baber/WOPTO huggingface dataset:
Patent GB-1188693-A (GB)
Title: Device For Washing Tanks
Inventor: MARCHAM JAMES SYDNEY
IPC: B05B3/16
Filed: 1967-09-07
Abstract: 1,188,693. Cleaning tanks. SAMUEL HODGE & SONS Ltd. 31 July, 1968 [7 Sept., 1967], No. 41000/67. Heading A4F. [Also in Division B2] A device for washing tanks comprises a rotary turret 10 carrying a pair of nozzle heads 13, 14 mounted for rotation about a common horizontal axis and having nozzles A, B, C for directing jets of washing fluid in different directions, and having a drive system powered by the washing fluid to rotate the turret and drive the nozzle heads, the drive system being constructed to oscillate the nozzle heads over a predetermined angular range about the horizontal axis so that some of the nozzles discharge their jets in a direction below the horizontal, the nozzles being so arranged that those on one head can occupy a position symmetrical about a vertical plane through the axis of rotation with respect to the nozzles on the other head, the driving system including friction clutch means permitting departure from said symmetry operable in conjunction with limit stop means to cause assumption of said symmetry when the device is in operation. Preferred clutch means comprises gear sector rings 39 engaging the walls of the nozzle heads through O-rings 40 which are pressurized by the washing fluid by passages 41, 42 during operation. The stop means may comprise external projections on the nozzle heads for engagement with surfaces on the turret. Oscillation of the nozzle heads is effected by eccentric pin 26 carried by rotatable disc 25 and engaging groove 27 in radial arm of member 28 carrying bevel gear 29.
Patent GB-969852-A (GB)
Title: Method and apparatus for stretching polymeric materials
IPC: B29C55/16
Filed: 1960-11-29
Abstract: 969,852. Stretching films. FMC. CORPORATION. Nov. 29, 1960 [Jan. 22, 1960], No. 41020/60. Heading B5B. A film 11 consisting of organic thermoplastic polymeric material and having a web 13 of uniform thickness and beaded longitudinal edges 15 is continuously stretched in an apparatus (Figs. 1 to 3) in which a pair of rolls 17 and 19 guide the film to a pair of laterally spaced parallel metal guides or tracks 21 adapted to slidably engage with the film beaded edges 15. The film 11 is advanced relative to the tracks 21 by a metering device 23 and is advanced between a pair of diverging metal tracks 25 by a pair of take-up rolls 31 and 33 driven at a higher peripheral speed than the metering device 23 to stretch the film longitudinally. The tracks 21 are secured to elongated closed ducts 35 through which a heating medium may be circulated. Heating panels 39 are adjustably mounted above and/or below the path followed by the film between the tracks 21 for heating the film web 13 to a temperature above that of the beads independently of the means for heating the beaded edges of the film. The metering device comprises a frame 41 on which are rotatably mounted a pair of shafts 43, 45 to which are fixed bead-engaging peripherally grooved rollers 47, 49. These rollers are driven in opposite directions at equal and uniform peripheral speeds. To facilitate lacing up of the apparatus the shaft 43 is resiliently mounted by means of journal blocks 55 slidably mounted in the frame 41. Springs 59 adjustable by screws 63 urge the rollers 47 against the film beads 15 with sufficient force to grip the beads firmly. The film is both longitudinally and transversely stretched during its passage between the guides 25, which may include endless conveyers. In addition to or instead of the rolls 47, 49, a series of metering rollers may be disposed at spaced intervals along the entrance portion or the entire length of each of the stretching tracks. In this case each successive pair of rollers may be driven at a slightly higher speed than the immediately preceding pair of rollers to achieve a progressive longitudinal stretching of the film as it travels between the diverging tracks. In two other embodiments of the apparatus of the invention the shafts on which the rollers are mounted are at rightangles to the plane of the film. Specification 969,005 is referred to.
Patent GB-1128566-A (GB)
Title: Arrangement for controlling the movement of a machine table
Inventor: GOBEL GOTTFRIED
IPC: B23Q15/00
Filed: 1966-09-14
Abstract: 1,128,566. Grinding. MIKROMAT DRES. DEN VEB. 14 Sept., 1966, No. 41026/66. Heading B3D. An arrangement for controlling the movement of a machine table for a profile grinding machine comprises a Ferraris motor 10 which drives the table 2 through a ball screw 6 and gear train 8, and a device 9 driven from the gear train for measuring the position of the table. The table is movable along a guideway on a cross-slide 1 which has a flange 3 for a bearing 4 for the ball screw 6. The screw engages a nut 15 on the table 2 and is mounted in an attachment 7 containing the gear train 8 between the screw 6 and motor 10. The measuring device consists of two sets of contact discs 11, 12 and a potentiometer which are driven from the gear train. As the screw is rotated by the motor to move the table, the device 9 measures the movement of the table. Bellows 16, 17 protect the guideway from dust. The cross-slide 1 may be movable by a similar arrangement.
