baber/WOPTO huggingface dataset:
Patent GB-948422-A (GB)
Title: Toaster attachment for camp stoves
IPC: A47J37/08
Filed: 1962-05-08
Abstract: 948,422. Cooking apparatus. R. A. B. LANG. May 8, 1962 [May 8, 1961], No. 17696/62. Heading A4D. A toaster attachment for gas burners, particularly those of camp stoves, comprises a pyramidal structure 9 open at both ends, formed by a pair of telescoped metal parts 10, 11 the side walls of part 10 having flanges 27, 28 embracing the part 11. Bread slices are toasted on hand-rotatable grids 51 fastened removably by clips 54 to either side of the structure which overlies a burner 3 of a camp stove 1 and is held in position by having slots in its side walls engaged on the cross-bars 6, 7 of the stove grid 5. The parts 10, 11 either assembled or singly, can be laid flat on the grid 5 above the burners to provide either a warming enclosure or a hot plate, respectively.
Patent GB-497936-A (GB)
Title: Improvements in or relating to elastic fabric
IPC: D03D15/56
Filed: 1937-06-25
Abstract: 497,936. Elastic fabrics. SMITH, H. A., and SMITH, M. E. June 25, 1937, No. 17739. Convention date, June 27, 1936. [Class 142 (iv)] The fabric comprises elastic weft threads 10, warp threads 12, 13, which may be elastic or inelastic, and elastic reinforcing or stiffening cords 11, of larger gauge than the threads 10. The warp threads 13 pass to one side of the cords, whilst the warp threads 12 pass to the other side where they interweave with the wefts. The cords 11 are thus caused to project and form ribs. Selvage threads 14 are provided. The fabric is used for corsets and girdles &c., and the cords are preferably arranged in spaced bands or strips, which may extend vertically in the garment. The weft threads may comprise a rubber core, a base winding of fibrous yarn, and an outer but opposite winding of double strands, the cords 11 having similar windings. The fabric may be woven in its entirety with stiffening cords and strips cut therefrom but used with plain elastic fabric to be incorporated capable of stretching in one or two directions.
Patent GB-184651-A (GB)
Title: Improvements in or relating to hair curlers for use in permanent hair waving
IPC: A45D2/32
Filed: 1921-06-30
Abstract: 184,651. Aldworth, G., and Hornett, A. C. June 30, 1921. Hair-waving.-A tube a, Figs. 1 and 3, is fitted with an inner rod b having end pieces b<1>, b<2> making close contact with the ends of the tube without longitudinal movement so as to prevent tearing of the hair. The end b<1> is slotted so that the root end of the hair may be secured thereto, while the end b<2> is milled and the end flattened to afford a secure grip. To permit relative rotation of the rod and tube in one direction only, an enlarged bore at one end of the tube a contains a ratchet device comprising a tube a<1>, Fig. 1,with teeth a<2> secured in the bore, and a toothed disc b<6> sliding on a squared part b<5> of the rod b and held in engagement with the teeth a<2> by a spring b<7>. The teeth b' may be formed on the end of a square tube surrounding the rod b and extending through the head b<2> so that it can be drawn back to disengage the teeth if it is desired to unwind the hair slightly. An alternative form comprises a coiled spring wire b<10>, Figs. 3 and 4, such as is described in Specification 10822/13.
