baber/WOPTO huggingface dataset:
Patent GB-906521-A (GB)
Title: Snap action mechanism
Inventor: FICHTER LUDWIG JOHANN
IPC: H01H5/02
Filed: 1960-04-25
Abstract: 906,521. Contact-members for switches. OAK MANUFACTURING CO. April 25, 1960, No. 14397/60. Class 38 (5). A changeover switch is provided with two permanent magnets 16, 17 to produce snap action in each direction. A resilient member 31 carrying a contact 33 for co-operation with fixed contacts 29 and 291 also carries an armature 34 and has an extension 36 lying between plates 43, 44 arranged as shown on a second resilient member 38. The member 38 has a central portion cut-out to permit it to move freely past the fixed contacts and the magnets, and it carries a roller 46 whereby it may be urged to the position shown dotted. During such motion it strains the resilient extension 36 until armature 34 snaps away from magnet 17 and is attracted to magnet 16. Instead of having lost motion between plates 43 and 44 as shown, the extension 36 may be directly fixed to the member 38, in which case it must be long enough and flexible enough to permit the necessary flexure between its tip and armature 34. Alternatively, the extension 36 may be rigid and coupled between plates 43 and 44 by means of two coil springs. If the strip 31 is of steel, the armature 34 may be dispensed with. The magnets 16 and 17 may be replaced by armatures and 34 may comprise the magnet.
Patent GB-145261-A (GB)
Abstract: 145,261. Wigginton, G. P. June 25, 1919. Post files; covers; locking-followers.-A holder and support for loose sheets comprises a fixed side or bottom 5, Figs. II. and V., a rear wall 6, end walls 7, and cover sections 8, 9, 10, hinged together, section 8 being hinged to the rear wall 6 at its outer edge, and section 10 forming the front of the holder. Guides 17 and 18 are arranged on the rear wall and cover section 8 to coact with notches in the sheets, and the holder is preferably of such dimensions that the sheets may be alined on the guides in off-set relation. A binding-member 20 is perforated at 21 to receive posts 19 and notched to receive the guide member. Section 9 is provided with holes 25 to accommodate clutch springs 22 on the binding-member which automatically secure the posts. This section is also provided with pins 26 to engage holes in the binding-member, thus preventing lateral movement thereof. An adjustable bottom 28 is adapted to rest flat on the member 5 or to be inclined on a tapered support 29 to facilitate fingering of the sheets and their transfer from support to holder. The adjustable bottom has openings 23<1> alined with holes 23 in the member 5 so that movement of the posts is not impeded. A support for the holder comprises a pair of V-shaped rests shown in Fig. X, and is designed to receive the hinged top sections in angularly-disposed relation. In a modification, the binding-member is extended to form the cover and also constitutes the bottom of the sheet support, a fixed end member with guide being formed integral with the V-shaped support.
Patent GB-221264-A (GB)
Title: Improvements in or relating to apparatus for use in making extracts, infusions, decoctions and the like
IPC: A47J31/057
Filed: 1923-06-04
Abstract: 221,264. Pouget, L. M. June 4, 1923. Infusing-machines.-In apparatus for making tea or coffee in which the water is forced on to the tea &c. by the pressure of the steam generated on boiling the water, the tea &c. is placed in a receptacle carried by the lid of the apparatus, and a whistle is provided to be sounded by the steam which escapes when the infusion is complete. The water is placed in a receptacle 1 from which it rises through a pipe 12 passing through the handle 13 of the apparatus to a nozzle B' in the cover 3. The cover 3 is continued downwards in a cylindrical portion 4 in which the coffee is placed between two perforated discs 5, 6, another perforated disc 7 holding the disc 6 in place, the cover being inverted to receive the discs and the coffee. A whistle 8 is mounted on the cover 3. The pipe 12 is made in two parts connected by a joint 11 and is furnished at the bottom with a dished plate P. In a modification adapted for making tea, the tea, instead of being enclosed between the plates 5, 6, is placed in a solid-bottomed cylindrical receptacle enclosing the extension 4 of the lid, the infusion being drawn off by a siphon.
