baber/WOPTO huggingface dataset:
Patent GB-755669-A (GB)
Title: Improvements in electrodes for use in systems for the underground gasification of coal
Inventor: HART GEOFFREY
IPC: E21B43/24
Filed: 1954-04-09
Abstract: 755,669. Heating coal by passage of current; electrodes. MINISTER OF FUEL & POWER. April 7, 1955 [April 9, 1954], No. 10456/54. Class 39(3). In the underground gasification of coal by passage of current between two electrodes inserted into the coal seam from above, movable means such as abutments 9, 10 carried by. the electrode press a mass 12 of granular carbon or other deformable conducting material tightly between the electrode and the bore hole to give good contact. The electrode comprises a metal tube 4 having at its lower end an inner telescopic portion 3, and between abutments 9, 10 on these parts is arranged a frangible sleeve 11 enclosing an annular space around the electrode to receive the granular carbon or ball bearings 12. Thus when the electrode is lowered and reaches the bottom of the borehole, further pressure on the electrode forces the abutments 9, 10 together, thereby breaking the sleeve 11, which may be of perforated zinc, and pressing the granular material 12 outwards. Shear pins 8 passing through the tubes 3, 4 hold them in extended relation, and the extra pressure on the electrode shears the brass pins to allow the tubes to telescope. The tubes 3, 4 are of stainless steel and are held together by a pin 5 extending across the tube 3 and into vertical slots 7 in the lower tube 4 thereby preventing relative rotation of the tubes. The abutment 10 closes the bottom of the tube 3 and may carry a foot 16 of insulating material to rest on the bottom of the borehole, so that the electrode may be more readily rotated if desired. Coal gases and steam evolved pass up around abutment 9 and enter the tube 4 through slots 13 therein. Below these slots, insulating rings 14 are supported around the tube 4 by welded projections 15 thereon.
Patent GB-556547-A (GB)
Title: Improvements in or relating to electro-magnetically operated valves
IPC: F16K31/40
Filed: 1941-12-30
Abstract: 556,547. Valves. BENDIX AVIATION CORPORATION. Dec. 30, 1941, No. 10465/43. Convention date, Dec. 26, 1940. Divided out of 556,520, [Group XXI]. [Class 135] A valve device for connecting a working port either to pressure or to exhaust has a tubular valve member actuated by fluid pressure under the control of an auxiliary valve. This valve controls a passage through the tubular valve and is actuated by electromagnetic means acting on an armature slidably mounted on its spindle. As shown, the main valve has a larger diameter portion slidable in a bore 33 and a smaller diameter portion slidable in a bore 34 the inclined shoulder between these two parts co-operating with a seat 60 to seal the pressure inlet port 28 from working port 30. In the position shown slots 54 in the smaller diameter part connect the working port with the exhaust port 32 but when the valve is moved to the left the port 32 is blanked off and the slots 54 connect the ports 28, 30. The fluted auxiliary valve has a limited sliding movement in the larger diameter portion and is normally held in contact with its seat which has a restricted aperture by a uno-helical spring 76. A spindle 68 with a head 70 is secured to the auxiliary valve and slidably supports a fluted armature 72 for a solenoid 44. The solenoid is secured by a nut 48 and member 46 about a flanged tubular member 38 secured by a cap-nut 40 to the main valve casing. When the solenoid is de-energized inlet pressure leaking through a restricted passage 78 holds the main valve in the position shown. When energized, the armature is moved against the action of a light spring 74 to impart a hammer blow to the head 70. This opens the auxiliary valve to connect the chamber 85 to exhaust and permit inlet pressure acting on the shoulder 86 to move the main valve to the left.
Patent GB-1184611-A (GB)
Title: Stranding Machine.
