baber/WOPTO huggingface dataset:
Patent GB-540035-A (GB)
Title: Improvements in electric motor control systems
IPC: H02P5/46
Filed: 1940-09-23
Abstract: 540,035. Automatic control systems for electric motors. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 23, 1940, No. 14472. Convention date, Sept. 23, 1939. [Class 38 (iv)] Speed.-A direct current motor is controlled in accordance with a reference speed by means of a reactor variably saturated according to the difference between the voltages and pilot generators responsive to the speeds compared. The reactor forms part of a phase shifting circuit determining the grid potential of values interposed between an A.C. supply and current supply means for the controlled motor. As shown a generator 37 has a field winding 40 in series with valves 41, 42 controlled by the reactor 27 and furnishes current to a controlled motor 17, which may drive the conveyer of a veneer stripping machine and a cutter severing the veneer into lengths. A pilot generator 21 is driven by the motor 17 and a second pilot generator 20 is driven at the reference speed, as by a friction drive from the log adjacent to the splitting knife. Resistances 63, 64 render the normal potential from the pilot generator 21 less than that of the generator 20 so that current through a rectifier 24 may saturate the reactor 27. When the speed of the generator 20 falls due, for example, to decrease in log diameter, the saturation current is reduced, the phase of the potential on the grids of the valves is retarded, and the excitation of generator 37 and the speed of the motor 17 drops until the reduced voltage of the generator 21 restores the saturating current. To prevent hunting a condenser 52 is charged to the potential of the generator 37 and the changes in this potential oppose changes in the saturating current of the reactor. The system shown includes an auxiliary phase shifting circuit 50, 51 providing a predetermined grid potential for starting one motor 17 and relays 54, 56, under push-button control, for controlling the anode circuits of the valves 41, 42 for starting and stopping.
Patent GB-1514450-A (GB)
Title: Accumulator terminal posts
IPC: H01M50/543
Filed: 1977-04-07
Abstract: The flat pole of an accumulator is intended to be formed so that it can be used reversibly as a round pole. The round pole should enable a round pole terminal to be perfectly fastened, should be simple to assemble, ensure good contact, be robust, and be simple to manufacture. The adapter (1) consists of lead or a lead alloy, in one piece, and has a foot ring (3), the free diameter of which is adapted to the greatest breadth of the flat pole, so that the foot ring (3) can be plugged entirely over the flat pole. One cylinder segment (5) each is fixed to the foot ring (3) via bridges (4), and said segments are arranged opposite each other with a gap (6), which corresponds to the thickness of the flat pole. The convex surface of the cylinder segments (5) is inclined at an angle of about 3 DEG . <IMAGE>
Patent GB-517269-A (GB)
Title: Improvements in manufacture of gasoline and fuel oil by cracking crude petroleum stock
Filed: 1938-05-17
Abstract: 517,269. Cracking oils. SINCLAIR REFINING CO. May 17, 1938, No. 14727. Convention date, June 15, 1937. [Class 32] In the heat-treatment of asphaltic petroleum stock containing wax fractions to obtain gasoline and fuel oils a distillate produced in the process is cracked at high temperature and pressure and the products passed into direct contact with the crude stock in order to vapourize therefrom gasoline and gas oil fractions, and the liquid residue is flashed at pressures below atmospheric to vaporize the wax containing fraction which is then condensed and used as the cracking stock. The distillate oil is forced at 660-800 lb. pressure and at 900‹F. by a pump 7 through cracking coils 1 into a vaporizer 2 where it is mixed with crude stock fed by a pump 8 through preheaters 32, 40 and line 22. The vapours formed pass through line 23 to a fractionating tower 4 while the residual oil is flashed in a tower 3 the pressure being reduced from 20-60 lb. per square inch in the tower 2 to a pressure of 10-25 inches in tower 3. The vapours formed are condensed in heat exchangers and coolers 32, 33 and the condensate is collected in receiver 35 and passed through line 42 into the fractionating tower 4 where the total products of the process are fractionated to give a final gasoline product recovered through lines 43, 38 and coolers 39, 50 to receivers 47, 51, and reflux which is fed through line 41 to the pump 7 as stock for the cracking coils 1. A low boiling gas oil fraction is also collected from the tower 4 as a side stream and fed to a stripper 44 from which it is in part rejected from the system through lines 45, 46 and blended with residual tar from tower 3 to give a fuel oil 'and in part is led as absorption medium to a tower 5 to which the gaseous products of the system are fed from the separators 47, 51. The enriched oil is fed by pump 17 through line 42 into the tower 4. The gasoline condensed in receiver 47 is returned through line 48 to the tower 4 as reflux while the gasoline collected in the separator 51 is stabilized by passing it through heat exchanger 64 into a stabilizer tower 6 having a reboiler element 61 heated by hot reflux from the tower 4 circulated by a pump 13.
