baber/WOPTO huggingface dataset:
Patent GB-620553-A (GB)
Title: Improvements in rivetting devices
IPC: B21J15/14
Filed: 1947-01-22
Abstract: 620,553. Riveting. ARTHUR, E. M. Jan. 22, 1947, No. 2001. [Class 83 (iv)] In a riveting-device comprising two arms 1 and 2, the arm 2 carrying an abutment 8 adapted to bear on the head of the rivet and the other arm 1 being adapted to move downwardly to clamp the work, the latter arm has a striker or punch pivotally mounted therein to effect the setting of the rivet. An arm 2 of U-shaped section has at one end an extension 2a at right angles thereto formed with a series of holes 5. An arm 1 of similar section carrying at its outer end a pivoted striker is pivoted to the extension by means of a bolt 3 passing through any one of the holes 5. The arms are urged apart by a spring 15 to the limit allowed by a bolt 16 to the upper end of which is pivoted a cam 21 bearing on the top of the arm 1. The outer end of the arm 2 contains a block 6 with a screw-threaded hole 7 adapted to receive a replaceable anvil pin 8. In operation the lower arm is held between the jaws 24 of a vice, the work is placed between the arms with the rivet head resting on the pin 8 and an arm 23 is moved to lower the arm 1 so that the side plates at the end thereof bear on and clamp the work. An upstanding portion 12 of the pivoted striker is then given blows which effect the setting of the rivet.
Patent GB-1405567-A (GB)
Title: Tube cells for flameless atomic absorption spectrophotometry
IPC: G01N21/74
Filed: 1974-01-16
Abstract: 1405567 Sample holder BODENSEEWERK PERKIN-ELMER & CO GmbH 16 Jan 1974 [26 Jan 1973] 02016/74 Heading G2J An electrically conductive tube for confirming a vapourized sample in absorption spectrography has grooves 12 along at least part of its length to prevent the sample in its liquid state from creeping.
Patent GB-677625-A (GB)
Title: An improved hammer mill
IPC: B02C13/284
Filed: 1950-01-26
Abstract: 677,625. Hammer-mills. MORITZ, J. Jan. 26, 1950 [Jan. 27, 1949], No. 2065/50. Class 59 In a hammer mill a series of rotating cylindrical rollers are disposed along the periphery of the zone of action of the hammers, and cleaning members are provided between each two consecutive rollers. As shown, in addition to the impact piece F, rollers D are located at the periphery of the disc-and-hammer assembly A, B, C, each roller being rotatably mounted in guides fixed upon cheeks G attached to the mill casing. The rollers are slowly rotaetd by means not shown either in the same direction or in different directions. Between consecutive rollers is placed a scraper bar E arranged to automatically clean the rollers. The latter may be fluted or provided with grooves and the scrapers which clean them are mounted in spring members which constantly urge the scrapers against the fluted or grooved surfaces.
