baber/WOPTO huggingface dataset:
Patent GB-1220810-A (GB)
Title: Improvements in electrical circuits for use in vehicle testing equipment
Inventor: HURN JOHN CHARLES
IPC: G01L5/28
Filed: 1967-05-24
Abstract: 1,220,810. Measuring power electrically. CAR-ELECTRICAL (NOTTINGHAM) Ltd. May 14, 1968 [May 24, 19671 No. 24134/67. Heading G1N. The power output and speed of a motor vehicle are measured during test by causing a vehicle wheel 3 (Fig. 3) to drive a tachogenerator 4, feeding a suppressed zero meter 5 indicating speed above a preset value, and a torque absorber 9, the torque being measured electrically at 7 where it is combined with the speed signal from the tachogenerator 4 to provide an indication of power at 8. The lower range of speed signals is suppressed by a series Zener diode (Figs 1, 2 not shown).
Patent GB-886043-A (GB)
Title: Recovery of helium from gas mixtures
Inventor: ARMOND JOHN WALTER
IPC: C01B23/00
Filed: 1959-07-14
Abstract: In a process for recovering helium from a helium-containing gas mixture, the latter is maintained in contact with the exterior of a plurality of closed cells, the walls of which are made of material selectively permeable to helium, for a period of time sufficient to permit helium to permeate into the interior of the cells.  Residual gas mixture is then withdrawn from contact with the cells and thereafter the helium permeating outwardly from the cells is collected.  Suitable apparatus comprises a container, which may be provided with hestripmeoms, housing a plurality of closed cells, the walls of which are selectively helium-permeable, and means for selectively connecting the container to a source of helium-containing gas mixture, to means for withdrawing residual gas mixture from the container, or to helium collecting means. The plurality of closed cells may consist of a block of "foamed" silica or glass which may be drilled so as to provide one or more small diameter holes through the block, so as to increase the surface area.  Alternatively, the plurality of cells may be formed by a bundle of thin-walled tubes, each sealed at each end.  If desired withdrawn residual gas mixture may be recycled with fresh helium-containing gas.  The helium-containing gas mixture may be provided by an air separation plant.  Specified materials selectively permeable to helium are fused silica and glasses sold under the Registered Trade Marks "Vycor" and "Pyrex".
Patent GB-978902-A (GB)
Title: Improvements in or relating to mountings for engine-gearbox-axle units on vehicles
Inventor: TAPP GEOFFREY EDWARD ERNEST
IPC: B60K5/00
Filed: 1962-06-22
Abstract: 978,902. Mounting engines; frames for endless track vehicles. COUNTY COMMERCIAL CARS Ltd. June 21, 1963 [June 22, 1962], No. 24173/62. Heading B7H. A track frame and engine mounting in an endless track vehicle comprises track frames 14 in which are mounted track supporting rollers 15 and upon which a plate 17 straddling the engine is mounted by lugs 19. The engine 10, gear-box 11, transmission 12 and half axle casings 13 are formed as a unit to which extensions 16 the track frames 14 are connected by rubber-bushed pivots interposed between lugs 5 on the axle casings 13 and brackets 3 secured to the extension 16. A transverse rocking lever 23 is pivoted at 22 to the plate 17 and is connected to the engine by pin-jointed links 24 and brackets 28. A frame member 20, 21 is rigid with the plate 17 and connected to the axle casings 13 by a pin joint between brackets 31 and 29. Load-handling apparatus and a driving cab may be mounted upon the frame 20, 21 and track driving sprockets are connected to axles 32 extending from the casings 13. In a modification, Fig. 2, an arched bar 34 is pivoted at 35 to plates 28 affixed to the engine and has affixed thereto a channel 36 in which is mounted a screw 38 through which clamping pressure is applied to a pair of resilient pads 40 and a bar 39 mounted between lugs 37, thereby connecting the bar 34 to the plate 17.
