baber/WOPTO huggingface dataset:
Patent GB-714786-A (GB)
Title: Solid fuel stoves
Inventor: PROTHERO DAVID RHYS
IPC: F24B7/00
Filed: 1952-02-15
Abstract: 714,786. Heating air. RADIATION, Ltd. Jan. 12, 1953 [Feb. 15, 1952], No. 4067/52. Class 64(3) [Also in Group XI] The heat of the combustion products of a closed solid fuel stove having an oven surrounded by air passages at the top, bottom and two opposite sides is utilised in a heat-exchanger to provide hot air for room warming. Combustion products are taken from near the grate by a flue b at one side of the fire box a through a top flue e to an uptake g. Cold air supplied by a fan j through a passage i flows downwardly through a passage h surrounding the flue uptake g to an outlet pipe for room-warming. A thermostat controls the speed of fan j to regulate the flow of hot air for room-warming, or a manually or thermostatically controlled damper may be provided. Cold air from passage i is fed to the passage d surrounding the oven, and hot air is taken from the passage d to the room warming outlet. A boiler w is provided at one side of the fire box.. In a modification Fig. 2, (not shown), the air inlet pipe i surrounds the passage h.
Patent GB-432369-A (GB)
Title: Improvements in or connected with combined domestic washing boilers and washing machines
IPC: D06F1/00
Filed: 1934-02-08
Abstract: 432,369. Washing-boilers, RIGBY, T., and RIGBY, A., Britannia Works, Ormond Street, Bury. Feb. 8, 1934, No. 4128. [Class 64 (i)] A domestic washing-boiler c comprises a flanged lid a with strengthening webs a<2>, rim a<1>, and a curved under face a<6> sealing a curved face of a turned-over or beaded rim c<1> of the top of the washing-boiler ; the lid a is bolted or otherwise detachably and adjustably secured to brackets d attached to a surrounding wall of the boiler casing. A door b is hinged at b<1> to the lid a and is pressed against a rim a<5> thereon by a hinged lever e bearing on a wedge f on the door. A wringer may be attached to the flanges, and a loose cover g may be placed over the lid.
Patent GB-1208792-A (GB)
Title: Continuous process for drying acrylonitrile polymer tows
Inventor: SACHSINGER EBERHARD PETER KLAU
IPC: D01F6/18
Filed: 1968-01-26
Abstract: 1,208,792. Continuously drying acrylonitrile polymer tows. CHEMIE FASER KOMBINAT SCHWARZA "WILHELM PIECK" VEB. 26 Jan., 1968, No. 4137/68. Heading B5B. [Also in Division F4] A process for continuously drying never-dried tows of polyacrylonitrile or of acrylonitrile copolymers containing not less than 80% of acrylonitrile units and formed by wet spinning into an aqueous spin bath comprises passing the never-dried tow, washed free from solvent and, if desired, treated with a textile finish, continuously in a crimped or un-crimped state with a moisture content of 80-200%, preferably 110-150%, referred to the dry fibres, and at an average speed of 20 to 80 metres/minute at a low tension through a perforated drum drier, the period of residence of the tow in the drier being 60-200, preferably 90-180, seconds. The temperature at the drier inlet is 100-160‹ C. and at the drier outlet 120-180‹ C. a rectilinearly increasing temperature profile is maintained in the drier. The relative humidity of the atmosphere at the drier inlet is 35-80%, that of the atmosphere in the middle of the drier is 10- 30% and at the drier outlet 22-70%. In an example, a spinning solution consisting of a solution in dimethyl formamide of a copolymer consisting of 93%'by weight acrylonitrile, 6% methyl acrylate and 1% sodium allyl sulphonate, the solvent content of the solution being from 78À5% by weight, is spun into an aqueous precipitation bath containing dimethyl formamide. The filamentary tow thus obtained is stretched, washed free from solvent and fed, with a moisture content of 130%, referred to the dry fibres, into a perforated drum drier at a speed of 60 metres/minute. The drier is provided with 20 separately driven drums. The temperature at the inlet of the drier is 140‹ C. and increases towards the outlet of the drier to 160‹ C. The tow is passed free from tension from drum to drum of the drier. The relative humidities of the atmosphere at the entry, middle and outlet of the drier are 50, 20 and 60% respectively. The throughput time of the tow, which is passed free of tension from drum to drum, is 150 seconds.
