baber/WOPTO huggingface dataset:
Patent GB-744803-A (GB)
Title: Improved process for producing sodium acetylide and improved sodium acetylide product
IPC: C07F1/04
Filed: 1953-11-20
Abstract: Methyl acetylene is produced by interacting dimethyl sulphate and a monosodium acetylide of high purity (see Group III).  It is alleged that using such a monosodium acetylide both methyl groups of the dimethyl sulphate are utilized and a quantitative yield results, the reaction being <FORM:0744803/IV(a)/1> In example I dimethyl sulphate is added to monosodium acetylide and the temperature allowed to rise to ca. 110 DEG  C.  The temperature is then raised to 140 DEG  C. to give a total reaction time of 2 1/2 hours.ALSO:Monosodium acetylide in a high state of purity, preferably greater than 99 per cent, is produced by interacting sodium of particle size less than 400 microns and dry acetylene free from acetane and having an oxygen content of less than 0.3 per cent in an inert medium at 60-110 DEG C., with vigorous agitation.  The sodium preferably has a particle size of 5-100 microns and predominantly less than 25 microns.  The reaction may be carried out at atmospheric pressure.  Inert media specified are xylene, n-butyl ether, di n-butyl carbitol, dioxane, mesitylene, tetraethoxy propane, and kerosene.  Toluene may also be used provided the reaction is carried out under pressure.  The acetylene may be purified by passing through anhydrous calcium sulphate to remove moisture and activated alumina to remove acetone.  Dispersing agents, e.g. a stearate or oleic acid may be employed.  The sodium acetylide product is freed from residual solvent by vacuum pumping at increased temperature or by purging with an inert gas such as argon or nitrogen, or with acetylene.  The process may be batch or continuous.
Patent GB-1009495-A (GB)
Title: Apparatus for guiding and positioning longitudinal wires in the production of weldedwire screens
IPC: B23K11/00
Filed: 1962-08-23
Abstract: 1,009,495. Making welded screens. STEINHAUS G.m.b.H. Aug. 23, 1962 [Sept. 7, 1961], No. 32356/62. Headings B3A and B3R. In apparatus for guiding and positioning wedge section longitudinal wires in the making of welded wire screens the longitudinal wires are guided between spacing members and a bearing surface, the bases of the wires being pressed on to the bearing surface and the opposite sloping surfaces being pressed into the spacing members. The longitudinal wires may be of triangular or trapezoidal section and are moved forwards equal to the spacing of the transverse members after each welding operation. In an embodiment a hardened thrust plate 1 is carried on a cross-piece 3 between uprights 2 and a shaft 6 carrying discs 7 is rotatable in slide blocks 4 mounted on the uprights. The periphery of each disc is grooved to engage a triangular section longitudinal member and the longitudinal members are supported on the plate 1. The shaft 6 and discs 7 may be replaced by a roller, toothed rack or screw-threaded spindle. The longitudinal members may have spacing projections thereon.
Patent GB-963480-A (GB)
Title: Improvements in and relating to hinged joints
Inventor: PEARSON STANLEY JOHN
IPC: E05D7/12
Filed: 1960-09-21
Abstract: 963,480. Hinges. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 15, 1961 [Sept. 21, 1960], No. 32440/60. Heading E2F. A hinged joint comprises a cylindrical hinge pin 1 adapted to removably embrace a rib portion 12 of a member 3, and a socket 2 having a cylindrical bore 13 in which the pin is rotatable, the socket having an axial slot 15 through which a further portion of the member 3 passes as the pin embracing the rib portion is introduced axially into the bore. The member 3 may be a hollow thin-walled body acting as a cover or door for a member 4, such as a cupboard or cabinet, to which the socket is secured. The pin may comprise two identical mating parts 5 (Fig. 1) which form, when placed together (Figs. 3, 4), a cylindrical body 6 having a rectangular axial slot 8 to receive the rib 12, or alternatively may be made in one piece from resilient material and have a longitudinal slot through which the rib can be inserted into the slot 8. The rib 12 is formed by providing recesses 10, 11 in the member 3 or by rigidly securing a suitably shaped projecting part to the edge of the member, and the end 16 of the pin is adapted to overlap the edges of the walls of the recesses to exclude dust. An enlarged head 7 on the pin holds the latter in its correct position in the socket, and a closed slot 14 diametrically opposite the slot 15 receives the edge of the member 3 during the introduction of the pin.
