baber/WOPTO huggingface dataset:
Patent GB-1383346-A (GB)
Title: Filling devices
IPC: B67C7/00
Filed: 1972-04-05
Abstract: 1383346 Filling apparatus MATHER & PLATT Ltd 27 March 1973 [5 April 1972] 15675/72 Heading B8T A rotary table filling machine is characterized by a capillary passage in the nozzle of each filling unit which sucks back any drips as the piston commences its suction stroke. Filling unit.-Fig. 4 shows the suction stroke of the filling unit 21 with liquid being transferred into the cylinder 40 from the receptacle 20 via valve port 50. For the discharge stroke a valve 48 is rotated 90 degrees by means of arm 52 to close an inlet port 50 and to connect the cylinder 40 to the nozzle 54 via ports 46, 49, 47. Liquid passes through slots 63 and causes the nozzle outer part 56 to move downwards relative to the nozzle inner part 55 against the spring 60 to open the outlet and allow discharge. When the piston has passed BDC the spring 60 moves the nozzle outer part 56 upwards and closes the outlet except for the capillary passage 62. Further piston movement before the valve 48 changes over causes drips to be sucked back through the capillary passage 62. Rotary machine.-The liquid receptacle 20 supports a number of filling units 21 on its periphery, the whole being powered to rotate with main star wheel 26 which locates the containers being filled. The empty containers are led to the machine by conveyer 24 and star wheel 25 synchronized with the machine and after filling are directed on to conveyer 27. Surrounding the receptacle 20 is a ring 30 adjustable vertically on three posts 31. Attached to ring 30 at pivots 32 is cam ring 36 which provides the vertical motion of rollers 42 and hence pistons 41, causing the cylinder 40 to fill over 180 degrees of machine rotation and discharge into the containers over the other 180 degrees. A second ring 37 holds the rollers 42 in contact with the cam ring 36 during their downstroke. The cam ring 36 is also attached to the ring 30 at a point opposite the pivots 32 by a threaded pillar which allows the throw of the cam to be adjusted. At 39 the rollers 53 run on to an arcuate cam 74 with a vertical lift and the resulting rotation of the arm 52 causes the valve to change from the discharge position to the charge position.  180 degrees from 39, the moving container 22 operates air valve 67 via arm 64 and links 66. This causes air cylinder 68 to extend and place roller 70 at the end of upper cam strip 72. With further rotation of the machine, roller 53 is directed by roller 70 to the under side of the upper cam strip 72 which then causes the valve 49 to rotate to the discharge position. In the absence of a container, roller 70 is retracted and roller 53 passes over the top of the cam strip 72 so that the valve is not operated and no discharge takes place.
Patent GB-626308-A (GB)
Title: Improvements in or relating to sub-aqueous echo sounders
IPC: G01S1/72
Filed: 1946-05-23
Abstract: 626,308. Subaqueous audible and like signalling apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., TWATT, J., and BANKS, G. B. May 23, 1946, No. 15696. [Class 118 (ii)] [Also in Group XL (c)] A subaqueous echo-sounder comprises a condenser, the discharge circuit of which includes the anode-cathode space of a triggered mercury vapour tube and the operating winding of a magneto-strictive transmitter, and means for applying a short positive pulse to the triggering electrode to cause said tube to discharge the condenser through the winding with a uni-directional pulse of current. The discharge tube has a mercury pool cathode, an anode, and a triggering electrode very close to but insulated from the surface of the mercury pool. Upon closing a manually or automatically operated contact 12, the condenser 9 discharges through the transformer 8 and raises 'the potential of a trigger electrode 7 of a mercury vapour tube 13 which may be of the kind described in Specification 608,589, [Group XL (a)]. The tube 13 therefore conducts and allows the main condenser 2 to discharge through it, and through the winding 1 of a magneto-strictive transmitter in series therewith. The main condenser discharge tends to set up a damped oscillation, the first positive half-cycle of which causes the winding 1 to transmit a pressure pulse. The next, negative, half-cycle is suppressed by the tube 13 and the tube is extinguished, and will not fire again until triggered by the ball electrode 7. Specification 626,309 also is referred to.
