baber/WOPTO huggingface dataset:
Patent GB-135281-A (GB)
IPC: F01L5/04
Abstract: 135,281. Tate, W. H., and Hooley, J. H. Nov. 19, 1918. Valves.-A reciprocating piston valve 11 for an internal-combustion engine has a single central passage 16 wide enough to put a single port 13 in the cylinder head into communication alternately with inlet and exhaust ports 14, 15 in the valve casing, the passage 16 having parallel vanes which become heated by the exhaust gases and serve to vaporize the incoming fuel. The valve is kept pressed against the valve-actuating mechanism by a spring 19, which is protected from the heat of the valve by a steel cup 25. The valve is fitted with broad rings 18.
Patent GB-975098-A (GB)
Title: Improvements in or relating to distributed amplifiers
Inventor: FULLER DENNIS QUINTRELL
IPC: H01L21/00
Filed: 1962-04-09
Abstract: 975,098. Transistor distributed amplifiers. PYE Ltd. March 26, 1963 [April 9, 1962], No. 13575/62. Heading H3T. [Also in Division H1] A transistor distributed amplifier, e.g. Fig. 1, has the inter-stage delays dependent on the drift time of charge carriers in treated portions of semi-conductor material (see Division H1). The value of R5 determines in part the frequency response and is adjusted for each resistor separately utilizing a micro-manipulator. Resistors R2 may be omitted. The amplifier may be of the grounded base kind.
Patent GB-342615-A (GB)
Title: Improvements in and relating to vacuum electric switches
IPC: H01H33/66
Filed: 1930-05-02
Abstract: 342,615. Vacuum switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl Ufer, Berlin.) May 2, 1930, No. 13590. Convention date, May 2, 1929. [Class 38 (v).] In order to reduce the mechanical strains on the vacuum container due to the switching movements, the mass of the moving parts is reduced to a minimum by using a fixed lead-in conductor 1 rigidly secured at 21 to the container and confining the moving parts to the moving contact 5 connected with the lead-in 1 by means of the bellows 17 and operated by a light-weight rod 8 passing through the lead-in conductor. The rod 8 is depressed, against the action of the spring 10, to close the switch by a snail cam 13. When the point of the cam is carried past the roller 15 on the rod 8 a quick break ensues with a minimum of moving parts. The cam and spring are located in a metal container 9 sealed on to the vacuum container 3, and the metal container is subjected to a low degree of vacuum in order to reduce the forces necessary to operate the switch. The movable contact is connected to the end of the bellows by a spring 20 and is further guided by spring plates 19 depending from the lead-in conductor 1. The outgoing conductors are shown at 16 18.
Patent GB-1501815-A (GB)
Title: Inking unit for printing machines
IPC: B41F31/02
Filed: 1976-04-05
Abstract: 1501815 Inking apparatus for printing machines HEIDELBERGER DRUCKMASCHINEN AG 5 April 1976 [5 July 1975] 13681/76 Heading B6C [Also in Division G3] An inking unit has a duct blade 6 controlling the amount of ink applied to the ductor roller 2 by the time it is moved away from the roller. The blade is pulled away by spring 15 being deformed by electromagnet 11, which is actuated by pulses supplied from a control circuit (Fig. 3, not shown). A plurality of electromagnets are preferably provided across the width of the machine. Adjustable stops 32 determine the maximum opening of the blade. A pulse generator controlled in response to the machine speed provides pulses to a counter, and settable switches determine which output of the counter each individual electromagnet responds to. Shield 17 may be provided to prevent fouling of the blade moving system.
Patent GB-125555-A (GB)
Title: Wheel Forks for Cycles, Motor-cycles and the like.
Inventor: STARLEY WILLIAM
IPC: B62K19/02
Filed: 1918-08-27
Abstract: 125,555. Starley, W. Aug. 27, 1918. Forks. - Wheel forks for cycles, motor-cycles, and the like, of the kind made from sheet metal and embodying t w o tubular parts united by a triple integral web, are made by first forming two parallel channels and then turning in the marginal edges d, e, so that only one outside edge is left, abutting closely against a tubular portion, for example b. The three overlapping thicknesses c, d, e are subsequently riveted together. The upper and lower ends may be secured as shown in Figs. 4 and 5, or by the usual plug or socket members m, l as shown in Fig. 2, brazed or welded into place. As shown in Fig. 4, the end lug consists of two plates f, g riveted together, the plate f being inserted between the members c, d of the web; as shown in Fig. 5, an external reinforcing-member j is riveted on. The tubular parts a, b may be of different diameters and may converge or diverge from each end as shown in Fig. 2, in which form an insertion may be welded in at k.
