baber/WOPTO huggingface dataset:
Patent GB-850373-A (GB)
Title: Process for purifying mono carboxylic acids
IPC: C07C51/46
Filed: 1956-11-19
Abstract: In a process for purifying monocarboxylic acids consisting only of carboxyl groups, carbon and hydrogen the impure acid is codistilled together with at least one polyhdric alcohol or partial ether thereof as an entrainer.  The entrainer preferably has a boiling point which is within the range 180 DEG -300 DEG  C. and which differs from that of the acid by about 40 DEG  C.  The codistillation may be effected at below 180 DEG C. and under reduced pressure to avoid esterification.  1-15 parts by weight of entrainer may be used per part of acid.  Acids mentioned are benzoic, cinnamic, p-toluic, caproic, caprylic, capric, crotonic, dimethyl acrylic and sorbic. Entrainers mentioned are di- and/or tri-hydric alcohols, e.g., mono-di- and tri-ethylene and 1:3- 1:2-and tri-propylene glycols, the butane-pentane-and hexane-diols, glycerol, trimethylol propane and hexane triol, and also the monoalkyl ethers thereof such as methyl, ethyl and propyl ethers and mixtures of these compounds which may be obtained by subjecting several glycol molecules to dehydration. Examples illustrate the purification of (i) benzoic acid; (iii) p-toluic acid; (v) 80% and (vi) 20% sorbic acid; and (iv) the separation of p-toluic from terephthalic acid, all using diethylene glycol; and (ii) the purification of cinnamic acid using triethylene glycol. Specification 687,229 is referred to.ALSO:In a process for purifying mono-carboxylic acids consisting only of carboxyl groups, carbon and hydrogen the impure acid is codistilled together with at least one polyhydric alcohol or partially etherified polyhydric alcohol as an entrainer.  The entrainer preferably has a boiling point which is within the range 180-300 DEG C. and which differs from that of the acid by about 40 DEG C.  The codistillation may be effected at below 180 DEG C. and under reduced pressure to avoid esterification.  Acids mentioned are benzoic, ceramic, p-toluic, caproic, coprylic, capric, crotonic, dimethyl acrylic, and sorbic. Entrainers mentioned are di- and/or tri-hydric alcohols e.g. ethylene, di-propylene glycols; the butane, pentane and hexane diols; glycerol; trimethylol propane; hexane triol; and also the monoalkyl ethers thereof such as methyl, ethyl and propyl ethers and mixtures of these compounds which may be obtained by subjecting several glycol molecules to dehydration.  1 to 15 parts by weight of entrainer may be used per part of acid.  Examples illustrate (i) the purification of benzoic acid using diethylene glycol; (ii) the purification of cinnamic acid using triethylene glycol; (iii) and (iv) the purification of para-toluic acid and separation thereof from terephthalic acid using diethylene glycol; and (v) and (vi) the purification of 80% and of 20% sorbic acid using diethylene glycol. Specification 687,229 is referred to.
Patent GB-301513-A (GB)
Title: Improvements in or relating to boiler cleaners
IPC: F28G3/16
Filed: 1928-11-30
Abstract: 301,513. Aktiebolaget Superior, (Assignees of Ateliers de Constructions Mecaniques de Forest Soc. Anon.). Dec. 2, 1927, [Convention date]. Cleaning, fluid-pressure processes for. - The nozzle tube 1 of a steam &c. boiler cleaner is moved into or out of its casing 3 by the engagement of a nut 7 at its end with a threaded rod 8 rotated by a pulley 12. By operating a bellcrank lever 15 by means of a wire 16 the pulley may be engaged by a clutch 14, 13 with a tube 5 which then rotates with the rod 8 carrying the nut 7 with it so that the nozzle is then rotated but is not moved endwise. Steam &c. is admitted through ports 18, 22, the flow being interrupted for part of the time during each revolution.
Patent GB-286211-A (GB)
Title: Method of treating cellulosic material
IPC: D21C1/02
Filed: 1927-12-31
Abstract: 286,211. Euromerican Cellulose Products Corporation, (Assignees of Dorner, B.). Feb. 28, 1927, [Convention date]. Pulp, preparation of; waste products, treatment and utilization of.-In the treatment of straw and analogous material such as cornstalks, bagasse, and the like, to obtain cellulose and other products therefrom, the material, after being chopped and shredded, is sieved to remove leaf rubbish, corn cob rubbish, corn grain, and the like, which may be used as stock food, and is then subjected to leaching with cold or warm water to remove water solubles such as sugars, mineral salts and the like, then disintegrated and washed in a heater having a rotary sieve. A further heating takes place after which the material is cooked with caustic soda at a moderate temperature to dissolve out the silica. The cooking in caustic soda is repeated, a stronger alkali being used, and the temperature is kept sufficiently low to avoid caramelization of the pentosans and the other sugars present. The waste liquors are treated with acid to precipitate the organic materials which may also be used for stock food, and the caustic soda is recovered in the usual manner. Specification 283,851 is referred to.
