R1 that an increase or fall in the voltage drop across that resistor will cause the amplifying device to feed an increased or decreased current through the second resistor R2, and a further amplifying device, i.e. valve V3 so connected across the second resistor R2 and to the third resistor R3 that an increase or fall in the voltage drop across the second resistor R2 will cause the further amplifying device to feed an increased or decreased current through the third resistor R3. As shown, the transistor and valve obtain a fixed emitter and cathode bias from Zener diodes ZD2, ZD1 respectively, and the arrangement is used as the common cathode impedance of a pair of amplifying valves V1, V2 in "long-tailed pair" connection [See Division H3]. The Specification also describes a modification in which the transistor VT1 is replaced by a pair in Darlington connection Fig.2 (not shown).
Patent GB-570142-A (GB)
Title: Process for the catalytic dehydrogenation of hydrocarbons
IPC: C07C5/32
Filed: 1942-12-01
Abstract: 570,142. Catalytic dehydrogenation. UNIVERSAL OIL PRODUCTS CO. Dec. 1, 1942, No. 17077. Convention date, Nov. 17, 1941. Drawings to Specification. [Class 1 (i)] In a process for the dehydrogenation of hydrocarbons wherein the vapour is passed through a reaction chamber in which a fluidised mass of catalyst is maintained and from which catalyst is continuously withdrawn and regenerated, a sufficient amount of hot regenerated catalyst is added to the reactants to furnish at least a major portion of the heat required for the endothermic reaction. The catalyst in the reaction chamber has a density of at least 240 kgms. per cubic metre, and may comprise a dense phase from which catalyst is withdrawn into a conduit in which a hydrostatic pressure is generated sufficient to effect circulation without mechanicalmeans. Alternatively some or all of the catalyst may be withdrawn overhead in the reaction products. Part of the regenerated catalyst may be cooled and recycled through the regenerator ; the other portion which is added to the reactants may or may not be further heated.
Patent GB-372130-A (GB)
Title: A device for receiving and securing milk delivery bottles
IPC: A47G29/26
Filed: 1931-06-12
Abstract: 372,130. Securing milk-delivery bottles to doors &c. NEARY, J. E. A., 60, Lowden Road, Herne Hill, London. June 12, 1931, No. 17082. [Class 44.] The bottle is slid into a channel member a parallel to the door i past t a spring-pressed flap c and flat springs e. Outward movement of the flap is prevented by stops d, An opening f in the side of the channel member a is closed by a spring g which allows the bottle to be withdrawn when the door is open.
Patent GB-331664-A (GB)
Title: An improvement in or relating to hemstitch sewing machines
IPC: D05B55/02
Filed: 1929-06-04
Abstract: 331,664. Anker-Werke Akt.-Ges., and Lind, G. June 4, 1929. Hem-stitching machines.- The piercer b of a hemstitch sewing-machine is carried by a member a hinged to the needle-bar c. The piercer may be in the form of a thread-drawing knife.
Patent GB-401229-A (GB)
Title: Improvements in cadmium-nickel alloys
IPC: C22C20/00
Filed: 1933-06-15
Abstract: Alloys for bearings consist mainly of cadmium with 0,25-7 per cent of nickel.  Up to 3 per cent of any of the metals aluminium, antimony, copper, and magnesium may also be present.  In making the alloy nickel in the form of pure thin sheets may be added to the molten cadmium while this is covered with a flux such as zinc chloride, the other metals, if any, being added at the same time.
Patent GB-1120281-A (GB)
Title: Calcium acetate lubricant
IPC: C10M169/00
Filed: 1966-04-19
Abstract: A lubricant comprises a lubricating oil and a co-neutralized mixture of lime, 1-7.2 wt.% acetic acid, 0.2-5% of at least one C7-C30 fatty acid, 0.5-5% of a polyisobutenyl succinic acid or anhydride (the molecular weight of the polyisobutenyl group being 700-3000) or P2S5 treated polyisobutylene having a molecular weight of 600-4000 or a mixture thereof, 0.2-5% of a mono- or di-C5-C20 alkyl phenol and 0.2-5% of an alkanolamine having 2 or 3 carbon atoms in each alkanol group.  The oil may be mineral or synthetic, e.g. esters, polycarbonate oils, and silicones.  The composition may also contain sodium nitrite, lanolin, wool grease stearine and phenyl-alpha-naphthylamine.