Patent GB-706635-A (GB)
Title: Improvements in and relating to fall controlled luffing or gravity davits
IPC: B63B23/04
Filed: 1951-06-12
Abstract: 706,635. Davits. SCHATS DAVITS, Ltd., and SMIRNOFF, V, June 12, 1951, No. 13881/51. Class 115 In a fall controlled luffing davit comprising an arm 14 having two spaced points 15, 16 guided in predetermined individual paths 17, 18, the outboard guided point 15 being located below the boat in stowed position and adjacent the keel thereof and being movable along the path 17 that is downwardly inclined in outboard direction; the path 18 of the inboard guided point 16 is so determined that the velocity of the outboard point 15 in its outboard movement decreases to zero or substantially zero. In the embodiment of Fig. 1 as the inboard point 16 moves outboard to 16<SP>1</SP> the outboard point 15 moves to 15<SP>1</SP> and its velocity becomes zero, thereafter the inboard point moves to 16<SP>11</SP> whilst the outboard point remains at the bottom of the guide 17 so that 15<SP>11</SP> coincides with 15'. In a second embodiment the inboard point describes an arc since it is at one end of link whose other end is pivoted to the davit bracket coaxially with the sheave 11, whilst the outboard point moves down to 15<SP>1</SP> as in Fig. 1 and then retrogrades so that 1511 coincides with 15. In a third embodiment the inboard point moves in a straight path. In a fourth embodiment the two guided points each move in its individual path which comprises two straight sections. In all embodiments the centre of gravity of the movable system follows a substantially rectilinear path during the movement of the outboard point from its positions 15 to 15'.
Patent GB-658275-A (GB)
Title: Improvements relating to counters applicable to meters and other purposes
IPC: G06M1/06
Filed: 1948-05-21
Abstract: 658,275. Counting-apparatus. SMITH METERS, Ltd., CHARLES, A., and CHARLES, J. A. May 21, 1948, No. 13886. [Class 106 (i)] The units numeral wheel 16 of a consumptionmeter indicator, or other counter, is driven through a multiplying gear and an intermittent driving mechanism, in order to secure a quick change of indication. In the mechanism shown, a single tooth Geneva driving member 11 is driven at double the speed of the test dial index spindle 1 through a multiplying crown wheel 4 and pinion 5. The driven element of the Geneva gear is a pinion 14 meshing with the units wheel 16 ; it is similar to the transfer pinions between the several numeral wheels and mounted on their spindle 15. An alternative construction with numeral bearing discs, in place of the wheels 16, is also described.
Patent GB-350177-A (GB)
Title: Improvements in electric motor controllers
IPC: H02P1/20
Filed: 1930-05-06
Abstract: 350,177. Master control of D.C. motors. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.- (Cutler-Hammer Manufacturing Co. ; Milwaukee, Wisconsin, U.S.A.) May 6, 1930, No. 13890. [Class 38 (iii).] Armature control checked by motor current.-Motor starting resistance is controlled by one or more electronic valves, the impedance of which is varied in accordance with the current variations through an inductance connected in parallel with the starting resistance. When a switch S is closed, the motor A is connected across the supply through resistances R1, R2, R3, and inductive windings 12, 13 with resistances W3, W2, in series, are connected in parallel with sections R2, R3. The initial current rush being partly shunted through these inductive windings, a voltage is induced in a winding I1 so that the negative potential on the grid G1 of an electronic valve T1 gradually becomes positive with respect to the filament F1. The valve T1 then passes sufficient current to energize a coil M1, which closes a switch Sl to cut out resistance section R1. At the same time the winding 13 is short-circuited through its resistance W2, so that as the short-circuit current gradually falls to zero, the negative potential of the grid G1 of a valve T2 is reduced, so that the current through the valve is increased sufficiently to energize a coil M2 which closes a switch S2 and cuts out resistance section R2. The winding I3 acting on the grid G3 of a valve T3 causes the last switch S3 to close and to place the motor directly across the supply.