Patent GB-668779-A (GB)
Title: Manufacture of new pyrrolidine compounds
IPC: C07D213/74
Filed: 1950-02-17
Abstract: The invention comprises N-[b -(N1-(parachlorobenzyl) - pyridyl - (2) - amino) - ethyl]-pyrrolidine of the formula <FORM:0668779/IV (b)/1> This compound may be obtained by treating N - (p - chlorobenzyl) - pyridyl - (2) - amine or its N-alkali metal derivatives with a b -pyrrolidyl-(N)-ethyl halide, or by reacting N-[b -(N1-pyridyl - (2) - amino) - ethyl] pyrrolidine or its N1-alkali metal derivative with a p-chlorobenzyl halide. Diluents such as alcohol, ethyl acetate, dioxane, benzene, toluene, nitrobenzene, o-dichlorbenzene may be used.  In examples: (1) 2-(p-chlorobenzyl)-aminopyridine is heated with sodamide in benzene and N-(b -chloro-ethyl)-pyrrolidine is added; (2) N-[b  - (N1 - pyridyl - (2) - amino) - ethyl] pyrrolidine is heated with sodamide in toluene and p-chlorobenzyl chloride added. 2-(p-Chlorobenzyl)-aminopyridine is made by heating 2-aminopyridine and p-chlorobenzaldehyde with formic acid.  N - [b  - (N1 - pyridyl - (2) - amino - ethyl] pyrrolidine is made by heating in toluene solution sodium 2-aminopyridine and N-(b -chlorethyl) pyrrolidine.
Patent GB-935216-A (GB)
Title: Improvements in or relating to shuttering for casting concrete or the like, particularly concrete walls
IPC: E04G17/00
Filed: 1961-02-03
Abstract: 935,216. Shuttering for casting concrete walls. A FELDMANN. Feb. 2, 1962 [Feb. 3, 1961], No. 4190/61. Class 20 (2). The joint between the end soldiers 8a, 10a of shuttering panels 7, 9 is sealed by a rubber &c. strip 1 in which is embedded anchoring rods 4 in which are holes threaded for engagement with securing bolts 11 in the soldier 10a. The strip may be used between panels in a straight run of shuttering as well as at a corner as shown. The strip may be anchored by metal mesh embedded therein through which nails are driven.
Patent GB-575273-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16D3/40
Filed: 1944-03-07
Abstract: 575,273. Universal joints. WOOLLEY, S., DAWSON, S., and EYRE, A. J. March 7, 1944, No. 4219. [Class 80 (ii)] In a universal joint of the kind described in Specification 561,166 having bifurcated arms 11, 12 engaging one long and two short pivot pins 13, 14 in a central block 10, the pivot pins are interlocked by providing the long pin 13 with a recess provided by a reduced central portion 13a into .which the ends of the short pins, which are screwed into the block, engage. Instead of being screwed into the block, the short pins may have end recesses 14b, Fig. 6, which on application of pressure will enable the ends of the pins to be distorted as at 14c to lock themselves into position. The pins may be finally secured by welding, soldering or brazing through a central hole 10a in the block.