Patent GB-770193-A (GB)
Title: Improvements in or relating to electrical switching devices
Inventor: WRIGHT THOMAS OLIVER
IPC: H01H50/62
Filed: 1954-06-11
Abstract: 770,193. Make and break switches, mechanical, BRITISH TABULATING MACHINE CO., Ltd. June 11, 1954, No. 17217/54. Class 38(5) Contact blades 10 of a switching device A are operated periodically through a rod 9 and arm 8c of a lever 8 pivoted at 7. the lever arm 8a being biased against a controlling cam 4a by a spring 22. The coil 11 of a latching relay having an armature 12 is energized each time the arm 8a is opposite a high portion of the cam so that the free end of the armature moves from a blocking position opposite a shallow notch 23 in the arm 8c to a position opposite a deeper notch 24 thereby permitting tilting of the lever 8 when the arm 8a comes opposite a notch in the cam 4a. The coil 11 is energized through a cam operated switch (not shown) driven in synchronism with the shaft 4. To ensure return of the armature by the spring 16 the arm 8c engages a stop 21 on a lever 19 pivoted at 20, the lever 19 moving the armature when the arm 8a moves  on to a high portion of the cam. The switching device A together with a similar device B are mounted on a plate 1 and controlled by the same cam 4a. A number of plates 1 may be mounted together on a, bar received in notches 2, the upper edges 3 of the plates being held in clips, the shaft 4 carrying a cam for each plate. The switching device is suitable for use in the punched card reproducing machine described in Specification 442,534 [Group VIII] .
Patent GB-873006-A (GB)
Title: Rotary valve for controlling fluid flow
IPC: F16K11/074
Filed: 1959-05-21
Abstract: 873,006. Valves. BARKSDALE, L. S. May 21, 1959 [Feb. 24, 1959], No. 17286/59. Class 135. A multiple-way rotary disc valve for controlling the flow of pressure fluid to and from a piece of operated apparatus comprises a twopart casing 12, 14, Fig. 3, having equally-spaced ports 44, 48, 46A, 46B, Fig. 6, opening into a plane face 20 of the part 14 spaced from and parallel to a plane face 18 of the part 12 to form a valve chamber 16 in which is housed a plane-faced disc 26 rotatably mounted on a shaft 32 to control fluid flow between the ports. The disc is formed with a pair of passages 58 opening at their ends into ports 56 on the face of the disc adjacent the casing face 20 and is spaced with slight clearance from the face 20 and with greater clearance from the face 18. The ports 44, 46A, 46B are fitted with bushes 66 spring-urged into contact with the disc 26 in opposition to a thrust bearing 78 mounted between wear-plates 22, 72 in the clearance between the disc and the face 18. Bolts 120, Fig. 1, having reduced diameter portions secure the parts 12, 14 together and in the event of excessive pressure in the casing the bolts stretch and/or fracture whence an " O " seal ring 114 is blown out of a groove 104 in which it is located. Detent means together with stop means are located within the casing. The detent means comprises a spring-loaded ball 92 engageable in holes 94 in the wear-plate 72 to locate the disc 26 in any one of three operating positions. The stop means comprises a pin 82 carried in the casing part 12 and engageable in a slot 84 in the wear-plate 72 and an arcuate groove 86 in the disc 26. The thrust bearing 78 is encircled by lubricant sealing means 100 and encircles the detent and stop means to pre-lubricate these parts.
Patent GB-718467-A (GB)
Title: Improvements in or relating to purification of low boiling tar acids
Inventor: NEUWORTH MARTIN BRANDT
IPC: C07C37/82
Filed: 1952-07-10
Abstract: Low-boiling tar acids, i.e. boiling below 230 DEG  C., and lower aliphatic carboxylic acids i.e. having a maximum of six carbon atoms, are separated by passing a solution of the tar acids and carboxylic acids in an organic solvent in contact with an anion exchange resin and recovering tar acids substantially free from carboxylic acids from the effluent.  The exchange resin initially adsorbs tar acids which are subsequently displaced by the carboxylic acids; the reaction is therefore carried on until more of the tar acids have been added than is necessary to saturate the resin with acids but not longer than is required for the resin to become saturated with carboxylic acids.  Suitable solvents are organic polar solvents such as methanol, ethanol, acetone and methyl ethyl ketone, particularly aqueous methanol.  The anion exchange resin is preferably one that obtains its activity from quaternary ammonium groups.  Basic substances such as tar bases or bases derived from the anion exchange material may be removed from the effluent solution by subsequent passage through a cation exchange resin which preferably derives its exchange capacity from sulphonic acid groups.  The anion exchange resin may be regenerated by treatment with a strong acid followed by a strong base, or by treatment with an aqueous solution of a base (e.g. sodium hydroxide) alone.  The cation exchange resin may be regenerated by an aqueous methanol solution of a strong acid.  The process relates particularly to the removal of butyric acid occurring in amounts of less than 5 per cent in low boiling tar acids. Examples describe the use of an anion exchange resin in (1) the separation of aliphatic acids, acetic, propionic, butyric and valeric, from a mixture of tar acids containing phenol, cresols, xylenols and ethyl phenols; and (2) the separation of o-cresol and butyric acid.