Patent GB-972243-A (GB)
Title: Inert gas generator
IPC: B65D90/44
Filed: 1961-07-05
Abstract: <PICT:0972243/C1/1> <PICT:0972243/C1/2> An inert gas (comprising a major proportion of carbon dioxide and nitrogen with or without water vapour) generator comprises a base or undercarriage on which is mounted a combustion chamber, means for supplying to said combustion chamber a substantially stoichiometric combustible mixture of air and a liquid fuel, cooling means connected to said combustion chamber for cooling the combustion products, a fan for supplying cooling air to said cooling means and a power-operated means for driving said fan. In Figs. 1 and 2 air is supplied to the chamber 12 by blower 15 driven by motor 17, via air supply pipe 16.  The motor 17 also drives an oil supply pump which conveys a fuel volume corresponding to the air volume to burner nozzle 20 via fuel pipe 18.  The combustion gases pass into a collecting chamber 21 connected laterally to a conduit 22 of sinuous design, which serves as a precoder and has an outlet 23 leading to a second cooler 25 consisting of several sections connected in series each of which consists of a top and bottom collecting chamber 26, 28 which are connected by vertical pipes 27, which pipes are subjected to an intense air stream by a fan housed in casing 30, driven by electric motor 31.  Cowls 32 and 33 guide the air stream, cowl 33 being on the suction side of the fan and is connected to the final cooler 35 from which the inert gas is taken via outlet 36.  In a modification (Figs. 3 and 4), the tube coils 42 of the precoder and the combustion chamber 12 <PICT:0972243/C1/3> <PICT:0972243/C1/4> are surrounded by a liquid cooling jacket, the sections of which are connected by pipes 44, 46, 47 to cooler 48.  The exhaust gases of the engine are added to the inert gas by connecting pipes 57 to supply pipe 56 of blower 55. Pump 45, injection pump 51, fuel supply pump 52, combustion air blower 55 and cooling fan 53 are driven by internal combustion engine 50.
Patent GB-1277722-A (GB)
Title: Switch operating mechanism
IPC: G05G25/00
Filed: 1970-05-19
Abstract: 1277722 Snap action mechanisms; high voltage switches S & C ELECTRIC CO 19 May 1970 [1 Aug 1969] 24277/70 Heading H1N A snap-acting operating mechanism for an electric switch comprises two levers 83, 115 and a flat spiral spring 90 all arranged coaxially. The first lever 83 is latched in one or the other end position by respective latches 62, 72 while the second lever 115 has cam surfaces 106, 107 for releasing the latches. The inner and outer' ends of the spring 90 are connected respectively to an arbor 98 and an anchor 93 both also pivoted about the axis. The arbor 98 has a downturned portion 101 engaging in identical slots 80 in the two levers while the latter has respective upturned portions 84, 116 which co-operate with the outer end 92 or the anchor 93. The spring 90 is prestressed so that portion 101 is held in engagement with the end 82 of the slot 80 in the first lever 83 and the outer end 89 of the spring in engagement with portion 84. The second lever is retained in its end positions by detents 122, 123. The first lever 83 is coupled by an arm 30 to the switch (Figs. 1-3, not shown) which may be part of a high-voltage switchgear and as described has three pivoted blades moving in arc chutes. The second lever 115 can be driven manually by a hexagon wrench attached at 38. When the lever 115 is driven anticlockwise (Fig. 5) to open the switch the upstanding portion 116 engages the spring anchor 93 to wind the spring from its outer end; at the end of this movement cam 106 releases latch 62 and the first lever 83 is rotated rapidly anticlockwise by spring arbor 101 acting on the end 82 of slot 80. The lever 80 is arrested by a buffer 87. When the lever 115 is subsequently moved clockwise to close the switch the end 80 of the slot 80 in lever 115 engages portion 101 to wind the spring from its inner end until cam 107 releases latch 72 and lever 83 is driven clockwise by spring anchor 93.
