baber/WOPTO huggingface dataset:
Patent GB-348382-A (GB)
Title: Process for the manufacture of amino aldehydes
Filed: 1930-05-14
Abstract: Aminoaldehydes, of the general formula <FORM:0348382/IV/1> where R is an alkyl radicle, R1 an alkyl radicle or hydrogen, or R and R1 (together with the carbon atom to which they are attached) a hydroaromatic ring, R11 is an alkyl radicle, R111 an alkyl radicle or hydrogen, or R11 and R111 (together with the nitrogen atom) a heterocyclic ring, are manufactured by condensing an aldehyde <FORM:0348382/IV/2> , or a substance splitting off such an aldehyde, with a primary or secondary amine <FORM:0348382/IV/3> and formaldehyde.  The products may be reduced to the corresponding aminoalcohols, and are useful as drug intermediates. In examples the following are condensed: (1) isobutyraldehyde, dimethylamine hydrochloride and paraformaldehyde, yielding a a -dimethyl-b -dimethylaminopropionaldehyde; (2) isobutyraldehyde, diethylamine hydrochloride and paraformaldehyde, yielding a a -dimethyl-b -diethylaminopropionaldehyde; (3) isobutyraldehyde, piperidine and paraformaldehyde, producing a a -dimethyl-b -piperidinopropionaldehyde; (4) isovaleraldehyde, dimethylamine hydrochloride and formaldehyde solution to give a -isopropyl-b -dimethylaminopropionaldehyde, which may be reduced by means of sodium amalgam to the corresponding aminoalcohol; (5) hexahydrobenzaldehyde bisulphite compound, piperidine hydrochloride and formaldehyde solution, giving 1-(piperidinomethyl)-hexahydrobenzaldehyde; (6) isobutyraldehyde, methylamine hydrochloride and paraformaldehyde, yielding a -(methylaminomethyl)-isobutyraldehyde, which on reduction with sodium amalgam gives a -(methylaminomethyl)-isobutyl alcohol; (7) para-isobutyraldehyde, dimethylamine hydrochloride and formaldehyde solution, yielding the same product as (1); (8) isobutyraldehydeacetal, dimethylamine hydrochloride and formaldehyde solution, giving the same product as (1) and (7); (9) isobutyraldehydeacetal, diethylamine hydrochloride and formaldehyde solution, yielding the same product as (2); (10) hexahydrobenzaldehydeacetal, diethylamine hydrochloride and formaldehyde solution, to produce 1-(diethylaminomethyl)-hexahydrobenzaldehyde.
Patent GB-365460-A (GB)
Title: Improvements in or relating to pit props
IPC: E21D15/12
Filed: 1931-05-19
Abstract: 365,460. Pedestal stands. GILSON, W. H., Newtown Cottage, Rose Heyworth Road, Abertillery, Monmouthshire. May 19, 1931, No. 14805. [Class 52 (v).] A stand comprises two members a, b, hinged together at c, and a sliding sleeve d adapted to cover and uncover the hinged joint, the sleeve being retained in the uncovering position by a spring f, and being provided with hooks e by which it can be forced into either position, and a hook e<1> for attachment of a hauling rope. The stand may be provided with a swivel head g.
Patent GB-544235-A (GB)
Title: Improvements in centrifugally operated switches
IPC: H01H35/10
Filed: 1940-10-03
Abstract: 544,235. Centrifugal switches. HEENAN & FROUDE, Ltd. (Lee Engineering Research Corporation). Oct. 3, 1940, No. 14827. [Class 38 (v)] In a centrifugal switch in which cen trifugal force moves a contactcarrying member 31 against a spring bias to cause the separation or engagement of contacts, the speed at which this occurs is regulated by a screw 45 which simultaneously varies the strength of the spring bias and the effective leverage of the centrifugal weight 41. In the form shown the member 31 is U-shaped and carries contacts 37 at the ends of the U which normally engage fixed contacts 29. The member 31 is mounted at its lower end on a blade spring 34 which tends to press the contacts into engagement and which allows the member 31 to pivot about its lower end. The weight 41 is pivoted at 39 between the arms of the U and has a projecting part 43 which bears on the screw 45 and also on an additional blade spring 47 fixed to the member 31. Adjustment of the screw 45 to the left will diminish the resultant spring bias on the member 31 and will also rotate the weight 41 clockwise so that centrifugal force will act at a greater leverage and more readily cause the opening of the contacts. In a modification, increasing speed causes closing of contacts.
