baber/WOPTO huggingface dataset:
Patent GB-1161871-A (GB)
Title: Preparation of Phosphors.
Inventor: LUCKEY GEORGE WILLIAM
IPC: C09K11/08
Filed: 1965-05-04
Abstract: 1,161,871. Luminescent materials. EASTMAN KODAK CO. 4 Aug., 1966 [4 May, 1965], No. 18767/65. Heading C4S. A method of precipitating an inorganic phosphor which is a salt, whose cation is an element included in Series 4 to 11 of Mendeleeff's Periodic Table comprises simultaneously running solutions containing the cation and anion of the salt respectively into a vessel containing a reaction solution and stirring rapidly, the excess of anion or cation being not more than 0À5 molar at least during the earlier part of the reaction, local excesses appreciably above the average being prevented by the stirring. Phosphors referred to include Ba, Ca and Sr sulphides, sulphates, carbonates, silicates, tungstates, molybdates, fluorides and germanates activated by Sn, Eu, Pr, Nd, Pb, U, Cu, Mn, Cr, Ti, V and Be; Na, K, Li and NH 4  activators may be included. Activated Ba and Ba-Ca sulphates are precipitated by adding a solution of BaCl 2 , PbCl 2  and HCl and a solution of Na 2 SO 4  and HCl to a reaction solution of Na 2 SO 4  and HC1. Sulphate ions may be added in the form of sulphates of metals in Groups I, II and III, e.g. Na, K, Ca, Cu, Zn, Al and In. The Ba and Pb ions may be added as soluble halides and acetates. Bi, Mn, Eu, Sn and Pr chlorides may be added to the BaCl 2  solution. The reaction may be carried out in a spherical vessel containing several baffles and having jets for the introduction of the reactants. During the reaction a 0À1 molar excess of anions or cations may be maintained in an aqueous solution having a pH less than 1 at 70<SP>‹</SP> to 100‹ C. HC1, HBr, HI, haloacetic benzene sulphonic, perchloric, phosphoric, phosphorous and hypophosphorous acids are used to control the pH value. The phosphors with a binder are used in X-ray intensifying screens.
Patent GB-959170-A (GB)
Title: Improvements relating to transistor gain control circuit arrangements
IPC: H03G3/30
Filed: 1963-05-13
Abstract: 959,170. Transistor amplifying circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. May 13, 1963 [May 12, 1962], No. 18794/63. Heading H3T. An amplifier whose input and output impedance do not change appreciably as the gain is varied comprises an emitter follower Q 1  feeding into a common emitter stage Q 2  which in turn drives a grounded-base stage Q 3 . The coupling between stages comprises capacitors C 7 , C 8  and R.F. chokes Dr 1 -Dr 4  and the gain is varied by variation of the base bias of the common emitter stage Q 2 . Variation of input and output impedance may be reduced still further by the provision of an un-bypassed resistor Re in the emitter circuit of this stage. As shown, the arrangement is applied to an I.F. amplifier of wide band-width, the input and output circuits comprising band-pass filters BF 1 , BF w  respectively; the arrangement is mounted on an earthing plate and the supplies fed in through feed-through capacitors C 1 -C 6 .
Patent GB-1536592-A (GB)
Title: Azo pigments of the beta-hydroxynapthoic acid series
IPC: C08L101/00
Filed: 1976-05-07
Abstract: 1536592 Azo pigments of #-hydroxynaphthoic acids BASF AG 7 May 1976 [10 May 1975] 18804/76 Heading C4P Novel azo pigments (containing a quinazolone ring) have the formula where D is the radical of a diazo component; X is -NH-; Y is -NH-, -CONH-, -NHCO-; n is zero or 1; m is zero or 1; and the rings A and B optionally bear from 1-3 substituents. D may be, e.g., phenyl or substituted phenyl, N-phenylphthalimidyl phenyl substituted by oxadiazole, or 1-anthraquinonyl. The pigments are prepared (a) by reacting the azo-#-hydroxynaphthoic acid chloride with an amine or (b) by reacting the diazo compound of an amine D-NH 2  with a coupling component The pigments may be used for mass coloration, e.g. of viscose, for coloured print pastes, surface coatings and lacquers, for colouring plastics, laminated paper or board, and for textile printing.