Patent GB-786690-A (GB)
Title: Electrolytic recording papers
Inventor: STAND MAXIMILIAN
IPC: B41M5/20
Filed: 1955-11-14
Abstract: 786,690. Electrolytic recording paper. AIR ASSOCIATES, Inc. Nov. 14, 1955, No. 32508/55. Class 96. Paper &c. for moist electrolytic recording is impregnated with a solution of an arylhydroxide having at least one hydroxy group on an aromatic nucleus, e.g. pyrogallol, catechol, resorcinol, hydroquinone, benzene-pentol or-tetrol, phloroglucinol, hexahydroxybenzene, o - hydroxyhydroquinone, or α- or #-naphthol, and also an activating electrolyte, e.g. lithium-, sodium-, or potassium-, bromide, chloride, iodide, nitrate, sulphate, &c., and a lake-forming metal complex, e.g. a ferric salt such as the nitrate, chloride or sulphate, together with tartaric, citric, gluconic or oxalic acid, hydrazine hydrochloride, or thiourea, &c. Alternatively metal ions, e.g. of chromium, nickel, copper, vanadium, cobalt, or cerium may be included in the complex. Impregnation may be facilitated by inclusion of an anionic, cationic, or nonionic detergent. The paper may be maintained at 25 to 35 per cent moisture content, e.g. by use of a solvent mixture of water and methanol, propanol, or isopropanol.
Patent GB-1438510-A (GB)
Title: Composite roll
IPC: B21B27/02
Filed: 1973-07-09
Abstract: 1438510 Rolling mill rolls; jointing MORGARDSHAMMAR AB 9 July 1973 [7 July 1972] 32541/73 Headings B3M and B3V A composite rolling mill roll, Fig. 3, includes a ring 1 of wear-resistant material, e.g. cemented carbide or ceramic, mounted on a driving shaft or sleeve 2 and held in place by support rings 3 acting against its side surfaces. The ring 1 is a push fit on the shaft or sleeve, but the support rings are positioned by a force fit or shrinkage fit such that they produce a compressive force on the ring 1. The support rings may be relieved both axially and radially, Fig. 6, adjacent the ring 1, and may be tapered to produce a radial compressive force. Alternatively, Fig. 7, a tapered sleeve 4 may hold the three rings in place. One of the support rings 3 may be formed integrally with the shaft or sleeve 2.
Patent GB-307699-A (GB)
Title: Improvements in or relating to ladies' hand bags
IPC: A45C3/06
Filed: 1928-11-07
Abstract: 307,699. Abbott, Ltd., G. S., and Mott, F. C. Nov. 7, 1928. Hand bags. - To render it suitable for carrying damp toilet &c. articles, a lady's hand bag has one or more of the compartments a lined with oiled silk or other waterproof material, pockets c of similar material being permanently or removably attached to the waterproof lining.
Patent GB-506395-A (GB)
Title: Improvements in the manufacture and production of poly-azo dyestuffs
IPC: C09B33/147
Filed: 1937-11-25
Abstract: 506,395. Dyes. JOHNSON, G. W.(I. G. Farbenindustrie Akt.-Ges.) Nov. 25, 1937, No. 32548. [Classes 2 (iii) and 15 (ii)] Dis- and polyazo dyes are made in substance or on the fibre by coupling diazo compounds of aromatic amines which may contain azo groups with o-hydroxyarylcarboxylic arylides containing in the arylide residue at least one SO3H group and of the general formula wherein Ar=arylene radicles containing a least two condensed nuclei and B1, B2 and B3 =phenylene radicles. The arylides have affinity for animal and vegetable fibres and may be used for producing level shades on mixed materials especially of wool and regen-. erated cellulose. In an example a mixed fabric of wool and staple fibre (viscose silk).is treated with the bisarylide from 2 : 3-oxynaphthoic acid and 1-amino-3-sulpho-4-(4<11>-amino- 2<11>- sulphophenyl - 4<1>-aminophenyl) - aminobenzene and developed with diazotized 4-amino-3- or 4<1>-methoxydiphenylamine (navy blue) or 4-benzoylamino-2 : 5-diethoxyaniline (blue) or 4-chlor-2-aminodiphenylether (red). The corresponding arylide from 3-hydroxydiphenyleneoxide-2-carboxylic acid may be similarly used; .other acids specified are 6-methoxy-2-naphthol- 3-carboxylic acid, 2 - oxyanthracene-3-car - boxylic acid, 2-oxycarbazole-3-carboxylic acid, 7 : 8-benzocarbazole-Bz.3-hydroxy-2-carboxylic acid. Specification 260,339, [Class 2 (iii)], is referred to. The arylides may be made by reacting the acid (2 mols.) or its chloride, o-acyloxychlorides or esters with an N : N<1>-di-(aminophenyl) diaminobenzene sulphonic acid (1 mol.). The diamines may be prepared by condensing phenylene diamines with p- or o-nitrochlorobenzene sulphonic acids which may be substituted by alkyl, alkoxy or halogen, and reducing. According to the Provisional Specification the coupling components are bis-o-hydroxyarylcarboxylic acid diarylides which contain sulphonic groups. and contain at least one diphonylamine radical in the arylide residue.