Inventor: BIAGINI ALBERT ALEBRANDO
IPC: D07B3/00
Filed: 1967-03-06
Abstract: 1,184,611. Stranding machines. A. A. BIAGINI. 6 March, 1967 [4 March, 1966; 30 Jan., 1967], No. 10499/67. Heading D1T. In an apparatus for twisting advancing wires, strands, ropes or the like 80 by pulling the wires through a die 70 and then twisting the wires together, there are twist limiting means 88A, about which each wire is individually and at least partially wrapped, positioned at a point intermediate the die 70 and the wire supply to terminate twisting of the wires at that point. The means 88A may comprises spools rotatable on upstanding posts, the wires 80 being wrapped around said spools. In Fig. 2A a core wire 24 is drawn from a reel 26 mounted in a rotating holder 28 via a slip coupling 58. When the wires 80 have passed the twist limiting means 88A they are spaced around the core wire 24 by fixed guide plates 66, 68 and then passed through the die 70. The guide plate 66 is adjustable longitudinally of the machine. Second and third layers of wires may be applied by rotating members 136, 136A carrying supply bobbins 138, 138A mounted on slip couplings. In Fig. 2B the resulting strand passes between a first set of rollers 162A that cause the strand to follow a zig-zag path in a first plane, and then between a second set of rollers at 162B that cause the strand to follow a zig-zag path in a second plane normal to said first plane, the flexing of the strand causing it to become unstressed. A capstan 30 pulls the strand through the machine and has adjustable gears to permit variable pulling ratios. The rotating cage 246 carries traverse means 254 and a take-up drum 244.
Patent GB-625704-A (GB)
Title: Improvements in or relating to automatic telephone systems
IPC: H04Q3/00
Filed: 1947-04-21
Abstract: 625,704. Automatic exchange systems. ERICSSON TELEPHONES, Ltd., and DRYSDALE, L. H. April 21, 1947, No. 10544. [Class 40 (iv)] In a single motion selector which moves to a control contact selected by a marker switch and then on release of a dialling relay either hunts for a free outlet (group selector) or responds to a further digit (final selector), the commencement of an impulse before the release of the dialling relay can start the selector to move over the last marked but now unwanted group before the marker switch has responded to the impulse. Group selector, Fig. 1. Line, release and dialling relays A, B, C energize in the usual manner and impulses are repeated to the control switch M. Only the digits 2 to 4 are used and as soon as the second impulse is completed the switch M steps to position 2. The selector S is started by the release of C and hunts in the wanted group, the outlets being tested over C2 and the relay T. If however a further impulse commences before C falls back, then the selector 5 starts over the unwanted group. The drive circuit being completed over A2 (released), C3 (held) and the wiper M2. The marker switch steps to position 3 at the completion of the impulse and clears the control contact for the next group over wiper M3. A further control contact is cleared over wiper M2 if the digit is 4. If no idle outlet in the wanted group is found, the selector stops on the next control contact and a busy signal is given from B.T. A busy signal is also given if any digit other than 2 to 4 is dialled. Final selector, Figs. 2 and 3. Line, release and dialling relays AA, BB, and CC operate in the usual manner, the impulses of the tens digit are repeated to the marker switch and the final selector SS rotates to a position immediately preceding the wanted numerical group in accordance with markings applied by the wipers MM3 to MM7. As before, at the beginning of an impulse the selector can start to move over the unwanted group before the marker switch responds. A busy signal is given by the operation of relay EA if a digit greater than 5 is received. Relay E operates when the selector has taken up its position at the end of the impulse train so that the final dialling train is repeated directly to the drive magnet SS of the selector, which rotates to the required outlet in the selected group. Relay EA is operative during the final train and prevents further operation of the marker switch. At the completion of the final train CC, E fall back in succession. During the release of E, relay H tests the wanted line and if idle connects ringing current through relay F which operates upon reply and completes the connection: If the wanted line is engaged, busy tone is connected when E releases.
Patent GB-1393076-A (GB)
Title: Series ac commutator motor with regulated speed
IPC: H02P25/14
Filed: 1973-03-05
Abstract: 1393076 Control of commutator motors MALTE MANSON AB 5 March 1973 [3 March 1972] 10570/73 Heading H2J A commutator motor has two field windings  L1, L2 carried on respective poles, each of which has a second winding L3, L4 forming respective current transformers with the windings L1, L2, which transformers provide a firing signal, via rectifier Z4-7, resistors R1, R2, R3, capacitor C1 and diac Z3, to a controlled diode Z2 in antiparallel connection with an uncontrolled diode Z1, the arrangement being such that for a range of low motor loads the signal from the transformers is insufficient to break down the diac Z3 so that the motor receives alternate half cycles of an A.C. supply through the diode Z1, whereas for a range of high loads the diode Z2 is fired at each half cycle so that the motor receives the full wave A.C. supply. A speed/load characteristic such as that shown in Fig. 2b is thus produced, the characteristic having a first portion (for low loads) following the speed/load characteristic for half wave A.C. supply joined by a "knee" portion c to a second portion (for high loads) following the speed/load characteristic for full wave A.C. supply, the overall effect being to maintain the speed in a predetermined range over the range of motor loads. Diac Z3 may be replaced by a relay whose coil is connected across members R2, Cl, and whose contacts are in series between members Z4-7 and R3, Fig. 4 (not shown). A half wave rectifier may be used in place of rectifier Z4-7, Fig. 3 (not shown).
