baber/WOPTO huggingface dataset:
Patent GB-1133506-A (GB)
Title: Preparation of norbornane derivatives
IPC: C07C35/29
Filed: 1966-04-26
Abstract: 1,133,506. Norbornane derivatives. EASTMAN KODAK CO. 26 April, 1966 [27 April, 1965], No. 18310/66. Heading C2C. Diesters of norbornane diols are prepared by reacting bicyclo[2,2,1]-hepta-2,5-diene or a carboxylic acid ester of bicyclo-[2,2,1]-hept-5- ene-2-ol, with a fatty acid containing 1-4 carbon atoms and heating the mixture in the presence of an acidic ion exchange resin. Some monoester may also be formed. Suitable fatty acids are, for example, acetic, propionic, butyric and trichloracetic acids. The preferred ion exchange resins are sulphonated polystyrene resins, particularly those cross-linked with a divinyl benzene. Preferably the reaction is carried out in the presence of water. The esters so obtained may be converted to the diols by heating them with a C 1 -C 4  alkanol in the presence of a strong acid, e.g. hydrogen chloride, hydrogen bromide or boron trifluoride, preferably in the absence of water.
Patent GB-171430-A (GB)
Title: Improvements in dynamo electric machines
IPC: H02K5/22
Filed: 1920-07-05
Abstract: 171,430. Greenhalgh, E., and Electromotors, Ltd. July 5, 1920. Doors and covers.- The end cover of a dynamo or motor casing is provided with inspection doors and openings so constructed as to be readily adapted to machines of the open, enclosed or protected types, or for various types of ventilation. For this purpose the cylindrical or conical end cover A is formed with openings surrounded by jointing faces a<6> in planes approximately parallel to the axis of the cover and half-way between the axis and the circumference. The inner edges of the openings are connected to the rim or flange a<1> by which the cover is attached to the body of the casing by segmental walls a<9>. A third opening is provided by which the cover can be connected to a ventilation device, or which can be covered by a plate f<2> when such device is not used. The side openings are provided with hinged doors C, the hingepins being formed in two parts d<1>, d<2>, Figs. 8 and 11, not in line with the other, one engaging with the door and the other with the frame, so that the door can bed against the faces a<6>, a jointing ring c<4> being interposed. The doors are held in position by screws c<5> passing through bosses c<6> on the door and entering tapped holes a<12> in the end cover, the screws being retained in position by washer rings c<7>. The doors are formed with openings which may be fitted with sheets of glass h<2>, metal cover plates, or sheets of expanded metal, or may be left open as required.
Patent GB-319421-A (GB)
Title: An improved method of controlling variable electric condensers and like apparatus
IPC: H03J1/08
Filed: 1928-06-26
Abstract: 319,421. Hesketh, B. June 26, 1928. Wireless tuning-apparatus, adjustment devices for. - Adjustment mechanism for controlling a number of condensers &c., simultaneously and separately comprises rotatable gearing, the control shaft of which is displaced in order to effect the separate movements. In one construction, Fig. 1, the control shaft 1 is provided with left and right-hand worms 5, 7 driving condenser gear 6, 8, one operating-knob 10 having a right or lefthand screw-thread engagement with a panel fixing bush 4. Rotation of the operating-knob 2 alone adjusts both condensers simultaneously. while if both knobs 2, 10 are rotated together and the pitches of the threads 5, 7, 9 are equal, the shaft 1 is moved laterally so that one condenser remains stationary and the other receives a movement relatively thereto, the extent of movement being equal to the rotational plus lateral components. In a modification the shaft 1 is carried in a tubular member slotted to receive the gears 6, 8 which are provided with a helical spring for preventing back-lash. The movement of one of the operating knobs in this modification is limited by an arcuate groove and stop.