Patent GB-573736-A (GB)
Title: A device for tensioning the holding wires of boarding in concrete work by twisting them together
IPC: E04G17/06
Filed: 1943-09-10
Abstract: 573,736. Twisting-tools. ZANOLI, A. Sept. 10, 1943, No. 14861. [Class 45] Apparatus for twisting the loop of binding wire comprises a tool having a hollow handle 8 carrying a bow 1 at one end. Across the bow extends a cranked shaft 20 having bearings in the handle 8 and in the tip 6 of the bow, the protuding end of the shaft having a hook 7 which takes through the wire loop. In use a serrated foot 3 on the bow 1 bears against the object being bound, and the crank 4 is turned by hand. The handle 8 is adapted to hold a retractible drill bit 11 which can be turned by rotation of the crank 4. The bit 11 fits into a parallel bore 10 in an internal sleeve 9 rotatable in the handle 8, the inner end of the bore being non-circular for engagement by the similarly shaped inner end 21 of the shaft 20. A leaf spring 15 extends across the bore 10 and by engaging a slot in the head of the bit can hold the latter in its extended position, while allowing it to be pushed home into the sleeve 9 at will.
Patent GB-1269315-A (GB)
Title: Apparatus for compression moulding powder material within containers
Inventor: OKUBO KEI
IPC: B65B1/24
Filed: 1970-03-26
Abstract: 1,269,315. Rotary table compression moulding. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 26 March, 1970 [31 March 1969 (3)], No. 15001/70. Heading B5A. A compression moulding machine comprises a rotary table 2 which is intermittently rotated and has lug portions 3 equiangularly spaced around its periphery, each lug position having a number of container-retaining means 4, a platform 24 having pockets 25 to be aligned with means 4 at more than two stop positions of table 2, two or more means to supply powder to pockets 25, and two or more means to press the powder into and mould it in the containers 6 in means 4, table 2 being rotated in stages of half the angle between two adjacent lugs so that when powder is being compression-moulded within one half of the containers in one lug at one position where a first group of pockets 25 are located, powder is also being supplied to a second group of pockets 25 at a second position and after one step rotation, powder in the second group of pockets 25 is compressionmoulded within the other half of the containers in the lug while powder is supplied to the first group of pockets 25 for compression-moulding within the first half of the containers in the next lug. Containers 6 are supplied along shoot 7 and fed upwardly into means 4 with their openings downward by pushrods (15, Fig. 3, not shown) where they are retained by magnets (17). As shown each lug contains eight such means 4. Powder is passed from hopper 27, Fig. 4, to rotating hopper 28 rigid with arm 33 which is then swivelled 90 degrees along platform 24 to over dies 25, the bottoms of which are closed by the tops of punch rods 36, hopper 28 being horizontally vibrated during filling. Spindle 37 is then raised to the upper surface of platform 24 and vibrated. Hopper 28 is then returned and the table indexed another stage to align means 4 with dies 25. Press member 38 is lowered and punch rods 36 raised to abut the openings of containers 6, powder then being compression moulded by spindles 37. In this position, only the rearward four containers 6 are filled and moulded, the forward four being filled and moulded at the subsequent moulding station. The eight containers are ejected simultaneously by downward movement of a discharge punch 41 at a further station, punches 41 being mounted on member 43 which also carries brushes 44 to clean the means 4 at another subsequent station.
Patent GB-975330-A (GB)
Title: Production of high-purity sinterable beryllium oxide
IPC: C01F3/00
Filed: 1961-04-26
Abstract: Beryllium oxide is produced by intimate admixing to beryllium sulphate, preferably from 1 to 30% by weight of the beryllium sulphate tetrahydrate, of one or more of urea, ammonium oxalate, acetate or sulphate, and heating to 875 DEG  to 1000 DEG  C. until said sulphate is calcined. The high purity of the oxide makes it particularly suitable for producing sintered oxide compacts, detailed conditions for which are included in the examples.
