baber/WOPTO huggingface dataset:
Patent GB-897062-A (GB)
Title: Improvements in tape winding apparatus
IPC: G11B15/43
Filed: 1959-11-24
Abstract: 897,062. Feeding webs. COMPTOMETER CORPORATION. Nov. 24, 1959 [Nov. 24, 1958], No. 39932/59. Class 100(1) Tape 124, Figs. 1 and 9, is wound on a spool 48 under the control of a finger 122 engaging the tape. The finger 122 projects from an arm 120 biased upwardly by a spring 136. A mercury switch 140 is attached to a bracket 134 secured to the arm 120. The switch 140 controls the operation of an electric motor 78 in response to tape tension variations as detected by the finger 122. The motor 78 drives the spool through a pulley 106 belt 108 and a pulley 26, Fig. 5. The rotor shaft 88, Fig. 9, of the motor 78 is axially slidable and may be held so as to disengage the motor from a gear train, not shown, by a lever 144 which rocks about a screw 146. The lever 144 has a leg 150 to co-operate with a post 152 fixed by a bracket 134 to the arm 120. A guide 164 for the lever 120 has a catch, not shown, for holding the lever such that the shaft 88 is blocked, thereby permitting freewheeling of the spool 48. Tape is threaded manually around fingers 110, 122, 112, 116 and 114 and secured to pins 54, Fig. 5, of the spool by winding around such pins, or alternatively may be secured to a cardboard core, not shown, surrounding the pins by pressure sensitive tape. The reel 48 may be dismantled to facilitate securing the tape by rotating the flange 50 to release pins 54 from locking engagement with a washer 58. After reassembly, the spool 48 is mounted on a post 34, such that pins 54 enter holes 36 in the pulley 26, to prevent relative rotation between the pulley 26 and spool 48. The spool 48 is maintained in engagement with the pulley 26 by magnets 38.
Patent GB-1162550-A (GB)
Title: Improvements in or relating to Push-Button Electric Switches.
IPC: H01H36/00
Filed: 1967-09-01
Abstract: 1,162,550. Magnetic switches. SIEMENS A.G. 1 Sept., 1967 [2 Sept., 1966], No. 40053/67. Heading H1N. A push-button switch has an annular radially magnetized permanent magnet 3 which is engaged by a surface 2e of the push button 2 after it has been moved a distance S and further push button movement separates the permanent magnet from a magnet casing 1b and it is subsequently attracted by a magnetic contact pin 5 and snaps downward against a flange 2d of the push button 2. In this condition the pin 5 attracts a magnetic contact spring 6 in a sealed magnetic casing. The contacts open when the push button 2 is restored to the position shown, by a compression spring 8.
Patent GB-1178495-A (GB)
Title: Transparent Ceramics and Method for producing same
Inventor: ANDERSON RICHARD CHARLES
IPC: C04B35/505
Filed: 1967-09-01
Abstract: 1,178,495. Transparent yttria ceramics. GENERAL ELECTRIC CO. 1 Sept., 1967 [28 Sept., 1966], No. 40141/67. Headings C1A and C1J. A high density transparent polycrystalline body consists of yttria and 2-15 mole per cent of ThO2, ZrO2 or HfO2 singly or in any combination. Preferred are ThO2 8-10 mole per cent and ZrO2 5-12 mole per cent. Yttria is mixed with the particular oxide or its precursor, compacted, fired at not below 1900‹ C., and then to eliminate any reduced products, fired at above 1200‹ C. in an atmosphere containing a partial pressure of oxygen.
