baber/WOPTO huggingface dataset:
Patent GB-1314988-A (GB)
Title: Control system for a lock stitch sewing machine
IPC: D05B69/28
Filed: 1970-08-11
Abstract: 1314988 Starting, stopping, feeding work in sewing machines BROTHER KOGYO KK 11  Aug 1970 [12 Aug 1969 10 Sept 1969 23 July 1970 24 July 1970 27 July 1970] 38627/70 Heading D1G A sewing machine, having means for feeding the work, for cutting the thread, and for driving the machine and stopping it with the needle in a selected position, has control means responsive to the operation of a pedal to reverse the feed to oversew the stitch seam. The mechanism disclosed has fluid operated devices and electrically operated devices which cause, when the pedal (134, Figs. 1 and 7 not shown) is rocked forwardly, the presser foot (25, Fig. 2 not shown) to be lowered and the machine driven at high speed with the feed mechanism operating first in reverse and then forward, to oversew the start of the seam. After a desired seam length has been sewn rocking the pedal in the opposition direction serves to reverse the feed direction to oversew the seam end before feeding again in the normal direction, the machine then being driven at a slow speed to a needle lowered position where the threads are engaged by the thread cutter and severed, the needle then rising to an upper position where the machine is braked. Alternatively, the machine may be stopped with the needle lowered. Machine driving, starting and stopping. The machine is driven at high speed by a motor 41 or at slow speed by a clutch brake motor (70, Fig. 6 not shown) which drives a worm engaging the wormwheel 55. A shaft 58 carrying the drive pulley 62 and a clutch plate 47 is slidable in the casing portion 57, by a lever device 100 connected to the pedal, to engage the plate 47 with either the slowly rotating wormwheel 55 or the motor flywheel 47. The device 100 comprises a bent lever 101 pivoted at 105 to the motor frame and provided with an extension 111 pivoted thereto at 112 carrying a switch 53 and connected to the pedal. Pivoted at 105 is a further lever 122 engaging an operating groove 59 for the motor clutch mechanism and connected at its other end to a fluid pressure operated piston and cylinder device 130, 129 which permits the levers 101 and 122 to be misaligned to maintain the clutch plate 60 against the flywheel 47 when the pedal is released during the seaming sequence. A modified form of the pedal linkage is also described (Figs. 14A, B not shown). Feed, reversing and regulating: Fig. 11. The feed dog 164 is mounted on a feed bar 163 receiving feed lift and advance movements from shafts 165 and 162 respectively, the latter being driven from a cam 161 on the machine arm shaft through feed adjusting means 167 having a dial 167a. A feed reversing shaft 169 connected to the means 167 by arm 170 may be operated manually by a lever 168 or, in the controlled sewing of the seam, by a fluid pressure cylinder 171 coupled to an arm 175 on the shaft, a solenoid actuated control valve 177 for the cylinder being controlled by electronic circuitry (Figs. 12, 13 not shown) to provide the seam oversewing at the beginning and end of the stitching.
Patent GB-386732-A (GB)
Abstract: 386,732. Magnets. HEINLEIN, C. H., 7, Clarkson Street, and DARWINS, Ltd., Fitzwilliam Works, both in Sheffield. Oct. 13, 1931, No. 29443. [Class 35.] A permanent magnet for moving coil instruments of the kind having an annular air gap and consisting of an assemblage of permanent magnets arranged around a centre core, comprises a carrier or holder within which the centre core and magnets are held and fluxcarrying end members fastened to the carrier so as to clamp the magnets longitudinally and having plane surfaces making contact with the ends only of the magnets, one of the members having a centre hole forming the outer wall of the annular air gap. Fig. 11 shows one form of construction comprising a cylindrical carrier 1 having a central hole 6 to accommodate a soft iron centre core 3 surrounded by a number of cylindrical holes 7 which receive the bar magnets 2. Soft iron plates 4, 5 are secured to the top and bottom ends respectively of the carrier, the plate 4 having a central hole which forms the annular air gap 8 with the projection 3a on the core 3, the symmetry of the gap being maintained by a brass &c. ring 10. The plate 4, ring 10 and projection 3a may be assembled as a complete unit. According to the modified construction shown in Fig. 23, the carrier is of reel-like form comprising rectangular endplates 13, 14 connected by a tube 15, soft iron plates 10a, 11a being secured to the endplates as shown so as to clamp the magnets 12. The reel may be made in one piece of nonmagnetic material, or assembled from separate top and bottom plates and tube, in which case the tube may be made of soft iron so as to assist in increasing the magnetic conductivity of the centre core 16. The Provisional Specification states that the magnet may be used in moving coil loud-speakers, telephone receivers, vibration detectors of telephonic type and sound and other measuring devices.
