baber/WOPTO huggingface dataset:
Patent GB-1345033-A (GB)
Title: Low viscosity polyepoxide embedding medium
IPC: C08G59/42
Filed: 1971-01-11
Abstract: 1345033 Embedding specimens UNIVERSITY OF CALIFORNIA REGENTS OF 11 Jan 1971 [12 Jan 1970] 1197/71 Heading G2J [Also in Division C3] Tissue specimens are prepared for microscopic examination by first dehydrating and then infusing the specimens with a composition having a viscosity of 60 cp. at 25‹C comprising a cycloaliphatic diepoxide, a diglycidyl ether of polypropylene glycol, an anhydride hardener and an alkylalkanolamine accelerator. The specimens are embedded in the medium which is then cross-linked. A typical composition comprises vinylcyclohexene dioxide, nonenylsuccinic anhydride and dimethylaminoethanol.
Patent GB-1189285-A (GB)
Title: Improvements in or relating to Vehicle Guidance Systems
IPC: G08G1/00
Filed: 1969-01-09
Abstract: 1,189,285. Train control systems. AMERICAN CHAIN & CABLE CO. Inc. 9 Jan., 1969 [31 Jan., 1968], No. 1289/69. Heading B7N. [Also in Division H4] The invention provides a guidance system for unmanned self-propelled vehicles for producing a path control signal to guide a vehicle past a particular decision point at diverging guide paths towards a predetermined station and for producing a stop signal at this station. As described, the guide path is defined by conductors buried in the floor and energized at a frequency of, for example, 2KHZ. Each vehicle is provided with a sensor which controls the steering and in addition is provided with a selectively energizable sensing device for reading floor code signals placed in predetermined positions along the vehicle path and comparing them with signals stored on the vehicle which define the required route and stopping places. The floor code signals are provided by combinations of permanent magnets which are arranged to produce binary coded signals by co-operating with coils or reed switches 34 on the vehicle Fig. 4. Initially, one or more stations have been pre-selected by operation of a selector panel 29 on the vehicle and coded signals detected by the vehicle are stored at 41 and converted to a decimal signal at 42 which is either a station number or a decision point number. If the code sensed is a decision point number, a decision point comparator 44 comprising a plurality of matrix arrays of gating circuits, Figs. 21 to 25 (not shown), compares that number with the station number to which the vehicle is being directed and produces a control signal to guide the vehicle in the appropriate path. If the code being read is a station code and is the same as the assigned station number as determined by a comparator 43, a signal is produced to stop the vehicle. The selector 29, includes an assigned position memory 46 which has five positions sequenced by a timing circuit to interconnect successively each of the stations selected and stored at 47 to the guidance system so that the vehicle will have only one destination at a time. A home comparator 48 and memory 49 are operable after the vehicle has passed to all of its assigned stations to return the vehicle to its home station. Circiutry may be provided, Fig. 36 (not shown), to uncouple trailers automatically at predetermined positions. Automatic operation of a horn signal at predetermined points also may be provided.
Patent GB-989464-A (GB)
Title: Filtering devices for smokes, tobacco smoke and noxious gases
IPC: A24D3/04
Filed: 1962-01-15
Abstract: 989,464. Tobacco smoke filters. G. ROTHSTEIN. Jan 15, 1962 [Jan. 2, 1962], No. 1424/62. Headings A2C and A2M. A filter for incorporation in a cigarette mouthpiece or for use in a cigarette holder or tobacco pipe comprises a first filter chamber 1 divided from a second chamber 2 by a partition 3 in which an orifice 4 is provided greatly off-centre with respect to the longitudinal axis of the filter. The partition may be flat and either inclined to or at right angles to the longitudinal axis or it may be conical the orifice being then located at the apex of the cone which is arranged adjacent the inner circumference of the filter. The orifice may have a variety of cross-sectional shapes, e.g. polygonal, circular, rectlinear or curved slit. Specification 989,465 is referred to.
