baber/WOPTO huggingface dataset:
Patent GB-989781-A (GB)
Title: Improvements in or relating to tuning arrangements for television receivers
Inventor: KENWRIGHT RICHARD GEOFFREY
IPC: H01F21/06
Filed: 1961-04-21
Abstract: 989,781. Radio receiving apparatus. PLESSEY CO. Ltd. April 24, 1962 [April 21, 1961], No. 14452/61. Heading H3Q. [Also in Division H1] The aerial, radio-frequency and local-oscillalator tuning coils for a television receiver adapted to receive on one or more channels in both band I and band III are mounted upon a single common former, tuning of the coils being effected by the movement along the axis of the former of a plurality of aluminium slugs carried by an axially-disposed insulating rod. In the arrangement shown, the coils C, F, I, L are used for tuning the receiver to channels within band I and coils A, B, D, E, G, H, J, K for tuning to channels within band III. Tuning is effected by movement of a glass rod 2 carrying aluminium slugs 3, 4, 5, 6; in the full-line positions of the slugs tuning is within band I while in the broken-line positions tuning is within band III. Fig. 3 (not shown) illustrates a push-button mechanism in which an adjustable nylon nut screwed on to a threaded portion of the shaft extending from each pushbutton determines the extent of movement of rod 2 and hence the channel to which the receiver is tuned. A slide switch is associated with the rod 2 to switch over from one set of coils to the other as the tuning elements move between the two positions indicated in Fig. 2. A further push-button provides for frequencymodulation reception.
Patent GB-1012625-A (GB)
Title: New anthraquinone dyestuffs containing a quaternary ammonium group
Inventor: GAMLEN GEORGE ALBERT
IPC: C09B1/20
Filed: 1963-04-10
Abstract: The invention comprises dyestuffs which, in the form of the fre acids, have the formula <FORM:1012625/C4-C5/1> wherein R is hydrogen or an alkyl radical of 1 to 4 carbon atoms, X is a divalent aromatic bridging group containing one or two benzene rings and which is substituted by at least one sulphonic acid group, m is 1 or 2, R1 and R2 are each methyl and R3 is a substituted or unsubstituted aliphatic radical or at least two of R1, R2 and R3 are joined or fused together to form with the quaternary nitrogen atom a heterocyclic ring or ring wherein the said nitrogen atom is linked to carbon atoms present in the said ring o rings through either single bonds or through a single bond and a double bond.  The dyes are made by reacting an amine of the formula NR1R2R3 in aqueous medium with a compound of the formula <FORM:1012625/C4-C5/2> Amines specified are trimethylamine, pyridine and 1:4 - diazabicyclo - (2:2:2) - octane. The dyes dye cellulose textile materials in conjunction with a treatment with an acid-binding agent in reddish-blue to green shades.
Patent GB-693866-A (GB)
Title: Improvements in and relating to methods of paralleling electric alternators
IPC: H02J3/42
Filed: 1951-06-19
Abstract: 693,866. Operating alternators in parallel; automatic control of speed and power. BRITISH THOMSON-HOUSTON CO., Ltd. June 19, 1951, No. 14520/51. Class 38 (iv). Alternators 1, 2, for working in parallel and, more particularly, for use on aircraft, have the speeds of their primemovers 3, 4 maintained constant by separate tachometer generators 17, 36 which, through solenoids 31 and fluid servomotors 20, 25 control the fuel valves 24 of the prime-movers, each solenoid having a further winding 35 by which the fuel valves are further controlled to maintain equality of load division by the alternators. As shown in Fig. 2, the windings 35 are connected (when the paralleling switch 13 is closed) in series in a closed loop containing two resistors 48-one associated with each machine. Circuits 18 develop across each resistor 48 a voltage proportional to the load on the associated machine, the two voltages opposing each other in the loop circuit so that upon deviation from equality of load division a current circulates in the loop circuit causing the two fuel valves to be adjusted in opposite senses to correct the deviation. In a modified arrangement the resistors 48 are individually connected to the associated windings. 35, the loop circuit for maintaining correct load division then containing in series the two resistors 60 and the two current transformers 19 of the circuits 18.