Patent GB-918760-A (GB)
Title: Improvements relating to supported nickel catalysts
IPC: C10G45/36
Filed: 1960-05-04
Abstract: Supported metallic nickel catalysts are prepared by reducing nickel formate on a carrier at a temperature above 300 DEG C. but below that at which damage to the carrier occurs.  Specified carriers are sepiolite, alumina and Kieselguhr.  The catalyst may contain 1-50% of nickel and may be subjected to attrition. Preferably the nickel formate is reduced between 400 DEG  and 600 DEG C. in a non-oxidizing atmosphere, e.g. hydrogen or inert gas, at a pressure from 0-50 p.s.i.g.  The catalyst may be used to hydrogenate selectively gasoline obtained from a thermal cracking process operated at 460 DEG -900 DEG C. by passage of the gasoline and hydrogen over a catalyst prepared as above.  Suitable hydrogenation conditions may be:-Temperature 0 DEG -200 DEG C. (preferably 80 DEG -180 DEG C.) Pressure 0-1000 p.s.i.g. (preferably 200-500 p.s.i.g.) Gas Recycle Rate 300-2000 SCF/B of (recycle or once through) hydrogen Space Velocity 0,5-10 v/v/hr. (preferably about 2 v/v/hr.) Comparative examples are given.  Specifications 899,652 and 918,759 are referred to.
Patent GB-1244705-A (GB)
Title: Thermally assisted well liner removal
Inventor: HUTCHISON STANLEY OSCAR
IPC: E21B31/20
Filed: 1970-04-02
Abstract: 1,244,705. Boring earth and rock; wells &c. CHEVRON RESEARCH CO. 2 April, 1970 [2 April, 1969], No. 15778/70. Heading E1F; An apparatus for the thermally. assisted removal of a well liner 12 comprises a a spear 18 having a tubing tail 26 in fluid communication with a source 32 of hot fluid and a source 44 of fluid foam, via a bumper sub 22 and tubing string 24. The apparatus is lowered into the well by a hoist connected to an elevator 62 and the liner gripped by slips 20. A pull is exerted by the hoist and hot fluid (steam) injected through the string to heat the liner. If the liner is not freed from the well wall by thermal expansion, a thermal shock is applied by shutting off the steam and injecting a fluid foam down the tubes 24, 26 and the annulus 23. Fluid, which may be the foam, may be circulated before the steam is passed, to remove unwanted sand and well fluids.
Patent GB-795414-A (GB)
Title: Acid milling of phthalocyanine pigments
IPC: C09B67/00
Filed: 1956-05-22
Abstract: Phthalocyanines are conditioned by kneading them with an acid-stable, water-soluble inorganic salt and a quantity of sulphuric, chloracetic, phosphoric, chlorsulphonic, or alkyl sulphonic acid having a concentration of 68-100 per cent, and drowning the magma in water, there being employed, for each part of pigment, 0.5-5.0 parts of salt and 0.5 to 2 parts of acid.  In examples, copper hexadecachlorophhatlocyanine, copper phthalocyanine and metal-free phthalocyanine are each kneaded with sulphuric acid and sodium sulphate.  Phosphates may also be used as salts.  Specification 711,677 is referred to.