Patent GB-800958-A (GB)
Title: Fluid pressure artificial spring devices
IPC: B64C13/00
Filed: 1956-06-08
Abstract: 800,958. Aircraft feel simulators. SPERRY RAND CORPORATION. June 8, 1956 [June 10, 1955], No. 17858/56. Class 4. [Also in Group XXXVIII] An artificial spring device opposing movement of an aircraft control column, comprises a fluid chamber having a portion of its surface displaceable by movement of the column to vary the volume of the chamber, and a system automatically controlling the pressure within the chamber to be dependent on the product of a function of the displacement of the said portion and of a settable control quantity. The latter may be set manually or automatically. In Fig. 3, an aircraft control column 31 is pivoted at 32 to aircraft structure, and an extension 34 is pivoted at 36 to the valve rod 35 of a fluid pressure servo motor 38 controlling a surface 39. A cylinder 42 is pivoted to the aircraft structure at 45, and contains a piston 41 the stem 40 of which is also attached to pivot 36. One end of cylinder 42 is open to atmosphere through a port 44, and the other end is subjected to air pressure from a supply 63 regulated by a valve 62, and is connected to a pressure transducer 52 providing an electrical analogue signal forming at 50 one input to a mixing amplifier 49. A second input at 48 is derived from a mach meter 46, and a third input is derived by bridging the mach number analogue signal by a potentiometer 57, the slider of which feeds input 53 of the amplifier and is actuated through a mechanical transmission 59 by movement of the stem 40 relative to cylinder 42. The amplifier output drives a motor 61 actuating valve 62. For a constant mach number, the pressure in cylinder 42 is controlled by the displacement of rod 40, and thus the centralizing force exerted on the control column depends on its displacement from the neutral position. By suitably contouring the potentiometer 57, the centralizing force can be made proportional to or any other function of the displacement. Variation in the mach number adjusts the " stiffness " of the device, i.e., varies the centralizing force for a given displacement. Other flight parameters, e.g., airspeed, dynamic pressure, altitude, acceleration, and side slip angle may be used to vary the " stiffness." In the embodiment of Fig. 1 (not shown), the mechanical transmission 59 drives a transducer deriving a displacement analogue signal, which is multiplied by a manually chosen ratio and mixed with the signal from transducer 52, the algebraic sum being used to actuate motor 61.
Patent GB-573087-A (GB)
Title: Process for the preparation of 2-methyl-4-keto-1,3-dioxolane
IPC: C07D317/34
Filed: 1943-10-29
Abstract: 2 - Methyl - 4 - keto - 1,3 - dioxolane is prepared by reacting acetylene at 0-50 DEG  C., with hydroxyacetic acid in an anhydrous medium in the presence of a catalyst containing mercuric sulphate and a lower fatty acid anhydride of not more than 8 carbon atoms. The anhydrous medium may be a dialkyl ketone containing not more than 5 carbon atoms in the molecule such as acetone, methyl ethyl ketone or methylisopropyl ketone or a lower aliphatic alcohol such as methanol. The catalyst can be prepared by mixing mercuric sulphate with sulphuric acid and acetic anhydride, or by mixing mercuric sulphate acetate or phosphate with mercuric oxide and adding more than one mol. of sulphuric acid and acetic anhydride per mol. of mercuric oxide.  Other fatty acid anhydrides which may be used are propionic and butyric.  In the examples: (1) a mixture of hydroxyacetic acid, dry acetone, mercuric sulphate, mercuric oxide and a dehydrating agent of anhydrous sodium sulphate are placed in a pressure bomb and a cooled mixture of sulphuric acid and acetic anhydride added. Acetylene is introduced under pressure and the apparatus agitated.  2 - Methyl - 4 - keto - 1,3 - dioxolane is obtained from the reaction mixture by adding sodium acetate and water, extracting with ether and fractionally distilling at atmospheric pressure and under vacuum; (2) a mixture is prepared as in example (1) and acetylene passed through the mixture for some hours.  2 - Methyl-4-keto-1,3-dioxolane is obtained from the reaction mixture in the same manner as in example (1).  2 - Methyl - 4 - keto - 1,3 - dioxolane may be used as a solvent and plasticizer and in the modification of hydroxyl containing polymers, such as cellulose and polyvinyl alcohol.  It can be polymerized by treatment with sulphuric acid, hydrochloric acid and boron trifluoride.
Patent GB-1286374-A (GB)
Title: Spot welding process
IPC: B62D25/04
Filed: 1970-04-15
Abstract: 1286374 Welding by pressure FORD MOTOR CO Ltd 15 April 1970 [14 May 1969] 17924/70 Heading B3R The lower electrode 25 of a pair of spot-welding electrodes is shaped to provide lateral support for a columnarly-loaded portion of a longitudinally bent metal member 13 which is spotwelded to another bent member 10 to provide a hollow structural member, e.g. a body pillar for a motor vehicle.