Patent GB-591578-A (GB)
Title: Improvements relating to electric control systems employing light sensitive means, particularly suitable for lateral register correction of moving material
IPC: B65H23/032
Filed: 1942-10-16
Abstract: 591,578. Photo-electric control. BRITISH THOMSON-HOUSTON CO.,L:td. Oct. 16, 1942; No. 14533. Convention date, Oct. 16, 1941. [Class 40, (iii)] [Also in Group XXXV] Registration-The lateral movement of a continuously moving web is corrected with - out.hunting, by means .of a light sensitive device receiving a light beam.reflected from the web and caused by a rotary scanning device to cross a registration line in synchronization with A.C. voltages applied, to .two electric control valves excited in opposite phases. , Means preventing false .operation of valves is included., A reversible : D.C. motor, is; operated .to maintain in lateral register a web bearing a. register line 17 by controlling simultaneously the opposed exciting windings 25c, 25d,..of an armature-reaction excited generator 25. Deviation of the line 17 causes a phase shift of impulses, originated by a photo-electric scanning head 18 and applied to the grids 34c, 34d of a double valve 34, in relation to A.C. voltages mutually displaced 180 degrees. on the anodes 34a, 34b of this valve, whereby the normal balance of charge in condensers 32, 33 may be disturbed. The unbalance is amplified by a double valve 29 which changes the gridpotential of valves 26, 27-in opposite directions to produce, a net, excitation of the generator 25 in a direction and of a value in accordance with the sense and extent of the deviation. The scanning head comprises a four-pole synchronous motor driving four lenses 90 degrees apart, causing a light beam to cross the line 17 and darken the photo-cell 18b twice in each cycle of A.C. Each darkening produces an amplified change of voltage on grid 54d of a double valve 54 ; the sudden drop of voltage on grid 54c which results, causes a. small condenser 53 to charge and produce an impulse on grids 34c, 34d, the amplitude of which depends on the :extent.Àof ,the deviation. To eliminate false operation a phase shifted voltage is applied from a point 70a, through. a rectifier, 73, to:disable the valve 54 during the first. quadrant of voltage on anode 34a and the last quadrant on anode 34b. A tapping on a resistance 47 with the assistance of a visual tuning indicator 77 serves to adjust the balance of excitation of generator 25. A back coupling 79 prevents hunting.,
Patent GB-331328-A (GB)
Title: An improvement relating to tramway points
IPC: E01B7/04
Filed: 1929-05-10
Abstract: 331,328. Murray, J. May 10, 1929. Point-tongues, mounting of.-Tramway pointtongues with an enlarged rounded heel mounted in a socket forming a pivot-bearing, are pressed against the rear of the socket by a ball or roller carried by an adjustable holder in front of the heel. In one form, Fig. 1, the ball 4 is carried by a holder 5 having a threaded stem 6 engaged by nuts 7 on either side of a bridge 8 secured to the box 10, or the nuts may engage a coil spring bearing against the box 10. In another form, Fig. 7, the holder 5 is bevelled and engaged by a wedge 15 pressed forwards by a bolt 12 and spring 14. Specification 118,645 is referred to.
Patent GB-348874-A (GB)
Title: Improvements in two-stroke cycle air-cooled aircraft motors
IPC: F02B25/12
Filed: 1930-05-12
Abstract: 348,874. Two-stroke engines. SZYDLOWSKI, J., 29, Markgrafenstrasse, Baden, Germany. May 12, 1930, No. 14619. Convention date, May 14, 1929. [Classes 7 (ii) and 7 (iii).] In two-stroke aircooled aircraft engines provided with units comprising two cylinders possessing a common combustion chamber, the combustion chamber or fuel-injection chamber B is of tubular form, and has its outer wall exposed to the atmosphere. The pistons E governing air inlet and exhaust ports are displaced by a small angle. The fuelinjection nozzle X is arranged on the axis of the chamber B. Two nozzles may be employed.
Patent GB-205842-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01L5/18
Filed: 1922-05-24
Abstract: 205,842. Noel, L. A. May 24, 1922. Valves.-A sleeve valve b<4> surrounds the piston b, which has a collar in which is a port a<5>. The piston and sleeve reciprocate oppositely and, with ports a<2>, a<1> in the cylinder wall, control the inlet and exhaust of a two-stroke engine. The time of exhaust is very short.