Patent GB-1176657-A (GB)
Title: Method and Means of Screw Thread Grinding.
Inventor: JELLIS MORGAN
IPC: B24B19/02
Filed: 1966-04-29
Abstract: 1,176,657. Grinding screw threads. COVENTRY GAUGE & TOOL CO. Ltd. 28 July, 1967 [29 April, 1966], No. 18839/66. Heading B3D. A method of screw-thread grinding comprises rotating a workpiece 4 and using means 5, 6 for sensing such movement and feeding signals responsive thereto to a computer, using further means 9, 10 for sensing linear movement of a wheel head 7 parallel with the axis of the workpiece and for feeding signals responsive to the linear movement to the computer, the latter co-relating the signals received from the two sensing means in terms of the required pitch of the screw thread form, and arranging resulting control by the computer of servo means for imparting the linear movement to the wheel head in corresponding relation to the rotation of the workpiece. The workpiece 4 is mounted between a headstock 2 and tailstock 3, the headstock also driving the sensing means consisting of a disc 5 having graduations or a grating co-operating with photo-electric reading head 6 which feeds signals to the computer. The wheel head 7 drives a multiribbed grinding wheel 8 and carries the further sensing means consisting of a reflector or prism 9 co-operating with a Laser-type interferometer 10 on the machine bed 1. The interferometer sends signals to the computer which relates the signals with those from the head 6 to control a servo means for effecting the linear movement of the wheel head.
Patent GB-741629-A (GB)
Title: Improvements in or relating to fastening devices for belts or similar articles
IPC: A41F1/00
Filed: 1953-07-07
Abstract: 741,629. Strap fastenings. ZAFERMAN, G. July 7, 1953 [July 11, 1952], No. 18848/53. Class 44. A fastening device for a belt 10 or similar article comprises the interlocked strips 11, 12 of a slide fastener permanently joined together and adapted to be attached to one end of the belt &c. to form a continuous track, and a slider 16, adapted to be attached to the other end of the belt &c. arranged to slide along the track and having means operable to engage the hooks 13 of the track whereby the slider may be locked to the track at any desired position. 'A lever 23 pivoted at 22 on the slider has two staggered teeth 25 arranged to engage with the hooks 13. The strips 11, 12 may be sewn together as at 14 and are secured to one end of the belt 10 by gluing or sewing. The slider 16 is secured to the other end of the belt 10 by a ring 17.
Patent GB-773541-A (GB)
Title: Improvements relating to joints for use in pipelines and between parts of vessels
Inventor: MACDONALD JOHN PARK ALLAN
IPC: F16L17/073
Filed: 1954-06-28
Abstract: 773,541. Joint-making packing. CRANE PACKING, Ltd. May 31, 1955 [June 28, 1954 No. 18860/54. Class 122 (3). [Also in Group XXVIII] A joint for pipelines or between parts of vessels comprises a ring 1 or strip of a material, such as metal, glass or plastic, which is normally non- resilient but has a degree of flexibility imparted to it in the direction of its thickness by a deep groove or slot 2 in its inside or outside periphery or edge. Ribs 3 or other continuous serrations or corrugations are provided to engage in recesses in the ends of the pipes 5.
Patent GB-1323010-A (GB)
Title: Method of providing a winding in a core for a dynam'electric  machine
IPC: H02K3/38
Filed: 1971-06-03
Abstract: 1323010 Placing coils in stators SIEMENS AG 3 June 1971 [3 June 1970] 18894/71 Heading B3A Pre-wound coils made from wire having a varnish insulation are inserted in slots 2 of a stator core 1 and then heated to soften the varnish, which agglutinates and on cooling hardens to make the coil rigid. The individual turns of the coil are held together by adhesive insulating coverings 4 and prior to insertion in the stator slots, the leading end 5 of the coil is compressed so that its thickness is less than that of the slots 2. The coil may be inserted by a tool, Fig. 3 (not shown). A plastic mandrel is inserted in the stator bore to compact the coil in the slots and a current is passed through it to soften the insulation. The core is provided with a thermoplastic insulation layer, particularly on its end faces.
