baber/WOPTO huggingface dataset:
Patent GB-780820-A (GB)
Title: Improvements in or relating to double needle sewing machines
IPC: D05B3/02
Filed: 1955-03-22
Abstract: 780,820. Sewing machines. PFAFF, AKT.-GES., G. M. March 22, 1955 [March 29, 1954], No. 8315/55. Class 112 The needle bars 10, 11 of a twin needle sewing machine are arranged contiguously to form a cylindrical structure, a reciprocably driven sleeve 6 surrounds the needle bars and means are provided for releasably coupling each needle bar to the sleeve. The needle bars are slidable in a bearing 7 formed in a structure 8 suspended from a pin 9 in the head of the machine. The sleeve is connected by a link 3 and crank 2 to the driving shaft 1. A pair of arms 18, 18<SP>1</SP>, formed at their respective bases with holes 17, 17<SP>1</SP>, project upwardly from a horizontal flange 16 provided at the upper end of the sleeve. Each needle bar is formed with an apertured lug 13, slidably receiving a coupling pin 15 adapted to be projected into or retracted from one of the holes 17, 17<SP>1</SP>. The coupling pin associated with needle bar 10 is fixed to a sleeve 14 slidably mounted on a vertical rod 19 which is movably supported in structure 8 and is biased towards the needle bar by a spring 23. The coupling pin associated with needle bar 11 is fixed to a sleeve 14<SP>1</SP> slidable on a vertical rod 19<SP>1</SP> which is biased towards the needle bar by a spring 23<SP>1</SP>. Cranks 24, 24<SP>1</SP> rotatable respectively by cranks 26, 26<SP>1</SP> and rods 27, 27<SP>1</SP>. are adapted to engage lugs associated with the respective rods 19, 19<SP>1</SP> for moving the latter away from the needle bars to uncouple the latter from the sleeve. An uncoupled needle bar is carried by flange 16 to its uppermost position, where its movement is cushioned by an abutment 32 carried by a leaf spring 31, and in which it is held by a respective leaf spring 29 engaging under a lug 28. 28' provided on sleeve 14, 14<SP>1</SP>. When a rod 19, 19<SP>1</SP> is freed, the associated coupling pin is projected against the sloping front surface of an arm 18, 18<SP>1</SP> and is thereby guided into a hole 17, 17'.
Patent GB-705341-A (GB)
Title: Improvements in pile fabrics and method of manufacture
IPC: D03D27/06
Filed: 1952-04-02
Abstract: 705,341. Wire tapestry looms and fabrics. MOHAWK CARPET MILLS, Inc. April 2, 1952 [July 27, 1951], No. 8396/52. Classes 142(2) and 142(4) Pile of four, five, and six heights is produced by employing spoon wires, Fig. 1. which rob yarn from the preceding loops, with or without plain wires, in combination with the method of Specification 677,955, in which pile warp is pushed up into loops behind pile wires on beat-up of the weft, as at L, Fig. 7. The sequence of wires reading from left to right on Fig. 7, produces the five heights of pile shown in Fig. 8. The highest loops H<SP>6</SP> result when spoon wires S<SP>1</SP>, S<SP>2</SP> are withdrawn; loops H' are produced by plain wires P<SP>2</SP>, but if the yarn passes over the succeeding spoon wire, as at P<SP>1</SP>, S<SP>1</SP>, a lower loop H<SP>3</SP> is formed instead; pushed-up loops L remain at the initial height H<SP>2</SP> if the yarn next passes over a plain wire, but are reduced to the height H' if robbed by a spoon wire, as at L, S<SP>2</SP>. In order to weave six heights of pile, pairs of spoon wires alternate with pairs of plain wires, pile of five heights being produced as described above; in addition, when the yarn passes over two spoon wires in succession, Fig. 10, withdrawal of the second wire S<SP>4</SP> robs yarn from the loop formed by the first wire S' to produce a loop of height H<SP>5</SP>, Fig. 11. For weaving a fabric having four heights of pile, all the wires have spoons, the resulting pile being of heights H<SP>1</SP> H<SP>2</SP>, H<SP>5</SP>, H<SP>6</SP>.