Patent GB-232465-A (GB)
Title: Improvements in plants for transmitting heat from one fluid to another
IPC: F22D1/38
Filed: 1924-07-21
Abstract: 232,465. Haddan, R., (Aktiebolaget Ljungstr÷ms Angturbin). July 21, 1924. Regenerators.-Apparatus for effecting the transfer of heat from one gas to another gas or to a liquid, such as the heat from the waste gases of a boiler furnace to the air for combustion in the furnace or to water, comprises in the example shown in the Figure a stationary heater 7 arranged in the smoke-box 6 of a boiler and exposed to the gases of high temperature and a rotary heater 10 throuh which the gases pass subsequently at a lower temperature. Air for combustion passes first through the rotary heater and thence through the stationary heater to the furnace. Fans 11, 12 serve to force the air and gases through the apparatus. If desired separate currents of air may be passed through the heaters. The stationary heater may be of fireproof material, while the rotary heater may be of metal. The heater 7 may be employed to heat water.
Patent GB-177742-A (GB)
Title: Improvements relating to apparatus for selecting and separating lease warp threads in the preparation of the warp for looms for weaving
IPC: D03J1/14
Filed: 1921-06-28
Abstract: 177,742. Entwistle, E., Sharples, P., and Townley, A. June 28, 1921. Healds &c., threading.-In apparatus for selecting and separating leased warp threads in the preparation of the warp for weaving, for example to prepare the warps for a subsequent drawing-in operation, leased warp threads (or groups thereof according to their disposition in the lease) are engaged in succession at opposite sides of the lease by pins C, C<1>, Figs. 2 and 4, on a plate c on a shaft c<1> carried by a frame c<2> pivoted to a carriage B, which is traversed across the warp threads. The shaft c<1> is oscillated by lever mechanism from a crank-pin c<7>, and the frame c<2> is normally maintained in a forward position against a stop c<10> by an adjustable spring c<11>. As the carriage B travel towards the warp. threads, the pins C, C<1> press against these threads, the frame c<2> is turned on its pivot, and the pins C, C<1> deflect the warp threads, which are released one at a time and separated from the remaining threads, as shown in Fig. 8, as the shaft c<1> oscillates. The separated thread is taken by a holder D into a position where it can be taken by a carrier E and transferred to a guide F for drawing-in purposes. The holder D comprises a spring tongue furnished with two pins d and attached to a shaft d', which is reciprocated endways in guides in the frame c<2>. The carrier E may take the place of the selector needle described in Specification 7780/15, and the pressure of the pins C, C' may be arranged to control the traverse of the carriage. A modification is described, wherein two sets of separating-pins are used, one set being fixed on a plate attached to a sleeve, which surrounds the shaft c<1> and is oscillated by lever-and-crank mechanism.
Patent GB-1523692-A (GB)
Title: Electro-optical display apparatus
IPC: G09G3/16
Filed: 1976-04-29
Abstract: 1523692 Controlling light DAINI SEIKOSHA KK 29 April 1976 [1 May 1975] 17547/76 Headings G2F and G3T [Also in Division G5] In a temperature sensitive display apparatus, e.g. in a liquid crystal 7-segment numerical display as in a watch, the working range of pulsed supply voltage between threshold and the on set of crosstalk (I and II) Fig. 1 (not shown) shifts with temperature, but may be compensated by variation of the duty cycle by a temperature sensitive circuit. In a watch display, segment electrodes a-g for each numeral oppose single counter-electrodes X 1-4. A 1Hz supply is derived from quartz oscillator I by diciding circuit 2, including four divide-bytwo stages providing outputs M, N- -N+3. Counters 3-8 count 10 and 60 seconds, second and first digits of minutes and of hours; the minutes and hours digits are shown as displayed, while the seconds may be added if required. Gate control 24 derives from N+2 and N+3 divider 2 outputs Fig. 3 (not shown) four phase pulses at N+3 frequency, Fig. 4 (not shown) allowing the counter outputs to be passed by gate circuits 9-12 to de-coder 13: the de-coded segment signals pass via amplifiers 14 for each segment to one main electrode of P channel gates 16 and N channel gates 17 and via inverter 18 to the other main electrode. The same four phase pulses similarly gate the uncoded supply via amplifiers 23A-D to gates 20, 21 of counter-electrodes X 1-4. A temperature sensitive oscillator 37 causes the pulse trains of p.d. across the segments to vary in duty cycle in steps “, ¢, ¥, 1, Fig. 8 (not shown) according to temperature, compensating for the characteristic of the liquid crystal. The duty cycle is re-adjusted every 10 minutes or other intervals.
