baber/WOPTO huggingface dataset:
Patent GB-868358-A (GB)
Title: Improvements in or relating to transistor circuits
IPC: H03K3/281
Filed: 1958-04-18
Abstract: 868,358. Transistor monostable-state circuits. WESTERN ELECTRIC CO. Inc. April 18, 1958 [April 23, 1957], No. 12374/58. Class 40(6) A monostable-state circuit comprises two transistors of opposite conductivity types, the base electrodes of each being connected to the collector electrode of theother, whereby the circuit has a low current and a high current conductivity state, to which latter state it may be triggered by the application of a suitably poled pulse to the emitter circuit of one transistor, the circuit being so arranged that the conditions tending to maintain the circuit in its high-current state decay with the passage of time so that after a predetermined interval from the application of the triggering pulse the circuit reverts to its lowcurrent state. In the circuit shown in Fig. 2 the transistors 10, 11 and associated impedances 19<SP>1</SP>, 20 constitute a trigger pair functionally equivalent to a single transistor having a current amplification factor greater than unity, regenerative feed-back being provided by the equivalent base resistor 25. The circuit normally assumes a stable low-current condition; on the application of a positive pulse at the terminal 30 the circuit is triggered to its high-current state, the current to the equivalent emitter electrode 21 being supplied from the capacitor 36 through the diode 33. Capacitor 36 consequently charges negatively until the potential at the equivalent emitter electrode is too negative from the circuit to remain in its high-current state, whereupon it reverts to its low-current state. The impedance network 19<SP>1</SP> includes an inductor whereby its effective impedance is increased during the initial triggering. This results in an increase in the equivalent current amplification factor and so assists the change-over to the high-current state. In Fig. 3 the resistors 42, 43 are chosen so that under steady state conditions the equivalent current-amplification factor is so small that the circuit is effectively stable. On the application of a triggering pulse, however, the capacitor 40 by-passes the resistor 42 so as effectively to increase the equivalent current-amplification factor and provide the circuit temporarily with a high-current state. As steady-state conditions are approached however the high-circuit state can be no longer maintained and the circuit reverts to its low-current condition. Fig. 4 (not shown) illustrates a modification of Fig. 3 in which the resistor 43 is replaced by the parallel combination of a resistor and inductor and the capacitor is omitted from the combination 40, 42. It is stated that the inductive and capacitive components of Figs. 3 and 4 may be utilized in the circuit of Fig. 2. Specifications 753,014 and 856,147 are referred to.
Patent GB-217395-A (GB)
Title: Improvements in and relating to the propulsion of boats
IPC: B63H20/10
Filed: 1923-05-09
Abstract: 217,395. Parietti, G. D. P., (known as Parietti, G. B.). May 9, 1923. Driving arrangements for screw propellers; propelling and steering by screw propellers; propeller shafts, arrangement of.-Motor or hand driving gear installed on the floor of a boat actuates a transverse shaft which is telescopically connected with transmission gear on the gunwales, the screw shaft being suspended over the side of the boat. The motor and transverse shaft may be mounted on a vertically adjustable bedplate. The motor a is supported on a bedplate b preferably adjustable for height by studs s, and its shaft carries flywheel e engaged by a roller d on a transverse shaft c. The shaft may be supported eccentrically in its bearings and have springs which hold the roller up against the disc, or the flywheel may be slidably spring-controlled. The roller is movable axially for effecting speed variation. The shaft c is universally jointed to telescopic connecting shafts h which are universally jointed to the shafts of the gear-boxes r, which are clamped to the gunwales. Power is transmitted through gears m, n to the propeller, the shaft of which may be telescopic as at o. Friction clutches q may be provided in the transmission for steering purposes. The brackets r may be extensible. The engine may be set with its shaft athwartships and provided with telescopic extensions to the gear-boxes or to chain gears thereon. When auxiliary hand actuation of the shaft is contemplated, the necessary clutches are provided.
Patent GB-310290-A (GB)
Title: Improvements in bolting machines
IPC: B07B4/02
Filed: 1928-04-28
Abstract: 310,290. Gesnel, C. A. May 7, 1927, [Convention date]. Divided on 290,162. Fixed sieves. - In apparatus for sifting powdered materials the material is projected against a cylindrical sieve 6, Figs. 1, 2 by a fluid, which may be air or water, issuing from a series of hollow arms 12, and supplied from a pipe 14. The arms 12 may be stationary or rotary and the angle of incidence of the fluid on the screen may be obtained by varying the shape or the speed of rotation. The material is fed to the apparatus by a hopper 15. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention is applicable to the sifting of mineral and organic colouring matters, flour, fecula, dextrines, starch, cocoa, cork-powder, &c. This subject-matter does not appear in the Specification as accepted.