Patent GB-1313988-A (GB)
Title: Construction of chair more  particularly a chair for an invalid
IPC: A61G5/10
Filed: 1972-02-23
Abstract: 1313988 Chairs F X KEANE 23 Feb 1972 [2 March 1971] 8450/72 Heading A4J [Also in Division B7] A seat assembly 11 for a chair e.g. a wheelchair 10 comprises an outer member 12 having an aperture to receive a central member 13 which is reciprocated vertically to reduce decubitus ulceration by means of a cam 29 - driven by electric motor 27 via reduction gearing 28 - and a follower 32 attached to central member 13. The outer member 12 has clips 14 for attachment to a chair. The seat padding may comprise (a) an open cell foam plastics cushion; (b) a sponge rubber sectional padding and (c) a rubber or elastic diaphragm fastened to the outer and central members and spanning the gap between them. The relative positions of seat members 12, 13 may be adjustable manually.
Patent GB-1276253-A (GB)
Title: Halogenated heterocyclic compounds
Inventor: BOWDEN ROY DENNIS
IPC: C07D213/61
Filed: 1970-02-23
Abstract: 1276253 Octachlorobipyridyls IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [23 Feb 1970] 8481/70 Heading C2C Octachloro - 2,3<SP>1 </SP>- bipyridyl and octachloro- 2,4<SP>1</SP>-bipyridyl are prepared by vapour-phase chlorination of the corresponding unsubstituted bipyridyls. The products are herbicides.
Patent GB-235978-A (GB)
Title: Artificial whalebones and their manufacture
IPC: B21F43/00
Filed: 1924-04-04
Abstract: 235,978. Josse, A. April 4, 1924. Extrusion machines.-Stiffeners for corsets &c. are made by arranging a number of elastic metal wires parallel to one another a small distance part, and covering them with a coating composition which surrounds each wire, and produces a blade flexible to all movements. Wires 6, Fig. 1, are drawn from bobbins 1 past spring- controlled braking rolls 2 round a grooved roll 11. They are spaced by passing between rolls 12, and coated with cellulose acetate, viscose, celluloid, artificial rubber, &c., forced from a cylinder 26, in a chamber 32 from which they are drawn through a draw plate 13, and through a drying chamber 14, by belts 17, 18, to a roll 19. The coating means is shown inverted in Fig. 2 and consists of a chamber 32 through which passes a member 28 of square cross-section at the end which slides in a sleeve 24, and circular and threaded at the other end where it passes through a threaded adjusting-sleeve 29. The squared end of the member has grooves 31 along which the coating composition passes to the wires which pass through a guide 27, immediately before they are drawn through the plate 13.
Patent GB-550503-A (GB)
Title: Improvements in and relating to joints and terminations for electric power cables
IPC: H02G15/24
Filed: 1941-07-08
Abstract: 550,503. Cable joints ; cable-end sleeves. STANDARD TELEPHONES & CABLES, Ltd., and LEE, E. C. July 8, 1941, No. 8599. [Classes 36 and 38 (i)] A cable joint or termination enclosed in a sleeve filled with an extrudable compound comprising polystyrene or plasticized polystyrene, has a wrapping of tape impregnated with a mixture of rubber and styrene to prevent the formation of spaces between the compound and the joint at points where there is a substantial difference of potential across the compound. The joint may be made as described in Specification 529,903, a preformed structure 5 embodying stress cones being-used, the wrappings 42, 43 of acetylated cotton tape impregnated with rubber styrene being applied to cover the cable ends 14, 15, the cable insulation 12, 13, built-up insulation 38, 39 with binding wires 40, 41 and the ends of the sheaths 10, 11. Plasticized polystyrene is then forced in through plug holes 50, 53 by the method described in Specification 540, 300. A termination is similarly formed but the metal sleeve 27 on which the structure 5 is built up is, in that case, flanged at one end to be clamped to the cable terminal. Specification 541,816 also is referred to.
Patent GB-1133863-A (GB)
Title: A process for the preparation of hydrated iron oxide
IPC: H01F1/03
Filed: 1966-02-28
Abstract: 1,133,863. Hydrated ferric oxide. SOC. EDISON. 28 Feb., 1966 [3 March, 1965], No. 8772/66. Heading C1A. Hydrated ferric oxide (FeO 2 H) is precipitated by adding an aqueous solution of a ferric salt to an aqueous solution of a ferrous salt containing hydrated ferric oxide (FeO 2 H) as a nucleating agent, the mixture being maintained at 50-100‹ C. and pH 2-5. The precipitate may be subsequently filtered and dried at below 300‹ C. to give a yellow pigment; calcination at 400-600‹ C. gives a red pigment. Preferably the ferric salt solution contains 50-600 g. of ferric salt per litre of solution and the ferrous salt solution 10-500 g. A preferred molecular ratio Fe(II)/Fe(III) is from 1 to 30. Specified salts are ferrous sulphate, ferrous ammonium sulphate, ferrous chloride, ferric sulphate, ferric chloride, ferric alum. A base may be added simultaneously with the ferric salt solution to adjust the pH. The nucleating agent may be prepared by precipitation of ferrous hydroxide by NaOH from a solution of ferrous sulphate and oxidation of the hydroxide with an oxidizing agent.