Patent GB-331048-A (GB)
Title: Improvements in abrading machines
IPC: B24B5/18
Filed: 1929-05-13
Abstract: 331,048. Triggs, W, W., (General Motors Corporation). May 13, 1929. Clutches, claw. - A spindle of a centreless grinding-machine is driven from a multispeed and reversing countershaft 202, a pulley 200 being employed during grinding and a pulley 252 during trueing up. The pulleys 200 and 252 are loose on the countershaft and are clutched to it bv a pin 258 in an axially movable rod 260, the driving position being determined by a spring-pressed ball 266 and holes 268.
Patent GB-474016-A (GB)
Title: Improvements in and relating to the control of electric motors
IPC: H02P1/42
Filed: 1937-05-28
Abstract: 474,016. Induction motors. BRITISH THOMSON-HOUSTON CO., Ltd. May 28, 1937, No. 14890. Convention date, May 29, 1936. [Class 35] For a split-phase motor having a starting winding and two or more running windings for different pole numbers, a speed-responsive switch is provided which in one position connects the starting winding in parallel with one main winding and in the other position disconnects the starting winding from one end of said main winding and connects one supply terminal to one end of the other main winding or windings. In the form shown, the centrifugal switch 16 is shown in the starting position, winding 11 with condenser 15 being in parallel across the supply with one main winding 12. At a predetermined speed the terminal 20 is isolated and switch 16 connects the supply terminal 18 to the upper ends of windings 13, 14 of higher pole numbers, and any one of windings 12-14 can then be made effective by manipulation of switch 22. The number of main windings may be other than three.
Patent GB-272499-A (GB)
Title: Improvements in automatic electric quick break switches
IPC: H01H5/06
Filed: 1927-06-07
Abstract: 272,499. Wingfield, B. R. June 11, 1926, [Convention date]. Switches, quick-action; retractive switches; actuating locking.-The switch lever 1 and operating lever 2 are pivoted at 4 and interconnected by springs 7, 7<a>. The lever 2 carries a pin 8 engaging a slot in an actuating rod 9 and a pin 11 for tripping a spring-controlled latch 14 serving to hold the switch lever 1 in the closed position shown. The rod 9 is moved gradually by devices such as thermostats, pressure bellows or diaphragms and the like, and when it rises it engages the pin 8 to move the lever 2 so that the spring passes the dead-centre, whereupon the latch 14 is released by the pin 11 and the springs 7, 7a quickly open the circuit. A similar movement takes (place in the reverse direction, there being no tripping, however, but in the change-over switch in Fig. 2, the lever 2 carries two strikers, each acting on a latch to release the switch. A return spring 24 returns the switch when the operating device exerts power in only one direction, such as a thermostat.
Patent GB-315058-A (GB)
Title: Improvements in and relating to tennis-court surrounds
IPC: A63B71/02
Filed: 1928-05-23
Abstract: 315,058. Fletcher, H. May 23, 1928. Ground anchors.-The posts of a tennis court surround screw into connectors c carried by tubes b embedded in cement or secured to base pieces. Cross pins b<1> give additional security. Plugs b<2> are used to close the connectors c when the posts are removed.
Patent GB-1267941-A (GB)
Title: Improvements in or relating to sleeve lined plug valves
IPC: F16K5/16
Filed: 1969-03-21
Abstract: 1,267,941. Valves. DURIRON CO. Inc. 21 March, 1969 [22 March, 1968], No. 15105/69. Heading F2V. In a rotatable plug valve, the plug 20 has a bore 21 extending therethrough, is formed of frusto-conical shape and is so dimensioned as to permit a sleeve 25 to be disposed between it and the wall of bore 15 within which the plug is received, the bore extending transversely to, and communicating with the valve flow passages 17-and 18. The sleeve is formed as an integral unit with annular end ribs 81a and 82a and annular intermediate flanges 54a and 55a, the flanges being joined by substantially axially extending ribs 56 to 58. Defined between each opposed pair of ribs is an opening which communicates with one of the flow passages and which receives rotation-preventing flanges 71 to 74, whilst between one rib of each opposed pair there are portions 76a, 77a whose radial thickness is less than that of the associated ribs, the portion outer peripheries being delimited by the intermediate flanges 54a and 55a. When assembled in the valve body, the ribs and flanges are accommodated in similarly shaped recesses in the plug bore such that the sleeve is also prevented from undergoing any axial movement. The portions of the sleeve received in the recesses are then under high sealing pressure whilst the remainder are under low sealing pressure. To prevent excessive build-up of pressure between the sleeve and bore, the portions 76a and 77a are each formed with an area 85 of reduced thickness at which rupture of the sleeve may take place. Furthermore, the axially extending ribs may be formed with vent holes 90 which inhibit deformation of the sleeve upon rotation of the plug. In a modification (Fig. 6, not shown), additional and inwardly projecting ribs (100, 101) may be provided between each of the ribs 71 and 72. In a further modification (Fig. 7, not shown), a similar sleeve is shown as being incorporated in a three-way valve, the plug permitting communication between either one of the passages 17 and 18 and a third passage (125) extending at right angles thereto. The valve body is constructed of corrosionresistant materials or, alternatively (Fig. 8, not shown), may have all its interior portions located with a suitable material.