Patent GB-1537459-A (GB)
Title: Valves for fluids
IPC: B60T13/12
Filed: 1977-09-28
Abstract: 1537459 Valves ROBERT BOSCH GmbH 28 Sept 1977 [29 Sept 1976] 40283/77 Heading F2V A braking system solenoid valve requiring only a small force for initial operation has first, second and third connections I, II, III, a first closure 21 and a second closure 20 for seats 10<1>, 12 between second and third and between first and second connections respectively, the first closure being seated when an armature 13 is in a rest position to which it is biased by means 16, 17 when the second closure is unseated, there being spring seating bias 35 for the first closure supported by a fixed part 11<1> and bias means 25, applied to the second closure, supported by the armature. Partial energization of the solenoid coil 5 moves the armature to an intermediate position against coil and leaf springs 34, 16, 17 where both closures are seated. Full energization of coil 5 holds the second closure 20 seated and unseats the first closure 21 by compressing springs 25, 35.
Patent GB-1089290-A (GB)
Title: Printed circuit board connector and switching arrangement
IPC: H01R24/60
Filed: 1965-09-24
Abstract: 1,089,290. Edge connectors. STANDARD TELEPHONES & CABLES Ltd. Sept. 24, 1965 [Sept. 26, 1964], No. 40759/65. Addition to 1,071,695. Heading H2E. A printed circuit board, which is inserted to different extents into an edge connector to make different connections between the contacts of the latter as described in Specification 1,071,695, has notches 2, Fig. 3, or a projection 18, Fig. 5, on one edge only which co-operate or co-operates with a latch 8 to hold the board in the different positions. As shown, the latch 8 has a projection 9 and abutments 11 and 15 to prevent lateral movement of the board, but for co-operation with a single projection 18, Figs. 5 and 6 (not shown), it has a slot 17<SP>1</SP> with a resilient projection 20 or projections (20<SP>1</SP>) to hold the board in two alternative positions, into one of which it may be spring urged.
Patent GB-850432-A (GB)
Title: Internal combustion engine with double-acting pistons
IPC: F02B75/28
Filed: 1958-12-17
Abstract: 850,432. Combustion chambers; driving gear. ROTH, A. Dec. 17, 1958 [Dec. 18, 1957], No. 40762/58. Class 7(2). An engine comprises cylinders arranged in a polygonal formation and situated in a common plane wherein each cylinder contains a pair of double acting pistons connected by connecting rods to a crank-shaft and the engine includes an inner combustion chamber in each cylinder disposed between the pistons and outer combustion chambers disposed between and common to the ends of adjoining cylinders, the outer combustion chambers being equal in number to the inner combustion chambers. In Figs. 1 and.2, the pistons confine therebetween combustion chambers 6, 7, 8, 9 into which fuel is injected through nozzles 25, 251, 36, 37, air inlet slots are at 12, 14, 15, 17 fed by ducts 19, 20 and outlet slots are at 10, 11, 13, 16 where they discharge burnt gas into ducts 18, 21, 22, 23. A watercooling jacket surrounds the cylinder at 24. The pistons may be arranged with a phase displacement in order to open and close the outlet slots before the inlet slots in order to permit supercharging, e.g. by an exhaust gas turbine. In an engine having four combustion chambers and two parallel straight line cylinders, adjacent pistons may be interconnected by a rigid link which is in turn connected by a bell crank lever or connecting rod to the crank-shaft. Engines having more than two cylinders may be arranged in the form of a square, polygon or triangle as in Fig. 3. The axis of the crank-shaft may lie parallel to the plane containing the axes of the combustion chambers as in Fig. 1 or may pass perpendicularly through the plane as in Fig. 3. The engine can be arranged to work on the two- or four-stroke cycle. In Fig. 3 the opposed pistons 40, 41 are connected by links 49 to bell crank levers 50 mounted on stationary pivots 51 and pivoted at 52 to separate connecting rods 53 which are journalled to a common crank-pin on crank-shaft 54, the arms of the bell crank levers being offset at 59. For the other cylinders the bell crank levers have arms 56 and 58 which are axially spaced on a sleeve 57 which permits connection to the crank-pins lying outside the plane of the cylinders. Combustion in the chambers 46, 47 and 48 moves pairs of pistons in the cylinders 1 towards one another, thus rotating the crank-shaft by means of the bell crank levers and connecting rods and at the same time compressing the charge in the combustion chambers between the opposed pistons in. which combustion is initiated by the injectors 66.