Patent GB-1062015-A (GB)
Title: Improvements in or relating to audio teaching aid systems
Inventor: RHODES JOHN GEORGE LAYCOCK
IPC: G09B5/12
Filed: 1964-06-11
Abstract: 1,062,015. Teaching aid systems. SHIPTON ELECTRONICS Ltd. June 11, 1965 [June 11, 1964], No. 24278/64. Heading G5B. A teaching system comprises a central reproducing equipment for reproducing recorded lessons and means for selecting a lesson for transmission to a particular student position. Each lesson (3) is divided into a number of sections, each section being recorded on a separate endless tape (8) driven by a common motor (4). At the end of each section, a control signal recorded on the tape actuates a bi-stable circuit (14) to disengage the drive (9) to the tape and also feed a signal to a counter (15). When all the sections come to an end the counter (15) produces an output which re-sets all the bi-stable circuits (14) to re-engage the drive to all tapes. Thus playback of all sections of each lesson start at the same time. A student may select any lesson, or any part of a lesson, by dialling an appropriate code and once selected the sections of the lesson are automatically sequentially fed to the student by selector (13). The control signals may be magnetically, optically or mechanically sensed. Each student is provided with a separate machine for recording answers, and provision is made for the tutor to monitor any student position.
Patent GB-759773-A (GB)
Title: Continuously variable speed gears
IPC: F16H15/38
Filed: 1953-09-03
Abstract: 759,773. Variable-speed gearing. RENNERFELT, S. B. Sept. 3, 1953. No. 24379/53. Class 80(2) In variable-speed friction gearing with tiltable rollers 25 engaging toric races in driving and driven discs 9, 10, the driven disc 10 is coupled to the output shaft 3 through a cam-and-ball device 11, 13, 14 so that axial pressure is applied to disc 10 dependent on the load, and a considerable additional axial pressure is applied directly to disc 10 by springs 21. The cam surfaces are formed on the ends of sleeves 11, 13, of which sleeve 13 is keyed on shaft 3 and abuts through a member 15 and the inner race of a ball bearing 16 against a nut 17 on shaft 3, while sleeve 11 is loose on shaft 3, rotates with disc 10 and abuts against the latter through spring washers 18. The springs 21 are arranged between disc 10 and a member 22 abutting against member 15 through a thrust bearing 23. Disc 9 rotates with a sleeve 7 geared to input shaft 4 and abuts against the sleeve 7 through spring washers 20, the sleeve 7 in turn abutting against a collar on shaft 3 through a thrust bearing 19. In order to allow for inequalities in the cam surfaces, sleeve 11 may have radial freedom by being Oldhamcoupled to disc 10 (Fig. 3, not shown) or by having play on shaft 3 and a ball bearing 29, Fig. 5, on the shaft at the remote end. Specification 759,820 is referred to.
Patent GB-232121-A (GB)
Title: Improvements in measuring taps for bottles, urns, casks, barrels and the like
IPC: G01F11/22
Filed: 1924-10-15
Abstract: 232,121. Thomas, G. M. Oct. 16, 1924. Moving-chamber apparatus.-Figs. 1 and 2 show a tap for delivering measured quantities of liquid from bottles, urns, casks, barrels and the like of the kind in which a body portion containing two measuring chambers is adapted to be rotated on a taper plug having an inlet and an outlet at its upper and lower ends respectively. The body B is divided into two measuring chambers C<1>, C<2> by a partition W, and is arranged in a taper plug P furnished on one side with a port K leading to an inlet bore I in a screwed spigot S, and on the other side with a port L leading to the outlet spigot O. Each measuring-chamber is provided with an inlet port F and an outlet port E so positioned that when one chamber is in communication with the inlet passage the other compartment can empty through the outlet 0. A groove N provides a vent passage between ports M<1>, M<2> to facilitate the emptying of the compartments. A handle H is provided for operating the cock. Specification 12475/01 is referred to.