Patent GB-516512-A (GB)
Title: Improvements in or relating to sound recording
IPC: G03B31/00
Filed: 1938-07-01
Abstract: 516,512. Modulating light. KENDRICK, F. A., and DACKERS, E. F. July 1, 1938, No. 15166/37. [Class 40 (iii)] [Also in Group xxxvm] A light-modulating device for recording sound on a film comprises apparatus R of the moving-coil type, the former R<1> of the coil carrying a shutter 13 which is adjacent to an aperture 12a in a screen past which the film 7 moves. In a modification, the shutter and the fixed mirror 3 are omitted, and a mirror is attached instead to the vibratory member of the recording-head R so as to reflect a vibrating beam through the aperture 12a. Fig. 4 (not shown) illustrates details of the. construction of the moving-coil recording-head, particularly the arrangement of the magnet system and the coil-centring device.
Patent GB-800019-A (GB)
Title: Rotating thread cutting head for the cutting of conical and cylindrical screws
IPC: B23G5/08
Filed: 1954-10-06
Abstract: 800,019. Screwing die-heads. FOLL, C., FOLL, H., and FOLL, A., [trading as REMSWERK C. FOLL & SOHNE]. Oct. 6, 1954 [Oct. 6, 1953], No. 15412/58. Divided out of 800,017. Class 83 (3). A rotary die-head for cutting conical screw threads comprises a body 73, Fig. 1, in which four dies 75 are interconnected so that movement of one causes similar movement of the others, the said one being engaged by a nut 36, Fig. 2, on a screwed spindle 35 which is rotated to set the cutting diameter of the head. The spindle is carried by a fork 37 engaged by an eccentric 39 on a shaft 40 carrying a gear 43 driven via gears 55, 53, 52 by a toothed wheel 59 rotatable relatively to the head. Adjacent wheel 59 is a toothed wheel 58 integral with or fixed to the head, the two wheels having differing numbers of teeth and being engageable by pawls 63, 64 mounted in a handle 61 which is manually oscillated. The first part of each stroke in the cutting direction causes slight movement of wheel 59 relatively to wheel 58 to align the teeth engaged by the pawls and to open the dies slightly. The pawls are controllable by a cam 67 to allow engagement of pawl 63 only for parallel threads, and further pawls 63<SP>11</SP>, 64<SP>11</SP> for left-hand threads are also controlled by the cam.
Patent GB-545324-A (GB)
Title: Interpolymers of styrene with heat-blended oil varnishes
IPC: C09D125/14
Filed: 1940-10-18
Abstract: 545,324. Vinyl polymerization products. DU PONT DE NEMOURS & CO., E. I., FLINT, R. B., and ROTHROCK, H. S. Oct. 18, 1940, No. 15425. [Class 2 (iii)] Synthetic resinous interpolymers are prepared by heating styrene with the product obtained by heat blending a frosting drying oil with a varnish gum or resin. The frosting drying oil may be China wood oil, oiticica oil or Japanese wood oil, or mixtures thereof with non-frosting drying or semi-drying oils, e.g: linseed, soya or castor oil. The varnish gum or resin may be any oil-soluble resin, natural or synthetic, e.g. rosin copals, oil-soluble phenol-formaldehyde resins, ester gums and phenol-modified ester gums, or coumarone-indene resins. Small proportions of other vinyl compounds, e.g. methyl methacrylate or methyl vinyl ketone may be incorporated with the styrene. The interpolymerization may be effected (a) with the aid of polymerization catalysts, e.g. organic peroxides such as benzoyl, acetyl and urea peroxides, ozone or stannic chloride, (b) in the presence of actinic light and (c) in the presence of inert solvents such as benzene, toluene or xylene. The interpolymers are soluble in dioxan, butyl acetate and in aromatic hydrocarbons, may be incorporated with plasticizers, e.g. dibutyl phthalate or dixylyl ethane or with pigments, and may be employed in the preparation of films, enamels and coating compositions. In examples, interpolymers are prepared by heating styrene in xylene solution and in the presence of benzoyl peroxide with a varnish prepared from China wood oil and (1) an oil-soluble rosin-modified phenol formaldehyde resin, (2) p-hydroxydiphenyl-formaldehyde resin ; (3) rosin and (4) p-tertiary amyl phenolformaldehyde resin. In example (5), the varnish comprises a mixture of linseed oil and the varnish of example (1), and in example (6) an enamel is prepared by grinding a mixture of titanium dioxide and antimony oxide with the interpolymer of example (1) in high flash solvent naphtha. Dixylylethane is prepared from xylene and acetylene in the presence of sulphuric acid and mercuric sulphate. Specification 516,344 is referred to.