Patent GB-557317-A (GB)
Title: Manufacture of derivatives of laevo-rotatory ª‡-hydroxy-ª‰, ª‰-dimethyl-gamma-ªÃ-butyro-lactone
IPC: C07D307/33
Filed: 1941-02-17
Abstract: 557,317. Lactone esters; pantothenic acid. MERCK & CO., Inc. Feb. 17, 1941, No. 2105. Convention date, March 7, 1940. [Class 2 (iii)] Esters of l-α-hydroxy #.# dimethyl-γ-nbutyrolactone are made by reacting the lactone with an organic acid anhydride or halide. Acid agents mentioned are acetic anhydride, phthalic anhydride, p-nitrobenzoyl chloride and 3-5 dinitrobenzoyl chloride. Examples are given. The nitrobenzoyl esters, especially after reduction, and the acetic ester may be condensed with #-alanine to yield pantothenic acid derivatives. The Specification as open to inspection under Sect. 91 describes in detail a process for the extraction of pantothenic acid by obtaining an eluate from a charcoal adsorbate of a source such as liver extract, fractionating the eluate with various organic solvents, and preparing an alkaline earth salt such as barium pantothenate from the concentrate ; the barium salt on hydrolysis yields the l-lactone which may be used to prepare pantothenic acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-833224-A (GB)
Title: Improvements in or relating to electric plug-and-socket adaptors
IPC: H01R31/02
Filed: 1956-01-23
Abstract: 833,224. Two-part couplings. VOLEX ELECTRICAL PRODUCTS Ltd., and HUGHES, J. G. K. Feb. 18, 1957 [Jan. 23, 1956], No. 2124/56. Class 38 (1). A three-way adaptor comprises abase 10 carrying a T-shaped connector strip in a recess 11, lugs 14 in each limb forming the earthing sockets and a superimposed housing 34 carrying two three-armed connector strips 40 on opposite faces, live and neutral sockets 37 being carried on the arms of strips 40 and located one in each of six apertures in housing 34. The strip 40 carrying the neutral sockets is clamped between housing 34 and base 10, a screw 46 passing through clearance holes in housing 34 and strip 40 to engage a tapped hole 47 in a link 20 secured to the neutral pin by a screw 19, while a screw 48 similarly engages hole 49 in a link 21 connected to the live pin 17 through bolt 24, fuse 23 and screw 22. The fuse is held in a carrier pivoted in an opening 28 in base 10 and has a finger-piece 29. Each socket (Fig. 7) is formed by the central part of a U-shaped strip 38 and by one limb of blade 39, lugs 42 on strip 38 engaging in notches 41 in blade 39, the lugs being inserted in slots 43 in strip 40 and then bent over. Each of the three outlets is provided with an earth pin actuated slidable shutter 54, each shutter being T-shaped. A lug 58 on a spring-pressed actuator slider 57 of the shutter abuts a projection 60 on a cover 51.
Patent GB-1373714-A (GB)
Title: Removable shelved structure
IPC: A47F5/08
Filed: 1972-01-17
Abstract: 1373714 Shelving BAG and CIE and "SIEGEL" ANCIENS ETABS SIEGEL and STOCKMAN REUNIS 17 Jan 1972 [12 Feb 1971] 2152/72 Heading A4B A display unit comprises hollow uprights 1 extending from floor to ceiling and adapted to support shelves 2 or like display members, each upright 1 being provided at its upper end with a head 12 providing a pair of opposed, outwardly projecting lugs which are rounded off at two mutually opposite corners 12 b, the lugs being engaged in a channel section ceiling rail 3 with inturned lips and each upright 1 being supported at its lower end on an adjustable foot 15. The head 12 forms part of a block 11 non-rotatably fitted in the upper end of an upright 1. The uprights may carry adjustably positioned lamps 22, 23. A channel section bar 20 is secured to an upright 1 and carries a socket 25 which facilitates inter-connection of electric cables 7, 24 in the rail 3 and bar 20.
Patent GB-1092693-A (GB)
Title: Improvements in or relating to spanners
IPC: B25B13/46
Filed: 1965-01-19
Abstract: 1,092,693. Wrenches. WILLIAM HUME & CO. Ltd., and A. M. BINNIE. May 24, 1965 [Jan. 19, 1965], No. 2237/65. Heading B4W A spanner comprises a head 1 having an opening 3 for a nut, and a handle 2 pivotally connected at 8 to the head 1, the handle having at its connected end a nose 9 having a flat outer end and a stop 10 angularly spaced apart, the nose projecting through a gap in head and partly across the opening 3 when the handle is pivoted in one direction. The lug 10 forms a stop which prevents pivotal movement when the handle is pivoted in the other direction, the arrangement being such that a nut encircled by the head can be tightened by oscillating the handle. The peripheral wall of the opening 3 forms a complete circle. In a modification, Fig. 5 (not shown), the opening in the head extends through less than a complete circle so as to provide a slot through which the head may be applied sideways to a nut. The spanner may be made of phosphor bronze.