Patent GB-1046747-A (GB)
Title: Electromagnetic horns
Inventor: DOUGALL JOHN
IPC: G10K9/15
Filed: 1964-08-28
Abstract: 1,046,747. Horns. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 12, 1965 [Aug. 28, 1964], No. 35455/64. Heading G5S. During stoving of an enamelled electromagnetic horn of the type shown, air in the horn compartment expands through the liquid enamel and is prevented from re-entering the horn enclosure when the enamel sets; the tuning of the horn is thus affected. The invention avoids this by providing holes in the horn casing through which the air expands and an expansible container sealing the space over the hole. One hole is sealed by a bellows arrangement 25, the other by a resilient annular sleeve.
Patent GB-330254-A (GB)
Title: Improvements relating to fire-extinguishing sprinkler systems
IPC: A62C35/64
Filed: 1928-12-03
Abstract: 330,254. Woosnam, A., (Automatic Sprinkler Co. of America). Dec. 3, 1928, Drawings to Specification. Alarms operated by expansion of gases, by flowing liquid, and by movement of working parts in extinguishing apparatus; pneumatic alarms. - In a sprinkler system of the kind in which a differential main valve is held closed by byepass water pressure, the pressure is relieved when a valve is opened by the fall of a weighted lever controlled by air bulbs and a separate control piping. The lever, in falling, closes an electric alarm circuit. When the main valve opens, the byepass water flows to an hydraulic motor, which is also fed by water from the neutral chamber of the valve. Specifications 326,140, 326,141, [Class 47 (ii), Fire extinguishing &c.], and 327,676 are referred to.
Patent GB-1246513-A (GB)
Title: Improvements in or relating to damper arrangements for ventilating or other ducts
Inventor: MAYBURY JOHN WILLIAM
IPC: A62C2/12
Filed: 1968-07-25
Abstract: 1,246,513. Fire damper. AMBERLEY ENG. CO. Ltd. 25 July, 1969 [25 July, 1968], No. 35560/68. Heading A5A. A fire damper for a ventilation duct comprises a damper blade D normally maintained in an open position parallel to the length of the duct A by a fusible link connection F with the duct wall A', but biassed to swing into a closed position between two fences B and C projecting from opposite walls A<SP>1</SP> and A<SP>2</SP> of the duct on release of the link G.
Patent GB-889934-A (GB)
Title: Improvements in locks
IPC: G07C9/00
Filed: 1959-10-21
Abstract: 889,934. Releasable fastenings. BIDDING- TON, T. A. Oct. 4, 1960 [Oct. 21, 1959; Nov. 10, 1959], Nos. 35601/59 and 37995/59. Class 44. An electric lock comprises an electromagnetic means for controlling operation of a locking element the electromagnet means having its energizing winding arranged as a plurality of electrically distinct sections and a circuit completing assembly including means having a plurality of contacts connected to the winding sections and separable key means serving when brought into association with the contact bearing means to bridge selected contacts such that the winding sections become electrically connected in sequence. In the embodiment shown in Fig. 1 the electromagnetic means is a solenoid 7 the armature 6 of which is normally urged by a spring 9 into a recess 5 of a bolt 1 to prevent operation of the bolt. Energizing the solenoid moves the armature out of the recess 5 and the boll can then be operated. The solenoid winding has seven sections and these are connected to fourteen contacts of a socket 11, two further contacts of which are connected to a direct current source. A plug 12 is wired in such a manner that when it is inserted into the socket it joins the winding sections in sequence and to the direct current source. The plug and socket together constitute the circuit completing assembly. In a modification the solenoid sections are connected to the contacts of a relay and the relay which has a multi-section winding is connected to the contacts of the socket.
Patent GB-1318962-A (GB)
Title: Crosslinked resins
IPC: B01J47/00
Filed: 1970-07-23
Abstract: 1318962 Purifying glyoxal and formaldehyde ROHM & HAAS CO 23 July 1970 [19 Aug 1969] 35735/70 Heading C2C [Also in Divisions C3 and C5] Glyoxal and formaldehyde are deacidified by use of a styrene/divinyl benzene polymer matrix anion exchanger in which the polymer contains pendant tertiary amine oxide groups. Traces of nitric acid acetic acid and an unspecified coloured acid are removed from the glyoxal, and formic acid is removed from the formaldehyde.