Patent GB-297180-A (GB)
Title: Improvements in railway buffers
IPC: B61G11/18
Filed: 1927-07-14
Abstract: 297,180. Turton, Platts, & Co., Ltd., G., Cowen, G. H., and Hewitt, F. July 14, 1927. Buffers.-In a railwayvehicle buffer of the kind in which the plunger B is retained within a shouldered casing A by means of a split ring C positioned within a groove in the plunger, the retaining-ring is made of an axial length greater than that of the groove, so that it provides a relatively broad surface for guiding the rear end of the plunger in the case. In order to prevent damage to or deformation of the rear end of the plunger if it should strike the base of the case A or the base plate, the ring C is preferably extended rearwardly to be flush with the end of the plunger as shown in Fig. II, or to extend beyond the end of the plunger as shown in Fig. VIII, or to be bent radially inwards over the end of. the plunger as shown in Fig. IV. In all instances, the insertion of a tool in the gap C1, Fig. VIII, in the ring allows the latter to be expanded after the plunger has been pushed clear of the bottom of the case, thus permitting the plunger to be removed from the case. Further modifications are described in which the plunger has more than one groove or indentation, in which bevelled surfaces such as A1, Fig. VIII on the ring cooperate with bevelled surfaces on the plunger or casing, and in which longitudinal recesses or slots are made in the ring and/or the rear end of the plunger for the insertion of tools for removing the ring.
Patent GB-354924-A (GB)
Title: Improvements in or relating to air conditioning apparatus
IPC: F24F3/16
Filed: 1930-06-18
Abstract: 354,924. Moistening air. STURTEVANT CO., B. F., 6, Damon Street, Hyde Park, Boston, U.S.A.-(Assignees of Anderson, S. M. ; 78A, North Main Street, Sharon, Massachusetts, U.S.A.) June 18, 1930, No. 18667. Convention date, June 24, 1929. [Class 55 (ii).] A water spray is formed in air conditioning apparatus by a blast of air across the mouth of a water tube connected to a tank to which water is supplied under low pressure from a reservoir and in which the level can be varied to control the head of water with regard to the mouth of the water-tube. A casing 10 forming part of an air duct has in the form shown two sets 16, 18, of spray devices each comprising a number of sections embodying a water pipe 22 and compound air pipe 24 and end flanges 20 bv means of which the sections are bolted together. A nozzle 28 screwed into the middle of each water pipe section terminates in the path of an air nozzle 32. Pipes 40 depending into water in closed supply tanks 36, 38, are connected to the water pipes and water is supplied to the tanks from a feed tank 42 having a float-controlled inlet valve through a pipe 44 and branches 46, 48 having check and regulating valves. Equalising pipes 54 connect the tops of the supply tanks with the casing 10. To vary the volume of spray automatically to secure a predetermined degree of moisture, a humidity control of known type having an element sensitive to the amount of moisture in the outgoing air is adapted to operate the regulating valves. An air and water pump 68 having air and water intakes 74, 76, and a separating vessel 80 supplies compressed air to the sprays through a pipe 82 and returns water to the feed tank 42 through a pipe 84. A drainage tank 86 supplies the pump, an adequate level being maintained therein by a connection 90 with the feed tank 42 and a float-controlled inlet valve. Shut-off valves are provided in the inlet pipes to the feed tank and pump and may be automatically operated by solenoids when current for the pump motor is switched off. A vertical humidifying chamber with sets of nozzles all at the same level and supplied from one tank may be employed.
Patent GB-187213-A (GB)
Abstract: 187,213. Vanni, P. G. Oct. 10, 1921, [Convention date]. Rollers and roller heads. -To obtain a high draft in the drawing-apparatus of spinning-machines a belt 4 is stretched by two rollers 1, 2 against a roller 5 which may precede or follow a drawing-roller. In the arrangement shown in Fig. 3 the belt is applied to the intermediate roller, and the roller 2 is carried and supported entirely by the belt, and is provided with rims whereby the roller 5 is relieved from the direct action of the weight of the roller and is free from the belt at the point at which the fibres leave it. The rims act also as guides for the belt. A third roller may be mounted upon the rollers 1, 2 to assist in the stretching, or between them to hold them in correct position. In existing machines the rollers are mounted in a yoke, or in plates connected by a bar 10, Fig. 7 provided with means 12 engaging existing grooves in the framework. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also an arrangement wherein the rollers themselves co-operate with one or two of the drawing-rollers to act on the fibre, the belt merely holding the roller 2 in position. This subject-matter does not appear in the Specification as accepted.
Patent GB-1177406-A (GB)
Title: Electrochemical apparatus.