Patent GB-378324-A (GB)
Title: Improvements in or relating to fluoration
IPC: C07C17/20
Filed: 1932-01-25
Abstract: Halogen derivatives of aliphatic hydrocarbons having relatively high melting-points have their melting points reduced before treatment with a fluorating agent.  For example, hexachloroethane, hexabromoethane, or tetrabromodichloroethane is mixed with antimony pentachloride, and then treated with a fluorating agent such as hydrogen fluoride or antimony trifluoride.  The antimony pentachloride may be prepared in situ from the trichloride and chlorine.  By varying the temperature of the dephlegmator during the fluoration, the degree of fluoration is also varied.  Specification 359,997 is referred to.
Patent GB-247721-A (GB)
Title: An improved guard for soldering irons
IPC: B23K3/08
Filed: 1925-01-27
Abstract: 247,721. Owen, R. M. Jan. 27, 1925. Soldering-irons.-A guard for an electricallyheated or other soldering-iron to prevent the heated end coming into contact with a support on which it may be placed or with the operator, when not in use, consists of a wire, trellis or perforated metal cage adjustably mounted on the iron and projecting beyond the heated end thereof. The guard, Fig. 1, consists of an inner coil 2 in which the bit is placed, mounted by an outer coil 3, the guard being slid up the iron to free the bit for use. In another form, Figs. 2 and 3, having a resilient grip for bits of different sizes, the inner end of the coil may be formed by first making an inner turn 2, then bending outwardly at the point 5 to form one turn 3 of the outer coil and then bending inwardly at 4 to form the next turn of the inner coil and so on until a sufficient number of turns for the inner gripping coil are obtained. In Fig. 4, a coil 6 may be secured by rods 7 to a fibre or like disc 8 carrying a split sleeve 9 so that the coil may be slidable on the stem 10. In Fig. 5 two wire rings 11, 12 of which the ring 12 is split, are formed integral with or connected by members 15 into which the iron is placed. The ring 12 may be further supported by members 14. The upper end of the handle may be provided with a catch to hold the guard in position instead of using a resilient grip.
Patent GB-680362-A (GB)
Title: Improvements relating to the operation of electric discharge lamps
IPC: H05B41/232
Filed: 1950-01-30
Abstract: 680,362. Supply systems for space discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., CLARKE, M. G., and PRIVETT, H. L. Jan. 12, 1951 [Jan. 30, 1950], No. 2387/50. Class 38 (iv). The voltage drop in a series stabilizing inductance 3 caused by the current taken by the primary winding 3 of a transformer during the period when its secondary windings 4, 5 supply heating current to the electrodes 6 of a lowpressure discharge lamp 7 is neutralized by connecting a condenser 9 in parallel with the primary winding 2. The transformer, which also supplies discharge current, may be autowound as shown, or double-wound, and the lamp has an earthed starting electrode 8. A power factor correction condenser may be connected across the supply terminals 1. Specification 643,642, [Group XL (a)], is referred to.