Patent GB-986488-A (GB)
Title: Improvements in or relating to submerged arc welding
Inventor: ARIKAWA MASAYASU
IPC: B23K35/362
Filed: 1961-07-06
Abstract: 986,488. Welding by fusion. KOBE STEEL WORKS Ltd. July 6, 1961, No. 24549/61. Heading B3R. In submerged arc welding work having a welding groove, a basic flux is put into the groove first and is covered by an acidic flux. Both fluxes may be in the form of powder. The basic flux may be in the form of a coating 6, Fig. 2, on a welding rod located at the bottom of the groove 2 and covered by powdered acidic flux 4. Alternatively the basic flux may be in the form of lumps 7, Fig. 3, strung on iron wires 8. Alloying or deoxidizing agents, e.g. ferromanganese, ferrosilicon, nickel, aluminium or ferromolybdenum, may be included in either of the fluxes. The deposited metal contains less than 0.05% oxygen less than 0.2% carbon, over 0.4% manganese and over 0.15% silicon.
Patent GB-163729-A (GB)
Title: An improved contact for thief alarms or other electrically operated devices
IPC: H01H35/14
Filed: 1919-10-08
Abstract: 163,729. Cressall, F. Oct. 8, 1919. Gravity switches.-A contact for thief-alarms or other electrically-operated devices consists of a pivotally mounted body b of circular or other cross-sectional outline, having a number of resilient contacts d longitudinally arranged on, or in grooves c in, the body b. As adapted for a burglar or thief alarm of the kind described in Specification 148,602, the body b is made divergent from its pivotal end towards the free ends of the contact wires d, which are secured at their upper end in the grooves c, so that their free ends project beyond the contour of the body b. The pendulum weight e embraces the wires d and body b, and the casing is provided with a suspending hook x, which forms one terminal of the electric circuit, the other terminal being formed by an insulated contact plate f. On relative movement between the body b and the casing, the wires d make contact with the ring f, their resilience affording a comparatively long contact.
Patent GB-1384681-A (GB)
Title: Preparation of diglycolic acid
IPC: C07C51/27
Filed: 1973-05-23
Abstract: 1384681 Diglycolic acid HOECHST AG 23 May 1973 [25 May 1972] 24620/73 Heading C2C Diglycolic acid is prepared by reacting diglycol with dinitrogen tetroxide and/or nitrogen dioxide. An inert organic solvent, e.g. methylene chloride, chloroform, carbon tetrachloride, monofluoro-trichloromethane or 1,1,2-trichlorotrifluoro-ethane or mixtures thereof may be present. A preferred temperature range of 0‹ to 110‹ C. and molar ratio of diglycol to dinitrogen tetroxides of 1 : 2 to 1 : 8 is used.
Patent GB-1340244-A (GB)
Title: Mixing machines
IPC: B29B7/18
Filed: 1971-04-19
Abstract: 1340244 Mixing USM CORP 19 April 1971 [18 March 1970] 24641/71 Heading B1C A mixing machine comprises frame members 14, 15, rotors 19, 20 extending between the members, and side assemblies 40, 52, 79, 80, 80a and 41, 52, 79, 80, 80a held in grooves 81 (Fig. 5) in the frame members by strips 82, 83. The mixing chamber 16 is formed between the walls 42, 43 of the side assemblies and ends plates 37, 38 housed in recesses 56 in the frame members. The rotors pass through openings 58, 59 in the end plates, seals being provided to prevent leakage through the end plates. Material to be mixed is pressed through a hopper 17 by a plunger (not shown) into the chamber. Mixed material is discharged through a door 18. Cooling passages 74 are provided in the side assemblies, and annular cooling passages having connections 62, 63 are arranged in the plates 37, 38. (For Figure see next page)
Patent GB-728467-A (GB)
Title: Improvements in or relating to rotor and stator mountings
IPC: H02K49/10
Filed: 1952-10-01
Abstract: 728,467. Magnetic couplings. SOC. ANON ANDRE CITROEN. Oct. 1, 1952 [Oct. 2, 1951], No. 24645/52. Class 35. A stationary member 2 enveloped in a compressed gas or vacuum inside a rotating non-magnetic casing 1 fixed to rotating shaft 3, is fixed in position in spite of rotation of the outer envelope by means of permanent or electromagnets 6.
