baber/WOPTO huggingface dataset:
Patent GB-213184-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B3/00
Filed: 1923-08-02
Abstract: 213,184. Romeyn, J. Aug. 2, 1923. Cylinders receiving liquid fuel. - A projection h on the cylinder cover enters a corresponding cavity g in the piston towards the end of the compression stroke, and expels air from the cavity into the annular space j. A whirling motion is imparted to the air by helical grooves k, formed on the walls of the projection h. or the cavity g. The projection may be mounted on the piston, and the cavity formed in the cylinder head; in an opposed piston engine a projection or one piston enters a cavity in the other. A plurality of fuel in. jectors f distributed round the annular chamber j may be used. The invention is applicable to both four-stroke and two-stroke cycle engines; in the latter case piston ports in the cylinder walls are used instead of the valves d and e.
Patent GB-1176417-A (GB)
Title: Improvements in and relating to Infant Chairs
Inventor: ISAACS ISSA
IPC: A47D1/10
Filed: 1967-04-28
Abstract: 1,176,417. Infants chairs. WARDOUR IMPORTS Ltd. 28 April, 1967, No. 19815/67. Heading A4J. An infants chair comprises two identical plastic panels 10, 11 having channel shaped edges which are resiliently clipped on to two frames 12, 13 made of metal tubing. Toggles 40 on the edges of the channels are bent across the channels to lock the panels in position. Each tube is bent to provide straight portions with which the panels are engaged and to provide two end portions 17, 22 adapted to engage the top surface and undersurface of a table. A safety belt 26 and crotch belt 25 are provided. In another construction (Fig. 4) the tubes are bent to form end hooks (32) adapted to engage the back of a vehicle seat.
Patent GB-249735-A (GB)
Title: A heat protecting covering for the drums of water tube boilers
IPC: F22B37/22
Filed: 1925-08-08
Abstract: 249,735. Steinm³ller, L. Aug. 8, 1925. Overheating of drums, preventing.-A covering for protecting a drum of a water-tube boiler from the action of the hot gases consists of rows of refractory blocks d held close to the wall of the drum between the rows of water-tubes. The blocks are threaded on curved-rods or the like e secured to lateral bearer beams f. The blocks d<1> between the tubes and the beams cover the whole length of the drum. A layer of tiles c made of asbestos or other protective material is placed between the blocks and the drum. Further blocks i may be fitted in the spaces between the tubes of each row, these blocks being hooked to bars r supported by the blocks d. In a modification, the blocks d, d<1>, are threaded by means of bolts and eye-pieces on chains secured to beams above the drum.
Patent GB-736993-A (GB)
Title: Hypnotic sedative and anticonvulsant therapeutic preparations and their manufacture
IPC: A61K31/045
Filed: 1951-08-24
Abstract: 2-Ethinyl butanol-2 is prepared by reacting methyl ethyl ketone with acetylene in the presence of an alkaline condensing agent such as sodium, sodamide, potassamide, potassium t.-amylate or potassium hydroxide.  In the example, acetylene is passed through a suspension of potassium hydroxide in dry ether, the ketone is added and the passage of acetylene continued for 3 hours.  With sodium as condensing agent, the reaction is carried out in the presence of liquid ammonia.  Esters of acetic, propionic, butyric, benzoic, salicylic, phthalic, hexahydrophthalic, maleic, malic, tartaric, citric and succinic acids are prepared by reacting 2-ethinyl butanol-2 with the appropriate anhydride or chloride of the acid, if desired in the presence of a catalyst.  In the case of polybasic acids, both the acid esters and the neutral esters may be prepared. Described is the preparation of (a) 2-ethinyl-2-acetoxybutane; (b) 2-ethinyl-2-propionoxy butane; (c) 2-ethinyl-2-butyroxy butane; (d) 2-ethinyl-2-butyl hydrogen phthalate; and (e) 2-ethinyl-2-butyl benzoate.  The carbinols and their esters are used in pharmaceutical preparations (see Group VI).ALSO:Physiologically active preparations contain as an active ingredient a compound of the general formula <FORM:0736993/VI/1> wherein X is hydrogen or an acyl group, together with a non-toxic carrier, namely an edible vegetable or mineral oil, a polyoxyethylene glycol, or an inert solid carrier such as heavy magnesium oxide, magnesium carbonate, certain diatomaceous earths, or waxes.  The acyl covers both aliphatic and aromatic carboxylic and sulphonic radicals.  Specified are the residues of acetic, propionic, butyric, benzoic, salicylic, phthalic, hexahydrophthalic, maleic, malic, tartaric, citric and succinic acids.  Such preparations are administered orally, parenterally or as suppositories.  Injections take the form of aqueous or oily solutions or suspensions containing dispersing agents such as polyethylene glycols.  Oral medicaments are (a) soft gelatin capsules in which the carbinol is dissolved in oil such as peanut, sesame or corn oil; (b) hard gelatin capsules, in which the carbinol is absorbed on an inert absorbent, e.g. magnesium oxide or carbonate, with or without the further addition of oil; (c) tablets having a coating of resin; (d) elixir, in which the vehicle is an aqueous solution of propylene glycol or ethyl alcohol, glycerin and sucrose; (e) emulsion of oil, e.g. peanut, emulsifier, e.g. polyethylene glycol monostearate, and thickener, e.g. acacia, gelatin, dextrin, pectin, sodium alginate or agar agar. Suppositories have a basis of (a) white wax and cocoa butter, or (b) carbowax.  Described is the preparation of (a) methyl ethyl ethinyl carbinol; (b) 2-ethinyl-2-acetoxybutane; (c) 2-ethinyl-2-propionony butane; (d) 2 - ethinyl - 2 - butyroxy butane; (e) 2 - ethinyl - 2 - butyl hydrogen phthalate and 2-ethinyl-2-butyl benzoate (see Group IV (b)).