Patent GB-805198-A (GB)
Title: Improvements in or relating to method and apparatus for making corrugated core structural sheet material
Inventor: PAPPELENDAM CARL A VAN
IPC: B23K11/00
Filed: 1956-01-26
Abstract: 805,198. Making composite sheet materials; corrugating; welding by pressure. NORTH AMERICAN AVIATION, Inc. Jan. 26, 1956, No. 2597/56. Classes 83 (2) and 83 (4). [Also in Groups X and VIII] In making corrugated core sandwich-type sheet material as in Fig. 7, sheet material is fed from a roll, transversely corrugated, creased along uniformly spaced longitudinal paths and folded into a corrugated section by bending along the paths, flat sheet material is fed from two rolls into contact with each side of the corrugated sheet and the apexes of the corrugated sheet and the flat sheets are bonded to form a sandwich. Stainless steel sheet 1 is fed by rollers 70, Fig. 1, from a roller 2 through transverse corrugating rolls 3, 4 and then through rolls 5, 6 which crease the corrugations longitudinally of the sheet. The creased sheet is then fed to a corrugator 7 comprising upper and lower blocks 8, 9 having guide members 10 which fold the sheet into V-section corrugations. Rollers 11, 12 flatten the peaks and valleys before the sheet is fed between bracket held electrodes 20, 21 which engage the valleys in the sheet as in Fig. 13. Two flat stainless steel sheets 13, 14 are fed from rolls 15, 16 on each side of the corrugated sheet and adjustable rollers 18, 19 built up of alternate conducting and insulating discs effect seam or closelyspaced spot-welding of the sheets. The use of aluminium, magnesium or plastic sheets is referred to. In an alternative arrangement the electrodes fitting the valleys of the sheet are pivoted at 39, Fig. 6, in brackets 31, and are pressed into contact with the corrugated sheet by hydraulic pistons 32 connected to the electrodes by insulating material 34. Cooling water from conduit 40 is sprayed on to the electrodes through ducts 58. The initial transverse corrugations and longitudinal creases may alternatively be made simultaneously by toothed rollers 62, 63, Fig. 8 (not shown), arranged between rollers 22-27.
Patent GB-1212220-A (GB)
Title: Communications security system
IPC: G06F9/40
Filed: 1968-01-17
Abstract: 1,212,220. Data security. COMPUTER USAGE CO. Inc. 17 Jan., 1968 [17 Jan., 1967], No. 2604/68. Heading G4A. [Also in Division H4] Transmission of information along a communication line can be prevented by operation of a mechanically-operated lock mechanism, such operation developing an identification signal which is compared with a lock signal accompanying the information to be transmitted. In a computer system, three lock bits A, B, C (comprising the lock signal and forming part of each stored word) are applied on read-out of the associated word from memory to inputs 38, 40, 42 of a security trap (Fig. 5). Seven keyoperated locks 26 are provided for seven possible users of the computer which in this case is assumed to have only a single output terminal. Seven AND-gates 44-50 are provided with inputs so connected to the locks and the inputs 38, 40 and 42 that no AND-gate conducts so long as the lock corresponding to the identification lock bits has been operated. If such condition does not hold, a signal is passed to output device 70 to prevent transmission and/or to sound or indicate an alarm. A universal lock signal which can never give rise to alarm conditions is reserved for words which are available to all users alike. Traps may be included also between other computer components to prevent stored data being modified. In computer systems including a plurality of output terminals, each being provided with a respective lock, transmission of signals from the locks 26 to the gate 44-50 of the trap is effected on a time sharing basis (Fig. 6, not shown). Use of the invention in a multiprocessor multi-output terminal system is illustrated in Fig. 9 (not shown). In case of serial mode transmission, a serial to parallel converter (Fig. 7, not shown) may be associated with the trap. The lock signals may be associated with blocks of data instead of individual words and traps may be provided also in the input to the memory. The invention may be applied to radio or telephone communication lines.