Patent GB-942125-A (GB)
Title: Process for the electrolytic production of alkali metal phosphates
IPC: C25B1/14
Filed: 1962-10-12
Abstract: Alkali metal phosphates are made by suspending e.g. NaCl in phosphoric acid of concentration 50 to 70% by weight and electrolyzing preferably at 40 to 100  DEG C., and C.D. 5 to 50 A.S.Dm.  The ratio of P2O5/Me2O should be about 1 : 1.  After electrolysis the product is neutralized with alkali hydroxide or carbonate, cooled, and crystallized.  Impure NaCl e.g. containing Na2SO4, and alkaline earth metals, can be used.  If the hydrogen and chlorine produced are to be collected separately, a diaphragm cell may be used.  Both NaH2PO4 and Na2HPO4 are formed at individual stages.  Specification 854,145 is referred to.
Patent GB-990939-A (GB)
Title: Portable breathing apparatus
IPC: A61M16/06
Filed: 1962-10-12
Abstract: 990,939. Artificial respiration apparatus. J. A. ARECHETA MOTA. Oct. 12, 1962 [Oct. 24, 1961], No. 38748/62. Heading A5T. A resuscitator, which either includes a face mask or may be mounted on a face mask or endotracheal tube, comprises two bellows 1, 2 each having an inlet and an outlet valve 9, 10, 15, 16 and operable together, a stroke in one direction causing one bellows to fill with air from the mask or endotracheal tube and the other bellows to fill with air from outside the apparatus and a stroke in the other direction causing air to pass from the other bellows to the mask or endotracheal tube and from the one bellows to atmosphere. The bellows 1, 2 are concentric and have common upper and lower end plates 3, 4. An inner chamber 26 is formed by the inner bellows 1 and communicates with the atmosphere through one-way inlet valves 9, and through one-way outlet valves 15 with a chamber defined between the lower end plate 4 and a further end plate 18 connected with the mask. An outer chamber 27 formed between the bellows communicates with the chamber between the plates 4, 18 through oneway inlet valves 16 and with the atmosphere through one-way outlet valves 10. The valves are protected by perforate metal screens 17. An air inlet tube 14, 12 mounted on the upper end plate serves as a handle for collapsing and expanding the bellows. The valves mounted in the lower end plate are spring-loaded to open under a pressure differential of 10 cms. water.
Patent GB-933186-A (GB)
Title: Diamond truing device for helical surface grinding machines
IPC: B24B53/04
Filed: 1959-11-16
Abstract: 933,186. Truing grinding wheels. P. DURAND. Nov. 16, 1959 [Nov. 18, 1958], No 38757/58. Class 60. A device for truing cylindroconical grinding wheels for grinding helical surfaces comprises a diamond 2 mounted on a first spindle 1 for truing the conical surface, another diamond 38 mounted on a second spindle 28 for truing the annular face of the wheel, means for moving the first spindle to control the operative stroke of the diamond 2, to disengage it automatically from the wheel on completion of this stroke, to hold it clear during the return stroke, and to bring it to its original position, and means coupled to the first means for moving the second spindle 28 simultaneously with the first in a uniform to-and-fro radial stroke. The spindle 1 is traversed and quick-returned across the conical face of the wheel on guides 8 by a cam 10 acting against a spring 15. A spring 5 maintains contact between a roller 18 on a sleeve 4 around the spindle and a profiled template 16 during the cutting stroke of the diamond but the spindle carrier 7 is raised further towards the end of its travel by a toothed sector 19 of a lever 20 which contacts an adjustable stop 23. This stop also trips a bell-crank lever 21 to engage a stop carried by the other arm 22 with the underside of a projection 24, Fig. 2, on the sleeve 4, whereby the spindle 1 and diamond 2 is held out of contact with the conical surface of the wheel during the return stroke of the diamond carrier, an adjustable stop 25, Fig. 3, tripping the lever 21, 22 at the end of this stroke to allow the spindle 1 to return to its truing position. The cam 10 is motor-driven through spur gears and a worm gear 13, the spindle 28 of the second diamond 38 being reciprocated by the same motor which drives a cam 28a through a worm gear 36, 39, Fig. 2, to lift the spindle 28 against a spring 31. The housing 9 of the spindle 1 is supported by arcuate guides 27 to permit of angular adjustment on a bracket 26 which may itself be micrometrically adjusted vertically in relation to the wheel axis. Adjusting screws 6 and 37, Fig. 1, provide for the initial setting of the diamond holders 3 and 33; each diamond is detachably mounted in its holder.
