baber/WOPTO huggingface dataset:
Patent GB-698017-A (GB)
Title: Improvements in bomb bay with rotary door
IPC: B64D1/04
Filed: 1951-09-25
Abstract: 698,017. Bomb dropping. MARTIN CO., G. L. Sept. 25, 1951 [Nov. 20, 1950], No. 22394/51. Class 9(ii) [Also in Group XXXIII] A bomb bay, opening to the exterior of an aircraft, is fitted with a door which carries bomb supporting and releasing means, and attaching means providing for inverting the door from a position with the bomb load located within the :bomb bay to a position located externally of the aircraft. The door 5 shown carries four bombs 41 and is fitted with detachable casters 70 whereby it may be wheeled to a point beneath the bomb bay in the fuselage 1. The door is raised into place by hoists 72 associated with fittings 73 and cables 74, 78. During the raising movement panels 25, Fig. 6, hinged to the door are swung outwards about their pivots 26 in order to withdraw bolts 14 to which the panels are connected by links 24. The bolts 14 are slidably mounted in guides 13 on the door and, when moved into position by closing the panels 25, serve toconnect the door to trunnions 7 which project from a rock shaft 8. The latter is journalled in bearings in the fuselage and is adapted to be rotated through 180 degrees, at a suitable moment prior to the release of the bombs, in order to bring the bombs to a position beneath the door. As shown in Fig. 10 the bomb release mechanism includes hooks 53, 59, for engaging the bomb lugs 55, 61 and eyes 54, 60 on these hooks for hooking over pivoted hooks 45, 46 which are adapted to be released by solenoids in a known manner. The forward hook 59 is on a pivoted arm 58 and, when the bomb is released and is thrust downwards with considerable velocity by pistons 51, serves to limit rearward movement of the bomb until it has moved some distance clear of the aircraft. In a modification a single large bomb is carried by the door, and in another modification the door carries a plurality of rockets.
Patent GB-224989-A (GB)
Title: Interchangeable handle for mops, sweepers and all kinds of floor cleaners and polishers
IPC: A47L13/255
Filed: 1923-09-06
Abstract: 224,989. Barton, J. W., (Channel, C. A.). Sept. 6, 1923. Pivoted handles with clamping- devices for mops and the like.-The handle of a mop, sweeper, floor polisher, or the like is provided with a spring clip for engaging a small rod i fixed in lugs f stamped up from the base e of the mop &c. The spring clip b may be fixed in a slot in the handle a by a rivet c. The turned-up lugs f are strengthened by a plate g having wings h embracing the lugs f.
Patent GB-770277-A (GB)
Title: Amino-propanediols and their derivatives
Filed: 1953-08-14
Abstract: The invention comprises compounds of the formula <FORM:0770277/IV(b)/1> and the synthesis thereof from p-methylsulphonyl-acetophenone by the following steps: the ketone is halogenated to give a p-methylsulphonyl-phenacyl halide which is treated with hexamethylene tetramine to form a complex thereof; hydrolysis of the latter with mineral acid yields a salt of p-methylsulphonyl-a -aminoacetophenone which is then N-acylated; the product is condensed with formaldehyde (in the presence of an alkaline catalyst) to give p-methylsulphonyl - a  - acylamido - b  - hydroxy - propiophenone and the keto group then reduced; if the N-acyl group is not dichloracetyl the product is hydrolysed to 1-(p-methylsulphonyl - phenyl) - 2 - aminopropane - 1 : 3 - diol and the latter re-acylated with a dichloracetylating agent. Optical resolution may be carried out at the amino-diol stage by the formation of a salt with an optically active acid, or alternatively the N-dichloracetyl compound is esterified with succinic anhydride (in the presence of an organic base), the product resolved by means of its strychnine salt, the optically active salts converted to the free acids and the succinyl group hydrolysed off; the last step is preferably carried out with an aqueous solution of a strong alkali containing a water-miscible organic solvent at -20 DEG  to +50 DEG C.  