baber/WOPTO huggingface dataset:
Patent GB-304960-A (GB)
Title: Self-adjusting rear-stand for motor-cycles
IPC: B62H1/00
Filed: 1928-04-12
Abstract: 304,960. Hann, A. G. April 12,1928. Supports attached to cycles.-A rear stand for motor-cycles is provided with legs a, c, which are telescopically mounted in the side tubes or members d<1>, d<2> of the stand and are automatically adjusted in length, according to the slope or irregularity of the ground, by means of a centrally-pivoted rocking lever l, the ends of which pass through slots s<1>, s<2> in the tubes d<1>, d<2> and engage recesses in the legs a, c. which are retained in adjusted position by a locking-device. When the stand is lowered, if one leg reaches the ground first, it is pushed upwards and rocks the lever, thus depressing the other leg until it reaches the ground. As shown, the locking-device consists of a bolt f passing through one of the side tubes and legs and having a wing-nut or short lever r, whereby curved washers are pressed against the outside of the tube d<1>. Alternatively, the locking- device may consist of a band of spring steel secured to the sliding leg and passed through two spaced slits in the side tube, the external part being adapted to be engaged by the frame of the machine and receive its weight to lock the parts in position.
Patent GB-109887-A (GB)
IPC: B62K25/28
Abstract: 109,887. Biggs, T. J., and Baker, F. E. Nov. 23, 1916. Spring devices.-In spring mountings for the rear wheels of motor-cycles, wherein a hinged triangular wheel frame a, b, c is controlled by a laminated spring arranged parallel to the seatpillar member d of the main frame, the laminated spring e is attached to the seat tube both at its lower end and at an intermediate point and its upper end is connected to the wheel frame either directly, as shown in Fig. 1, or by a link. The intermediate point on the spring is connected to the seat tube by a link f. As shown, there may be a spring e on each side of the seat tube, and the third side c of the wheel frame may be formed by a mud-guard or a part thereof. The hinge connexion of the wheel frame to the seat tube may be in front of this tube.
Patent GB-890173-A (GB)
Title: Method of coagulating suspended matter
IPC: C02F1/52
Filed: 1960-03-29
Abstract: Solids in suspension are coagulated by adding potassium metaphosphate (Kurrol salt) in the presence of a sodium salt as a solubilising agent.
Patent GB-1359808-A (GB)
Title: Viscous fluid clutch assemblies
IPC: F16D35/02
Filed: 1973-03-07
Abstract: 1359808 Viscous shear coupling GENERAL MOTORS CORP 7 March 1973 [13 March 1972] 11005/73 Heading F2C The coupling and de-coupling of a fan 15 to an engine output shaft 12 is effected by the movement of a control disc 46 towards and away from respectively a driving disc 42 fixed to the shaft 12 and rotating in a fluid containing chamber 44 defined by a driven housing 18, 22, the movement of the control disc 46 being by a wax-filled thermostat 62. The disc 46 is connected to a wall 24 of the driven member by three parallel leaf springs 48, 50, 52 as shown in Fig. 2, the ends 49, 53 being connected to the disc 46 and the ends 47, 51 to the wall 24, this causing the spring 50 to assume the shape shown in Fig. 1. The pin of the thermostat 62 acts on the centre of spring 50. Movement of the disc 46 towards the disc 42 is limited by abutments in an annular recess 40. Openings 41, 43 in discs 42, 46 respectively allow the fluid level in the working chamber between them to remain constant no matter what the separation between them. In an alternative embodiment the wax thermostat is housed in a bulge in the wall 24 and the spring assembly shown is replaced by three circumferentially spaced spring straps. Cooling fins 18 are provided on the driven member.
Patent GB-544190-A (GB)
Title: Quinoline derivatives
IPC: C07D401/04
Filed: 1940-06-28
Abstract: 544,190. Quinolinederivatives. BASFORD, F. R., ROSE, F. L., and IMPERIAL OHEMICAL INDUSTRIES, Ltd. June 28, 1940, No. 11013. [Class 2 (iii)] Quinoline derivatives which are substituted in the benzene nucleus by a pyridyl residue and may also contain chloro, nitro, methyl and methoxy substituents in the same nucleus, are prepared by subjecting α-, #- or γ- aminophenylpyridines which may carry chloro, nitro, methyl or methoxy substituents in the phenyl radicle, but not in either position ortbo to the amino group, to a treatment with glycerol and an oxidizing agent according to the Skraup quinoline synthesis. The products possess therapeutic properties. The starting materials are obtained by reducing the corresponding nitrophenylpyridines, which are prepared by the process of Specification 518,886. According to the Examples, 6- α -pyridylquinoline is made by heating α - 4 -aminophenylpyridine with glycerol in the presence of sulphuric acid and arsenic oxide or m-nitrobenzenesulphonic acid; 6- #- and γ-pyridylquinolines are similarly prepared from #-and γ- 4-aminophenylpyridines respectively. A list is given of other products, together with the materials from which they are derived.