Patent GB-1495684-A (GB)
Title: Specimen feed for a microtome
IPC: G01N1/06
Filed: 1975-08-29
Abstract: 1495684 Microtome AMERICAN OPTICAL CORP 29 Aug 1975 [2 Dec 1974] 35751/75 Heading G2J A microtome via which the specimen in holder 7 is reciprocated passed a stationary knife has a carriage 13 manually reciprocated by handle 10 and a pin and slot mechanism and the feed for the specimen is provided by screw 26 moving the specimen arm 15 towards the knife (downwards as shown). The feed screw is driven via a one-way clutch 24 by arm 23 that abuts a cam 19 at the end of each stroke. The cam 19 is rotatable to vary the setting of the cam surface 20 and thus the feed distance. Manual feed is via handle 29 that can be used to over-ride the clutch.
Patent GB-1240008-A (GB)
Title: Thermostatic switch assembly and sensor
Inventor: MERTLER CHARLES STANLEY
IPC: H05B1/02
Filed: 1968-07-26
Abstract: 1,240,008. Thermal switches. ESSEX INTERNATIONAL Inc. 26 July, 1968, No. 35784/68. Heading H1N. [Also in Division H5] In a thermostatic switch for use with a heating appliance in which a casing 11, Fig. 2, has a thermally conductive portion 30 adapted to engage the vessel to be heated and carries a bimetal 39 for opening a pair of heater control electrical contacts 57, 58 at the preset temperature, the fixed contact 58 has a remote hydraulic transmission control for setting the required temperature. The temperature setting device is mounted on the cooker panel and is coupled to the switch through hydraulic capsule sender and receiver units 75, 85 having an interconnecting fluid conduit 92. Trimmer screw 91 in the control screw 89 engages the sender capsule 85 and is used for initial calibration. Insulating pin 67 actuated by the receiver capsule 75 passes through aperture 68 on the movable contact arm 57 and engages the fixed contact arm 58. Bent arm 46 on the casing determines the initial cold position of the insulator button 44 of the bimetal 39 and is initially adjusted so that the contacts 57, 58 are held open. The portion 30 is held in contact with the vessel by spring (22), Fig. 1 (not shown), which engages flange 23 of the easing to provide a resilient mounting.
Patent GB-444349-A (GB)
Title: A combined cupboard and pedestal
IPC: B25H3/00
Filed: 1934-12-13
Abstract: 444,349. Cupboards. ELLISON, Ltd., G., and ELLISON, G., Wellhead Lane Works, Perry Barr, Birmingham. Dec. 13, 1934, No. 35788. [Class 52 (i)] A sheet-metal cupboard or locker c has an upwardly extending portion a at the rear serving as a support for switchgear b or other workshop apparatus.
Patent GB-1002820-A (GB)
Title: Improvements in or relating to metallic diffusion
Inventor: GRIFFITHS DEREK GORDON
IPC: C23C10/34
Filed: 1962-09-20
Abstract: In the process described in the parent Specification in which an element is deposited on a metal surface and diffused therein, by heating the metal surface in contact with the element in the presence of two or more ammonium halides, one ammonium halide is replaced by a chromic halide, and the coating mixture is replenished with the coating element and the two halides, the proportion of ammonium halide used in the replenishing mixture being greater than in the original mixture.  Example, for coating ferrous articles with chromium, original composition, 60 Kaolin 40 chromium metal powder mixed with 0.2% by wt. ammonium bromide and 0.02% chromium fluoride; replenishing composition 66 chromium powder 34 Koalin mixed with 1.62% by wt. ammonium bromide, and .2% chromium fluoride.  The iron or steel articles are heated at 800 DEG  to 1200 DEG  C. in an inert-gas e.g. A, or in a reactive gas e.g. H or N to form e.g. nitrides with the metals present.
Patent GB-395594-A (GB)
Title: Improvements relating to stabilising devices for vehicles
IPC: B60G21/05
Filed: 1932-12-19
Abstract: 395,594. Vehicle suspensions. ASTON, J., 75, Gillingham Road, Gillingham, Kent, Dec. 19, 1932, No. 35897. [Class 108 (ii).] Stabilizing means for preventing lateral canting in motor vehicles comprises a pair of levers L fulcrumed at F on each axle, the inner ends being interconnected by a pin P with slots S to give lost motion while the outer ends are connected to the sprung body or chassis by means of pins mounted on brackets, slots S also being provided. On the rear axle the fulcrum pins F are mounted on brackets on the axle to enable the levers L to clear the differential housing DH, while the brackets B for the front axle are mounted on the ends of the chassis longitudinals CL. Specification 2416/98, [Class 79, Locomotives &c.], is referred to.
