baber/WOPTO huggingface dataset:
Patent GB-1250888-A (GB)
IPC: F16D55/226
Filed: 1967-12-14
Abstract: 1,250,888. Hydraulic brake actuators; dual circuits; spot-type disc brakes. GIRLING Ltd. 28 Nov., 1968 [14 Dec., 1967], No. 56848/67. Headings F2E and F2F.  An hydraulic brake actuator comprises a cylinder containing a pair of pistons having annular skirts which are directed towards each other and are each slidingly sealed over a common sleeve formed separately from the cylinder, the sleeve dividing the space enclosed within the cylinder between the two pistons into two separate pressure chambers having separate inlets for the supply of hydraulic fluid. The invention is shown as applied to a disc brake for a vehicle. A fixed body member 10, Figs. 1 and 5, located on the inboard side of a brake disc (not shown) to which friction pads 22, 24 may be applied, is provided with mounting lugs 16, 18, Fig. 5. The body member 10 has on opposite sides a pair of grooves 12 which guide a yoke 14 for sliding movement, the yoke being supported in the grooves by leaf-springs 28. The body 10 has a cylinder bore 30 which accommodates a pair of opposed cup-shaped pistons 32, 34, the skirts of which are directed towards each other. A sleeve 36, formed separately from the cylinder and slidably received within the skirts of the pistons defines a central cylindrical pressure chamber 42 and a peripheral annular pressure chamber 40. The sleeve 36 is restrained against axial movement relative to the cylinder by a pin (38, Fig. 2, not shown), extending radially inwardly from the body 10, or by an extension 50, Fig. 3, of a bleed screw 48 in a bleed port 46. The peripheral chamber 40 is fed through a pressure inlet port 44 provided in the body 10, while the central chamber 42 is fed by a pressure inlet port 58, Figs. 1 and 5, formed in a boss 62 of piston 32. A bleed port 60 is provided in another boss 64. The bosses, with two other smaller ones, are formed in the inboard end of piston 32 by transverse slots 54, 56, the horizontal slot 56 receiving the adjacent part of the yoke 14 and the vertical slot 54 receiving a pin 66 extending through the yoke. The connection of the yoke to piston 32 is completed by the provision of nylon bushes 68 and 70, the shanks of which surround pin 66, and the heads 72, 74, respectively, of which are received in parts of the slot 56 (see also Fig. 1). The yoke is biased to the right in Fig. 5 (in the direction away from the leading side of the brake) by a spring-loaded plunger 78, thus taking up any free movement which would otherwise tend to cause impact on forward braking. Piston 34 acts directly on friction pad 22, while piston 32 acts on friction pad 24 through the yoke 14. The friction pads are slidably suspended from a U-shaped pad-retaining pin 26 carried by the body member 10. The separate pressure supply systems, e.g. from a tandem master cylinder, which are connected to the separate pressure chambers, normally operate in unison. In the event of failure of either pressure system, the other will be operable to apply the brake.
Patent GB-1251200-A (GB)
IPC: E04G25/06
Filed: 1968-12-03
Abstract: 1,251,200. Shore for temporary shutter. SYMONS MFG. CO. 3 Dec., 1968, No. 57417/68. Heading E1S. A shore 12 for supporting stringers of a temporary shuttering on which a floor is moulded comprise telescopic sections 40, 42 and an upper section 51 which is not rotatable and has a screw threaded end 52. A shore head 44 fits over and engages screw thread 52. The tubular part of head 44 is closed by a bearing plate 60 through which a rod 62 extends and is fixed to the head by pin 64 such that when the rod is rotated the head 44 is rotated. The rod is housed in rectangular member 69 which in turn is closed by removable filler plate 70 which supports the shuttering. A support cradle 46 consisting of a tube with two opposed stringer supports 76 slides over the head 44 and has two positions a raised one and a lowered one the latter being when it rests on shoulders formed by plates 106 which are welded to head 44 and the raised position being when removable spring clip 92 is inserted between the shoulder and the cradle. The stringer support arms of cradle 46 are provided with lugs 84 to engage corresponding holes in stringer 14 and also lugs 90 are provided on housing 69 which correspond to slot 91 on the stringer.