The preferred products are the threo isomers.  The step of reducing the ketone to the secondary alcohol may be effected with nascent hydrogen (metal and acid, water or alcohol) or with an aluminium alkoxide.  The N-dichloracetylation may be brought about by a dichloracetic ester, halide or anhydride, or by chloral cyanhydrin in the presence of alkali.  Examples show the production of the following compounds: p-methylsulphonyl-phenacyl bromide and its hexamethylene tetramine complex, p - methylsulphonyl - a  - amino - acetophenone hydrochloride, p-methylsulphonyl-a -acetamido-acetophenone, p - methylsulphonyl - a  - acetamido - b  - hydroxypropiophenone (dl-form), 1-(p - methylsulphonyl - phenyl) - 2 - acetamidopropane -1 : 3-diol (dl-threo form), 1-(p-methylsulphonyl - phenyl) - 2 - aminopropane - 1 : 3 - diol (dl-threo form, resolved via camphorsulphonate), 1-(p-methylsulphonyl-phenyl)-2-dichloracetamidopropane - 1 : 3 - diol (dl - threo form; l-threo form made by resolution of strychnine salt of 3-succinic ester and also by direct N-acylation of l-form of amino-diol), p-methylsulphonyl - a  - dichloracetamido - acetophenone, p - methylsulphonyl - a  - dichloracetamido - b  - hydroxypropiophenone (dl-form), p - methylsulphonyl - a  - carbethoxyamino - acetophenone, p - methylsulphonyl - a  - carbethoxyamino - b  - hydroxypropiophenone (dl-form) and 1-(p-methylsulphonyl-phenyl)-2-carbethoxyaminopropan - 1 : 3 - diol (dl-threo form).  Reference has been directed by the Comptroller to Specifications 726,495, 745,900 and 746,016.
Patent GB-899225-A (GB)
Title: Improvements in or relating to means for use in securing screws, bolts, couplings and the like
Inventor: PREST GERALD HARRY
IPC: F16B13/06
Filed: 1959-07-01
Abstract: 899,225. Wall plugs. CONSTRUCTIONAL ACCESSORIES (ISLE OF MAN) Ltd. June 22, 1960 [July 1,1959; Oct. 20, 1959], Nos. 22545/59 and 35461/59. Classes 44 and 89(1). A securing means comprises a reinforced resin tube 1 having slits at 5, and a bolt 2 having a ball or tapered head which expands the tube as it is drawn through the latter. The head may be replaced by a tapered nut, into which a stud is screwed. The reinforcement of: the resin tube comprises fibre, paper, cloth or the like, and end of the tube may have a lead-in for the bolt head or nut.
Patent GB-615152-A (GB)
Title: Improvements in or relating to rotary cutter heads, particularly for woodworking machinery
IPC: B27G13/10
Filed: 1946-07-29
Abstract: 615,152. Rotary cutter heads. WHITEHILL SPINDLE TOOLS, Ltd., and SMITH, S. F. July 29, 1946, No. 22580. [Class 145 (i)] In a rotary cutter head, particularly for woodworking, there is provided in the rear of a socket for a flat cutter, a backing member which projects outwards beyond the general periphery of the head so as to support a narrow cutting portion, and is capable of entering the groove cut by said cutting portion. In Fig. 1, a flat steel block 10 has through slots 12, receiving flat cutters 13, with narrow groovecutting tongues 15, the cutters being held by blocks 17 mounted on springs 18 and urged into clamping position by nuts 20 and studs 19. Each tongue 15 is supported by a backing member comprising a head 25 narrower than the tongue and carried by a stem 22 held in a bore 23 by a screw 29. In Fig. 4, the backing member 21b enters a bore 35 which intersects the cutter slot 12; the backing member may be held by a screw 38, or it may be threaded into the bore, being then prevented from turning by a flat side engaging the cutter. The cutters may be replaced by moulding &c. cutters.