Patent GB-479252-A (GB)
Title: Process for the manufacture of alcohols and derivatives thereof
Filed: 1937-03-25
Abstract: The process described in the parent Specification in which germinal gland hormones of the type of the follicle and the testicle hormones, and also compounds of similar constitution which have a similar physiological effect, are caused to interact with metal organic compounds is extended to include the treatment in the same manner of compounds of the etio cholane series.  The products so obtained are di-alcohols which have, however, little or no physiological activity, but which serve as intermediate products in the production of physiologically-active compounds. Hydroxyl groups in the starting materials such as 3-hydroxy-etio-cholanone-(17) and its epimer may be protected during the process of the invention by convertion into groups which on hydrolysis are reconverted into hydroxyl groups such as ether or ester groups.  The preferred metal organic compounds are the Grignard compounds, but other metal organic compounds capable of converting a keto group into a hydroxyl group may also be used, such as are described in Houben Weyl, Methoden der Organischen Chemie. According to the type of organic metal compound selected, the resulting hydroxyl group produced may be either a secondary or a tertiary hydroxyl group.  If a hydroxyl group in the starting material is protected by an ester or an ether group, it is possible by corresponding selection of the reaction components to so treat the product of this invention to produce dialcohols in which the two hydroxyl groups are replaced by the same or different groups which on hydrolysis can be reconverted into hydroxyl groups.  In examples: (1) an ether solution of 3-hydroxy-etio-cholanone-(17) is treated with magnesium methyl iodide, and the reaction product decomposed with hydrochloric acid to yield 17-methyl-etio-cholandiol-(3 : 17); (2) 3-epi-hydroxy-etio-cholanone-17 is treated as in example (1); (3) an ether solution of 3-hydroxy-etio-cholanone-(17)-acetate-(3) is treated with isopropyl magnesium iodide, and the product decomposed with hydrochloric acid.  After saponification with alcoholic potash, there is obtained etio-cholandiol - (3 : 17); (4) 3 - epi - hydroxy-etio-cholanone-17 is treated as in example (3).
Patent GB-936711-A (GB)
Title: Improved process of and apparatus for coating travelling webs
IPC: B05C9/02
Filed: 1962-03-07
Abstract: A travelling web or film 9 is coated by being brought into contact with a guide surface, e.g. the surface of a stationary roll 10, while coating liquid is fed into the pocket 12 formed between the film and the guide surface.  In Fig. 2, the liquid is fed through the stationary roll 10 to a longitudinal slot 11 running across the width of the film.  A similar roll 13 to coat the other side of the film and doctor rollers 18, 19 may also be provided.  Splash pans 20, 21 are connected to a main bath 17, surplus liquid being caught in these pans and bath.  Rolls 10 and 13 may be arranged in a variety of relative positions and a rotatable guide roller may be provided to increase the wrap of the film about a roll 10 or 13, or to ensure that the film enters the doctor rolls from the required direction. In Fig. 7 roll 13 is partially immersed in the bath but the pocket 15 remains above the surface thereof.  The other side of the film is prewetted by roll 10 and coated in the bath.  Where gravity tends to empty the pocket the <PICT:0936711/IV(a)/1> <PICT:0936711/IV(a)/2> film is sprayed with liquid immediately before contacting the guide. A typical film to be treated is one of regenerated cellulose. Coating liquids may be lacquer type moisture-proofing compositions such as nitrocellulose, wax or resin dissolved in a volatile organic solvent such as an ethyl acetate-toluene mixture. Specification 541,555 is referred to.