Patent GB-847995-A (GB)
Title: Improvements in or relating to regulators for electrical power supply systems
IPC: H02J7/24
Filed: 1959-02-06
Abstract: 847,995. Automatic voltage-control systems. GENERAL MOTORS CORPORATION. Feb. 6, 1959 [Feb. 21, 1958], No. 4237/59. Class 38 (4). In an automatic voltage-control system for a generator the emitter to collector resistance of a transistor in series with a field winding is varied by means responsive to the output voltage. In an embodiment, Fig. 1, an armature 10 of a direct-current generator is connected to a load 128 via a cut-out 20. A field winding 16 is connected in series with the emitter to collector path of a transistor 28 the base current of which is controlled by a transistor 40. A voltage divider, comprising resistors 60, 64 and 66 is connected between output leads 12, 38. Above a predetermined output voltage a zener diode 54 passes the base current of the transistor 40 so applying a bias to the transistor 28 to increase the effective emitter to collector resistance. A biasing network 32, 34-36 ensures that transistor 28 is either fully conductive or non-conductive so as to keep the heat dissipation of the transistor to a minimum. The reduction in field current causes the output voltage of the generator to fall and the zener diode 54 to become non-conductive so restoring the field current to a maximum value. For an output current above a predetermined value, a relay coil 24 is energized to open contacts 26 and insert an additional resistance 68 in the voltage divider so causing the zener diode to pass current at a lower output voltage. A rectifier 78 suppresses the voltage surge when the transistor 28 becomes non-conductive, and a capacitor 76 applies feedback to the zener diode 54. In another embodiment, Fig. 4, the relay coil 24 and the resistor 68 are replaced by a circuit in which a fraction of the potential difference across a reference zener diode 132 is compared with the potential difference across a resistor 130 carrying the output current, the resultant voltage being applied to the base of a transistor 118 connected in the voltage divider. The transistor 118 is normally fully conductive and at the predetermined output current the emitter to collector resistance is increased to reduce the regulated output voltage of the generator. The zener diode may be replaced by a forward-acting silicon diode, Fig. 5 (not shown), or the transistor 118 controlled by a further transistor responsive to the output current, Fig. 2 (not shown).
Patent GB-855845-A (GB)
Title: Improvements relating to magnet assemblies
Inventor: ROBERTS PETER ALED
IPC: H01F7/02
Filed: 1958-02-10
Abstract: 855,845. Determining physical qualities of materials. FAIREY CO. Ltd. Feb. 4, 1959 [Feb. 10, 1958], No. 4328/58. Class 37 [Also in Group XXXV] In a magnet assembly having opposed pole pieces defining an air gap, e.g. for a nuclear magnetic resonance detector, a part adjacent the air gap continuously rotates 'about one or more axes parallel to the length of the air gap and extending within the pole pieces. As shown, the poles 5, 6 have rotatable faces 17, driven in the same or opposite directions at the same or different speeds by a motor 26 through flexible shafts 27. The upper pole incorporates a movable slipper portion 9. Bonded to each pole face, and insulated from it, is an eddy current disc 28 of copper or the like, while further such discs 30 are held stationary in the air gap 13. The stationary parts of the pole pieces are surrounded at their ends by brass tubes 21, the ends of which are coplaner with the pole faces and between which may be inserted non-metallic slips 24 to accurately set the magnet gap. The flux may be provided either by stacks of annular permanent magnets 4 or electromagnets. Rotation of the pole faces ensures that any irregularities in the flux density will be experienced by each part of a sample material 22, while the eddy current discs have a smoothing effect on such irregularities. In alternative arrangements, not shown, the axes of rotation are not coincident, though parallel, and may be eccentric relative to the pole faces, in which case non-magnetic balancing weights are provided, or the pole faces may remain stationary while eddy current discs rotate. The sample 22 is surrounded by a radio frequency test coil 23 and may be either stationary or slow moving, e.g. a fluid in a pipe.
