baber/WOPTO huggingface dataset:
Patent GB-917560-A (GB)
Title: Process and apparatus for titrating
IPC: G01N27/44
Filed: 1959-05-28
Abstract: 917,560. Determining physical qualities of materials. STAMICARBON N.V. May 28, 1959 [May 29, 1958; Oct. 11, 1958], No. 18286/59. Class 37. Water content in a liquid is determined by passing the liquid together with modified Karl- Fischer reagent through an electrolytic cell in which iodine or bromine is continuously generated. The quantity of unreacted iodine or bromine is determined by the current or voltage at a pair of electrodes and changes in the current or voltage are used to control the generator current. The water content is thus proportional to the generator current. Cell construction.-As shown, the test cell comprises two chambers 1, 4 separated by a porous sintered glass partition 3. The cell may be formed from polyethylene. The upper compartment 4 contains measuring electrodes 6, 7 in the form of platinum rings. Test liquid in which moisture content is to be determined is admitted as a continuous flow via tube 12. Modified Karl Fischer reagent is contained in a vessel 16 and flows into the test cell via tube 11. The solutions are circulated by means of rotating worms 8, 13, the former also rotating electrodes 5, 6, 7. A by-pass tube 9 is also provided. The reagent in vessel 16 contains SO 2 , pyridine and a solution of iodine in methanol. Sufficient water is added to convert all the iodine into HI. A current of some 300 mA. is passed between the platinum electrodes 2, 5 to evolve iodine at the anode 5, which reacts with the water in the test liquid. A potential of 25 mV. is supplied to the test electrodes 6, 7, the current (some 10 ÁA.) being dependent on the proportion of iodine present. The current in the circuit of electrodes 2, 5 and hence the rate of evolution of iodine at the anode 5 is adjusted by an electronic control circuit 21 connected in the current measuring circuit so that the current in the circuit of electrodes 6, 7 is maintained constant. The current in electrodes 2, 5 may be used to control an undescribed process in which the material represented by the test liquid is produced. The instrument 22 records the current in electrodes 2, 5 and hence the moisture content in the test liquid. The measuring electrodes 6, 7 should be located in an equipotential plane of the current field of the generating electrodes 2, 5. The tested liquid is discharged via tubes 17, 23, 20. Hydrog n produced at the cathode 2 issues via vessel 19, filled with a hygroscopic substance. Modifications.-If it is not desired to pass the test sample through the cell, the water may be extracted from it by means of a dry inert gas and then taken up by an organic solvent. The methanol and the iodine in the reagent may be replaced by ethanol or dioxane and bromine. Specification 711,812 is referred to.
Patent GB-774953-A (GB)
Title: Improvements in or relating to a hose coupling and method of making same
IPC: F16L33/207
Filed: 1955-06-24
Abstract: 774,953. Making pipe fittings. WEATHERHEAD CO. June 24, 1955 [July 13, 1954], No. 18304/55. Classes 83 (2) and 83 (4). [Also in Group XXVIII] Jointing by forging.-A method of making a hose coupling comprises machining bar stock to provide a body 5 having a central bore 6, forming an annular rib 8 on one end face of said body coaxially of the bore, providing an opening in the bottom of a metal cup 10 of a diameter equal to the outer diameter of said annular rib, telescoping the opening in the cup on said rib, placing a brass nipple 13 with a projecting flange 14 at one end within said rib with the flanged end of the nipple in engagement with said body and thereafter upsetting said rib to overlie at least portions of the cup bottom and of the nipple, thereby to secure the body, cup and nipple to each other coaxially. The rib 8 is provided with a shoulder 9. The coupling parts are arranged in a holder 16 and a first punch 17 provided with an annular pointed projection 19 displaces the rib 8 outwardly as at 20 and inwardly as at 21 (Fig. 2). The coupling is indexed or transferred beneath a second punch 22 (Fig. 3) which upsets the portion 21 of the rib into overhanging tight engagement with the nipple flange 14. Finally the coupling is indexed or transferred beneath a third punch 25 (Fig. 4) provided with a flat face 27 which forces the rib portion 20 outwardly into tight engagement with the flange 11 of the cup 10. The coupling is now ready for crimping into a length of hydraulic hose 29 as shown in Fig. 5. If the body portion has an internal thread as at 1a (Fig. 6) the parts are arranged on a holder 33 having a stem 34 supporting a pin 35 aligned with the bore in the body portion.