Patent GB-531193-A (GB)
Title: Improvements in key mechanism for a matrix-composing and type line-casting machine
IPC: B41B27/04
Filed: 1939-06-29
Abstract: 531,193. Type-bar-making machines. TENNANT, W. J. (Typograph Ges.). June 29, 1939, No. 18985. [Class 100 (iii)] Keyboards. In keyboardmechanism in which electric circuits are made by the depression of the keys spring contacts are closed at the beginning of the key movement and are independent of further key-depression, so that full depression of a key effect: no further flexing of the contacts. Each key-rod 8 is connected by a link 7 tc a rotatable cam-disc 4 which normally presents a flattened portion 5 above a pair of spring contacts 2 On depression of the key a part 10 of the cam of greater radius closes the contacts. The part 10 is concentric with the pivot of the cam, so that further depression of the key does not flex the contacts further. The part of the cam opposite to the operative part 10 is symmetrical therewith, so as to produce a counter-balancing force, which aids a spring 9 in raising the key.
Patent GB-530986-A (GB)
Title: Improvements relating to display cartons
IPC: A47F5/11
Filed: 1939-06-29
Abstract: 530,986. Packaging. GILL, W.V., GILL, F. J., GILL, C. W., GILL, A. R., (trading as GILL & SONS, J. W.), and HAMBLETON, J. June 29, 1939, No. 18987. [Class 94 (i)] [Also in Group XVIII] A display carton comprises a backing a scored for folding and carrying two pockets b so disposed that when the carton is folded the pockets are staggered and the articles disposed therein overlap. The pockets b are attached to the backing a by stitching &c. and are so shaped and cut as to fold for erection in the manner shown in Fig. 4. Suspension holes are provided in the flap f or top e of the backing a. The folded carton may form a drawer or insert for an outer container.
Patent GB-333867-A (GB)
Title: Improvements relating to wire tying machines
IPC: B65B13/02
Filed: 1929-05-22
Abstract: 333,867. Gerrard Wire Tying Machines Co., Ltd., (Gerrard Co., Inc.). May 22, 1929. Divided on 333,648. Wire strainers.-Gripping means for the free end of the wire in a bale &c. wiring machine comprise a serrated dog 15 pivoted on a shaft 14 and coacting with a stationary anvil 6 on the machine frame. The dog is provided with an operating finger 13 and is normally drawn into gripping position by a spring 11 secured at one end to the machine frame and at the other to a pin 12 projecting from the dog. The second bight o,f the wire is retained in position behind a gravity-controlled latching member 10 also pivoted on the shaft 14. The latch is provided with a shoulder 7 engaging the finger 13 to limit the counter-clock rotation of the latch, and with a pin 8 which, when the latch is rotated clockwise by raising a lever 9 forming an extension thereof to free the second bight, coacts with the finger 13 to raise the dog and free the original free end of the wire. The latch is provided with a bevelled front portion so that the inserting of the second bight of wire swings the latch sufficiently to enable the wire to pass behind it without positive operation of the latch. Specifications 333,648 and 333,868 are referred to.
Patent GB-579025-A (GB)
Title: Improvements in door handle fittings
IPC: E05B3/04
Filed: 1944-10-05
Abstract: 579,025. Securing knobs on shafts. KIRKCALDY, J. Oct. 5, 1944, No. 19096. [Class 80 (ii)] [Also in Group XXV] A door handle 1 having a non-circular socket 6 is secured to a spindle 3 of polygonal section by outer and inner nuts 8, 9 respectively, threaded on a screwed extension 7 which is connected to the spindle 3 by a cross-pivot 12: The inner nut 9 has serrations 10 which bite into the material of the knob (which may be wood or synthetic resin) at an internal shoulder 11. The head 8a of the outer nut 8 engages an external shoulder 13 of the knob and is slotted to receive a screwdriver.