Patent GB-1015076-A (GB)
Title: Improvements in and relating to welding and to materials for use therein
Inventor: STEPHENSON NORMAN
IPC: B23K35/30
Filed: 1962-09-21
Abstract: Parts of ferritic nickel steel containing 8-20% Ni and 0.03-0.2% C are welded by gas-shielded arc welding with a filler wire having the following composition: <TABS:1015076/C6-C7/1> The filler wire should not contain more than 200 p.p.m. O, 100 p.p.m. N and 3 p.p.m. H. The welding is preferably carried out using a "dip-transfer" technique, in which case the filler wire may contain 0.05-0.15% Ti.
Patent GB-1272907-A (GB)
Title: Pulse generator for speed measuring instruments
IPC: G01P3/484
Filed: 1970-07-24
Abstract: 1,272,907. Measuring speed and distance. KIENZLE APPARATE G.m.b.H. 24 July, 1970 [23 Sept., 1969], No. 36065/70. Heading G4H. [Also in Division G1] A tachometer for measuring the angular speed and total revolutions of a shaft 10 (Fig. 1) comprises a disc 9 with a plurality of equispaced teeth 11 and strips 12 which pass through a gap in a first coil 7 to produce pulses from a first circuit 3 which are fed to a frequency meter, and the outer periphery is formed of two dissimilar parts 13, 14 which pass through a gap in a second coil 8 to produce one pulse per revolution from a second circuit 4, which are fed to a counter.
Patent GB-909391-A (GB)
Title: Improvements in and relating to propellants
IPC: C06B25/18
Filed: 1958-11-10
Abstract: 909,391. Propellant compositions. NADEL, I, G. Nov. 10, 1958 [Nov. 18, 1957 (2)], No. 36083/58. Drawings to Specification. Class 9 (2). A propellant composition comprises a strand of filamentary nitrocellulose capable of being twisted and wound, said strand being either wound into a package or stapled and accreted to form a fibrous sheet material. It is preferred that the nitrocellulose should have a nitrogen content from about 12.6 to 13.25%, and a crystalline content not exceeding 20%, and the filaments a preferred denier between 3.75 and 8. The package may be encased in a layer of combustible non-propellant material such as cellulose acetate, cellulose acetate-butyrate or regenerated cellulose. From 0.5 to 2.5 of a stabilizer, e.g. diphenylamine, may be present in the composition. The ballistic properties of the propellant may be varied by the tightness with which it is wound into a package, the twist of the filaments and the composition of the spinning dope.
Patent GB-998351-A (GB)
Title: Urethanes and processes for their production
IPC: C07D213/40
Filed: 1961-10-09
Abstract: The invention comprises urethanes of the formula <FORM:0998351/C2/1> wherein n is an integer of from 1 to 10, R represents an unsubstituted or substituted alkyl, alkenyl, aryl, aralkyl, alkylaryl, furfuryl or cycloalkyl radical, R1 represents a hydrogen atom, an aralkenyl radical, a heterocyclic radical other than furfuryl or a radical as defined for R, and the group <FORM:0998351/C2/2> is derived from the <FORM:0998351/C2/3> grouping of a monolefinic compound other than that of the general formula <FORM:0998351/C2/4> , in which X is a hetero atom, at least one of the unspecified valencies being other than hydrogen.  The above urethanes are prepared by reacting an alkylidene-diurethane, of the formula <FORM:0998351/C2/5> or a condensation product produced from a non-basic aldehyde of the formula R1.CHO and a carbamic acid of the formula H2N.COOR in the presence of an acidic catalyst, with an appropriate cationic polymerizable mono-olefin or a mixture thereof in the presence of an acidic catalyst.  If a basic aldehyde is used to prepare the diurethane starting material it should be in the form of a salt.  The radicals R and R1 may be further substituted for example by chlorine, nitro, alkoxy and dialkylamino.