Patent GB-1153929-A (GB)
Title: Improvements in or relating to A Sewing Machine Speed Control Device
IPC: H02P7/295
Filed: 1967-09-08
Abstract: 1,153,929. Measuring speed electrically. MEFINA S.A. Sept. 8, 1967 [Sept. 23, 1966], No. 41051/67. Heading G1N. [Also in Divisions G3 and H2] A sewing machine is driven by a series motor M through a notched belt 9 bearing iron cleats 16 at regular intervals to form part of a tachometer generator 10, whose stator comprises soft iron parts 11, 12, a permanent magnet 13, and a winding 14. The amplitude and frequency of the voltage induced in the winding 14 is proportional to the speed of the machine. The motor M is supplied from A.C. lines a, b, through controlled rectifier D2 and diode D1, the rectifier being triggered when the voltage across capacitor C is sufficient to break down a Zener diode D3. The capacitor is shunted by transistor T having the tachometer generator 10 in its base control circuit. If the machine tends to over-speed, the transistor becomes more conductive to discharge the capacitor at a greater rate, so retarding the firing-point of the rectifier D2. This reduces the motor current and restores the speed to a set value. Similarly, the motor current is increased to allow for a drop in speed. In a modification, the cleats 16 are formed as permanent magnets constituted by synthetic resin containing a magnetic powder, the magnetic circuit located in proximity to the belt being constituted of soft iron. The control circuit for the motor may be adapted to respond to frequency variations of the tachometer voltage, the control circuit comprising a pulse counter.
Patent GB-1201925-A (GB)
Title: Water-insoluble bis-styryl dyestuffs and processes for their manufacture
IPC: D06P3/34
Filed: 1967-09-08
Abstract: 1,201,925. Bis-styryl dyestuffs. CIBA Ltd. 8 Sept., 1967 [9 Sept., 1966], No. 41098/67. Heading G4P. The invention comprises bis-styryl dyestuffs of the general formula wherein R 1  and R 2  are optionally substituted alkyl which may form a ring with A 1  and A 2  respectively, R 3  is optionally substituted alkylene, R 4  is optionally substituted alkylene, Y 1  and Y 2  are CN, carbalkoxy, carbonamide or aryl-sulphonyl, A 1  and A 2  are optionally substituted p-phenylene groups which may be substituted; and Z is a direct bond or a bridging group free from -SO 2 - and contains at least one hetero atom when A 1  and/or A 2  are unsubstituted or in which the grouping -R 3 -Z-R 4 - represents -CH 2 -C 6 H 4 -CH 2 - (para). Z is preferably -O-, an imino group or wherein X<SP>1</SP> is -O-, a sulphur atom or an imino group and Z<SP>1</SP> is a diacyl residue of an organic bifunctional acid. They are prepared by (1) reacting a dyestuff of the formula or wherein X 1  and X 2  are groups containing at least one H atom, R 1 , R 2 , R 3 , R 4 , A 1 , A 2 , Y 1  and, Y 2  have the values given above with a bifunctional compound free from -SO 2 - groups, (2) condensing a dialdehyde of the formula or an aldimine thereof in a molar ratio of 1: 2 with a cyano compound NCCH 2 Y or (3) reacting a monostyryl dyestuff of general formula or with a compound Y1 1 -(R 3 ) n-1 -Z-(R 4 ) n-1 -Y<SP>1</SP> 2  in which n is 1 or 2; Y<SP>1</SP> 1  and Y<SP>1</SP> 2  are Cl, Br, I, or -CO halogen when n is 2 or wherein Y<SP>1</SP> 1  and Y1 2  together with Z represent a diepoxy compound capable of additive reaction when n is 1 or (4) oxidizing compounds of the general formula or to form a dyestuff wherein Z is -S-S-. The dyes give greenish yellow shades on cellulose acetates, polyesters, polyolefins and polyacrylics.
Patent GB-1183739-A (GB)
Title: Improvements in Display Devices.