Patent GB-819384-A (GB)
Title: A process for the production of polycondensation products containing sulphur
IPC: C08G79/02
Filed: 1957-01-24
Abstract: Sulphur containing polymers suitable for use as lubricants and plasticizers are obtained by condensing hydroxyalkylated glycols containing thio-ether groups with each other or with non-hydroxylated glycols containing sulphur-ether groups. Alternatively hydroxylated glycols are condensed with glycols containing sulphur-ether groups. Preferred glycols containing thioether groups are those containing ethylene, propylene and isopropylene groups bonded between a thioether group and are an OH group, e.g. bis-beta-hydroxyethyl sulphide, b ,b 1-dihydroxydipropyl sulphide and a ,a 1-dihydroxydipropyl sulphide and compounds such as <FORM:0819384/IV (a)/1> Suitable hydroxyalkylation products of glycols containing thioether groups are reaction products of thioether glycols and alkylene oxides.  These products can be obtained without the use of pressure by reacting at temperatures above 8 DEG  C. in presence of a tertiary amine or quaternary ammonium base as catalyst. Examples of glycols which have been hydroxylated are: <FORM:0819384/IV (a)/2> <FORM:0819384/IV (a)/3> <FORM:0819384/IV (a)/4> <FORM:0819384/IV (a)/5> <FORM:0819384/IV (a)/6> Glycols containing aromatic groups may also be used, e.g. Example (8) thio diglycol and 1,4-butylene-bis-hydroxyethyl glycol are reacted with a polyester obtained by condensing adipic acid and glycol <FORM:0819384/IV (a)/7> and similar compounds in which the aromatic rings are joined by -CH2-, -C(CH3)-, -O-, -S-, and -SO2- linkages.  The poly condensation is carried out by heating equimolecular proportions of the reactants in presence of catalysts, e.g. aromatic sulphonic acids and their esters, sulphuric acid and amido sulphonic acids.  Alcohols or polyesters containing three or more hydroxyl groups may be added during the condensation.  In examples: (1) bis-b -hydroxy ethyl sulphide is condensed with ethylene oxide in presence of hexahydrodimethyl aniline.  The product obtained is condensed in presence of p-toluene-sulphonic acid with bis-b -hydroxyethyl sulphide.  (2) A compound of formula HO(CH2)2-O-(CH2)2OH (obtained by reacting ethyl oxide with bis-b -hydroxy-ethyl-sulphide) is converted into a polythio ether by heating it to 150-170 DEG  C. in presence of p-toluene-sulphonic acid.  (3) Bis-b -hydroxyethyl-sulphide is condensed with trimethylol propane to give a branched polyether.  (4) Thio diglycol and 1,4-butylene-bis hydroxy ethyl glycol are condensed.  Thio diglycol is condensed with (5) pentaglycol monohydroxyether (6) 4,41-bis-hydroxyethyl diphenyl dimethyl methane (7) 4,4-bis-(oxyethoxy) 1,4-butylene-bis-hydroxyethyl glycol and trimethylol propane.  Specification 818,359 is referred to.
Patent GB-274737-A (GB)
Title: Improved box to hold face powder and the like
IPC: A45D33/00
Filed: 1927-01-29
Abstract: 274,737. Wertheimer, P. L., and Wertheimer, P. J.,- (trading as Wertheimer FrÞres). Sept. 25, 1926, [Convention date] Fittings, internal; lids.-A box for face pcwders &c. has a removable disc 4 adapted to receive and hold a receptacle 6 containing face powder &c., the disc having spring lips 10 around its periphery fo: engaging the sides of the box and, in conjunction with a spring 14 on the disc forming the catch for the lid 2, holding the disc in place. As shown, the lips 10 engage beneath a shoulder 9 on the box and the spring catch 14 is formed as a blade spring with a projection 15 adapted to engage a catch 16 on the lid; the catch is actuated by a stud 17 projecting through an opening in the box. The receptacle 6 may be held in the disc by lips 5 and the lips 10 have stamped grooves 12 by means of which and a pin &c. the disc may be released from the shoulder 9.
Patent GB-142548-A (GB)
Title: Improvements in or relating to tools for slotting commutators
IPC: H01R43/14
Filed: 1919-02-04
Abstract: 142,548. Gardner, J., and Knight, C. Y. Feb. 4, 1919. Saws; spoke shave-like tools.-A tool for slotting or cutting down the insulating-material between the segments of worn commutators comprises a cutter and a guide spaced apart, preferably adjustably, on a handle member which also carries an adjustable guide for retaining the cutter radial. A stock 10, preferably curved, has handle members 11, 12 and carries (1) an adjustable clamp 13 supporting a guide 14 for engaging a slot or groove previously made between a pair of segments, (2) a clamp 20 supporting a cutter 21, for example a saw, and held to the stock by two bolts 22 fitted with spiral spring washers, but adjustable radially by a screw 23 for regulating the cut, and (3) an adjustable guide 32 of U-shape to rest on the commutator and support the cutter in radial positicn during the movement of the stock in cutting.