Patent GB-938708-A (GB)
Title: Fuel cells
IPC: C25B11/06
Filed: 1962-04-16
Abstract: 938,708. Fuel cells. GENERAL ELECTRIC CO. April 16, 1962 [May 8, 1961], No. 14662/62. Class 53. A gaseous fuel cell in which a solid matrix including soaked aqueous electrolyte is in direct contact with a pair of electrodes, the electrodes are of active metal particles bonded by p.t.f.e. The matrix is an ion-exchange resin or a mat of fibre or fabric and the electrodes although they may be made by sintering a powdered mass, are preferably formed by coating a surface with a p.t.f.e. emulsion containing metal particles, sintering and then stripping from the surface. Alternatively, a cloth impregnated with p.t.f.e. may act as permanent support for the metal powder. Other resins may be substituted for p.t.f.e. with inferior results. Gas inlet 8 and oxygen inlet 16 communicate with chambers 9, 13 and the electrodes 2, 3 have constant grids 4, 5 on the side away from the solid matrix 1. Specification 894,530 is referred to.
Patent GB-1008642-A (GB)
Title: Alkenyl sodium compounds and derivatives thereof
IPC: C07F1/04
Filed: 1963-04-11
Abstract: In the process for preparing alkenyl sodium compounds by reacting at least one alkyl sodium compound with a non-terminal alkene containing at least 6 carbon atoms (see Division C2), any unmetalated excess of alkene, being a mixture of isomers of said alkene initially present, is recovered from the reaction mixture. The alkenyl sodium compounds so produced may be reacted with halobenzenes to produce alkylated benzenes.  Specification 1,008,643 is referred to.ALSO:The invention comprises alkenyl sodium compounds, having the sodium substituent in the 1- or 3-position in the alkenyl chain, which are prepared by reacting at least one alkyl sodium compound with a non-terminal alkene containing at least six carbon atoms at a temperature below 30 DEG  C., preferably between - 25 DEG  C, and + 20 DEG  C., to produce one or more sodium derivatives. The alkyl sodium compound may contain from 1 to 12 carbon atoms.  The non-terminal alkene preferably contains less than 25 carbon atoms, e.g. 2-, and 3-hexene, 2-dodecene, 5-dodecene or 11-tricosene. The reaction may be carried out in batch, semi-continuous or continuous fashion, preferably in the presence of a saturated hydrocarbon medium. The alkene is preferably used in molar excess, preferably at least 2 : 1, of the alkyl sodium compound. The unmetallated excess of alkene, being a mixture of isomers of the alkene initially present, may be recovered from the reaction medium.  The metallated derivatives can be contacted with electrophilic reagents to yield a mixture of 1-substituted and 3-substituted alkenyl derivatives.  With CO2, the resulting carbonated mixture may be acidified to yield a mixture of 1- and 3-substituted monocarboxylic acids.  The metallated derivatives can be subjected to other reactions with electrophilic reagents such as SO2 and SO3 to produce sulphinic and sulphonic acids respectively; with N-haloamines to produce amines; with epoxides to produce primary alcohols; with aldehydes to produce secondary alcohols; with ketones to produce tertiary alcohols; with a ,b -unsaturated esters to produce monomeric and polymeric condensation products.  The amines may be oxidized to form amine oxides. Example (1) relates to the reaction between 2-dodecene and amyl sodium, to give dodecenyl-sodium-3 and 2-dodecenyl-sodium-1, which on carbonation give 3-tridecenoic acid and a -vinyl undecanoic acid. The alkenyl-sodium mixture was also reacted with acetaldehyde to give 2-hydroxy-3-vinyldodecane and 2-hydroxy-4-tetradecene.  Reactions carried out as in Example (1) and the acids obtained using different alkenes are identified in Table II shown in Example (4). Specification 1,008,043 is referred to.
