baber/WOPTO huggingface dataset:
Patent GB-462650-A (GB)
Title: Carboxylic acid amides derived from aza compounds
IPC: C07D239/70
Filed: 1935-06-11
Abstract: Carboxylic acid amides derived from aza compounds are prepared by condensing esters of enolizable keto-carboxylic acids of monoaza compounds, the aza nitrogen atom of which is in a six-membered ring and which contain no other hetero atom besides nitrogen, with compounds containing at least one reactive hydrogen atom attached to nitrogen.  The acid-esters used as starting materials correspond to the formul  <FORM:0462650/IV/1> wherein R is the residue of a monaza compound as specified above, R<1> is hydrogen or an alkyl group and X is an esterified carboxylic acid group.  Compounds of which R is the residue, which are mentioned are azanaphthalenes, azaphenanthrenes (cf. Specification 451,932) azanthracenes, azatriphenylenes, (prepared by a Skraup synthesis from 9- or 10-aminophenanthrenes), azacarbazoles (prepared by dehydrating by means of copper at elevated temperatures the hexahydrocarbazoles described in Specification 360,027) and azabenzanthracenes (prepared by treating pyridinoanthraquinones with reducing agents).  The enolisable keto-carboxylic acid esters thereof may be prepared from the amino compounds by diazotizing and a Sandmeyer replacement to a cyano group, saponifying, esterifying and condensing the carboxylic acid ester with the sodium compound of acetoacetic acid ethyl ester. Those esters wherein R<1> is alkyl are prepared by condensing the alkali metal compounds of those esters wherein R<1> is hydrogen with alkyl halides.  In examples: 6-quinolinoyl acetic acid ester (prepared by condensing quinoline-6-carboxylic acid ester with acetic acid ethyl ester in presence of sodium ethylate and boiling benzene) is condensed with a -naphthylamine, 4-chloro-2.5-dimethoxyaniline, methylamine, ethanolamine, butylamines, octodecylamines, octodecenylamines, cyclohexylamines, aralkylamines such as phenylethylamine, tetrahydroazanaphthalene or 2-aminopyridine. Reference is also made to the condensation of pyridinoyl-acetic ester (prepared by condensing nicotinic acid ethyl ester with acetoacetic ester in presence of alkali) with 10-amino-4-azaphenanthrene or 5-amino-2-azaphenanthrene, and of quinolinoyl-5.8-bis-acetic ester or pyridinoyl-3.5-bis-acetic ester (prepared by condensing the corresponding acids with acetoacetic ester in presence of alkali) with 3-, 5-, 6-, 7-, 8-, 9-, or 10-amino-4-azaphenanthrenes, 5-, 6- or 8-amino-1-azaphenanthrenes or amino-2-azaphenanthrene (prepared from sulphonated 2-azaphenanthrene by first converting the sulpho group to hydroxy and replacing the latter by the amino group).
Patent GB-816213-A (GB)
Title: Improvements in or relating to ultrasonic machining apparatus
Inventor: MURRAY WILLIAM CAMPBELL
IPC: B24B1/04
Filed: 1955-02-07
Abstract: 816,213. Ultrasonic machining. MULLARD RADIO VALVE CO. Ltd. Feb. 6, 1956 [Feb. 7, 1955], No. 3565/55. Class 60. In ultrasonic machining apparatus of the kind in which a transducer, e.g. of the magnetostriction type, oscillates a drilling tool along its longitudinal axis, either directly or through a coupling bar or velocity transformer to which the tool is attached, the driving member has a tapered socket for the reception of a mating tapered shank on the tool, the mating surfaces being of such length, angle of taper and surface finish that the tool is detachably securable in the member with mechanised security and good acoustic coupling. The included angle of taper may be between three and five degrees, the length of the mating portions between five and eight times the diameter of the small end of the tapered tool shank and the surface finish a ground finish the irregularities of which are not greater than one tenth the amplitude of the tool when in use. The interference fit due to the taper may, particularly when a velocity transformer is used, be supplemented by a small degree of shrink fit; this may be accomplished either by warming the socket or by cooling the tool shank e.g. by immersing it in " dry ice." To facilitate the disengagement of the tool, a transverse aperture may be provided in the driving member so disposed that a tapered drift inserted in the aperture presses on the end of the tool shank. Alternatively, the tool may be formed below the tapered shank with a radial flange engageable by a forked lever.