Patent GB-219774-A (GB)
Title: Improvements in or relating to die stocks
IPC: B23G1/26
Filed: 1923-06-09
Abstract: 219,774. B.S.A. Tools, Ltd., and Ogilvie, W. June 9, 1923. Stocks and dies.-In a die-stock the cover plate 10 by which the dies are enclosed and the detachable handles 3 are secured by screws 7 which engage tapped holes in the ends of the handles and have conical heads 13 engaging countersunk recesses in the cover plate. The cover plate and the sockets 1 which receive the handles are provided with slots 11, 6 respectively, so that when the conical heads have been removed from their recesses the handles may be drawn apart and the dies taken out without removing the screws 7 from the handles. The cover plate has two depending lugs 16 to receive opposed screws 17 for adjusting the dies which lie in a groove 18. A depending sleeve 19 receives a guide bush 20, secured by a screw 21.
Patent GB-776641-A (GB)
Title: Improvements relating to the separation of gases
IPC: B01D53/22
Filed: 1952-06-16
Abstract: <PICT:0776641/III/1> <PICT:0776641/III/2> In the separation of gaseous mixtures by diffusion with the aid of an auxiliary vapour supplied to the secondary side of the diaphragm to increase the partial pressure gradient of the diffusing substance, this auxiliary "separating substance" is supplied in liquid phase as a film, sheet, or vortex supported by a wall which may be heated to promote its evaporation.  In Fig. 2 the separating substance is water vapour supplied by an evaporating film F of hot water overflowing the wall of a reservoir K.  Coke oven gas G is supplied to the primary side A of the diaphragm and the light constituents which diffuse into B are led away with the water vapour, the mixture being directly usable for conversion into hydrogen.  In another modification B is an annular chamber surrounding A, and the separating agent is supplied tangentially to its circumferential wall to form a vortex.  Several such concentric diffusers may be inserted in a common heating vessel K, and may be connected in cascade.  The diffuser may also be constructed as a column, Fig. 6, and a film of cold liquid supplied to the wall of the primary chamber.  The mixture is supplied to the mid-point of the primary side, and the heavy and light fractions drawn off from the bottom of the primary side and the top of the secondary side respectively.  In another form, for removing impurities such as hydrogen from high-pressure synthesis gases, the separating agent trickles down the outer wall of a tubular heating chamber outside which a tubular diaphragm is concentrically arranged within the high-pressure apparatus.  Liquid ammonia may be used as separating substances.  Specifications 112,153 and 270,287 [both in Class 1(i)] are referred to.
Patent GB-294872-A (GB)
Title: Arrangement for mounting telephone selectors and pole changers used in long distance communication installations
IPC: H04Q1/04
Filed: 1928-05-23
Abstract: 294,872. Siemens & Halske Akt.-Ges. July 30, 1927, [Convention date]. Automatic exchange selectors and apparatus.- Selectors and pole-changers (for converting direct current into alternating current for ringing purposes) are resiliently suspended from supporting racks or frames. In the example shown, rotary selectors 7 are mounted by clips 4 on spiral springs 2 secured by further clips 3 to an angle plate 1.
Patent GB-542542-A (GB)
Title: Improvements in and relating to electric radiators
IPC: F24C7/06
Filed: 1940-10-14
Abstract: 542,542. Electric radiators. BERRY, G. J. Oct. 14, 1940, No. 15212. [Class 39 (iii)] A radiator comprises a frame 1 supporting a reflector 3 which carries supports 8, 10 for a bar-type heating element 11. A guard may be slid into guides 7. Two bent metal strips 12 are arranged near the ends of the frame, and a plate 15 is arranged behind the reflector with gaps 17 at the ends for air circulation. The strips 12 allow the radiator to stand in several different positions, either inclined or as in Fig. 2 for cooking. Keyhole slots 18, 19, 20, or other slots or hooks are provided whereby the radiator may be hung on a wall in different inclined positions. The strips 12 may be differently spaced from the ends of the tray, or may be differently inclined.
Patent GB-1537513-A (GB)
Title: Conveyor and method of operating same
IPC: B61B10/02
Filed: 1977-07-14
Abstract: 1537513 Power and free conveyers REDMAN FISHER ENG Ltd 14 July 1977 [14 April 1976] 15217/76 Heading B7L A power and free conveyer has a trolley rail section 12 which may be lowered the drive chain 24 being diverted in this region but still serving to propel the trollies 16. Each trolley has two units 18, 21 respectively carrying main and auxiliary drive dogs 28, 30. On approach section 12 a retractable stop 33 pivots the main dog 28 away from chain dog 27 and stops the trolley, the auxiliary dog 30 being inoperative. As the stop is retracted dog 28 pivots back under gravity and a chain dog urges it on to section 12 before being laterally diverted about the mechanism 14, 15 for lowering section 12. As auxiliary dog 30 passes an abutment 35 it is pivoted into the path of a chain dog which carries the trolley fully on to section 12 before being diverted. A further stop 36 on section 12 stops the trolley and holds dog 28 inoperative whereupon the section may be lowered. On retraction of stop 36, in synchronism with chain 24, dog 28 is re-engaged by the chain and the trolley carried away. Auxiliary dog is returned to its inoperative position by an abutment 38.
