baber/WOPTO huggingface dataset:
Patent GB-1191704-A (GB)
Title: Collect Chuck
IPC: B23B31/20
Filed: 1967-06-29
Abstract: 1,191,704. Chucks. LANDIS TOOL CO. 29 June, 1967 [29 June, 1966], No. 30058/67. Heading B3B. A collet chuck comprises a tubular body 13, a work-gripping member 22 having front and rear jaws 31, 28, a removable front retainer 32 having a conical recess for engaging the front jaws, an axially movable actuating member 16 having a conical recess for engaging the rear jaws, and means e.g. guide pins 38 for releasably securing the work-gripping member 22 to the actuating member, removal of the retainer 32 providing simple access to the guide pins 38. Heads 39 en the guide pins and stop members 40 on the front retainer 32 ensure the release of the jaws 31, 28 from the front and rear conical recesses 33, 29 respectively. Co-operating flats on the stop members 40 and jaws 31 allow for the retainers 32 to be turned and then withdrawn over the jaws 31. A workpiece positioning member 18, axially adjustable within a chuck operating sleeve 15 is positioned by a plunger 20. The work gripping member may be in two parts 23, 24 as shown, bolted together at flanged portions 25, 26 and may have sleeve members 30, 46 in contact with the workpiece or may alternatively (Fig. 7, not shown) be in one piece and without sleeve members. As shown the chuck may be used for grinding the head 47 of a valve 44 to a desired contour by means of a grinding wheel 48.
Patent GB-812283-A (GB)
Title: Improvements relating to textile twisting machines
Inventor: WATSON WILLIAM HAROLD
IPC: D01H1/00
Filed: 1955-10-21
Abstract: 812,283. Twisting yarns &c. T.M.M. (RESEARCH) Ltd. Oct. 10, 1956 [Oct. 21, 1955], No. 30202/55. Class 120(2) A yarn twisting machine has rotatable delivery spindles 12 with flyers 15 and axial bores through which yarns are led to ring twisting units 20, 23 at which two or more such yarns are twisted together. From delivery packages 13 yarns are brought together at a guide 17, then pass between rollers 16 rotatable at adjustable speeds. It is stated that drawing the yarns through the bores of spindles 12 assists in the prevention of snarling. Reference has been directed by the Comptroller to Specification 788.242.
Patent GB-510941-A (GB)
Title: Stabilising arrangement for valve amplifying apparatus
IPC: H03J7/14
Filed: 1937-11-04
Abstract: 510,941. Inductances. KRAMOLIN, L. L. DE. Nov. 4, 1937, No. 30265. Convention date, Nov. 5, 1936. [Class 38 (ii)] [Also in Group XL] The Specification as open to inspection under Sect. 91 comprises a low permeability core 3 arranged between the poles N, S, of a control magnet 1 and carrying a tuning inductance 4, the core being of equal or greater length in the direction between the pole-pieces relative to its width in a direction transverse to the pole-pieces. To provide a greater area of contact between the core 3 and the pole-pieces the cooperating surfaces may be grooved as shown in dotted lines, and the :core may be narrowed in the middle as shown. This subject-matter does not appear in the Specification as accepted, and forms the subject-matter of Specification 511,031.
Patent GB-1305237-A (GB)
IPC: H05B6/34
Filed: 1970-06-23
Abstract: 1305237 Electromagnetic stirring ALLMANNA SVENSKA ELEKTRISKA AB 23 June 1970 [24 June 1969] 30297/70 Heading BIC In an electric furnace for non-ferrous metals the furnace bottom is supported by flat stirring coils 13 energized by a polyphase cement and themselves supported by the furnace base 15. As shown the coils are embedded in a ceramic compound 12 and have an iron core 15. In a modification (see Figs. 2 and 3, not shown) the core has poles (17) projecting upwards between the coils; the furnace is of ceramic compound with a sheet of stainless steel, the other walls being of carbon steel. The stirring currrent frequency may be 0.1-10 cycles/sec.