Patent GB-643691-A (GB)
Title: A process for coating surfaces
Inventor: CLEMENTS PETER GRAHAM
IPC: B05D1/18
Filed: 1948-04-21
Abstract: Exterior surfaces of articles are coated by applying powdered thermoplastic material to an external surface heated to a temperature high enough to sinter a layer of the material to the surface whereafter the article is reheated to fuse the material. The thermoplastic material may be applied by dipping or rolling the article in it.  The article may be heated in an oven, by a torch or taken hot from a previous process.  The final heating when using a torch should be on the uncoated side of the article. The cycle may be repeated to produce thicker coatings.  Specified thermoplastics are polythene, shellac, polyvinyl chloride and acetate, polystyrene, cellulose acetate-butyrate, polyamides, sulphur, chlorinated paraffin wax and that known under the Registered Trade Mark "Abril" wax. Pigments and anti-oxidants may be added.  Specifications 579,442, 585,395 and 643,539 are referred to.
Patent GB-616877-A (GB)
Title: Change speed mechanism for bicycle
IPC: B62M9/1242
Filed: 1946-04-10
Abstract: 616,877. Change-speed chain gear. JEANMOT, [nee FASQUE], G. April 10, 1946, No. 11057. Convention date, Nov. 25, 1942. [Class 80 (ii)] A carrier 16 for a chain -shifting jockeypulley 18 in a cycle change-speed gear of the multi-sprocket type, swings transversely of the cycle on equal parallel links 12, 13 on an upper arm 6, which, for chain-tensioning, swings longitudinally on a transverse pivot 3 on a fixed member 1, bolted at 2 to the cycle-frame, and is pressed in the chaintensioning direction by a helical torsion-spring on the pivot 3, one end 7 of the spring anchoring on the arm 6 whilst its other anchors in one of a series of notches 5 in the head of the pivot 3 to provide adjustment. The jockey-pulley carrier 16 is swung transversely to shift the chain on to differentsized sprockets on the cycle-hub by a single cable C, anchored to, and wrapping in an arcuate groove in one, 12, of the parallel links, the cable being opposed by a return-spring 21 acting on the other link 13, which has a screw stop 20 limiting inward movement. Chainguide flanges 17 are provided on the jockeypulley carrier 16.
Patent GB-550815-A (GB)
Title: Improvements in the preservation of rubber latex
IPC: C08C1/06
Filed: 1941-09-01
Abstract: 550,815. Preserving rubber latex. UNITED STATES RUBBER CO. Sept. 1, 1941, No. 11127. Convention date, Sept. 10, 1940. [Class 70]  Latex is preserved with less ammonia, e.g. 0.2 to 0.75 per cent., than is generally used, and with a nitroparaffin, or halogen substituted nitroparaffin germicide. The ammonia content of ammonia-preserved latex may be reduced by blowing air through the latex before adding the germicide. Other bases than ammonia, and sodium &c. salts of nitroparaffin &c. may be used. Examples of nitroparaffins are trichloro- or tribromonitromethane, or nitromethane, -ethane, -propane, or -butane, in amount 0.002 to 0.2 per cent. of the latex. An emulsifying agent, e.g. soap, may be used.
Patent GB-1518654-A (GB)
Title: Devices for effecting endo-oesophageal intubation
IPC: A61F2/04
Filed: 1977-03-16
Abstract: 1518654 Endo-oesophageal tubes L R CELESTIN 16 March 1977 11146/77 Heading A5R An endo-oesophageal tube comprises a tubular main part 10 having at or towards one end a resiliently deformable formation 14, preferably in the form of a frusto-conical flange, which opposes reverse movement of the tubular part after insertion through a stricture the tubular main part 10 and the formation 14 each being provided with a radioopaque marking, 16 and 18 respectively, which is preferably also visible. The tubular main part 10 of circular, oval or elliptical crosssection may be provided with a flexible funnel 11 at its upper end, preferably of oval or elliptical cross-section A helical reinforcing element 15 of nylon thread or wire may be embedded in the tubular wall.