Patent GB-1476910-A (GB)
Title: Compensating circuit for electronic switches
IPC: H03K17/06
Filed: 1975-04-15
Abstract: 1476910 Switching circuits INTERNATIONAL STANDARD ELECTRIC CORP 15 April 1975 [22 April 1974] 15426/75 Heading H3T A circuit for compensating for the resistance of a switch RON2, e.g. in telephone exchange equipment, comprises a controllable negative resistance - R connected in series with the switch and with a parallel network comprising a capacitor C shunted by a series connected resistor RM and D.C. source G. The voltage across the parallel network is measured by a differential amplifier KR to provide a control signal for the negative resistance to adjust it to compensate for the switch resistance.
Patent GB-1213764-A (GB)
Title: Device for parking two automotive vehicles one above the other
IPC: E04H6/06
Filed: 1969-03-25
Abstract: 1,213,764. Mechanical garages. ZYKLOS METALLBAU K.G. DIPL.-ING. KARL HAEGELE. 25 March, 1969 [28 March, 1968], No. 15465/69. Heading B8E. To prevent the lower vehicle 22, Fig. 2, from running backwards off a platform 7 when the latter is lowered to the position shown in Fig. 2, stops 14, which project through the platform 7 in the lowered position, are provided on a base 5. The platforms are pivoted to the raised positions shown in Fig. 1, by a ram 12, or other mechanical means, about pins 6, 8. The upper platform 10 raises the lower platform 7 by a hinged strut 16, 17. In the drive-off position the front door of the lower car is not prevented from opening by the ram 12 or the supports 9.
Patent GB-476228-A (GB)
Title: Device for testing insulators on live high-tension transmission systems
Filed: 1936-06-03
Abstract: 476,228. Detecting, indicating, and locating faults. MARSHALL, C. W., and FORREST, J. S. June 3, 1936, No. 15501. [Class 37] A device for testing insulators whilst in service comprises a two-piece pole n, o of hard wood or other insulating-material on which is mounted a bracket h carrying on trunnions e an electrostatic voltmeter d. A testing spike a is mounted centrally at the upper end of the pole, a second spike j being secured to the pole by a bracket m, the distance between the spikes a, j corresponding to the axial length of an insulator unit. A metal sleeve c is adjustable axially along the pole and is connected to one terminal of the voltmeter d, the other terminal being connected to the bracket m. A metal clip f is provided adjacent to the handle end of the pole, and is connected to earth by a lead g. The spike a and sleeve c form a variable condenser by means of which the range of the voltmeter d may be changed. Plugs r on the voltmeter engage sockets s on a plate t to enable the voltmeter to be detached for transport. The voltmeter and wiring may be electrostatically screened.
Patent GB-720988-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C33/54
Filed: 1953-06-05
Abstract: 720,988. Roller bearings. BALL BEARING WORKS J. SCHMIDROOST, Ltd., SCHMID & CO., SUCCESSORS. June 5, [Feb. 13, 1953], No. 15524/53. Class 12 (1). A roller bearing cage is made of punched sheet metal and has side flanges 5, 6 which are guided on cylindrical surfaces 7, 8 provided on the inner race ring 1, the rollers 4 being held between the inner race 1 and openings 11 provided in a cylindrical part of the cage having a different radius than the flanges. The cage contacts a roller 4 at points lying outside a line A B drawn tangential to the pitch circle of the rollers. In a modification shown in Fig. 4 the cage is centred on the outer race with the rollers disposed between said cage and race.
