baber/WOPTO huggingface dataset:
Patent GB-508911-A (GB)
Title: Improvements in the processes for the preparation of aluminium oxides
IPC: C01F7/34
Filed: 1938-06-24
Abstract: 508,911. Alumina; alkali metal and ammonium sulphates. TONIOLO, C., and AZOGENO SOC. ANON. June 24, 1938, No. 18755. [Classes 1 (ii) and 1 (iii)] A process for the production of aluminium hydroxide in a form in which it can be readily separated from substances with which it is mixed, consists in reacting one or more comminuted simple or double aluminium salts with one or more comminuted alkali carbonates, bicarbonates or carbamates producing a mixture of meal-like aluminium hydroxide and an alkali salt or salts other than carbonates, bicarbonates or carbamates. The aluminium salts may be obtained by treating aluminium earths such as bauxites having a high silica and iron content and clays or mixed base minerals such as leucite, orthoclase, felspar or alunites by any acid process, but preferably by sulphuric acid. The resultant filtered solution is neutralized with alkali hydrate or carbonate such as potassium carbonate, ammonia or ammonium carbonate and then treated with the amount of ammonium sulphate required to yield ammonia alum, and the alum crystallised out. The last two steps may be combined. The powdered alum or mixture of salts, depending upon the neutralizing agent is then mixed with the alkali carbonate, bicarbonate or carbamate, e.g. ammonium or potassium carbonate. The resultant mass is lixiviated with hot water, preferably at boiling point and in an autoclave, the filtered solution yielding crystallized alkali sulphate when cooled. The mother liquor may be re-used until sufficient other valuable salts have accumulated when these are recovered. The aluminium hydroxide may be converted to alumina.
Patent GB-202623-A (GB)
Title: Improvements in or relating to revolution counters for rotating bodies
IPC: G06M1/08
Filed: 1923-07-20
Abstract: 202,623. Svensson, K. J., and Norling, K. A. P. Aug. 16, 1922, [Convention date]. Differential speed indicators. - The rotating member 1 of which the speed is to be measured carries a spur wheel 3 adapted to engage a pinion 4 that is loosely carried on a shaft 11 and is normally pressed by a spring 8 out of mesh with the spur wheel 3. The pinion is provided with an inclined ramp 5 adapted to engage with a similar ramp 7 on a touch-peg mounted to slide in the casing of the device and held against rotation by a screw P. In operation the touch-peg is pressed in until the pinion 4 is forced into mesh with the spur wheel 3 and the number of impulses in a determined time due to the one ramp pressing on the other is noted. In a modification a worm and a worm-wheel replace the spur wheel and the pinion.
Patent GB-694227-A (GB)
Title: Process for the manufacture of insulin preparations by extraction of insulin-containing organs
IPC: C07K14/625
Filed: 1951-08-09
Abstract: Insulin extracts are obtained from insulin-containing organs by extraction with aqueous alcohol in acid medium, and is characterized in that the organs are subjected to a repeated extraction in approximately 45-55 vol. per cent alcoholic medium in the presence of one or more salts with monovalent anion in a quantity below 3 per cent by weight, with the exception of salts of the heavy metals.  3 per cent of ammonium chloride may be added to the extraction mixture and the extraction and separation effected between 5 DEG  and 15 DEG C.  Subsequently the pH is adjusted to between 4 and 5.5 and the precipitate removed, and the pH readjusted to 7 to 8.5 and the precipitate formed removed.  The liquid is acidified, the alcohol distilled and the residue purified by salting out and precipitation at the iso-electric point.  The mother liquor is brought to a pH of 6 to 8 when natural insulin precipitates.  Specification 566,351, [Group VI], is referred to.ALSO:Insulin is isolated from animal organs, e.g. pancreas by extracting the organs with 45 to 55 per cent aqueous alcohol at an acid pH in the presence of one or more salts having a monovalent anion in a quantity below 3 per cent by weight, such salts not being the salts of heavy metals.  Specified salts are sodium chloride, potassium chloride, potassium bromide, ammonium chloride, calcium chloride, tetramethyl ammonium chloride and sodium p-toluene sulphonic acid.  It is preferred that the volume of extraction liquid be at least twice that of the organs. Extraction is at 5 to 15 DEG  C.  Purification involves adjusting the pH of the extract to 4 to 5.5, removing the precipitate, adjusting the pH to 7 to 8.5 and again removing the precipitated matter. The liquid is acidified, the alcohol removed in vacuo and the residue purified by salting out and precipitation at the isoelectric point. Specification 566,351 is referred to.