Patent GB-825352-A (GB)
Title: Improvements in broaching and broaching machines
Inventor: POYNTER CYRIL EDWARD
IPC: B23D37/00
Filed: 1958-05-16
Abstract: 825,352. Broaching. WEATHERLEY OILGEAR Ltd. May 16, 1958, No. 15871/58. Class 83 (3). In a broaching-machine, a broach-bar is reciprocated by a conventional method such as an hydraulic-ram &c., and the tool is given secondary, multiple, small reciprocations, the frequency of which are below the supersonic range. In one form, the machine has a frame 1, Fig. 1, a bar 2 reciprocated in guides 3 by a ram 4, and work 6 on a table 5. A tool-holder 7, carrying a tool 9, is reciprocated in guides 8 of the bar 2 by driving means 10 through a link 11. The means 10 may be a crank and connecting- rod; a solenoid; a pneumatic or hydraulic-ram or pulsating pressure-fluid. In a mechanical construction, an eccentric 20 mounted on a carrier 30, adjustable about a pivot 32 on plate 12 by a screw 33, is driven by a belt 19 from a motor 18, and reciprocates a tool-holder 25 through a link 21, a bell-crank 22, and a link 23. A block 26, attached to plate 12, supports guides for the tool-holder, having toothed-segments 27, 28 of a tool fixed thereto by screws 29, the segments also being supported by a block 31, held by screws to the block 26. The broachbar may support a number of tools having secondary reciprocations imparted thereto, each of which is out of phase with the others to reduce the vibratory effect. The holder 7 may support the work and the tool may be mounted on the support 5. The linear relative motion between the tool-holder and work may be non-uniform in velocity, and the frequency of the reciprocation may be varied during a cutting operation.
Patent GB-1140355-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
Inventor: CUSHING CYRIL ALBERT
IPC: F02B75/02
Filed: 1965-04-14
Abstract: 1,140,355. Two stroke engines; driving gear. ENGLISH ELECTRIC CO. Ltd. May 17, 1966 [April 14, 1965], No.15904/65. Heading F1B. The pistons 21, 22, of inter-connected cylinders are connected by rods 24, 25, to a common bigend bearing block 28 which has an arm 33 pivoted to a link 34 which is pivoted at 34A on the crankcase. The link 34 controls the motor of the block 28 such that the exhaust port 19 opens and closes before the inlet port 18.
Patent GB-883111-A (GB)
Title: Process for the manufacture of velvets or plushes on a warp knitting machine
IPC: D04B21/02
Filed: 1958-05-19
Abstract: 883,111. Knitting. MANUFACTURES J. B. MARTIN, J. MARTIN, A. CHARBIN & CIE. May 19, 1958 [May 17, 1957], No. 15924/58. Class 74 (2). Velvets or plushes are made on a warp knitting-machine by arranging that some of the needles shall be utilized for the production of the base fabric and the remaining needles only for pile yarn loops or floats, which may be produced on either side or on both sides of the fabric. The base fabric is knitted only on alternate needles, indicated by the heavy vertical lines. The pile yarns are knitted in with the base fabric at some courses only and, between these courses, are taken by the intervening needles indicated by the light arrowed lines, which intervening needles, since they do not already bear loops, cast off the loops of pile yarn lapped around them. In Fig. 1, pile yarns fed by the front carrier bar of a twobar machine are shown in full lines, whilst ground yarns fed by the other bar are shown in broken lines. Fig. 11 shows a fabric having loops on both faces and produced by the use of four carrier bars.
Patent GB-1523707-A (GB)
Title: Production of discrete fibres of a cellulose ester
IPC: D21H13/06
Filed: 1977-04-18
Abstract: 1523707 Paper comprising cellulose alkanoate fibres CROWN ZELLERBACH CORP 18 April 1977 16057/77 Heading D2B [Also in Division B5] Discrete fibres of a cellulose alkanoate, suitable for making paper are prepared by extruding, at a temperature between 120 and 200‹C, an emulsion comprising the cellulose alkanoate, a water-miscible solvent for the cellulose alkanoate which boils below 100‹C and 40-99% or water based on the combined volumes of solvent and water, which emulsion comprises droplets of cellulose alkanoate and solvent dispersed in a continuous aqueous solvent phase. Cellulose acetate fibres made in an Example are used alone or with wood fibres to make handsheets.