Patent GB-517323-A (GB)
Title: Steam generators
IPC: F22B29/02
Filed: 1938-07-07
Abstract: 517,323. Forced-flow steam boilers. LA MONT, W. D. July 7, 1938, No. 20165. [Class 123 (ii)] Water is circulated by a pump C from a drum 113, through groups of coiled tubes around a combustion chamber, and the flow through the tubes is restricted at points beyond their inlets. Feedwater is supplied by a pump F through separate groups opening into the top of the drum. The mixture of steam and water from the generating tubes discharges into a separator in the drum. A number of restrictions may be placed in each of the tubes, for example one may be placed near the inlet of a tube and one at or near the outlet. The restrictions may be formed by reducing the ends of each of a group of tubes at their junction with their connectors leading from the inlet leader 145, and to the upper part of the drum respectively. Perforated discs may be inserted in the tubes instead of reducing the tube ends. The feed heating coils .30 are arranged in connection gas passages around the combustion chamber and semi-radiant superheater coils are arranged behind the generating coils and adjacent to the wall of the combustion chamber. The tubes are supported by radial plates as described in Specification 517,360. The inlet ends of tube groups are connected by tubes to an inlet chamber 146 provided with baffles for guiding the water into the tubes without forming eddies, as described in Specification 517,358. The steam and water from the coils. first pass through a ring shaped separator 106 having a spiral passage of decreasing cross sectional area and then between concentric rows of channel bars 114 and through further bars 116 depending from the cover plate 115, as described in Specification 517,359. Fresh feed is supplied to the feed heater 30 through a valve Q controlled in accordance with the water level in the drum. Circulation water is conducted under the control of a valve R in a bye-pass U into the fresh feed pipe 130 to protect the feed heater when the fresh feed is low, as described in Specification 517,360. The valve R is so controlled by a thermal device that the circulation water supply is increased when the feed temperature is excessive. Specifications 171,735, 263,778, and 294,619, [all in Class 123 (ii)], also are referred to.
Patent GB-335902-A (GB)
Title: Improvements in and relating to the sizing of paper and to compositions therefor
IPC: D21H17/62
Filed: 1929-07-01
Abstract: 335,902. Becker & Co. (1924), Ltd., (Wieger, B.). July 1, 1929. Sizes.-Paper or paper pulp is sized with an emulsion prepared by adding to the molten sizing material, maintained in rapid agitation, 1-3 per cent of an aqueous dispersion of a protective colloid, preferably alkali casein. The sizing material is preferably colophony but may also or alternatively comprise other resins, natural or artificial, solid or semi solid hydrocarbons, waxes, fats, higher fatty acids or mixtures thereof, with or without drying oils. The emulsion is precipitated on the paper or pulp by the addition of about 1 per cent of alum or aluminium sulphate. Colouring matter may be incorporated with the emulsion. Examples of the invention are as follows :-To 98 kgs. of melted pine resin, in a vessel having stirring arms rotating at about 300 r.p.m. is added a small quantity of water pre. ferably containing 0.1-0.7 per cent of alkali and subsequently a hot solution of 2 kgs. of casein in 25 litres of water and 200 gms. of caustic soda. Cold water is subsequently added until an emulsion is added to the paper pulp and subsequently precipitated by the addition of 1 per cent of alum. Mixtures which may be emulsified and used in the above manner are :-(1) colophony, 90 per cent and copal 10 per cent; (2) colophony, 85 per cent and paraffin 15 per cent; (3) copal, 60 per cent, shellac, 20 per cent and resin varnish, 20 per cent; (4) resin, 60 per cent, stearin, 10 per cent and basic colouring matter, 30 per cent. 6.66 per cent of the last-referred to emulsion may be added to the pulp which then contains 1 per cent of colouring matter but may be oversized; this is not necessarily disadvantageous. For surface-sizing paper an emulsion is used, containing 60 kgs. of resin, 30 kgs. of copal and 10 kgs. of paraffin and diluted to 3 per cent strength.