Patent GB-438198-A (GB)
Title: Improvements in or relating to skip hoists
IPC: B66B17/26
Filed: 1934-05-08
Abstract: 438,198. Guided skip hoists ; charging ships. PRESLAND, C. W., Dumsey Point, Shepperton-on-Thames. May 8, 1934, No. 13911. [Classes 78 (iii) and 78 (iv)] [See also Group II] In a guided skip hoist of the kind in which the skip is attached to driven endless chains so that it can be raised and lowered without reversing the driving motor and is charged automatically at the lower point of its run, the charging- chamber is fed by mechanism driven by the hoisting motor. The Figure shows a skip 5 running in guides 1 and attached by links 6 to a cross-bar spanning two parallel endless chains 2 driven from the shaft 16. The guides are bent at the upper end 1<a> to effect automatic tipping of the skip, but the contents may also be discharged by a drop-down door released automatically at the tipping-point. A balance weight, attached by a rope to the cross-bar between the chains, balances the weight of the skip and part of the load. In some cases this weight may be accumulative ; additional weights being picked up as the operation proceeds. The skip also carries one or more projections 5b which swing open the door 22 of the charging hopper 21 against the action of the counterweight 23. The hopper 21 is fed gradually from a bunker 25<a> by a plate 24 reciprocated by the hoisting motor slowly at right angles to the plane of the paper along the bottom of the bunker. This plate stirs up the material and delivers a small quantity at each stroke either past the outer edge or through an orifice in the centre. The speed is fixed so that a skip load is delivered to the hopper during the time occupied by one double journey of the skip.
Patent GB-1531099-A (GB)
Title: Gas burners
IPC: F23Q9/00
Filed: 1976-04-06
Abstract: 1531099 Controlling burners CHAFFOTEAUX ET MAURY 6 April 1976 [14 April 1975] 13918/76 Heading F4T A burner includes a heat-sensitive element 8 located on the axis of a flame 1 so as to be slightly downstream of the blue core 6 under normal conditions, and means for surrounding the base of the flame with a continuous or discontinuous ring of flamelets 9 produced by combustion of the same gas mixture. The flame 1 is formed at an orifice 3 defined by a bush 13 at the end of a gas supply duct 2, a small portion of the gas passing through holes 12 in a frustoconical or planar wall 15 to chamber 11 defined by the bush 13, the wall 15 and a removable collar 16 to issue from a continuous circular opening 10 between the bush 13 and the collar 16 to form a continuous ring of flamelets. Alternatively, Figs. 3, 4 (not shown), the flamelets 9 may issue from a series of circularlydisposed openings in an end wall 18 of the duct 2. The flame 1 may be a pilot flame for igniting main burners 4, and to aid this further flamelets 21 may issue from openings 20 in the collar 16.
Patent GB-594612-A (GB)
Title: Improvements in electronic control apparatus, particularly for controlling the speedof d.c. motors
IPC: H02P7/26
Filed: 1945-06-02
Abstract: 594,612. Follow-up control systems. BURT, E. G. C. June 2, 1945, No. 13926. [Class 40 (i)] In a circuit for deriving an A.C. voltage varying in amplitude and phase in accordance with the valve and sense of the difference between two D.C. potentials, two rectifiers are connected in series with a centre-tapped resistor across a centre-tapped supply transformer. The two D.C. potentials being applied to the terminals 14 and 15 so that on the halfcycles when the rectifiers are conducting, current will flow through resistor 13 giving rise to a polarized A.C. potential in resistor 13, the A.C. component of which is taken off through blocking capacitor 18. Any higher frequencies present are byepassed by capacitor 16. A centre-tapped resistor may be used to dispense with the transformer centre tap. The rectifiers may be crystals or diodes. The circuit may be used in a system for controlling D.C. motors.
Patent GB-217414-A (GB)
Title: Improvements in or relating to electrolytic processes
IPC: C25B1/36
Filed: 1923-05-28
Abstract: 217,414. Jackson, W. J. Mellersh-, (Mathieson Alkali Works, Inc.). May 28, 1923. Amalgams, alkalis, and chlorine, obtaining.- Spent electrolyte from the electrolysis of alkali metal chloride solution in cells having a mercury cathode, as in the Castuer process, is resaturated with raw salt containing soluble impurities such as compounds of iron and manganese, liable to affect the process adversely by causing decomposition of the amalgam. These are removed after settling the coarser impurities such as shale and gypsum, by allowing the solution to stand, say for an hour, during which they are precipitated by other constituents of the brine. The precipitation may be accelerated by the addition of small amounts of sodium hypochlorite or other reagents. The solution is then passed through a sand filter and returned to the cell. The temperature is maintained between 40‹ and 70‹ C. during electrolysis and regeneration.
