baber/WOPTO huggingface dataset:
Patent GB-1220408-A (GB)
Title: Photographic sheet material processing apparatus
IPC: G03D13/00
Filed: 1968-10-04
Abstract: 1,220,408. Photographic processing apparatus. FUJI SHASHIN FILM K.K. Oct.4, 1968 [Oct.19, 1967], No.47149/68. Heading G2A. A sheet 1 of heat developable photo-sensitive material is fed from right to left (as seen) between guide portions 3, 4 and an auxiliary guide member 10 of the apparatus, the parts 3, 4, 10 being shaped such that any plane perpendicular to the direction of motion of the sheet cuts the parts 3, 4, 10 in a continuous curve. The sheet is guided between wheels 5, 6 extending upwards through slots (7), 8 Fig.2 (not shown) and wheels 12, 13 the former extending downwardly through slots (11) in the member 10. The member 10 also guides the sheet over the heater 9 housed in a recess 2 between the portions 3, 4. If desired, the parts 3, 4, 10 may have a wave form cross-section Fig.4 (not shown), and the feeding wheels may be made of flexible material in the form of curved rollers (18) Fig.5 (not shown).
Patent GB-1023741-A (GB)
Title: Electronic telegraphic distortion indicator
IPC: H04L12/26
Filed: 1962-12-17
Abstract: 1,023,741. Telegraphy. SOC. SINTELCO. Dec. 17, 1962 [Dec. 18, 1961], No. 47486/62 Heading H4P. The invention provides an apparatus for indicating the telegraph distortion of a received telegraph signal. The indicator comprises a panel of neons, there being as many rows as there are elements in a character and as many columns as are necessary to show the distortion to the desired degree of fineness. Upon reception of a start pulse at I, clock pulses from G pass to counter C which, after 10 m.secs., permits the clock pulses to be fed to distributer D, whereby the neons in each row are sequentially connected in circuit, row following row. The transitions of the telegraph signal, via unit F, cause all the neons to be pulsed. Hence the neon connected in circuit when a transition occurs will glow, indicating the distortion by its position in the display panel. The various circuit elements are reset to zero after a pulse count corresponding to a complete character. The above-mentioned 10 m.secs. has the effect of making the centre neon of each row correspond to a zero distortion signal, it being arranged that this neon corresponds to a smaller time interval than the other neons. By making the rest voltage of unit F higher than the extinction voltage but lower than the ignition voltage the neons show the distortion of each element until the apparatus is reset.
Patent GB-1370777-A (GB)
Title: Electrodes for electro-chemical cells
Inventor: WAKEFIELD B
IPC: H01M50/534
Filed: 1970-10-06
Abstract: 1370777 Welding by pressure EVER READY CO (GREAT BRITAIN) Ltd and B WAKFIELD 17 Sept 1971 [6 Oct 1970] 47495/70 Heading B3R [Also in Division H1] In the manufacture of a porous impregnated electrode for an electrochemical cell, e.g. a sintered nickel electrode impregnated with nickel or cadmium oxides or hydroxides in a nickel-cadmium cell, an electrically conducting metal tag 12, for example of nickel or nickelplated steel, is welded to the porous impregnated electrode material 14 which may be in the form of a layer on a metal support strip 13, by a method which comprises the steps of forming a layer 15 of sintered metal, e.g. nickel, on the tag, pressing the tag against the material 14 with the sintered layer 15 adjacent the material 14, Fig. 5, and welding the two together by passage of electric current. Pneumatically operated welding electrodes of circular cross-section which deliver a short duration, high current pulse may be used. A cell incorporating two such formed electrodes has two electrode strips 11, 11a coiled round and separated from each ether by a porous separator 23. Tags 12 on electrode 11 are welded at 24 to a conducting top plate 20 and the tags on electrode 11a are welded at 25 to the base of the metal can 18.