Patent GB-1148886-A (GB)
Title: Variable ratio transmission unit
Inventor: PETTY JOHN WILLIAM LEDWARD
IPC: F16H15/12
Filed: 1965-09-10
Abstract: 1,148,886. Change-speed gear. NATIONAL RESEARCH DEVELOPMENT CORP. 26 July, 1966 [10 Sept., 1965], No. 38860/65. Heading F2D. In a steplessly-variable speed friction-gear in which coaxial rollers 8, 9 secured respectively to aligned driving and driven shafts 6, 7 engage idler-discs 21, 22 on a carrier 14, axially-adjustable by a screwed rod to vary the ratio, the discs 21, 22 are supported by spherical bearing seatings 23, 24, on bushes 19, 20, the centres 25, 26 of each bearing lying in the plane of the working face of the disc supported by that bearing, permitting limited tilting of the discs whilst maintaining the system in equilibrium, e.g. the rotational axis of each disc intersects at a common point on the axis of shafts 6, 7 (Fig. 4, not shown) preventing scrubbing of the rollers against the discs in any tilted position thereof. The discs 21, 22 are pre-loaded against the rollers 8, 9 by dished springs 30 sandwiched between the bushes 19, 20 and nuts and washers 28, 29 on a central screwed rod 27.
Patent GB-347590-A (GB)
Title: Improvements in or relating to processes and apparatus for water softening
IPC: C02F5/02
Filed: 1929-12-28
Abstract: In a process for reducing the hardness of water, the precipitation and settling of the substances which impart hardness to the water is accelerated by bringing the water, immediately after addition of known precipitating agents, into contact with a contact substance as defined below, then removing the water from contact with the substance before any material amount of precipitate has been deposited, and leading it into settling tanks where the bulk of the precipitate is deposited.  The contact substances employed are either (1) a carrier substance firmly coated with precipitated carbonate, the carrier substance being any solid which is insoluble in water, such as gravel or granite, and which is in the form of pieces or grains, or (2) marble, limestone, dolomite or a like carbonate insoluble in water.  The contact substance may be placed in a container mounted between the measuring apparatus and the settling tank of an ordinary water-softening plant.ALSO:In a process for reducing the hardness of water, the precipitation and settling of the substances which impart hardness to the water are accelerated by bringing the water, immediately after addition of known precipitating agents, into contact with a contact substance as defined below, then removing the water from contact with the substance before any material amount of precipitate has been deposited, and leading it into settling tanks where the bulk of the precipitate is deposited. The contact substances employed are either (1) a carrier substance firmly coated with precipitated carbonate, the carrier substance being any solid which is insoluble in water, such as gravel or granite, and which is in the form of pieces or grains, or (2) marble, limestone, dolomite or a like carbonate insoluble in water.  The contact substance may be placed in a container mounted between the measuring apparatus and the settling tank of an ordinary water-softening plant.