Patent GB-691383-A (GB)
Title: Improvements relating to hydraulic stabilizing systems
IPC: F15B13/04
Filed: 1950-07-27
Abstract: 691,383. Fluid-pressure servomotor-control systems. ELECTROL, Inc. July 27, 1950 [Aug. 3, 1949], No. 18819/50. Class 135 In a hydraulic stabilizing system wherein gyroscopic mechanism responsive to tilting movement with relation to a reference line or plane actuates a multiple-port selector valve to cause a motor to be driven in a related direction, mechanism is associated 'with the valve to cause the latter to supply pressure pulsations in the liquid alternately to opposite sides of the motor. The invention is shown applied to the stabilizing of a gun 10 which can swing around the point F and which carries a bracket 11 containing the control apparatus. When the gun tilts, an arm 52 carried by the gimbal ring 50 of a gyroscope on the bracket 11 will remain vertical and thus cause a piston valve plunger 41 in contact therewith to slide in its seating and put the two sides of a servo-piston 14 into communication with a liquid pressure supply from a pump 34 and with an exhaust line leading to a sump 35. As the cylinder enclosing piston 14 is fixed to gun chassis, or to a ship, &c. the piston will be moved to bring the gun back to its former elevation; and the resultant movement of bracket 11 will cause valve 41 to be re-centred. The seat for valve 41 consists of a ported sleeve 21 which is continuously reciprocated by an electric motor 16 so as to cause the pressure liquid to be applied to the piston in a series of alternating pulsations.
Patent GB-141316-A (GB)
Title: An improved protective fitting for watches and the like
IPC: G04B37/00
Filed: 1919-07-29
Abstract: 141,316. Paoli, M. de. April 8, 1919, [Convention date]. Addition to 139.449. Void [Published under Sect, 91 of the Act]. Cases, watch.-For protection of the ordinary metal case from injury by a fall or blow and for exclusion of dust, a tightfitting rubber ring 1 of channel section is provided which grips the band 1<1> and overlaps the joints of the bezel and back therewith. This ring is formed with a thickened lip 1<x> running round the edge of the glass 2<111>. Slotted ears 1<y> are added for passage of the wristlet.
Patent GB-461533-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/00
Filed: 1936-07-07
Abstract: 461,533. Vacuum cleaners. ELECTROLUX, Ltd. July 7, 1936, No. 18845. Convention date, July 9, 1935. [Class 8 (i)] A vacuum cleaner is pro vided with alternative means of support, e.g. rollers for hard surfaces and runners for use on carpets. The runners 15, Fig. 2, may be pivoted in brackets 14 attached to the body, the runners being curved to lie against the body when not in use. Alternatively, the runners 15, Fig. 5, and the carriers for the rollers 16 may be rigidly connected and pivot simultaneously in the brackets 14. The supports are held in their end position by means of pins 19, which spring into recesses. In alternative arrangements rollers 21, Fig. 7, are carried by clamps 23, which engage a runner 15. The rollers project below the runner, so that on hard surfaces the rollers only make contact. The rollers may be arranged in a slot in a runner, as shown, or a clamp may carry a roller at each side of a runner, or a clamp may engage both runners and carry outside rollers only.
Patent GB-1080300-A (GB)
Title: Semi-permanent memory
IPC: G11C11/06
Filed: 1966-04-29
Abstract: 1,080,300. Circuits employing bi-stable magnetic elements. INTERNATIONAL STANDARD ELECTRIC CORPORATION. April 29, 1966 [May 6, 1965], No. 18862/66. Heading H3B. In a memory matrix of the two-core-per-bit type, the cores A1, B1 of each memory unit are both linked by the same column and row conductors Fc, Fr1, and are coupled together by a low resistance winding Cc1 To store a " 1 " both cores are driven to the same remanent state P so that when a read pulse is supplied to Fc and Fr1 equal and opposite pulses are induced in Cc1 and switching takes place, inducing an output in Fs. To write a " 0," after both cores have been driven to the P state a pulse of opposite polarity is applied to Fr1 simultaneously with a pulse on conductor Fo, which links core B1 only. The write pulses are of sufficient duration to cause core B1 to switch to its other remanent state N, as in core B2. An inhibit conductor Fi is provided to prevent switching of core B to the N state if the " 1 " is to be retained in a particular memory unit of the matrix. Application of a read pulse to a " 0 " storing memory unit causes a current to be induced in Cc1 which opposes switching of core A. The read pulse is of shorter duration than the write pulse so that switching does not take place and no output is produced. The read pulse is followed by a pulse of equal amplitude and duration, but opposite polarity, to rewrite a " 1 " in the switched cores. Winding Cc1 again prevents switching of " 0 " storing memory units during rewriting. The sense conductor Fs may link both cores of each memory unit. A three-dimensional memory matrix is referred to.