Patent GB-732964-A (GB)
Title: Improvements in or relating to fork-lift trucks
IPC: B66F9/18
Filed: 1951-08-14
Abstract: 732,964. Gripping attachments for fork lift trucks. MIAG FAHRZEUGBAU GES. Aug. 14, 1951 [Aug. 14, 1950; Dec. 19, 1950; June 22, 1951], No. 19098/51. Classes 78 (3) and 78 (4). The inside faces of the tines of a fork lift truck are provided with fluid pressure operated gripping devices which engage the spaced lowermost articles of a stack. The devices each comprise a pair of resilient headed pistons 5 operating in a common cylinder 4 which has an inlet port 21 and is secured transversely in a tine 3, a spring 6 being provided to retract the pistons. Separate cylinders are provided for each piston on the end tines of the fork and, in a modification, all the grippers are of this type. Each gripper cylinder is connected by a conduit to one end of an intermediate cylinder (not shown) provided with a floating piston and having its other end in communication with the lifting ram cylinder, thus different fluids, e.g. air and oil, may be used for the gripping and lifting circuits. In the modification (Fig. 5), the intermediate cylinder 9 has two pistons 11, 12 spaced by a spring 13, and an adjustable abutment stop 14 which, by engaging piston 11 at a predetermined lifting ram pressure limits the pressure in the gripping circuit. A stop cock (not shown) is provided to isolate the gripping circuit from the lifting ram. In the arrangement shown in Fig. 6, the gripper cylinders 4 are connected by conduits 7, 7<SP>1</SP>, 7<SP>11</SP> to a pressure limiting device comprising a cylinder 24 containing a spring- loaded piston 23, the rod 27 of which returns the manually-operated pressure control lever 29 to a neutral position when a predetermined pressure is applied to the grippers. The spring 25 may be replaced by gas under pressure.
Patent GB-893835-A (GB)
Title: Improvements in or connected with wire conveyor belts
Inventor: MIDLANE RICHARD MACDONALD
IPC: B65G39/20
Filed: 1958-06-14
Abstract: 893,835. Endless conveyers. LANE & SONS Ltd., GEORGE. Sept. 14, 1959 [June 14, 1958], No. 19106/58. Class 78 (1). In a wire conveyer belt of the kind comprising a series of transverse rods 3 connected between a pair of roller chains and a series of wire helices 4 arranged between and around the rods 3 to provide a conveying surface, some of the outermost links 6a of the chains have integral bosses 6b projecting beyond the ends of the rods 3 for engagement with stationary guide walls 9 which are arranged at the sides of the belt to prevent the belt wandering laterally. The bosses have convexleading edges to facilitate their traverse over any projections in the guide walls. The chain links 5, 6, together with rollers 7, are mounted on reduced portions of the rods 3 and held in position by cotters 8.