Patent GB-114013-A (GB)
Title: Improvements in and relating to the Ignition Apparatus of Sub-marine Mines.
Inventor: WILLIAMS SIDNEY JAMES
IPC: F42B22/02
Filed: 1917-03-12
Abstract: 114,013. Williams, S. J. March 12, 1917. Mines, marine.-According to the invention, the firing device comprises a horseshoe magnet 17 with intermediate pole-pieces 18 holding an armature 20 against the action of a spring 22. When the projecting ends 16 of the magnet are bridged over by contact with a ship or mine, the armature is moved by its spring and closes the firing circuit. In the form here shown, the armature rotates; in a modification it moves axially. A switch is provided for disarming the firing-circuit when the mine is being handled.
Patent GB-783490-A (GB)
Title: Cone brake assembly
IPC: F16D49/00
Filed: 1956-02-06
Abstract: 783,490. External shoe-drum brakes. ROCKWELL SPRING & AXLE CO. Feb. 6, 1956 [Feb. 28, 1955], No. 3595/56. Class 103 (1). An external shoe-drum brake comprises a housing 18 having substantially flat parallel interior surfaces 42 and 43 adapted to guide the radial movement of a guide shoe 14 having secured to it friction-blocks 37 and 38 with inclined friction surfaces adapted to engage a V-grooved brake drum 12. Application of the brake is by rotation of a cam 17 maintained in abutment with the shoe 14 at all times by springs 20. The shoe 14 has a small amount of circumferential float but abuts on surface 42 or 43 according to the direction of drum rotation. Fig. 6 shows an alternative embodiment in which operation is by a fluid pressure piston and cylinder 67, 70 and thrust-rod 63, the released position of the piston being adjustable by a screw 75.
Patent GB-345032-A (GB)
Title: Improvements in or relating to control systems for electrical circuit interrupters
IPC: H01H50/24
Filed: 1930-02-03
Abstract: 345,032. Protective cut-out arrangements. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Read, E. K. ; 353,. Avenue E, Forest Hills, Wilkinsburg, Pennsylvania, U.S.A.) Feb. 3, 1930, No. 3641. Convention date, Feb. 4, 1929. [Class 38 (v).] Electromagnetic switches.-Acircuitbreaker is associated with a control device for closing it, through the intermediary of a contactor switch, which, on actuation of the control device, is momentarily closed to effect the closure of the interrupter. The contactor is thereafter maintained open to prevent any subsequent closing operation of the interrupter being effected so long as the control device is so actuated, so avoiding repeated opening and closing of the interrupter. The contactor comprises an E-shaped core having an upper limb 10 of large cross section, a middle limb 14 on which a common armature 13 is pivoted, and a lower limb 9 of small cross section constituted by a fixing stud. Similar coils 11, 12 are placed on the limbs 10, 9 respectively, and secured by the screws 25, the coil 11 being further secured by a nut 27 and a cap 28, both on the stud 9. A pair of fixed contacts 21 in series with blow-out coils 4 in arc shoots, are engaged by spring-controlled contacts 18 which are pivoted to the armature 13 and electrically connected by a shunt 19. When it is desired to close the switch 32, Fig. 3, a pressbutton or other control 39 is actuated to connect coils 11, 12 in parallel across the supply 33, 34. Owing to the lower reluctance of the limb 10, the coil 11 attracts the armature 13, thereby closing contacts 18, 21, and energizing the closing coil 31. Just prior to the fully-closed position, a switch 38 short-circuits the coil 11, allowing the spring 16 to move the armature 13 back to its neutral position to de-energize the coil 31, the breaker 32 being latched closed. The coil 12 then attracts the armature and holds it over so long as 39 is actuated, so that even if the switch 32 is immediately tripped open, the coil 11 is powerless to reclose it. A modification (Fig 4, not shown) has the coils 11, 12 in series, and a further modification (Fig. 5, not shown) has a coil in parallel with the trip coil acting in opposition to the coil 11, so that if the breaker fails to latch in, its opening will not be delayed in the event of a faulty condition arising.
