baber/WOPTO huggingface dataset:
Patent GB-739756-A (GB)
Title: Improvements in or relating to clock-pulse generating devices
IPC: G06F9/32
Filed: 1954-01-21
Abstract: 739,756. Pulse generating circuits. SOC. D'ELECTRONIQUE ET D'AUTOMATISME Jan. 21, 1954 [Jan. 24, 1953], No. 1854/54. Class 40 (6). A circuit for generating and distributing to separate channels a number of synchronizing pulses each having a predetermined phase-shift with respect to one another, comprises a corresponding number of pulse regenerative amplifiers each of which is triggered by a signal derived from the synchronizing signal and at least one output from another pulse regenerative amplifier the amplifier having its output signal maintained under the control of a signal derived from the synchronizing signal, the output signals from the amplifiers being distributed to separate output channels. Fig. 14 shows a pulse generating circuit in which output signals S0, S1 ... S9 (Fig. 13), are produced sequentially at separate outputs from a clock pulse synchronizing signal a (Fig. 13), via pulse trains b, b ; c, c which are derived from it. The circuit has pulse regenerative amplifiers R0 R1 ... R9, each of which may comprise as shown in Fig. 5 or Fig. 6 (not shown), an amplifier 1 having a transformer output with a feed-back circuit F and outputs T and T of opposite polarity which have diode limiters associated therewith. Each regenerative amplifier, for example R0, has in its input circuit an AND gate to which inputs b, c, (Fig. 13), are applied externally and inputs T1, T3, T5 and T7 are applied from other regenerative amplifiers in the system. The output from the AND gate is applied to an OR gate to the other input of which an input T0 is applied from the output of the amplifier, the output of the OR gate is applied to a further AND gate to the other input of which pulse train b+c is applied. The output from the amplifier TO is applied to an AND gate to which pulse train c is applied the output pulse train S0 being generated. The inputs such as b, b; c, c to the generating circuit shown in Fig. 14 are themselves derived from similar generating circuits such as that shown in Figs. 7 and 8. By suitable combinations of gates and amplifiers with appropriate feedback connections, Figs. 10 and 12 (not shown), other trains of pulse bearing predetermined phase relationships to the clock pulses may be generated.
Patent GB-102080-A (GB)
Title: Improvements in Absorption Refrigerating Apparatus.
Inventor: WILLSIE HENRY ELMER
IPC: F25B17/00
Filed: 1916-02-10
Abstract: 102,080. Willsie, H. E. Feb. 10, 1916. Valves actuated by vessels receiving and discharging liquids.-A valve 34 supplying gas to a burner 9 heating the generator 10 of a refrigerating plant is controlled automatically by the weight of liquor in the generator, which is supported at one end by a balanced lever 31 adapted to actuate the valve. A tumbler weight 35 is fitted to the valve, which has a bye-pass for a pilot light.
Patent GB-1494701-A (GB)
Title: Variable attenuation equalizers
IPC: H03H7/01
Filed: 1975-01-17
Abstract: 1494701 Variable attenuation equalizers WILHELM RUF KG 17 Jan 1975 [29 Jan 1974] 2099/75 Heading H3U [Also in Division H1] A variable attenuation equalizer network for use up to 900 MHz comprises a bridged-T network containing two fixed resistors 1, 2 bridged by a series resonant circuit formed by inductor 3 and capacitor 4 in parallel with a first variable resistor 5, the shunt impedance being a parallel resonant circuit formed by inductor 10 and capacitor 9 in series with a second variable resistor 8 which is ganged with variable resistor 5, a plate of each of the capacitors 4, 9 serving as a wiper track for the associated variable resistor. The various circuit components and their interconnections are arranged on an insulating support (13, Figs. 2-4, not shown). A wiper arrangement (Fig. 5, not shown) is provided to vary the resistors 5, 8 which may be both linear, both logarithmic, or one of each.