Patent GB-731030-A (GB)
Title: Thiosemicarbazones and a process of making same
Filed: 1953-07-09
Abstract: The invention comprises thiosemicarbazones of the formula R-Yn-O.X.CH=N.NH.CS.NH2 where R stands for hydrogen or a saturated or aromatic hydrocarbon radical with at most 6 carbon atoms, X is a phenylene radical which may be substituted by halogen and/or an alkyl or alkoxy group having at most 6 carbon atoms, n is an integer of 1 to 15, and Y represents, when n is 1, one of the groups <FORM:0731030/IV (b)/1> and when n is greater than 1, one of the said oxy groups or -O.CH2.CH2-, each Y being the same or different in the same molecule.  The compounds are obtained by reacting an aldehyde, R-Yn-O.X.CHO, with thiosemicarbazide. Examples describe the preparation of the thiosemicarbazones of (1) p-2-(2-methoxyethoxy) - ethoxy - benzaldehyde and (2) p-[a -2 - (a ,a 1 - dimethoxy - iso - propoxy) - ethoxy - iso-propoxy]-benzaldehyde, and the following are also specified: thiosemicarbazones of the above formula where X is C6H4 and R-Yn-is CH3.O.C2H3.(CH3)-, CH3 . O . C2H3 (CH2. O . CH3)-, CH3 . O . C2H3 (CH3) . O . C2H4-, CH3. O. C2H4 . O . C2H3 (CH3)-, CH3 (O . C2 H3)2 (CH3)-, n - C4H9 . (O . C2H4)2-, C6H5 . O . C2H4 . O. C2H3 (CH2 . O . CH3)-, CH3 . (O . C2H4)3-, CH3 . (O . C\ C2H4)4)4-, CH3 . (O . C2H3 . CH3)3-, H . (O . C2H4)2-, H . (O . C2H3 . CH3)2-, CH3(O.C2H4)8-, CH3(O.C2H4)14-, H . (O . C2H4)6- and H . (O . C2H3 . CH3H3-; thiosemicarbazones of the formula CH3.(O.C2H4)11.-O.X.CH=N.NH.CS.NH2, where X is C6H3Cl-, and C6H2Cl2-; and thiosemicarbazones of salicylic aldehyde and of vanillin having the formula CH3.Yn.O.X.CH=N.NH.CS.NH2, where -Yn.O.X- is -(O.C2H4)7.O.C6H4-, -(O.C2H4)12.O.C6H4 and (O.C2H4)2.O.C6H3(O. C6H3(O.CH3)-.  Specification 721,479 is referred to.
Patent GB-1196108-A (GB)
Title: Bearing Block
Inventor: HARKEN PETER OSCAR
IPC: B66D3/04
Filed: 1969-04-15
Abstract: 1,196,108. Bearing blocks. P. O. HARKEN. 15 April, 1969 [18 April, 1968], No. 19176/69. Heading B8B. A bearing block comprises an annular sheave 14 rotatably mounted between side plates 10, 12, a web 42 depending radially inwardly from the sheave and ball bearings 16, 17 on opposite sides of the web, the balls bearing on cylindrical shoulders 26, 28 on the side plates and the sides of the plates 10, 12 to mount the sheave freely between the plates. The radii of the balls is greater than the corner radii between the sheave and its web and between the plates and their shoulders so that there is no bearing contact at the corners. The side plates 10, 12 are secured together by bolts 36 and are formed to receive a pivot pin 54 above the sheave, the pin being lockable by screws 62. The balls 16, 17 are formed from a plastic material which is less hard than a plastic material of which the sheave and side plates are formed, whereby the balls receive the majority of wear. In the embodiment of Figs. 3-4 (not shown), the sheave web is formed with ratchet teeth engageable by a pawl mounted within the sheave. The pawl which is spring biased into the operative position is rotatable into an inoperative position by a manually operated eccentric cam.
Patent GB-1454717-A (GB)
Title: Process for producing cycloolefin
IPC: B01J23/56
Filed: 1975-05-07
Abstract: 1454717 Cycloolefins MITSUBISHI CHEMICAL INDUSTRIES Ltd 7 May 1975 [9 May 1974 17 Feb 1975] 19193/75 Heading C5E Cyclo-olefins are produced by the partial hydrogenation of benzene or substituted benzenes containing up to 3 C 1 -C 3  alkyl groups at 20-250‹ C. under H 2  at 1-200 atmospheres in an aqueous medium which does not contain an alkali in the presence of (1) a catalyst comprising Ru and/or Rh and (2) a promoter selected from metals of groups Ia and IIa, Zn, Mn, Fe, ions thereof and ammonium. The promoter and the catalyst may be supported on a carrier such as zeolite, silica, silicaalumina, alumina and kieselguhr. Alternatively the promoter may be in ionic form dissolved in the aqueous solution. Examples describe the hydrogenation of benzene, toluene and oxylene.