Patent GB-1459187-A (GB)
Title: Machine tools
IPC: B23C1/18
Filed: 1973-01-10
Abstract: 1459187 Copy-milling lathes; speed controlling CENTRAX Ltd 16 Jan 1974 [10 Jan 1973] 1425/73 Headings B3T B3K and B3B In a machine tool in which a workpiece rotates relative to a tool as in the making of blades for turbines or compressors a rotary mounting 14, 16 is provided for the workpiece and a tool carrier 32 is movable in a direction parallel to the axis of rotation of the mounting and means is provided for adjusting the speed of rotation of the mounting in dependence on both the angular position, relative to the tool carrier of the mounting about its axis of rotation and on the position of the tool carrier relative to the mounting in a direction parallel to the axis. In the embodiment described a lathe is provided with two work spindles 14, 16 located parallel to one another and a template spindle 18 parallel therewith. The tool carrier 32 is mounted on a cross slide 30 on a saddle 28 slidable longitudinally of the lathe bed 10 by way of motor driven feed screws 44, 46. The operation of the cross slide is controlled by the template 20 and tracer 40, 42, unit which determines the contour of the turbine blade formed on the workpiece in spindles 14, 16. A speed control cam 498 is coupled for simultaneous rotation with the template spindle 18 and parallel thereto and which actuates a sensor 500 which controls, by way of an electrohydraulic system, the rotation of the workpieces in relation to the longitudinal position of the tool carrier and the angular position of rotation of the workpiece turbine blade. The tool carrier carries two rotary cutters 38 mounted for rotation about parallel axes one above the other for engagement with the respectively mounted workpieces. A circuit diagram for the operation of the lathe is described with reference to Fig. 4 (not shown).
Patent GB-574293-A (GB)
Title: Impellers for use on ships and on aeroplanes
IPC: B63H1/04
Filed: 1944-01-27
Abstract: 574,293. Propellers. PENMAN, H. HUTTON-. Jan. 27, 1944, No. 1537. [Class 114] A propeller comprises six flat rectangular blades d pitched at an angle of 75 degrees and fitted with end flanges a bolted to corresponding flanges b on a boss e which has a central aperture c to receive the driving shaft.
Patent GB-1268301-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: PETRIE JAMES ALEXANDER
IPC: F01D25/12
Filed: 1970-01-13
Abstract: 1,268,301. Gas turbine engines; cooling. ROLLS-ROYCE Ltd. Jan. 13, 1970, No.1564/70. Heading F1G. A gas turbine engine comprises stator structure and a bladed rotor, sealing means being disposed therebetween, the stator structure defining at least two flow paths for the passage of cooling fluid, one of the flow paths being arranged to supply cooling fluid to the bladed rotor. The engine shown comprises inlet guide vanes 10 supported at their inner ends by support ring 12 having flanges 16, 18 and at their outer ends by support ring 14, the inner support ring 12 being connected to a structural member 30. The guide vanes provide two flow paths 36, 38 for flow of cooling air, air flowing through the path 36 discharging through openings formed at the leading edges of the guide vanes. The engine comprises also a rotor 48 having blades 50 which carry shrouding 52. The rotor is formed with a seal element 54 which co-operates with a seal element 22 on the flange 18 of the support ring 12. The rotor also carries seal elements 56, 58 which co-operate with seal elements 32, 24 carried by the structural member 30 and the support ring 12 respectively. Openings 28 are formed in the support ring 12 and are provided with swirl vanes 26. Hollow spokes 34 are disposed between the openings 28. Cooling air is supplied through the openings 28 and swirl vanes 26 into the chamber 60 on to the rotor 48, this constituting one flow path, the air passing through the seal 24, 58 into a chamber 62, also through the seal 54, 22, through openings 64 into the second flow path. Cooling air is also supplied through the seal 32, 56 into the chamber 62, the air then flowing through the hollow spokes 34 and through the passages 38 in the guide vanes 10 into the chamber 42. The air then flows through openings 44 to chamber 46, through swirl vanes 40 on to the shroud elements 52. This constitutes the second flow path.
Patent GB-371404-A (GB)
Title: Improvements in or relating to electrical terminal connectors
Filed: 1931-01-16
Abstract: 371,404. Binding-posts ; plug couplings. COOK, C. R., Chesworth, Horsham, Sussex. Jan. 16, 1931, No. 1580. [Class 38 (i).] A contact member with a shank having an eye or recess formed therein is fitted with a slide that is moved along the shank without relative rotation, by the action of a rotatable casing that encloses the eye and the slide, to clamp a wire that is passed through the eye. The contact 14, Fig. 1, may be formed by bending D-section wire, the shank being made with an eye 12 and surrounded by a slotted sleeve 15 moved by a casing 16 to clamp the wire 13. The eye may be more elongated and the slide guided within it by longitudinal slots. Alternatively the recess may be formed by a hook 41, Fig. 4, the slide 15 having one slot to receive the shank 21. The wire itself may prevent rotation of the slide by lying in a transverse slot therein at each side of a small aperture constituting the eye. The slide may take the form of a disc or washer guided in or around the eye, and the screw casing may be in the form of a sleeve screwing on the shank. Specification 371,418 is referred to. The Provisional Specification describes a modification wherein relative endwise movement between two co-operating parts brings one of them into clamping engagement with the lead passed through the eye.