Patent GB-475045-A (GB)
Abstract: 475,045. Loose-leaf binders. JONES (TWINLOCK), Ltd., P., BIGG, H. T., and SUNDERLAND, S. H. May 11, 1936, Nos. 13262 and 15731. [Class 146 (i)] A loose-leaf binder in which the leaves are held between clamping-bars 1 drawn together by springs la and provided with leaf-holding posts 3 movable along the bars 1 to engage in or to be disengaged from slots or notches in the side or back edges of the leaves has movable postcarrying members spring-urged to their leaf - retaining positions and movable against the action of the springs by implements inserted through apertures in the walls of the clamping-bars. As shown, the posts 3 are carried by levers 4 pivoted on pins 5 in the clamping-bars 1 and urged by springs 10 to leadretaining position. A pin 11 on each lever 4 engages a slot 12 in a pivoted locking-lever 13 controlled by a spring 15 and adapted to prevent movement of the lever 4 when it is in its leaf-retaining position. Instead of the pin-and-slot connection 11, 12, interengaging hook members may be provided on the levers 4, 13. To move each post to leaf-releasing position, an implement is inserted in an opening 16 in the clamping-bar and first engages the lever 13 so as to release the lever 4 and then actuates the lever 4. Straight levers 4 may be employed instead of bent levers, or sliders may be employed in place of the levers 4. Leaf-aligning posts 2 are provided in addition to the leaf-retaining posts 3. A device is provided for manipulating the book to release the leaves and comprises a base-board 19, Fig. 7, with two slidable blocks 20 movable apart by a handle 26 through rack-and-pinion 23, 24 or link mechanism. The clamping-bars 1 are adapted to rest on the blocks 20 which are provided with pins engaging the bars so as to cause them to move with the blocks. As the bars 1 are moved apart, cams 27 on the board 19 enter the openings 16 and engage the levers 13, 4 to move the posts 3 to leaf-releasing positions, at the same time preventing upward movement of the bars by the fact that they move over the inner faces of the outer walls of the bars 1. Pins on the blocks 20 engaging holes in the bars 1 may, however, be provided for this latter purpose. Also other pins may be provided on the blocks 20 so as to enter recesses in the bars 1 and operate the levers 13, 4 when the bars 1 are placed on the blocks 20, the cams 27 then being dispensed with.
Patent GB-1165179-A (GB)
Title: Derivatives of Rifamycin SV
Inventor: MAGGI NICOLA
IPC: C07D498/08
Filed: 1966-10-25
Abstract: 1,165,179. Derivatives of rifamycin SV. GRUPPO LEPETIT S.p.A. 18 Oct., 1967 [25 Oct., 1966], No. 47899/66. Heading C2A. The invention relates to 3-thio derivatives of rifamycin SV of general formula wherein R is a carboxyalkyl, aminoalkyl, di- C 1 -C 8  alkylaminoalkyl, benzimidazolylethyl, 2- (carboxymethylcarbamyl) - 2 - (γ - amino - γ - carboxypropionamido) ethyl, guanidinoethyl, 2-acetamidoethyl or pyrrolidinomethyl. The compounds are prepared by reacting rifamycin S with 1 to 2À5 equimolecular amounts of a thio derivative of formula RSH in which R has the above significance, in an aqueous organic solvent for 20-120 minutes at 0‹ to 30‹ C. During the reaction, the 1,4-quinone group of rifamycin S is reduced to the 1,4-hydroquinone group of rifamycin SV. Typical compounds are 3-glutathionyl-, 3-(2<SP>1</SP>-aminoethylthio)-, 3-(2<SP>1</SP>- guanidinoethylthio)- and 3-pyrrolidinomethylthiorifamycin SV. The compounds have antibacterial activity. A therapeutic composition comprises a 3-thio derivative of rifamycin SV as above and a carrier.
Patent GB-1179966-A (GB)
Title: Pressure Vessel Including a Clevis Joint and Process for the Manufacture Thereof.