Patent GB-984647-A (GB)
Title: Improvements in and relating to plaster compositions
Inventor: ELLIOTT AUGUSTUS GORDON
IPC: C04B28/14
Filed: 1963-03-29
Abstract: A plaster composition comprises 70-41% of calcium sulphate hemihydrate at least 40% of which is retained on a 200 B.S. screen, 26-50% of whiting and 4-10% of calcium hydroxide.  The composition may also include up to 1% of a cellulose compound which will gelatinize in water, e.g. methyl cellulose and/or up to 1% of a hardener, e.g. glue flour, urea formaldehyde powdered resin or dextrin.
Patent GB-372930-A (GB)
Title: Improvements in and relating to shock absorbers, snubbers, steering stabilisers, andthe like for mechanically propelled road vehicles
IPC: B62D7/22
Filed: 1932-01-29
Abstract: 372,930. Vibration-dampers. KEELEY, C. R., Lodge House, Baynards, Horsham, Sussex. Jan. 29, 1932, No. 12617/31. [Class 108 (iii).] Steering-dampers, shock-absorbers &c. for motor road vehicles, and of the type in which movement is controlled by an inertia member, comprise a casing 10 containing an actuating-arm 19, at one end of which is rotatably mounted a block 17 adapted to slide in a radial slot 18 in an inertia member 14, w hich rotate about a spindle 15, the other end of the arm 19 being rigidily fixed to a spindle 20 rotatably mounted in the casing 10, the movements to be controlled being transmitted to the inertia member 14 either through the casing 10 or the spindle 20. The device is shown as a steering- damper, in which the casing 10 is rigidly fixed, as by a tapered pin 24, to a bracket 11 on the steering head 12 and is adapted to rotate about a king-pin 21, which forms an extension of the spindle 20 and is fixed in the axle boss 22. The inertia member 14 is rotated about the spindle 15 by the steering movements, the pivotal axes being so arranged that the angular movements of the member 14 are greater than those of the steering head, sudden movements of the steering parts being thus damped by the inertia member 14. A coil &c. spring may be interposed between the sliding block 17 and an abutment fixed near the end of the radial slot 18, whereby the parts tend to return to the normal position after each displacement.
Patent GB-1044933-A (GB)
Title: Improved method for the preparation of 1-(1-phenyl-ethyl)-5-[(r) (ar) n-co]-imidazoles and compounds produced thereby
IPC: C07D233/90
Filed: 1965-03-25
Abstract: The invention comprises compounds of formula <FORM:1044933/C2/1> wherein R is a hydrogen atom or a C1-5 alkyl group and Ar is a phenyl group optionally substituted by one or more C1-5 alkyl, C1-5 alkoxy or nitro-groups or halogen atoms, or is a pyridyl group, acid addition salts thereof, and their preparation by reaction of a 1-(1-phenyl-ethyl)imidazole - 5 - carboxylic acid halide with an amine ArRNH.  The compounds of the invention have anti-convulsant and sedative activity.  1 - (1 - Phenylethyl) - imidazole - 5 - carboxylic acid chloride is prepared by reaction of 1-phenylethylamine with ethyl chloroformate to give N-(ethoxycarbonylmethyl) - 1 - phenyl - ethylamine, reacting this with formic acid to give N-formyl-N -(ethoxycarbonylmethyl) - 1 - phenylethylamine, reacting this with sodium and potassium thiocyanate to give 1-(1-phenylethyl)-2-mercapto-5-methoxycarbonylimidazole, reacting this with nitric acid, sodium nitrite and hydrogen chloride to give 1 - (1 - phenylethyl) - 5 - (methoxycarbonyl) -imidazole hydrochloride and converting this to the corresponding acid and acid halide by successive hydrolysis and treatment with thionyl chloride.
Patent GB-808986-A (GB)
Title: Improvements in or relating to clocks or watches
IPC: G04B19/22
Filed: 1956-04-25
Abstract: 808,986. Clocks. SPECKINGER, H. F. A. April 25, 1956 [April 25, 1955], No. 12669/56. Class 139 In a universal clock the minute hand 2, Fig. 1, is rotated by a spring or electrically driven movement 9, Fig. 2, and the hour dial 4 is stepped-on every hour or halfhour by an electric motor 21 the circuit of which is controlled by a periodically closed switch 13, 15. A detent 37 correctly locates the hour dial 4. Every twenty-four hours the indicator 34 is stepped-on to bring the appropriate day symbol into the window 36, Fig. 1. The hour markings 5 are made on pointers which overlie a zone dial 6 divided into time zones denoted by symbol letters A, B, C, &c. The zone dial 6, Fig. 2, may be rotated in any direction by an electric motor-40 to bring any desired zone symbol into alignment with the sixtyminute mark. During such movement of the zone dial 6 the hour dial is rotated therewith by the detent 37. In a modification, Fig. 3, (not shown) the hour dial is rotated from the minute shaft through transfer gearing and the zone dial-may be rotated through gearing actuated by an external knob.