Patent GB-148301-A (GB)
Title: Improved means for locking a nut on a bolt
IPC: F16B39/04
Filed: 1920-07-09
Abstract: 148,301. Lecloux, G. Oct. 26, 1916, [Convention date]. Locking nuts.-In locking a nut on a bolt, the nut C is provided with a number of projections B, one of which is displaced into a groove A in the bolt to secure the nut in position. The projections are throughout their length narrower than the grooves.
Patent GB-632930-A (GB)
Title: Improvements in or relating to electric potentiometers and to remote supervisory systems
IPC: G05D3/16
Filed: 1946-07-06
Abstract: 632,930. Potentiometers. STANDARD TELEPHONES & CABLES, Ltd., and BROWN, A. July 6, 1946, No. 20241. [Class 37] [Also in Group XXXVIII] An automatic potentiometer divided into " coarse " and " fine " resistance steps is used to give a two-digit indication in accordance with the voltage output of the predictor by illuminating selected lamps when the combined outputs of the predictor and the potentiometer operate a gas-filled relay. As shown, the coarse and fine parts R21, R22 of the potentiometer are tapped by uniselectors SA, SB which are restored to normal under an independent control every 5 seconds. At the beginning of each cycle, the stepping magnet SA of the course switch interacts with relay AR until the voltage picked up over SA4, Fig. 1, and applied to the grid of a cathode follower tube V2 is equal to or rather more negative than the voltage applied from a predictor (not shown) to the grid of a cathode follower tube V1. Under these conditions, the impedance of a third tube V3 is such as to cause the firing of a cold cathode tube V4 and the anode relay TR of the latter stops the switch and energizes a relay O which releases TR and remain locked up in series with a further relay OA. The voltage applied to V2 is by this means changed to that corresponding to the adjacent preceding position of the coarse switch, the two sections below the position of wiper SA4 being shunted by the equal resistance of the fine part of the potentiometer R22. Operation of OA also initiates the interaction of magnet SB with relay BR which continues until the voltage applied to V2 approximates that applied to V3. TR then operates as before and energizes a relay E which locks, releases TR and lights the indicator lamps selected by the switches. The voltages from the cathode followers may be modified by a further voltage applied at E from the predictor so that the indicator shows the estimated position of the target in 5 seconds instead of the present position. After 5 seconds, relay J on an independent tuning circuit, Fig. 4, energizes relay DC which energizes SJ to release J and locks over its low resistance winding and the homing banks in series with the stepping relays and magnets. The switches are then restored and DC falls to start a new cycle.
Patent GB-963310-A (GB)
Title: Azulenes and production thereof
IPC: C07C13/52
Filed: 1962-05-25
Abstract: Complexes are formed between an azulene substituted in the 4- and 8-positions and an alkali metal alkyl, aryl, or aralkyl or a complex thereof with a metallo-hydrocarbon compound. The organo-metallic compound used may be any of those referred to in Specification 808,181. In the examples complexes are formed between 4, 8-dimethylazulene and lithium methyl, lithium ethyl, lithium n-propyl, lithium butyl and lithium phenyl, 4, 8-diphenylazulene and lithium butyl and 4-methyl-8-phenylazulene and lithium phenyl, in solution in ether but are not isolated.ALSO:Azulenes substituted in the 4, 6 and 8 positions are obtained by further treating a 4,8-disubstituted azulene by the process of Specification 808,181 which comprises reacting with an alkali metal alkyl, aryl or aralkyl or metallo-hydrocarbon complex thereof to form an addition compound which is either treated with a compound containing an active hydrogen atom, e.g. water or an alcohol, followed by dehydrogenation of the dihydroazulene so formed, e.g. in the presence of chloranil, or direct thermal decomposition, e.g. by steam distillation, to the 4,6,8-trisubstituted azulene. The preparations described include those of the new compounds 4,8-dimethyl-6-ethyl (or -propyl or -butyl or -phenyl)-azulene, 4,8-diphenyl-6-butyl - azulene and 4 - methyl - 6,8 - diphenyl-azulene.