Patent GB-676275-A (GB)
Title: Improved wet running centrifugal clutch
IPC: F16D69/02
Filed: 1950-09-14
Abstract: 676,275. Friction clutches. KREIS, F., and S.I.B.A. SOC. ITALIANA BREVETTI AUTOMOBILISTICI AR.L. Sept. 14, 1950 [June 15, 1950], No. 22622/50. Class 80 (ii). A , centrifugally operated friction clutch runs immersed in oil and has grooves in one or both of its radially engaging friction surfaces to drain away the oil from between them. A driven drum 1 and a pinion 2 are rotatably mounted on a driving shaft 6. Guide pins 4 on the shaft 6 carry segmental weights 3, with friction linings 10, urged radially inwards by springs 11 and outwards by centrifugal force. The linings 10 are formed with (preferably helical) grooves 14. Similar grooves may be alternatively or also provided in the drum 1, in which case ducts connect the bases of these. grooves to the outside of the drum.
Patent GB-1365043-A (GB)
Title: Cooking and canning of food products
IPC: B65B55/02
Filed: 1973-05-11
Abstract: 1365043 Canning food products H J HEINZ CO 11 May 1973 [12 May 1972] 22638/73 Heading A2D A method of cooking and canning food comprises sterilizing the food by heating, charging the food into containers within a first enclosure filled, at least in the zone of charging, with saturated steam at a temperature at least equal to the temperature of the food, transferring the filled containers to a chamber filled with air at a pressure equal to that of the steam in the first enclosure, sealing the containers in this chamber and charging the sealed containers to a second enclosure. The second enclosure is filled with saturated steam at a temperature and pressure equal to that of the saturated steam in the first enclosure and the same pressure as the air in the chamber, and the containers are held in this enclosure for a period of time sufficient to replace any heat lost by the containers in the chamber, and to effect complete sterilization of the containers and any air or air-exposed product in the containers. The containers are then discharged from the second enclosure. The steam in the enclosures is preferably at a temperature within the range 270-280‹F. The air in the chamber is preferably at a temperature not exceeding 100‹F and a pressure of 30 psig. The first and second enclosures may each be in open communication with the chamber so that a thermal barrier exists between the enclosures and the chamber. A suitable apparatus is shown in plan form in Fig. 1 wherein raw food is cooked in kettle 10 and sterilizer 16 and, at about 270‹F is passed to filling station 18. Empty containers are passed via pocket valve 26 to first enclosure 24 in which is maintained a saturated steam atmosphere. The containers are advanced to the filling station and there filled with a predetermined amount of food. The filled containers are then advanced to seaming chamber 28 wherein lids supplied via lid-feeding device 30 are attached to the containers. The sealed containers are then advanced to a second enclosure 32 which is elevated above the first enclosure. After remaining in enclosure 32 for a time sufficient to achieve total sterilization, the containers are passed to coolers 36 and 40.
Patent GB-314258-A (GB)
Title: Improvements in toe stalls
IPC: A43B23/28
Filed: 1928-08-04
Abstract: 314,258. Haffenden, J. Wilson-. Aug. 4, 1928. Toe stalls.-A toe stall is made of knitted woven or other material in tubular form with one end A closed and the other end B open. Adjacent the open end is a constricted part C to increase the grip on the toe. The toe stall prevents wear of the ordinary sock.