IPC: G01N27/333
Filed: 1967-04-24
Abstract: 1,177,406. Electro-chemical measuring electrodes. CORNING GLASS WORKS. April 24, 1967 [May 3, 1966], No.18736/67. Heading G1N. An electrode for measuring an ionic concentration in an aqueous phase comprises an organophilichydrophobic porous membrane 14 through which a liquid organic phase 18 containing an organic ion exchange material capable of exchanging ions with the aqueous phase and immiscible with the aqueous phase, can flow in minute quantities and form an interface with the aqueous phase at the outer surface of the membrane. As shown in Fig.1, the electrode includes an internal reference electrode comprising a platinum wire 28 with a silver-silver chloride coating 30 and a salt bridge 34 of saturated potassium chloride solution gelled with gelatinous silica or agar. A glass wool plug 32 soaked in the salt bridge solution enhances mechanical stability. Alternatively, Fig.2 (not shown), glass tube 24 may continue downwards and be attached to the membrane 14, e.g. by solder glass. Porous membrane. The membrane 14 may comprise a microporous glass disc about 0À5mm. thick having a nominal maximum pore size of 0À9 to 1À4 microns or silver having a porosity of 0À2 microns maximum pore size and a thickness between 1 and 2 mils and is treated with an agent to import the organophilic-hydrophobic property. Suitable agents are: silicone liquids; silane coupling agents, e.g. methacrylate propyl trimethoxysilane; fluorinated hydrocarbons or polymers; and beeswax. Processes for applying and curing the agents are described. Ion exchange materials. Cationic and anionic types can be used for measuring alkaline earth metal ions, e.g. Ca<SP>++</SP> and halogen ions, e.g. Cl<SP>-</SP> respectively. The ion exchange material may be a liquid or a solid dissolved in a liquid. Suitable liquid cation exchangers are: bis-(2-ethylhexyl) phosphoric-acid; either or both of the mono- and diforms of n-butyl phosphoric-acid and amyl phosphoric acid; certain carboxylic acids, e.g. caproic-acid and caprylic acid; and perfluorobutyric acid. Suitable liquid anion exchangers are: primary, secondary and tertiary amines, e.g. N-trialkyl methylamine, N-lauryl-N-trialkyl methylamine, and N, N, N-triiso-octylamine. Suitable solid ion exchangers include: dioctadecyl amine, tetraheptyl ammonium iodide, cetyl pyridinium chloride, nonadecyl phosphoric acid and dinonyl naphthalene sulphoric acid. Appropriate liquids for dissolving solid ion exchangers or for diluting liquid ion . exchangers preferably have high dielectric constants, e.g. octyl and dodecyl alcohols, 2-pentanoes, nitrobenzene, orthodichlorobenzene, trialkylphosphates and mixtures of mineral oils in phosphonates. Specific examples of complete electrodes are given. The electrodes of the invention may be used in conjunction with a calomel or silversilver chloride reference electrode.
Patent GB-632709-A (GB)
Title: Paper strap
IPC: B65D5/465
Filed: 1946-06-21
Abstract: 632,709. Straps and bands. DEHN, S. G. (Paper Strap, Ltd.). June 21, 1946, No. 18752. [Class 109] [Also in Group XVII] A paper strap comprises a flat strip of thin tough paper having its opposite edges folded over upon itself a number of times, the folded edge portions 11, 12 substantially meeting along the centre line on the same side of the strap, the folded strip being set and also rendered relatively flexible by forming a succession of adjacent transverse creases 28 in all of the superimposed layers throughout the length of the strap. Preferably the folds are not less than three, and the manner of the folds may vary from that shown, e.g. they may be of S- or M-formation. The strap may be produced by passing the paper web 21, Fig. 4, through guide rolls 22 to a folding mechanism 23 to fold over the opposite edge portions a number of times and then transversely creased by drawing the strap through a number of sharp bends in opposite directions such as over a number of suitably arranged, small diameter rollers 24. The creases are formed by the tendency of the strap to buckle adjacent the forward surface of a roller due to the difference in radius of curvature between the inner and outer layers of the strap. The strap is finally reeled at 29. In a -modified method of transversely creasing the folded strap, the latter after leaving the folding mechanism is passed between a pair of cooperating corrugated rollers 31, 32, Fig. 10, the corrugations of which are spaced apart slightly greater than the thickness of the strap. The paper strap is suitable in forming handles for bags and cartons, the ends of the strap being e.g. adhesively secured thereto, and also for use in tying bundles, the ends being secured together e.g. by metal staples driven therethrough. Specifications 632,705, 632,706 and 632,707, [all in Group XVII], are referred to.