Patent GB-757906-A (GB)
Title: Improvements in or relating to forming a coating on a workpiece
IPC: B05C1/02
Filed: 1953-06-11
Abstract: <PICT:0757906/III/1> After liquid has been applied by the peripheral surface of a rotary roll to a workpiece in the form of a stripe having an unwanted longitudinal bead, and before such bead has dried, the liquid of the bead is spread over the stripe by the action thereon of a jet of gas.  As shown in Fig. 1, apparatus for applying a marginal stripe of latex, as described in Specification 302,958, [Class 95] is modified by the inclusion of a nozle 64 to which compressed air is supplied and which directs the compressed air on to the bead of latex formed by the stripe-applying roll 38.
Patent GB-731250-A (GB)
Title: Reciprocating pumps
Inventor: GORHAM GEORGE
IPC: F04B53/00
Filed: 1951-07-06
Abstract: 731,250. Reciprocating pumps. WEISKOPF, E. C., and WHITEHEAD, E. C. [trading as TECHNICON C.] July 6, 1951, No. 16126/51. Class 102 (1). A pump for delivering measured quantities comprises a frame 10 to which are connected a cylinder block 14 and valve housing 22 by means of clamping means 74. The piston is connected by screw 116 to an operating member 108 carrying a roller 104 maintained in contact with a cam 102 by springs 120. The stroke of the pump is limited by the engagement between a ball 142 and an adjustable screw 140. Thescrew 140 is connected to and adjusted by a drum 142 marked with a scale 144. The drum 142 carries a toothed ring 160 which meshes with planet wheels 162 also meshing with a fixed toothed ring 166 ; the planet wheels 162 are carried by a second drum 150 which is driven at a reduced speed by the drum 142 and is marked with a scale 152 that is complementary to the scale 144. The scales are visible through a window 172 in the frame 10. A slide valve 36 is actuated by a lever 78 which is oscillated by a cam 84 and the valve has a passage 38 which connects the inlet opening 50 to the cylinder 44 and a passage 40 which connects the cylinder 44 to the outlet 51. By releasing the clamp 74 and the screw 116, the cylinder block 14, piston 21 and valve housing are easily dismantled. Different sizes of pistons and cylinders may be available for fitting to the frame 10..
Patent GB-822729-A (GB)
Title: Improvements in or relating to the manufacture of articles comprising polyethylene
Inventor: BRUCE CHARLES RICHARD
IPC: C08K5/3445
Filed: 1956-05-24
Abstract: Polyethylene articles, e.g. films, sheets, tubes, coatings, filaments, fibres, moulded articles and granules are coated with a thin surface anti-static layer of a 1-hydroxyethyl 2-alkyl glyoxalidine of the type <FORM:0822729/III/1> wherein R is an alkyl group comprising a straight chain of between 10 and 20 carbon atoms. The preferred glyoxalidine is the dodecyl derivative and, in two examples, it contains a small amount of hydroxyethylaminoethyl lauramide.  The polyethylene may be modified by the addition of other substances e.g. raw rubber, polyisobutylene, paraffin wax, gum dammar, polyvinyl acetate or a dye, pigment or filler.  The glyoxalidine may be applied, e.g. by rollers in solution in a volatile solvent, e.g. ethyl alcohol or methyl ethyl ketone, or in aqueous dispersion or polyethylene granules, prior to moulding, may be coated by mixing with the molten glyoxalidine.  Specifications 614,594, [Group IV (a)], 681,517; 723,631 and 731,728, [both in Group IV (a)], are referred to.ALSO:A composition comprises polyethylene and a 1-hydroxyethyl 2-alkyl glyoxalidine of the type: <FORM:0822729/IV (a)/1> wherein R is an alkyl group comprising a straight chain of between 10 and 20 carbon atoms.  The preferred glyoxalidine is the 2-dodecyl derivative and the preferred proportions are 0.001 to 0.5% in the polymer.  The polyethylene preferably has a molecular weight between 14,000 and 44,000 and may be modified by the addition of natural or artificial plastic material such as raw rubber, polyisobutylene, wax, e.g. paraffin wax, a resin, e.g. gum dammar or polyvinyl acetate, or a dye, pigment or filler. The composition may be formed into articles such as fibres, filaments, coatings, tubes, sheets, films and moulded articles; which articles, upon cooling, exude the glyoxalidine to form a uniform, thin surface coating which reduces surface electrostatic charge. Film made from the composition may be treated on one or both surfaces to improve the printing properties, e.g. as disclosed in Specification 723,631.  The glyoxalidine used in two examples contains a small proportion of hydroxyethylaminoethyl lauramide impurity. Specifications 614,594, 681,517 [Group III], and 731,728 also are referred to.