Inventor: GROSH JAMES LUTHER
IPC: B29C65/00
Filed: 1967-10-23
Abstract: 1,179,966. Pressure vessel. UNITED AIRCRAFT CORP. 23 Oct., 1967, No. 48069/67. Heading B1X. [Also in Divisions B7; B8; Fl; F2 and F3] Pressure vessels such as chemical reaction vessels are made by a process comprising forming a fibre glass vessel 6 with an annular member 10 embedded therein, parting the vessel along the centre line of the annular member, removing the severed annular member leaving two portions of the vessels with an annular slot in the ends of each of the portions, inserting at least one element (16) in the slots, reassembling the vessel portions with their slotted end faces in abutting engagement, forming holes through each of the vessel portions and the element, and inserting connecting means 20, 22 in the holes to hold the vessel 6 together. The glass fibres which are coated with an epoxy resin are spirally wound to form a vessel on a removable mandrel. The wall is thickened in the region of the annular member by winding in metal foil, wire, ceramic filaments or glass fabric. The annular member 10 is made of rubber, or of a material which can be dissolved or melted out of the wall. The element 16 comprises a hoop or series of tabs made of metal or plastics.
Patent GB-1416028-A (GB)
Title: Venetian blind having a cord lock which is actuated upon full raising of the blind
IPC: E06B9/324
Filed: 1973-10-16
Abstract: 1416028 Venetian blind LEVOLOR LORENTZEN Inc 16 Oct 1973 [10 Nov 1972] 48171/73 Heading E1J A Venetian blind which locks only when the blind is fully raised comprises a cord lock having a locking dog 36, pivoted on a pin 60, and an actuator 44, which is a continuation of the dog, having a cross bar 46, a finger 47 and an arm 48. When the blind is raised the top slat 20 acts on the finger 47 bringing the locking dog into the locking position so that the lift-cords 24, 25 are locked between the edge of the leg 37 and the cylindrical cord guide 30f. To lower the blind pulling the lift-cords causes them to press on the cross bar 46 withdrawing the locking dog from the locking position; the finger 47 or the slats must be flexible enough to allow this movement. The arm 48 is to prevent the cords becoming wedged between the dog and the front wall of the cord-lock shell.
Patent GB-1326513-A (GB)
Title: Process for the preparation of a pyrazole derivative
IPC: C07D231/34
Filed: 1971-10-15
Abstract: 1326513 Pyrazole derivatives SOC D'EXPLOITATION DES LABORATOIRES BOTTU 15 Oct 1971 [22 Oct 1970] 48185/71 Heading C2C The novel compounds I in which M is H, a metal or an organic base are prepared by reacting phenylbutazone with glyoxylic acid and optionally forming a salt.
Patent GB-1380637-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P5/155
Filed: 1972-10-20
Abstract: 1380637 Ignition systems ROBERT BOSCH GmbH 20 Oct 1972 [23 Oct 1971] 48341/72 Addition to 1338848 Heading F1B In an ignition system for an internal combustion engine, according to Specification 1338848, the control circuit includes a level detector (Schmitt trigger 10) to the input of which is applied the output of the demodulator 5, the output of the level detector being applied to a fre-  quency to voltage converter 13, 14, 15 whose output voltage is arranged to be superimposed on the output voltage of the demodulator. The frequency to voltage converter comprises a monostable multi-vibrator 13 having an integration circuit 14, 15 coupled to the output thereof. The primary winding of the coupling transformer 19 is supplied with a high frequency voltage by an astable multi-vibrator 20 while an output voltage from the secondary winding is demodulated by a diode 21 and a capacitor 22. The demodulated voltage is fed to the input of the Schmitt trigger 10. A pressure sensitive device 17 is associated with a sheet metal member 18 which is movably arranged in an air gap of the transformer 19.