Patent GB-1252932-A (GB)
IPC: D04H1/00
Filed: 1968-08-21
Abstract: 1,252,932. Non-woven resin-bonded fabrics. VITAFOAM Ltd. 20 Aug., 1969 [21 Aug., 1968], No. 39954/68. Heading B5N. [Also in Division D1] A plurality of layers of fibre, one or more of which have been impregnated with resin in the form of a very fine low velocity mist produced by deflection of a high velocity spray, are formed into a bath and the resin is cured. The fibres, resins and resin/fibre ratios of different layers may be the same or different. Some layers may be of non-weldable fibres, the rest of weldable fibres. An individual layer is impregnated by passage below and away from the variable opening of a mist-producing chamber 29, the opening being partially or completely closable by a plate 36 (shown closed) and resin being supplied through a conduit 27 to a plurality of nozzles 30 (one being shown), deflected by a channel 40, passed through the opening and allowed to fall on the layer. The channel is pivotally mounted on a pair of quadrant plates 39 themselves pivotally mounted on the end walls 41 of the spraying chamber. The conduit 27 may be pivotally carried by the quadrant plates.
Patent GB-1256546-A (GB)
IPC: C08J5/06
Filed: 1969-11-18
Abstract: 1,256,546. Tyre cord. KOPPERS CO. Inc. 18 Nov., 1969 [29 Nov., 1968], No. 56481/69. Heading D1P. [Also in Division C3] Polyester cords are dipped in a composition comprising a rubber latex and tris (monohydroxybenzyl) phenol. The preferred rubber is a butadiene-styrene-vinyl pyridine terpolymer and the composition may also contain formaldehyde. The dipped and dried cords are bonded to a vulcanisable rubber by heating.
Patent GB-1256562-A (GB)
IPC: B61J3/12
Filed: 1969-02-18
Abstract: 1,256,562. Wagon handling systems. NIPPON KOKUYU TETSUDO. 18 Feb., 1969 [23 Feb., 1968], No. 8849/69. Heading B7L. A wagon handling system comprises wagon carrying rails 1 blanking a reaction plate 3 along which a wheeled bogie A is driven by an induction motor 6, the bogie A having control arms 7, 7a adapted to be extended over the rails 1 to intercept wagonwheels and exert a braking or driving force thereon, and the operation of the bogie being controlled by a device 15 which receives signals generated by contact between a control arm 7, 7a and a wagon wheel. Tha control arms 7, 7a are mounted on supporting arms 9, 9a pivoted on the bogie by actuating arms 10, 10a connected to pistons 12, 12a. The motor 6 receives power from the reaction plate 6 via the support wheels 5 of the bogie, although guide wheels 4 which engage guide rails 2 may also be used to pick up power. In use, a wagon approaches a stationary bogie from the right of Fig. 1 and pivots the arms 7a against the action of springs 8a. The control device 15 therefore activates the motor 6 and the bogie A is accelerated. The control device 15 also extends the arms 7 over the rails 1 to intercept the leading wheels of the wagon, whereupon the motor 6 applies braking to slow the wagon down prior to the arms 7 being retracted to release the wagon. The bogie can also be used to push sorted wagons on to a composition track.
Patent GB-1258382-A (GB)
IPC: H01L21/8228
Filed: 1970-01-08
Abstract: 1,258,382. Semi-conductor devices. SIGNETICS CORP. 8 Jan., 1970 [16 Jan., 1969], No. 933/70. Heading H1K. Complementary bipolar transistors are formed in a dielectric-isolated integrated circuit by providing a P-type (e.g. B doped) diffused region 17 in a surface 13 of an N-type substrate 11, e.g. of Si, etching moats in the surface 13, preferably using an anisotropic etchant, so as to isolate the P-type region 17 laterally from the remainder of the substrate and similarly to isolate an N-type area which may contain an As or Sb doped N+ diffused region 19, forming an oxide coating 24 over the surface 13 including the moat surfaces, applying a support body 26, e.g. of polycrystalline Si, over the oxide coating 24, lapping the free surface of the substrate 11 down to expose the coating 24 at the apices of the moats so as to form isolated islands of semiconductor material, one of which is P-type and the other N-type, and using conventional planar techniques to form the NPN and PNP transistors in the N- and P-type islands respectively. Depending upon which of the two transistors is desired to have the optimum characteristic the order of the four base and emitter diffusion stages is varied. Optimization is attained by "trimming" the base width of the relevant transistor with a short additional heating period, the effect on the other transistor being minimized by arranging for it to have a deeper base region than the device being optimized. Other such transistors, or diodes, resistors or capacitors, may be formed in other islands of the same structure.