Patent GB-1504070-A (GB)
Title: Prostaglandin salt
IPC: C07C401/00
Filed: 1976-10-01
Abstract: 1504070 A prostaglandin salt UPJOHN CO 1 Oct 1976 [14 Oct 1975] 40926/76 Heading C2C The invention comprises the L-arginine salt of 9α,11α,15α - trihydroxyprosta - 5 - cis,13- trans-dienoic acid and its preparation in a freeflowing solid form by slowly adding a substantially water-free solution of the salt in a polar organic solvent to an organic non-solvent for the salt and isolating the resulting precipitate. Pharmaceutical compositions suitable for parenteral administration contain the above salt with pharmaceutically acceptable carriers. The compositions are used in the regulation of the oestrus of domestic animals.
Patent GB-1429247-A (GB)
Title: Variable electrical supply apparatus
IPC: H02M7/06
Filed: 1973-08-30
Abstract: 1429247 Transformers; resistance motor controllers HAMMANT & MORGAN Ltd 29 Aug 1974 [30 Aug 1973] 40948/73 Headings H1T and H1S A variable output electrical supply apparatus for providing a variable D.C. output comprises a control mechanism including a control member (34) having a stud 76 underneath it, the control member being mounted for movement along either one of two parallel tracks 38, 40 and movable from one track to the other at one end 42 of the tracks, movement down a track decreasing the output from a variable transformer or resistor and transfer between tracks operating a switch 20 to reverse polarity, the switch having a slider 60 carrying movable contacts 66, 68 which engage fixed contacts 70. As shown the control member moves a slide member 50 carrying a wiping contact 74 engaging a transformer winding (not shown). In other embodiments the variable transformer, and rectifier circuit may be replaced by a variable resistor or a transistorized voltage control circuit. The switch slider 60 may be circular instead of linear.
Patent GB-1463264-A (GB)
Title: Conditioning of perhalogeno-copper phthalocyanines
IPC: C09B67/12
Filed: 1975-10-07
Abstract: 1463264 Conditioning perhalogeno copper phthalocyanines BAYER AG 7 Oct 1975 [16 Oct 1974] 41005/75 Heading C4P Perhalogeno copper phthalocyanine granular pigments are prepared by introducing a perhalogeno copper phthalocyanine crude pigment into an organic solvent containing a C 8 -C 18  alcohol sulphate in suspension, heating the mixture to 100-150‹C. under pressure, filtering off the granules and removing the solvent by washing or steam distillation. Preferred solvents used in amounts of 50-150% by weight of dry pigment include chlorobenzene, o-dichlorobenzene and nitrobenzene.
Patent GB-1067431-A (GB)
Title: Magnetic memory devices
IPC: G11C11/06
Filed: 1963-10-17
Abstract: 1,067,431. Magnetic storage devices. WESTERN ELECTRIC CO. Inc. Oct. 17, 1963 [Nov. 6, 1962], No. 41010/63. Heading H1T. [Also in Division H3] A magnetic memory device comprises a member 15 (Fig. 1) of magnetic material having a rectangular hysteresis characteristic and having an aperture 13 (or 14), the word write pulse being passed through a conductor 10 of shape corresponding to magnetic member 15 (or through member 15 itself if it is conductive) to produce a field orthogonal to the flux path round the aperture and a small overlapping digit write pulse being passed through a conductor 17 (or 18) to set the flux direction at 30 or 31 according to the information to be written. Read-out is destructive or non-destructive according to the size of the read-out pulse from source 16. The magnetic member may be anisotropic with circular easy axes around the apertures or the easy axis direction may be somewhat skew to the apertures. Alternatively, the magnetic member may be an isotropic magnetic film wholly surrounding a twoapertured conductor, information being then written at the apertures in the form of helical remanent magnetism around the material surrounding each aperture (Figs. 5 and 7, not shown). Alternatively, the conductor may itself be the magnetic member. The apertures may be formed between two conducting strips (70), (71), Figs. 9 and 10 (not shown), which may be made of, or plated with, rectangular loop magnetic material and may be spot welded together or to soft