Patent GB-1513540-A (GB)
Title: Method of monitoring the machining by ion bombardment of a piezoelectric wafer
IPC: H01L41/22
Filed: 1977-03-02
Abstract: 1513540 Monitoring thickness of piezoelectric wafer THOMSON-CSF 2 March 1977 [5 March 1976] 08902/77 Headings G1N and G1U [ Also in Division H1] A method of monitoring the progress of the ion machining of a wafer P of Piezo-electric material for an electro-mechanical resonator comprises associating with the wafer two measuring electrodes 1 connected to a variable-frequency admittance-measuring device M including a variable-frequency A.C. source and a display which displays as a function of frequency the law of variation of one of the parameters, modulus and argument, which characterize the complex relationship between the voltage across the measuring terminals of the device and the current it produces. There is a marked change of this parameter for a given frequency range #f and when this frequency range #f coincides with a desired thickness corresponding to a frequency fo on the display, machining is stopped. It can be arranged that in the machining enclosure there are a reference resonator (PR) of a given thickness, Fig. 2 (not shown) and a resonator P being machined. Measuring electrodes fitted to each resonator connect to a measuring device and when the two parameters displayed coincide, machining is stopped.
Patent GB-908333-A (GB)
Title: Method for the production of substantially protein-free callicrein
IPC: C12N9/64
Filed: 1961-03-10
Abstract: Crude callicrein is substantially freed from protein impurities by adsorbing it from aqueous solution on to a basically substituted cellulose derivative at a pH of from 3 to 10 (preferably 6.0 to 7.5), washing the adsorbate with a buffered (to pH 3.0 to 10) electrolyte solution, the concentration of which is not greater than M/50 until a nearly protein-free filtrate is obtained and thereafter eluting the callicrein from the adsorbate with a buffer solution containing at least 1 gm. of electrolyte per 100 c.cs. of solution.  Specified basically substituted cellulose derivatives are di- and tri-ethyl aminoethyl cellulose (preferred), p-aminobenzyl cellulose and "Ecteola" (a reaction product of epichlorhydrin, triethanolamine and sodium cellulose). Optionally, the crude callicrein may be pre-treated by stirring with or passing through a column of an acid-substituted cellulose derivative to remove basic or neutral inactive impurities.
Patent GB-940521-A (GB)
Title: Laminated material made by dielectric heat and pressure
IPC: B29C65/00
Filed: 1962-03-08
Abstract: 940,521. Ornamenting. GENERAL MOTORS CORPORATION. March 8, 1962 [March 20, 1961], No. 8936/62. Heading B6G. A laminated material having a top layer of thermoplastic sheet with a sheet metal ornament attached is made by applying a thin coating of thermoplastic material adherent to the ornament for example by dipping, assembling between press dies the laminations intended to form said material with the ornament laid on the top layer with said thin coating in contact therewith, and subjecting the whole to dielectric heat and pressure between said dies so as to form the laminated material and fuse the thin coating so that by such fusion it bonds the ornament to the top layer. As shown (Fig. 1) the material comprises a heavy cardboard backing 12, a layer of resilient cotton padding 14 impregnated with vinyl resin or other thermoplastic material, and a top layer of vinyl sheet material 16. Intersecting grooves 18 produced by dielectric embossing secure the layers together and produce a decorative effect. A metallic button 20 at the intersection of the grooves is bonded by dielectric embossing to the top layer. The button 20 (Fig. 2) comprises a stainless steel shell 22 having frusto conical sides 26 with an inwardly turned flange 28 at the lower end. An inner metal shell 30 has its lower surface coated with vinyl resin 32 and is provided with an upturned lip 33 which engages the conical sides 26 of the outer shell 22 so as to be forced downwardly against the flange 28. The button is secured to the panel by a die assembly as shown in Fig. 3. The die is formed with blades 38 corresponding to the grooves 18, and at the intersection of the blades there is a cylindrical die 40 adapted to receive one of the buttons 20. The button is held in place by retractable diffuser blades 44. The layers of vinyl resin sheeting 16, padding 14 and cardboard 12 together with a resilient buffer of silicone rubber 48 are assembled and the flat die 50 brought down tightly against the assembly. A voltage of 1200-4000 volts with a frequency of 1-100 megacycles is applied and the thermoplastic materials fused together. A modified button and also a modification of the process to the application of metal strips are described.