Patent GB-1271582-A (GB)
Title: Metal frame racquet
Inventor: MELNICK SAMUEL HERBERT
IPC: A63B49/12
Filed: 1969-06-16
Abstract: 1,271,582. Metal frames for rackets. MIDLAND MERCHANDISE CORP. 16 June, 1969 [20 June, 1968], No. 30301/69. Heading A6D. A racquet frame made of metal e.g. aluminium, by casting, consists of a circular or elliptical portion having apertures therein for attaching strings thereto, and end portions to receive a handle. The frame may be a unitary or multi-part casting and in the latter case means for connecting the frame parts are cast integrally with the frame parts and consist preferably of overlapping apertured tab portions. As shown a racket 110, consists of an elliptical portion 112, a striking area 113, spaced end portions 114 and 115 for connecting the handle, apertures 120 for receiving the strings. Further the racket shown consists of two separate halves 111a and 111b joined by rivets 135, 136, and 137 through overlapping tab portions 138, 139 and 140 (Fig. 6). To improve the rigidity of the handle portion 116, a cast handle 129 in embracing relationship with portions 114 and 115 may be provided. Alternatively the handle may be a tubular plastics housing, the interior of which may be filled with a suitable foamed plastics.
Patent GB-392831-A (GB)
Title: Improvements relating to collapsible chairs
IPC: A47C4/24
Filed: 1932-10-29
Abstract: 392,831. Chairs. ALEXANDER, A. G., Eastfield, Rutherglen, Lanarkshire, and MILLER, W. S., 47, Market Street, Glasgow. Oct. 29, 1932, No. 30388. [Class 52 (ii).] In an X-frame folding chair, each side of the back-rest frame 4 is pivotally connected near its lower end to one member 2 of the X-frame and at its lower end is connected by a 6 link to the other member 1 of the X-frame, the arrangement being such that (a) in the unfolded position, Fig. 1, of the chair, the pivoted connection 61 of the frame 4 with the link 6 forms a stop abutting against the member 2, and (b) in the folded position, Fig. 3, the relative position of the pivots 3, 6<1>, 6<2> is such that the frame 4 is locked against movement in relation to the X-frame until a spreading movement of the members 1, 2 of the X-frame is manually initiated. The members 1, 2 are conveniently of U-shape and the initiation of the spreading movement may be facilitated by the provision of finger-grips 7, 8 on the cross-bars 9, 10 of these U-members. The seat member 12 is hinged to a rod 13 at the upper end of the member 2 and rests, when in use, on a rod 14 at the upper end of the member 1. The member 1 is braced by a diagonal stay.
Patent GB-262761-A (GB)
Title: Improvements in or relating to the process of and apparatus for cleaning plant fibres
IPC: D01B1/10
Filed: 1926-12-02
Abstract: 262,761. Krupp Grusonwerk Akt.- Ges., F. Dec. 12, 1925, [Convention date]. Scutching-apparatus.-Decorticated materials are fed by a conveyer 1 round discs 2, 3, Fig. 1, in staggered relationship, and are treated on the under sides by drums 4, 5, Fig. 3, the materials lying over the tops of the drums, and then on the upper sides by drums 6, 7, Fig. 4, co-operating with a shoe. The grip on the material is shifted between the pairs of drums. The drums mav be of different diameters and the drums of each pair may be staggered so that the ends are treated successively. Specification 231,352 is referred to.
Patent GB-703347-A (GB)
Title: Improvements in or relating to mail or like handling devices
Inventor: JURY ROBERT JOHN
IPC: B07C3/06
Filed: 1949-11-29
Abstract: 703,347. Sorting letters. POSTMASTER GENERAL. April 13, 1951 [Nov. 29, 1949], No. 30630/49. Class 78 (1) [Also in Group XXXV] An electromagnetic device to operate a machine for sorting &c. postal letters, has a reciprocating armature (plunger or pivoted type) which is alternately attracted in sequence by two coils against the action of a spring or springs through crank arrangements. Figs. 1, 2 show a lever armature 5 having soft iron parts 9 which project into spaces 8 of the coils 4. The lever 5 rocks about an axis A, when the coils 4 are alternately energized. The free end of the lever 5 is formed into an elongated loop 11 adapted to engage an outer race of a beariiig 12 which is carried by a crank limb 14 of spindle 15. The same limb 14 carries two other bearings 16, 22 respectively connected to a restraining spring 18 and to letter diverter vanes 26. The spring 18 is normally in a slight tension when the linkage of which it forms part is in the neutral position, Fig. 2. Because of the crank arrangements and the positioning of the spring 18, the restraining effect of the latter reaches a maximum as the limit of approach of the armature projection 9 to the core 7 is reached. Thus the diverter vanes 26 operate without shock. Figs. 7, 8 show an arrangement wherein a tubular armature 32 slides in guides 37 so as to actuate diverter vanes 42 through a crank 'arrangement in opposition to a spring 51 having one end mounted at a limb of another crank best seen in Fig. 8. The pivoted armature arrangement of Figs. 1, 2 is modified by including a stopping device 59 to limit the movements of a lever 58 and a pair of opposed springs 55, 56 secured at their inner ends to a lever 58 as in Figs. 14, 15 (not shown). The diverter vane shaft is stopped in the fully operated or rest position until the co-operating coil is de-energized and the other energized. The arrangement shown in Figs. 7, 8 is further modified so as to include a pair of opposed springs 60, 61, Fig. 19 (not shown), instead of a single spring 51 and a stopping device 67, 68, Fig. 20 (not shown). Specification 675,556; [Group XL (b)], is referred to.