Patent GB-319896-A (GB)
Title: Improvements in or relating to ironing machines
IPC: D06F67/08
Filed: 1928-08-28
Abstract: 319,896. Lister, V., and Lister, S. W., (trading as Lister Bros.). Aug. 28, 1928. Ironing-machines with rollers rotating against concave surfaces.-The concave bed of a Decoudun machine comprises a flexible metal sheet 12 and a number of steam pipes 13 cast in soft metal blocks 14 and covered by heat non-conducting material 15, with a metal cover plate 16. The bed may be perforated throughout its thickness. The bed may be anchored to the stationary framework at one end and its other end supported by a lever and pressure-applying weight or spring arrange-. ment to maintain contact between the bed and roller. Or both ends of the bed may be anchored and the roller be moved to and from the bed to apply and release the pressure.
Patent GB-291070-A (GB)
Title: New or improved method for increasing the wetting and penetrating capacity of liquids for the treatment of textiles and leather
IPC: D06M13/35
Filed: 1927-09-20
Abstract: 291,070. B÷hme Akt.-Ges., H. T. May 27, 1927, [Convention date]. Wetting-out agents for unspecified processes.- The wetting and penetrating properties of liquids used in the leather industry are improved by adding a mixture of a heterocyclic base and an aromatic sulpho acid, which is alkylated on the nucleus and is preferably polynuclear. By heating the mixture before use, a salt like compound is produced which is particularly efficacious. In an example, di-n-propylnaphthalene sulpho acid is heated with technical pyridine bases. Wetting agents specified in other examples contain the following ingredients, besides water :-(a) n-propylnaphthalenesulpho acid and a mixture of dimethyl pyridines; (b) di-iso-butylnaphthalenesulpho acid and a mixture of alkylated pyridines. and quinolines obtained by distilling bone oil; (c) iso-propyltetrahydronaphthalenesulpho acid and tetrahydroquinoline. Mono- and di-iso-propyl- and mono- and di-n-butylnaphthalenesulpho acids, and hydrogenated heterocyclic bases are also mentioned. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of heterocyclic compounds in conjunction with aromatic sulpho acids, including hydroxy-, chlor-, and amino-sulpho acids, e.g. sulphonic acids of naphthols, chlornaphthols, naphthylamines, and chlornaphthalenes. This subject-matter does not appear in the Specification as accepted.
Patent GB-168248-A (GB)
Title: Injectors or syringes for medical and hygienic purposes
IPC: A61M3/02
Filed: 1920-08-26
Abstract: 168,248. Serra, J. D. Aug. 26, 1920. Syringes and like appliances.- In a syringe of the type in which a liquid or powder to be injected is drawn up through a nozzle into an intermediate chamber and is expelled through the same nozzle by the compression and subsequent release of a rubber or similar bulb, the nozzle C is divided by a partition G into two parts, one of which, F, communicates directly with the intermediate chamber A, the other, F<1>, communicating through an exit tube H with the external atmosphere, thus providing an uninterrupted passage for the withdrawal of fluid which has been expelled from the chamber A and has been injected into the body cavity at the nozzle lip C.