Patent GB-459941-A (GB)
Title: An improvement in means for controlling variable mechanism
IPC: B23Q5/00
Filed: 1935-04-11
Abstract: 459,941. Lathes. SHAW, W., Ain Lea, Hillside Crescent, Newsome, near Huddersfield. April 11, 1935, No. 11197. [Class 83 (iii)] [See also Groups XXVI and XXIX] In Specification 435,029, [Group IX], apparatus is described, with reference to Figs. 2, 4 thereof, for regulating the taking up of material on to a beam, roller or the like, and comprising a shaft driven at a constant selected speed, means for imparting this constant speed to a second shaft having a fluid transmission mounted thereon, the said transmission having controlling valves and screw- and-nut mechanism whereby changes in the speed of the mechanism being controlled are caused to operate the valves for varying the transmission output speed, and the invention consists in the application of such apparatus to purposes other than the taking up of material on to a beam &c. In Fig. 1, a rotating workpiece 13 is operated upon by a tool 14 in a holder 15 adjustable by a screw 16 with handwheel 16<1>. A chain wheel 17 on this screw is connected to a wheel 19 on a screw 20 on which is threaded the boss of a fork 21 embracing a friction wheel 22 splined on a shaft 23 connected by a chain 25 to the wheel r<4> of the apparatus described in Specification 435,029, the constant-speed shaft and output gear of which are indicated at l and s<4> respectively. The wheel s<4> is geared to a shaft 27 on which is a wheel 29 connected to the shaft of the work-piece, and a wheel 32 connected to a shaft 35 carrying a friction disc 36. As the tool is fed towards the centre, the friction wheel also approaches the centre of disc 36 and is rotated more slowly and this reduction of speed is transmitted to wheel r' resulting in an increase of speed of the output gear s<4> and of the work-piece. In a modification, the varying pressure on the tool is utilized to vary the speed of rotation of the workpiece. The tool is mounted slidably in its holder and bears against a spring which also presses on a spindle carrying the driven member of a friction clutch. The wheel r<4> is driven from this clutch at a speed dependent upon the extent of gripping of the clutch members.
Patent GB-1299665-A (GB)
Title: Sensing and control mechanism for label dispenser
IPC: B65C9/18
Filed: 1970-03-09
Abstract: 1299665 Labelling machines MINNESOTA MINING & MFG CO 9 March 1970 [10 March 1969] 11234/70 Heading B8F The position of labels 7, prior to being stripped from a carrier tape 6 at an edge 11, is sensed by a star wheel 22 which is fast with a cam 28. A leaf spring 30 bears against the cam to bias the star wheel to positions in which its teeth 23 engage the leading edges of the labels. Rotation of the wheel by a label causes the cam 28 to actuate a lever 33 controlling a switch 34 which controls the feed of the tape. The tape may be fed over a bridge 18 to raise it above a guide plate 10 to allow the tape to flex and the star wheel to rotate, alternatively the plate 10 may be formed with a recess to allow for depression of the tape.
Patent GB-343806-A (GB)
Title: Improvement relating to frangible links for use in fire control devices
IPC: A62C35/60
Filed: 1930-04-09
Abstract: 343,806. Frangible links for firecontrol devices. MATHER & PLATT, Ltd. and ROBERTS, A., Park Works, Manchester. April 9, 1930, No. 11263. [Class 47 (ii).] A thermally-responsive link for controlling firedoors and other fire appliances, comprises separable members adapted to be connected to ties, and having parts which tend to move together but are prevented from doing so by a glass or like bulb containing a bursting charge of fluid and held compressively between the parts. As shown, Fig. 1, separable members a, b pivoting on knife-edges f, g have eyes c for connection to ties, for example on the door and a fixed part, and their free ends are held apart by a glass bulb d. In a modification, Fig. 3, the member b comprises arms pivoted together at hand outturned at the ends h<1> to separably engage the member a. In another modification, Fig. 5, the members comprise arms a, a<1> and b, b<1> with interengaging cupped ends. In another modification, Fig. 8, the members a, b have interengaging cups held from separation by the bulb d and a yoke b<2>. In another modification, Fig. 10, one member comprises scissors-like arms b, b<1> having jaws s, t which are held closed, by the bulb d, on a pin r forming part of the member a.