Patent GB-818541-A (GB)
Title: Improvements in and relating to vacuum flasks
IPC: A47J41/02
Filed: 1955-01-19
Abstract: 818,541. Vacuum - jacketed vessels. SMITH, L. LESLIE-. Jan. 19, 1956 [Jan. 19, 1955], No. 1600/55. Class 64(2) [Also in Group XVII] A flexible annular member 1, e.g. of polyethylene, forming a pouring lip 5 sealing on the lip of a vacuum - jacketed flask 3, is provided with a recess or groove 7 for interlocking with a downturned flange 9 at the mouth of the canister shoulder-member 8 of the flask. The Provisional Specification describes also an annular member of which the upper portion has a slight inward tapering from a middle region to accommodate a range of flask lengths.
Patent GB-238772-A (GB)
Title: Improvements in liquid measuring and dispensing devices
IPC: B67D7/16
Filed: 1925-01-19
Abstract: 238,772. Gaulke, J. E. Jan. 19, 1925. Dispensing liquids.-In apparatus for dispensing liquids such as petrol, of the kind wherein a measuring chamber 2 filled from a pipe 8 is discharbed down to a selected level by means of a vertical adjustable outflow pipe 10 communicating with the delivery hose 19 through a valve 20, mechanism is provided for interlocking the discharge handle 26 and the setting and indicating means so that one is locked while the other is being manipulated. A key lock is also employed to prevent all use of the apparatus. The delivery valve 20 is opened by turning the handle 26 connected by a hub 27 with a cam 25 engaging a push-rod 24 serving to open the valve by rocking a lever 21. A siphon effect is prevented by an air vent 22 and non-return valve 23. The outflow pipe 10 surrounds the fixed overflow pipe 6 and is raised and lowered by rack 13 and a pinion 37 secured on a spindle 35 carrying a setting- wheel 33. Thus by turning this wheel the pipe 10 can be raised or lowered according to the quantity required to be delivered and at the same time by means of a second pinion 36 an indicating disc 43 is rotated to expose through a window 49 a corresponding number on one of several adjustably mounted plates 46. These plates, are notched to co-operate with a positioning spring- plunger 52 and a plunger 53 controlled by a lever 62 having a screw bearing on a spring-controlled rod 65 the lower end of which co-operates with the notched periphery 31 of a sector-like extension of the discharge lever 26. This mechanism ensures that (1) the indicating-disc cannot be turned from one position to another unless the discharge lever is in normal position with its notch 32 beneath the rod 65 and (2) the discharge lever cannot be rotated from normal unless the indicating-disc is at one of its functioning positions. In the rest position the disc is set by the wheel so that it does not present a notch to plunger 53 and consequently the discharge lever cannot be moved. In order to lock the entire mechanism in this position the bolt 72 of a lock 70 may be shot into a notch 74 of the setting- wheel and as there is no notch of the indicating disc below the plunger 53 the discharge lever is also locked. In the position of rest the measuring member is emptied by the liquid draining away through the sump 75 the depending cylinder 9 and a pipe 14 communicating with the drain channel through an outlet valve opened by the lower end of the rack 13 when in its lowest position.
Patent GB-890070-A (GB)
Title: An improved method of detecting defects in elongated metallic objects
Inventor: TERRY DENNIS
IPC: G01N27/90
Filed: 1960-01-18
Abstract: 890,070. Detecting flaws in metal. ACCLES & POLLOCK Ltd. Jan. 12, 1961 [Jan. 18, 1960], No. 1695/60. Class 37. A method includes the step of generating eddy currents in the metal by means of an alternating current in a toroidal winding encircling the sample. An insulated conductor 5 having an insulated conductor 4 wound helically upon it is wound upon a former 6 so that the radius of curvature of conductor 5 is slightly greater than a metallic tube to be tested. Both windings may be fed with A.C., the former generating circumferential eddy currents and the latter generating currents in a generally longitudinal direction or they may be energized alternately from the same A.C. source. The results may be displayed on an oscillograph. Simultaneously applied alternating currents may be 90 degrees out of phase to produce a rotating magnetic field.