Patent GB-411304-A (GB)
Title: Improvements in and relating to sound transmitting apparatus
IPC: G10K11/28
Filed: 1933-07-03
Abstract: 411,304. Acoustic horns. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN-EN APPARATEN FABRIEKEN, 30, Croeselaan, Utrecht, Holland. July 3, 1933, No. 18787. Convention date, Aug. 12, 1932. [Class 13.] Relates to sound transmitters of the type producing a large output at a predetermined frequency from a diaphragm associated with a horn and, optionally, with a resonating space therebetween, and comprises rendering acoustically ineffective the space normally existing between the transmitter casing and horn by filling it up or enclosure by acoustically rigid walls. In one embodiment the transmitter A, Fig. 2, is provided with a massive horn B in which the dead space is non-existent. In an alternative construction, Fig. 3, the resonator casing D, horn B and a wall F enclosing the dead space are formed in one piece. Alternatively the portion F may be separate and fixed to the transmitter casing. The enclosing wall may be of thick material such as a casting or may be stiffened by ribs to render it acoustically rigid.
Patent GB-763384-A (GB)
Title: Improvements in or relating to devices for hair waving and like purposes
IPC: B29C49/04
Filed: 1954-06-28
Abstract: 763,384. Hair-waving appliances. WELLA AKT.-GES. Jan. 13, 1955 [June 28, 1954], No. 18931/54. Class 131. A hair curler comprises an elongated, cylindrical body portion around which the tress is wound and an element rotatably mounted in one end of the body and having an outwardly projecting arm rod or loop movable from a position projecting axially from the body to one at right angles to the body, engaging the body and resting against the scalp, to prevent unwinding of the hair. As shown, a slotted body 7 of metal or plastic has prongs 8 embracing a plastic ball and shaped to engage a latching rod 10 when the rod is rotated so that the end 11 rests against the scalp. In modifications the prongs are straight-sided and the ball has protuberances and the body is straight-sided and has ridges or grooves to prevent slipping of the hair. The ball may consist of two hemispherical parts secured together by adhesive and enclosing the neck part of a latching loop and in a further modification the ball is replaced by a double-walled part-spherical member provided with a latching loop and engaging inside and outside the prongs.
Patent GB-517359-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B29/02
Filed: 1938-07-07
Abstract: 517,359. Forced flow steam boilers; steam separators. LA MONT, W. D. July 7, 1938, No. 18996/39. Divided out of 517,323. Drawings to Specification. [Classes 123 (ii) and 123 (iii)] In a water-tube boiler, the mixture of steam and water first passes through a ring-shaped separator having a spiral passage of decreasing cross sectional area and then between concentric rows of channel bars and through a further separator consisting of bars depending from a cover plate on the separator drum, as described in Specification 517,323.
Patent GB-284936-A (GB)
Title: Improvements in spark-producing toys
IPC: A63H33/36
Filed: 1927-07-18
Abstract: 284,936. Arnold, C. July 18, 1927. Spark-producing toys; tops for spinning on surfaces. - In a sparkproducing toy having a lever a on which ceriumblocks b are mounted, the lever has an extension with one or several apertures over which coloured, transparent panes g are fixed by means of flaps h. In a modification, a transparent pane k projects from the end of the lever a to which it is secured by flaps i. The invention is of general application, but as shown is applied to a spinning top comprising a spindle s upon which the lever a is rotatable, and a disc c fixed to the spindle and provided with an abrasive surface d adapted frictionally to engage the cerium-blocks and thereby produce sparks.
Patent GB-343413-A (GB)
Title: An attachment for use in connection with telephones
IPC: H04R1/12
Filed: 1930-06-23
Abstract: 343,413. Sanitary and hygienic devices. ELBOZ, A., 59, Campbell Road, Bow, London. June 23, 1930, No. 19103. [Class 40 (iv).] A disinfecting attachment for telephone mouthpieces comprises a ring-like member 9 having an outer ring 9a adapted to engage over the mouthpiece 2 and an inner ring 9b which extends into the mouthpiece and forms an annular chamber 9c for a disinfecting pad 7. The walls 9d, 9f, 9e of the chamber are perforated with apertures 11, and the wall 9d is of such internal diameter as to afford a free passage 10 to the mouthpiece for the transmission of speech. The rings 9a, 9b may be formed integrally as shown or may be made separately, in which case the ring 9b is formed at the front with an outwardly extending flange adapted to be clamped against the front face of ring 9a by the flanged cap 13. Instead of perforating the walls of the disinfectant chamber, one or more of such walls may be constituted by or fitted with perforated metal or wire gauze. The device is mounted on the mouthpiece in a readily detachable manner by means of a continuous helical spring 12 located in a peripheral groove 9g in the ring 9a so as to project through slots therein. Alternatively, spring clips may be provided for holding the device in position.