Patent GB-1091585-A (GB)
Title: Thermosetting resin and catalyst
IPC: B22C1/22
Filed: 1965-07-30
Abstract: <FORM:1091585/C3/1> A thermosetting resin composition which may be used as a foundry core binder comprises: (i) formaldehyde or a compound yielding formaldehyde under conditions of condensation; (ii) furfuryl alcohol or furfuryl aldehyde; (iii) urea or a substituted urea together with an inorganic or organic acid catalyst, the relative proportions of (i), (ii) and (iii) falling within the hatched area of Fig. 2 of the drawings; and (iv) a minor amount (e.g. 0.1 to 3.0% by weight of (i), (ii) and (iii) of a lipophilic surface active agent having at least one hydrophilic group in its molecule, e.g. sorbitan trioleate.  The resinous composition may be prepared by forming a liquid mixture of (i), (ii) and (iii) and adding organic acid (e.g. acetic acid) to bring the pH to 5 to 6.  The mixture is then heated (e.g. at 195-208 DEG  F.) for from 1.5 to 2.5 hours to partially polymerise (i), (ii) and (iii); a base (e.g. an amine) is then added to raise the pH to at least 6.9.  The predominantly lipophilic surface active agent may be added during or after the addition of base.  The catalyst may be prepared by reacting a mineral acid (e.g.HCl) with urea, at a temperature sufficient to bring about reaction but insufficient to decompose the resulting salt, until the pH is at least 7.  An organic dye, a polysaccharide or a soluble protein may also be added to the catalyst solution, in an amount of 0.001 to 0.1% by weight of the solution.  From 0.5 to 1.5% by weight of a calcium compound, e.g. CaCl2 and from 0.005 to 0.5% by weight of NH4NO3 may also be added.  The relative proportion of (i), (ii) and (iii) are preferably within the doubly hatched area of the drawing.
Patent GB-425884-A (GB)
Title: Process for producing an oleoemulsion of graphite
IPC: C10M177/00
Filed: 1934-11-13
Abstract: Graphite oxides are ground with a liquid of low surface tension such as petroleum or carbon tetrachloride and the paste thus produced is mixed or ground with addition of mineral or vegetable oil.  The first liquid is then removed by distillation, and the product is stabilized by further grinding, optionally in presence of a soluble dispersing agent such as camphor and amyl alcohol.
Patent GB-160932-A (GB)
Title: Improvements in audible and visible electric signalling systems for calling attendants
IPC: G08B7/06
Filed: 1919-12-30
Abstract: 160,932. Ely, M. V., and Foster Engineering Co., Ltd. Dec. 30, 1919. Systems of wiring indicators or annunciators.-Relates to systems for calling attendants, of the kind wherein each cabin or room is connected to the indicator board by switch mechanism which maintains the signal circuit closed until the arrival of an attendant in answer to the call. Each cabin A, B, C, D is fitted with a two-way calling-switch a, and a two-way cancelling switch b, so interconnected with each other and the signal circuits that when the calling-switch is thrown upwards, as shown in cabin C, a cabin lamp c, a local group lamp e, and a distant group lamp f on the indicator board E, together with a buzzer h, remain in operation until an attendant arrives to push down the callcancelling switch b; this automatically leaves the switch a ready for a succeeding call, on being moved downwards, owing to the alternate wiring of the switches. A change-over switch i on the indicator board causes the audible signals to be transferred, if desired, to a night-attendant's or master indicator board H. The construction of the signal switches a, b is shown in Fig. 2. A sliding push-bar l carries two inset metal plates q, q<1> which connect the contacts o, p and o', p<1>, or o, n and o<1>, n<1> according as the push-bar is in its lower of upper position. The two centre-contacts o, o<1> correspond to the two-point side of the diagrammatic switches a, b, Fig. 1.