Patent GB-1287193-A (GB)
Title: Size grading of articles
Inventor: LEFEVRE RAYMOND LEON RENE
IPC: B07B13/04
Filed: 1970-01-15
Abstract: 1287193 Size-grading of articles UNITED KINGDOM ATOMIC ENERGY AUTHORITY 11 Jan 1971 [15 Jan 1970] 2101/70 Heading B2H In an apparatus for grading articles according to size, the articles 13 are guided into an open-topped channel A (B), whose base has an aperture 4(5) defined by gauging surfaces spaced apart to permit the passage through the aperture of those articles below a given size, and the channel is rotated or rocked to eject articles above the given size retained therein. As shown, the channels A, B are formed longitudinally in a cylinder 1 rotating about an axis x. Each channel has inwardly tapering side faces a, b which guide the articles to the gauging surfaces of the aperture 4(5). The articles passing through the appertures 4, 5, Fig. 2 fall through divergent passageways 6, formed in the cylinder and drop into a compartment 15 below the cylinder. As the cylinder rotates a cam rotating therewith reciprocates a probe 8 via a follower on the probe, the nose 9 of the probe entering the respective aperture 4(5) and clearing it of any wedged articles. A number of cylinders may be arranged in series with progressively closer spacing of the gauging surfaces defining the apertures of the channels. Instead of being fed vertically the articles may be allowed to roll into the channel from one end thereof and the channel may be emptied by rocking it about an axis transverse to its length.
Patent GB-805541-A (GB)
Title: Improvements in or relating to working refractory metals
Inventor: BRADLEY HAROLD
IPC: G21C3/60
Filed: 1943-02-08
Abstract: 805,541. Altering physical structure; working at specified temperatures. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 2, 1944 [Feb. 8, 1943], No. 2104/43. Class 83 (4). Uranium is heated to a temperature between 800‹ C. and 1050‹ C. in an inert medium and subjected to a working operation while it is in this temperature range. The uranium is heated in a fused salt bath composed of one or more alkali metal halides or alkaline earth metal halides, e.g. barium chloride, sodium chloride or a eutectic mixture thereof. In an embodiment a uranium bar is heated between 850 and 1050‹ C. and then removed and hammer forged. Several reheats may be required and finally the metal is allowed to cool in air or quenched in oil or water. In another embodiment uranium slabs are hot rolled into sheets by heating them in the salt bath to 1000‹ C. and passing them through rolls preheated by a gas flame to 300‹ C. Alternatively the heating is carried out in vacuo or in an inert atmosphere e.g. argon, or the uranium may be enclosed in a container and the container heated in a furnace.
Patent GB-949604-A (GB)
Title: Method of and means for producing disposable containers and lids therefor
IPC: B29C51/10
Filed: 1959-01-21
Abstract: 949,604. Moulding containers. JOHN WADDINGTON Ltd., and T. N. GAUNT. April 21, 1960 [Jan. 21, 1959], No. 2196/59. Heading B5A. [Also in Division B8] A disposable container, lid or closure therefor is formed by vacuum moulding a plastic sheet in a mould having at one part a cavity which is greater in depth than diameter, so that the sheet in this area is thinner and thus allows the sheet to be perforated easily by, e.g. a straw. Areas around the indented part may be masked out to prevent heating during moulding.
Patent GB-712440-A (GB)
Title: Improvements in or relating to the dealkylation of alkylated aromatic hydrocarbons
IPC: C07C4/16
Filed: 1952-01-28
Abstract: Alkyl aromatic hydrocarbons are de-alkylated by contacting at 1100-1800 DEG , preferably 1200-1400 DEG  F., and 200-1000, preferably 400-700 p.s.i.g., with at least one molecule of hydrogen per atom of alkyl carbon, in the absence of metallic iron and solids which catalyse the de-alkylation.  Preferably the contact time is correlated with the desired degree of conversion in accordance with the equation <FORM:0712440/IV (b)/1> where e is the contact time in seconds, f the desired degree of conversion, K the reaction constant, and PH the hydrogen partial pressure in atmospheres.  For a 90 per cent conversion, <FORM:0712440/IV (b)/2> Contact times generally range from 1-120 seconds.  Curves plotting reaction constant against temperature for toluene and xylenes, and equations for calculating the same are given.  The feedstock may be pure alkyl aromatics boiling from 200-600 DEG  F., e.g. toluene up to amyl benzene or alkyl naphthalenes.  It may include paraffins and naphthenes. Cracked naphthas, hydroformed products, fractions of crude petroleum or solvent extracts may be used.  The amount of hydrogen may be up to 5 molecules per atom of alkyl carbon, and the partial pressure should be at least 30 atmos.  The reactor may be a heated coil, if desired combined with a soaking zone.  The surfaces may be ceramic or chrome-nickel steel.  The latter may be rendered inactive by poisoning, e.g. by adding sulphur compounds.  The products may be separated by distillation and/or adsorption on solid adsorbents. Examples illustrate how different aromatics may be produced from the same feedstock by varying reaction conditions, e.g. benzene, toluene or C8 from an aromatic extract of kerosene, and from different feedstocks, e.g. naphthalene from a 400-600 DEG  F. kerosene extract. The reaction may be effected in the presence of a finely-divided inert solid, preferably as a fluidized bed.  The feedstock may be obtained by hydroforming a naphthenic naphtha boiling at 250-450 DEG F., using a fluidized catalyst such as a Group 6 metal oxide, platinum or palladium, separating a motor fuel fraction, and a fraction boiling at 300-450 DEG  F. comprising C8-C11 alkyl aromatics which is preheated, say to 800-900 DEG  F., and fed with hydrogen obtained from the hydroforming stage to the de-alkylation.