Patent GB-558345-A (GB)
Title: Protective circuits for rectifiers
IPC: H02M7/06
Filed: 1942-10-22
Abstract: 558,345. Rectifying A.C. current ; D.C. measuring arrangements. BRITISH THOMSONHOUSTON CO., Ltd., and DYSON, J. Oct. 22, 1942, No. 14820. [Class 38 (ii)] [Also in Group XXXVI] Relates to circuits comprising a rectifier 4 in series with an impedance 3 across which a substantial part of the applied A.C. voltage is normally dropped, e.g. a D.C. measuring arrangement as described in Specification 514,890, and consists in means for preventing the development of an over-voltage across the rectifier in the event of cessation of current due to disconnection of the load R. The means consist of a circuit in parallel with the load R comprising a resistance R1 and unidirectional conducting device 10. The resistance R1 is supplied with current from a transformer 7 and rectifier 8 such that the voltage drop thereacross is opposed to and exceeds that normally developed across resistance R under which condition current flow in the local circuit is prevented by the device 10. Should the voltage across the rectifier increase, however, due to disconnection of the load, to a value exceeding that across resistance R1, the latter provides an alternative path for the current and the voltage rise across the rectifier is limited. A choke may be connected in series with the device 10 to limit current which may flow under normal conditions due to differences in wave form in the voltages developed across the resistances R and R1. A modification suitable for conditions arising when the output terminals of two or more D.C. measuring circuits are connected in parallel to a common resistance is also described.
Patent GB-801391-A (GB)
Title: Method of and apparatus for producing creped flat material
IPC: B31F1/12
Filed: 1955-05-23
Abstract: 801,391. Creped stretched filter paper etc.; laminates. MULLER, P. A. May 23, 1955 [March 24, 1955], No. 14876/55. Addition to 796,679. Drawings to Specification. Classes 96 and 140. The invention of the parent Specification is modified in that different creping, embossing, stretching, or perforating treatments &c. are given to different longitudinal strips of the web. Some of these strips may be compressed, or roughened on at least one side. Differences in strength, absorptive and swelling capacity may result, and periodic differences in the longitudinal direction may recur in less than 1 cm. There may be a metallic surface, e.g. of foil on at least one side, as by the use of metallized paper, or there may be a fleece covering, e.g. of cotton wadding, or rayon, or a covering or interlayer of a framed carbamide resin, latex or neoprene, or of flakes made from a foamed material.
Patent GB-108592-A (GB)
Title: Improvements in or relating to Tobacco Smoking Pipes, Cigar and Cigarette Holders.
Inventor: SUTTON PATRICK JOSEPH
IPC: A24F1/00
Filed: 1916-10-20
Abstract: 108,592. Sutton, P. J. Oct. 20, 1916. Tobacco pipes and cigar and cigarette holders.- The mouth-piece a is formed with a grooved reduced end c and a perforated flange b, and a cap f, slid or screwed on the end c, is formed with recesses h registering with the grooves and perforations in the end and flange. Moisture and dust collects in the space g in the cap.