Patent GB-639039-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: B03C1/28
Filed: 1948-07-08
Abstract: 639,039. Holding and picking-up tools; spanners; screwdrivers. GARDNER, A. C. July 8, 1948, No. 18358. [Class 61 (ii) and 61 (iii)] [Also in Group XXXV] A magnetic device for holding and picking up articles comprises a permanent magnet a having one end attached to a surrounding shroud b of highly permeable metal, the space between the two members containing non-magnetic material d. The device is adapted for use in confined spaces by aligning the ends c of the shroud and the end of the magnet and providing a flexible handle e. In modifications, the end of the shroud projects beyond the magnet and is shaped as a box spanner, or is shaped to fit into a standard box spanner and form the handle thereof. In another modification, the shroud is bridged by a bar of non-magnetic material serving as a screwdriver bit.
Patent GB-1246606-A (GB)
Title: Dibenzo-azepine derivatives
IPC: A61K31/55
Filed: 1970-04-17
Abstract: 1,246,606. Dibenzazepine derivatives. STAROGARDZKIE ZAKLADY FARMACEUTYCZNE "POLFA". 17 April, 1970 [28 April, 1969], No. 18362/70. Heading C2C. The novel compound, 5 .chlorocarbonyl - 10- bromo-iminodibenzyl, is prepared by reacting iminodibenzyl with phosgene and treating the resulting 5 - chlorocarbonyl - iminodibenzyl with a brominating agent, preferably 1,3- dibromo-5,5-dimethylhydantoin. 5 - Carbamoyl - 5H - dibenzo - [b,f] - azepine is prepared by dehydrobromination and amidation of 5-chlorocarbonyl.10-bromo-iminodibenzyl. The dehydrobromination and amidation may be effected simultaneously by treatment with ammonia. Alternatively, dehydrobromination may first be effected, e.g. by heating in the presence of a polyamide such as polycaprolactam and preferably also in the presence of an alkali metal or alkaline earth metal salt of a weak acid, to produce 5-chlorocarbonyl-5H- dibem-[b,f]-azepine and this compound then amidated by treatment with ammonia.
Patent GB-405536-A (GB)
Title: Method of and apparatus for dovetailing articles of wood
IPC: B27F1/12
Filed: 1933-06-28
Abstract: 405,536. Cutting dovetails in mouldings. ASPELUND, C. P., 15, Raudararstig, Reykjavik, Iceland. June 28, 1933, No. 18387. Convention date, July 12, 1932. [Class 145 (i).] The bottoms of dovetail slots cut in rounded edges of the work pieces are bounded by arcs whose radii equal those of the rounded edge portions. The wood pieces 8, 9, Fig. 3, are secured at right angles to each other on a slide 3 movable on the table 2, and the slots cut simultaneously in both pieces, as in Fig. 6, by oppositely inclined disc cutters 19, Fig. 1 ; each cutter shaft 14 is mounted on a plate 12 pivotally mounted on the table 2 by shafts 11, the cutters being driven by belts 16 from the main shaft 18. The plates 12 are periodically swung towards and away from the work by members 39, Fig. 4, connected to the plates and to members 37 carried by a pin 30, eccentrically disposed on a shaft 21 mounted on the table 2 ; the shaft is driven from the main shaft 18 by belt 25, worm 23 and worm wheel 22. During the intervals between cuts, the work is fed past the cutters by an arm 31 carried by the eccentric mechanism and engaging a rack 32 mounted on the slide 3 ; a pivoted stop 33 prevents backward movement of the slide which is held against the stop by a weight 36 or by a spring. The dovetailed pieces are assembled as shown in Fig. 8.