Patent GB-508211-A (GB)
Title: Improvements relating to landing gear for aircraft
IPC: B64C25/04
Filed: 1937-12-31
Abstract: 508,211. Aircraft alighting - gear. GENERAL AIRCRAFT, Ltd., WILLIAMS, D. L. H., and CROCOMBE, F. F. Dec. 31, 1937, No. 36253. [Class 4] In an aircraft having landing-gear which includes main and nose elements so disposed, respectively rearward and forward of the centre of gravity of the aircraft so that the tail of the aircraft is maintained normally clear of the ground, a pair of nose elements are supported on mountings so that in both the extended and retracted positions of the elements a free space is left, within the fuselage, between either or both the elements and their mountings. In one form, laterally-spaced nose-wheels 14, mounted for example as described in Specification 505,109, are mounted on shockabsorbers 17 pivoted to the aircraft structure and to one element of a jack 21, for rearward extension and retraction, the other element of which is pivoted to the structure. In a modification during the final stage of retraction a pinion on the wheel-carrying member is adapted to engage a fixed rack to rotate the wheel about the axis of the shock-absorber. In a further form, the shock-absorbers are mounted in the aircraft on oblique axes so that, during forward retraction, the wheels swing inwardly and are turned to lie adjacent the fuselage contour. According to the Provisional Specification, the wheel may be retracted into wells provided with covers and may be steerable. Specifications 506,527 and 506,633 also are referred to.
Patent GB-1111447-A (GB)
Title: 13-alkyl gonatrienes
Inventor: HUGHES GORDON ALAN
IPC: C07J1/00
Filed: 1965-08-24
Abstract: The invention comprises compounds of formula <FORM:1111447/C2/1> wherein RO is a free or etherized hydroxy group or an acyloxy group, R1 is an alkyl group having at least 2 carbon atoms, R2 is a C1- 6 aliphatic hydrocarbon group optionally substituted by a halogen atom or an hydroxy, alkoxy, amino or substituted amino group, and R2 and the hydrogen atoms H are transto the group R1, including racemates of the 13b - and 13a -enantiomers, and their preparation by reaction of a corresponding 17-ketone with an organometallic reagent, followed if desired by (a) total or partial hydrogenation of an unsaturated group R2; or (b) 3-acylation, etherification or hydrolysis.  (\sB) - 13b  - ethyl - 3 - (21 - tetrahydropyranyloxy) - 8, - iso - gona - 1,3,5(10) - trien - 17 - one is prepared by etherification.  The compounds of the invention have estrogenic and anti-lipenic activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral, parenteral or rectal administration.
Patent GB-406117-A (GB)
Title: Improvements in vulcanizing rubber and accelerators therefor
IPC: C08K5/00
Filed: 1932-12-22
Abstract: Nitrophenyl ethers of substituted mercaptobenzothiazoles, including those in which hydrogen atoms of the benzo group substituted by methyl, ethyl, propyl, alkoxy, nitro, amino, halogen &c., may be obtained by reacting the sodium or potassium salt of mercaptobenzothiazoles in which, for example, the following substituents are present:--5<1>-nitro, 6<1>-amino, 5<1> - chlor, 4<1> - ethoxy, 5<1> - nitro - 6<1> - chlor, 6<1>-hydroxy, 4<1>-methyl, 4<1>-phenyl, with a nitrochlorbenzene in which the nitro group is either ortho or para to the chlorine.  The Specification as open to inspection under Sect. 91 comprises also performing the above reactions with dinitrochlorbenzene. This subject-matter does not appear in the Specification as accepted.ALSO:Aldehyde amine reaction products are added to mono nitrophenyl ethers of mercaptobenzothiazoles to form mixed accelerators.  The nitrophenyl ether may be that of a non-substituted or of a substituted mercaptobenzothiazole, the effect being more marked in the case of the latter compounds, which by themselves have little accelerating effect.  The aldehyde amine reaction products include crotonylidene aniline, aldol aniline, ethylidene aniline, propylidene aniline, butyraldehydeaniline condensate, and their further aldehyde reaction products and the reaction products of such aldehydes as crotonaldehyde, acetaldehyde, butyraldehyde and such amines as toluidine, xylidine, hexylamine, butylamine and ethylamine.  The nitrophenyl ethers of the substituted mercaptobenzothiazole include those in which the hydrogens of the benzo group are substituted by methyl, ethyl, propyl, alkoxy, nitro, amino, halogen &c., and may be obtained by reacting the sodium or potassium salt of mercaptobenzothiazoles in which, for example, the following substituents are present:-51 nitro; 61 amino; 51 chlor; 41 ethoxy; 51 nitro 61 chlor; 61 hydroxy; 41 methyl; 41 phenyl, with a nitrochlorbenzene in which the nitro group is either ortho or para to the chlorine.  Examples are given showing the effect of specific mixed accelerators in vulcanization.  The Specification as open to inspection under Sect. 91 comprises also the use of dinitro-phenyl ethers of mercaptobenzothiazoles in admixture with aldehyde-amine reaction products, and gave detailed examples showing their use in vulcanization.  This subject-matter does not appear in the Specification as accepted.