Patent GB-110443-A (GB)
Title: Improved Furnace for Annealing, Case Hardening, Fusing and similar Processes.
Inventor: GROCOTT FREDERICK JOHN
IPC: C21D9/00
Filed: 1916-12-07
Abstract: 110,443. Grocott, F. J. Dec. 7, 1916. Muffle furnaces.-A gas-fired furnace for annealing, case-hardening, &c. is so constructed and arranged that by the opening and closing of certain passages, as for instance by dampers, the furnace may operate for the treatment of metals with an oxidizing flame, a non-oxidizing flame, or as a box muffle. Fig. 5 shows a section through such a furnace, f being the muffle. Gas is supplied at c from a producer combined with the furnace, and air for combustion is supplied through the channels g<3> and c<3> to mix with the gas which issues at d. By regulating the supply of air, an oxidizing or a reducing flame may be obtained in the combustion chamber e. The flame may be admitted to the muffle through openings as shown at the end and along the sides, and withdrawn through openings (not shown) at the top fitted with dampers, or it may circulate round the muffle and escape through dampered openings s at the top. Specifications 13614/05, 18346/14, and 14668/15 are referred to.
Patent GB-601263-A (GB)
Title: Feed mechanism for machines for making sliding fasteners
IPC: A44B19/46
Filed: 1945-07-11
Abstract: 601,263. Sliding-clasp fasteners. SOC. ANON. SPEED. July 11, 1945, No. 17660. Convention date, Feb. 22. [Class 44] In the feed mechanism of a machine for making sliding-clasp fasteners in which the elements are delivered one by one to the tape by alternating movements of a needle and a finger entering a feed passage, the needle is advanced into the passage, and preferably also withdrawn therefrom by the release movement of a spring or springs which has or have been stressed during an earlier part of the cycle of operations. The elements 2 slide down a feed passage 1, and are held alternately by a needle 3 and by a finger (not shown) which enters the passage when the needle is withdrawn. The needle 3 is attached to an oscillating holder 4, pivoted at 41, at the lower end of which is a spring-loaded plunger 5 which acts to thrust the needle forward. At the necessary intervals, the plunger 5 is positively retracted by means of a rocker 7 actuated by a push-rod 8, and a spring 10, acting on the upper arm of the holder 4, then moves the latter to withdraw the needle 3. To interrupt the feed when necessary, a stop 12 is moved into contact with the vertical arm of the holder 4 by partial rotation of a shaft 13 carrying a pin 11.
Patent GB-1122474-A (GB)
Title: Improvements in and relating to dispensing closures for containers
IPC: B65D47/30
Filed: 1967-04-18
Abstract: 1,122,474. Container closures. H. S. HODDING (POLYTOP CORP.). 18 April, 1967, No. 17673/67. Heading B8T. A dispensing closure 12 for a container has a lip 40 of initially triangular cross-section around a discharge hole 38 and sealing against a cylindrical surface 28 of a spout 14 which can be pivoted on trunnions (30), Fig. 1 (not shown), from the closed position illustrated into an open position, with its central bore 34 aligned with the hole 38. The lip 40 has specified angular and spatial dimensions. The closure 12, &c. is made of plastics such as linear, &c. polyethylene, or isotatic, &c. polypropylene. In a modification, a lip (76), Figs. 5, 6 (not shown), of initially triangular cross-section, surrounds a discharge hole (74) through a fitment (70) in an internally screw-threaded closure (52), the lip sealing against a cylindrical surface (62) of a pivotal spout (60).