Patent GB-456179-A (GB)
Title: Improvements in or relating to the coupling together of shafts and pump rods
IPC: F16D1/033
Filed: 1935-07-16
Abstract: 456,179. Flanging rods. PEARN & CO., Ltd., F., and PEARN, H. W., West Gorton, Manchester. July 16, 1935, No. 20257. [Class 83 (iv)] [See also Group XXIV] Uniting by fusion.- The coupling flange c of a rotary or reciprocating pump rod a is secured thereto by fusion-welding at the jointing face, preferably electrically. The fused metal e, f is deposited in grooves formed in the rod or flange or both by oxyacetylene flame or by machining. The grooves may be undercut or as shown.
Patent GB-441203-A (GB)
Title: Improvements in propellers with blades the pitch of which is adjustable during flight
IPC: B64C11/36
Filed: 1934-07-10
Abstract: 441,203. Screw propellers. PIAGGIO & CO. SOC. ANON., 2, Via Petrarca, Genoa, Italy. July 10, 1934, No. 20263. Convention date, June 12. [Class 114] A variable - pitch screw propeller has its blades mounted in the hub sockets 3 and each blade 4 has screwed thereto a sleeve 5 which supports a ball race 8 taking centrifugal thrust and other races 9 and 10 adapted to take the journal thrust. The assemblage is completed by a collar 12 screwed into the socket to hold the thrust bearing and by a ring 6 screwed to the sleeve and having conical jamming surfaces engaging corresponding cones 7 on the blade root. Sleeve 5 has an off-set pin 14 connected by links 15 with the arms of a nut 17 slidably mounted on a screw 20 supported in an extension of the boss. The screw 20 carries a bevel wheel 21 which engages a bevel 22 and thence through worm gearing 24 is coupled by a shaft 25, coupling 26 and shaft 27 to the actuating mechanism by a pinion 28. This pinion meshes with the internally toothed crown wheel 29 and with the externally toothed wheel 30, both of which are supported coaxially on the hub. The crown 29 and wheel 30 have annular rims upon which brakes 31, 32 may be imposed by the lever 35. When either the crown 29 or wheel 30 are stopped the pinion 28 receives a motion and the shaft 27 and the pitch-changing gears are thereby operated. Provided in the transmission is a coupling 26 which is adapted to cut out the drive when either of the end pitch positions of the blades is reached. For this purpose two ratchet wheels 36, 37 are mounted on a flange 40 on the transmission shaft 27 ; the ratchets are oppositely disposed and are engaged by corresponding pawls 38, 39 which are pivoted eccentrically so that centrifugal force normally tends to keep the teeth in engagement. An external slider 26 is provided which has abutments adapted to contact with the enlarged end 41 of one of the pivot points 14. When the end 41 engages an abutment, the slider 26 is moved endwise and cam surfaces thereon press against and cause one or other of the pawls 38 or 39 to be disconnected from the corresponding wheels 36, 37 and so disconnect the transmission. For the purpose of giving an indication of the pitch setting the wheels 29 and 30 have two toothed sectors with which pinions 42, 43 mesh and these are by a differential gear united to form the drive for the shaft 54 which receives a motion corresponding to the pitch setting. Stops 62 and 63 are provided on an indicating dial to limit the displacment of the index finger 61, such finger being frictionally mounted upon its spindle.
Patent GB-332718-A (GB)
Title: Process and apparatus for bleaching fabrics in open width condition
IPC: D06B5/00
Filed: 1929-07-03
Abstract: 332,718. Barker, F., Barker, E., and Barker, P. V. July 3, 1929. Drawings to Specification. Alloys.-Bars for supporting fabrics to be bleached or dyed are made of a steel alloy containing 0.35 per cent of carbon, 0.25 per cent of manganese, 0.3 per cent of silicon, 0.01 per cent of sulphur, 0.015 per cent of phosphorus, 8 per cent of nickel, and 18 per cent of chromium.