Patent GB-1388256-A (GB)
Title: Backflush filter apparatus
IPC: B01D29/01
Filed: 1973-03-05
Abstract: 1388256 Filter with reverse flow cleaning FORTUNA-WERKE MASCHINENFABRIK AG 5 March 1973 [20 March 1972] 10624/73 Heading B1D Filtered liquid accumulates in the downstream chamber 30 of a filter housing, compressing air cushion 31, by virtue of outlet 20 being restricted, and when valve 17 is opened this liquid passes in reverse direction through filter element 12. Unfiltered liquid supply through inlet 13 is maintained and enhances the reverse flow by nozzles 13d, 15 acting as a jet pump. Element 12 is a helical wire coil with protruberances normally maintaining the minimum spacing. The element is secured to fixed flange 13b at one end and to movable plunger 16 at the other, and an opening valve 17 the new pressure distribution moves plunger 16 down to open out the coil. The element 12 may be of oval-section wire. Fig. 4 (not shown) illustrates several elements of coiled form extending between a fixture (24) and plunger (25) and operation is similar to Fig. 3. In Figs. 1, 2 (not shown) a flat wire mesh filter element (2) is cleaned by reverse flow induced by a jet pump-inlet (10, 11) and by a downstream spring-loaded diaphragm (7, 8). The liquid accumulated downstream of the filter elements may maintain from outlet 20 during reverse flow cleaning.
Patent GB-268559-A (GB)
Title: Improvements in lateral splash guards for road vehicles
IPC: B62D25/18
Filed: 1926-04-23
Abstract: 268,559. Burns, W. April 23, 1926. Lateral-splash guards for vehicle wheels comprise an inverted V-shaped frame 7 having a part circular portion 8 at its vertex sprung into engagement with a fitting 4 on the hub cap or like part of the wheel and locked into engagement by a keeper 12, the frame having two downwardly extending parallel arms 10 upon which the mud-screen is slidably mounted, and the whole being adapted to rock on the wheel hub against the action of resilient means. The screen comprises a strip 15 of rubber &c. carried by a member 16 extending around its upper edge and secured to a plate 17 having beaded edges 18. The plate 17 is provided on its inside face with guide plates 20 sliding on the arms 10 which carry rubber buffers 11 and have their lower ends connected by a bar 13. The keeper 12 swivels on one arm of the frame and has a hooked end for engagement with the other arm. The fitting 4 has a peripheral groove to receive the part 8 of the frame and is mounted on a ball bearing on a bolt 5, rotation of the guard about the hub being restrained by a spring 24 adjustably connected at one end to the mud guard 27 by a, chain 25 and connected at its other end to a V- shaped wire stay 21 attached to eyes 9 on the frame 7. The Provisional Specification describes the lower ends of the frame 7 as being formed into short helices having horizontal axes, the screen having apertures threaded on the helices so that the frame 7 is held in engagement with the hub fitting without the use of the keeper, and the screen being, if desired, elastic, so that it is stretched when carried on the helices.
Patent GB-886033-A (GB)
Title: Improvements in lamp shades
IPC: F21V1/06
Filed: 1959-03-26
Abstract: 886,033. Lampshades. DE SENTMENAT, J. A. C. March 26, 1959, No. 10716/59. Classes 75(2) and 75(3) A lampshade comprises an upper frame member 7 and a lower frame member 6 spaced from each other and having a plurality of pegs thereon, and two sets of lanceolate, laminar elements 1, 2, the elements 1 of one set being shorter than the elements 2 of the other set, the elements being bowed between the upper and lower frame members with their ends hooked to the pegs, the elements of one set alternating with the elements of the other set around the peripheries of the frame elements with the elements of the shorter set overlapping those of the longer set in the peripheral direction and being spaced therefrom in the radial direction. The elements 1, 2 may be translucent and are of flexible material, such as plastic or wooden laminations. The pegs are arranged in pairs, the elements 1 being hooked on to a pair of pegs and the elements 2 on a peg of each of two adjacent pairs. The parts 6, 7 are connected by rods 8, 9 hinged to the part 6 and carrying a lampholder 10 to which the part 7 is secured by a threaded stud and a nut 12. The shade may be collapsed and packed flat for transport and storage as shown in Fig. 4.