Patent GB-686651-A (GB)
Title: Process and apparatus for continuous milling of plastic material
IPC: B29B7/52
Filed: 1951-06-25
Abstract: 686,651. Mixing appliances. UNION CARBIDE & CARBON CORPORATION. June 25, 1951 [June 29, 1950], No. 15035/51. -Class 86 [Also in Group V] A process for continuously mixing normally solid plastic material in a roller mill having smooth surfaced roller means, consists in introducing the material into a zone which terminates in a milling clearance defined by the roller means, in an amount larger than that which can completely pass through the milling clearance, thereby creating a pressure which causes discharge of material from the said zone. In the embodiment of Fig. 1, normally solid plastic material is introduced through the top of a casing 3 and is carried by rotation of a smooth surfaced roll 1 eccentrically mounted in the casing, into a convergent zone 5 in an amount larger than that which can pass through a milling clearance space 7 whereby pressure is created in the zone 5 causing discharge of material from the zone 5 through the bottom of the casing. In a modification, Figs. 2 and 4, a pair of oppositely rotating smooth surfaced rolls 11, 12 carry materials introduced at 42 into converging entrances 34, 35 terminating in milling clearances formed between the rolls 11, 12 and a saddle-shaped member 32, and through the bite 31 between the rolls. The materials pass into the entrances 34, 35 in an amount larger than can completely pass through the bite 31 whereby pressure is created in the plastic contained in the zone 33 between the bite 31 and plate 32 causing discharge of material from the zone 33 at outlet 45. Modifying agents are fed under pressure into the zone 33 through an inlet passageway 43 and volatile material is removed at 47. The rolls and casing may be cored and jacketed to receive heating or cooling fluid. The outlet 45 may be in the form of an extrusion die for imparting a desired shape to the plastic as it is discharged. The apparatus may be used also for the milling of paint pigments providing the milling clearance is suitably restricted.
Patent GB-1345644-A (GB)
Title: Femoral fixation devices
IPC: A61B17/74
Filed: 1972-03-30
Abstract: 1345644 Femoral fixation device G BOUSQUET and A RAMBERT 30 March 1972 [2 April 1971] 15052/72 Heading A5R A femoral fixation device comprises a pin 4 for insertion into the head 6 of the femur, an elongate plate 2 for attachment to the shaft 3 of the femur and a lockable hinge joint connecting the pin and the plate, the pivotal axis of the joint being at right angles to the axes of the pin and the plate. The hinge joint may comprise two flanges 14, 15 with notched opposing faces and a screw 16 passing through a bore in one flange 14 and engaged in a threaded bore in the other flange 15. The pin 4 may comprise an internally screw threaded tubular portion 4a into which is screwed a rod 4b carrying a point 4c. The free end of the tubular portion 4a may be provided with one or more longitudinal slots 9 and may terminate in a male truncated cone 11 which male truncated cone is engaged by a female truncated cone on a lock nut 8. The face of the plate 2 which contacts the femur may be concave, and the length of the plate may be increased by adding extension pieces, Figs. 5 and 6 (not shown), which engage the plate by a dovetail groove. Fixing holes in the plate are countersunk to receive screws. The pin 4 may be replaced by a two pronged fork (18), Fig. 4 (not shown), when the device is used after osteotomy.
Patent GB-1493152-A (GB)
Title: Automatic electric pilot
IPC: G05D1/02
Filed: 1975-04-11
Abstract: 1493152 Automatic course control ANSCHUTZ & CO GmbH 11 April 1975 [18 April 1974] 15085/75 Heading G3R In an autopilot for a rudder steered craft e.g. a ship, the rudder is controlled at least at the beginning of a change of course operation by the sum of a course error signal and a negative signal of decreasing magnitude. As shown, for use in a ship, when the course is to be changed, switch 22, Fig. 2, is closed and capacitor 26 in auxiliary circuit 20 charges up from the course error UE and discharges at a rate determined by variable resistor 28, to form a signal Us. This signal is subtracted by operational amplifier 18 from the error signal UE, the resultant UA being used to control the position of the ship's rudder, using an averaging circuit with a dead zone and a PID controller. The system is such that the rudder is altered slowly and at a rate irrespective of the desired change in course, with minimal loss of the ship's forward speed. In alternatives, Figs. 4 and 5 (not shown), the signal Us may have different slopes, each produced by a selected one of a plurality of auxiliary circuits 20, or by selecting different values of capacitor 26 in a single auxiliary circuit. The actual ship's course may be measured by a gyro-compass.