Patent GB-891470-A (GB)
Title: Condensation products derived from carboxylic acids
Inventor: MILLS MAURICE ROBERT
IPC: C09F7/00
Filed: 1958-06-16
Abstract: In a process for making condensation products from carboxylic acids of the formula R CH2COOH where R is a hydrocarbon radical containing at least six carbon atoms, the acid is heated with a catalyst of which one component is a metallic salt of a carboxylic acid of said formula and another component is an oxygen-containing compound of boron such as boric oxide, boric acid, boric acid salts of weak or volatile bases, boric acid esters and mixed anhydrides of boric acid and a carboxylic acid of said formula, the heating being carried out so that water and carbon dioxide are liberated and removed from the reaction zone. The products include acyclic ketones and cyclic unsaturated ketones such as pyrones, the proportions obtained depending on the composition of the catalyst employed.  Metals which are specified for use in the catalyst include magnesium, calcium, strontium, barium, chromium, manganese, iron, cobalt, nickel, lead, copper, zinc, tin, molybdenum, cerium, thorium, selenium, aluminium, antimony, bismuth and sodium.  The metallic salts used in the process are added as such to the carboxylic acid or formed in situ from a suitable metal oxide or hydroxide or from another salt of the metal, e.g. from a carbonate.  Additional boron-containing compounds specified for use in the process include zinc or ammonium pentaborate, esters of boric acid such as trimethyl or triethyl or mannitol esters and mixed anhydrates of boric and acetic or higher fatty acids.  The acids may be heated under reflux at reduced pressure whilst water formed is removed or the heating may take place in the presence of hydrophobic solvent the vapours of which entrain the water formed.  Among acids specified for use as starting materials are capric, oleic, lauric, stearic and phenyl acetic acids and fatty acids from tall oil, linseed, cottonseed, sunflower, rapeseed, groundnut, safflower and soyabean, herring, whale, pilchard and sardine oils.  Solvents specified for use in the process include xylene, tetra- and decahydronaphthalenes, polyethylbenzenes and petrol fractions. The fractionation of products by extraction with alcohol is described.  Specific ketonic products mentioned include laurone, stearone, dioleylketone and dibenzyl ketones.  Examples are furnished.  The Provisional Specification mentions the use of elementary boron as catalyst.  Specification 827,361 is referred to.
Patent GB-296174-A (GB)
Title: Improvements in or relating to devices for admitting air into the combustion mixtureof petrol engines
IPC: F02D9/00
Filed: 1927-07-19
Abstract: 296,174. Stuart, A. H., and Wechsler, A. July 19, 1927. Induction pipes, extra air valves and fittings for.-In extra air valves of the type comprising a body 7 adapted to be mounted in the induction pipe 5 and provided with an annular recess 6, to which air is supplied, surrounding the induction passage, the recess 6 is separated from the passage in a radial direction by an imperforate partition 14 which is arranged to constrict the passage and to provide an air port 16 facing in the direction of flow of the mixture stream. The partition 14 may taper towards the port 16, and an annular coil of wire may be disposed in the recess 6 as described in Specification 223,182. The partition 14 may be integral with the body 7, or may comprise a ring provided with a flange 15 adapted to be clamped between the body 7 and the induction pipe 5. The air supplied to the recess 6 may be admitted through screens 9 to a passage 10 controlled by a valve operated by a Bowden wire 11, and a pet cock 12 may be fitted to supply fuel to the recess 6 for starting.
Patent GB-140688-A (GB)
Title: An improved collar or garment securing device
IPC: A41B3/08
Filed: 1919-08-02
Abstract: 140,688. Heath, F. G. Aug. 2, 1919. Soft-collar fasteners.-A device for securing the front edges of soft collars or other garments in spaced relation comprises two plates 1, 2, Fig. 1, sliding on each other and carrying studs 5, 6 for engagement with button-holes in the edges of the collar flaps, each plate having lugs 3, 4 which are turned over on the other side with sufficient pressure to retain the plates in adjusted positions. In a modification, Fig. 2, the plates are provided with slots 11 and each plate has a rivet 14 passing in the slot in the other plate and provided with a washer 15, the rivet and slot connexion providing sufficient friction to retain the plates in the position to which they are adjusted. Referenee has been directed by the Comptroller to Specification 145,027.