Patent GB-328279-A (GB)
Title: Improvements in or relating to electrical inductances
IPC: H01F21/04
Filed: 1929-01-17
Abstract: 328,279. London Electric Wire Co., & Smiths, Ltd., and Boyd, W. F. Jan. 17,1929. Inductances.-An inductance of the kind comprising two concentric or coaxial coils having similar electric and magnetic dimensions, and wherein the coils are astatically connected in parallel for short wave working and in series for long wave working, is provided with a third winding 1 mounted between the range-changing coils 2, 3, the middle winding being a primary and the inner and outer windings secondaries. The winding 1 may be mounted on a former 4 which is split in order to embrace the winding 3, or it may be wound on spacing strips, or on insulating tape 7.
Patent GB-138085-A (GB)
Title: Improvements in variable speed change gears for automobile vehicles and the like
IPC: F16H63/46
Filed: 1920-01-20
Abstract: 138,085. Zahnradfabrik Ges., and Soden-Fraunhofen, Count A. von. Oct. 4, 1915, [Convention date]. Variable-speed gearing in which the next gear is preselected to come into action on the next operation of the main clutch lever has said lever directly connected to striking rods to displace these rods against springs into inoperative position on the first movement of said lever. All except one of these rods is looked in this position. On the second or back movement of this lever, this unlocked rod is allowed to move back into operative position. The gearing comprises a main or driving-shaft B, a driven shaft K in alinement therewith, a countershaft C, and a reversing-shaft D, all the speed changes being brought into engagement by gears sliding on the shafts B, C, D in the same direction, towards the right of Figs. 1 and 2. Spring striking-rods 0' - - 0<4>, Or are adapted to be engaged by a cross. bar i<3> on a pedal-lever J so that these rods are moved together to the left when the main clutch is disengaged. A separate locking-means, such as R<2>, R<3>, R<4>, is provided for each rod under the control of a press-button or like electric or mechanical selecting-box V, which may be on the steering-wheel of a motor-vehicle. Such means R<3>, Fig. 3, comprises a bolt Q<3> normally thrust by a spring S<3> into engagement with a notch 0<5> in a rod 0<3>. The rod 0<3> is unlocked to bring a speed in action when it moves to position II, Fig. 1. The bolt Q<3> is connected by a spring T<3> and bowden wire U<3> to one of a set of pivoted levers' \\‹, W<3> &c.,Fig. 6, in the box V. Each lever can be actuated by depressing a spring button X‹ - - X<4>. These buttons are fitted with collars x‹ &c., all of which are engaged by a single locking and retaining band spring Z. The lever W has no wire connexion, and when button X‹is depressed, the collar x‹acts to free the other buttons so that any bolt such as Q<3> out of action tends to be replaced by its spring S<3>. Actuation of the pedal J pulls the rod 0<3> to the left of Fig. 3, allowing any bolt Q<3> to drop past an overhanging catch o<6>. Release of the pedal J locks all the rods. When a change of speed is desired, one of the buttons X‹ &c. is depressed, becoming locked in the box, the previously locked button being released. The corresponding bolt is tending to disengage its rod, while the bolt released by the spring Z is tending to drop into locking position. Operation of the pedal J at any subsequent time allows these bolts to pass the catches o<6>. Release of the pedal allows the freed rod to pass to the right and slide the gears for the selected speed into mesh.