Patent GB-1525378-A (GB)
Title: Device for the optical recording on a record carrier of multi-line texts in particular
IPC: G01G23/42
Filed: 1977-04-13
Abstract: 1525378 Selective printing; photographic type-composing MAATSCHAPPIJ VAN BERKELS PATENT NV 13 April 1977 [6 Aug 1976] 15220/77 Headings B6F and B6W [Also in Division G1] Apparatus for recording multi-line texts, e.g. on photosensitive sales labels 27, comprises a device for moving the labels 27 through a recording zone at which there is an optical projector (23) Fig. 1 (not shown) incorporating a fixed matrix of characters 50 in rows extending across the labels 27, the projector (23) being activated to selectively project characters in different rows simultaneously with alignment of different lines 46 of the labels with different rows of the matrix. Labels 27 are fed stepwise past the matrix which is in a liquid crystal cell (30) Fig. 4 (not shown) having electrodes of a shape suitable for producing the desired characters 50 when suitably addressed, e.g. by signals from a weighing machine (11) Fig. 1 (not shown) and a text input unit (20).
Patent GB-458564-A (GB)
Title: Improvements in electronic tubes
IPC: H01J21/02
Filed: 1936-05-29
Abstract: 458,564. Thermionic valves; circuits. TOULON, P. M. G., 39, Rue Carpeaux, Puteaux, Seine, France. May 29, 1936, No. 15276. Convention date, May 31, 1935. [Classes 39 (i) and 40 (v)] A valve comprises two or more interleaved control electrodes traversed by the same electron stream and two or more interleaved collecting electrodes. The electrodes may be pairs of intertwined spirals, and in an amplifying arrangement a push-pull input is applied across the control electrodes, causing deflection of the beam, after preliminary acceleration, portions of the beam falling on one or other of the anodes, Fig. 3 (not shown). In a modified tube, giving two stages of amplification, Fig. 6 (not shown), a coil across the anodes is coupled to a tuned circuit connected to a grid behind the anodes, and the output is taken from a plate behind this grid. In a heterodyne circuit, Fig. 5, a tuned circuit 32 across the deflecting electrodes 28, 29 is coupled to a coil 33 across the anodes 35, 36 and the signal is applied at 41. The intermediate frequency coil 39 is arranged in the lead to a final plate 38 arranged behind the grid 37 which is connected by a condenser 44 to the anode 36 and to a tuned circuit 43. Fig. 7 shows a complete receiving circuit. The signal is applied to the control electrodes 77, 78, and an amplified current appears in the circuit 100. The control electrodes 82, 83 and anodes 84, 85, together with coils 104 and 105, form the heterodyne oscillator and intermediatefrequency energy is supplied to the grid 86. The electrodes 87, 88, 89, 90 form an intermediate-frequency amplifier coupled to the detection circuit 110. The first low-frequency amplifier is formed by the electrodes 92, 93, 94, 95 and the second by the grid 97 and the output plate 99. Screens 96, 98 and 113 are provided.
Patent GB-470035-A (GB)
Title: Improvements in or relating to the conversion of hydrocarbon oils
IPC: F16D43/208
Filed: 1936-05-29
Abstract: In a process for cracking and re-forming oils, of the kind in which the crude oil is cracked cyclically under mild temperature conditions, e.g. 800--950 DEG  F., and a selected low-boiling fraction of the product is reformed at higher temperatures, e.g. 900--1050 DEG  F., in the first stage which comprises a cracking coil 13 and separator 9 surmounted by a dephlegmator 6 from which reflux is recycled to the coil 13 through pipes 18, 21, the crude oil is supplied through lines 4, 7 to the separator 9 so that the oil is vaporized by heat of the cracked products and the vaporous and non-vaporous products are mixed with corresponding products of the cracking operation.  Vapours pass off through a line 23 to a condenser 25 and the condensate is collected in a receiver 28. This condensate when not of the required anti-knock value, or a fraction taken off through a line 46, is reformed in the coil 41 the products passing to a separator 52 <PICT:0470035/III/1> surmounted by a dephlegmator 58.  The temperature of the cracked products is controlled (1) by passing them through a heat-exchanger 43 in heat exchange with part of the products passing from the first stage through a line 39, (2) by mixing directly therewith in a line 55 predetermined reflux condensate collected at the bottom of the column 58, the reflux passing through lines 75, 77 and branch lines 79, 80 situated on opposite sides of the pressure reduction valve 56.  The reflux may be cooled in a cooler 85 and the remainder thereof is passed through a line 75 for further conversion in the coil 13.  The reformed product passes off through a line 62 and condenser 64 to a receiver 67.  Specifications 424,050, and 472,594, are referred to.