Patent GB-645977-A (GB)
Title: Roasting zinc ore
IPC: C22B1/10
Filed: 1948-07-30
Abstract: <PICT:0645977/III/1> Sulphidic zinc ore is roasted by a fluidized-solids technique at a temperature above that at which zinc sulphate compounds are formed but below that at which sintering occurs, viz. 850-930 DEG  C.  As shown, the powdered ore concentrate is fed by screw 27 into a refractory-lined, insulated reactor furnace 11, and the ore bed 60 is maintained in a fluidized condition by air or other oxygen-containing gas delivered through pipe 20 below apertured plate 17.  A pipe 22 for starting or auxiliary fuel, thermocouples 30-32 and pressure-measuring taps 33, 34 are provided. The roasted ore escapes through conduit 25 and gases through pipe 28 to a cyclone separator.  The temperature may be controlled by the use of excess air, by employing comparatively wet ore or by injecting water or another vaporizable, non-combustible liquid into the fluidized bed, or by using auxiliary fuel.
Patent GB-628677-A (GB)
Title: Mechanical pencil
IPC: B43K21/14
Filed: 1947-07-29
Abstract: 628,677. Propelling pencils. MOST, L. J. July 29, 1947, No. 20395. Convention date, March 18, 1939. [Class 146 (iii)] In a mechanical magazine pencil a pair of spaced aligned tubular lead guide members 18 and 15 are fixed in the barrel and an internally threaded nut !4 is located between members 15 and 18 whereby the nut may be rotated relatively to said members to feed the lead. The clip 11is cut away at 13 to provide diametrically opposite openings through which the nut 14 may be rotated. The lead guide members 15 and 18, and the leads are of angular section, the latter are engaged directly by the threads 21 on the nut 14.
Patent GB-1259702-A (GB)
Title: Method and apparatus for refining molten iron or molten iron alloys
IPC: F27D27/00
Filed: 1969-04-22
Abstract: 1,259,702. Refining ferrous metal melts. NIPPON KOKAN K. K. April 22, 1969 [April 24, 1968], No.20416/69. Heading C7D. After pouring an iron or iron alloy melt into a ladle a predetermined quantity of a purifying reagent is continuously added to the upper layer of the melt whilst mechanically stirring with rods, only in said upper layer, and blowing oxygen thereon. The addition is preferably made while there is substantial inertial movement and convection resulting from the pouring. Reference is made to the removal of Cr, P and S while allowing a high C product. The rods may be made of carbonaceous, or other refractory, material. The apparatus used comprises stirring rods 3, Fig. 2, connected by a shaft 4 to a swinging frame 7 and the oxygen is blown in through lance 13 the reagent being supplied from chute 25.
Patent GB-1466373-A (GB)
Title: Cables
IPC: C21D9/62
Filed: 1974-05-09
Abstract: 1466373 Internal resistance heating of wire STANDARD TELEPHONES & CABLES Ltd 9 May 1974 Addition to 1406317 20439/74 Heading H5M [Also in Division C7] One or more of the electrically conductive pulleys 2, 5, 6 of the thermal conditioning apparatus of the Parent Specification 1,406,317, is driven by an individual constant torque motor which provides a torque sufficient to overcome rotational resistance of the pulley. Thus the speed of each conductive pulley is controlled by the speed of the wire 1 passing the pulley. Preferably only conductive pulleys 2 and 6 are driven by a constant torque motor. A removable steel contact tyre on the conductive pulley may have a surface coating of titanium carbide instead of those materials specified in the Parent Specification.
Patent GB-612607-A (GB)
Title: Aluminothermic and like exothermic processes
IPC: C22B5/04
Filed: 1944-10-23
Abstract: In aluminothermic and like exothermic processes for the extraction of metals other than iron from their compounds, preliminary heating of the reaction mixture is entirely avoided by incorporating in it alkali metal or alkali earth metal peroxides, for example, barium peroxide.  Preferably 0.25-2.0 per cent of peroxide is used.
Patent GB-810376-A (GB)
Title: Thionylcaffeyl chloride
IPC: C07D327/10
Filed: 1955-12-05
Abstract: The invention comprises thionyl caffeyl chloride of the formula <FORM:0810376/IV (b)/1> and its preparation.  In an example, a mixture of caffeic acid and thionyl chloride is refluxed for 7-8 hours, the solution evaporated under vacuum and the residual thionyl caffeyl chloride recrystallized from trichloroethylene.