Patent GB-744981-A (GB)
Title: New cyclopentanophenanthrene derivatives and method for the preparation thereof
IPC: C07J75/00
Filed: 1952-09-10
Abstract: The invention comprises allopregnane3b  : 11a  : 17a  : 21 - tetrol - 20 - one 21 - monoacetate, together with a process for the preparation of an allopregnane-17a  : 21-diol3 : 11 : 20-trione 21-lower fatty acid acylate which comprises treating 22-isoallospirostan3b  : 11a -diol with a lower fatty acid anhydride under pressure at a temperature of approximately 200 DEG  C., to form a D  20(22)-allofurostene3b  : 11a  : 26-triol triacylate, thereafter oxidizing said triacylate with chromic anhydride in acetic acid, saponifying the oxidation product with alumina to form a D 16-allopregnene3b  : 11a  - diol-20-one diacylate, hydrogenating the D  16-compound to form the corresponding allopregnane - 3b  : 11a  - diol - 20 - one diacylate, enolizing the allopregnane-3b  : 11a -diol-20-one diacylate to form the corresponding 20-enol acylate, oxidizing this with an aromatic per acid and saponifying the product to form allopregnane - 3b  : 11a  : 17a  - triol - 20 - one, monobrominating this compound to form the 21-bromo derivative, treating the 21-bromo compound with sodium iodide and the potassium salt of a lower fatty acid to form the 21-monoacylate of allopregnane - 3b :11a :17a:21-tetrol-20-one, and oxidizing said tetrol with a mild oxidizing agent to form allopregnane - 17a :21 - diol - 3:11:20 - trione 21-lower fatty acid acylate. In an example: 22 - isoallospirostan - 3b :11a  - diol is heated with acetic anhydride and the resultant D 20(22) - allofurostene - 3b :11a :26 - triol triacetate oxidized with chromium trioxide to D 16 - allopregnene - 3b :11a  - diol - 20 - one diacetate, which is hydrogenated in ethyl acetate using palladized barium sulphate to produce allopregnane-3b :11a -diol-20-one diacetate.  This compound is heated with acetic anhydride containing p-toluene sulphonic acid and the resultant D 17(20) - allopregnene-3b :11a :20 - triol triacetate treated with methanolic sodium hydroxide giving allopregnane - 3b :11a :17a  - triol 20 - one, which is brominated in chloroform solution to 21 - bromo - allopregnane - 3b :11a :17a  - triol-20-one.  Treatment of the bromo compound with sodium iodide in acetone and then potassium bicarbonate in acetic acid produces allopregnane - 3b :11a :17a :21 - tetrol - 20-one 21-mono acetate, which is oxidized either with (a) chromic anhydride in acetic acid, or (b) N-bromoacetamide in pyridine to yield allopregnane - 17a :21:diol - 3:11:20-trione 21-acetate. Specifications 721,953 and 735,429 are referred to.
Patent GB-1218156-A (GB)
Title: Stoppers
Inventor: LEBIGRE LUCIEN PIERRE
IPC: B65D41/48
Filed: 1969-05-05
Abstract: 1,218,156. Tamper proof closures. ETABS. GIRAUD, PROVOST & CIE. 5 May, 1969, No. 22745/69. Heading B8T. A flexible stopper is applied to a container 17 by forcing its skirt 10 into the container neck, whereupon guide faces 23 and 24 of a guarantee ring 13 of the stopper progressively engage a bead 18 on the container neck, guiding it to its final position, the stopper then being removable only after pulling a tongue (14), Fig. 1 (not shown), which breaks the ring 13 at a groove (25) and successively at junction points 15 which connect the ring 13 to a peripheral portion 12 of the stopper. The skirt 10 can be arranged to receive a dehydrating substance.
Patent GB-461266-A (GB)
Title: Improvements in or relating to typographical slug casting machines
IPC: B41B11/38
Filed: 1935-08-14
Abstract: 461,266. Type-bar - making machines. LINOTYPE & MACHINERY, Ltd., HAYWARD, A. S., and DOUGALL, V. Aug. 14, 1935, No. 22866. [Class 100 (iii)] Quadding-apparatus ; justifying matrices.-To avoid excessive spacing between the words when quadding or centring, the movement of the justification bar is limited by means which are rendered operable or inoperable by means associated with the setting of the quadding or centring devices and become operative when the movement of the jaw-control rod exceeds a predetermined amount. In the apparatus shown in Fig. 1, a spring-urged lever a, for engaging slots b in the rods c, d that actuate the justification bar, is retained in normal position by a bolt f having an inclined slot which co-operates with a rocking arm g in connection with the quadding-lever h. The lever a co-operates with a block k adjustably secured to the jaw-control rod l. When the machine is set for quadding or centring, the bolt f is released and, if the line-defect exceeds a predetermined amount, the lever a is selected from the block k and swings into the slots b to limit movement of the justification rods c, d. In the apparatus shown in Fig. 8, a stop v for the justification rod is secured to a shaft u connected by spring-urged linkage t, s to a shaft p which is provided with arms a<1>, r co-operating with an adjustable collar c<1> on the jaw-control rod d<1>, and a cam o on the quadding- lever m respectively. If the quadding-lever is raised, descent of the jaw-control rod permits the stop v to swing into the path of a roller y on the justification rod to limit movement thereof.