Patent GB-211850-A (GB)
Title: Improvements in spools or magazine spools for kinematograph films
IPC: G03B21/32
Filed: 1924-01-29
Abstract: 211,850. PathÚ CinÚma, Anciens Etablissements PathÚ FrÞres. Feb. 23, 1923, [Convention date]. Roll spools.-Film spools and storage reels for kinematographic films in which the film is attached to a central core, capable of rotation independently of the side walls, are provided with a device to permit ready attachment and detachment of the end of the film. The tubular metallic core a rotates loosely in the side walls c and has a longitudinal slot d through which the end of the film is passed. Within the core is a tubular-shaped spring f, which is compressed for insertion, and is then permitted to expand against the interior of the core a so that it grips the end of the film. The ends of the core a are flanged to retain its relative position with respect to the walls c. A square opening g at one end of the core, enables the film to be wound when in position in the kinematograph. The side walls c are provided with reinforcing ribs j and with bosses i to prevent the spool from turning when in the operative position. In the Specification as open to inspection under Sect. 91 (3) (a) the invention is stated to be applicable to photographic films. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1454352-A (GB)
Title: Flux for hot-galvanizing
IPC: C23C2/06
Filed: 1974-01-18
Abstract: 1454352 Galvanizing flux BASF AG 18 Jan 1974 [20 Jan 1973] 02417/74 Headings C7F and C7M A galvanizing flux for iron articles comprises an aqueous solution of ZnCl 2  and HCl with optionally NaCl and/or KCl. The total content of the ZnCl 2  and HCl is from 25-60 wt. per cent of the total amount of water, and the NaCl and KCl, if present, total up to 60 wt. per cent of the weight of ZnCl 2 . In Examples, a continuous Fe belt is degreased, acid-treated, rinsed in water, passed through a flux solution, dried in an oven and galvanized in a Zn bath at 450‹C. Fluxes dislcosed are (1) 60 kg ZnCl 2 , 8 kg NaCl, 11 kg KCl, 8 kg of 23% of HCl solution, and 95 1 of H 2 O; (2) 45 kg ZnCl 2 , 6 kg NaCl, 8 kg KCl, 11 kg of 23% HCl solution, and 90 1 of H 2 O; and (3) 75 kg ZnCl 2 , 10 kg of 23% HCl solution and 90 1 of H 2 O.
Patent GB-939584-A (GB)
Title: Improvements in or relating to permanent magnet chucks and holding devices
Inventor: BOWER WILLIAM LESLIE
IPC: B23Q3/154
Filed: 1961-01-21
Abstract: 939,584. Holding devices. JAMES NEILL & CO. (SHEFFIELD) Ltd. Jan. 19, 1962 [Jan. 21, 1961], No. 2518/61. Class 35. A magnetic holding device has a grid 7 consisting of spaced bars of high permeability material which slides between the holding surface assembly and the magnet assembly and switches the holder " on " or " off." The holding surface comprises an assembly of alternate plates of high permeability material 1 and non- magnetic material 2 and the magnet assembly has magnet plates 9 separated by permeable spacers 8. The magnets which are made of high coercivity material e.g. barium ferrite, are magnetized across their thickness in opposite directions and are supported on non-magnetic inserts 15 in base 6. In the " on " position shown the bars of the shunt grid 7 are positioned to magnetically connect each spacer 8 with its corresponding plate 1 in the holding face to retain a workpiece 17 as shown. In the " off " position, Fig. 4 (not shown), the grid is moved to the right so that each bar spans adjacent spacers 8 and short circuits the flux to release the workpiece. The grid bars must be wider than a magnet plate but narrower than the combined width of a magnet plate and spacer and the necessary movement may be less than half the width of a magnet plate. In a modification, one magnet assembly is in contact with the holding surface and separated by the movable shunt grid from another similar magnet assembly which is spaced from the first by the width of a magnet plate, Figs. 7, 8 (not shown). In all examples narrow workpieces 16 are effectively held by the reinforcement of the main flux by a second flux which passes through the base 6, and better release obtained by using the maximum possible width of the shunt bar together with narrow non-magnetic inserts in the holding surface.