Patent GB-1016889-A (GB)
Title: Shift register
IPC: G11C19/28
Filed: 1963-03-29
Abstract: 1,016,889. Shift registers; counters. RADIO CORPORATION OF AMERICA. March 29, 1963 [April 27, 1962], No. 12669/63. Headings G4A and G4C. [Also in Division H3] A shift register comprises a plurality of cascaded bi-stable circuits, alternate ones of which are data storage circuits, the remaining ones being interstage coupling circuits, a capacitor being connected to the output of each storage circuit and arranged to provide signals to the succeeding and preceding coupling circuits via respective oppositely poled unidirectional conducting means. The shift register may be employed for series-to-parallel and parallel-to-series conversion, and, by connecting the last stage to the first, as a ring counter. Fig. 2 shows three storage circuits and two intermediate coupling circuits, each circuit comprising a bi-stable tunnel diode and transistor combination. In operation, an input " 1 " pulse 56a switches tunnel diode 48a and an associated transistor 40a saturates. The first shift pulse 60 resets tunnel diode 48a and cuts off transistor 40a thereby supplying a positive pulse via capacitor 90a to switch tunnel diode 84a and saturate transistor 80a in the first coupling circuit. The first shift pulse 60 is still present and only when it terminates is the collector voltage of the transistor 80a effective to switch the tunnel diode 48b and saturate the associated transistor 40b in the second storage stage. The voltage drop at the collector of transistor 40b is effective to supply a negative pulse via capacitor 90b and a diode 100a to reset the first coupling circuit by resetting tunnel diode 84a. A further input pulse 56a can now be supplied to the first storage stage and subsequent shift pulses cause the data in the storage circuits to be shifted along as described. Information can be read out in parallel, if desired, by sampling terminals " OUT." A reversible shift register, Fig. 5, is also described, the storage and coupling stages being similar to those of Fig. 2. A flip-flop 144 is set to one of its stable states to provide forward or reverse operation of the shift register by means of enabling pulses applied to gates A1 or A2.
Patent GB-992310-A (GB)
Title: Apparatus for plastifying and extruding thermoplastic material
IPC: B29C48/67
Filed: 1964-03-25
Abstract: 992,310. Extrusion machines. LILON ESTABLISHMENT. March 25, 1964 [March 29, 1963], No. 12672/64. Heading B5A. Apparatus for plastifying and extruding thermoplastic material comprises a screw 20 for plastifying the material and feeding it to a metering pump 22 which passes it to an extrusion die (not shown), and the screw spindle 6 is axially displaceable in response to the pressure of material in the space 23 between the spindle and the pump 22, whereby a piston-like enlargement 18 on the piston controls the flow of material through the apparatus by regulating the admission into a recess 28 in the wall of the housing 1, through which recess 28 the material is fed to the screw 20. The degree regulation may be controlled by the setting of a pivoted flap 34 in the recess 28. The raw material is fed in granular form through a hopper 25 and is stirred by vanes 27 on the spindle 6.
Patent GB-392732-A (GB)
Title: Improvements in lighter-than-air aircraft
IPC: B64B1/62
Filed: 1932-05-04
Abstract: 392,732. Airships. LUFTSCHIFFBAU ZEPPELIN GES. and DœRR, L., 19, Zeppelinstrasse, both in Friedrichshafen, Lake Constance, Germany. May 4, 1932, No. 12796. Convention date, June 15, 1931. Addition to 388,425. [Class 4.] An airship with cells for inflammable gas and non-inflammable lifting gas as described in the parent Specification has the inner cells of substantially cylindrical form with axes in the horizontal plane at right-angles to the axes of the outer cells. A cell W for hydrogen is arranged transversely within a cell H for helium so that the cylindrical walls of the inner cell come close to the flat end walls of the outer cell, tangential cords Z from the cells W passing through the walls of the cells H for attachment to the airship framework or bracing. Valves 13 on the inner cells are arranged close to the flat walls of the outer cells and discharge into trunks 12 between the outer cells. Valves 14 on the outer cells also discharge into these trunks.