Patent GB-1264086-A (GB)
IPC: H01R13/64
Filed: 1970-11-13
Abstract: 1,264,086. Two-part couplings. AMP Inc. 13 Nov., 1970 [24 Nov., 1969], No. 54065/70. Heading H2E.  In an electrical connection unit (Fig. 5) individual connector blocks 16 are interconnected by suitably wired terminal pins 76, bush mounted 70 (Fig. 4) in an aluminium panel 68, the panel and each individual connector being detachably secured by screws to the frame 6 which may be mounted in a panel. Each connector 16, Fig. 4, comprises a metallic material case 44, and a series of sealing glands 40 having a skirt portion 42 and contacts 24 in a housing 20, crimped to wires 34 or flat conductors 34 at 32 and contacting the pin 72 of the interconnecting panel. Recesses 95 help stabilize pins 76 and interconnecting wiring 81 may be in the form of clip or wrap type wiring or printed circuit wiring. Sealing glands 57, 98 are provided and a locating skirt 53 with polarizing ribs 59 is included (Fig. 1). Screws 80, Fig. 6 (not shown) are retained in the plate 68 by circular clips 83 and are used to jack the interconnecting board free from the connectors. The housing 20 has a flared open end 28 (Fig. 4) for easy engagement of pin 72. Gaps 63 (Fig. 3) prevent "breathing" of the seal 42 due to air pressure variations when the connector is used in an aircraft. An additional circular type connector 18 may be employed with a corresponding interconnecting socket 54. In a further embodiment, Fig. 9 (not shown), the connector 16 is provided with a key (114) which locates in a key way (116) in the side frames 6.
Patent GB-1264902-A (GB)
IPC: C09D5/25
Filed: 1969-05-01
Abstract: 1,264,902. Coating wire. WESTINGHOUSE ELECTRIC CORP. I May, 1969 [21 May, 1968], No. 57974/70. Divided out of 1,264,901. Heading B2E. [Also in Division C3] Wire enamelling compositions contain a blocked poly(ester-urethaneisocyanate) P blended with polyester, polyester-amide, or poly (amide-imide-ester) resins, e.g. that of the Specification 1,264,901. Polymer P is derived from A an aromatic dicarboxylic acid or ester thereof; B a tris (hydroxyalkyl) isocyanurate; and C a diisocyanate; the molar ratio A:B:C is 1:2:4. Acid A may be dimethyl terephthalate and/or isophthalate; B may be tris (2-hydroxyethyl) isocyanurate; and C may be tolylene, dianisidine, diphenylether, or 4, 4'-diphenylmethane diisocyanate. The diester of A and B may be reacted with C, e.g. in excess cresylic acid; tetraisopropyl titanate may be present.