Patent GB-813125-A (GB)
Title: Apparatus for making thin sheets of ceramic material
Inventor: CROWNOVER JOSEPH WIRT
IPC: B28B5/02
Filed: 1956-03-22
Abstract: 813,125. Making thin sheets of barium titanate, &c. ELECTRIC MACHINERY MFG. CO. March 22, 1956, No. 8947/56. Class 87(2). A ceramic slip of, e.g. barium, lead or strontium titanate and a liquid polyvinyl chloride resin, in a hopper 31 is cast into a thin sheet on an endless metal belt 10, without the use of a doctor blade, by inclining upwardly that part of the belt beneath the hopper. The belt is sprayed with a parting agent, e.g. mineral oil, by a nozzle 20, and then heated by radiant heaters 24, 25 to cause a thin layer of the slip to polymerize on the belt. The thickness of the sheet may be controlled by varying the temperature of the belt. The cast sheet is polymerised by electric heaters 46, removed from the belt by a knife 51, cut to form electrical components and sintered. The level of the slip in the hopper is kept constant by supplying slip from a hopper 32. Wipers prevent escape of slip between the belt and the hopper 31. Specifications 773,888 [Group XXXVII] and 803,163 are referred to.
Patent GB-197150-A (GB)
Title: Improvements in and relating to means for fastening corsets
IPC: A41F1/04
Filed: 1922-03-29
Abstract: 197,150. Gamble, S. L. March 29, 1922. Busk fastenings.-In a corset fastening of the type in which one limb of an L-shaped member on one busk engages a tubular slot on the other busk, the slot is formed as a flattened short tube 5 with perforated lugs 6 for riveting to the busk. The fastener may be used in conjunction with the usual stud-and-slot fasteners.
Patent GB-1191851-A (GB)
Title: Expandible Plug for Pipe Line Plugging apparatus
Inventor: COOKE FRANK
IPC: F16L55/136
Filed: 1966-03-01
Abstract: 1,191,851. Pipe stoppers. E. PASS & CO. Ltd. 31 May, 1967 [1 March, 1966], No. 9022/66. Heading F2P. An expansible plug for plugging a pipe P by insertion through two holes H, H<SP>1</SP> which have been drilled in opposite pipe walls using known pipe-embracing and drilling assemblies, comprises an expansible, e.g. axially split, cylinder 12 having cylindrical rubber sleeve facing 15, a pair of opposed axial cylinders 19, 20, each having outer walls of truncated conical form, slidably mounted for movement in opposite directions on spaced pistons 17 and 18 at the end of an hydraulic ram 11, hydraulic fluid supply passages 26-33 for introducing fluid to said cylinders either side of the pistons, and a plurality of angularly spaced members 34 disposed between said cylinders and the interior wall of the cylinder each member having at least three edges which contact the outer walls of the said cylinders and the interior wall of the said cylinder. In use, the ram lowers the plug to lie transversely of the pipe, the lower flange of flanges 13 and 14 of the expansible cylinder seating on a shelf S of pipe-line embracing assembly A. Hydraulic fluid is supplied through ports 30, 31 to cause the cylinders to move towards one another and thus expand the expansible cylinder thereby plugging the pipe. The cylinders 19, 20 may be mounted with their wider ends adjacent, the shape of the members 34 being suitably modified so that expansion takes place when the cylinders are moved apart.
Patent GB-300864-A (GB)
Title: Three-legged support for machine guns
IPC: F41A25/12
Filed: 1928-03-26
Abstract: 300,864. Haubroe, W. C. L. March 26, 1928. Tripod mounts for machine guns.- A three-legged support for a recoiling machine gun comprises a frame 1 pivotally carrying a front leg 8 and rear legs 15, the muzzle end of the gun moving on a slide 4 at the front of the frame, and the stock being supported by an adjustable, post 21 on a recoiling carriage 22 sliding on a support 20 at the rear of the frame. Further, the slide 4 carries the vertical training pivot 3, Fig. 4, which is mounted in a bearing block 34 rotatable about a horizontal axis in the frame to set the pivot vertical whether the frame 1 is in the recumbent position shown or in an upright position. Still further, the support 20 is movable during training between stops 18, 19 on rear arcuate guides 14, 14<1> on the frame. The support 20 is fitted with recoil and run-out springs for the carriage 22 and also with a hand grip 32 having a trigger 33 connected to the gun trigger by a Bowden wire 38. The front leg is connected to the frame 1 by a strut 9 having a spring 13 for automatically folding the leg against the frame when a clamp 11 is released. The rear legs are also foldable against the frame and the whole stand is transported by a strap 40. Fig. 4 also shows a spring-controlled knob 44 for adjusting the pivot 3, the knob being pulled endwise against the action of a spring 59 and rotated to cause the engagement of projections 45 either with the pair of notches 46 or with a second pair of notches suitable for the upright position of the frame 1.