Patent GB-914465-A (GB)
Title: Improvements in or relating to bottles for containing wines or other beverages
IPC: B65D81/36
Filed: 1960-05-31
Abstract: 914,465. Bottles. STONEHILL & CO. Ltd., J. April 5, 1961 [May 31, I960], No. 19229/60. Class 66.  A wine &c. bottle comprises a body 10 formed with a waist and a neck, the neck exceeding one half the length of the body and there being a plurality of ribs 15 extending along the neck and body but interrupted in the vicinity of the waist to provide a flat surface.
Patent GB-336948-A (GB)
Title: Improvements in the manufacture of magnetic alloys
IPC: C22C38/08
Filed: 1929-06-22
Abstract: 336,948. Smith, W. S., Garnett, H. J., and Randall, W. F. June 22, 1929. Annealing.-Magnetic alloys substantially free from carbon and comprising mainly iron and nickel are treated to produce high and constant permeability by heating to a high temperature, e.g. 900‹ C. or over, until completely annealed, followed after cooling by a further heating to a lower temperature not exceeding 700‹ C. but which is at least 50‹ in excess of the magnetic change point of the alloy, and in the case of alloys containing not more than 50 per cent nickel preferably at least 100‹ above the change point.. The alloy is preferably mechanically strained between the two heat treatments. Up to 10 per cent of one or more of the following elements may be added to increase the specific resistance of the alloy:- manganese, chromium, copper, molybdenum, tungsten, vanadium, aluminium, or silicon, and alloys containing specified proportions of nickel iron and manganese; nickel, iron and chromium; and nickel, iron and copper are referred to. In the manufacture of a loaded signalling conductor wire or tape made from a nickel iron alloy may be annealed by heating at about 900‹ C. for 15 minutes, cooled, wound on a copper conductor, the winding producing the desired straining of the alloy, and the loaded conductor then heated for about four minutes at a temperature at least 50‹ above the change point and not exceeding 700‹ C. but preferably above 500‹ C.
Patent GB-1422909-A (GB)
Title: Two position telephone handset support steam generator
IPC: H04M1/05
Filed: 1974-05-02
Abstract: 1422909 Supporting telephone handsets L H VAN DYKE 2 May 1974 19406/74 Heading H4J A holder 14 for a handset is adjustable into two angular positions on a base member 2 to permit wearing on the left or right shoulder. The base member 2 is faced with spongelike material 4 and carries an arm 6. The holder 14 is secured to the arm 6 by a screw 10 and nut 12. Side face 20 of holder 14 has a channel defined by parallel side walls 28, and a second channel defined by parallel side walls 32. Each channel snugly accommodates the arm 6, one for left shoulder working and the other for right shoulder working. Each channel has a cylindrical boss 34, 36. The arm 6 has a cylindrical well 38 (Fig. 4) and when the holder 14 is configured as shown in Fig. 1, the boss 36 fits into the well 38. For left shoulder working the boss 34 is fitted into the well 38. Such arrangement gives rigidity to the coupling of the holder 14 and arm 6. A flexible metallic band 42 is looped over the handset 40.
Patent GB-1392365-A (GB)
Title: Friable distearyl pentaerythitol diphosphite
IPC: C08L7/00
Filed: 1972-04-26
Abstract: 1392365 Distearyl pentaerythritol diphosphite WESTON CHEMICAL CO Inc 26 April 1972 [29 Nov 1971] 19425/72 Heading C2P [Also in Division C3] A novel friable composition comprising from 85 to 90% by weight of distearyl diphosphite and from 5 to 10% by weight of stearyl alcohol and having a solidification point of from 55‹ to 60‹ C. is obtained by reacting 1 mol. of pentaerythritol and 2 mols. of triphenyl phosphite with at least 2À2 mols. of stearyl alcohol or by reacting 1 mol. of diphenyl pentaerythritol diphosphite with at least 2À2 mols. of stearyl alcohol, the reactions being suitably effected in the presence of a transesterification catalyst. The product which can be ground to a free-flowing powder is useful as a stabilizer for organic polymers, especially an olefin-, vinyl halide- or vinylidene halide polymer or copolymer.