Patent GB-569494-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J25/12
Filed: 1942-08-12
Abstract: 569,494. Discharge devices. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Aug. 12, 1942, No. 11271. Convention date, Aug. 13, 1941. [Class 39 (i)] In a discharge device of the kind comprising one or more evacuated hollow resonators, such as 11, 12, traversed by an electron beam, and in which energy is fed into or received from a resonator by a loop coupling 32, extending through the outer wall 10 of the resonator, means are provided whereby the coupling may be adjusted exteriorly of the device without affecting the vacuum within the resonator. For this purpose the coupling, which may be in the form of a coaxial airspaced line having the end of its inner conductor 30, Fig. 2, formed into a loop 32 and connected to its outer conductor 29, is slidably mounted in a closed glass tube 25 which extends through the wall 10 of the resonator and which has an outer rim 23 sealed through a copper ring 19 to a nipple 17 which is welded in an aperture in the wall 10. The inner end of the tube 25 may be of quartz, being connected to the rim 23 by rings of graded glass. The coaxial line is secured to a cylindrical member 36 adjustably mounted on a nut 34 which screws on the nipple 17, so that by rotation of the nut 34 the coupling 32 may be adjusted. A pointer 45, co-operating with a scale 44 on the member 36 indicates the position of the coupling loop. The Specification as open to inspection under Sect. 91 comprises also a coupling in the form of a straight probe. This subject-matter does not appear in the Specification as accepted.
Patent GB-1496868-A (GB)
Title: High efficiency switching regulator
IPC: H02M3/155
Filed: 1976-03-22
Abstract: 1496868 Automatic voltage control BURROUGHS CORP 22 March 1976 [21 April 1975] 11397/76 Heading G3R A switching regulator arrangement includes at least two regulating circuits connected in parallel. Each circuit has a switching element, series inductor and a free-wheel or catch diode. The respective switching elements are turned on successively, each element being turned on only when the corresponding diode is blocked and the corresponding inductor is not storing energy. As shown in Fig. 5, a regulator arrangement for use in a regulated D.C. voltage supply, Fig. 1 (not shown), includes Darlington switching elements 61, 81, Schottky diodes 69, 89, and inductors 75, 95 forming two parallel regulating circuits between an unregulated voltage input 25 and an output  terminal 59 which is connected through a current limiting stage 103 to a regulated voltage output 37. The elements 61, 81 are turned on alternately in response to a clock circuit 123 comprising a multivibrator supplying 50 ns. negative pulses to a control circuit 121 including flip-flops and NAND gates, Fig. 6 (not shown). One of the flip-flops is a divide-by-two counter which ensures alternate switching. The voltage at output 37 is compared with a regulated reference voltage 111 in a differential amplifier circuit 107, Fig. 8 (not shown), normally producing a low level output signal. If the output voltage falls, the comparator circuit 107 produces a high level signal which prevents the operation of a flip-flop in the control circuit 121 so that one of the switching elements 61, 81 remains in an on condition for a longer period. The signal from the comparator circuit 107 can be over-ridden by a low level signal from the stage 103 if an excessive output current is detected by a further differential amplifier arrangement, Fig. 8. Such a signal causes immediate resetting of the appropriate flip-flop and blocks the switching elements 61, 81. By using parallel switching regulators, each inductor and diode has time to recover before the corresponding switching element is turned on again. Switching into a non-conducting inductor and a fully recovered diode eliminates power dissipation, noise, and transient production when switching on. In another embodiment, Fig. 12 (not shown), four parallel switching paths are used, ensuring time for each path to recover fully before switching on again, even at very high switching speeds.
Patent GB-182595-A (GB)
Title: Improvements in and relating to electric train-lighting apparatus
IPC: B61D43/00
Filed: 1921-04-20
Abstract: 182,595. Pitt, W. A. April 20, 1921. Reversing-gearing.-A train-lighting dynamo is driven by gearing which ensures constant direction of rotation of the dynamo. A spur-wheel on a car axle engages a wheel 3 fixed on a shaft 6 on which are carried loose sleeves 7, 8, having bevel-wheels 4, 5. The bevel-wheel 17 is fixed to a shaft 18 which drives the armature of the dynamo. Pins 11, 12 on the shaft 6 slide in inclined slots 13, 14 in the sleeves, so that one or other of the bevel-wheels 4, 5 is brought into mesh with the wheel 17 according to the direction of rotation of the shaft 6.
Patent GB-1373896-A (GB)
Title: Preparation of 238pu 160-2
IPC: G21H1/00
Filed: 1973-03-09
Abstract: 1373896 Plutonium compounds UNITED STATES ATOMIC ENERGY COMMISSION 9 March 1973 [28 March 1972] 11481/73 Heading G6R <SP>238</SP>Pu<SP>16</SP>O 2  is prepared by successively hydriding and dehydriding massive electrorefined <SP>238</SP>Pu to form a powder, oxidizing the powder with a mixture of H 2 <SP>16</SP>O and an inert gas at 580-610 C., and heating the resulting oxide to 700 C. under vacuum. The H 2 <SP>16</SP>O may be prepared by reaction of H 2  with N<SP>16</SP>O (prepared by distillation of NO) in the presence of a nickel catalyst. The plutonium oxide product has a low neutron emission rate and may be used as a heat source in artificial hearts or cardiac pacemakers.