Patent GB-991080-A (GB)
Title: 7-glycine kallidin
IPC: C07K7/18
Filed: 1963-04-09
Abstract: The invention comprises L - lysyl - L - arginyl - L - prolyl - L - propylglycol - L - phenylalanylglycyl - L - prolyl - L - phenylalanyl - L-arginine (7-glycine kallidin) and its preparation by hydrolysing methyl bis - benzyloxycarbonly - L - lysyl - nitro - L - arginyl - L - prolyl-L - prolylglycyl - L - phenylalanylglycyl - L-prolyl - L - phenylalanyl - nitro - L - arginate and hydrogenating the resulting protected nonapeptide acid. acid.  Methyl bis - benzyloxycarbonyl - L - lysylnitro - L - arginyl - L - prolyl - L - prolylglycyl-L - phenylalanylglycyl - L - prolyl - L - phenylalanyl - nitro - L - argininate is made by treating methyl N-a -benzyloxycarbonyl-nitro-L-arginyl - L - prolyl - L prolylglycyl - L - phenylalanylglycyl - L - prolyl - L - phenylalanyl nitro - L - argininate with HBr in acetic acid and treating the product with bis-benzyloxycarbonyl-L-lysine p-nitrophenyl ester.
Patent GB-257343-A (GB)
Title: Improved method of and apparatus for producing concrete and like blocks for buildingand other purposes
IPC: B28B1/04
Filed: 1925-05-29
Abstract: 257,343. Concrete, Ltd., and Mathews, C. B. May 29, 1925. Tamping - machines.- To ensure blocks of uniform size, the tampers act through an intervening member which is adapted to penetrate the mould to a definite extent. As shown, concrete is pressed in a mould 2 by pressers 4 carried by an intervening member 8 adapted to receive blows from hammers 9 operated through cams 13 and springs 18. A shoulder 5 limits the descent of the pressers into the mould. The member 8 is suspended from a carriage 11 supporting the hammers &c. and adapted to be raised by ropes 21 clear of the moulded blocks which are ejected from the mould by a bottom plate 2a actuated through rods 25, 27. The mould may be subdivided by partitions and furnished with cores. According to the Provisional Specification, the hammers are operated by rack-andpinion gear controlled by pedal or lever operated detents, or by a pneumatic or steam hammer; also the blocks are ejected by lever mechanism.
Patent GB-419672-A (GB)
Title: Improvements in or relating to fastening-inserting machines
IPC: A43D71/00
Filed: 1933-05-16
Abstract: 419,672. Stapling. BRITISH UNITED SHOE MACHINERY CO., Ltd.-(United Shoe Machinery Corporation; 140, Federal Street, Boston, U.S.A.), LANE, H., and PRATT, J. W., Belgrave Road, Leicester. May 16, 1933, No. 14134. Addition to 401,706. [Class 89 (iii).] Relates to fastenerinserting machines wherein, as described in the parent Specification, the fastener S is driven from a throat 16 against a deflector 20 whereby it is curved progressively as it enters the work, the deflector being adjustable to either of two limiting positions so as to vary the curvature of the fastener at different points in a workpiece, and the said limiting positions also being adjustable simultaneously for varying the curvatures of the fastener for different workpieces, and consists in means for effecting readily the several adjustments of the deflector. The deflector 20 is pivoted on a pin 26 and is adjustable by means of an eccentric 28 on a shaft 30. The latter is gripped frictionally in a split bearing portion 38 of an adjusting member 36 which is movable by a hand-lever 42 to either of two positions which are defined by the engagement of a spring latch 44 on the member 36 with two notches 46, 50, the notch 50 being adjustable along a guideway 54. For varying the fastener curvatures in different workpieces, the shaft 30 is rotated in the frictional bearing 38 by a gear member 60 fast on a shaft 62 which is mounted in the adjusting member 36 and is provided with an operating handle 64.
Patent GB-784310-A (GB)
Title: Improvements in raking devices
IPC: A01D78/00
Filed: 1954-08-18
Abstract: The subject-matter of this Specification is included in that of Specification 784,308 but the claims differ.  Specification 784,313 also is referred to.
Patent GB-803641-A (GB)
Title: Automatic regulation of electric converters
Inventor: DOUBLE HUGH STANLEY
IPC: G05F1/32
Filed: 1954-05-14
Abstract: 803,641. Automatic current control systems. SIEMENS EDISON SWAN, Ltd. Aug. 5, 1955 [May 14, 1954], No. 14242/54. Class 38 (4). The load current drawn from an A.C./D.C. converter is maintained substantially constant with changes in load resistance and A.C. supply voltage by energizing control windings (II) of series saturable chokes CHA, CHB connected on the A.C. side of the converter in accordance with the output of a bridge network CSN connected in series with the load terminals TL. The bridge comprising resistors YX, YY and barretters BRX, BRY has its output applied to control windings (II) of the saturable chokes CHD, CHE of a magnetic amplifier having a D.C. output over a rectifier bridge BR to windings (II) of chokes CHA, CHB. The magnetic amplifier has its A.C. windings (I) energized over a transformer TRB from the converter supply terminals TA, and also comprises positive feed-back windings (III) energized in the same sense as windings (II). Regulation is improved by further control windings (III) of chokes CHA, CHB which are energized over an adjusting resistor YA in accordance with the load voltage across terminals TL, and further control windings (IV) of amplifier chokes CHD, CHE which are energized over a rectifier CR in accordance with a fixed portion of the converter supply voltage to oppose windings (III). The voltage responsive windings (II) on chokes CHA, CHB are disspensed with in. an alternative arrangement; and, in a further modification, windings (IV) on chokes CHD, CHE are dispensed with, the windings (III) being then energized in opposition to windings (II) to provide negative feed-back.