Patent GB-767305-A (GB)
Title: Improvements in or relating to vacuum packaging
Inventor: SCHOFIELD HUBERT PERCIVAL
IPC: B65B31/06
Filed: 1954-02-15
Abstract: 767,305. Evacuating and seating packages. METAL BOX CO., Ltd. April 29, 1955 [Feb. 15, 1954; Dec. 8, 1954], Nos. 4329/54 and 35491/54. Class 94(1). A filled bag 10, Fig. 1, formed with aligned holes 14 in its side walls, is evacuated and sealed by positioning a slotted cardboard or metal insert 16, Fig. 3, within its mouth portion so that a hole 15 in the insert is aligned with the holes 14, closing the mouth of the bag by a temporary or permanent seal 28a, applying suction to the holes so that air is withdrawn from the bag around the edge of the insert and through the slot 18 and finally isolating the filled portion of the bag from the insert by a transverse seal 33a. An inert gas may be introduced into the bag before the final sealing operation. The insert may remain in the package, in which case it may be printed with advertising matter, or it may form part of the packaging apparatus and be removed after the final sealing operation, the seal 28a being temporarily formed by a clamp. The lower edge 19 of the insert is located by heat-sealed circular areas 17 which are formed with notches 20 to facilitate opening of the package by tearing the seal 33a. Apparatus for evacuating and sealing the bags comprises a continuouslymoving endless band 21, Fig. 6, carrying spaced pegs 27 which engage the holes 14, 15. The transverse seals are formed by co-operating pairs of rollers 29, 28 or 38 and 34, 33 or 37, each roller being embraced by an auxiliary endless belt 30, Fig. 7, which is guided by spring- loaded jockey pulleys 31 and engaged by a spring-loaded pad 32 so as to maintain a low pressure on the sealed areas after they have left the nip of the rollers. Alternatively, sealing may be effected by jaws moved in rectangular or triangular closed paths, see Figs. 11 and 12 (not shown). As each bag leaves the rollers 28, 29 or 34, 37, its associated peg 27 displaces a spring-loaded arm 49, Figs. 8 and 9, which subsequently springs back and displaces a spring- loaded arm 54, 55. The latter normally prevents inward movement of a resilient pivoted arm 42, 43 carrying a hollow suction member 46 connected by a pipe 47 to a vacuum pump, and when displaced allows the arm to spring inwardly so that the member 46 engages over the peg 27 and suction is applied through the holes 14, 15. The arm is moved by the peg about its pivot 44 against the action of a spring 45 until it passes between a spring-loaded guide member 58 and a ramp 62 which disengages the member 46 from the peg. The arm then springs back and is guided by the outside of the member 58 to its original position where it is retained by the arm 55.
Patent GB-969973-A (GB)
Title: Improvements in or relating to devices for operating loom clutches
IPC: D03D51/00
Filed: 1962-02-05
Abstract: 969,973. Controlling clutches; linkwork. RUTI MACHINERY WORKS Ltd. Feb. 5, 1962 [Feb. 3, 1961], No. 4432/62. Headings F2K and F2L. [Also in Division D1] A weaving loom clutch operating mechanism 10 is arranged so that the loom may be automatically stopped upon a weaving defect without disturbing a clutch operating handle 28. To start the loom, the handle 28 is moved from position O to V, to move a toggle 25, 23 past its centre until the member 25 abuts a stop 31 and a lever 19 is pivoted about a pin 20 to push down a rod 13 operating the mechanism 10. Upon a weaving defect occurring a bell crank 42 is automatically pivoted clockwise to raise a rod 41, which releases a catch 34 thus allowing a second toggle 21, 23 to break and the rod 13 to rise to disengage the mechanism 10 without disturbing the handle 28. The handle 28 is movable to a position R to further raise the rod 13 to reverse the loom.