Patent GB-1444727-A (GB)
Title: Electrostatic recording devices for facsimile systems and the like
IPC: H04N1/032
Filed: 1973-08-22
Abstract: 1444727 Electrostatic recording device NIPPON ELECTRIC CO Ltd 22 Aug 1973 [22 Aug 1972] 39784/73 Heading H4F [Also in Division H1] Electrostatic recording device for use in a facsimile receiver comprises a hermetically sealed gas filled envelope 100 containing a linear array of scanning electrodes 111-117 which with a common electrode 140 and by applying positive start pulse 171 and three-phase negative scan pulses 172-174 as shown, a gas discharge is shifted sequentially along the array. In addition the envelope contains voltage pick-up electrodes 121-127 disposed in one-to-one correspondence with the scanning electrodes which pick-up the potential developed in the discharge space by the ionic conduction one after another to provide voltages sequentially to recording stylus electrodes 131-137 past which electrostatic recording paper 180 is moved over a back electrode 190. The facsimile video signal to be recorded is applied through input terminal 165 and amplifier 145 to the back electrode 190, and also to the control input terminal 144 of a variable-resistant element 142, e.g. a transistor, connected between a D.C. power supply 143 and a current limiting resistor 141, which resistor is connected to the common electrode 140. The resistance value of element 142 is thus controlled in response to the magnitude of the video signal. Shunt resistor 151- 157 reduce the adverse effects of stray capacitances which appear between the recording electrodes and ground. The control of the variable-resistant element 142 in response to the facsimile signal reduces the sputtering in the device and thus increases its life span, this is because a facsimile signal has a great deal of redundancy due to the proportion of black signals "1" being considerably less than white signals "0". Thus a logic "0" facsimile signal is arranged to turn off the transistor (301, Fig. 3, not shown) to thereby limit the discharge current so that a mere scanning operation is effected, whereas a logic "1" facsimile signal increases the discharge current so that a recording output voltage is fed to the recording stylus electrode. The tips of the pick-up electrodes are located within recesses in the scanning electrodes, the common electrode being located above the scanning electrodes but spaced from their recessed portions (Fig. 2, not shown). An I.C. type construction of the device is described with reference to Fig. 4, not shown.
Patent GB-1165528-A (GB)
Title: Improvements in Telephone Cables
Inventor: INGS ERIC HARRY
IPC: H01B7/282
Filed: 1968-08-21
Abstract: 1,165,528. Water proof cables. STANDARD TELEPHONES & CABLES Ltd. 21 Aug., 1968, No. 39926/68. Heading H1A. To waterproof individual cores 1 of a multicore cable and to prevent axial flow of water when a waterproof sheath is damaged, a laminate 2 comprising a plastics layer 3, preferably polyethylene, and a paper layer 4 is wrapped around each core 1 with the paper 4 innermost and the outer edge sealed at 5, and interstices in the cable are filled with a non-hardening, insulating water-impervious jelly, preferably petroleum jelly. The edge is sealed at 5 by adhesive or the application of heat.
Patent GB-964192-A (GB)
Title: Liquid supply arrangement for swimming and like pools
Inventor: ROSS DAVID SIMON
IPC: E04H4/12
Filed: 1962-06-22
Abstract: 964,192. Swimming baths. AMCODYNE CORPORATION. June 22, 1962, No. 39929/63. Divided out of 964,191. Heading A4N. Filtered and chlorinated water is returned to a swimming bath by means of a perforated stainless steel pipe 134 supported by brackets 136 welded to steel side panels. The pipe 134 may extend around the entire periphery of the bath. Each panel 46 carries a section of the pipe 134 and these are joined, after erection of the panels, by flexible tubular coupling members.
Patent GB-1034005-A (GB)
Title: Improvements in or relating to game balls
IPC: A63B39/00
Filed: 1964-10-01
Abstract: 1,034,005. Games balls. R. C. GUTKNECHT. Oct. 1, 1964 [April 6, 1964], No. 40001/64. Heading A6D. A moulded games ball is formed with integral ribs 12a, 13a, 14a on its surface to simulate seams, the surface of the ball intermediate the ribs being pebbles, as at 11, and being indented slightly in the vicinity of the ribs so that the latter do not protrude outwardly of the general surface of the ball.
Patent GB-1485484-A (GB)
Title: Compositions for use in forming a doped oxide film
IPC: H01L21/225
Filed: 1974-09-13
Abstract: 1485484 Semi-conductor devices TEXAS INSTRUMENTS Inc 13 Sept 1974 [19 Sept 1973] 40047/74 Heading H1K A conductivity type determining dopant is diffused into a semi-conductive wafer by applying to a surface of the wafer a composition comprising tetraethyl orthosilicate, acetic acid or acetic anhydride, and the dopant in a solvent, which composition has been refluxed to reach equilibrium, and heating the coated substrate to a temperature at which a silicon oxide layer containing the dopant is formed, and then heating to a diffusion temperature. The equilibrium mixture is stated to include ethyl acetate, diethoxysilicondiacetate and triethoxysilicon acetate. The solvent is preferably ethylalcohol. The composition may be applied by spinning, spraying or dipping. For a silicon wafer the dopant may be B, P, As or Au, the latter for lifetime control, included in the composition as boron oxide, orthophosphorio acid or P 2 O 5 , orthoarsenic acid or gold chloride respectively. For a gallium arsenide wafer, zinc may be included as zinc chloride.