Inventor: GILES PETER MICHAEL
IPC: G01R13/20
Filed: 1967-09-08
Abstract: 1,183,739. Measuring colour photo-electrically. P.M. GILES. Sept.6, 1968 [Sept. 8, 1967], No.41164/67. Heading G1A. The colour of printed matter is monitored by generating signals indicative of the densities of component colours and using the signals to deflect a cathode-ray-tube spot to a position indicative of the colour combination on a colour diagram. Test strips 21, Fig. 2, on printed matter 20 are scanned by light from a lamp 28 using a condenser lens 29 and rotating mirror 26. The reflected light is received through filters by photo-cells 23, 24, 25, and their outputs are stored at 35, 36, 37. At the end of a scan the outputs are read out to resolving circuitry 39 which produces X and Y signals to deflect the spot of cathode-ray-tube 43 to a point on the chosen colour diagram corresponding to the scanned colour, where the spot is brightened by generator 45. Calibration potentiometers 47 are provided for centring the spot when reference signals are applied at 46. In front of the tube 43 is an edge-lit graticule in the form of the Graphic and Allied Trades Federation's Colour Hexagon, Subtractive Triange or Colour Circle.
Patent GB-1192795-A (GB)
Title: A Packer for Use in a Well Bore or the like
IPC: E21B41/00
Filed: 1967-09-08
Abstract: 1,192,795. Well packers. DRESSER INDUSTRIES, Inc. 8 Sept., 1967 [26 Sept., 1966], No. 41226/67. Heading E1F. A retrievable bridge plug for a well bore has a packer assembly 145 on a mandrel 25, expandable wall grips 101 and 181 above and below the packer assembly and a sleeve valve 75 at the top of the mandrel for blocking the central bore 69 of the mandrel. The plug is lowered into the well on a tube string 2 with a connector 3 which has J-slots 16 engaged by gudgeon pins 38 on the mandrel. The connector also engages a flange 80 on the valve 75 to hold it open, i.e. to align the ports 33 in the mandrel wall with the apertures 79 in the valve, but when the connector disengages collets 17 in the connector engage pads 82 to lift and close the valve. The pads are spring loaded to retract into a recess 30, to enable the connector to be disengaged from the mandrel. The packer assembly 145 comprises sleeves 129, 150 which are moved relatively to expand the packing rings 146 against the bore wall. The assembly also has tapered expander elements 112, 157 which engage the grips 101, 181 to expand them against the wall. The upper grips are mounted on a setting sleeve 90 resiliently mounted on the mandrel, and the lower grips are mounted on a recovery sleeve 158 located on the mandrel by gudgeon pins 162 and J-slots 65 (also in Fig.VI, not shown). The plug is set by rotating and lowering the mandrel 'so that the J-slots 65 moves past the pins 162 until the pins are in the upper part of the J-slot (shown in broken lines). As the mandrel is lowered the setting sleeve 90 enters the chamfered part 114 of the upper expander element 112, which is segmented, and separates the segments'. The upper grips 101 then engage the element 112 and are expanded against the wall of the bore. The lower J-slot has a circumferential extension to form, an abutment by which the mandrel can be raised' to expand the lower grips 181 against the wall of the bore. The connector 3 is then disconnected, closing the valve 75. When the mandrel is lowered, a seal 140 on the mandrel engages the inner surface of the packing assembly sleeve 129 and an abutment 143 immediately below the seal engages an abutment 133 on the sleeve so that fluid passageways by-passing the packing are closed, and so that a downwardly acting pressure differential is transmitted to the sleeve to expand the packing material against the wall of the bore. An upwardly acting pressure differential is transferred to the packing material through abutments 161 and 155 which are also in contact. The plug is retrieved by reversing the above operations, the grip of the upper grips 101 being broken when the setting sleeve 90 is retracted from within the element 112.
Patent GB-937977-A (GB)
Title: Improvements in partial acetylation of cellulose
IPC: C08B1/02
Filed: 1961-11-17
Abstract: Non-catalytic acetylation of cellulose fibres, with acetyl contents up to 30%, can be obtained by reacting the fibres simultaneously at 135 DEG  to 200 DEG C. or successively at 135 DEG  to 280 DEG C. with acetic acid and acetic anhydride under anhydrous conditions. The fibres can be made into paper sheets.