Patent GB-385523-A (GB)
Title: Air spaced long distance telephone cables
IPC: H01B11/00
Filed: 1932-05-30
Abstract: 385,523. Cables. SIEMENS & HALSKE AKT:-GES., Siemensstadt, Berlin. May 30, 1932, No. 15327. Convention date, May 30, 1931. Drawings to Specification. [Class 36.] In an air-insulated cable of the type. in which the air space is provided by a cord of insulating material laid helically round the conductor and serving to space an outer insulating cover from it the cord or cover or both are made of comparatively non-hygroscopic materials having low dielectric losses at high frequencies, such as cellulose esters, cellulose ethers, Tjipetir rubber, or rubber specially treated at the source. The materials may be strengthened by embedding threads of artificial silk &c. in it.
Patent GB-1091180-A (GB)
Title: Dispensing closure
IPC: B65D47/06
Filed: 1965-04-10
Abstract: 1,091,180. Container closures; spouts for containers. S. M. LIBIT and A. W. NEWBY. April 10, 1965, No. 15345/65. Headings B8D and B8T. A dispensing closure comprises a resilient nozzle 22 having a wall portion thinner than the remainder of the nozzle wall to enable it to be folded, a releasable detent 43 holding the nozzle in its folded position. The folding of the nozzle may be effected by means of lugs 31 on the body wall of the closure. The outer end of the nozzle may be held in a slot, Fig. 15 (not shown); or the nozzle wall may be modified, Figs. 10-11 (not shown), that part of the wall which is outermost when the nozzle is folded being thinner to enable it to stretch. An integral sleeve depending inside the nozzle, Figs. 16-17 (not shown), may provide a means for closing the bore when the nozzle is folded. The folded nozzle may be held by a pad which closes its end, Figs. 19-24 (not shown); or the nozzle may have a perforated wall at its outer end, Figs. 25-26 (not shown). This wall may have a single hole, an air tube being fitted within the closure as an atomizer. The closure may be screw-threaded as shown; of the snap-on type; cemented on to a container; or moulded integrally with a container, e.g. of the squeeze bottle type. The nozzle may be initially closed at its outer end which is cut off before use, Fig. 4 (not shown). The closure, which may be of polyethylene, may have a flat top for carrying a price label or an impressed mark.
Patent GB-909787-A (GB)
Title: Precision tachometer system
IPC: G01P1/07
Filed: 1959-05-05
Abstract: 909,787. Speedometers. KOLLSMAN INSTRUMENT CORPORATION. May 5, 1959 [Nov. 12, 1958], No. 15353/59. Class 106 (3). A dual display tachometer has a dial and rotatable pointer operated e.g. through a dragcup, and a high-precision digital or counter-type indicator which is masked over the lower speed ranges. A fail-safe solenoid operates a shutter to mask the digital indicator as the speed falls below 50% maximum speed and in the event of voltage supply failure. As shown, a synchronous tachometer motor 25 whose speed is to be measured, drives a pointer 17 through a dragtype coupling 27-28, and also drives through a clutch 38 one input 39 of a differential gear 35. The other input 43 to the differential is driven by a reference motor 50 through a continuously variable change speed gear 41-45-46. The output shaft 55 of the differential drives a screw 58, a nut 59 on which moves the ball cage 46 to vary the speed ratio between the cone 45 and cylinder 41. The nut is driven to a " null " position in which the differential output is zero. The " null " position of the nut 59 along the screw 58 is thus a measure of the speed of motor 25 and is indicated by a decimal counter 20 driven by the screw 58 through gearing 61- 62. A " fail-safe " solenoid 65, when energized from the source 51, holds the shutter 21 in the unmasked position and engages the clutch 38. Should the speed of the motor 25 fall below 50% maximum speed, the usual drag-cup spiral spring 29 biasing the pointer 17, expands sufficiently to engage an electric contact, Figs. 4, 5 (not shown) which through a relay breaks the circuit of the solenoid 65. The solenoid armature 67 is then retracted by its biasing spring 69, moves the shutter 21 to masking position and disengages the clutch 38, resulting in free rotation of the input shaft 36.