Patent GB-819608-A (GB)
Title: Improvements in or relating to methods for the manufacture of refractory materials
IPC: C04B35/03
Filed: 1957-06-05
Abstract: A refractory material is manufactured from tar and calcined dolomite by adding thereto an organo-metallic compound e.g. aluminium isopropylate, or one which reduces the surface tension of the tar e.g. calcium butyrate.  A wetting agent dissolved in a water-free organic solvent may be included in the mixture.
Patent GB-850726-A (GB)
Title: Waterproofing of leather
IPC: C14C9/00
Filed: 1959-05-26
Abstract: 850,726. Waterproofing leather. NOPCO CHEMICAL CO. May 26, 1959 [July 11, 1958], No. 17945/59. Class 140. Leather is waterproofed with an aluminium salt of an aliphatic monocarboxylic acid having a carbon chain length of 12 to 24 carbon atoms by impregnating separately with an aromatic hydrocarbon solution of aluminium isopropoxide and an aromatic hydrocarbon solution of the acid, followed by washing in an aromatic hydrocarbon. Either the acid solution or the aluminium isopropoxide solution may be used first. Suitable acids are lauric, myristic, palmitic, stearic, behenic, oleic and ricinoleic acids, and mixtures thereof. Suitable solvents are benzene, toluene and xylene.
Patent GB-638792-A (GB)
Title: Improvements relating to portable beds
IPC: A47C17/70
Filed: 1942-07-05
Abstract: 638,792. Hinges. BUCK & SONS, Ltd., E. R., and HARRISON, W. July 5, 1948, No. 17990. [Class 65 (ii)] [Also in Group XIV] Hinges for a portable bed whereby the head end may be inclined and self-supporting in such position comprise, at each side a of the head end, a leaf f having a slot g with an offset portion h and a pin i passing through the slot and secured to the sides a of the remainder of the bed, a slot m also being provided in such sides. To incline the head end the latter is drawn out until the pin i is situated at the outer end of the slot g the head end is then inclined so that the leaf f passes into the slot m whereupon the head end with its leaf f is moved to bring the pin i into the offset portion h of the slot g the head end being supported by means of the pin i in the slot h and by its outer end bearing against the end k of the slot m.
Patent GB-629154-A (GB)
Title: Improvements in methods and apparatus for manufacturing fibro-cement pipes
IPC: B28B21/30
Filed: 1940-02-16
Abstract: 629,154. Moulding asbestos-cement pipes. GUERCI, G. Feb. 16, 1940, No. 18013/39. [Class 87 (ii)] A fibro-cement pipe is formed centrifugally in the apparatus shown in Fig. 1 and then, before the cement has set, is removed from the apparatus and compacted by centripetal pressure in the apparatus shown in Fig. 6. The apparatus shown in Fig. 1 comprises a mould 5 secured to a plate 12 seated conically in the head 2 of a rotary spindle 42 which carries a driving pulley 3. The mould has perforations 15 through which water from the fibro-cement slurry passes during centrifuging, the water passing through ducts 13 in the head 2 and so to an outlet 14. The mould is enclosed in a jacket 4, being centred therein by screws 9. The jacket is held centred by rollers 6 which co-act with a ring 39 on the jacket, the rollers being mounted in a platform 8. Asbestos-cement slurry is fed into the mould through a nozzle 20 from a container 18 by means of a piston 22 driven by an electric motor 23. In operation, the container and motor are slid vertically on columns 19, the nozzle being reciprocated within the rotating mould and feeding slurry on to the wall of the latter. The nozzle feeds both when descending and when ascending, thus forming on the mould wall superposed alternately right-handed and left-handed layers. During feeding of the slurry the speed of rotation is slow, e.g. 500-1,000 r.p.m., but when deposition has been completed the speed is increased to 2,000-3,000 r.p.m. to consolidate the slurry and drive off water. The slow initial rotation prevents stratification of the constituents of the slurry. The thickened upper end of the pipe shown is obtained by decreasing the speed of the nozzle or increasing the speed at which the material is extruded from the nozzle. The slurry may be fed not by the piston 22 but by hydraulic or pneumatic means. The mould, with the pipe therein, is then removed from the jacket, and the asbestoscement pipe 32 is removed from the mould and placed on a hollow perforated mandrel 33, Fig. 6. The mandrel and pipe are placed inside a rubber sleeve 38 which is clamped to the ends of a tube 29, and gas or liquid under pressure is forced through a pipe 37 into the space between the sleeve and the tube, thus strongly pressing the pipe 32 on the mandrel and forcing out more water.