Patent GB-236001-A (GB)
Title: Improvements in or relating to chimney, ventilator or like cowls
IPC: F23L17/10
Filed: 1924-05-01
Abstract: 236,001. Parker, Winder, & Achurch, Ltd., and Pearce, H. E. May 1, 1924. Chimney and ventilating-shaft tops and terminals.-A revoluble chimney &c. cowl, of the kind comprising downwardly-extending vanes 35 connected at their lower ends to a band 31 extending around the upper end of a stationary portion 32, has the vanes 35 formed with a central supporting portion 38 and with outer and inner curved substantially-triangular portions 39, 40, the ends of the portions 38 being formed as tongues 41 which are passed through double slots 40a in the bands 30, 31 and finally bent over. The vanes 4 are also connected to the conical top portion 3 by tongue- and-slot connections. Welded to the underside of the cone 3 is a smaller inverted cone 13, Fig. 3, the two cones 3, 13 being secured in a central spindle 12 by nuts 14, 15. A cap 20 on the spindle 12 is secured by a bayonet-slot connection with a bearing sleeve 22 supported by brackets 24 on the part 32. In a modified construction, the cone 3 is formed of larger dimensions to serve as a cover to prevent the entrance of rain.
Patent GB-1110121-A (GB)
Title: Thrust-generating device
IPC: F16H25/18
Filed: 1965-03-13
Abstract: 1,110,121. Wedges. P. G. JONES. 25 May, 1966 [13 March, 1965], No. 10727/65. Heading F2K. Two members 10, 11, having non-parallel facing surfaces 10a, 11a forming a wedge-like throat, are urged apart when a group of at least three parallel rollers, supported in a cage and arranged transversely between the surfaces 10a, 11 a with their axes parallel and in staggered formation so that they are in rolling contact with their neighbours and with one or other of the surfaces 10a, 11a is moved towards the narrow end of the throat. The member 10 may be fixed and the member 11 pivoted at 12, or both may be pivoted, the member 10 being optionally supported on stiff springs. The roller 16 is shorter than rollers 13-15 and 17, and is received in a recess having ramped ends, the movement of the group of rollers causing the roller 16 to rise out of the recess to assist movement of the members 10, 11. The rollers 13, 14 ride over the recess. In Figs. 5, 6 (not shown), members (31, 32) having non-parallel plane facing surfaces are moved linearly towards and away from each other. In Figs. 3, 4 (not shown), a member (23) is movable towards and away from a member (21) having a central pivot (22). When the rollers are moved to a position symmetrical relative to the pivot (22) the facing surfaces of the members are parallel and the member (23) is locked against return movement. The cage for the rollers comprises side-plates (60), (Fig. 8, not shown) between which the end rollers (58, 59) are rotatably mounted. The intermediate rollers (61-64) are interconnected by links (65-67) to form a roller chain, further links (68) connecting the chain to at least one of the end rollers. In Fig. 7, the member 42 is raised and lowered repeatedly as the rollers 44- 49 are moved between a flat surface 50 and an undulating surface 51, 53, 54, 55, the rollers 44, 45 being connected by side-links (not shown). In a modification, a continuous ring of rollers in a cage are rotated between a flat annular member and an undulating annular member to reciprocate one of the members.
Patent GB-475267-A (GB)
Title: Improvements in and relating to mercury switches
IPC: H01H29/18
Filed: 1936-04-15
Abstract: 475,267. Mercury switches. BURGESS, A. F. (Adlake Co.) April 15, 1936, No. 10839. [Class 38 (v)] In a switch in which energization of a coil 26 attracts a member 19 causing variation in the level of mercury 18 and consequent closing or opening of circuits, the lead 13 is arranged in a protuding portion 25 of the container. The member 19 consists of an outer magnetic tube 21 and an inner glass thimble 20 which are held together by fingers 23 on the tube 21 engaging between the coils of a spring 22 arranged on the end of the thimble 20. The spring 22 besides acting as a buffer serves as a screw thread enabling the longitudinal position of the tube 21 to be adjusted relatively to the thimble 20. In the form shown, circuit is closed between two leads 11, 13. Raising the displacer 19 causes the mercury to leave the lead 13 and subsequently engage the lead 12. The thimble in its lower position rests on a coil spring 33. In a modification, Fig. 7, the thimble has an enlarged portion 39 causing a relatively quick make and break. For alternating current the sleeve 21 is of cold rolled steel case-hardened and ground. For direct current it is of soft iron and then preferably is provided with a guide washer 35 of tool steel with projecting lugs. Specifications 428,514, 428,652, and 433,740 are referred to.