Patent GB-617610-A (GB)
Title: Improvements in the impregnation or coating of fibres or fabrics
IPC: D06M13/402
Filed: 1946-02-06
Abstract: A molten compound of the general formula R1-CO-NH-R2-R3, wherein R1 is a saturated or unsaturated aliphatic radical having at least 8 carbon atoms, R2 is an alkylene or arylene radical, R3 is hydrogen when R2 is arylene, or the group-NH-CO-R4 (where R4 is a saturated or unsaturated aliphatic radical having at least 8 carbon atoms, or an aryl radical) when R2 is alkylene or arylene, is applied as a coating to surfaces such as paper cups, plywood, chip board by dipping, spraying, brushing, or spreading by doctor knife.  The compounds may be distearic-ethylene diamide, naphthenic - stearic - ethylene diamide, oleic-stearic-meta-phenylene diamide, stearic anilide, stearic-alpha-naphthalide, stearic-beta-naphthalide, oleic - alpha - naphthalide, benzoic-stearic-ethylene diamide, benzoic-stearic-paraphenylene diamide, benzoic-oleic ethylene diamide, di-lauric-meta phenylene diamide, oleic-lauric - para - phenylene diamide, di - stearic benzidide.ALSO:Threads such as cotton and silk are made resistant to heat and moisture by coating and/or impregnating with a compound of the general formula R1-CO-NH-R2-R3, wherein R1 is a saturated or unsaturated aliphatic radical having at least 8 carbon atoms, R2 is an alkylene or arylene radical, R3 is hydrogen when R2 is arylene, or the group -NH-CO-R4 (where R4 is a saturated or unsaturated aliphatic radical having at least 8 carbon atoms or an aryl radical) when R2 is alkylene or arylene.  The compounds may be distearic-ethylenediamide, naphthenic stearic ethylene diamide, oleic stearic meta-phenylene diamide, stearic anilide, stearic-alpha-naphthalide, stearic-betanaphthalide, oleic-alpha-naphthalide, benzoic-stearic-ethylene-diamide, benzoic-stearic-paraphenylene diamide, benzoic-oleic ethylene diamide, di-lauric-meta-phenylene diamide, oleiclauric-para-phenylene diamide, di-stearic-benzidide.
Patent GB-469829-A (GB)
Title: Improvements in or relating to loose-leaf holders or the like
IPC: B42F13/02
Filed: 1936-02-06
Abstract: 469,829. Loose-leaf binders. SPIERS, W. W. Feb. 6, 1936, No. 3698. [Class 146 (i)] In a loose-leaf holder or the like comprising clamping-members adapted to be held together by flexible members, such as cords, secured to one clamping-member and passing through the leaves or the like, and adapted to be secured to a second clamping-member, by the flexible members being passed through holes in the latter and being held in position by collars on the flexible members engaging recesses near the ends of the clamping-member, the retaining means on the top clamping- member are sufficiently resilient to grip the collars, and the recesses are undercut for the same purpose. The bottom clamping-member comprises a strip of wood b, Fig. 2, to which is secured a metal strip e ; the cords n are knotted at the end o and may carry a washer p over the knot, and are retained within holes f in the strip b by smaller holes f in the strip r. The upper clamping-member comprises a shorter wood strip a, and a metal strip g, and to the strip a are secured springy metal members h, provided with slots i and one or more spherically undercut recesses j. The cords n are threaded through the loose leaves c, and one or more collars q fixed on the cords near their ends are engaged with one or more of the recesses j. A metal sleeve r, Fig. 1, is fastened to the free end of each cord by forcing a spike t down the centre of the cord inside the sleeve ; the spike t may be used to perforate the loose leaves, scores on the members h being used to indicate the spacing. Aligning flanges u may be secured to the bar b and engaged by guides on the bar a ; or slotted back members may be arranged to be engaged by guides on the bar a.