Patent GB-1059651-A (GB)
Title: A profile finishing machine for shoe soles
IPC: A43D8/36
Filed: 1964-04-13
Abstract: 1,059,651. Trimming shoe soles. A. BRUGGI, [trading as MAISON BRUGGI ALBERTO]. April 13. 1964, No. 15089/64. Heading B4B. A machine for finishing the profile of shoe soles comprises a milling cutter 24, Fig. 5, guided by a roller 25 which slides on and is guided by the side of a template 12 of the finished sole. As described, soles (14, Fig. 1) are stacked in a magazine (15) and delivered singly by a feeder (50) actuated by a reciprocatory, hydraulic piston - andcylinder arrangement (56, 13) between an upper plate (31, Fig. 3) and the template (12), which are supported on shafts (22, 32), the latter shaft being movable axially by an hydraulic device. Each sole (14) is centred, prior to finishing, by pivoted grippers (16 . . . 19, Fig. 4) having rollers (20) and controlled by arms (34, 35) secured to an arm (33) operated by a two-way hydraulic device. An hydraulic cylinder and piston 29, 60, Fig. 5, via an arm 42 moves a support arm 23 for a motor 46 which belt-drives the cutter and coaxial follower roller 25 towards and away from the sole 14 at the start and finish of a trimming operation, and presses the cutter against the sole, and the roller 25 against the template 12. The depth of cut is adjustable by a screw 30. A further motor (62, Fig. 3) rotates the shaft (22) to which the upper plate (31) is secured, this rotation being imparted to the workpiece and the template (12) and its shaft (32). In order to effect an even feed of the workpiece to the cutter there is provided an arm 28 including a roller 51, which slides in a guide-way formed in a cam 11 coupled to the upper shaft (22) of the machine. The arm 28 is coupled to the arm 23 via arms 52, 55 and 44 so that the cutter 24 is moved in accordance with the movement of the roller 51. A punch (not shown) may be provided on the plate (31) or template 12 to produce a sole-size indication on the workpiece.
Patent GB-1325617-A (GB)
Title: Photo-sensitive polymers process for producing same and compositi ons containing said polymers
IPC: H05K3/00
Filed: 1971-05-14
Abstract: 1325617 Photosensitive polymers; polyvinyl alcohol derivatives FUJI CHEMICALS INDUSTRIAL CO Ltd 14 May 1971 [15 May 1970] 15095/71 Heading C3P [Also in Division G2] Photosensitive film-forming polymers contain light sensitive azido or cinnamate groups, and phenolic hydroxy groups, are soluble in aqueous alkali and are rendered insoluble on exposure to light, and contain recurring units selected from where R is H, -OH, -COOH, alkyl, alkoxyl, aryl, nitro, amino or halogen. The polymers may be obtained by reacting polyvinyl alcohol with (a) an aromatic aldehyde, a carboxylic acid chloride or a sulphonic acid chloride containing the necessary azido or cinnamate group and then with (b) an aromatic aldehyde, a carboxylic acid chloride or a sulphonic acid chloride containing a phenolic hydroxy group or reacting polyvinyl alcohol with (b) and then (a), or simultaneously with a mixture of (a) and (b). Reactants used in various combinations in the examples, together with polyvinyl-alcohol are, p-azidobenzoyl chloride, p-azidobenzaldehyde, p-hydroxy benzaldehyde, salicyloyl chloride, cinnamoyl chloride, vanillin (an aldehyde), mnitro cinnamoyl chloride, p-amino salicyloyl chloride, p-hydroxybenzene sulphochloride and p - azidobenzene sulphochloride. The polymers are dissolved in ethyleneglycol monoethyl ether and sensitizers such as 1,2-benzanthraquinone, 5-nitroacenaphthene and 2-nitrofluorene are added. These solutions are coated on substrates such as aluminium, a steel/copper/chrome trimetal plate, polyethyleneterephthalate film, zinc, and copper clad epoxy resin/fibreglass board, exposed image wise to light such as U.V. and the unexposed portions dissolved away with dilute alkaline solutions to produce photoresists and printing plates and printed circuit boards.