Patent GB-313620-A (GB)
Title: An improved booking-record card for the mechanical posting of entries
IPC: B42F5/00
Filed: 1929-06-14
Abstract: 313,620. Senkel, R., and Dueball, E. June 16, 1928, [Convention date]. Statistical cards.-Account cards adapted for the mechanical posting of entries are provided with marginal number-tracks or areas b, Fig. 1, consisting of a series of ten field groups within which perforations may be made to indicate the serial number assigned to the card among a series of cards, thereby enabling a particular card to be selected by passing the series in succession through a machine provided with feeler devices which are set according to the card required. To enable entries to be made upon both faces of the cards the perforated portions b may be arranged either along the left-hand margins thereof, or along the left-hand portions of the upper margins of both faces. When the same entries are to be made upon a number of successive cards, a perforation d, and as many perforations d<1> as there are cards following to receive the same entries, are made at the top of the card to engage corresponding feelers provided on the book-keeping machine. A pivoted tab may be provided at the top of the card and arranged to be swung outwardly to a visible position after the card has received an entry, means being provided on the machine to effect this. Marginal portions a corresponding to the line-space intervals of the card are provided to receive a notch or perforation when an entry is made upon their corresponding line, so that feelers controlling the feed of the cards into the printing position can engage therewith.
Patent GB-1440280-A (GB)
Title: Data handling apparatus
IPC: H04L25/48
Filed: 1974-04-26
Abstract: 1440280 Data encoding INTERNATIONAL BUSINESS MACHINES CORP 26 April 1974 [13 June 1973] 18475/74 Addition to 1440106 Heading G4C Each data bit of a message is encoded as a code bit pair selected to achieve certain frequency and charge accumulation constraints, the encoder comprising a logic circuit responsive to a group of consecutive bits, including a present bit to be encoded, and the present charge accumulation state to produce a code bit pair representing the present data bit to be encoded and an indication of the new charge accumulation state after encoding that data bit. Encoders for various codes both direct (binary level) and indirect (transition significant) having different maximum run length and charge accumulation valves are described of which Fig. 4 is exemplary. Decoders 33, 32, 31 each energize one of four outputs in dependence on the values of the present data bit d0 and the following data bit d1, signals r-1, s-1 representing the charge accumulation state after encoding the preceding data bit d-1, and the code bit pair a-1, b-1 generated to represent data bit d-1. A diode matrix 35 or gating circuits then produce the code bit pair a0, b0 and the corresponding indication of the new charge accumulation state r0, s0 for data bit d0. An error signal E is also produced in the event that an invalid transition is detected-this may be forced for synchronization purposes. Inputs 44 are also provided for setting the latches to an initial value or for generating error outputs. Decoders for the various codes are also illustrated and produce output data bits d0 in response to a group of consecutive pairs of code bits, e.g. stored in a shift register, and, in some codes, signals representing the charge accumulation state after decoding the preceding bit. The encoded data may be stored on magnetic tape or be transmitted.
Patent GB-689200-A (GB)
Title: Improvements in and relating to compositions for the preservation of timber
Inventor: COOK CHARLES DONALD
IPC: B27K3/38
Filed: 1950-07-24
Abstract: A composition for use in the preservation of timber comprises an aryl arsonic acid of the general formula R As O (OH)2 or a water soluble salt thereof, where R is an aromatic for example, benzene or toluene ring which is substituted by a nitro and/or one or more chloro groups or is a naphthalene ring which may or may not be so substituted, together with one or more substances which may or may not have wood preserving properties e.g. an alkali metal or ammonium chromate or dichromate, an alkali metal or ammonium fluoride, an alkali metal or ammonium mono-, di- or tri-arsonate.  Examples of the aryl arsonic acid are naphthyl arsonic acid, o-chlorphenyl arsonic acid, o-nitrophenyl arsonic acid, and 2 : 5-dichlorphenyl arsonic acid and they are preferably used in the proportion of 3-12.5 per cent by weight. It is preferred that the nature and proportions of the ingredients are so chosen that a 2 per cent aqueous solution of the composition will have a pH of 6.5-8.0 at 15.5 DEG  C.  A preferred composition comprises sodium chromate or potassium dichromate, sodium fluoride, disodium hydrogen arsenate and 2 : 5-dichlorphenyl arsonic acid and a specific example has the following proportions by weight respectively 37.5, 25, 25 and 12.5.
Patent GB-1189605-A (GB)
Title: Multi-Layer Vessel and Method of Making Vessel.