Patent GB-1219761-A (GB)
Title: Electrical resistor compositions
Inventor: HOFFMAN LEWIS CHARLES
IPC: C04B35/00
Filed: 1969-01-27
Abstract: 1,219,761. Glass mixtures; coating with glass. E.I. DU PONT DE NEMOURS & CO. 27 Jan., 1969 [26 Jan., 1968], No. 4519/69. Heading C1M. [Also in Division H1] Electrical resistor material is composed of, by weight: (a) 16-80% of an oxide of formula (b) 15-79% of a finely divided inorganic binder, (c) 1-69% of finely divided gold, (d) 0-10% of one, or a mixture, of the binary oxides V 2 O 5 , Cr 2 O 3 , Mn 2 O 3 , Fe 3 O 4 , Co 3 O 4 , NiO, CuO. (In the above formula M represents one of the metals yttrium, thallium, indium, lead and the rare earth metals with atomic number between 57 and 71, M<SP>1</SP> represents one of the metals platinum, titanium, tin, chromium, rhodium, iridium, antimony, lead and germanium, The material may have an average particle size of between 1 and 20 micron. The binder may be a glass frit composed for example of lead borosilicate, cadmium borosilicate or a similar borosilicate and may be used in conjunction with a glass wetting agent such as bismuth oxide. The material is dispersed, in a ratio of between 1 and 20 parts of resistor composition to 1 part of liquid, in water or an organic liquid, preferably inert. Examples of possible organic liquids are given in the Specification. Volatile liquids or thermofluid waxes &c. may be used. The coating composition thus formed is applied using a screen stencil technique to a ceramic (e.g. alumina) body and fired to form a stable resistor.
Patent GB-537353-A (GB)
Title: Improvements in or relating to electric lamps for use with rafts, life-jackets, buoys and other buoyant marine life-saving apparatus
IPC: H01M6/44
Filed: 1940-03-12
Abstract: 537,353. Electric battery lamps for life buoys. DOUBLE, A. H. March 12, 1940, No. 4579. [Class 39 (ii)] [Also in Groups XXXVII and XXXVIII] Electric battery lamps for use with life-jackets, buoys and other life-saving apparatus comprise a battery container. on which the lamp 6 and glass cover 4 are mounted and a screwed-in extension 15 containing a float 34 which, on immersion of the casing, floats upwards to make contact between the extension and contact 39 in connection with the battery. The casing is mounted at a point above its centre of gravity in a bearing 26 which ensures that it will assume a vertical position with the lamp uppermost. Holes 17, 18 permit the entry of water. The float carries a pin contact 35 having a pigtail connection to the casing; when raised by the incoming water the contact engages the fixed contact 39 which is connected with the battery through a blob of mercury 41, a connection which is effective only when the casing is in the vertical position.
Patent GB-234421-A (GB)
Title: Improvements relating to coal or other tongs
IPC: F24B15/10
Filed: 1925-02-20
Abstract: 234,421. Adshead, T. W. Feb. 20, 1925. Tongs. - In coal or other tongs comprising handles 1 united by a bow spring 2 and connected to a pair of pivoted - together bell-crank levers 4 with gripping jaws 9, a coiled compression spring 10 is disposed between the handles to assist in moving the jaws together. Inwardly projecting lugs 11 receive the ends of the spring 10.
Patent GB-1531951-A (GB)
Title: Keyhole-less electronic lock
IPC: G07C9/00
Filed: 1977-02-04
Abstract: 1531951 Inductively coupled lock EASTERN CO [trading as ILLINOIS LOCK CO] 4 Feb 1977 04679/77 Heading E2A An inductively coupled electronic lock system wherein a key unit receives binary multiple bit data and generates a binary frequency modulated carrier which is input to a transmitter inductor. A lock unit of the system has an inductive pick-up which compares the secured sequence of binary signals with a predetermined sequence of binary signals so that upon a proper correspondence a motor opens the lock.
Patent GB-1183631-A (GB)
Title: Analysis Apparatus and Method.