Patent GB-1359987-A (GB)
Title: 2-substituted biphenylyl propionic acids
IPC: C07C57/58
Filed: 1970-10-12
Abstract: 1359987 2 - (halogenated biphenyl)- propionic acids and esters BOOTS CO Ltd 17 Sept 1971 [12 Oct 1970] 48405/70 Heading C2C Novel compounds (I) in which R 1  is fluorine or bromine, one of R 2  and R 3  is fluorine or bromine and the other is hydrogen and R is hydrogen or C 1 -C 7  alkyl and their salts when R is hydrogen are prepared by (1) oxidation of a corresponding propionaldehyde (II) in aqueous ethanol using an alkali metal hydroxide and silver oxide, or (2) dicarboxylation of the corresponding malonic acid (III) and if desired esterifying the corresponding acid to form compounds I in which R is C 1 -C 7  alkyl. Compounds II are prepared by a Darzens reaction with a corresponding R 1  and R 2  or R 3  substituted - 4 - acetyl - biphenyl; the halogen substituents are introduced where necessary by a Sandniger or Schieman reaction on an amino-biphenyl prepared by reduction of a nitro-biphenyl and the acetyl substituent is introduced where necessary by a Friedel- Crafts reaction. Compounds III are prepared by reaction of the corresponding (R 1  and R 2  or R 3  substituted biphenyl)-acetic acid ester with diethyl carbonate and dimethyl sulphate; the acid being prepared by a Willgerodt reaction on R 1  and R 2  or R 3  substituted 4-acetyl biphenyl prepared as above. Biphenyl starting materials are prepared where necessary by linking phenyl residues using the Ullmann or Gomberg reaction. Compounds I possess anti-inflammatory analgesic and anti-pyretic activity and form with an excipient a pharmaceutical composition which may be administered orally, parenterally, rectally or topically.
Patent GB-1118699-A (GB)
Title: Improvements in and relating to rotary tooth brushes
IPC: A61C17/26
Filed: 1966-10-28
Abstract: 1,118,699. Rotary toothbrushes.. S. LADEGAARD. 28 Oct., 1966, No. 48408/66. Heading A4K. A rotary toothbrush, in which flexible shafts 4 are journalled in diverging pairs of arms 6, 7, 8 and 9, provides a pair of contra-rotating concave brushing surfaces 3 for the outer faces of the upper and lower rows of teeth in the same side of the mouth and, on reversing the direction of rotation and aligning the spine 5 with the opposed biting surfaces of the teeth, a pair of convex brushing surfaces for the inner faces of these rows of teeth. An electric drive motor (10) may be detachably or permanently installed in the handle 1. Alternatively, a separate motor (11) may be connected to the brush by means of a flexible drive shaft (12).
Patent GB-1485018-A (GB)
Title: Earth-moving bowl type scraper
IPC: E02F3/65
Filed: 1974-11-08
Abstract: 1485018 Earth-moving bowl type scrapers CATERPILLAR TRACTOR CO 8 Nov 1974 [19 Nov 1973] 48454/74 Heading E1F In an earth-moving bowl type scraper 13 the actuating means 53, 54, 60 for the movable floor means 28 of the bowl of the scraper are located entirely between the ground surface supporting the scraper and a plane extending through the axis of the rear wheel axle of the bowl parallel to said surface and include a dolly 54 supported for movement along a pair of guide tracks 37 defined by beam means 34 of the axle carrying frame 33, 34 at the rear of the scraper bowl. Preferably the actuating means comprise a ram 60 pivotally attached to the rear of bowl and to the dolly 54, which is in the form of a box frame supported by rollers 56 in tracks 36 formed by the opposed U section beams 3 of the frame 33, 34, which is provided with a push pad. A link 53 extends between the dolly and the floor means 28, which is pivoted within the bowl by said actuating means about a transverse axis 31. The centres of curvature of the rear wall 21 of the bowl lie on the axis 31. U.S. Specifications 3563328 and 3452458 are referred to.