Patent GB-1265054-A (GB)
IPC: C07C45/28
Filed: 1969-03-10
Abstract: 1,265,054. cyano-phenylperfluoroalkane derivatives. MERCK & CO. Inc. 10 March, 1969 [13 March, 1968; 17 Feb., 1969], No. 30973/71. Divided out of 1,265,051. Heading C2C. Novel compounds of the Formula (I) in which n is 2 or 3, p is 0, 1, 2 or 3, A is a carbocyclic or heterocyclic ring of 5 or 6 atoms and each of X and X<SP>1</SP> is a hydrogen or halogen atom or a C 1-4  perfluoroalkyl, C 1-6  alkyl, C 1-4  alkoxy, C 1-4  alkylthio, C 1-4  alkylsulphonyl or C 2-8  dialkylsulphamoyl radical and more than one substituent may be present on each ring, may be obtained by treating a compound of the Formula (II) in which Hal is Br or I with a metal cyanide, optionally followed by hydrolysing the nitrile product to the carboxy compound, reducing the latter to hydroxy methyl with LiAlH 4 , halogenating the product to convert -CH 2 OH to -CH 2 Hal and treating the halomethyl compound with CN- to form the group -CH 2 CN, and optionally repeating the sequence once or twice to yield a compound having a 2-cyanoethyl or 3-cyanopropyl substituent. 2 - (α,α,#,# - Tetrafluorophenylethyl) - benzyl alcohol is obtained by reducing the corresponding benzoic acid with LiAlH 4 ; the product is treated with HBr to yield 2-(α,α,#,#-tetrafluorophenylethyl)benzyl bromide.
Patent GB-1266062-A (GB)
IPC: B43K1/08
Filed: 1969-03-21
Abstract: 1,266,062. Making ball-point pens; stamping. ETABS REGNAULT S.A. 21 March, 1969 [8 April, 1968], No. 14893/69. Headings B3A and B3Q.  A method of making a ball-point type writing tip includes turning a lip portion 5 inwardly around the ball B by applying high-frequency impacts of relatively low amplitude, which progressively deform the lip portion. The use of high frequency impacts, i.e. from about 12,000 impacts/minute to ultra-sonic frequencies, prevents distortion of the tip, especially when setting balls in relatively long type tips. The tool used may be actuated by compressed air, electricity or mechanical means and the shape of the tool can be used to determine -the shape of an ink chamber 4.
Patent GB-1267196-A (GB)
IPC: H01J47/12
Filed: 1968-04-03
Abstract: 1,267,196. lonization counters. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 8 May, 1969 [3 April, 1968], No. 16049/68. Heading H1D. The resistance to damage by γ radiation of a BF 3  counter is improved by subjecting the counter before use to a γ dosing of at least 10<SP>6</SP> rads supplied at a rate of at least 10<SP>5</SP> rads per hour with a polarizing voltage applied to the counter. Pulse height curves are provided (Figs. 1 and 2, not shown) indicating results obtained with a counter polarized at 2À4 kv. and subjected to a dosing rate of 1À5 x 10<SP>5</SP> rads per hour. The counter may be used in the control of fast nuclear reactors.
Patent GB-1295409-A (GB)
IPC: C30B13/00
Filed: 1971-04-19
Abstract: 1295409 Zone-melting SIEMENS AG 19 April 1971 [13 March 1970] 23684/71 Heading BIS In the production of a silicon mono-crystal rod, which was initially formed by deposition from the gaseous phase, by a floating zonemelting process, the use of high vacuum equipment is avoided, by carrying out the preliminary zone-melting stage in an atmosphere of pure hydrogen at sub-atmospheric pressure. Preferably, the molten zone is passed at least once, with the hydrogen at 100 mm/Hg. In the final zone-melting stage the hydrogen is replaced by another protective gas, such as argon at 1.05 Atms.
Patent GB-1296370-A (GB)
IPC: C07C201/16
Filed: 1969-12-30
Abstract: 1296370 Process for the preparation of nitroso- and nitro-phenols FRANCE ARMED FORCES MINISTER OF 30 Dec 1969 [31 Dec 1968] 63391/69 Heading C2C p-Nitrosophenols of formula in which the substituents R may be the same or different and each represents a (C 1-4 ) alkyl radical, n is 0, 1 or 2, with the proviso that when n is 1, alkyl substitution is in position 3 and when n is equal to 2, alkyl substitution is in positions 2 and 5, are prepared by nitrosating the corresponding alkali metal phenate with an alkali metal nitrite in the presence of mineral acid at a pH not exceeding 2À2 and a temperature not exceeding 10‹ C. These nitroso compounds may be converted into their nitro derivatives by treating their alkali metal salts with dilute aqueous HNO 3  at a concentration of 10-30% by weight at a temperature not exceeding 50‹ C.