Patent GB-809189-A (GB)
Title: Improvements in and relating to piperazine compounds
Filed: 1957-06-06
Abstract: The invention comprises piperazines of the following general formula <FORM:0809189/IV (b)/1> wherein R is a straight-chain alkyl radical containing 10-12 carbon atoms, and X- is the anion of a non-toxic acid.  The compounds of the invention may be prepared by reacting 2,5-dimethylpiperazine with two equivalents of RX (X being iodide, bromide or toluenesulphonate) to give N,N1-diR-2,5-dimethylpiperazine which is then reacted with methyl iodide, toluenesulphonate, or sulphate to give the dimethiodide, dimethyl tosylate or dimethosulphate respectively. The iodide may be converted into the chloride by treatment with silver chloride or with methanolic hydrogen chloride.  Other salts may be prepared by conventional methods.  Alternatively 2,5-dimethylpiperazines may be reacted with formalin and formic acid to give N,N1 - bis - methyl - 2,5 - dimethylpiperazine which is then quaternized with R.X, where X is a halide.  Examples describe the preparation, by the first method, of N,N1-bis-n - decyl -, n - undecyl -, and n - dodecyl - N,N1-bis - methyl - 2,5 - dimethylpiperazinium iodides and chlorides, and of N,N1 - bis - n - dodecyl-N,N1 - bis - methyl - 2,5 - dimethylpiperazinium lactate and methanesulphonate by reaction of the chloride with sodium lactate and silver methanesulphonate respectively.  Compounds of the general formula wherein R is an alkyl radical containing 8, 13 and 14 carbon atoms as well as compounds of the general formula <FORM:0809189/IV (b)/2> where R is an alkyl group containing 8 or 10-14 carbon atoms, are also disclosed.
Patent GB-1003304-A (GB)
Title: A process for the preparation of novel steroid compounds
IPC: C07J1/00
Filed: 1962-05-10
Abstract: The invention comprises 17a -ethynyl-17b -hydroxy - 13b  - n - propyl - gon - 4 - en - 3-one, 3-cyclic ketals thereof, pharmaceutical compositions thereof and a process in which a 17b  - acyloxy or 17b - hydroxy - 13b  - alkylgon-4-en-3-one is subjected to ketalisation to introduce a 3-cyclic ketal group of the general formula <FORM:1003304/C2/1> (in which R and R1, which may be the same or different, each represents a hydrogen atom or an alkyl group having from 1-8 carbon atoms and n is either 0 or 1), a 17b -acyloxy product is saponified at the 17-position, the 17b -hydroxy product is oxidized selectively to introduce a 17-Keto group, the 17-Keto product is reacted with an ethylynation agent to introduce a 17a -ethynyl - 17b  - hydroxy group and the 3-cyclic Ketal group is subjected to deketalization. The Ketalization may be effected by a glycol or a dioxolan, oxidation by cyclohexanone in the presence of aluminium isopropylate, and alkynylation with alkali metal acetylides or a Grignard reagent.  Said compositions having progestomitic activity are administered orally in tablets sublingual tablets, syrups or elixirs, by injection in sterile liquid medium or rectally as a suppository. Specifications 979,892 and 1,003,305 are referred to.