Patent GB-174637-A (GB)
Title: Improvements in aeroplanes
IPC: B64C35/00
Filed: 1922-01-27
Abstract: 174,637. Schreck, L. Jan. 31, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Stud-and-slot fastenings -A member o, on a retract able aircraft chassis, may be locked by two jaws p pivoted at q to the fuselage and operated against a spring r, to engage slots ir the members, by a lever through a cam s.
Patent GB-1148342-A (GB)
Title: Apparatus for evacuating and sealing flexible containers, for example plastics bags
IPC: B65B31/06
Filed: 1967-01-18
Abstract: 1,148,342. Vacuum packaging apparatus. RHEEM INTERNATIONAL Inc. 18 Jan., 1967 [19 Jan., 1966], No. 2553/67. Heading B8C. [Also in Division F1] Apparatus for evacuating a filled bag prior to sealing includes a pair of downwardly diverging suction pipes 33, 34 which are introduced into the bag on opposite sides of the contents 66 and may be moved around to empty voids. As the bag is pulled off the pipes, the neck is pressed round them and, just prior to their total withdrawal, a sealing clip is applied, suction being maintained throughout. A device 40, not detailed, attaches a metal clip, fed from a magazine, about the bag neck as the latter is manually pressed into the mouth 48 of the device. Suction is applied by a water pressure-operated ejector 13 (see Division F1). The ejector 13 and pipes 33, 34 are adjustable as to height relative to a table 1, with a water discharge pipe 3 which acts as a support. The clip applicator 40 is adjustable along the pipe 3. A vertical water inlet pipe (10), Fig. 1 (not shown), includes a shut-off valve (54) to destroy the vacuum and a valve (57) in the pipe 3, enables water to be used to flush out the suction pipes.
Patent GB-1464234-A (GB)
Title: Cigarette packers
IPC: B65B19/24
Filed: 1975-01-21
Abstract: 1464234 Making bags AMF Inc 21 Jan 1975 [24 Jan 1974] 2591/75 Heading B5D [Also in Division B8] A cigarette packer includes a series of interconnected packmakers and a series of pack closers 2 moving respectively around first (Fig. 1) and second (Fig. 2) closed paths, each packmaker including a rotatable tubular mandrel 4, at least one pack wrapper bottom flap being folded by a stationary folder after the mandrel 4 has been temporarily rotated. Referring to Figs. 1, 4, 5, a foil sheet FS is clamped to mandrel 4 by cam operated holder 5, and folded about mandrel 4 by stationary folders 10 and cam operated oscillating folders 6, 7. A cam operated holder 8 engages the lower side, as shown, and the pack bottom long side flaps are folded by means of a rotating folder 11 and a stationary folder 12, Fig. 9. A cam operated holder 9 then engages the lower side, and holder 8 disengages. A paper wrapper FC is then wrapped around the mandrel by further guides 10 and folders 6, 7. At this stage, the mandrel 4 is rotated through 90 degrees, the holder 8 including a clutch mechanism which allows it to remain in the engaged position during this rotation. Referring to Fig. 16, the pack bottom short side flaps are folded by a rotating folder 111 and a stationary folder 24, and then the paper wrapper long side bottom flaps are folded by stationary folders 25. Adhesive is applied by nozzle 26 and wheel 27, and a ram (28) (Fig. 18, not shown), presses the pack bottom against rollers 32. The mandrel 4 is now rotated back to its original orientation (section S6, Fig. 1). Referring to Figs. 1, 2, 19, 21 the pack closers 2 are mounted on a drum rotating about axis T1 coincident with axis A1 in Fig. 1. Each pack closer includes a cage rotatable about an axis parallel to axis T1 under control of a cam 37. Cigarettes are pushed from a receptacle 34, through a packet 135 of a compressor drum 35 into the mandrel 4 by a cam operated plunger 33, and plunger 33 and a further cam operated plunger 36 engaging the pack bottom on the outside transfer the cigarettes and pack from the mandrel 4 into the receptacle of a pack closer 2. As shown in Fig. 21, the receptacle accepts the pack in a radial position and then rotates to a tangential position, a cam 44 operating a folder 45 during the rotation to fold one mouth flap. The other mouth flaps are folded by stationary folders 45, 47, adhesive being applied by nozzle 49 and wheel 48. The receptacle is then rotated again to the radial position, and the completed pack is removed by fingers 50 and conveyers 51 (Fig. 25), the receptacle including a pivoted side 40 to permit removal. A label is then applied to the pack.