Patent GB-337194-A (GB)
Title: Improvements in steering gear for automobiles and the like
IPC: B62D3/06
Filed: 1929-10-30
Abstract: 337,194. Chandler, F. F. Sept. 30, 1929, [Convention date]. Steering-gear comprises a spirally-grooved actuating member 2, a rocker arm 5<a>, and a pin 4 on the arm engaging the actuating member, the pin being rotatably mounted in the rocker arm and means being provided for preventing axial movement of the pin in either direction when engaged with the actuating member. Jamming of the gear caused by axial movement of the pin is thus prevented. In the construction shown in Fig. 3 the pin 4 rotates in roller bearings 6 in the arm, the outer members 6<a> of the ball races being spaced apart and located by a ring 5b embedded in a groove in the arm, and the inner members of the races being secured between the head of the pin and a nut 4<c> on the shank thereof. Thus. axial thrust on the pin in either direction is taken up by one or other of the ball races and axial movement of the pin is prevented. Modifications are described in which ball bearings are used instead of roller bearings. Specification 234,584 is referred to.
Patent GB-968496-A (GB)
Title: Anti-rebound device for a printing hammer
IPC: B41J9/42
Filed: 1963-08-22
Abstract: 968,496. Typewriters. NATIONAL CASH REGISTER CO. Aug. 22, 1963 [Oct. 11, 1962], No. 33204/63. Heading B6F.  An anti-rebound device for a type character printer comprises a printing hammer 10, Fig. 1, urged into printing position by a spring 30 and an anti-rebound pawl 32 mounted adjacent the hammer and having a non-locking portion 34a and a looking portion 34c so formed and cooperating with projection 38 on the hammer that when the hammer is urged by the spring the projection co-operates with the non-locking surface 34a to permit the hammer to move freely into the printing position, whereas on rebound the projection engages the locking portion 34c to lock the hammer against making a successive impact with a type carrier 13. Type-bar machines; type-bar actions.-The printer comprises a plurality of type bars 13, Fig. 1, each associated with a hammer 10 and pivoted at its lower end to a differential mechanism (not shown) so that a digit value entered into the printer may be represented by a particular type member 17. The type bars are movable vertically in slotted guides 14, 15 with respect to a platen 16. Hammer-impression arrangements.-In operation the hammer 10, Fig. 1, is released by a hammer latch 18 via an interponent 20 rocked into engagement with a step 18a on the latch, whereupon the spring 30 urges the hammer into printing position and the projection 38 is driven along the non-locking portion 34a of the antirebound pawl 32, jumps the recess of the locking portion 34c separating the non-locking portion 34a from a second portion 34b and positions itself above the said portion 34b (Fig. 2, not shown). When the hammer 10 recoils from its impact with the selected type member 17, Fig. 3, the projection 38 on the hammer will move backward with the hammer and off the second portion 34b into alignment with the recess in the locking portion 34c in turn permitting the pawl 32 to rock anti-clockwise under the influence of the spring 35 to engage the projection 38. To permit the projection 38 to clear the locking portion 34c when the hammer moves initially into printing position, the spring 30 is made much stronger than the spring 35 of the pawl 32, which is relatively weak and also the curvature of the portion 34b is of a smaller radius than that of the non-looking portion 34a. The hammer 10 is reset by a bail 28 mounted on pivotal restoring arms 29, Fig. 1, oscillated by operating arms 23 which in turn are rocked by a cam lever 25 secured on a drive shaft 24. In another embodiment (not shown) the antirebound pawl may be mounted above the projection 38 and the pawl urged into engagement with the projection under gravity. Specification 693,659 is referred to.
Patent GB-429483-A (GB)
Title: Improvements in or relating to dartboards
IPC: F41J3/00
Filed: 1934-11-19
Abstract: 429,483. Targets. WRIGHT, W., 38, Bank Street, Ashford, Kent. Nov. 19, 1934, No. 33265. [Class 132 (iii)] A dartboard or archery target comprises a sheet 1 of woven material rolled upon itself or upon a core into a cylinder 4 which is compressed in a mould or by passing through rollers and inserted into, or wrapped in, a metal or compressed fibre container 5. The threads 2, of coconut fibre, straw, bass, hemp, grass or wire, are more closely spaced than the threads 3, of string, cotton or wire, and the sheet 1 is rolled so that the threads 2 are parallel to the axis of the cylinder 4. The cylinder 4 and container 5 are sliced up in planes normal to the axis of the cylinder. Further sections 6, 8, Fig. 4, of woven material and further containers 7, 9, may be added, the containers 7 and 9 defining the scoring areas of the dart-board. The threads 3 may be removed if desired. Adjacent sections of the board may be separated by metal tubes 10 and 11, Fig. 5, for relative rotation if one part becomes damaged before other parts. The dial may be formed by radial members 13, Fig. 6, with spikes 14, stamped out of sheet metal, or a complete dial 15, Fig. 3, may be moulded or stamped out of sheet metal and forced into a board or soldered or spot-welded to the end or ends of one or more of the metal tubes 5, 7 or 9, Fig. 4. Relative axial movement between the sections 4, 6 and 8 is prevented by circular lips 16 and 17, Fig. 7, or turn buttons 19, Fig. 8, or flat bolts 20, Fig. 8, or cross arms 21, 22, Fig. 8, screwed to the sections. The woven material may be impregnated with a binder such as rubber solution before, during or after being rolled or folded, or complete dartboards may be immersed in a solution of binding material and subsequently dried.