Patent GB-1369933-A (GB)
Title: Preparation of polymers
IPC: B01F27/73
Filed: 1972-04-24
Abstract: 1369933 Polymerization apparatus; mixing apparatus MITSUBISHI JUKOGYO KK 24 April 1972 [24 April 1971] 18876/72 Headings B1C and B1X [Also in Division C3] A vessel for use in a polymerisation reaction, shown in Fig. 1 and, in vertical section, in Fig. 2, comprises a horizontally held casing 1 whose contents are agitated by a plurality of shafts, 7, each carrying a plurality of discs, 10, which rotate in opposite directions at the same rate. The stirring action may be assisted by bars, 11, joining the discs on each shaft, which also serve to scrape polymer from the surface of the casing. In this case cut-outs, 13, are provided to prevent the bars on one shaft from fouling the discs on the other. An alternative type of disc, with raised fins instead of the bars, is shown in Fig. 3. The contents of the vessel are cooled by spraying a volatile substance onto the surface of the liquid at a number of points, 309, 310, along the length of the vessel and removing evaporated material at 15. A coolant may also be circulated within the shafts, 7, and is a jacket 4. The apparatus may also be used for removing volatiles from a polymer solution under reduced pressure, the particular means of agitation preventing foaming without degrading the polymer, or (without the spray inlets) as an evaporative cooler in an external cooling loop for a conventional polymerisation reactor.
Patent GB-478196-A (GB)
Title: Improvements in or applicable to spring seats
IPC: B60N2/70
Filed: 1936-07-08
Abstract: 478,196. Spring upholstery. MARSHALL, J. E. L. July 8, 1936, Nos. 18888 and 21355. [Class 52 (iv)] A tension-spring meshwork supporting upholstery springs A is connected to the latter by means of intersecting wires E interlaced with the bottom coils of the upholstery springs.
Patent GB-882274-A (GB)
Title: A safety locking device for doors of motor vehicles
IPC: E05B65/36
Filed: 1960-05-27
Abstract: 882,274. Remotely controlling door catches. GORGET, J. L. May 27, 1960 [July 21, 1959], No. 18910/60. Class 44. In a safety device to prevent unwarranted opening of a vehicle door, the interior handle may be rendered ineffective to operate the catch by means of a remotely controlled disengageable coupling. As shown in Fig. 2 the handle d operates the catch e by means of rods c 1 , C 2  between which is interposed the coupling consisting of a lost-motion device and comprising members a 1 , a 2  fixed to rods c 1 , c 2  respectively. The casing i of a Bowden wire j is fixed in member a 1 , and the wire passes through member a 2  and terminates in a stop l. The wire is attached to the remote control lever n by means of which the stops may be placed in the full line position, in which actuation of the handle d will cause the stop to engage the member a 2  and withdraw the catch e; or in the dotted line position in which the wire j will pass face l, through the member a 2  when the handle is actuated, without withdrawing the catch. In another embodiment, Fig. 4, the lost motion device comprises members r, s locked together by engagement in an annular groove r 1  of a cylindrical detent u which may be withdrawn by the Bowden wire to provide lost motion between the rods c 1  c 2 . The Bowden wire may be replaced by a hydraulic transmission.
Patent GB-517615-A (GB)
Title: Improvements in and relating to collapsible or portable buildings, fences, walls andother architectural structures
IPC: E04B1/343
Filed: 1938-06-27
Abstract: 517,615. Poultry houses. PICKLES, F. A. June 27, 1938, No. 18958. [Class 5 (ii)] [Also in Group X] Slabs 13, 13a and horizontal members 10, 16, 20 are interlocked by tongue-and-groove connexions 11, 14 15, 17 to form portable buildings, including poultry houses (Fig. 6). Joints between adjacent horizontal elements are locked by slabs 13a overlapping the half-tongues 11a on the ends of such elements. The end walls 18 of the underside groove 17 in the inter. mediate horizontal elements 16, 20 are received in notches 19 in the slabs 13a. Transverse tiebars 21 may be interposed between the ends of contiguous elements 20 and are notched at 22 to engage the upper edges of the slabs. In the poultry house, the lower horizontal elements 10 are also grooved underneath to seat upon joists 26 supported above ground level by posts 27. Nesting boxes 32 are formed by slabs 33, 34, 35 supported by notched cross-bars 36 inserted between the ends of elements 16. The upper edges of the horizontal elements are bevelled to throw off rain.