magnetic spacing members (78). In a two-aperture-per-bit memory arrangement comprising a magnetically plated (or magnetic) conducting bar (82), Figs. 11 and 12 (not shown), a " 0 " is written in by a word write current pulse through the bar coincident with pulses in the same direction through conductors (85), (86) producing a resultant flux as shown by the arrowed line. If the coincident pulses in (85), (86) are on opposite directions a " 1 " is recorded (Fig. 12). A limited read pulse through the bar (82) produces an output only if a " 1 " is written. A read-out pulse of the same magnitude as the word write pulse removes the stored information and produces outputs in (87), the polarities of which depend on the information stored. In another twoaperture-bar-bit arrangement (Fig. 14, not shown) the word pulse is applied through a conducting bar disposed along the length of a magnetic conducting bar having pairs of holes therein. In another arrangement (Fig. 13, not shown) the word pulse current flows on one side of the apertures only being blocked on the other sides by insulating high permeability plug members which close slots in a magnetic or magnetically plated bar to form the aperture. Alternatively, the conducting magnetic or magnetically plated bar may have two triangular apertures pointing towards each other at each bit location (Figs. 15 and 16, not shown) the information being stored mainly in the form of helical remanent magnetism in the material between the apertures.
Patent GB-910153-A (GB)
Title: Joining wooden parts to each other or to other materials
IPC: F16B12/04
Filed: 1960-11-29
Abstract: 910,153. Carpenters' joints. HOFMANN, W. Nov. 29, 1960 [Dec. 1, 1959], No. 41014/60. Class 20 (2). In a tongue and groove joint between wooden parts or wood and other materials interengaging tongues 2 are tapered and parallel sided at the outer ends 3 and the inner ends 6. The tongues may be symmetrical or as shown in Fig. 2 one side is parallel to the side 7 of the wooden part and to the direction of the wood fibres.
Patent GB-1321094-A (GB)
Title: Automatic range finding apparatus and cameras incorporating the same
IPC: G02B7/32
Filed: 1970-08-26
Abstract: 1321094 Automatic focusing EASTMAN KODAK CO 26 Aug 1970 [26 Aug 1969] 41109/70 Heading H4D A camera, Fig. 1 (not shown), is automatically focused on an object plane 66, Fig. 2 by means of light from a strip source 36 (e.g. a straight filament bulb 32) being modulated by chopper 38 and directed by lens 28 towards the object plane 66 to form a more or less focused image 52 of the strip source. Light from the image is directed by lens 30 to fall on a strip photodetector 40. Light source 32 and detector 40 are coupled together and are movable in the direction of arrow 48 by means of motor 46 so that whatever the range of plane 66 the image 52 and 42 can be brought to sharp focus whereby the detector 40 receives maximum light and gives maximum output. To focus, button 20 is depressed. This completes the circuit of power supply 49 whereby circuitry 54, 56, 58, 60 energized and motor 46 starts to move source and detector 32, 40 until the maximum output, or focused position, is reached. Due to the chopper 38, the detector output is A.C., and is selected by noise rejecting bandpass filter 54. The maximum is detected by peak detector 58 whereby a trigger circuit 60 is activated to stop and clamp the motor 46. A cam 50, rotating with the motor, controls the position of the main camera lens 12 which is thus positioned in position such that the plane 66 is in focus on the film. Depressing the shutter release button 22, uncouples the power supply 49 so that circuitry 54/60 are dead and the motor returns to its initial position under the action of spring 51. To produce a sharper peak in the detector output a mask 72, Fig. 4 is placed-front of lens 28 having a slit parallel with filament 36. An opaque strip 76 is placed in/out of lens 30 such that the light reflected from the image 52 produced on plane 66 by the narrowed beam of light Fig. 6, (not shown), passes round the strip 76 to form two flat wedges of light 78, 80 which only meet at the detector when the image is in focus.