Patent GB-1452164-A (GB)
Title: Sewing machines
IPC: D05B73/12
Filed: 1974-04-02
Abstract: 1452164 Zig-zag sewing machines MANUFACTURE FRANCAISE D'ARMES ET CYCLES DE SAINT-ETIENNE MANUFRANCE 2 April 1974 [13 April 1973] 14654/ 74 Heading D1G A zig-zag sewing machine with adjustable -width, -length, and -centreline has a thread take-up arm 18 (Fig. 10) slidably mounted in a block 17 which rotates with a crank disc 14 on a rotary main shaft 4 for producing vertical movement of a needle bar 16 and two adjacent eccentrics 5, 6 (Fig. 3) mounted on a rotary shaft 2 for controlling vertical and horizontal motion respectively of the feed togs, the eccentric 5 also oscillating a rotary looptaker BC through meshing toothed sector 13<SP>2</SP> and gear 13<SP>3</SP>. Vertical movement of the feed dogs is produced by a cam 13<SP>1</SP> on a shaft 13 which is oscillated by the eccentric 5 and on which is mounted the toothed sector 13<SP>2</SP>. Horizontal movement of the feed dogs is produced by rotation of the eccentric 6 when the pivot A of a link 8 coupled to the eccentric is not coaxial with a rod 7<SP>3</SP> at one end of a bellcrank assembly 7 having the feed dogs pivoted to its dual other end. The shah length is adjusted by rotation of the apposite or revirse stitch side of the slot 12<SP>1</SP>. in its tubular shaft engaged by a follower 11<SP>2</SP> on an arm secured to a shaft 11 having at its other end a further arm carrying the pivot A at its end. A spring 11<SP>3</SP> maintains the follower against one side of the slot 12<SP>1</SP> for forward stitching unless a cenral rod (12<SP>2</SP>) (Fig. 4, not shown) is depressed to engage the follower with the opposite or reverse-stitch side of the slot 12<SP>1</SP>. The needle bar support is pivoted on a fixed lower pivot and an upper pivot 19<SP>2</SP> which is mounted in a movable support 19 having a bore for the upper end of a presser foot 21.  The needle bar is vibrated by a link 27 (Fig. 6) from a rotary cam 22, driven from the shaft 4, via the forked end of a bellcrank lever 24 a member having a curved track 25 and pivoted at one end to a pivot 24<SP>3</SP> of the bellcrank lever 24 and at its other end having a pin engaging a slot 26<SP>1</SP>, (Fig 8) of a lever 26 and a follower 27<SP>1</SP> of the link 27 engaging the track 25. The needle bar 16 has a separate moulded or sintered metal end 30 with a bore 30<SP>2</SP> shaped at the shank of a needle which is held by a locking  screw in the radial opening 30<SP>3</SP>. The link 27 engaging the track The stitching line position is adjusted by manual adjustment of a sector 29 with a pin engaged by the slotted end of the lever 26 and the stitch width is adjusted by manual adjustment of a sector 28 having an arm 28<SP>4</SP> carrying a member 28<SP>3</SP> with a slideway for the link 27. Pivoting of the sector moves the link follower 27<SP>1</SP> in the track 25. The sectors 28, 29 each have a series of depressions engagable by springs 28<SP>2</SP>, 29<SP>2</SP>. The throat plate 31 is provided with resilient members 31<SP>2</SP> engageable with oblique surfaces 32 of the machine bed (Fig. 19).
Patent GB-497469-A (GB)
Title: Shoulder strap supporter
IPC: A41F15/02
Filed: 1938-05-18
Abstract: 497,469. Fastening wearing - apparel. SMITH, W E. May 18, 1938, No 14821. [Class 141] A detachable shoulder strap supporting device comprises a strip of material 10 having a snap or other fastener element 11 adjacent one end, the other end being formed as a loop 15 which is secured to the strip 10 by a snap or other fastener element 13, the elements 11, 13, being adapted to cooperate with each other to form a loop 14 through which the shoulder strap passes, and the lateral ends of the loop 15 being provided with complementary snap or other fastener elements 17, 18, which are adapted to receive between them the inturned portions 19 of the garment just below the shoulder seam, for securing the device to the garment. The elements 11, 13, are disposed on one side of the device, and the elements 17, 18, of the opposite side thereof. The strip 10 extends beyond the element 11 to form a finger hold 12. In a modification, the cross-piece 22 of the loop 15 may be dispensed with.