Patent GB-704264-A (GB)
Title: Improvements in ionic crystal relay system
IPC: H01J29/14
Filed: 1951-05-16
Abstract: 704,264. Cathode-ray tubes. RAIBOURN, P. May 16, 1951 [July 8, 1950], No. 11486/51. Class 39(1) [Also in Group XL(b)] A cathode-ray tube for use in a signal transmission system, wherein the signal is transmitted as intensity modulations of a' beam of light or infra-red radiation 12, comprises an alkali or alkaliearth halide screen 14 which is irradiated by an electron beam modulated in accordance with the output of a signal generator 20, and grids 16 and 17 placed either side of the screen 14 and supplied from. unit 19 with a signal varying in accordance with that generated at 20. The signal applied to grids 16 and 17 assists in the restoration of the screen 14 transparency after the formation of opacity centres due to the action of the electron beam incident thereon. To obtain the desired operating temperature the screen is heated electrically through leads 15. Specifications 513,776 and 601,237 are referred to.
Patent GB-940873-A (GB)
Title: Electrophotographic material
IPC: C07C209/18
Filed: 1960-04-01
Abstract: Triphenylamine is made by reacting diphenylamine with iodobenzene in the presence of potassium carbonate and copper powder.  This method is also suitable for triphenylamines substituted (once or more) by amino, alkylamino, dialkylamino, acylamino, alkyl, alkoxy, chlorine, bromine, iodine, nitro or nitrile groups.  Examples are given. 4-Dimethylamino-triphenylamine is obtained from the 4-amino compound and dimethyl sulphate.
Patent GB-1487692-A (GB)
Title: Underground mine equipment
IPC: H02G9/00
Filed: 1975-03-20
Abstract: 1487692 Flexible cable conduit COAL INDUSTRY (PATENTS) Ltd 27 Feb 1976 [20 March 1975] 11619/75 Heading H2C [Also in Division F2] Protection for cables 8 and/or hoses 10 connected to mining machines traversing along a wall of an underground mine comprises at least one flexible elongated member 1 connected at one end to the machine and a plurality of elements 2 in series along the elongate member 1 to provide at least one corridor 6 for the cables and hoses, each element 2 comprising at least two members 12, 14. Each element 2 may have a through passage 4 for each elongate member 1 which may be constituted by wire ropes, cables or chains and the members 12, 14 may be pivotally connected by pins 16.
Patent GB-1300587-A (GB)
Title: Improvements in or relating to container detector and discharge mechanisms
IPC: B65B57/04
Filed: 1970-03-11
Abstract: 1300587 Labelling H J HEINZ CO Ltd S J W MEYRICK and R CRAIG 12 Nov 1970 [11 March 1970] 11686/70 Heading B8F [Also in Division G1] In order to reject cans bearing incorrectly positioned labels, they roll down an inclined track 19 having sensing stations with sensors controlling air valves producing jets of air blowing defectively labelled cans off the track. Two sensing stations are provided on incomplete number of revolutions of the cans apart, and each station has a pair of sensors 44, spaced apart so that they touch a can towards its upper and lower edges, and formed by springs which produce a signal should either touch uncovered metal. The sensors of the first station sweep across about half the periphery of a can, the rest of the periphery being swept at the second station by sensors 44a. If a can is incorrectly labelled by virtue of having a portion of label unattached to its surface and projecting outwardly therefrom, it is detected by means of a photo-electric cell and a light source at each station arranged so that correctly labelled cans pass beneath the light beam without interrupting it, whereas incorrectly labelled cans interrupt the beam to produce a signal. In either case a signal at a sensing station opens a valve at that station producing a jet of air deflecting the cans laterally off the track 19 and across an inclined plate 16 into a container 49.
Patent GB-377679-A (GB)
Title: An improved method for producing non-porous metal castings
IPC: C22B9/05
Filed: 1931-04-21
Abstract: A method of producing non-porous metal castings particularly from alloys containing magnesium consists in introducing hydride, for example hydride of silicon, boron, zirconium or antimony, together with hydrogen into the molten metal.  A flux, for example, magnesium fluoride, may also be added to the bath.