Patent GB-1321058-A (GB)
Title: Deionisation of water
IPC: C02F1/50
Filed: 1970-07-09
Abstract: 1321058 Ion exchange ROHM & HAAS CO 9 July 1970 [9 July 1969] 33416/70 Heading B1J Water is softened in bed 1 by a strong cation exchange and after passing through deaerator 4 the major portion is passed through a weakly basic exchange 8 and is added to a minor portion of the deaerated softened water to be treated in bed 10 which is strongly basic. The ratio of portions is chosen to give a mixed water stream ratio of Si/mineral acid of 6/4 to 9.8/0.2. (For Figure see next page)
Patent GB-211611-A (GB)
Title: Improvements in machines for wrapping loaves of bread, or like articles, in paper, or the like material
IPC: B65B25/16
Filed: 1922-12-07
Abstract: 211,611. Rose, W., and Rose Bros. (Gainsborough), Ltd. Dec. 7, 1922. Packeting by wrapping-up.-Relates to machines for wrapping loaves of bread or similar articles in tissue paper, waxed paper, or the like. The loaves &c. 2, Fig. 1, are fed by a belt 3 against a stop plate 11 and the foremost is raised by a plunger 13, carrying with it a wrapper 22, which has been placed by hand or otherwise on cross-plates 12, 23, and folding it around the top, back, and front. A plate 21 prevents further feed of loaves when'the plunger is in the raised position. During the movement, a member 49 bears with resilient pressure on the top of the loaf and maintains the wrapper in the correct position. An adjustable rear side plate 24, mounted on a sliding member 26, bears against the rear side of the loaf, and a sliding plate 52 is advanced to fold the rear. depending portion of the wrapper on to the lower surface of the loaf. At or about the same time, the sliding member 26 is moved to the left carrying the partially wrapped loaf with it. An arm 34, pivoted at 39 to the slide, is actuated by a fixed cam-slot to move in an anticlockwise direction, carrying with it members 30, 44. The member 30 is yieldingly pivoted at 31 on a spring-urged arm 32 pivoted at 33 to the arm 34, and contacts with the front surface of the loaf as it moves forward and the members 44 make the first or top end fold, being yieldingly mounted to allow for differences in size of the loaves. A fixed part 82 of the machine folds up the forward depending portion of the wrapper, and folders 72 are advanced to make the rear end folds shown in Fig. 5. Continued movement of the slide 26 causes the front end folds to be made by folders 83, pivoted at 84, Fig. 1, and resiliently pressed inwards by springs, a slot 88 turning up the last remaining tab at the ends. The packet may pass between heated units 91 if the wrappers are of waxed paper, or between adhesive applying means, and on to a delivery belt 90.
Patent GB-1391123-A (GB)
Title: Device for fixing teeth to toothholders in earth moving machines
IPC: E02F/
Filed: 1972-07-18
Abstract: 1391123 Excavator teeth ELEMENTOS PARA TRACCION Y EXCAVACION SA 18 July 1972 [20 July 1971] 33520/72 Heading E1F [Also in Division F2] A cotter for attaching a tooth 1 to a tooth-carrier 2 in an excavating machine comprises a first portion 4 of synthetic plastics material to which is attached, at least at one end, a leaf spring 6, the leaf spring 6 having a lateral protuberance so that upon insertion of the cotter through aligned holes in the tooth 1 and carrier 2, the leaf spring 6 will be deformed until the protuberance engages a recess 9 in the carrier 2 to hold the tooth and carrier firmly together. The spring 6 may be of beryllium copper or steel or may be made of the same material as and integral with the portion 4. The spring 6 may be embedded at both ends in the portion 4 or one of its ends may be arranged to be slideable relative to the portion 4.