Patent GB-937976-A (GB)
Title: Cyclododecylacetic acid esters, derivatives thereof and intermediates therefor
IPC: C11B9/00
Filed: 1961-11-16
Abstract: The invention comprises cyclododecyl acetic acid and alkyl esters thereof of the general formula: (CH2)11CH-CH2-COOR where R represents a hydrogen atom or an alkyl group containing 1 to 5 carbon atoms. The compounds of the invention are prepared by (1) reacting cyclododecanone in the presence of zinc with an alkyl a -bromacetate of which the alkyl group contains 1 to 5 carbon atoms and hydrolysing the product with aqueous sulphuric acid to give an alkyl-(1-hydroxycyclododecyl) acetate; (2) dehydrating the beta hydroxy ester, e.g. by means of phosphorus oxychloride in the presence of an organic base, e.g. pyridine, or by distillation in vacuo in the presence of 1 to 5% by weight of para-toluene sulphonic acid, to obtain a mixture of isomeric alkyl cyclodec-1-enyl acetates; (3) hydrogenating the isomeric unsaturated esters, e.g. in the presence of raney nickel, or in the presence of platinum in an acetic acid medium, to form a cyclododecyl acetic acid ester; (4) saponifying the ester to form the free acid.  Some of the cyclododecyl acetic acid esters may be formed by transesterification from esters of the same group or by esterification of cyclododecyl acetic acid with the appropriate alcohol.  Examples are furnished.
Patent GB-992888-A (GB)
Title: Monorail particularly for underground mining
IPC: B61C13/04
Filed: 1963-10-18
Abstract: 992,888. Monorail conveyers. BECORIT GRUBENAUSBAU G.m.b.H. Oct. 18, 1963 [Dec. 15, 1962], No. 41175/63. Heading B7L. A monorail conveyer has carriages 2, 3, 4 moved along a rail 1 by a traction rope 8 passing over guides 12 spaced along rail 1, one or more of the carriages, e.g. carriage 4, having a rope reserve drum 7 on to which a portion of the rope can be wound to adjust the length of rope, the opposite end 9 of which is connected by a link and eyepiece to another carriage. A slotted flange on guides 12 enables an arm 10 connecting carriage 2 to rope 8 to pass and a tubular member 13 of similar shape houses the rope to enable it to pass the guides. The member 13 is split into two pieces held together by clamps 14 to enable the rope to be removed during winding on or off drum 7. The member 13 is connected to carriage 4 by a plate 15 to which parts of the clamps 14 may be fixed. The carriages 2, 3, 4 are spaced apart by adjustable links 5, 6.
Patent GB-1490931-A (GB)
Title: Colour extract from beets and method for the preparation of same
IPC: C12N1/18
Filed: 1975-08-08
Abstract: 1490931 Colour extract from beets WISCONSIN ALUMNI RESEARCH FOUNDATION 8 Oct 1975 [15 Oct 1974] 41254/75 Heading C4P A process of treating beets to recover beet pigment in a concentration and form suitable for use as a vegetable colouring agent comprises the steps of reducing the beets by pulping to a phase insoluble in aqueous medium and an aqueous phase in which the beet pigment along with other soluble carbohydrates, nitrates, nitrites and proteins are present in the dissolved state, subjecting the water soluble portions of the beets dissolved in the aqueous phase to carbohydrate fermentation with or without prior separation of the insoluble phase, whereby soluble carbohydrates and some crude proteins are converted to insoluble fermentation reaction products while the beet pigment remains dissolved in the aqueous phase, and separating the soluble phase containing the beet pigment from the insoluble phase. The aqueous phase may be separated from the insoluble phase by filtration decantation, or centrifuge. The fermentation is aerobic and is carried out in acid pH conditions, e.g. pH 4-6, at from ambient to 40‹ C with introduction of a yeast inoculant and an oxygen containing gas, e.g. air into the aqueous phase. Yeast and oxygen are added in amounts to maintain maximum yeast growth without increase in oxygen level. Nutrients, e.g. ammonium salts and soluble phosphoric acid salts may be added. The separated aqueous phase containing beet pigment may be concentrated or converted to a dry powder. The insoluble phase may be separated from the aqueous phase prior to the fermentation step.