Patent GB-622102-A (GB)
Title: Improvements in air - cored inductors
IPC: H01F17/02
Filed: 1945-09-25
Abstract: 622,102. Inductances. GENERAL ELECTRIC CO., Ltd., and BEAUFOY, R. Sept. 25, 1945, No. 24842. [Class 38 (ii)] An air cored inductor comprises four cylindrical coils 1, 2, 3, 4 mounted with the axes of each adjacent pair perpendicular to each other, the four coils being disposed substantially symmetrically round an axis 9 perpendicular to the axes 5, 6, 7, 8 of the coils, as shown. The coils may be completely enclosed in a screening box 12 with its walls substantially parallel to lines joining the outermost points on the coils, which have their axes all in the same plane. Coils 2, 3 are mounted on a block 26 for movement relative to coils 1, 4, upon rotation of a screw 34. Screws 30, 31 lock the block 26 in position.
Patent GB-449594-A (GB)
Title: Improvements in the production of grey pig iron with low silicon content
IPC: C21C1/00
Filed: 1935-09-07
Abstract: In the production of grey pig iron with a silicon content insufficient for ensuring a graphitic structure, pig iron containing only part of the desired silicon content, e.g. 0,2 per cent, is produced in the blast furnace and after it is run off, silicon, e.g. in form of ferrosilicon, is added so that the final silicon content of the pig iron is under 1 per cent and preferably does not exceed 0,6 per cent.
Patent GB-462330-A (GB)
Title: Improvements in or relating to television picture reproducing apparatus
IPC: H04N3/12
Filed: 1935-09-07
Abstract: 462,330. Monogrammic signs.. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEMP, R. J. Sept. 7, 1935, No. 24972. [Class 118 (ii)] [Also in Group XL] The image produced on the screen 2 of a cathode-ray tube A of a television receiver is projected optically by means of a suitable lens system B on to a screen C consisting of a bank of photo-electric cell elements 3, one element 3 being provided corresponding to every picture point to be reproduced. Each element 3 is connected to control one of a corresponding number of light sources 4 composing a further screen D. Each light source preferably consists of a simplified form of cathode-ray tube of small size, Fig. 2, having a fluorescent screen 5 on to substantially the whole area of which a beam 6 of electrons is directed from a cathode 7 through a controlling cylinder 9 and apertured anode 8. Each tube is controlled by the corresponding cell 3 which is in series with a suitable bias source 10 between the cathode 7 and cylinder 9. The cell 3 may be in the form of individual vacuum tube elements or of copper oxide cells.
Patent GB-1317268-A (GB)
Title: Wire insert for reinforced rubber or plastics components
IPC: B60C9/00
Filed: 1970-05-22
Abstract: 1317268 Woven wire fabric METZELER AG 22 May 1970 [23 May 1969] 25008/70 Heading D1K A woven fabric for reinforcing rubber or plastics material comprises wire wefts 1, and wire warps 2 in the centre of the fabric, and in which the intersections are fixed by plastics material. The wefts may be sheathed in plastics into which the warps cut during weaving; or the intersections may be joined by plastics. Auxiliary warps 3 of thinner wire or plastics strips may be provided in the outer regions. The sheathing may have indentations on one side where the fabric is to be bent into U shape.
Patent GB-699353-A (GB)
Title: Improvements in or relating to amplitude modulated push-pull carrier wave transmitters
Inventor: BARTLETT HUGH FREDERICK
IPC: H03C1/20
Filed: 1950-10-13
Abstract: 699,353. Valve modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 4, 1951 [Oct. 13, 1950], No. 25059/50. Class 40 (v). An anode-modulated push-pull high-frequency stage with Class B modulator comprises a centre-tapped tuned circuit TC, C4, C5 connected by blocking condensers C1, C2 to the anodes of the push-pull valves V3, V4 and with centre-tapped connection as shown to the cathodes of the valves through a condenser C3 shunted by a leak resistor R. If C3, since it carries only the second harmonic of the carrier oscillation, is made small compared with C1 and C2, the shunting effect of C1, C2 across the modulation transformer producing distortion at high audio frequencies is reduced, a low-pass filter between the modulator and anodes of valves V3, V4 is unnecessary, and since audio frequency voltage arises mainly across C3, the voltage rating of C1, C2 can be reduced.