Patent GB-1363825-A (GB)
Title: Motor vehicle with an automatic seat belt
IPC: B60R22/04
Filed: 1973-01-25
Abstract: 1363825 Vehicle safety harness FORD MOTOR CO Ltd 25 Jan 1973 [1 Feb 1972] 3707/73 Heading A3V A motor vehicle includes a seat belt 3 having ends 1, 2 secured to the top and bottom of a seat 4 along the vehicle centreline, the belt 3 passing through an eye 5 attached to the free end of a belt 6 which extends from a reel 7 fixed to the lower rear carrier of the adjacent door 8, the free end of the belt 6 being sewn to one end of a drawbelt 9 wound on a take-up reel 10 at the forward end of the door 8, and a drive mechanism being coupled between the vehicle body and the door 8 such that the reel 10 is wound as the door is opened to wind in the drawbelt 9 and pull the belt 3 away from a seat occupant and to unwind the drawbelt 9 as the door is closed allowing the reel 7 to tension the belt 3 about an occupant. A bolt 11 on the door 8 engages a plate 12 on the door sill 13 when the door is closed to strengthen the mounting of the reel 7. The drive mechanism for the drawbelt reel 10 comprises a toothed rack 17 articulated at one end 18 to the door pillar 19. The teeth 20 of the rack mesh with a pinion of a step-up gear set which drives the reel 10, a spring clip 22 holding the rack and pinion in engagement. The length of the toothing on the rack is such that the downbelt 9 will be full reeled in by a door opening movement of about 40% of the total, and thereafter the pinion is locked by frictional sliding engagement with a section 21 of the rack 17. The rack may also serve as a door stay if required.
Patent GB-123419-A (GB)
Title: Improvements in or relating to Sextants.
Inventor: BAKER THOMAS YEOMANS
Filed: 1918-03-04
Abstract: 123,419. Baker, T. Y. March 4, 1918. Sextants. - Consists in using, as the horizon glass of a sextant, a prism enabling the instrument to be used for an increased range of angles without necessitating a greater distance between the telescope objective and the horizon glass to obviate obstruction. The rays 1, 2, 3 from the index mirror fall upon the base AB of a prism ABC having angles of about 30, 30, and 120 degrees, and after three total reflexions are directed to the object glass of the telescope T. The base is approximately at 85 degrees to the axis of the telescope. Rays from the horizon pass directly into the telescope, the thickness of the prism as measured from the face of the sextant limb being less than the diameter of the object-glass.
Patent GB-575549-A (GB)
Title: Process for vulcanising neoprene and products thereof
IPC: C08K5/098
Filed: 1944-03-01
Abstract: The premature vulcanisation of polymerised chlorobutadiene or of copolymers containing chloro-butadiene is retarded by adding up to 10 per cent (preferably from 0.50-4.0 per cent) of a metallic or ammonium salt of an organic monocarboxylic acid which acid has a dissociation constant less than 1.0 x 10-3.  The acids may be formic, acetic, propionic, butyric, valeric, capric, heptoic, pelargionic, lauric, stearic, crotonic, oleic, propiolic, sorbic, linoleic, glycollic, lactic, b -hydroxypropionic and caprylic, and the aromatic acids of the benzene and naphthalene series such as a - and b -naphthoic and benzoic acids; those unsubstituted aliphatic acids that contain only C and H in the alkyl chain and containing 1-7 carbon atoms being especially suitable.  The metals may be alkali metals such as sodium or potassium, zinc, iron, lead, magnesium, manganese, cobalt, barium, aluminium, vanadium and calcium.  Examples are given illustrating the retarding action of such salts on the vulcanisation of mixes containing different types of neoprene and with various types of accelerators such as mild (p.phenylphenol), strong (the di-o-tolyguanidine salt of dicatechol borate), or ultra (catechol), or with mixtures of such accelerators either with themselves or with other accelerators such as pyrogallol, hexamethylene tetramine, salicylic acid, b -naphthoquinone or p.amino phenol.  Other substances which may be added are extra light calcined magnesia, channel carbon black, zinc oxide, phenyl a -naphthylamine, stearic acid, wood rosin and sulphur. Specifications 517,125 and 529,839 are referred to.