Patent GB-620847-A (GB)
Title: Improvements in or relating to circuit for amplifying electrical oscillations
IPC: H03G1/00
Filed: 1946-06-26
Abstract: 620,847. Thermionic valves. PHILIPS LAMPS, Ltd. June 26, 1946, No. 19085. Convention date, June 27, 1945. Addition to 620,767. [Class 39 (i)] [Also in Group XL (c)] In a thermionic valve amplifier comprising at least two discharge paths in parallel, one path having a high mutual conductance and only being effective for small amplitude inputs, and the other having a low mutual conductance and only operating for high amplitude inputs, as claimed in the parent Specification an auxiliary electrode in the low mutual conductance path is connected to an electrode extending for a small distance into the other discharge path, and supplied with positive voltage through a high resistance. In this way the path including the auxiliary electrode is cut off for small amplitude inputs, a negative voltage proportional to the input being applied to the control grid. As shown, the screen grid of a pentode valve 1 is formed in two insulated parts 3, 3<1>, one co-operating with a portion of the control grid 2 wound with variable pitch in a discharge path A having low mutual conductance, and the other part 3 co-operating with a constant pitch portion of the control grid 2 in a discharge path B having high mutual conductance. The screen 3<1>, in discharge path A, is connected to an electrode 14 which projects for a small distance into the discharge path B, and through a high resistance 10 to the H.T. supply. For small amplitude inputs (low control voltage) the electrode 14 in path B draws current, and the voltage drop across resistance 10 cuts off the path A. The extension 14 may be in the form of a rod located in the path B between the suppressor grid and the anode, or the screens 3, 3<1> may be wound coaxially, and the screen 3<1> extended for a small distance into the path B. The electrode 14 may be connected to the screen 31 in the path A through an impedance.
Patent GB-1105465-A (GB)
Title: Novel imides and polyimides
Inventor: ALLI SAM
IPC: C08G73/10
Filed: 1966-03-08
Abstract: Polyimides of type <FORM:1105465/C3/1> or <FORM:1105465/C3/2> where R is C1- 10 alkyl in the 6- or 7-position of the naphthalene moiety, R2 is C1- 10 alkylene, arylene, oxybisarylene or alkylenebisarylene, and n is 2 to 400, are prepared by reacting a dianhydride of formula <FORM:1105465/C3/3> or <FORM:1105465/C3/4> with a polyamine H2NR2NH2 to form the corresponding polyamide and heating this to dehydrate it.ALSO:Novel imides of formula <FORM:1105465/C2/1> where R is C1- 10 alkyl in the 6- or 7-position of the naphthalene moiety and R1 is H, C1- 10 alkyl, hydroxy -C1- 10 alkyl, aryl, alkenyl or -R2-NH2, where R2 is C1- 10 alkylene, arylene oxybisarylene or alkylenebisarylene are prepared by reacting the corresponding acid anhydrides with an amine R1NH2.  Polymers may also be obtained when using diamines (see also Division C3).
Patent GB-978983-A (GB)
Title: Method of modifying dye receptivity of nylon and ombre, colored fabric produced therefrom
IPC: D06P5/20
Filed: 1963-05-14
Abstract: 978,983. Heat treatment and dyeing of nylon. MONSANTO CO. May 14, 1963 [June 5, 1962], No. 19123/63. Headings D1B, D1F, D1L, D1S and D1W. The dye receptivity of nylon textile material is modified by exposing portions of the material to heated air while shielding other portions thereof from the heated air. As described the central portions of skeins of drawn nylon yarn are clamped, and the skeins are passed on an endless conveyer 5 through an enclosure 10 where the unclamped portions are heated by air for 2-30 minutes in a temperature of 130-210‹C.
Patent GB-1536772-A (GB)
Title: Selectively solder-plated printed circuit boards
IPC: H05K3/34
Filed: 1977-04-06
Abstract: 1536772 Printed circuit boards NEVIN ELECTRIC Ltd 6 April 1977 [10 May 1976] 19136/76 Heading H1R In a method for selectively solder plating printed circuit boards, the circuit board conductors are interconnected by applying an electrically conducting material to form a conducting surface; the conducting surface is masked by applying a coating of insulating material; solder is electroplated on to the unmasked areas, using the conducting surface as an electrode; the insulating mask and interconnecting conducting material are then removed. The electrically conducting material may be applied to walls of holes connecting conductors on each face of a printed circuit board, so that a solder plated through-connection can be formed.