Patent GB-252376-A (GB)
Title: Improvements in variable electric condensers
IPC: H01G5/06
Filed: 1926-05-19
Abstract: 252,376. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). May 22, 1925, [Convention date]. Condensers suitable for use either as vernier condensers in conjunction with coarse adjustment condensers, or alone as neutrodyne or like condensers, comprise a moving sector plate e and a stepped fixed plate g, movement of the plate e varying the capacity by varying the distance between the plates. In Fig. 3 is shown a screwshaped fixed plate g<1> and in another form the fixed plate is semicircular and obliquely arranged or it may have such a cross-section that the capacity changes uniformly with the movement. In another form, the moving plate is displaced axially on the shaft at the same time that it is turned.
Patent GB-1308336-A (GB)
Title: Capacitor and seal therefor
IPC: H01G9/02
Filed: 1970-03-17
Abstract: 1308336 Electrolytic capacitors P R MALLORY & CO Ltd 17 March 1970 [27 March 1969] 12865/70 Heading H1M Closure 10 for can 11 of an electrolytic capacitor comprises a polyolefin layer 12, a natural or synthetic rubber layer 13 and a layer 14 for imparting rigidity. The polyolefin may be polyethylene, polypropylene, polybutylene, polystyrene or copolymers of their monomers. The rubber layers may have pierced holes or slits registering with openings in the other layers for passage of terminals and for venting. It is also stated that polypropylene allows gas to diffuse through it for venting and when abnormal high temperatures occur, layer 12 will melt and permit venting. The rubber layer may have a lower uncured or partially cured part and an upper cured part. To prevent the venting slit sealing itself a bored opening may extend through part of the thickness of layers 13 (Fig. 4, not shown). Layer 14 may be phenol-formaldehyde or phenolic resin or metal. The polyolefin layer permits the use of acetic acid electrolytes. The spacer between the capacitor electrodes may be nylon, acetate or P.T.F.E.
Patent GB-455984-A (GB)
Title: A method of and devices for producing illuminating effects
IPC: F21S10/00
Filed: 1935-05-01
Abstract: 455,984. Changing signs. BERND, A., 4, Theresianumgasse, Vienna, and HOBSON, C. W., 9, Park Place, St. James's Street, Westminster. May 1, 1935, No. 13033. [Class 3 (i)] [See also Group XI] A lamp for decorative or advertising purposes comprises a tubular vessel partly filled with liquid, two or more gas or vapour spaces always being present above the surface of the liquid, means for agitating the liquid, and one or more light sources so arranged that only those rays which traverse or are reflected by the liquid are caused to illuminate one or more surfaces either directly or by reflection. The tubular vessel is arranged substantially horizontally, it may be curved, of serpentine form, or bent at one or more points, it may have one or more enlarged parts, and it may be formed with depressions or protuberances. The agitation of the liquid may be caused by mechanical means such as a circulating pump or injector, or air, gas, or vapour bubbles may be generated by heat from the light source or from separate sources. The liquids may be of varying density such as oil and water, or colouring dyes or foaming media may be mixed with the liquids. In the form shown in Fig. 2, light from an adjustable tubular source 20 passes through a slot in a box 19 in which is arranged a transparent or translucent tubular vessel 22 of serpentine shape and partially filled with liquid to form three gas or vapour filled spaces 23, 24, 25. The movement of the liquid causes changing light effects which are observed through a transparent screen 26, with or without reflection from a reflector, or directly in an opaque reflector. A lens 21 may be arranged between the light source and the vessel, curved reflectors may be employed, and a rod 28 may be arranged as shown to produce flickering shadow effects. Alternatively, the rod 28 may be replaced by a stencil or other shadowproducing device. In the form shown in Fig. 3, light and heat from a source 29 pass through the liquid in a curved tubular vessel 30, a partition 31 being provided to screen the remote end of the tube. The liquid may contain floating or other bodies 32 which may be coloured or have refractive edges, or partitions may be provided to interrupt the surface of the liquid. In a modification, a box contains two tubular vessels arranged side by side with an enlarged part at the higher end of each tube, one tube being half filled with alcohol containing a dye, and the other being half filled with water, so that continuously flickering coloured and white rays are reflected from a white reflector disposed above the box.