Patent GB-1469226-A (GB)
Title: Process for the preparation of 2-2-thienyl-ethylamine and  derivatives thereof
IPC: C07D333/20
Filed: 1976-01-30
Abstract: 1469226 2-(2-Thienyl)-ethylamine and derivatives thereof PARCOR 30 Jan 1976 [31 Jan 1975] 03849/76 Heading C2C Compounds of Formula I in which R 1  and R 2  are each hydrogen, C 1 -C 4  alkyl or optionally substituted phenyl, are prepared by aminating a compound of formula in which R 3  is an optionally substituted alkyl, aryl or aralkyl group, either directly with ammonia, or indirectly by first preparing the compound of formula by reaction of the compound of Formula I with phthalimide, followed by transamination with an amine or hydrazine hydrate.
Patent GB-1424864-A (GB)
Title: Method and apapratus for degassing viscous liquids
IPC: B29C48/76
Filed: 1973-01-25
Abstract: 1424864 Degassing viscous liquids CIBAGEIGY AG 25 Jan 1973 [25 Jan 1972] 3874/73 Heading B1M Viscous liquid to be degassed passes from reservoir 3 via conduit 2 through an apertured partition 50 to liberate gas to form bubbles in the liquid, and then passes to gas tight vessel 1 maintained at a reduced pressure by vacuum pump 15 where it is subjected to ultrasonic vibrations from oscillators 11 e.g. operated piezoelectrically or by magnetostriction. The aperture in the partition is preferably 1/5 - 1/100 of the cross sectional area of the stream of liquid measured directly infront of the partition so that the flow of the liquid through the aperture is 3-10 metres per second. Nozzle 5 may be of the same diameter as conduit 2.
Patent GB-953818-A (GB)
Title: Improvements in or relating to bladed rotors for fluid flow machines
Inventor: STEEL THOMAS
IPC: F01D5/06
Filed: 1962-02-01
Abstract: 953,818. Gas turbine rotors. ROLLS-ROYCE Ltd. Feb. 1, 1962, No. 3972/62. Heading F1T. A compressor rotor comprises alternately arranged blade carrying discs and spacer rings positioned between end plates connected to shafting such that neither the discs nor rings are in direct contact with the shafting, the rings abutting the adjacent discs and being connected radially inwardly to a rigid connection between the adjacent discs, each end plate being secured to its adjacent disc inwardly of the periphery of the disc. End plates 14, 15 of an axial flow gas turbine compressor are carried on stub shafting 16 and bolted at 19, 20 to discs 18 abutting spacer rings 23 having radial flanges 24 connected to rings 25 welded at 26 to projections 27 on the discs 18. Flanges 28 on the rings 25 are also bolted to the discs 18 at 19, 19a, 20. An extra disc 34 may be mounted upstream of plate 14 by a ring 37 having no direct connection with the spacer 38.
Patent GB-427995-A (GB)
Title: Improvements in and relating to flanged joints for pipes and like fluid containers
IPC: F16L23/24
Filed: 1934-02-07
Abstract: 427,995. Pipe &c. flanges. BAILEY, R. W., 20, Grange Avenue, Hale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Feb. 7, 1934, No. 4092. [Class 99 (ii)] A loose jointing flange 4, for a steam pipe &c. 1 and which is adapted to abut against a flange 2 on the end of the said pipe and to be bolted to a like flange on an adjacent pipe, is thermally connected at its side remote from the flange 2 to the wall of the pipe by a series of copper &c., strips 7. The strips 7 are secured to the pipe by a circumferented metal band or strap 9, and to the jointing flange by bolts 8 or by a metal band when a T-section jointing flange is used. In a modification the flange 4 is recessed at 14 to receive a corrugated conducting ring 15 adapted to abut against the walls of the recess and pipe. Heat insulating material 11, e.g. a nest of metal plates the surfaces of which are preferably oxidized, may be interposed between the flanges 2, 4.