Patent GB-994701-A (GB)
Title: Improvements in or relating to ceiling suspension systems
IPC: E04B9/12
Filed: 1961-11-09
Abstract: 994,701. Suspended ceilings. M. O. HEMMING. Nov. 9, 1961 [Aug. 31, 1961], No. 40110/61. Heading E1V. In a ceiling suspension system, inverted T-section metal members are secured together by metal brackets 5 which clip over one member at 19 and receive the other member 25 on a projecting arm. The brackets are each provided with a flange 17 and a pawl 13 which fit into grooves adjacent the lower and upper edges of the web of the first member, and a leaf 22 having a projection 23 to engage one of a series of holes 24. The second member 25 is secured by bolts or by crimping it into slots 7 in the projecting bracket arm. Ceiling tiles are attached to the coplanor underfaces of the T-sectioned members.
Patent GB-401135-A (GB)
Abstract: 401,135. Vaporized - - oil burners. ESCAFFRE, J., 23, Rue EugÛne Caron, Courbevoie, Seine, and FREMONT, H., 2, Rue Villaret-de-Joyeuse, Paris, both in France. Jan. 23, 1933, No. 2092. Convention date, Jan. 23, 1932. [Class 75 (i).] Atmospheric vapour burners; porous block burners ; vaporizing-apparatus.-A heavy-oil burner for use in stoves normally using coal as fuel comprises a central constant level chamber 6, a vaporizing chamber 3, containing a catalyst such as copper or ferro-nickel turnings or spongy platinum, arranged concentrically around the chamber 6, and connected thereto by radial pipes 6b, the space between the two chambers acting as a passage for air for combustion, and means for regulating the air passing through the passage. The chamber 6 contains a float 7 which controls a valve 9 between the chamber 6 and a chamber 11 to which fuel is supplied through a filter 13 by means of the pipes 12a, 14. A cylindrical wall 19, supported by means of a circular collar 19b with apertures 19a, divides the air passage between the two chambers 3, 6 into two parts 20, 21. The outer passage 21 has a tapering cross section owing to the shape of the inner wall 2 of the chamber 3, and provides the main air supply to mix with the vapour passing through the apertures 5 in the top of the chamber 3. The passage for the mixture is somewhat constricted by the perforated or unperforated ring 27 and the projecting part 21a of the cover 22. Air passing up the inner passage 20 mixes with any vapour escaping from the float chamber, and passes out through central apertures in the cover 22 and the hood 26. Apertured plates 16, 17 form a hit-and-miss device controlling the flow of air. This may be operated automatically.
Patent GB-1362428-A (GB)
Title: Cross-linkes shaped structures and process for the production thereof
IPC: C08F8/00
Filed: 1971-08-26
Abstract: 1362428 Cross-linked copolymers DYNAMIT NOBEL AG 26 Aug 1971 [19 Sept 1970] 40199/71 Heading C3P Shaped structures are obtained by crosslinking with an acid catalyst (thereby forming siloxane linkages) a copolymer containing 30- 99À9% by wt. of vinyl chloride units and 0À1- 20% by wt. of units derived from a silane of the formula R x SiR 1 R 2 R 3  in which R x  is vinyl or allyl; R 1  is C 1 -C 18  alkoxy, C 6 -C 12  aryloxy or C 7 -C 24  aralkoxy and R 2  and R 3  are as R 1  or a C 1 -C 18  alkyl, C 6 -C 12  aryl or C 7 -C 24  aralkyl, the structure being formed before or during cross-linking. The acid may be active at ambient temperature or only on heating or may be produced in situ as hydrogen chloride from the copolymer. Preferably a solvent, e.g. tetrahydrofuran or cyclohexanone is present, and a third monomer may be present in the polymer. The structure may be three dimensional or a film or a fibre.  Reference has been directed by the Comptroller to Specification 1,218,408.