Patent GB-965716-A (GB)
Title: Improvements in or relating to processes for the production of steroid compounds andnew steroid compounds formed in the course of such processes
IPC: C07J1/00
Filed: 1962-04-12
Abstract: The invention comprises the 3-(cyclic ketals) of 17b -hydroxy-estra-5(10), 9(11)-dien-3-one, the corresponding 17b -acyloxy derivative and a process for the production of 17b -hydroxy-estr-5(10)-en-3-one or its 3-ketals, in which a 3-(cyclic ketal of 17b -hydroxy-estra-5(10), 9(11)-dien-3-one having the formula: <FORM:0965716/C1/1> (where R and R1 which may be the same or different each represents H or an alkyl radical having from 1 to 8 carbon atoms; and n is 0 or 1) is catalytically hydrogenated thus effecting the selective reduction of the 9(11) double bond and thereby forming the corresponding 3-ketal of 17b -hydroxy-estr-5(10)-en-3-one which may, when desired, be converted into 17b -hydroxy-estr-5(10)-en-3-one by liberating the protected 3-ketone group. The starting compound may be obtained by reacting a 17b -hydroxy- or 17b -acyloxy-estra-4, 9-dien-3-one with a ketalising agent, e.g. ethylene glycol, in the presence of an acid catalyst and in the case of the 17b -acyloxy product saponifying, e.g. with an alkali metal base.  The selective hydrogenation may be effected with palladium or platinum. Specifications 914,736, 914,737 and 965,712 are referred to.
Patent GB-985514-A (GB)
Title: Front-projection cathode ray tube
Inventor: LEA PETER GORDON
IPC: H01J29/86
Filed: 1961-04-20
Abstract: 985,514. Cathode-ray tubes. RANK-BUSH MURPHY Ltd. April 18, 1962 [April 20, 1961], No. 14279/61. Heading H1D. A front-projection cathode-ray tube comprises a metal closure member 5 sealed to the body of the envelope 3 of the tube by a rim 6 lying in a plane parallel to the margin of an aperture in the tube envelope and dished so that a planar area of its inner surface which carries a luminescent screen 7 is displaced from the plane of the rim. In a particular example, the glass of the envelope was a lead glass, the metal closure member a nickel-chromium-iron alloy, and the two components sealed by a suitable sealing glass having a matching coefficient of thermal expansion. The displaced planar area of the metal enclosure member may lie in a plane inclined to that of the rim so that the normal at the point of intersection of the neck axis 2 has an angle of incidence upon a planar optical window 4 which differs substantially from zero, as described in Specification 985,513.
Patent GB-268185-A (GB)
Title: Process and device for treating cinematographic films
IPC: G03D15/00
Filed: 1926-06-07
Abstract: 268,185. Stock, J. J. F. March 30, 1926, [Convention date]. Cleaning and finishing. - The film is cleaned and smoothed by passing over a brush constructed of material such as wire which conducts heat rapidly, tension being maintained by means such as weights supported in depending loops of film in order to press the film against the brush. In the form shown, the film is drawn from a reel d into a casing a and passes over a sprocket m, under a weighted tensioning-roller r slidable. in a vertical slot s, into a casing g containing the brush, over a sprocket i outside the casing g, and then back through the brush casing, under another weighted roller r, and over a sprocket n, whence it passes out of the casing a to a take-up reel e. The brush, which is preferably constructed of german silver wire, is driven in the same direction as the film by a motor c in the casing a, and this motor serves also to drive the reels d, e and sprockets i, m, n through appropriate gearing. A space t is provided in each brush casing g for the reception of cleaning liquid such as methylated spirit or petrol. The arrangement is duplicated on opposite sides of the casing a, so that both the back and the front of the film may be treated, the brush for the front being finer than that for the back. More than one brush casing may be provided at each side of the machine. Electric contacts may be arranged at the ends of the slots s, so that the rollers r may give a warning signal, or stop the machine, if the tension of the film becomes too tight or too slack.