Patent GB-656201-A (GB)
Title: Improvements in or relating to arrangements for operating on d.c. high pressure metal vapour electric discharge lamps
IPC: H05B41/231
Filed: 1948-06-02
Abstract: 656,201. Metal-vapour lamps. GENERAL ELECTRIC CO., Ltd., ISAACS, G. G., and NELSON, E. H. June 2, 1948, No. 14892. [Class 39 (i)] A high-pressure metal vapour discharge lamp is operated on D.C. without liquid cooling, under conditions in which the metal filling is not completely evaporated, and a positive or only slightly negative characteristic obtains, the stabilizing series resistance being so small that the voltage drop thereacross is only a small fraction, preferably less than a tenth, of the supply voltage, the lamp also having a heatconserving enclosure for simmering. In Fig. 2, ABCH represents the thermal equilibrium characteristic of a lamp operated from a supply voltage Vs. The vapour density is variable over the part AB and constant over the part BCH, B being the point at which all the metal filling has evaporated. According to prior art, if the loading is sufficiently high, the maximum density part of the curve, i.e. BH, has a positive region, P representing the point on this region at which the lamp is operated, and being defined as the intersection with the characteristic of the circuit load line VsX. A<SP>1</SP>B<SP>1</SP>C<SP>1</SP> is the characteristic of a second lamp operated according to the invention, with a large excess of metal filling, and run under the same voltage-current conditions as the first, with increased cooling, so that the operating point P now occurs on the variable density part of the curve, before all the metal has evaporated. Each point on A<SP>1</SP>B<SP>1</SP> will have a corresponding constant density curve passing through it, and BCH also represents such a curve for the point P. Again providing the loading is sufficiently high, the constant density curve BCH will have a positive characteristic. The lamp thus operates with saturated vapour at the point P on A<SP>1</SP>B<SP>1</SP>C<SP>1</SP> with only a low stabilizing series resistance, and as the slope of A<SP>1</SP>B<SP>1</SP> is much greater than that of BH, the wattage dissipation of the second lamp is much less sensitive to fluctuations in supply voltage; thus, if the latter is increased from Vs to Vs<SP>1</SP>, the wattage change from P to P<SP>2</SP> is much less than that from P to P<SP>1</SP>. Under these conditions, the wattage dissipated tends to become altered by changes in the lamp temperature, and this disadvantage is turned to use when the lamp is surrounded by a heatconserving enclosure H, Fig. 4, for simmering periods, since the operating wattage then automatically falls considerably without requiring the alteration of any circuit components. Rs is a high series resistance initially in circuit, subsequently cut out by a switch M\ leaving only the low stabilizing resistance, which may be merely the resistance of the leads.
Patent GB-1519697-A (GB)
Title: Blended elastomer compositions
IPC: C08L9/00
Filed: 1976-04-13
Abstract: 1519697 Elastomer blends PHILLIPS PETROLEUM CO 13 April 1976 [14 April 1975] 15073/76 Heading C3M Elastomer blends comprise (A) 10 to 60 parts by weight of rubbery homopolybutadiene having at least 35% of the units in cis configuration, (B) 15 to 65 parts by weight of rubbery styrene/butadiene copolymer containing 15 to 30 weight per cent of styrene and (C) 25 to 75 parts by weight of homopolybutadiene having 30 to 50% of the units in vinyl configuration, said parts by weight being per 100 parts of the blend. The blends may be compounded with carbon black and extender oils.
Patent GB-529086-A (GB)
Title: Improvements in road studs
IPC: E01F9/07
Filed: 1939-05-22
Abstract: 529,086. Road studs. MACNAB, J. May 22, 1939, No. 15142..[Class 87 (i)] A road stud for marking out traffic lanes, stop lines, wording or other road markings comprises a hollow cap b of rubber,or other moulded resilient material, the interior of which is filled by a block c of sponge rubber or other material of higher resiliency than the cap. In a preferred construction the stud comprises a metal casing a with a ridge d for supporting the rubber cap b and a ridge e for preventing its withdrawal. The cap b may have a plain upper surface but is preferably provided with light reflecting elements g placed in grooves h with cross grooves i to give a non-slip surface.
Patent GB-1457885-A (GB)
Title: Oxidation of cellulose
IPC: C08B15/04
Filed: 1973-03-29
Abstract: 1457885 Tobacco substitute GALLAHER Ltd 8 March 1974 [29 March 1973] 15188/73 Heading A2C [Also in Divisions C3 and D2] Oxy cellulose, obtained by reacting cellulose under defined conditions with nitrogen dioxide dissolved in aqueous nitric acid, is used as a tobacco substitute, on its own or impregnated with calcium oxalate.