Patent GB-1469185-A (GB)
Title: Steering gear
IPC: B62D5/22
Filed: 1974-04-09
Abstract: 1469185 Power-assisted steering gear ROBERT BOSCH GmbH 9 April 1974 [10 April 1973 26 May 1973] 15608/74 Heading B7H In a power-assisted rack-and-pinion steering gear, the pinion 20 is fixed to a steering shaft part 21 carried by a forked lever 41 which is mounted on a shaft 42 in the gear housing 14 so as to allow lateral movement of the pinion 20 to an extent determined by adjustable stops 55, 56 and as a result of the reaction set up between the pinion and the rack 16, and a control valve 57 located in the housing is actuated by the lever 41 for controlling admission of fluid from a pump 1 and accumulator 4 to a servomotor 27 acting on the rack. The steering shaft part 21 is radially and axially located in the lever 41 by ball and roller bearings and projects freely from the housing 14 through an opening 52 having a radially deformable seal 53. Universal couplings 23, 23<SP>1</SP> are incorporated in the steering shaft between the part 21 and the steering wheel 24. In a second embodiment, Fig. 3 (not shown), the steering shaft part carrying the pinion is connected by a pair of universal couplings located within the housing to a shaft part journalled in the housing. In a third embodiment, Fig. 5 (not shown) the shaft carrying the lever is displaceably mounted in the housing and spring-loaded to urge the pinion into engagement with the rack, an adjustable stop limiting counter-displacement of the pinion. In a fourth embodiment, Fig. 7 (not shown) the lever is pivotally mounted in the housing by means of a coupling ball and a tooth engaging in a groove.
Patent GB-609214-A (GB)
Title: An improved process and apparatus for the manufacture of patterned or embossed glass, in glass drawing machines
IPC: C03B15/06
Filed: 1945-06-19
Abstract: 609,214. Glass manufacture. UNION DES VERRERIES MECANIQUES BELGES SOC. ANON. June 19, 1945, No. 15609. Convention date, May 20, 1939. [Class 56] A pattern is impressed on the surface of glass, as it is drawn, by non-rolling tools supported from the superstructure of the drawing bath. In the Fourcault apparatus shown in Fig. 1, for the vertical drawing of sheet glass 3, tools 10, disposed on supports 9, flute the glass as it is drawn past their rounded tips. The tips may be otherwise shaped and the patterns may be further varied by applying simple or compound movements to the supports 9, e.g. by an eccentric 13, Fig. 4, against which the support 9 is pressed by a spring 17. It is stated that stippled patterns may also be produced.
Patent GB-1426695-A (GB)
Title: Process for controlling water pollution in the manufacture  of chlorinated cyanuric acids and their salts
IPC: C02F1/28
Filed: 1974-04-09
Abstract: 1426695 Absorption of chlorinated cyanuric acids FMC CORP 9 April 1974 [16 April 1973] 15610/74 Heading ClC Waste liquors are treated to remove dissolved cyanurates by contacting such liquors, containing 0À2 to 3% by wt. of cyanurates, with an activated carbon having a surface area of 1000-1400 sq. metres per g. and a U.S. sieve series mesh size of from - 325 to + 40, to remove a major portion of the cyanurates. The active carbon may be used as a slurry. A pH below 7 is desirable and a preferred mesh size is 20-40. The temperature is preferably ambient.
Patent GB-439932-A (GB)
Title: Manufacture of condensation products from urea, formaldehyde and hexamethylenetetramine
IPC: C08G12/00
Filed: 1935-05-29
Abstract: Condensation products of urea, formaldehyde and hexamethylenetetramine incapable of being hardened and prepared from less than 1 molecular proportion of formaldehyde and less than 0.1 molecular proportions of hexamethylenetetramine per molecular proportion of urea are converted into condensation products capable of being hardened by treatment with so much formaldehyde that the molecular rate of urea to formaldehyde is at least 1 : 1 and advantageously about 1 : 1.5.  The treatment may take place in the presence or absence of heat and acid catalysts. In the manufacture of the non-hardening condensation products acid catalysts may be used and mixtures of urea with other substances which react with formaldehyde such as phenols, toluene sulphamide, acetamide, formamide, oxamide, urethane and aniline may replace urea.  Oxalic acid phosphoric acid, other inorganic acids, organic acids and bodies yielding acids are specified as catalysts In examples; (1) a condensation product of urea, thiourea, hexamethylenetetramine and formaldehyde made in the presence of oxalic acid, is mixed with aqueous formaldehyde and the product kneaded with cellulose to yield a moulding powder which may be moulded (2) a condensation product of urea, hexamethylenetetramine and formaldehyde is mixed with aqueous formaldehyde to yield a product which, with the addition of oxalic acid, may be worked up into a moulding powder; (3) urea, thiourea and formaldehyde are mixed in the presence of ammonia and condensed in the presence of oxalic acid to yield a product which is mixed with aqueous formaldehyde and worked up to yield a moulding powder; (4) a moulding powder made as in the previous examples is mixed with paraformaldehyde.  Specifications 429,346 and 438,887 are referred to.