Patent GB-216456-A (GB)
Title: Improvements in water-gas generators
IPC: C10J3/00
Filed: 1923-12-05
Abstract: 216,456. Cerasoli, A. Dec. 5, 1923. Producers.-In a water-gas producer in which the fuel chamber a is surrounded by refractory material f heated by the blow gas and subsequently employed for superheating the steam, the latter is admitted preferably at different levels through pipes k, and enters the fuel bed through ports h at different levels. During the blow, air is supplied by a pipe m, and the blow gases pass through the ports h and refractory material to the outlet l, which is closed when steam is admitted during the run, the water-gas escaping through pipe d closed during the blow. The fuel in the retort b is heated externally by the blow gases, and internally by the hot watergas.
Patent GB-346732-A (GB)
Title: Improvements in or relating to aileron controls for aeroplanes
IPC: B64C13/00
Filed: 1929-10-10
Abstract: 346,732. Aeroplane controls. SOC. ITALIANA E. BREDA, 9, Via Bordoni, Milan, Italy. Oct. 10, 1929, No. 30780. Convention date, Oct. 11, 1928. Void [Published under Sect. 91 of the Acts]. [Class 4.] The two ailerons of an aeroplane are connected independently and adjustably to the control column so as to allow variations at will in the amplitude and direction of the displacements of one aileron with respect to the other as well as their position relatively to the mid-position of the control column. The two ailerons in the arrangement shown are controlled by separate cable circuits passed around two pulleys 2, 21 having arms 3, 3<1> connected by rods 4, 4<1> to a plate 7 on the control column 1. The connections of the rods 4, 4<1> to the plate 7 may be adjusted from coincidence at a central position 6‹ to various degrees of separation, for example by a left- and right-hand screwed rod. Alternatively the positions of the pulleys 2, 2<1> may be varied.
Patent GB-840357-A (GB)
Title: Dyeing process and materials for use therein
Inventor: KENNEDY JOHN GEORGE
IPC: D06P1/12
Filed: 1957-10-02
Abstract: A non-oiling aqueous dispersion or suspension of an aromatic amine or a salt thereof, for use in forming azo dyes on the fibre by diazotisation and coupling, is prepared by dissolving the amine or salt in a water-miscible solvent and adding the solution so-formed to an aqueous solution of an anionic dispersing agent. Specified solvents are methanol, ethanol, isopropanol, lower aldehydes and ketones, esters, and mixtures thereof.  Specified amines are dianisidine, 4-chloro-o-toluidine, 4-chloro-o-anisidine and o-amino-azotoluene.  Specified dispersing agents are sodium oleyl p-anisidine sulphonate and oleyl sodium sulphate.  A coupling component, e.g., beta-naphthol, phloroglucinol or beta-oxynaphthoic acid, may be dissolved in the solvent along with the amine.  The solution of the dispersing agent is preferably buffered with borax or with acetic acid-sodium acetate, and is held at 20 DEG -80 DEG C during addition of the amine solution.
Patent GB-385067-A (GB)
Title: An improved method of producing firmly adherent galvanic deposits on aluminium and its alloys
IPC: C25D11/08
Filed: 1931-11-06
Abstract: 385,067. Electroplating. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Nov. 6, 1931, No. 30791. Convention date, Nov. 6, 1930. [Class 41.] Aluminium oran alloy thereof is prepared for plating with cadmium, nickel, copper or other metal by first forming an oxide film thereon by anodic action and then reducing this by cathodic treatment in a " degreasing " bath containing metallic compounds whereby an intermediate layer of copper, brass or other metal is deposited. The first bath may be of 30-40 per cent chromic acid, containing some sulphuric acid, 20-60 volts being used. The " degreasing " bath should contain a saponifying agent and should produce a plentiful supply of hydrogen at the cathode. It may consist of sodium carbonate and caustic soda together with a double cyanide of copper, zinc or other metal. The cathodic treatment may be at 5-6 volts.