Patent GB-1301342-A (GB)
IPC: F16H31/00
Filed: 1970-02-23
Abstract: 1301342 Pipettes MICROMEDIC SYSTEMS Inc 23 Feb 1970 [26 Feb 1969] 8600/70 Heading BIX [Also in Divisions F1 and F2] In a pipette for precise metering of very small amounts of liquid, the plunger 14h is moved by rotation of a ring 4 which acts via a ratchet mechanism to rotate a sleeve 15 carrying a nut 15a which engages a screwthread 14e of a member 14 carrying the plunger 14h, the stroke of the plunger in each direction being independently adjustable by graduated rings 3, 5 which control the effective strokes of the ratchet pawls. The angular travel of the ring 4 remains constant. The plunger 14h moves in a straight portion 7a of an inlet/ outlet tube 7. A peg 9c in a tubular handle 9 engages an axial slot 14d of the member 14 to prevent rotation of the latter. A housing 12, rigid with the handle 9 and having an end cover 13, contains the ratchet mechanism. The sleeve 15 carries ratchet wheels 21, 22 having oppositely directed teeth. Diametrically opposite pawls 23, 24 engageable respectively with wheels 21, 22 are carried by a ring 25 pivoted at 26 to an annulus 27 of U-shaped cross-section rotatably supported in the housing 12. Tongues 12A-D (Fig. 5) of the housing act as drag brakes on the annulus. Pins 29a, 29b on the annulus 27 are engageable with a stop 28 to limit rotation of the annulus. A radial pin 25a of the ring 25 extends through a slot 124 to engage the ring 4. Diametrically opposite axial pins 30, 31 of the ring 25 extend through holes 27b, 27c of the annulus 27 and are engageable with cams 37, 36 rotatable in the housing 12 and connected by radial pins 36a, 37a to the rings 3, 5 respectively. Sprung ball detents between the rings 3, 5 respectively. Sprung ball detents between the rings 3, 5 and fixed rings 8A, 8B retain the rings 3, 5 in their selected positions, which determine the angular positions of the cam ring 36, 37. As the ring 4 is rotated over its full travel, carrying with it the ring 25 and annulus 27, the cams 36, 37 control the rocking of ring 25 about pivot 26 relative to the annulus 27 to determine the angle over which a pawl is drivingly engaged with its ratchet wheel. Pawl 23 and cam 36 are involved in the suction stroke during clockwise movement (Fig. 2) of the ring 4, and pawl 24 and cam 37 in the discharge stroke during anticlockwise movement. Either stroke is adjustable in steps from zero to a maximum. To fill the syringe completely, the ratchet drive is bypassed, the syringe being supported on a strand 41, (Fig. 15) so that the sleeve 15 can be rotated by a knob 50 acting via gears 48, (51), 52, (40), the gear (40) being rigid with the sleeve 15 (Fig. 1).
Patent GB-1313017-A (GB)
Title: Tetrahydro-isoquinoline derivatives and a process for the manufacture thereof
Inventor: OSBOND J M
IPC: C07D217/04
Filed: 1970-11-30
Abstract: 1313017 2 - Aralkyl - 6,7 - dimethoxy - 1- methyl - 1,2,3,4 - tetrahydroquinolines ROCHE PRODUCTS Ltd 16 Nov 1971 [30 Nov 1970] 56702/70 Heading C2C The invention comprises compounds of formula and their acid addition salts, wherein R is C 1-6  alkyl or C 3-6  alkyl, R<SP>1</SP> is H or up to C 6  alkanoyl, and R<SP>2</SP>, R<SP>3</SP> are each C 1-6  alkyl, or R<SP>2</SP>-R<SP>3</SP> is -(CH 2 ) 3 -, (-CH 2 ) 4 - or These compounds are prepared by reacting 6,7- dimethoxy - 1 - methyl - 1,2,3,4 - tetrahydroquinoline (or its acid addition salt) with the corresponding alkyl/aryl ketone, reducing the intermediate ketone corresponding with the above formula in which CO replaces CHOR<SP>1</SP>, and if desired alkanoylating the alcohol of the above formula. Therapeutic compositions having analgesic and/or antitussive activity, and which also reduce intestinal motility, comprise compounds of the above formula; they may be administered orally or parenterally.