IPC: G01N35/08
Filed: 1967-02-01
Abstract: 1,183,631. Analysing liquid samples TECHNICON CORP. 1 Feb., 1967 [23 Feb., 1966; 13 Oct., 1966], No. 4783/67. Heading B1X. [Also in Division G2] A process for analysing a plurality of sample liquids comprises transmitting the samples through a conduit as a flowing stream of successive samples at a constant volumetric rate of flow to an analysis means, for example a colorimeter or flame photometer, and analysing at least part of each sample in the stream at the analysis means. The conduit, which may comprise a flat coil 342 of flexible tubing (Fig. 13) or a U-tube 472-408-470 (Fig. 17), has an adjustable volume for controlling the arrival of each successive sample at the analysis means. In the embodiment of Fig. 13, coil 342 can be compressed between plates 332, 336 by operating handle 366 to advance plate 352 and ball bearing 368 against plate 336, so reducing the internal volume of the coil and hence the flow time of the sample stream through the coil. In the embodiment of Fig. 17, the ends of the curved part 408 of the U-tube are slidable within tubes 404, 406, to alter the effective length of the U-tube. The adjustable volume conduit or phaser is used in apparatus (Fig. 11 not shown) in which a flowing sample stream is divided into a plurality of quotient streams, each quotient stream containing an aliquot of each sample, each quotient stream is analysed for a single characteristic and phasers in all but one of the quotient stream flow paths are adjusted so that the analytical results for a single sample arrive at a recorder in predetermined order and at their peak values (see also Specification 1183632).
Patent GB-626744-A (GB)
Title: Case or housing incorporating a device for pointing pencil leads
IPC: B43L23/00
Filed: 1947-02-19
Abstract: 626,744. Pencil sharpeners. STEINER, P., and THURNHEER, J. Feb. 19, 1947, Nos. 4867 and 4868. Convention dates, Feb. 20, 1946 and June 21, 1946. [Class 146 (iii)]  A pencil-sharpening device incorporated in a housing comprises at least one rotatable funnel-type sleeve for a lead holder or propelling pencil, a mechanism for simultaneous rotation of the sleeve and of a grinding member, means for pressing the leads elastically against the grinding member and means for limiting the extent to which the lead is pressed so that the process of grinding may be automatically interrupted as soon as the lead is pointed. The funnel-type sleeve 57 is accommodated in a bush 64 which is mounted by means of a spherical boss 65 in a bore in the housing 41 and can be pivoted on bolts 66. A spring 67 presses the bush 64 so that the lead 69 is pressed against the grinding wheel 61 and a screw 68 acts as a stop to limit the pivotal movement of the bush. A plate 44 separates the wheel 61 from the operating mechanism and the dust collects in the removable bottom 42 of the housing. A stop 70 is provided for adjusting the length of the lead so that it bears against the wheel 61. The sleeve 57 and wheel 61 are rotated simultaneously by means of a gear wheel 48 which engages a toothed rim on the sleeve 57 and a gear wheel 47 on the axle 46 of a fly wheel 59 to which the grinding wheel is secured. The wheel 48 is rotated in one direction only by a pawl 56 thereon engaging a ratchet 55 on a sleeve 50 freely rotatable on the axle 49. The sleeve 50 has a gear wheel 51 actuated by a hollow-toothed rack 52 which is forced out of the housing 41 by a compression spring 53 in its hollow bore and is pressed back into the housing by a stud 54, by hand. For sharpening compass leads on one side only, the funnel-type sleeve 75 which is designed to accommodate part of the compass leg, is rotated through a maximum of 120 degrees by means of a catch 76 which is limited by stops 77, 78 fastened to the toothed rack 52, the grinding wheel being internally tapered as shown. In a modification in which compass leads are sharpened on the outside of a solid grinding wheel, the screw stop is on the outside of the housing and the spring is situated below the pivot point of the bush 64a. In a modification showing only one propelling pencil to be sharpened on a solid grinding wheel, the driving mechanism comprises a winding drum with a pulling cord to tension a spiral spring in the drum, or a pulling cord may be so connected to the drum that alternate pulls on the two ends of the cord rotates the drum, or an electric motor may be used. The Specification as open to inspection under Sect. 91 comprises also a modification in which the pencil is inserted into a non-inclinable sleeve and is pressed against the grinding wheel by its own weight. This subject-matter does not appear in the Specification as accepted.