Patent GB-515024-A (GB)
Title: Improvements in suspension devices for electric cables or flexible pipes or tubes
IPC: H02G11/00
Filed: 1938-05-21
Abstract: 515,024. Supporting pipes. COLLINS, G. H., and COLLINS, H. F. May 21, 1938, No. 15197 [Class 99 (ii)] [Also in Group XXXVI] A suspension device for a flexible pipe 5, Fig. 2, comprises a spring 9 attached to a ceiling or other support by a hook 10 and carrying at its lower end a plate 8, Figs. 2 and 5, having a slot 12 through which a loop in the pipe is passed and then bent back over the edge of the plate into slots 13 in which the loop is releasably anchored. In a modified construction the plate has key-hole slots 20, Fig. 4, in which bends in the pipe are anchored.
Patent GB-221850-A (GB)
Title: Improvements in or relating to the rectification of alternating-current
IPC: H02M1/14
Filed: 1923-06-12
Abstract: 221,850. Robinson, E. Y. June 12, 1923. Filter circuits. - In arrangements for rectifying single or polyphase currents by means of thermionic mercury-vapour or other rectifiers, one or more devices creating back electromotive forces substantially 180‹ out of phase with the alternating components of the output current are connected in series in the output circuit. In one arrangement, Fig. 1, oscillatory circuits 6, of low decrement, tuned to the third, sixth, and ninth harmonics are connected between the cathodes 5 and one of the output terminals 7 of a three-phase half-wave thermionic rectifier, a condenser 8 being connected across the terminals 7 to carry the exciting currents of the circuits 6 when the rectifier is unloaded. In another arrangement, Fig. 3, three-phase current is completely rectified by means of a transformer with a star-connected six-phase secondary winding 17 and two sets of thermionic valves 18, 19, each set being connected to the output circuit through tuned oscillatory circuits 21, 22. Circuits 24, tuned to the same frequencies as the circuits 21, 22, are connected in parallel with the load, and a small choking-coil 26 may be inserted in series with the load to eliminate variations due to the voltage drop across the circuits 24 and to higher harmonics not dealt with by the circuits 21, 22. The oscillatory circuits may be inductively coupled to the output circuit instead of being directly connected therein. Specifications 148,129, [Class 38 (ii), Electric currents, Converting &c.], and 209,212 are referred to.
Patent GB-1499193-A (GB)
Title: Indolino-spiropyran compounds useful as colour formers
IPC: C08L33/00
Filed: 1975-04-15
Abstract: 1499193 Indolino-spiropyran compounds HODOGAYA CHEMICAL CO Ltd 15 April 1975 [17 April 1974] 15374/75 Heading C2C Novel indolino-spiropyran compounds of the formula wherein R 1  is an alkyl group; R 2  is a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, a cyano group or a phenyl group; R 3  is an alkyl or benzyl group; R 4  is a benzyl group or a substituted or unsubstituted phenyl group wherein the substituent is an alkyl group; said alkyl groups and the alkyl moiety of said alkoxy group having 1 to 4 carbon atoms, are prepared by reacting an indoline derivative of the formula with a salicylaldehyde derivative of the formula The novel compounds may be used as colour formers.
Patent GB-894199-A (GB)
Title: Improvements in or relating to alloys for rupture discs
IPC: C22C5/00
Filed: 1959-05-05
Abstract: A rupture disc for a fluid container is made of an alloy consisting of (by weight) more than 99% to 99,9% commercially pure Au, Ag or Pt containing as impurity at least one of Ir, Pd, Rh, Ru, Cu, Fe, Ni, Mn, Ca, Pb, Sn, Zn, Sb, Ag, Au, Pt and 0,1% to less than 1% of an additive selected from the above list of impurity metals and being different from the base metal and at least one of the impurities. The additive is present in an amount greater than the total impurity content.