Patent GB-116063-A (GB)
Title: Improvements in and connected with the Manufacture of Firelighters and Apparatus therefor.
Inventor: PETTIT CHARLES JOHN
IPC: F24B15/00
Filed: 1918-03-12
Abstract: 116,063. Pettit, C. J. March 12, 1918. Composition fuel. - Combustible and compressible material for fire-lighters, e.g. wood shavings saturated with a preparation of naphthalene known as creosote salt, is pressed by hand or otherwise into a mould formed of a base b, slotted side pieces c and end pieces d; bars e, e' are laid in the mould before the material is pressed therein. After the pressing of the material, one arm of a bent member f is passed along a recess b<1> in the base and beneath the bars e, e<1>, the other arm lying above the block of compressed material. When set, the block is lifted out of the mould by means of the member f, the lower limb of which slides up the slots c'.
Patent GB-196741-A (GB)
Title: Improvements in tables
IPC: A47B13/00
Filed: 1922-02-16
Abstract: 196,741. Fothergill, L. B. Feb. 16, 1922. Tables combined with receptacles; table tops.- A table top is provided with a sliding reversible panel A which covers or gives access to a receptacle A<1>.
Patent GB-883740-A (GB)
Title: Improvements in or relating to wide band amplifiers
Inventor: SOSIN BOLESLAW MARIAN
IPC: H03F1/18
Filed: 1960-02-09
Abstract: 883,740. Transistor amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 23, 1960 [Feb. 9, 1960], No. 4532/60. Class 40(6). A distributed amplifier uses transistors in common base connection. The collector line comprises series inductances L2 in conjunction with the shunt collector to base capacities of the transistors, while the emitters are fed via current transformers TX1 &c. connected in the series arms of an input line comprising inductances L1 and shunt capacitors C1. Due to the input impedance of the transistors shunting the input line, the current may vary down the line and the turns ratio of the transformers TX1 &c. is varied so as to give equal inputs to all the transistors.
Patent GB-1093143-A (GB)
Title: Improvements in or relating to drinking devices for animals
IPC: A01K7/02
Filed: 1964-02-03
Abstract: A drinking device for use with a cage for rodents or the like comprises a trough 2 disposed in a corner of the cage 1 and having a drainage outlet 3, and a supply pipe 5 connected to valves 6 actuated by the rodent to dispence water or other liquid as required.  The pipe 5 is supplied from a tank 7 the inlet of which is controlled by ballcock 9, the tank inlet being connected to a main supply tank 27 through a filter 29.  The valve 6 may comprise a valve head carried by a spindle extending through a housing and projecting therefrom so as to be lifted by the animal.  Alternatively the valve may include a ball which is dislodged by the animal to move a piston controlling the supply of liquid.  The tank 7, pipe 5 and cage 1 may be supported on a framework 31.  A series of cages 1 may be supplied from one tank 7, the drainage outlets 3 discharging into a common drainage channel. The cages may be disposed in tiers and a supply tank provided for each tier.
Patent GB-451208-A (GB)
Title: Improvements in and relating to claw clippers for birds and dogs
IPC: A45D29/02
Filed: 1936-02-14
Abstract: 451,208. Shears. SCHARNEWSKI, E., 37, Waldstrasse, Petershagen, near Berlin. Feb. 14, 1936, No. 4558. Convention date, June 17, 1935. [Class 30] A device for cutting the claws of birds and dogs comprises a plate a having a hole c, into which the claw is inserted, a cutter e pivoted at d to the plate, a guide strip g for the cutter, and handles f, b. The sides of the hole are chamfered as shown in Fig. 2. The device prevents spreading of the claw during cutting.