Patent GB-347849-A (GB)
Title: Improvements in the manufacture and production of pure zinc oxide and zinc carbonate
IPC: C01G9/00
Filed: 1930-04-05
Abstract: The impure grey-black zinc oxide or carbonate obtained in the production of sodium hydrosulphite and of the sodium salt of formaldehyde sulphinic acid is bleached by treating with mild oxidizing agents such as air, oxygen, peroxides, including hydrogen peroxide, or alkali or alkaline earth hypochlorites. Examples relate to the treatment of the residues in aqueous suspension, and also to the oxidation by means of air of thin layers spread on an iron plate heated to below red heat.  The purified products may be employed as fillers in the vulcanization of rubber.ALSO:Zinc oxide or carbonate, for use as a filler in the vulcanization of rubber, is obtained by bleaching the impure residues obtained in the production of sodium hydrosulphite and of the sodium salt of formaldehyde sulphinic acid with mild oxidizing agents such as air, oxygen, peroxides, including hydrogen peroxide, or hypochlorites.
Patent GB-309311-A (GB)
Title: Tire tube vulcanizer
IPC: B29D23/24
Filed: 1928-04-13
Abstract: 309,311. Fetter, E. April 13, 1928. Vulcanizing tyres.-A tyre-tube vulcanizing mould of the watch-case type comprises members 10, 11 which can readily be replaced by others so as to produce various sizes of tube. The upper portion of the mould carries loosely a flat ring member 20 and a flexible bag 25 which is supported with pressure fluid to force the member 20 against the members 10, 11 after the mould has been closed by the locking ring 3. The base member 18 and the members 10, 11, 20 are connected together by pipes which may be flexible and are supplied with heating fluid.
Patent GB-611508-A (GB)
Title: Improvements in or relating to shortenings
IPC: A23D9/02
Filed: 1945-05-01
Abstract: Dry plastic edible fats such as lard having a sufficiently high solid-to-liquid ratio to be free from "weeping" at room temperature when packaged and yet possessing at room temperature a penetration value sufficiently high for satisfactory culinary use, are made by cooling the molten fat to lower the temperature to at least 10 DEG C., e.g. to 0 DEG  C., and continuing the cooling to absorb sufficient heat of crystallization to prevent rising of the temperature to above 10 DEG  C.  The fat may be agitated during the cooling, and, if desired, aerated.  The fat may be packed at the temperature of at least 10 DEG  C. and maintained at this temperature for tempering.  U.S.A.  Specifications 2,101,496, 2,174,364, 2,174,365 and 2,304,452 are referred to.  The Specification as open to inspection under Sect. 91 comprises also rapidly cooling the molten fat from the liquid to the solid state at any low temperature and continuing the cooling until all the latent heat of crystallization has been absorbed.  This subject-matter does not appear in the Specification as accepted.ALSO:Dry plastic edible fats such as shortenings having a sufficiently high solid-to-liquid ratio to be free from "weeping" at room temperature when packaged and yet possessing at room temperature a penetration value sufficiently high for satisfactory culinary use are made by cooling the molten fat to lower the temperature to at least 10 DEG  C, e.g. to 0 DEG  C, and continuing the cooling to absorb sufficient heat of crystallisation to prevent rising of the temperature to above 10 DEG  C.  The fat may be agitated during the cooling, and, if desired, aerated.  The fat may be packed at the temperature of at least 10 DEG  C and maintained at this temperature for tempering.  U.S.A. Specifications 2,101,496, 2,174,364, 2,174,365 and 2,304,452 are referred to.  The Specification as open to inspection under Sect. 91 comprises also rapidly cooling the molten fat from the liquid to the solid state at any low temperature and continuing the cooling until all the latent heat of crystallization has been absorbed.  This subject-matter does not appear in the Specification as accepted.