Patent GB-1358992-A (GB)
Title: Automatic fire extinguishing systems
IPC: A62C35/60
Filed: 1972-01-19
Abstract: 1358992 Fire alarms BRITISH GAS CORP 19 Jan 1972 [20 Jan 1971] 2798/71 Heading G4N An automatic fire extinguishing system comprises a series of containers of a fire suppressant, each arranged to operate automatically in response to a fire, each container being suspended by a respective spring balance having a switch 7, arranged to change state upon loss of contents of the extinguisher, the switches 7 being connected in series with a relay 6 across a primary supply 1 and arranged so that when one of the switches 7 changes state, the relay operates so as to energize a warning device 9, 10 from a battery 3, normally floating across the supply 1. As described, each extinguisher is suspended from shackles 14, 15 (Fig. 2) attached to telescopic tubes 12, 13, normally biased together by means of a spring (not shown) but extended because of the weight of the charged fire extinguisher. Upon loss of charge, the spring draws the tubes 12, 13 together so as to open a microswitch or magnetically-operated reed contact unit 7.
Patent GB-588362-A (GB)
Title: Improvements in or relating to blasting explosives
IPC: C06B31/46
Filed: 1944-02-16
Abstract: 588,362. Explosives. DU PONT DE NEMOURS & CO., E. I., and WINNING, C. H. Feb. 16, 1944, No. 2855. [Class 9 (ii)] Relates to low-density blasting-explosives of the type comprising a liquid explosive ingredient (e.g. nitroglycerine) as a sensitizing agent, a water-soluble inorganic oxidizing salt (e.g. ammonium nitrate), and a carbonaceous combustible ingredient of low density, and consists of the use of small wood shavings (e.g. spruce) as the carbonaceous material. An example contains nitroglycerine 14.0 per cent, ammonium nitrate 65.5 per cent, sodium nitrate 3.0 per cent, spruce shavings 9.0 per cent, other combustibles 8.2 per cent, chalk 0.3 per cent. Specification 130,166, [Class 9 (ii)], is referred to.
Patent GB-664176-A (GB)
Title: Improvements in or relating to hydraulic moulding presses of the horizontal transfer type
Inventor: GROVES WALTER ROBERT
IPC: B29C45/70
Filed: 1949-02-02
Abstract: 664,176. Transfer moulding presses. BRITISH INDUSTRIAL PLASTICS, Ltd. Jan. 31, 1950 [Feb. 2, 1949], No. 2921/49. Class 87(ii) An arm 43, Fig. 2, sweeps between the moulds 5, 6 to remove the moulded articles which have been ejected by pins 14. If the arm is stopped by an obstruction which it cannot move, e.g. an article which has not been properly ejected, then arms 67, connected to the arm 43, prevent valve spindles 68, 69 from moving and the press from operating. Compressed air is supplied to holes 55 in the arm to help to remove the moulded articles. The continued blast of air from the arm warns the operator that the arm has been stopped. In operation, a time cycle controller 37 supplies compressed air to a valve 28, to cause hydraulic pressure from a source P to be supplied to cylinder 2 to close the moulds 5 against fixed moulds 6. Air is then supplied to valve 33 to supply hydraulic pressure to cylinder 10, to cause the piston 11 to inject material into the moulds. After moulding, the controller causes the moulds 5 to move back, with consequent ejection of the articles by the pins 14, and then the piston 11 to move back. Compressed air is supplied to cylinder 21, to cause a tray 19 to transfer a pellet 17 of moulding material to the injection chamber. When the moulds are open, the controller supplies air to a cylinder 51, to move the arm between the moulds. The controller then switches itself off. When the arm has passed between the moulds, it operates a switch 72 which restarts the controller. The arm is returned by a spring 52. The moulds are prevented from closing until the arm 43 is again clear of the moulds, by the arms 67 engaging the valve spindle 68, 69. According to the Provisional Specification the mould closing apparatus may include intensifying pistons, and the feed tray may have dimples for disturbing the pellets in the hopper.