Patent GB-770705-A (GB)
Title: Improvements in extruders for plastic material
IPC: B29C48/08
Filed: 1955-01-28
Abstract: 770,705. Pug-mills. UNITED STATES RUBBER CO. Jan. 28, 1955 [April 2, 1954], No. 2617/55. Class 86 [Also in Group V] An extruder comprises a multi-flight feed screw 23, Figs. 1 and 2, and a yieldable plunger 21 slidably mounted in a housing 34 in which is located the receiving end 22 of the screw. The plastic material to be extruded is fed in strip form 12 through a slot 24 in the plunger, and when a bank of the material accumulates between the lower end of the plunger and the receiving end of the screw the plunger rises against the resistance of springs 32. The bank is re-fed into the screw by downward movement of the plunger, this downward movement being limited by a plate 38. The plunger and its guides 62 are made of a material, e.g. polytetrafluorethylene, which will not stick to the plastic material. The screw has one flight 39 at its receiving end (up to a point 40), and two flights 39, 41 from the point 40 to its discharge end. In modifications the material may be fed in strip or pellet form not through the plunger but through a passageway at one side thereof. The invention is described in connection with a cross-head extruder for coating an electrical conductor with plastic material.
Patent GB-822838-A (GB)
Title: Improvements in or relating to the manufacture of multi-ply webs for use in the manufacture of bags
Inventor: WILLIAMS RUSSELL J
IPC: B31B39/60
Filed: 1957-01-24
Abstract: 822,838. Multi-ply paper and like bags. BEMIS BRO. BAG CO. Jan. 24, 1957, No. 2667/57. Drawings to Specification. Class 94(2). [Also in Group VIII] The subject-matter relates to details of the web cutting (see Group VIII) and feeding mechanism for placing paper patches between webs in making bags, as described in Specification 807,026. Reference has been directed by the Comptroller to Specification 807,026.
Patent GB-1476883-A (GB)
Title: Oxygenation of water
IPC: A01K61/10
Filed: 1975-01-22
Abstract: 1476883 Aerating liquids AIR PRODUCTS & CHEMICALS INC 20 Jan 1976 [22 Jan 1975] 2723/75 Heading B1C ]Also in Division A1] A method of fish farming comprises growing fish in water having an average dissolved oxygen level which is maintained above saturation by bringing the water into contact with gas comprising at least 25% by volume oxygen, the residue (if any) of the gas being mainly nitrogen. Saturation is defined as the maximum amount of oxygen which the water would absorb in equilibrium with air under the prevailing ambient conditions. The preferred oxygen level is between 150% and 250% salination; the gas may be introduced through a diffuser, and the undissolved gas collected and recycled through the same or another body of water. An apparatus, Fig. 2, comprises a cascade of tanks 32, 32, 34, 36, 38, 40 each overflowing into the next. Oxygen is supplied from line 44 to diffusers 50, 58; undissolved gas is collected by collectors 60, 70 and passed through line 62 (the valve 94 being closed) to a cyclone 64 where moisture is removed, and then recycled by a compressor 80 and line 84 to diffusers 88, 90 in tanks 38, 32. Collectors 66, 74 in these tanks also return undissolved gas to line 62.
Patent GB-178575-A (GB)
Title: Improvements in and relating to electric telegraphy
IPC: H04L25/49
Filed: 1921-01-21
Abstract: 178,575. Davies, B., and Eastern Telegraph Co., Ltd. Jan. 21, 1921. Moving coil relays are described in connection with a system of telegraphy employing synchronous transmitters and receivers. The contact arm J is pivoted loosely to the moving coil C and normally rests on contact O. When a signal is received, the part AB which is attached to the coil C moves to the left and contact B touches J causing the charging of condenser S from battery Z,. The arm J stops on contact 1 and at the finish of the signal the coil C starts to return, and causes a contact beween the arm J and contact A. This allows condenser S to discharge and become oppositely recharged from battery Z1, and a current flows through the magnet Mq which will be connected to contact 1 at this instant. Specification 118,303, [Class 100 (iv), Typewriters &c.], is referred to.