Patent GB-1198810-A (GB)
Title: Dynamic Pressure Converter
Inventor: LEPELLETIER PIERRE ANDRE GEORG
IPC: B60T8/18
Filed: 1967-10-25
Abstract: 1,198,810. Pressure adjusting means for brakes. SOC. ANON. FRANCAISE DU FERODO. 25 Oct., 1967, No. 48586/67. Heading F2F. Fluid-pressure adjusting means for vehicle brakes comprises a piston sliding in a bore and connected by a rod to means capable of applying mechanical force thereto in either direction, communication across the piston being provided by a ball valve actuated by a finger connected to an auxiliary piston which is spring- loaded to tend to close the valve, both pistons being actuated by the hydraulic pressure source. In Fig. 1 the piston 13 defines one chamber 33 connected to a master cylinder (not shown) via line 34 and another chamber 30 connected to the rear axle brakes via lines 31, 32. The unit is carried by a non-suspended part of the vehicle while the piston is connected via rod 16 and the link shown to the chassis of the vehicle. With a standard load on the vehicle, no axial force is applied to this link, and the piston floats under the influence of a spring 45 which urges an auxiliary piston 39 against the lefthand end of piston 13. A finger 38 on the piston 39 holds a ball 36 away from its seat and allows communication between chambers 30 and 33. Pressure by the brake pedal on the master cylinder is therefore transmitted unchanged to the brake cylinders. At a certain value of pressure, the auxiliary piston 39 is forced back against its spring 45 and closes the valve 36. Both pistons are then driven to the left, and thereafter the brake-cylinder pressure rises at a lower rate than the master-cylinder pressure in the ratio (S1-S2)/S1. At a still higher pressure, the ring 17 enclosing the rod 16 is driven to the right against a spring 26 and the ratio of the pressures drops further to (S1-S3)/S1. With a lightly loaded vehilce (Fig. 2, not shown) the link pulls the rod 16 to the right so that the piston 13 abuts a shoulder 51. Now, as the first critical pressure is reached and the valve 36 closes, the increase in pressure is taken up by leftwards movement of the auxiliary piston 39 and the brake-cylinder pressure remains constant. At a second value of pressure the pull of the link will be overcome and the brake pressure will rise at a rate (S1-S2)/S1 as before. At a third value this will change to (S1-S3)/S1 when the ring 17 moves to the right. With a vehicle heavily loaded at the rear (Fig. 3, not shown) the link pushes rod 16 to the left and both pistons are driven to their extreme left positions with the valve 36 open. The brake-cylinder pressure then follows the master-cylinder pressure to a higher value than was the case in Fig. 1 before the change to the rate (S1-S2)/S1 occurs.
Patent GB-1158226-A (GB)
Title: Improvements in or relating to Slack Adjusters for Disc Brakes.
IPC: F16D65/14
Filed: 1967-10-26
Abstract: 1,158,226. Automatic slack adjusters for disc brakes. ALFRED TEVES G.m.b.H. 26 Oct., 1967 [27 Jan., 1967], No. 48689/67. Headings F2E and F2F. In a floating caliper disc brake operable alternatively by a piston assembly 12, 1 and a lever 3, the lever is located in the piston assembly and bears on one side against the end of the assembly and on the other against a pin which is screw threaded to the caliper, the arrangement being such that rotation of the lever operates the brakes and through a ratchet and pawl can rotate the pin to take up the slack. As shown, rotation of the lever advances the piston by means of a ball and ramp arrangement. The lever, on its right hand face, is formed with teeth 10 (Fig. 4) and the pin carries a disc 9 having two bent up arms 9a (Fig. 2) which act as pawls so that if rotation of the lever is sufficient to advance the pawl to the next tooth the reverse rotation on release of the brake screws out the pin to take up the slack. The brake pad assembly 13 is secured to the piston assembly and the float of the caliper necessary to apply the indirectly operated pad to the disc may result from resilience of the housing.