Patent GB-206946-A (GB)
Title: Improvements in the manufacture of brown flour, and of brown bread therefrom
IPC: A21D2/38
Filed: 1922-08-23
Abstract: 206,946. Ryle, W. T. Aug. 23, 1922. Cereal preparations.-Brown flour is prepared by partly milling wheat, separating and roasting the germ, and adding oatmeal thereto during roasting. The remaining components of the wheat are added and the mixture ground to flour. Salt may be added. According to the Provisional Specification, wheat flour, wheat meal, semolina, or middlings may be added to the germ during roasting.
Patent GB-166828-A (GB)
Title: Improvements in knotless netting suitable for fishing and like purposes
IPC: A01K75/00
Filed: 1920-08-07
Abstract: 166,828. Hitaka, Y. Aug. 7, 1920. Netting.-Knotless string or cord nets for fishing &c. are produced by drawing between two strands A, B of one cord the strand C of an adjacent cord, then drawing the strand B in a similar manner between the cords C, D, crossing the strands A, B with the strands C, D respectively, and finally drawing the strands B, C again between the pairs C, D and A, B respectively.
Patent GB-288479-A (GB)
Title: Improvements in boiler furnaces
Filed: 1927-09-05
Abstract: 288,479. Puffett, H. Sept. 5, 1927. Smoke, consuming; baffles; firebridges.-A perfora,ted refractory wall 8 is erected behind the finebridge 3 of a furnace to form a secondary combustion chamber 7. The bridge is formed of metal bars of the kind described in Specifications 23888/13 and 131,821 and the firebars are preferably of the kind described in Specification 237;526. Air enters the secondary combustion chamber through a door 12. The area of the openings in the wall 8 is not less than the area between the top of the firebridge and the furnace wall. The wall 8 may be formed of brickwork or may be moulded, and it may extend to the bottom of the flue instead of being mounted on the supporting plate 5.
Patent GB-598780-A (GB)
Title: Improvements in or relating to closures for clean-out openings in the tubular elements of heat transfer apparatus or in other fluid circulating conduits
IPC: F22B37/10
Filed: 1945-09-10
Abstract: 598,780. Pipe closures. SUPERHEATER CO., Ltd. (Superheater Co.). Sept. 10, 1945, No. 23263. [Class 99 (ii)] A closure for the clean-out opening 3 of a heat-exchanger or the like consists of a plug with a head-piece 6 and a stem 5 threaded at its outer end, sealing rings 4, an abutment member 7, a spring 10 of incomplete ring form, and a nut 13 with spigot portion 14 which engages the threads on the stem ; the spring 10 is located in a groove 8 in the bore of the cylindrical part 3 which is cut away at 9 to accommodate the bent back ends 11 of the spring. On tightening the nut 13, its spigot portion enters the spring and causes the sealing rings to be deformed against the wall of the opening 3 ; the spring, either by frictional engagement of its ends 11 with the spigot, or by the said ends engaging in flutes formed on the spigot, prevents unintentional rotation of the nut ; it also holds the plug against any outward pull.