Patent GB-1241603-A (GB)
Title: Seaming process, seaming tape, and process for preparing the same tape
Inventor: BURGESS CHARLES DONALD
IPC: A41D27/24
Filed: 1968-08-29
Abstract: 1,241,603. Carpet seaming tape; seaming non- metallic sheet material. GIFFEN-BURGESS CORP. 29 Aug., 1968, No. 41340/68. Headings B5K and B5N. [Also in Division A4] A carpet seaming tape comprises a barrier web, a joining web which is formed of discrete elements and having interstices between said elements, a layer of hot melt adhesive (HMA) which weighs at least 0À12 oz. per foot of tape, and common means, suitably stitching, stapling, clamping or the adhesive, for securing the joining web and the HMA layer to one side of the barrier web. The HMA layer may lie on top of the joining web or between it and the barrier web but it is preferred that the joining web is embedded in the adhesive layer. The margins of the adhesive layer may be spaced inwardly from the margins of either or both of the webs. The HMA is a bonding agent, preferably containing a plasticizer, which achieves solid state and strength by cooling and should preferably form a tacky melt at 200-400‹ F. and be hardened at 120‹ F. The joining web is preferably constructed of glass fibres but sisal, jute and linen may be used. The barrier web may be constructed of creped paper, aluminium foil, densely woven textiles or cellulose films. Tapes of the present invention may be made by laying a joining web over a barrier web together with a slab or strip of HMA of at least 1/16 inch thick. The HMA may be rolled or extruded at the time of web layering or a rolled or extruded slab may be used. Alternatively, the joining web may be embedded in HMA by pouring, extrusion or rolling. Carpets may be seamed by placing the tape underneath the edge zones of two abutting strips of carpet, separating the abutting edge zones, advancing a heating device, e.g. a gridiron between the separated edge zones to melt the adhesive, returning the edge zones to abutment and applying sufficient pressure to the face of the carpet to cause the molten adhesive to flow and coat the back of the carpet.
Patent GB-1207013-A (GB)
Title: Antenna amplifier
IPC: H03F1/34
Filed: 1968-08-29
Abstract: 1,207,013. Antenna amplifier. SABA SCHWARZWALDER APPARATE - BAU - ANSTALT AUGUST SCHWER SOHNE G.m.b.H. 29 Aug., 1968 [21 Oct., 1967], No. 41388/68. Heading H3T. An antenna 8 is coupled to an amplifier 9 by a negative resistance circuit comprising an amplifying element such as a transistor 1 connected as an oscillator but prevented from oscillating by negative feedback. The negative feedback is provided by emitter resistors 6, 7 of a high value, which stabilize the working point of the transistor 1, and a capacitive voltage divider 4, 5 improves stability. A transformer 2 has its primary connected to the collector of transistor 1 and is tuned to the received frequency, the secondary providing the effective negative resistance connected between the antenna and the amplifier 9. The stabilizing feedback of transistor 1 is arranged to be varied as the tuning is changed, to maintain uniform feedback over the tuning range. The negative resistance RT may be arranged (Fig. 2, not shown) in parallel with the amplifier 9 input. The common base transistor of the amplifier 9 has a high emitter resistance for stability, and a tuned transformer couples its collector to a receiver (11). The negative resistance circuit is said to effectively increase the antenna absorption surface area.
Patent GB-952369-A (GB)
Title: Improvements in or relating to electrical connectors and electrical assemblies employing the same
Inventor: CLEWS ANTONY BRASHER
IPC: H01R24/00
Filed: 1960-12-01
Abstract: 952,369. Two-part couplings; direct connections between conductors. UNITED-CARR FASTENER CORPORATION. Nov. 23. 1961 [Dec. 1, 1960], No. 41418/60. Addition to 811,989. Heading H2E. The connector of the parent Specification is modified in that the ears which secure leg 3 of each contact to the panel-like member 1 permit leg 3 a limited amount of free movement perpendicular to its axis. Portion 5a of ear 5 is slightly longer than the thickness of panel 1 and leg 3 extends forwardly at a small angle to the adjacent face of the panel so that it can flex about ear 6 which clamps it to the panel. The legs 2 of the contacts have lugs 7 or 9 alternately as described in Specification 843,652 for insertion into apertures in a second printed circuit panel to make contact with its circuit. Reference has been directed by the Comptroller to Specification 843,652.