Patent GB-701459-A (GB)
Title: Improvements in or relating to aviation turbo fuel
IPC: C10L1/198
Filed: 1951-06-01
Abstract: Compounds of the formula <FORM:0701459/III/1> where x and y are integers, X represents a polyhydric alcohol residue and R a hydrocarbon group having from 11 to 21 carbon atoms, are added to jet fuels to prevent plugging of the filters at low temperature, due to ice formation from water contained in the fuel.  In the preferred compounds, R is an oleic radical (C17H33) and X may be a sorbitan residue.  A particularly desirable compound is H(O.CH2CH2)6 O.CH2.CH2.O.COC17H33.  The preferred concentrations are from 0.005 to 0.5 per cent. by volume, and in particular from 0.01 to 0.2 per cent. by volume.  Any jet fuel may be used, but those specified are JP-1 and JP-3 grades of U.S.A. Specification MIL-F, 5616 and 5624, respectively.  The additives may also be used with motor gasolines.
Patent GB-101483-A (GB)
Title: An Improved Method of, and Apparatus for, Indicating the Mean Speed of a Rotating Part, or of a Vehicle, or the like.
Inventor: PETIT HENRI
IPC: B60Q1/54
Filed: 1916-09-14
Abstract: 101,483. Petit, H. Sept. 16, 1915, [Convention date]. Direct measurement of average speed over any interval.-An apparatus for indicating the mean or average speed of a vehicle, shaft, &c., over any selected time-interval comprises two parallel guides 2, 3, conveniently in the form of slots, provided with distance and time scales respectively. An extensible rule 6 passes across the two scales and engages with the slots, and provision is made for moving these engaging points along the slots, uniformly according to time in the one case, and according to the movements of the vehicle &c. in the other case. The mean speed sought is ascertained from a fixed cross-scale, divided to read in ratios on the principle of similar triangles, at the point where the scale is intersected by the edge of the extensible rule.
Patent GB-131284-A (GB)
IPC: C03B9/195
Abstract: 131,284. Hartford-Fairmont Co., (Assignees of Peiler, K. E., and Lorenz, E. H.). Aug. 10, 1918, [Convention date]. Moulding under pressure; blowing.-Relates to machines for moulding plastic substances, such as glass., and particularly to the mechanism for timing the movements of the plungers and tables of the rotating table type of machine, such as is described in Specification 120,907. The invention is stated to be applicable also to glass-blowing machines. The table 23 is rotated intermittently by the engagement of a roller 32 on a crank 31, with passages 28 between blocks 27 on the under-surface of the table 23. A cam-shaft 46, Fig. 3, is driven by bevel-gear 49, 50 from the crank-shaft 30 and carries a cam 45, which draws the crank 31 down clear of the blocks 27, against the action of a spring, by means of levers 41, 43 on a reeking shaft 42. A spring bolt 54, Figs. 18 and 22, engages holes 53 in the table 23 to hold it at each station, and is drawn down free of the table by a cam 62 on the rocking shaft 42 and rocking levers 56, 61. If the bolt 54 is not in one of the holes 53, Fig. 22, a detent 68 connected with the lever 56 engages a lever 69 on the rocking shaft 42, and prevents the crank 31 from rising and striking the blocks 27. Normally the crank 31 is allowed to rise, Fig. 18. and the bolt 54 is then lowered to free the table 23. The crank 31 is also automatically held down in the event of the pressing plunger failing to rise. The piston valve 87, Fig. 7, which controls the fluid pressure operating the piston 75 of the pressing-plunger, is operated by a cam 97 on the shaft 46. The cam 97 consists of the segments 100, 101, 104, Figs. 3 and 10, which can be adjusted relatively to one another, while the machine is running, to alter the valve timing. In its upper position, Fig. 8, the valve 87 admits pressure above the piston 75 by way of the passages 86. 80 to press the ware. As the valve 87 descends it cuts off the passage 80 from the pressure inlet 86 and places it in communication with a relief valve, 85, Fig. 7, which allows some of the pressure to escape from the cylinder 76, and so reduces the pressure on the glass &c. in the mould. The further descent of the valve 87, Fig. 7, admits pressure below the piston 75 and exhausts it from above through a port 82. The locking- bolt 54 can be held down by a hand-lever 63 and the valve 87 can be raised, and hence also the pressing-plunger, by a hand-lever 91. The crank 31 can be held down by a treadle 135, Fig. 3.
Patent GB-1224824-A (GB)
Title: Austenitic heat resistant steel
IPC: A63H27/14
Filed: 1969-03-12
Abstract: 1,224,824. Steel. NIPPON KOKAN K.K. March 12, 1969 [March 13, 1968], No.13145/69. Heading C7A. An austenitic heat resistant steel comprises: - the balance, apart from impurities, being Fe. In examples the steels are forged and solution treated (e.g. at 1100‹ C. for B containing alloys) prior to creep testing.