Patent GB-1456907-A (GB)
Title: Knitted articles
IPC: D04B9/42
Filed: 1974-04-11
Abstract: 1456907 Knitting BILLI SpA 11 April 1974 [13 April 1973] 16190/74 Heading D1L Toe to toe knitted tights have a waist opening formed transversely of the tube by dropping all stitches over an arc and then resuming knitting over the arc again. Adjacent the opening there are zones 16, 28 with an elastic yarn knitted with the normal yarn in alternate courses and zones 24, 26 with elastic yarn knitted in and tuck stitches.
Patent GB-1335953-A (GB)
Title: Dc keyed synthesis organ
IPC: G10H1/08
Filed: 1972-04-07
Abstract: 1335953 Electrophonic musical instruments HAMMOND CORP 7 April 1972 [19 April 1971] 16219/72 Heading G5J In a keying system for simultaneously keying the desired group of harmonic and fundamental frequencies for a note produced in a synthesis type electric organ, a substrate block 10 corresponding to one of the selectable notes on the keyboard, is divided into nine identical sections marked SF, S3, F, 2, 3, 4, 5, 6 and 8 which each contain a pair of MOSFET transistors 82, 84, which switch, on actuation of playing key 92, into the output section 106 via sinusoidal signal filters 102, the square wave signals 34, 36, 20, 22, 24, 26, 28, 30, 32 respectively, which are applied at the gate of each respective transistor 82, and which correspond to the subfundamental, subthird, fundamental, second harmonic, third harmonic, fourth harmonic, fifth harmonic, sixth harmonic and eighth harmonic frequencies of the note selected by actuating key 92, which connects a - 25 V gating voltage via an envelope shaping circuit comprising, e.g. components 96, 98, 100, to the gates of MOSFET's 84. The relative amplitudes of the harmonics so filtered and mixed can be adjusted individually, to vary the tone colour of the note produced by means of slides at 60. Each slide 62 is connected to the input of each corresponding transistor 82 and applies a variable voltage thereto obtained from voltage supply 40 via tapped resistor 42, thus varying the gain of the transistor and hence the amplitude of the square wave signal controlled by each transistor 84. In a further embodiment, transistors 82 and 84 are interchanged.
Patent GB-226247-A (GB)
Title: Improved method of and means for illuminating the identification numbers of motor road vehicles
IPC: B60Q1/56
Filed: 1923-06-22
Abstract: 226,247. Chenhalls, L. N. June 22, 1923. Signs.-An illuminated number plate for vehicles comprises a metal casing a supported by brackets b and having the letters or figures stencilled on its wall or walls or upon removable plates, behind which is a sheet or sheets of transparent material. As shown in Figs. 3 and 4, both faces of the casing are provided with flanges c to hold the removable plates. An electric lamp d and an acetylene burner e are carried by the ends of the casing, which are hinged at f and held by catches h. In a modification, a squarefronted casing has flanges for two stencil plates and has a danger light extension at one side. Reference has been directed by the Comptroller to Specifications 192,440, 193,503, 195,250. 195,792 and 198,753.