Patent GB-274278-A (GB)
Title: Improvements in coal pulverisers
IPC: B02C13/28
Filed: 1926-07-20
Abstract: 274,278. Cachemaille, A. S., (Bunting, S. A. S.). July 20, 1926. Impact pulverizers.-A pulverizer for coal or like materials comprises a chamber with a bottom opening occupied by a propeller which prevents the material from settling and forces a current of air through the chamber. As shown, Fig. 1, the chamber A is constricted at K just above the propeller B and provided with an impact member or guard T to prevent direct ejection of the coal &c. through the outlet V at, the top of the chamber. The replaceable blades L of the propeller preferably overlap and may be secured between a flange M on the vertical driving-shaft C and a top flange N by bolts O. In a modification, Fig. 2, auxiliary beaters P are provided on the shaft C above the propeller, and an auxiliary fan U assists the exit of the pulverized material. The steel blades R of the beaters P are square in section and are held adjustably in sockets in the arms of the spider Q by screws S. Preferably, the blades Q are arranged tangential to the shaft. A vertical sluice adjustment is provided in the air inlet H. The coal &c. is fed through a lateral opening G on to the propeller B, and any pieces that may get past the propeller fall down a sloping passage into a receptacle J.
Patent GB-883933-A (GB)
Title: Cobalt - base alloys
Inventor: THIELEMANN RUDOLF HAROLD
IPC: C22C19/07
Filed: 1960-05-23
Abstract: An alloy for high temperature service contains in percentage by weight:- ..C.0,30- 0,70 ..Mn.0- 1 ..Si.0- 1 ..Cr.18-24 ..W.8-15 .Nb with or.. .without.Ta.1- 3 (Ta \sO Nb) ..Ni.0- 5 ..Fe.0- 3 ..Co.balance The contents of Mn, Si, Fe and Si are preferably kept as low as possible.
Patent GB-144905-A (GB)
Title: An improved boiler for domestic hot-water supply and for like purposes
IPC: F24H1/28
Filed: 1919-07-23
Abstract: 144,905. Inglis, J. M. July 23, 1919. Internally-fired boilers.-An outer water-holding casing A with hemispherical head is connected to an inner chamber B traversed bv vertical flue tubes D by junction boxes G, F situated opposite the inlet J and outlet H for water. The whole is heated by a gas-burner arranged beneath the inner member, and escape pipes L, L<1> leading to a flue are provided, one of which may be closed by a plate M if not required.
Patent GB-595453-A (GB)
Title: Improvements in or relating to the separation of powdered solids from gases
IPC: B01J8/18
Filed: 1944-09-25
Abstract: <PICT:0595453/III/1> Spent powdered catalyst from a process of converting hydrocarbons is regenerated by burning with air &c. in a vessel 14 in which the temperature is about 1,000-2,000 DEG F.  Most of the catalyst is separated from the hot gases in cyclone or other separators 22 from which the gases enter a scrubber 32 such as a spray, bubble, or packed tower supplied with oil through a pipe 34. A slurry of oil and catalyst is pumped from the base of the scrubber to a vessel 48 for cooling by contact with a vaporizable liquid such as water or light hydrocarbon, the regenerating gases passing, e.g., to atmosphere or through a further scrubber to recover oil vapours. Water is supplied both below and above the level of slurry in vessel 48 and steam evolved may be scrubbed in a tower 98 to condense entrained oil vapours.  Vessel 48 may be maintained at superatmospheric pressure and steam withdrawn through a valve 72. Cooled slurry returns to scrubber 32, some being withdrawn through a pipe 82 and catalyst recovered.  Hot slurry may be returned to the hydrocarbon conversion process through a pipe 84 and make-up oil introduced by a pump 87.  In a modification the scrubber comprises a lower section employing high boiling oil and an upper section in which colder oil, e.g, a heavy gas oil traps oil vapours from the effluent gases and passes thence to the conversion process as oil feed.  Or the gases may be cooled indirectly or scrubbed with water.