Inventor: WOELFER CHARLES G
IPC: B21D51/24
Filed: 1968-04-18
Abstract: 1,189,605. Making multi-layer vessels. NOOTER CORP. 18 April, 1968, No. 18486/68. Heading B3A. [Also in Division F2] A method of making a multi-layer vessel having an inside liner L, includes taking a plurality of segments of substantially uniform thickness having a thickened portion or crown along the centre portion parallel with the longitudinal axis of the segments, and a truncated segment B having an initial edge of a thickness substantially equal to the thickness of the other segments and increasing in thickness to a final edge of substantially twice the thickness of the other segments, and applying the truncated segment as one of the first segments to the liner so that the truncated segment and at least one of the segments of uniform thickness extend completely around the liner; and then applying the remaining segments with their crowns parallel to the axis of the vessel until the desired wall thickness is attained. The liner L is preferably a seamless tube or it may be longitudinally welded. A first segment A is rolled and placed against the liner over 180 degrees of circumference. Segment B is then applied over the remaining 180 degrees, with its edges slightly spaced from those of segment A. Circumferential bands are placed around segments A, B and they are tack welded together. The bands are then moved longitudinally a short distance and more tack welds made. When the segments have been tack welded along their entire length, the bands are removed and a weld bead is applied along the gap a-b, which bead is ground off. Segment C, of substantially constant thickness, is next applied over 220 degrees of circumference and welded to the segment B in a similar manner to the segment A. The 220 degrees wrap of segment C is not critical, but it should preferably be 180 degrees or more and it must be less than 360 degrees. Segments D, E, F, G are applied similarly and a truncated segment H is then applied. Finally section I of substantially constant thickness is applied. The second truncated segment may be omitted, in which ease the exterior of the vessel will have an axial step, Fig. 4 (not shown). To complete the vessel, suitable ends are fitted. The vessel may also be made from segments of varying length as well as of varying widths. If the liner is made from non-weldable metal, e.g. stainless steel, a dummy liner, to which the segments are welded, is applied to the liner L.
Patent GB-223305-A (GB)
Title: Improvements in otter-trawls
IPC: A01K73/045
Filed: 1923-07-18
Abstract: 223,305. Smedley, T. July 18, 1923. Trawling-gear.-Each otter-board 1 is spaced away from the net and is connected thereto by two ropes 2, 3 and by an additional rope 11. A wire rope 12, a little shorter than the total length of the foot rope 6 and the ropes 3, is passed from one otter-board to the other and shackled to both boards and connected by a slack rope 14 to the eye 15. A circular or other frame 7, fitted between the head rope 5 and the foot rope 6, is provided with eyes for attachment of the several ropes.
Patent GB-357233-A (GB)
Title: Piezo-electric crystal mounting
IPC: H03H9/09
Filed: 1930-06-19
Abstract: 357,233. Piezo-electric crystal mountings. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Assignees of Thurston, G. M. ; 2266, Hampden Place, New York, U.S.A.) June 19, 1930, No. 18706. Convention date, Aug. 14, 1929. [Class 40 (v).] To obtain frequency stability a piezo-electric crystal 4 is clamped at its edges between shouldered portions of its two electrodes 1, 5, a spring member 6 providing pressure adjustment through the screw 7, whereby a small amount of frequency adjustment may be effected, A fibre sleeve 8 ensures close fit between electrode 5 and the cover member 2
Patent GB-418194-A (GB)
Title: Improvements in filter linings or grids for centrifugal baskets
IPC: B04B7/18
Filed: 1934-06-25
Abstract: 418,194. Centrifugal filters. HADDAN, R., 31, Bedford Street, Strand, London.-(Western States Machine Co. ; Salt Lake City, Utah, U.S.A.) June 25, 1934, No. 18740. [Class 23.] The filter supporting and spacing grid in a centrifugal basket is formed by a metallic sheet 1 with rows of perforations 2 and intervening rows of depressed dome-like bosses 3. The perforations 2 are slightly offset or countersunk to form a shallow stiffening flange, and the apices of the bosses 3 are notched so that they may be adequately drained. One end of the grid has additional perforations in place of bosses to provide an overlap when the grid is in the basket 10. The grid supports a wire mesh 14, a coarsely perforated backing sheet 15<a> and a finely perforated sieve sheet or filter 15b. The bosses space the grid from the basket wall so that clear passages are provided for the flow of liquid to the outlet holes 10<a>. Specification 218,321, [Class 23], is referred to.