Patent GB-900492-A (GB)
Title: Improvements in or relating to relief-valve devices for hydraulic power systems
Inventor: BOOTH DOUGLAS GERHARD
IPC: F16K17/00
Filed: 1959-05-04
Abstract: 900,492. Fluid-pressure servomotor-control systems. PLESSEY CO. Ltd. April 22, 1960 [May 4, 1959], No. 15191/59. Class 135. A relief valve device comprises a pressurerelief valve 6 which is controlled by a pressureresponsive main pilot valve 13 so as to normally maintain a predetermined pressure, and a second pilot valve 16 connected to the relief valve in parallel to the main pilot valve and controlled by a heat-sensitive member so as to cause, when the temperature rises above a predetermined level, the relief valve to open at a lower pressure than that for which the main pilot valve is set. The relief valve 6 is slidable in a housing 4 and is loaded by a spring 7 to the closed position shown; a restricted orifice 15 is formed in the valve 6 providing continuous communication between an inlet 3 and a passage 11 leading to a reservoir via a port 12 normally closed by the main pilot valve 13. In operation, if excess fluid pressure develops in the passage 11, the valve 13 opens and the fluid passes to the reservoir via passage 12; the pressure in the passage 11 is then reduced and the relief valve 6 thereby moved under the inlet pressure so that land 9 uncovers a port 8 and so allows the fluid to flow to the reservoir through a port 10. The second pilot valve 16 is actuated through a temperature-sensitive capsule 21 which through a plunger acts upon the ball 16. Upon an abnormal increase in temperature of the control fluid, the valve 16 is opened, thereby allowing the fluid to flow to the reservoir via passages 17, 18; the resultant reduction in pressure in the passage 11 causes the valve 6 to open.
Patent GB-825971-A (GB)
Title: Improvements in or relating to holders for containers
Inventor: MOSSE RICHARD WOLFGANG EMIL
IPC: B65D71/66
Filed: 1957-05-14
Abstract: 825,971. Holders for cans. METAL BOX CO. Ltd. Feb. 7, 1958 [May 14, 1957; June 28, 1957], Nos. 15336/57 and 20579/57. Classes 94(1) and 133. A holder for cans 8, Fig. 2, comprises a base 1, side walls 2, 3, and tongues 10 that fit within the upper rims 11 of the cans to keep the walls 2, 3 in an up-folded condition and constrain the cams against movement. As shown the holder has lower openings 6 into which the bases of the cans 8 extend, and slits S between the openings 6 and the tongues 10. The slits S are wavy and may be of interrupted form I, Fig. 4, the tongues 10 of each wall extend from a common opening 6 terminating short of the base 1. In a modified form of Fig. 4, each tongue 10 extends from the top of individual openings 6 that terminate at the base 1. In both of these cases the walls 2, 3, are extended to form carrying handles 12. The construction illustrated in Fig. 2, may be modified such that the slits S are straight or alternatively such that the bottom openings 6 are extended up to the top of their respective side walls.
Patent GB-482238-A (GB)
Title: Improvements in or relating to railway signalling systems
IPC: B61L1/16
Filed: 1937-06-02
Abstract: 482,238. Railway signalling systems. VEREINIGTE EISENBAHN - SIGNALWERKE GES. June 2, 1937, No. 15356. Convention date, May 4. Addition to 424,909 and 472,287. [Class 105] The railway signalling system with the signal controlled by axle-counting mechanism and independently put to danger by a track contact situated ahead, as described in Specification 472,287, which is a modification of that described in the Specification 424,909, is provided with an auxiliary relay in the circuit to the track contact and such relay has a parallel circuit, including a contact of a main signal relay, by which it can be energized independently of the track contact. The relay 14 which may be a main signal relay or a locking magnet for a signal lever is energized over contacts 27, 12 of the axle-counting mechanism 25, 26 and auxiliary relay 10 which is a stick relay. A train travelling to the right will. actuate the counting mechanism to reverse the contact 27 and will open the track contact 50 in the circuit of the auxiliary relay 10. The reversal of contact 27 drops the signal relay 14 and a back contact 141 thereof closes and so picks up the auxiliary relay 10. If the axle-counting mechanism fails to respond then the auxiliary relay 10 remains de-energized after the track contact 50 has been operated and thus the signal ,relay 14 in this case is dropped by the open contact 12 of the auxiliary relay 10. In the case of reverse travel the speed may be high and so would not allow sufficient time for the auxiliary relay 10 to lift (the pick-up circuit is opened as soon as the axle-counting mechanism has returned the contact 27 to normal) if it were not for the presence of the parallel circuit by which the auxiliary relay 10 has already been picked up and by which it remains energized notwithstanding the opening of the track contact 50. This parallel circuit includes a contact 141 which is only closed when the Signal is dropped.
Patent GB-117368-A (GB)
Title: Improvements in an Adjustable Golf-ball-tee Device.
Inventor: DAVID HOWARD LANDIS
IPC: A63B57/00
Filed: 1917-10-23
Abstract: 117,368. David, H. L. Oct. 23. 1917. Tees.-A block a is formed with a radial opening a<1> which is narrower at the inner end so that a stem b may be frictionally held therein. The stem is slotted at b<2> to receive a pin b<3> fixed to the block so that it can be adjusted vertically. The top of the stem is recessed to form a seat for the ball c. When not in use, the stem rests in the position shown by dotted lines in Fig. 3.