Patent GB-431609-A (GB)
Title: A process for the manufacture of valuable products, such as lubricating oils resistant to oxidation, transformer oils, and the like
IPC: C10G71/00
Filed: 1934-06-28
Abstract: Lubricating and transformer oils are obtained by polymerizing unsaturated hydrocarbons obtained by: (1) liquid-phase cracking of such materials as paraffin wax, ozokerite, ceresine, wax-tailings, paraffinous shale, and paraffinous distillates and residues from brown coal tar, to obtain mainly a product of B.P. 150--450 DEG  C.; (2) refining this fraction, e.g. by chemical agents, adsorbents, or selective solvents such as liquid sulphur dioxide, nitrobenzol, furfurol, or mixtures; (3) cracking the refined product in the vapour phase, followed or not by refining, preferably by aluminium chloride at elevated temperature, to remove diolefines.  For example, 1000 kg. of topped paraffinous Roumanian crude oil is cracked in the liquid phase at 450 DEG  C. and 44 atmospheres with reflux above 400 DEG C., and the 810 kg. fraction of B.P. 200--400 DEG  C. is treated with liquid sulphur dioxide; the 690 kg. of raffinate is cracked in the vapour phase at 580 DEG  C. and atmos. pressure, yielding 420 gm. of suitable unsaturated oil which is polymerized with the aid of aluminium chloride; in addition to 300 kg. of first class lubricating oil there is obtained a Diesel oil and a spindle oil.
Patent GB-403582-A (GB)
Title: Improvements in or relating to pneumatic mixing plants for cotton and similar fibrous materials
IPC: D01G9/16
Filed: 1933-07-06
Abstract: 403,582. Conveying and distributing apparatus for pneumatic mixing - plants for cotton &c. AKT.-GES. J. J. RIETER ET CIE, Klosterstrasse, Winterthur, Switzerland. July 6, 1933, No. 19199. Convention date, July 8, 1932. [Classes 120 (i) and 120 (iii).] In a pneumatic mixing-plant for cotton and like fibrous materials conveyed along a conduit 1, Fig. 1, a longitudinal row of mixing chambers is served by one discharge device 10 which is adapted to be moved along the conduit 1 and is capable of separating the fibrous material from the air. The discharge wheel 10 is supported by rods 9 from members 8 having rollers 7 movable along a track rail 6, and is formed with entrance and discharge openings 11, 12 which register with corresponding openings 2, 3 in the conduit 1. It is fixed in position by wedges inserted into pins 15 which engage angle irons 5, Fig. 2, an abutment 14 then bearing against the opposite wall of the conduit 1. A flap 16 is turned into the raised position, Fig. 1, to deflect the current of air and cotton downwardly, the cotton being discharged by rotation of the wheel 10 and the air passing out through the openings 12, 3 into the conduit 1. When the particular mixing chamber has been filled the discharge wheel 10 is moved along the conduit and covers placed on the openings 2, 3. A screen 21 is provided for the passage of air and dust.
Patent GB-271804-A (GB)
Title: Improvements in tents
IPC: E04H15/00
Filed: 1926-08-03
Abstract: 271,804. Pelterie, R. Esnault-. May 27, 1926, [Convention date]. Addition to 256,242. Tents.-A floor for the tent claimed in the parent Specification comprises a central longitudinal tubular beam a, Figs. 1 and 3, having approximately horizontally disposed cross-pieces c mounted thereon, and such cross-pieces have their outer ends bearing on longitudinal beams e, to which they are fastened. Metal plates o are laid upon such flooring structure. The crosspieces c are preferably formed of tubes of rectangular cross section and fit on tenons of members b, which are riveted to the tube a. The outer ends of the tubes c are connected to the longitudinal beams e by means of U-shaped connecting members f, as shown in Fig. 6. The central beam a is supported by two socket-shaped members h having tenons fitting on the lower supporting uprights i and on tent poles k. The canvas m passes over longitudinal tubes l<2> and around the side beams e and encases the longitudinal tubes l<2> as shown in Fig. 6. Apertures are formed in the canvas m for the insertion of the cross-pieces c, and a laced part n is provided in order that compensation may be made for distortions due to shrinkage of the canvas caused by changes in the humidity oi the air.