Patent GB-146895-A (GB)
Title: Improved grinding medium
IPC: C09K3/14
Filed: 1920-07-06
Abstract: A medium for grinding-in valves or other metal bodies consists of a mixture of larger harder grains and smaller softer grains, and a viscous binder.  A mixture of 2 parts of metal oxide, such as aluminium oxide, in grains having a diameter of 0.16 mm., and of 1 part of chrome slag, in grains having a diameter of 0.14 mm. bound together by "consistent fat," i.e. a pasty mixture of ceresin and mineral oils, is used for grinding in valves of chrome nickel steel on seats of cast steel.
Patent GB-702484-A (GB)
Title: Arrangement for the packing of powdered, granulated, comminuted and paste-like material
IPC: B65B9/093
Filed: 1951-08-10
Abstract: 702,484. Packaging machines. INDUSTRIEWERKE KARLSRUHE AKT.-GES. Aug. 10, 1951 [Sept 6, 1950], No. 18830/51 Class94 (1) Apparatus for the air-tight packing of powdered, granular, comminuted, or paste-like material between opposed portions ofa travelling web, whereby a web 1 is drawn off, a supply roller 2 and passes to a device 6, 8, for folding the web into a V-shape, beyond which is situated an intermittently working conveyer roller 9 which guides the V-shaped folded web to a pocket-forming sealing station 10 for the sticking together of the sides of the folded web, is characterized by the provision of a cutter 12 for the part-separation of the pockets one from another. The cutter partly severs the folded web along a line extending from the fold of the web to a point short of the upper or outer edges of the web so as to leave the pockets connected together at their mouth portions only, the connected - together pockets passing, after leaving the cutter, beneath a bag-opening device and filling funnel 14, and the pockets afterwards passing to a station where each pocket is closed by sealing its upper or outer edges together, beyond which a delivery roller 18 is situated which carries the band-like packing envelope to a cutter 20 by which the completed individual packets are separated and freed for removal. At the filling-station the bag strip is held by pairs of cheeks 23, 24 the cheeks 24 being moved towards the cheeks 23 when the filling funnel 14 is inserted. To compensate for the consequent backward movement of the strip of filled bags the delivery roller 18 is driven through a spring coupling 19 which allows a reverse movement of the roller. The sealing of the bags is completed by heat-sealing members 16.
Patent GB-810220-A (GB)
Title: Improved magnetic separator for paper stock
Inventor: CULLEN MATTHEW GERARD
IPC: B03C1/28
Filed: 1956-06-19
Abstract: 810,220. Magnetic separators. COOKE & CO. (1932) Ltd., H. May 16, 1957 [June 19, 1956], No. 18886/56. Class 117 A magnetic separator for treating paper stock comprises a body made of two bronze inlet and outlet castings 7, 8 separated by a brass plate 9. Paper stock from which magnetic tramp metal is to be removed passes via an inlet 13 into a compartment 11, and after passing through a communicating aperture 15 into a compartment 12 flows upwardly past two mild steel magnet poles 27 secured to pole pieces 31 of an electromagnet 4, the treated stock then passing through an outlet 14. The separ- 56 ator may be used under pressure which may be observed by gauges mounted in connections 34, the falling off of the outlet pressure also indicating when the separator should be cleaned; inlets for flushing water are provided. To effect cleaning, the inlet 13 is closed and flushing water is admitted on the inlet side for a short period after which the outlet 14 is closed Fibres and large foreign bodies which settle in the bottom of the compartments 11, 12 are then removed by opening a bottom cover plate 19, the magnet 4 still being in operation. The magnet is then switched off, metal collected on the poles 27 drops clear and the compartment 12 flushed before the bottom is closed. If no interruption of flow is desirable, two separators may be connected in parallel and provided with change-over valves. There may be a number of communicating apertures in the plate 9. D.C. of 175 volts or from 50-100 volts may be used to energize the electomagnet.
Patent GB-120917-A (GB)
Title: An Improved Direct-driven Electric Lighting Apparatus for Cycles and other Road Vehicles.
Inventor: DUFAUX CHARLES FREDERIC
IPC: B62J6/06
Filed: 1918-11-18
Abstract: 120,917. Dufaux, C. F. Nov. 16, 1917, [Convention date]. Brackets, electricl a m p ; materials, special.-According to the Specification as o p e n to inspection under Sect. 91 (3) (a), a vehicular lamp has an annular part 56, Fig. 13 (Cancelled) of aluminium, and is supported by an iron strip 57, clamped directly on the steering tube 25 or on the handle bar, or on a lantern bracket. This subject-matter does not appear in the Specification as accepted.