Patent GB-1339412-A (GB)
Title: Data transmission systems
IPC: H04L12/403
Filed: 1972-01-14
Abstract: 1339412 Digital transmission; party line systems SIEMENS AG 14 Jan 1972 [21 April 1971] 1799/72 Heading H4P A telegraphic transmitter is connected over a common link, e.g. a radio link, to a number of telegraphic receivers which are selectively addressed by address-signals each comprising a predetermined sequence of characters, a receiver only responding if it receives the address characters in the correct sequence and receives its address-signal at least a predetermined plurality of times within a predetermined time period. Receivers may be addressed singly, in groups or all simultaneously. In the receiver shown in Fig. 3 a character arriving in 5-bit start/stop code with parity checking enters register 10 (stop bits removed) from terminal 13. Pulse generator 12 generates a pulse for each character received. Circuit 11 detects the start of call signal i.e. carriage return character, hence whose output 14 via gate 15 enables counter 16 to be clocked on by pulses T. If an unbroken sequence of six such characters is received, counter 16 via its output 17 switches bi-stable 22 to inhibit AND gate 25 thereby breaking the connection between the character input 13 and the input 16 to the telegraphic printer. Inverter 18 and gate 19 resets counter 16 if the sequence of fixed characters is broken. Logic 32a and 32b via switching stage 33 examines the true and inverted form of the character in register 10 and issues a signal on line 34a, 35a, 36a, 34b, 35b, 36b on detecting the characters A, L, Bu, S, E and C. Counter 37a responds to the all stations address sequence A, L, L, Bu and counter 37b responds to the group of address signals S, E, Bu, Bu and the unique address signal S, E, C, Bu to supply a signal on respective outputs 38a, 38b to clock on counter 15. After three address signals received within a period of 48 character pulses T sensed by counter 52 bi-stable 22 is reset by counter 50 to open gate 28 and allow printing to begin. Counter 52 on reaching a count of 48 resets counter 50, and is itself reset upon the next signal sent to counter 50 from output 38a or 38b. Switching stage 33 chooses the combination of characters to which a particular station responds. The logic 32a and 32b may be combined into a single unit (Fig. 4, not shown). The length of the time period in which character signals may be received as determined by counter 52 is said to be adjustable in dependence upon the interference on the line as measured by a distortion of the start or stop signals recovered from the received character signals. Also the number of times the transmitter sends the call address signals can also be made dependent upon the interference level.
Patent GB-381803-A (GB)
Title: Improvements in or relating to the actuating members of electrodynamic loudspeakers,microphones and the like and the method of manufacturing such members
IPC: H04R9/04
Filed: 1932-01-20
Abstract: 381,803. Sound reproducing and transmitting devices. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Jan. 20, 1932, No. 1801. Convention date, March 7, 1931. [Class 40 (iv).] In an electrodynamic loud-speaker, microphone, or the like, comprising a moving coil for the audio-frequency currents, the coil carrier is formed by one or more layers of non- rigid material such as fabric, paper, &c. which, together with the coil, after the latter is completed, is artificially stiffened. The coil supporting material may enclose the windings of the coil wholly or partially, or it may be embedded between layers of the wire windings, and the arrangement is such that whilst the carrier has relatively little weight, it prevents displacement of the windings. Figs. 1, 2, and 3 illustrate one method of making a coil unit, in which a piece of silk 2, having strips 3 at one end, is first wound on a mandrel 1, and a few layers 4, 5 of wire are wound over the greater part of the piece 2. The strips 3 are folded back over the coil after the outermost layer 8 has been partly formed, and the winding is completed in such a manner that only the central portions of the strips are covered by the outer layer of wire. The extremities of the strips are secured by paper layers 12 wound over the end portion of the piece 2 that is not covered by wire. During this final winding, electrodes 14 are laid between the layers 12 and are welded at the ends of the coil. When the winding is complete, the whole unit is impregnated whilst still on the mandrel, with a lacquer or resin which is then hardened by backing. The mandrel is then withdrawn, one or more layers of oiled paper preferably having been inserted between the silk and the mandrel to facilitate this. In a similar construction, that part of the silk which is not covered by the winding lies over a small transverselycorrugated tube having an exposed conical flange, and instead of the paper layers 12 (Fig. 2) layers of thread are wound over the grooved tube and the intervening silk, so as to clamp the free ends of the silk strips. Further constructions are described, in which a layer of fabric such as silk is provided not at the inner surface of the coil but between two or more layers of wire wound on each side of the fabric. One such modification is shown in Fig. 6, 31 being a layer of silk interposed between only two layers 30 of wire. The silk is secured by thread 34 to a corrugated aluminium tube 35 having a conical flange (as in a construction previously described), which flange serves for attachment of the unit to a conical diaphragm, by electric welding or otherwise. During the manufacture, one' or more layers 29 of very thin oiled paper are first wound on the mandrel 1, and each layer of wire is coated with lacquer or artificial resin, subsequently hardened by heat. The lacquer forms a thickened smooth edge 32.