Patent GB-189828-A (GB)
Title: An improved preparation for the treatment of distemper in dogs and other animals
IPC: A61K35/02
Filed: 1921-07-06
Abstract: 189,828. Masters, F. C., and Morris, J. M. July 6, 1921. Medicines for internal use.-An internal remedy for treating distemper in dogs, and for other veterinary purposes, consists of Stockholm tar, castor oil, Epsom salts, black sulphur, yellow sulphur, soap, lard, mutton fat and black gunpowder. The remedy is administered with lard or butter to render it palatable.
Patent GB-284545-A (GB)
Title: Method of manufacturing conical and tubular formations from metal plate
IPC: B21D22/24
Filed: 1927-07-11
Abstract: 284,545. Gauld, D. M. July 11, 1927. Cupped articles.-In making rings for roller bearings of comparatively thick plate the latter is cupped in known, manner, and the cup is then heated and turned inside out. In the reversing operation the cup E is inverted upon a die DY and pressed by a ram C, Fig. 6, into a flanged closed-ended cone F. The cone is then placed in the position shown dotted in Fig. 7, and the flange FY is engaged by a surface CY on a ram C' and the conical tube is forced into a die D to form a cylindrical tube. The surface CY holds the flange in a recess in the top of the die to jump the metal at the point HX. Ejectors G expel the tubes. In forming tubes of small size the cup is reversed into a cylindrical form. The tubes may be of any cross-sectional shape and with parallel, stepped, or conical sides.
Patent GB-722500-A (GB)
Title: Improvements in or relating to a felt hardening machine
IPC: D04H17/12
Filed: 1952-11-17
Abstract: 722,500. Felt. AMERICAN FELT CO. Nov. 17, 1952, No. 18358/53. Divided out of 722,490. Class 42 (2). A felt hardening machine comprises a plurality of upper rollers 20 mounted in fixed bearings permitting rotation and axial movement of the upper rollers, a plurality of lower rollers 21 mounted in bearings 30 which permit no axial movement of rollers 21, yokes 32 supporting bearings 30 and vertically slidable in guides 40, and a piston 34 connected to each yoke 32 and subjected to pneumatic or hydraulic pressure in a cylinder 35 to urge the lower rollers towards the upper and control the pressure exerted on material F passing between the rollers. By connecting the pressure chambers 42 of all the cylinders 35 to the same source of pressure, equal pressure in all the cylinders is ensured; where the rollers are arranged in two or more units, different pressures may be applied to rollers of different units. Adjacent rollers 21 are connected and driven by chains 36. The machine particularly described is the same as that described in Specifications 722,490 and 722,499.
Patent GB-146407-A (GB)
Title: Manufacture of an improved nickel catalyst
IPC: C11C3/12
Filed: 1920-07-02
Abstract: A nickel catalyst particularly for use in the hydrogenation of fats and fatty acids is prepared by superficial reduction in the dry way and at a low temperature of precipitated nickel carbonate or hydroxide, while leaving the interior of the particles unreduced.  It is essential that the carbonate or hydroxide should be in the form of fine non-coherent particles, and this condition is determined by the manner in which the precipitation is carried out; for example in the case of the carbonate it is preferred to precipitate by a bicarbonate in the cold, and in the case of the hydroxide by ammonia.  In an example, to a solution of nickel sulphate is added at room temperature a solution of sodium bicarbonate, and the precipitate obtained is washed, dried, and reduced with hydrogen at 220 DEG  C. for 2 hours.ALSO:Nickel carbonate in the form of fine non-coherent particles is prepared by precipitating a nickel salt solution with a solution of a bicarbonate in the cold.
Patent GB-712153-A (GB)
Title: Improvements in or relating to a method of making a cold formed bimetallic shape
IPC: B32B15/01
Filed: 1952-07-22
Abstract: Bi-metallic strip to be deep drawn and having a backing of ferrous metal such as wrought iron which is free from migratable carbon bonded to a facing component of straight chromium type stainless steel containing less than 0.2 per cent. carbon is spheroidized at a temperature of the order of 1400-1600 DEG F. Specification 680,801, [Group XXII], is referred to.