Patent GB-719283-A (GB)
Title: Improvements in or relating to a method of producing finely divided magnetic iron oxide
IPC: G11B5/706
Filed: 1952-09-17
Abstract: Iron oxide containing minor amounts of cobalt is produced by adding an oxidizing agent and a soluble cobalt compound to an aqueous solution of a ferrous salt, preferably in a ratio of 1-6 atomic per cent. of cobalt to 99-94 atomic per cent. of iron, adding sodium or potassium hydroxide to precipitate an iron compound having an oxidation level of more than 2 to not more than 3, separating the precipitate, washing, drying and, if desired, heating in air. Preferred features include rapid and intimate mixing of the hydroxide with the iron-containing solution; heating the dried precipitate to 200-300 DEG C. in air to produce a modified g -Fe2O3; when the preferred oxidizing agent, ammonium nitrate, is used, mixing the iron-containing solution with the alkali-metal hydroxide solution at less than 90 DEG C. and keeping the so-formed precipitate at more than 75 DEG C. for about 30-90 minutes in the solution in which it is produced.  Other oxidizing agents specified are hydrogen peroxide and ammonium persulphate.  Examples are given.
Patent GB-599864-A (GB)
Title: Improvements in or relating to the halogenation of organic compounds
IPC: C07C17/12
Filed: 1945-09-10
Abstract: Chlorination, in the aromatic nuclei, of compounds of the general formula <FORM:0599864/IV/1> (wherein R and R1 represent alkyl groups or hydrogen, the number of alkyl groups not exceeding four in each nucleux and their position being unrestricted, and n represents an integer from 1 to 6 inclusive) is carried out at 20-25 DEG  C. in the presence of a Friedel-Crafts catalyst of mean activity and a solvent which does not react with chlorine.  The process may be operated continuously by continuous introduction into a vat of the hydrocarbon dissolved in the solvent and of the catalyst (preferably also in a solvent which does not react with chlorine, advantageously the product of the reaction), and continuous extraction of the product of reaction and separation of the solvent, and advantageously with the step of washing the evolved hydrochloric acid vapours in a column by means of a stream of the hydrocarbon to be chlorinated.  The products are useful as plasticizers for rubber.  In examples: (1) chlorine is passed at 20-25 DEG  C. into a solution in carbon tetrachloride of anhydrous ferric chloride and the product (mainly a mixture of dibenzyl, methyldibenzyl and dimethyldibenzyl) obtained by distilling the condensation product of symm.-dichlorethane with a mixture of benzene and toluene; (2) the corresponding product from 1 : 3-dichlorpropane (or 1 : 4-dichlorobutane, 1 : 5-dichloropentane or 1 : 6-dichlorohexane) is similarly chlorinated; (3) a solution of dibenzyl in carbon tetrachloride is fed downward through a column into a vat provided with a stirrer and cooling means, into which are also introduced a dispersion of ferric chloride in a dichlorodibenzyl, partly through the column and partly direct, and chlorine through a pipe dipping to the bottom of the vat, and the reaction product (dichlorodibenzyl) is continuously withdrawn and separated from the solvent by steam distillation of the latter, whilst the hydrochloric acid evolved passes out via the column, in which it is scrubbed by the incoming solution of dibenzyl.  As alternative solvents for the catalyst are specified ketones and chlorinated aliphatic hydrocarbons.ALSO:As plasticizers for rubber may be employed the products obtained by nuclear chlorination, at 20-25 DEG C. in the presence of a Friedel-Crafts catalyst of medium activity and a solvent which does not react with chlorine, of compounds of the general formula <FORM:0599864/V/1> (wherein R and R1 represent alkyl groups or hydrogen, the number of alkyl groups not exceeding four in each nucleus and their position being unrestricted, and n represents an integer from 1 to 6 inclusive), e.g., the products obtained by distillation of the condensation products of a mixture of benzene and toluene with symm.-dichlorethane, 1 : 3-dichloropropane, 1 : 4-dichlorobutane, 1 : 5-dichloropentane or 1 : 6-dichlorohexane.