Patent GB-506072-A (GB)
Title: Improved method of applying carbon layers in television tubes
IPC: H01J29/88
Filed: 1938-09-30
Abstract: 506,072. Cathode-ray tubes. TRIGGS, W. W. (Riedel-E. de Haen Akt.-Ges., J. D.) Sept. 30, 1938, No. 30824/37. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 20, 1938.] [Class 39 (i)] The coating on the interior parts of television tubes consists of colloidal carbon solution comprising inorganic binding agents such as sodium or potassium Water glass, boric acid and borates, aluminium phosphate, enamels &c., and organic protective colloids to the extent of not more than 1 per cent.
Patent GB-816621-A (GB)
Title: Improvements in or relating to high frequency heating equipment
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05B6/04
Filed: 1956-10-10
Abstract: 816,621. High frequency heating. RADIO HEATERS Ltd. Nov. 13, 1957 [Oct. 10, 1956], No. 30894/56. Class 39(3) In high frequency heating apparatus of the kind in which cooling water is circulated through coils, or through or around other components, condensation on the external surface of the water cooled components is reduced by stopping the circulation of the water through the apparatus when the high frequency power is switched off. An electromagnetically operated water valve in the circulation path of the primary and secondary coils of an H.T. transformer, has a coil A, and energization of a contactor coil B causes contacts in the H.T. circuit (not shown) to be closed. To bring the apparatus into operation, an "on" button 2 is pressed to complete a circuit through contacts D<SP>1</SP> of a hold-out relay D which prevents chattering of the contacts of an overload trip 6, through the contacts C<SP>1</SP> associated with a surgelimiting contactor coil C, and through the coils A, B. Energization of the water valve coil A allows the cooling water to flow, and the high frequency generator is energized by energization of the contactor coil B. Contacts B<SP>1</SP>, B<SP>2</SP> are closed and current then flows through the surgelimiting contactor coil C which is slow to operate, and after an interval, a surgelimiting resistor in the H.T. circuit is shortcircuited; the opening of contacts C<SP>1</SP> on energization of the coil C has no effect since contacts A<SP>1</SP> have already been closed. The apparatus continues to operate, but if the trip contacts 6 or the water valve contacts A<SP>1</SP> are opened, the coils A, B become de-energized so that H.T. will be removed from the generator and the flow of cooling water will be stopped. A water pressure switch (not shown) and an "off" button 4 are included in the circuit, and separate water valves may be provided for the primary and secondary coils.
Patent GB-729502-A (GB)
Title: Improvements in or relating to a process for the production of hydrogen cyanide
IPC: C01C3/02
Filed: 1952-12-05
Abstract: In the production of hydrogen cyanide by interacting ammonia, a gaseous hydrocarbon and oxygen in the presence of a platinum metal catalyst at a temperature of 750-1,250 DEG  C., the reaction is initiated by electrically heating a starting coil of a platinum metal to a red heat in close proximity to the platinum metal catalyst.  The gaseous hydrocarbon may contain 80 per cent. by volume.  The molar ratio of oxygen to methane may be 1 : 1. Specification 723,508 is referred to.
Patent GB-605585-A (GB)
Title: Improvements in electric tumbler switches
IPC: H01H23/10
Filed: 1945-11-19
Abstract: 605,585. Tumbler switches; switch covers. DONALDSON, G. Nov. 19, 1945, No. 30951. [Class 38 (v)] The tumbler 25 of a snap-action switch has a transverse bore containing a removable fuse-carrier 30 with a central bore 32 or peripheral groove housing the fuse-wire 34 and end caps 40 for engaging fixed contacts 14 in a recess 16 in the base. A groove 18 permits withdrawal of the fuse which may be held in place by a U-shaped pin 44 or a screw. The switch cover may be in two parts 46, 48 hinged together and having a coil spring to urge it open, so that if the part 46 is raised while the switch is " on," the dolly 20 will be moved " off." Alternatively, the cover may be in two separate parts, Fig. 8 (not shown).
Patent GB-1374721-A (GB)
Title: Information storage
IPC: H01L29/768
Filed: 1972-07-03
Abstract: 1374721 Semi-conductor memory elements INTERNATIONAL BUSINESS MACHINES CORP 3 July 1972 [6 July 1971 (2)] 31011/72 Addition to 1374009 Heading H1K In a memory element in which binary information is represented by the flow of charge between a storage region III of a semi-conductor body 1 and a diffused region 3 making a PN junction with the body 1, a single electrode 32 is capacitively coupled both to the storage region III and to a gate region II between the regions 3 and III. The threshold voltage required on the electrode 32 to induce an inversion layer in the underlying semi-conductor material is lower for the storage region III than for the gate region II, with the result that the inversion layer in the region III may be selectively connected to or isolated from the diffused region 3 by an inversion channel in the region II. Two alternative modes of operation employing this facility and termed respectively "reach-through" and "clear" modes are described. The difference in inversion threshold between the regions is achieved in the illustrated embodiment by the provision at region II of a diffused or ion implanted zone 25 of the same conductivity type as but higher conductivity than the body 1. In a modification of this embodiment the higher conductivity zone defining the region II completely surrounds the diffused region 3. Other methods of achieving the required threshold difference are by providing a thicker oxide insulation 30 between the electrode 32 and the gate region II than between the electrode 32 and the storage region III, by providing a nitrideon-oxide insulation above the storage region III and oxide alone above the gate region II, or by providing an Al electrode above the gate region II and an Al-on-doped polycrystalline Si above the storage region III.