Patent GB-1013527-A (GB)
Title: Improvements in and relating to joints between horizontal beams and vertical posts in pallet storage racks and similar structures
IPC: A47B57/40
Filed: 1964-10-12
Abstract: 1,013,527. Pallet structure. SKANDINAVISK AERO INDUSTRI A/S. Oct. 12, 1964 [Nov. 11, 1963], No. 41524/64. Heading A4B. A horizontal beam 1 having an angular end member 7 is attached to a vertical post 2 by inserting locking tongues 10 into elongated oblique apertures 11, formed in the post web 4. The tongues 10 are partially punched out from a leg 8 of the angular member 7 and offset so as to lie in a plane substantially parallel to the leg 8 and at a distance therefrom corresponding to the thickness of the post web 4. Each tongue 10 may be Z-shaped, Fig. 3, or U-shaped and they are formed to extend in the same oblique direction as the apertures 11. A stop pin may be inserted into holes 17 when the beam 1 is in position to prevent accidental lifting of the beam.
Patent GB-1277777-A (GB)
Title: Improved water-glass cements
IPC: C04B22/16
Filed: 1969-08-20
Abstract: 1277777 Tempered phosphates of Fe, Pb, Mg and Zn FARBWERKE HOECHST AG 20 Aug 1969 [20 Aug 1968] 41527/69 Heading C1A [Also in Division C3] A water-glass cement includes as hardener at least one tempered phosphate of zinc, lead, iron or magnesium. The iron phosphate may have been obtained by tempering an acid iron phosphate having a ratio of P 2 O 5  : Fe 2 O 3  in the range of from 1À1 : 1 to 3 : 1 at a temp. in the range 550-900‹ C., preferably 550‹ to 600‹ C., until its weight remains constant. The lead phosphate may have been obtained by tempering an acid lead phosphate having a ratio of P 2 O 5  PbO in the range of from 0À35 : 1 to 1 : 1 at a temp. in the range of from 450‹ to 850‹ C., preferably 450-500‹ C., until its weight remains constant. The zinc phosphate may have been obtained by tempering an acid zinc phosphate having a ratio of P 2 O 5  : ZnO in the range of from 0À35 : 1 to 1 : 1, or a zinc diphosphate having a ratio of P 2 O 5  : ZnO in the range of from 0À5 : 1 to 1 : 1 at a temp. in the range 450‹ to 850‹ C., preferably 500-600‹ C. for the acid phosphate and 450‹ to 550‹ C. for the diphosphate, until their weight remains constant. The magnesium phosphate may have been obtained by tempering an acid magnesium phosphate having a ratio of P 2 O 5  : MgO in the range of from 0À35 1 to 1 : 1 for a period of from about half-an-hour to 3 hours at a temp. in the range 230-300‹ C., preferably 230‹ to 280‹ C. The water glass cement may contain from 1 to 10% by weight of the tempered phosphate.
Patent GB-1294558-A (GB)
Title: Copper base alloys
Inventor: GOLDMAN ALAN JAY
IPC: C22C9/04
Filed: 1970-08-28
Abstract: 1294558 Copper base alloy OLIN CORP 28 Aug 1970 [17 Oct 1969] 41571/70 Heading C7A An alloy with a substantially white colour in the rolled condition, comprises:- the balance being Cu; and has a single phase alpha structure with an U.T.S. of 105-130 k.s.i. in the 50-70% cold rolled condition and 55-80 k.s.i. as annealed. The alloy melt is poured into the mould with a pouring temperature below 1100‹C. and the ingot hot rolled at 840-480‹C. In making the alloy the Mn is submerged in the melt by the weight of subsequently added Cu or Cu-Ni. The process is also claimed in respect of alloys containing, apart from impurities, only the Cu, Ni, Mn and Zn of the above composition.