Patent GB-624249-A (GB)
Title: Improvements in devices for playing games of chance
IPC: A63F5/04
Filed: 1947-06-20
Abstract: 624,249. Chance apparatus. WALSS, W. June .20, 1947, No. 16362. Convention date, Dec. 26, 1946. [Class 132 (ii)] [Also in Group XXIV] In game apparatus as described in Specification 332,802, [Class 132 (ii)], a rotating disc 13 is reremovably mounted on a plate 12 secured to a member 14 carrying teeth 15 and to a sleeve member 8 fitted with a driven gear 10 and embracing a pin 5 secured to the base of the apparatus. The upper end of pin 5 carries, teeth 6 which coact with teeth 15 to justify the disc when it stops, the teeth riding out of engagement when the disc 13 is rotated by the driven gear 10. An intermediate gear 16, mounted on a pivot 17 fitted in slots 18 in a forked bracket 20, co-acts with a geared sector plate 21 pivoted at 23 to the base and fitted with an operating lever 22 extending beyond the edge of the apparatus. A spring 27 urges the lever 22 anticlockwise as shown in Fig. 3. On operation of the lever 22 the sector 21 engaging the gear 16, moves this gear along the slots 18 into engagement with the gear 10 which is then rotated. On releasing the lever 22, continued rotation of the gear 10 urges the gear 16 back along the slots 18 to disengage the driving mechanism. Specification 375,631 also is referred to.
Patent GB-141572-A (GB)
Title: Improvements relating to purifiers employed in gas works
IPC: C10K1/28
Filed: 1919-06-30
Abstract: 141,572. Dempster, R. & J., and Beard, G. F. H. June 30, 1919. Purifiers.-Gas-purifiers fitted with valves m<1>, n<1>, as described in Specification 844/15, are arranged so that the walls m<2>, n<2> of the boxes are common both to the gas conduits k, l and the valve chambers. The conduits are completed by a cover-plate e, base plate f, and a division plate i.
Patent GB-766903-A (GB)
Title: Improvements in or relating to knife sharpening devices or appliances of or for slicing machines having rotary knives
Inventor: GRIFFITHS ALFRED VIVIAN
IPC: B24B3/46
Filed: 1954-06-03
Abstract: 766,903. Sharpening machine cutters in situ. ASCO, Ltd. May 31, 1955 [June 3, 1954], No. 16380/54. Class 60. The rotary circular knife y of a slicing. machine is sharpened by two rotatable abrasive wheels 16, 17 carried by a mounting bracket 11 secured to the reduced upper end 10a of a vertical spindle 10 rotatable in a bracket x of the slicing machine. The wheel 16 for grinding the bevelled edge of the knife has a spindle 16a in a bearing sleeve 14 slidable in a sleeve portion 12 integral with the bracket 11; a helical spring 18 urges the wheel 16 to- .ward the knife. The wheel 17 for removing burr caused by the wheel 16 has a spindle 17a in a bearing sleeve 15slidable in a sleeve portion 13 integral with the .bracket 11; a compression spring 28 urges the wheel 17 toward the knife. A pin 19 extends from bearing sleeve 14 through a slot 12a of sleeve 12 and carries the boss 20a of a acrew-threaded link 20 carrying nuts 21, 22; between the nuts is located .the end 23a of an arm 23 pivoted at 24 to an extension of sleeve 13. A spring 25 is connected between the arm 23 and sleeve 13, and the arm 23 is engaged by a cam 34 on a cam sleeve 32 rotatable, by handle 33, on the reduced upper end 10a of spindle 10. The cam sleeve 32 also carries a cam 31 which acts through rocker arm 29, pivoted at 30 on bracket 11, on the end of spindle 17a of wheel 17. When handle 33 is placed in position "G", cam 34 allows the yoked end 23a of arm 23 to engage nut 22 on link 20 and grinding wheel 16 engages the knife under the combined influence of springs 18, 25; the cam 31 engages the rocker arm 29 to maintain the finishing wheel 17 clear of the knife. handle 33 is then placed in position F, wherein cam 31 is clear of rocker arm 29 so that finishing wheel 17 engages the knife under the influence of spring 28; cam 34 engages arm 23, so that grinding wheel 16 engages the knife under the pressure of spring 18 only, i.e. the pressure of the grinding wheel is reduced. When the handle 33 is placed in position "N", both wheels 16, 17 are retracted from the knife. The cam sleeve 32 may be biased toward the "N" position so that it is necessary for the operator to hold the lever in either of the operative positions.