Patent GB-970407-A (GB)
Title: Writing instrument
IPC: B43K5/18
Filed: 1961-11-21
Abstract: 970,407. Cartridge reservoir marking pens. DAVID KAHN Inc. Nov. 21, 1961 [July 26, 1961], No. 41605/61. Heading B6P. Nib section. -A nib section 15 of a cartridge reservoir marking pen comprises a holder 17 having a bore 20, a writing tip 24 of an absorbent material such as felt slidably mounted in the bore, a valve member 26 having an upwardly flaring thin annular wall valve plug 28 of a resilient synthetic plastic material such as nylon, and a spring 34 biasing the valve plug 28 toward a valve seat 23 in the bore of the holder. A rearward pressure on the writing tip 24 forces the valve plug 28 away from the valve seat 23 and allows ink to flow to the tip 24. A bush 35 is tightly fitted into the upper end of the holder 17 and serves to guide the valve member centrally within the bore 20. Cartridge reservoir.-The pen barrel 16 is of the replaceable cartridge type. The ink is normally sealed within the barrel or reservoir 16 by a sealing bush 47 force-fitted into the forward end. When fitting a new reservoir, the nib section 15 is screwed into the reservoir 16 (Fig. 2) and a piercing extension 37 of the bush 35 cuts through the periphery of an operable partition 52. Cap and sealing arrangements.-A cap 11 is provided with an inner cap 54 comprising an annular shoulder 56 and a blind bore 55. When the pen is inserted within the cap, the forward extremity 57 of the holder 17 engages the annular shoulder 56 so that the writing tip 24 is sealed within the bore 55, thereby preventing evaporation of the ink. Bushes 47 and 35, valve member 26 and the inner cap 54 are all of synthetic plastic material such as nylon, which because of its yielding nature, provide fluid light seals at the abutting edges and prevents undesirable leakage of ink. The reservoir 16 and the holder 17 are of synthetic plastic material such as cellulose acetobutyrate. 'In other embodiments (not illustrated) the cross-section of certain components of the pen, such as the writing tip 24 and the valve member 26 need not necessarily be circular. U.S.A. Specifications 1,867,467 and 2,250,444 are referred to.
Patent GB-1036043-A (GB)
Title: Hammer piston for a pressurized-medium-driven hammer drill
IPC: B25D17/06
Filed: 1964-10-12
Abstract: 1,036,043. Percussive drills. H. F. WYSS. Oct. 12, 1964 [Oct. 15, 1963], No. 41620/64. Heading B4C. A hammer piston 33 for use with a compressed-air-driven hammer drill comprises a piston head 45 having a neck portion 41 formed, at least along part of its length, with an entrainment portion adapted to engage with and rotate a tool holder 14, the cross-sectional shape of at least the entrainment portion of the neck being non-circular such that a tangent at any position of the periphery of the crosssection always extends outside the surface without intersecting it. The shape of the crosssection may have curved surfaces, Fig. 5a (not shown), or a square having bevelled corners, or elliptical, oval or of triangular shape having rounded corners.
Patent GB-1162182-A (GB)
Title: Energy Projecting and Scanning Apparatus
Inventor: AVAKIAN EMIK A
IPC: H05K3/02
Filed: 1966-09-19
Abstract: 1,162,182. Treating the brain. BUNKERRAMO CORP. 19 Sept., 1966, No.41785/66. Heading A5R. [Also in Divisions G3 and H1] A programme-controlled laser beam post. tioning system, see Division G2-G3, wherein a narrow pencil beam of electromagnetic radiation is moved repeatedly round a closed path such configuration that the beam constantly intersects a preselected point, is used to irradiate brain tissue. As shown. Fig. 6 three ,beam scanning units 12, secured to a supporting frame 10, are attached to the head of a person who carries on his back a laser beam generating equipment 55. The units 12 and equipment 55 are interconnected by waveguides 27. The beam positioning signals for the units 12 are sup plied through a cable 56. At .the point of attachment of each unit 12 the shell 50, Fig. 5, is provided with a surgical aperture 51 in which is disposed a non-metallic plate 52 which is chemically inert and transparent to the beam of electromagnetic radiation. The curve of the plate is the converse to that of the skull to which it is bonded. The base 53 of the scanning unit 12 is attached by screws 54.
Patent GB-1248332-A (GB)
Title: Improvements in or modification of apparatus for producing an ion beam
IPC: H01J49/12
Filed: 1969-08-22
Abstract: 1,248,332. Ion sources. BOHLER & CO. A.G. GEB. 22 Aug., 1969 [22 Aug., 1968], No. 41922/69. Heading H1D. The ion source described in Specification 1,176,257 in which a conical or disc-shaped gas discharge is set up between a rod-shaped electrode and a tubular electrode into which the rod-shaped electrode extends, the gas to be ionized being supplied through a conduit into the tubular electrode and the two electrodes being constantly or intermittently supplied with opposite potentials, is provided with counter-electrode of polarity such that ions of opposite charge with respect to the counterelectrode are extracted from the tubular electrode. The counter electrode may, if appropriate, be electrically connected to the tubular electrode.