Patent GB-1317155-A (GB)
Title: Blanks and constructions made therewith
IPC: B65D5/36
Filed: 1969-06-03
Abstract: 1317155 Collapsible display devices STEVENS SECUNDA ASSOCIATES Ltd 3 Sept 1970 [3 June 1969] 28072/69 Heading G5C A collapsible, three-dimensional structure is made from the blank shown in Fig. 1, which may be of rigid or semi-rigid material. The blank comprises panels 2-5 and flaps 17, 18, 23, 24, the flaps having ears 21, 27 fitted with slots 34. The dotted lines are lines of weakening for folding the blank. All the folds are made in the same sense, except for those about lines 11, 12, and the blank assumes the shape of a cube, as shown in Fig. 2, the slots 34 held by a rubber band. In another embodiment (Fig. 9, not shown), the blank is modified to form a collapsible prism of triangular cross-section. In a further embodiment(Fig. 4, not shown), the blank is modified to take the shape of a motor van, and in further modifications the blank assumes the shape of a house, boat, tank, elephant, money box, etc.
Patent GB-1324074-A (GB)
Title: Apparatus for use with photographic enlarging apparatus
IPC: G03B27/58
Filed: 1969-09-29
Abstract: 1324074 Photographic enlargers M GOLD 29 Sept 1970 [29 Sept 1969 30 Jan 1970] 47662/69 Heading G2A An easel or platform 6 for use with a photographic enlarger rests on a support 4 which can be adjusted vertically, the support having a pair of diverging arms 5 on which the platform rests. The support 4 slides on guide rods 3 fixed to a base member 1, itself fixed to a baseboard 8. The height of the support above the baseboard can be varied by means of an adjustment screw 7. Thus the distance of an image formed on platform 6 from the enlarger lens can be varied, for focusing purposes, by rotating the screw 7.
Patent GB-1327034-A (GB)
Title: Development of photographic silver halide material
IPC: G03C8/06
Filed: 1969-10-27
Abstract: 1327034 Photographic development AGFAGEVAERT 2 Oct 1970 [27 Oct 1969] 52566/69 Heading G2C  An exposed photographic silver halide emulsion layer is developed by treating the layer with an aqueous alkaline solution in the presence of a hydroxylamine developing agent and a bis(pyridone) azine or salt thereof substituted in the 1-positions by alkyl or substituted alkyl groups and preferably having the formula: - where each of R 1  and R 2  is alkyl or substituted alkyl, each of n and n' is 0 or 1 and each of Z 1  and Z 2  completes a pyridone or substituted pyridone nucleus. Hydroxylamine developing agents include hydroxylamine, N-alkyl and N, N-dialkyl hydroxylamines and heterocyclic hydroxylamines such as N-hydroxy-morpholine. The bis(pyridone)azine and developing agent may be in the developer solution or in the photographic material. The development may form part of a silver salt diffusion process.
Patent GB-1330742-A (GB)
Title: Keyboard encoding arrangement for a telegraphic machine
IPC: H04L13/16
Filed: 1971-08-05
Abstract: 1330742 Keyboards CREED & CO Ltd 5 Aug 1971 36835/71 Heading G4H In a telegraphic keyboard piezo-electric transducers are mounted in resilient electrically insulating material and selectively energized to give a coded electrical output by respective codebars. In Fig. 1 in response to depression of a key lever 1 having a unique pattern of notches, all code-bar actuators (not shown) are energized, only those code-bars beneath notches in the operated key lever, e.g. 3 and not 2, move to operate associated transducer 5. Each transducer comprises a piezo-electric crystal disc 6 sandwiched between metal cylinders and 8, the anvil 7 being smaller than the backstop 8. An array of transducers is enclosed in electrically insulating resilient material, e.g. rubber, in a housing, through which the projections on the metal cylinder 7 protrude. The resilient material may be in the form of plates (Fig. 2, not shown) or alternatively may in the construction of the keyboard be poured around the transducers and allowed to set.