Patent GB-1387191-A (GB)
Title: Corrosion-resistant interior lining for composite reinforced  plastics structures
IPC: B29D23/00
Filed: 1972-10-24
Abstract: 1387191 Plastics pipes JOHNS MANVILLE CORP 24 Oct 1972 [10 Nov 1971] 48905/72 Heading F2P A composite reinforced plastics structure comprises: (a) a tubular body portion comprising reinforced plastics material; and (b) a tubular corrosion resistant lining 10 located within and bonded to the body portion; the interior lining including a fibrous sheet 16 which has a breakelongation of at least 40% and is formed of fibres that retain at least 50% of their tensile strength when exposed to 60% sulphuric acid at 70‹ F. for 100 hours, an adjacent layer 14 of woven fibres located between said fibrous sheet and said body portion, said layer of woven fibres having a break-elongation of at least 20% and being formed of fibres that retain at least 50% of their tensile strength when exposed to 60% sulphuric acid at 70‹ F. for 100 hours, and a cured acid resistant resin matrix 18 bonding the fibrous sheet, the layer of woven fibres and the body portion together in laminar relationship. The woven layer and the fibrous sheet (which preferably has spaced perforations therein) may be formed of polyester, polypropylene or polyamide fibres, the fibrous sheet preferably comprising spun bonded crimped polyester fibres. The matrix resin may be a polyester or epoxy resin. When the structure is a large diameter pipe, the interior lining comprises a second sheet 12 of spun bonded fibres located between the woven layer and the body portion. In the embodiment of Figs. 1 and 2, the matrix resin 18 bonds the interior lining to the remainder of the pipe wall which includes alternating layers 22 of glass filaments and layers 24 of sand bonded together by a cured polymeric matrix, the exterior wall surface of the pipe being formed of a resin bonded layer 23 of coarse granular material, the wall surface 13 forming the inner wall surface of the structure comprising polymeric resin binder. In the embodiment of Fig. 3 (not shown), two woven fibrous layers are sandwiched between the two fibrous sheets. In Example 1, a structure according to the invention is made by perforating a spun-bonded polyester fibre fleece, saturating the sheet with a polyester resin, wrapping the sheet on a rotating mandrel, saturating a woven polyester fabric with the polyester resin, winding the saturated fabric on the rotating mandrel and then completing the pipe build up by applying to the rotating mandrel alternating layers of glass fibre containing a resin and sand.
Patent GB-1092117-A (GB)
Title: A process for the production of cellulose and a cellulose produced thereby
Inventor: HOPNER THEODOR
IPC: D21C5/00
Filed: 1964-12-03
Abstract: In a chemical process for obtaining a pulp suitable for the production of rayon and staple fibre from the wood of Hevea brasiliensis, the material is beaten to break up vascular material, and then separated in a centrifugal cleaner.  In the Example, the material is prehydrolysed in water and then digested in a solution of sodium hydroxide and sodium sulphide.  It is then treated with dilute alkali solution and separated on a vibratory screen and then in a three-stage cleaner system.  The rejects are treated in a hammermil, a hollander or a refiner, and then passed through a centrifugal cleaner.  A first bleaching is carried out with chlorine and alkalising and a second using hypochlorite. Accepted pulp from the second separation may be added to that from the first.  The product can be xanthated, filtered and spun.
Patent GB-1073470-A (GB)
Title: Fluid ducts
Inventor: PIERCE DONALD
IPC: G01M9/04
Filed: 1964-12-04
Abstract: 1,073,470. Wind tunnels; aircraft engine intakes. POWER JETS (RESAERCH & DEVELOPMENT) Ltd. Dec. 3, 1965 [Dec. 4, 1964], No. 49443/64. Heading B7G. [Also in Divisions F1 and G3] A fluid duct has a flexible wall 16 pivotally mounted on arms 17 pivoted at 18 to a base 19, and jacks 28, 30 are arranged to apply tension to the wall to vary its profile. In operation, the downstream jack 28 is set to a predetermined position and the upstream jack 30 applies a predetermined load. The upstream end of the wall is slidable between fixed parts 32, 33 of the duct. The arms may alternatively be leafspring cantilevered instead of pivoted at 18. The duct may form part of a wind tunnel, two opposed walls being flexible as described above, and the other two walls being parallel; or of an hydrodynamic testing tunnel; or of an aircraft jet propulsion engine intake or exhaust duct.