Patent GB-159072-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B29/00
Filed: 1919-12-11
Abstract: 159,072. Davidson, J. Dec. 11, 1919. Vaporizers, external. - A pump 1 for a twostroke-cycle engine is surrounded by a jacket 2 to which exhaust gases are led from the explosion spaces. Partitions for promoting circulation may be provided in the jacket.
Patent GB-818403-A (GB)
Title: Rotor blades for rotary wing aircraft
Inventor: CANTINIEAU JEAN
IPC: B64C27/473
Filed: 1955-10-31
Abstract: 818,403. Rotor blades. AEROTECNICA S.A. Oct. 31, 1955, No. 31105/55. Class 4. A blade for a rotary wing aircraft comprises a profiled leading edge spar member A and a profiled trailing edge spar B each formed at spanwise intervals with lugs 3 for attachment to chordwise ribs C of channel section. The root portions of the spars are drilled at 12, 13 and 14 respectively for attachment to a connecting member of the form shown in Fig. 17. A tip fairing connects the tip portions of the spars and it is apertured adjacent the leading edge for a bolt which is used to adjust the spanwise position of a balance weight located within a cavity in member A for the purpose of adjusting the tracking position of each blade . The spaces between the spars and the ribs are filled by blocks of a suitable filling material and the outer surfaces of this material are covered by doped fabric.
Patent GB-154887-A (GB)
Title: Improvements in and relating to internally heated or cooled rollers especially applicable to the drying, heating, or cooling of milk and the like liquids
IPC: A23D9/02
Filed: 1920-11-04
Abstract: 154,887. O'Connell, J., and Kerr, H. H. Dec. 3, 1919, [Convention date]. Rollers or cylinders, hollow. - A hollow roller intended to be internally heated or cooled, particularly for heating, cooling, or drying milk and like liquids, is provided internally w i t h tapered flanges or ribs b which project into the open interior. Specifications 5729/79 and 1102/14 are referred to.
Patent GB-1080554-A (GB)
Title: Synthetic vinyl fibres of high shrinkability
IPC: D01F6/08
Filed: 1964-08-04
Abstract: 1,080,554. Polyvinyl chloride fibres of high shrinkability. A.C.S.A. APPLICAZIONI CHIMICHE S.p.A. Aug. 4, 1964 [July 31, 1963], No. 31325/64. Heading B5B. Textile fibres comprising " P.V.C. of syndiotacticity index" greater than 2 and with a residual shrinkability in boiling water or saturated steam between 10% and 30% of the initial length after having been shrunk in boiling water or saturated steam have a tenacity greater than 2À5 g./den., an elongation at break between 30% and 55%, an initial elastic modulus between 20 and 40 g./den. and a shrinkage in trichloroethylene at 40 C. of less than 1%. The expression " P.V.C. of high syndiotacticity index " is defined as meaning (A) vinylchloride homopolymers prepared at temperatures of from -10 to - 60 C. and having an intrinsic viscosity [#] greater than 0À7 dl/gr. and a syndiotacticity index greater than 2 (the syndiotacticity being defined as the ratio between the absorption of the infra-red bands D635 and D692 cm.<SP>-1</SP>) and (B) copolymers or polymer mixtures containing at least 85% of vinyl chloride and satisfying these conditions. The residual shrinkability may be imparted to the fibres by subjecting them to an additional heat stretching step, e.g. a tow of polyvinyl chloride may be spun under hotstretching conditions, subjected to finishing, drying and heat-setting steps, all under tension, relaxed, and then subjected to further stretching at above 100 C., e.g. at a temperature between 100 C. and 180 C., preferably between 120 C. and 140 C. with a stretch ratio greater than 1À1: 1 and up to the maximum allowed by the tenacity of the tow. The fibres after having been subjected to the additional heat-stretching are cooled down under tension and crimped at a temperature below 50 C.